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IMPLEMENT INSPECTOR`S HANDBOOK

1. Open MAX mm 406 4 406 4 406 4 WMA MASTERS MAX mm 410 0 410 0 410 0 410 0 410 0 410 0 HANDLE triangular MAX mm 190 190 190 190 190 190 190 190 MIN mm 100 100 100 100 100 100 100 100 CENTER OF GRAVITY MAX mm 6 6 6 6 6 6 DIAMETER MIN mm 145 130 120 110 100 95 MAX mm 165 150 140 130 120 110 INDOOR DIAMETER WMA MAX mm 180 165 155 145 135 125 NOTE 4 kg weight spec and W75 group effective 5 1 10 inside dimensions For NCAA meets accept the 20 and 35 Ibs weights if they meet the imperial weight even if slightly below the metric equivalent Footnotes Internal movement allowed in NCAA Indoor implements No internal movement i e solid sphere for USATF and WMA implement USATF National Officials Committee Training Monograph Series February 2011 Rev 0 V USA THROWING IMPLEMENT SPECIFICATIONS SUMMARY TABLE 3 PAGE 39 TRACK amp FIELD ULTRAWEIGHT PENTATHLON Age Group Weight Ib ME 35 Ib 20 kg 56 Ib 98 Ib 200 Ib 300 Ib MEN Open 49 35 56 X X X 50 59 25 56 X X X 60 69 20 44 X X X T0 79 16 35 X X X 80 12 25 X X X WOMEN Age GrouP Weight Ib DE 20 Ib 2516 351 20 kg 56 Ib 98 Ib Open 49 20 35 X X X 50 59 16 25 X x x 60 74 12 20 X X X 15 4 kg 16 X X X Ref USATF Rule 196 Main body The main body is a cylinder whose diameter shall not be less than 15 25 cm nor more than 26 70 cm Handle The handle shall
2. drive stubby handle chain grip for holding shot or hammer while removing plug Vise Grip model 20R works well dead blow hammer or rubber mallet for tapping stubborn discus plates together small pick or awl set for cleaning out the fasteners on discuses hammers and shots prior to implement disassembly or plug removal Polanik swivel wrench for removing Polanik hammer and weight swivels penetrating oil or liquid wrench to help loosen stubborn bolts lead pellets and scoop for adding weight to shots Loctite or similar plumber compound for indoor weight swivel pins Superglue for javelin grip cord box knife for removing tape from hammer wires and handles USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 8 3 8 and larger washers for adding weight to an indoor throwing weight Notebook To do any needed calculations and to record calibration procedure Also record the following information on any implement that is impounded Owner Athlete School type brand failing parameter condition of implement i e Is failure due to wear or damage or is it a new implement See Appendix for a sample Inspector of Implements form Rulebooks Always have a current rulebook for the type and level of meet you are officiating The specifications are slightly different in some cases particularly in the high school rulebook However now all rulebooks refer to and use IAAF specification
3. shots and hammers The shot rings are designed to check for the maximum and minimum implement diameters All dimensional measurements required in testing a discus are now available with one gauge plate Separate gauge plates are also availahle for the men s women s and 1 5 1 6 kg discus The new gauge designs use the same proven go no go m Easy to use no tip weights or scale i calibration required procedure to check implements W Works for javelin discus hammer shot m Easy reset to zero prior to weighing E Easy to read illuminated digits Hammer W Accurate to the nearest 5 1000 of a pound 2 grams Ga uge m Weighs implements up to 40 pounds 20 000 grams g The hammer gauge now incorporates gauge marks for the men s hammer women s hammer and 35 pound weight wire tension device The javelin balance gauge is used to ensure the javelin is Other Daktronics Products for allows the inspectorto apply properly weighted All javelins pivot from a single point Track amp Field tension to the hammer wire The gauge folds neatly inside itself for easy storage to completely straighten m Scoreboards it before measurement A W Timing Systems hammer balance test pin is Availa ble Models W Start Systems mounted on the hase of the Mark V Collegiate High School and W Manual Timing hammer gauge and calipers competition W Meet Management Systems are provided to measure the Mark YI for Collegiate and High School competition hamme
4. 5 kg 6 25 kg Special Olympics 3 Ib 4 Ib 6 Ib 4 kg Hearing Impaired 800 g 2 0 kg 7 26 kg Weights should be handled with care so as not to damage them so they either gain weight less likely or lose weight by being dropped Note There are 16 oz per Ib 453 5924 g per Ib 28 349527 g per oz and 2 20462 Ib per kg Only the 6 8 and 12 lb shots because they are youth junior high and high school implements respectively are still weighed in pounds The other weights have been accepted internationally and have taken on the metric weight equivalent shown NOTE For NCAA meets accept weight implements weighing 20 Ib and 35 Ib via discussions with Bob Podkaminer and NCAA Rules Committee in February 2006 Note the same is true for high school implements that are specified in pounds USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 15 DAY OF THE MEET 1 Arrive early at the site to make sure equipment being supplied by meet management is present and in good working order Normally this should be at least two hours before the first throwing event If possible do it before the day of the meet 2 Inform the appropriate Event Heads and the Field Referee the type color and location of the mark to be used on the implements that particular day If the possibility of breaking a national or world record exists let the judge and the referee know your location Try to have a location near the venue where an imp
5. 6 15 cm for all 5 Each Piece 3 ft 0 91 m It uses three 3 pieces of 1 x6 lumber with pieces of shelf hanger as sides so the javelins don t roll off All marks were engraved into the wood before it was painted for accuracy The three boards can be held together by hinges or pins to assure constant length Alternatively the USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 7 javelin board can be laid out on a paper or cloth template that can be rolled up and taped to a table or the floor Finally use a hinge or other sharp edge to place at the balance point The original one shown in Fig 23 in the Appendix was only set up for the only three javelins at that time You also can mount rulers along the board to do the overall and midpoint measurement for the contour or simply use a string or wire to get their approximate location by measuring to the center of gravity from either end and then halving the measurement by folding the string back on itself Other Miscellaneous Equipment Wet and Dry Towels for cleaning implements Implement Cart hand truck wheelbarrow wagon or grocery cart for transporting implements Boxes for segregating unmeasured approved and impounded implements You will need a minimum of one per implement type per sex and preferably four for larger meets i e two for check in and two for measured implements of each type or age group Masters championship meets may need one p
6. Gill Implement Certification Kit can be purchased from Gill Athletics 601 Mercury drive Champaign IL 61822 phone 800 637 3090 or 217 367 8438 fax 217 367 8440 and web page www gillathletics com This kit is available for order online and comes in four versions high school without javelin gauge for about 1200 high school with javelin gauge for 2300 NCAA kit for 3200 and full kit for IAAF NCAA USATF WMA and high school for 3600 Implement scales for 15 kg and 20 kg can be purchased separately The UCS kit is available for 3700 and is sold by UCS Spirit 511 Hoffman Road Lincolnton NC 28092 phone 800 526 4856 fax 704 732 9559 and web site www ucsspirit com Since some of the manufactures change their sources for scales it is not possible to specify the accuracy or the tolerance for them Measuring equipment must be handled with care maintained calibrated and properly stored in order to do the best job The misuse of equipment is usually the biggest problem and is the result of lack of knowledge or training Misuse leads to damage which results in inaccuracies even when a competent person is using it NOTE All measurement equipment should be checked at least annually against a known standard The standard should be traceable to a National Institute of Standards and Technology NIST standard This is true for scales weights and measurement devices i e tapes and calipers This applies also to the TRACKMASTER V UCS or Gill
7. Marking Pens Some Marks A Lots should be available in your kit for emergencies but these aren t the best marking devices unless you re making signs Level Used to level scale location Calculator For use in calculating percentages for javelin measurements Caliper Used to measure the hammer wire diameter hammer wire loop diameter hammer handle length and the various points on the javelin Consider an electronic one and keep an extra battery in the box If it has at least 3 72 inch jaws it can be used to measure the discus weight and shot as well as the javelin profile Manual Vernier calipers are less expensive than digital calipers but learn to read the Vernier scale beforehand Handbook Keep a copy of this handbook in a folder Note included in the back are the implement specification tables for all implements in case the individual sheets get misplaced Straight Edge At least 50 centimeters long as a check of the javelin taper or to measure the taper when used with a 0 20 mm feeler gauge Javelin Measuring Gauge You can make your own out of wood or even tape on the edge of the table See Figures 22 and 23 in the Appendix for examples of ones that were made in three pieces so they could be easily transported Both are color coded so that the javelin can be easily measured The one in Figure 22 allows you to do multiple javelins at once for everything but the balance The dimensions are Overall Length 9ft 2 73m Overall Width
8. QUALIFYING DATE __ __ ___ DAY FINALS DATE __ __ DAY NO OF IMPLEMENTS INSPECTED IMPOUNDED PRELIM MARK COLOR OF DAY COLUMNS TO BE FILLED OUT BY ATHLETE OR COACH FINAL MARK COLOR OF DAY AFFILIATION IMPLEMENT SIZE coLoR ALTERNATE IF IMPOUNDED Fr CLAIM COMPETITOR SCHOOLICLUBIBIB NO MANUFACTURER DIAMJDISTANCE DESCRIPTION NUMBER REASON SIGNATURE AJA 9 k c USATF National Officials Committee Training Monograph Series January 2010 Rev 0 TABLE 1 PAGE 29 THROWING IMPLEMENT SPECIFICATIONS SUMMARY 634 USA USATF RULE 200 UNITS IMPLEMENT NAME 726kg 6kg 2 5kg 4kg 3kg 2kg AGE GROUP OPEN MEN WOMEN MASTERS M30 M45 M50 M55 M60 M65 M70 M75 80 W30 W45 W50 W70 W75 JUNIORS MEN WOMEN HIGH SCHOOL BOYS GIRLS WEIGHT NOM Ib 16 00 13 23 12 00 11 02 8 82 6 61 441 NOM Ib oz 16 0 13 3 6 12 0 11 0 3 8 13 6 9 8 4 6 5 NOM kg 7 26 6 00 544 5 00 4 00 3 00 2 00 MIN for record kg 7 260 6 000 5 443 5 000 4000 3 000 2 000 RANGE FOR SUPPLY MIN kg 7 265 6 005 5 450 5 005 4 005 3 005 2 005 MAX kg 7 285 6 025 5475 5 025 4 025 3 025 2 025 DIAMETER MIN mm 110 105 984 100 95 85 80 MAX mm 130 125 117 5 120 110 100 90 OVERALL LENGT
9. be in a triangular or modified triangular shape with no side exceeding 20 cm inside dimension The handle must be rigid and not show evidence of elasticity or malformation after being thrown Connection assembly The main body shall incorporate a permanent eye bolt u bolt or shackle in its construction which may swivel The handle should be connected by means of a removable shackle or links No more than two links shall be used in addition to the hamdle shackle and main body connection Overall length The overall length of the complete implement from the inside surface of the handle grip to the bottom surface of the main body shall not exceed 45 75 cm Weight specifications The ultraweights shall conform to the following specifications Implement 98 Ib 200 Ib 300 Ib Minimum Weight kg 44 50 90 80 136 10 USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 40 TABLE 4 UN NX THROWING IMPLEMENT SPECIFICATIONS SUMMARY USA SHOT SHOT Nominal size UNITS 16 Ib 6 kg 12 Ib 5 kg 4 kg 3 kg 6 Ib 2 kg Age group USATF NCAA Open Men Women USATF Masters Men M30 M45 M50 M55 M60 M65 M70 M75 M80 USATF Masters Women W30 W45 W50 W70 W75 USATF Youth Boys young men Youth Midget USATF Youth Boys Int boys Ban
10. event Typically this is so they arrive about 30 to 35 minutes before the event starts Make sure to turn them over to an event official and not just leave them on the field CHECKING OF EQUIPMENT The following sections are ordered in such a manner so the most common implement defects are listed first in order to minimize time spent on equipment that eventually will not pass The order was generated from a consensus of the most experienced implement inspectors in the country The order may be varied at the implement inspector s discretion but be consistent and don t leave out a measurement RECOMMENDED ACCURACY IN MEASUREMENTS 1 As discussed in the scales section on equipment NIST recommends an accuracy of 0 0196 or 1 part in 10 000 This is equivalent to 0 1 g per kg for weight or 10 mm 1 cm per 100 meters for length measurements However because of cost and the continued use of older scales the E amp FSS committee recommends a weight tolerance minimum of 0 0396 2 Based on the accuracy for measuring record lengths by steel tape and the impact of temperature plus the recommended procedures for certifying electronic measurements the accuracy varies from 0 0496 to 0 1796 for sector lines in the long throws The E amp FSS Committee recommends a minimum standard of 0 196 or 0 1 mm for every 100 mm in diameter for a shot This means gauges used for implement measurement should be accurate to 1 part in 1000 If properly manufactured the ga
11. harness upper clevis pin 3 Check the maximum length of the weight It must be no more than 406 4 mm from the inside of the longest leg of the grip to the end of the head Note For USATF Masters and WMA competitions the overall maximum length can be 410 0 mm This is true for both the metal weight and the weight bag Make sure the links are straight and not curled Be careful in doing this measurement If you are using the TRACKMASTERUM hammer stand we recommend you use at least a C clamp to hold it to the table surface so it doesn t tip We also recommend a slight alteration to remove the center extension and add a calibration to the upper leg for ease of measurement Indoor weights that fail the maximum length measurement due to stretched nylon straps are a common problem These are corrected by disassembling the center link and twisting one or more straps effectively shortening them Also be aware of synthetic indoor weights that are not round These have been deliberately flattened to ensure they meet the length specification This is not allowed the weight itself must be round and the straps must be shortened to meet the overall length specification Always remember to check the tightness of the center or yoke pin with your fingers regardless if you worked to tighten the straps to make length or not 4 Check the triangular shape of the handle It should be not more than 190 mm along each side inside the handle nor less than 100 mm I
12. in Pacific Association Fi ae fo Se NZ ZAN ro e LN Fig 15 Beijing Hammer Stretcher amp Scale Fig 16 Nordic Hammer Stretcher USATF National Officials Committee Training Monograph Series February 2011 Rev 0 Italian Version at WMA Championships 2007 Polanik Version Figure 17 Hammer Stretchers Figure 18 Weight Length Measurement USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 53 PAGE 54 K C Figure 22 The Weight Figure 19 Types of Weights NcAA Rulebook Figure 21 Italian Shot Hammer amp Weight Rings USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 55 Figure 22 My Javelin Board for All Five Javelin Size in Three Pieces 600 g 800 g Handle Head Length Length Ke _ 809 ff do p je Bef t t t t 150mm Overall Balance 150mm Length Point Min Max L Overall Length B Balance Point P Point Length JAVELIN BOARD Not to Scale Figure 23 My Original Javelin Board for Three Sizes USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 56 Figure 24 Beijing Javelin Board and Templates X Figure 25 Nordic Javelin Balance and Length Measurements in Australia USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 57 Figure 27 Moveable Javelin Bal
13. it will be used Do not rely on the factory adjustment latitude altitude and even the makeup of the earth in your location affect the apparent local gravity For example a newly purchased scale with claimed accuracy of 2 g can easily indicate 10 20 g or more too high at full range This is a result of its factory adjustment in a different part of the world However after adjustment in your locale it should produce results close to its factory specifications Columns 1 and 2 of the following table contain the manufacturer s name and model number for an assortment of commercially available scales The next column is the maximum capacity of the scale The fourth column indicates the smallest measurement increment that can be read The comments column contains any special considerations listed by the manufacturer in the literature The cost column provides typical prices as found on the internet in 2011 The last column shows the theoretical tolerance in terms of the range of the scale that is one part per thousands Ideally a scale listed as 1 10 000 will have one gram of error in 10 kg of total weight see the Notes after the table The last three rows provide the ideal suggested and minimum tolerances for comparison USATF National Officials Committee Training Monograph Series February 2011 Rev 0 Manufacturer Model Capacity Increment Comments Cost tolerance Sartorius CPA34000 34 kg 1g NTEP Class Ill 2650 1 34 000 intern
14. loops These locations will be retaped anyway and this will ensure that any illegally taped weights are eliminated 3 Check both the minimum and maximum length of the hammer The 7 260 kg 6 kg and 12 lb implements must be at least 117 5 cm and not more than 121 5 cm from the inside of the grip to the end of the head IAAF has modified the 5 kg length to 116 5 cm to 120 0 cm For 4 kg 3 kg and 2 kg implements the measurements are 116 cm and 119 5 cm respectively When measuring length make sure the wire is straight but not stretched nor curled The weight of the hammer itself is usually not enough to straighten the wire particularly if the wire has been curled from normal use or for transport Applying additional tension may be necessary Be careful not to apply too much tension so as to stretch the wire the wire loops or handle With a hammer stretcher be careful to make sure the handle and ball are properly placed so neither will come loose as the tension is increased Tighten until the wire is reasonably taut but not enough to bend the handle When taut use the gauge to check the maximum and minimum lengths Be careful in doing this measurement If you are using the TRACKMASTER or Gill hammer stand we recommend you use a C clamp to hold it firmly to the table surface 4 Check the weight This is most easily done by placing the handle on the scale and then putting the head in the handle so it doesn t roll Make sure the wire does n
15. mid point CG to Tail Min 0 7D 0 9D 0 9D Diam 150 mm from Tip Max 0 8D 0 8D 0 8D Diam 150 mm from Tail Min 0 30 0 40 0 8D Diam 125 mm from Tip Max Diam 125 mm from Tail Min Diam of Tail Min 3 5 3 5 5 3 5 Diam of Grip Max D 8 mm D 8 mm D 8 mm Circumference of Grip over Diam Max D 1 in D 1 in Diam at mid point fm front of grip to Tip Diam at mid point fm front of grip to Tail Max Angle of Tip Max 40 40 40 When a rubber tip is used the metal point shall be 70 mm shorter than the normal point and shall end before affixing the rubber tie in a slightly rounded button shape 18 21 mm in diameter for the boy s 800 g and 16 18 mm in diameter for the girl s 600 g The length and center of gravity with the rubber tip in place may be less than the standard javelin with a metal point but will still fall within the nominal specifications See Table 6 and Figures 22 to 30 in Appendix Mini Javelin In 2000 the Youth Committee adopted the 300 gram mini javelin for use with the younger age groups In 2010 the 500 gram mini javelin was redefined and the 600 gram mini javelin was introduced USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 29 Each dimension should be checked Because of the fins finding the center of gravity requires a much higher balance point Most dimensions are easily measured with a 15 or 30 cm 6 12 inch straight edge and the diameter
16. minutes before warm ups or have an event official pick them up If possible always turn over the marked implements to an event official insuring the chain of custody and making sure no implements are lost The following sections detail how to certify each of the implements Because there are subtle differences between the wordings in each rulebook it is always a good idea to review the rulebook the night before the meet This is particularly true for a meet with a different set of rules than have been used recently Use the rulebook as the ultimate authority unless there has been in intervening change The E amp FSS committee keeps implement inspectors apprised USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 19 of changes throughout the year Send an e mail to bobspringer2 comcast net so notification can be done in a timely fashion These sections try to point out the similarities and the differences between the various rulebooks When demonstrating to athletes or coaches how much their implement is light use the following table for coins as an indication Thanks to Shirley Crowe and Emmitt Griggs Coin weight weight kg g Dime 0 0020 2 Penny 0 0025 2 5 Nickel 0 0050 5 Quarter 0 0055 5 5 SHOT 1 Note internal movement by sound or feel is no longer a reason to impound a shot Make sure that the weight stamp or the plug cannot be used as a finger hold Some scr
17. must be very accurate to measure the edge thickness The discus should be at least 6 mm thick at 12 mm from the periphery The easiest and most accurate way to measure this parameter is using a gauge The edge of a discus is a semicircle with a 12 mm minimum and a 13 mm maximum in diameter Thus one gauge should be a 12 mm diameter semicircle and the other 13 mm If the discus edge fits the 12 mm gauge without rattling the implement meets the minimum thickness If the semicircle doesn t fit into the 13mm gauge then the discus is too thick This is particularly true for the Denfi discuses 4 Check the taper of the sides by laying a straight edge from the center plates to the rim on both sides It should be in contact along the contour to the metal edge 5 If the implement passes mark it and place it with the other approved implements Mark the top of the discus rather than the bottom The two sides can be distinguished from one another the label is placed on top while the scratches are found on the bottom If the discus does not pass note the reason for failure as listed in Section 11 of the general procedure section 6 If the discus rattles then the plate is loose or something is in the void space If the surfaces are tight against the rim or the discus is too thick disassemble the discus with an Allen USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 22 wrench screw or Phillips screwdriver and c
18. pan In general place the weights and the implements as near to the center of the pan as possible see also discussion of tolerance accuracy under the equipment section on scales 9 Continue on with the other implement specific tests 10 If the implement passes all the tests then mark it Label it in a place where the marking is less likely to come off like at the weight mark the hex screw near the swivel or just in front of the grip Some inspectors mark javelins on the tip but I find it can come off more easily there Do not put the mark behind the grip where the javelin thrower may grip the javelin Some use symbols some use lines some use initials and even dates Make sure the mark is dry and then place it with the other approved implements for the day This is the recommended procedure Short on help Then return it to the athlete to transport to the competition site 11 If you are impounding an implement let the athlete know the reason and the time to pick up the implement after the event Record the reasons for impounding any implement in your notebook on the check in sheet and place a piece of tape or label on the implement This will save time if there is a protest or the coach or referee becomes involved This way the implement in question can be located quickly and the reason for disqualification easily given 12 If possible take the implements out to the competition area either 35 minutes before the scheduled start or ten
19. templates When you first get a kit make sure that all implement measuring devices are measured and marked correctly The scale should be calibrated and adjusted if required immediately after USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 5 purchase since its factory calibration will probably not be valid in your geographical area Each year check that the gauges have not been damaged through use or enlarged Standards if you own any should not be used for routine checks Any standard must be handled with care and protected so it is not damaged Equipment templates should be checked periodically with calipers Never force implements into the templates as you will wear the sides making them less accurate You will find some of your templates will undersized and some oversized for the measurement they are intended Take this into account and allow for it if you have a close measurement Your local scale store accredited calibration laboratory like Davis Inotek or Simco county Weights and Measures unit or state Department of Agriculture may be able to do it Any standard must be handled with care and protected so it is not damaged The following is a list of needed equipment for setting up your Weigh In room Recommended Personal Equipment Steel Measuring Tapes 3 m tape for implement measuring Center point tape for manual javelin profile measurement Marking Pens It is preferable to u
20. 00 g The following table is intended as a starting point for selecting a scale Select the maximum weight implement to be weighed and find the ideal and suggested tolerances These can be compared against the Scale Comparison table to get an idea of what scales may be of interest Scale Tolerances for Implements Based on full use of Class F Standards Implement Weight Tolerance Ideal Suggested Implement Name Ib kg g 1 10 000 1 3 000 9 9 56 25 40 25401 2 54 8 47 56 Ib Weight 20 20000 2 00 6 67 20 kg Weight 35 15 88 15876 1 59 5 29 35 Ib Weight 25 11 34 11340 1 13 3 78 25 Ib Weight 20 9 07 9072 0 91 3 02 20 Ib Weight 16 7 26 7260 0 73 2 42 16 Ib Shot Hammer Weight 6 6000 0 60 2 00 6 kg Shot Hammer 12 5 44 5443 0 54 1 81 12 Ib Shot Hammer Weight One final consideration regarding the selection of a scale One must consider how much accuracy is enough How much accuracy is not enough How much is too accurate i e too expensive Consider the following two cases USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 13 Scale 1 has an actual accuracy of 10 grams 10 g This means depending on its adjustment it could show a true 4 000 kg mass standard to weigh anywhere between 3 990 kg and 4 010 kg that is anywhere between 10 grams low to 10 grams high Since the 10 g performance is within the manufacturer s stated
21. DTH OF GRIP MIN MM 150 150 150 140 140 135 130 MAX MM 160 160 160 150 150 145 140 OVER MAX SHAFT DIAM GRIP MAX MM 8 8 8 8 8 8 8 CIRC OVER SHAFT GRIP INCH 1 1 DIAMETER VARIATION MAX lt 2 lt 2 lt 2 lt 2 lt 2 lt 2 lt 2 DIAM 125 MM FROM TIP MAX lt 80 DIAM 150 MM FROM TIP 8 MAX 96 lt 80 lt 80 lt 80 lt 80 lt 80 lt 80 DIAM BEHIND HEAD DIAM OFHEAD MMMAX lt 25 25 25 lt 25 lt 25 lt 25 lt 25 DIAM MIDPOINT FROM CG TO a MAX lt 90 lt 90 lt 90 lt 90 lt 90 lt 90 lt 90 DIAM R MIDPOINT FROM CG TO TAIL MIN gt 90 gt 90 gt 90 gt 90 gt 90 gt 90 gt 90 DIAM REAR AT 125 MM MIN gt 40 DIAM REAR AT 150 MM MIN gt 40 gt 40 gt 40 gt 40 gt 40 gt 40 DIAM MIN gt 3 5 gt 3 5 gt 3 5 gt 3 5 gt 3 5 gt 3 5 gt 3 5 TIP ANGLE MAXDEG lt 40 lt 40 lt 40 lt 40 40 lt 40 NOTE CONVERSIONS 2 20462 Ib per kg 16 oz per Ib 453 5924 g per Ib 28 34953 g per oz Footnote a The Trackmaster Gill gauge should pass beyond the mark since it is a than or equal to this measurement shall not exceed dimension i e less b The Trackmaster Gill gauge should not pass beyond the mark since it is a shall exceed dimension i e greater than or equal to this measurement C If use a rubber tip then there are
22. H MIN mm 1175 1175 1175 1165 1160 1160 1160 MAX mm 1215 1215 1215 1200 1195 1195 1195 WIRE DIAMETER MIN mm 3 0 3 0 3 0 3 0 3 0 3 0 3 0 CENTER OF GRAVITY off center MAX mm 6 6 6 6 6 6 6 INTERNAL MOVEMENT NONE NONE NONE NONE NONE NONE NONE HANDLE DIMENSIONS MAX mm 110L 110L 110L 110L 110L 110L 110L LOOP DIAMETER USATF only MAX mm 19 5 19 5 19 5 19 5 19 5 19 5 19 5 NOTE 2 kg hammer spec and W75 group effective 5 1 10 Bottom of grip to bottom of loop USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 38 f TABLE 2 Nx oy A THROWING IMPLEMENT SPECIFICATIONS SUMMARY TRACKAFIELD WEIGHT amp SUPERWEIGHT WEIGHT and SUPERWEIGHT USATF RULE 201 UNITS IMPLEMENT NAME 56lb 20kg 35lb 25lb 2016 16 Ib 12 Ib 4 kg AGE GROUP OPEN weight MEN WOMEN OPEN superweight MEN WOMEN MASTERS WEIGHT M30 M45 50 55 M60 M65 M70 M75 80 W30 W45 W50 W55 W60 W70 W75 SUPERWEIGHT M30 M55 60 65 70 75 M80 W30 W45 W50 W55 W60 W70 W75 WEIGHT NOM Ib 56 00 44 09 35 00 25 00 20 00 16 00 12 00 8 82 NOM kg 2540 20 00 15 88 11 34 9 08 7 26 5 45 4 00 MIN record kg 25 400 20 000 15 880 11 340 9 080 7 260 5 450 4 000 RANGE FOR SUPPLY MIN kg 25 405 20 005 15 885 11 345 9 085 7 265 5 455 4 005 MAX kg 25 425 20 025 15 905 11 365 9 105 7 285 5 475 4 025 Overall length NCAA
23. IMPLEMENT INSPECTOR S HANDBOOK V USA TRACK amp FIELD PREPARED BY THE EQUIPMENT AND FACILITIES SPECIFICATIONS SUBCOMMITTEE OF THE NATIONAL OFFICIALS COMMITTEE OF USA TRACK AND FIELD Authors and Editors George Kleeman Ivars Ikstrums February 2011 0 PRICE 5 00 This manual is part of the USATF National Officials Monograph Series on how to officiate Each monograph covers the various techniques for each officiating assignment These monographs are intended for more in depth understanding of each job They are intended for both the novice and seasoned official They cover the real details of the job and how it should be preformed They summarize various techniques to accomplish the job These monographs can be copied and used for officials training only USATF National Officials Committee Training Monograph Series INDEX INDEX INTRODUCTION HOW TO BECOME A CERTIFIED OFFICIAL PREMEET REQUIREMENTS Facilities Equipment Recommended Personal Equipment Equipment provided by the meet site Scales and scale comparison summary DAY OF THE MEET CHECKING OF EQUIPMENT Recommended Accuracy in Measurements General Procedure for All Implements Shot Discus Hammer Weight Ultraweight Javelin Mini Javelin Use of the TRACKMASTER V or other Certification Kits Use of other Methods Important W amp M Differences between Various Rule Books and Divisions APPENDIX INDEX Dedication PAGE 2 RWW PD This manual is dedic
24. Rev 0 PAGE 66 VS Athletic Carts Figure 39 Implement Carts USATF National Officials Committee Training Monograph Series February 2011 Rev 0 See Table 1 column 2 PAGE 67 Table 1 ring dimensions Inner dia mm Outer dia inch Shot Hammer amp Weight Measuring Rings Notes 3 4 5 Cn l XX mm Ring Gauge v o L 2 see Table 1 column 1 tolerance 0 2 Notes 1 2 Notes 1 Use 0 078 SST sheet or similar 2 Inner amp outer diameters to be approx concentric but no req d tolerance 3 Etched text no specified font size 4 XX value is from Table 1 column 1 entry 5 Put space between XX value and mm per ISO 31 0 LEM p poc a a Figure 40 Ring Gauge Templates USATF National Officials Committee Training Monograph Series February 2011 Rev 0 Notes 1 2 Critical dimensions in red 40 2 mm 3 Non critical dimensions in black 4 Etchings are in green 5 Place a space between all etched numbers PAGE 68 Javelin Tip amp Taper Length Gauge A I 1 M 96 34 80 Rubber Tip Length Javelin Taper Measurement Gauge from Tip amp Tail Javelin Tail Diameter 3 5 mm min 4 ge Javelin Tip Length Gauge Use 0 078 SST sheet or similar MN and their units 3 5 mm Detail Figure 41 Javelin Head Template USATF National Officials Committee
25. TRACKMASTER V use the following weights Men s 1 and 4 Women s 2 and Junior Men s 3 The Junior Men s discus is 1 75 kg The Masters have a 1 5 kg discus 3 Gauge the diameter 219 221 mm for men and 180 182 mm for women see Rule 189 or the appendix for others center diameter 50 57 mm and center 44 46 mm for men and 37 39 mm for women and the minimum edge 12 mm thickness Check at least three points for each dimension to insure adequate roundness and thickness Note the minimum thickness of the edge should be measured at a point 6 mm from the edge The center plate of the discus if there is one should be flush with the mating surface For dimensions of other discuses see the Appendix Note that the flat surfaces must meet only the dimension requirement and do not necessarily have to made of metal Indeed some discuses have metal plates smaller than the whole flat surface Early Denfi discuses 1995 Both are OK In measuring the edge thickness of the discus place the measuring tool perpendicular to the sides The first edge thickness measuring devices included in the 1997 and early 1998 Trackmaster kits from Daktronics were themselves too thin If not held properly these early gauges will indicate a valid thickness when in actuality the discus edge thickness is too thin This gauge should itself be a minimum 1 4 thick to limit this problem Below this minimum it is difficult to place the gauge perpendicular to the sides This gauge
26. Training Monograph Series February 2011 Rev 0 i The 40 notch is 10 mm deep PAGE 69 Bejing 2008 Eugene Figure 42 Retrieval Vehicles USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 70 Figure 43 Remote site scale setup in Pacific Northwest Doubly redundant scales deployed at throwing location Sartorius CPA340018 scale on left powered by factory optional battery pack hidden behind scale and an older model Trackmaster scale RLWS load cell connected to Mettler Toledo Panther terminal powered by a deep cycle battery via a static inverter Figure 44 Inland Northwest Ohaus RD30LS Covers the full range of weighing including Superweight USATF National Officials Committee Training Monograph Series February 2011 Rev 0
27. al cal Ohaus RD6RS NTEP Class III 696 1 30 000 Ohaus RD30LS NTEP Class III 915 1 30 000 Ohaus EB6 356 1 30 000 Ohaus EB15 356 1 30 000 Ohaus EB30 356 1 30 000 Ohaus RD12LS NTEP Class III 803 1 24 000 Nagata c o Gill FAT 06 20 kg 1g 863 1 20 000 Athletics Sartorius MW1P1U NTEP Class Ill 832 1 15 000 30ED L AND EK 12ki 400 1 12 000 Ishida QB 12KE 999 1 12 000 Acculab SVI 10A 210 1 10 000 Acculab SVI 20B 210 1 10 000 new Trackmaster 1 10 000 Doran 7025XL NTEP Class III 972 1 5 000 Doran 7050XL 12 NTEP Class 111 1062 1 4 500 Pennsylvania 7000 495 1 4 500 Pennsylvania 7000 495 1 4 500 Jadever c o Gill NWTC 15K 15 kg 5g 504 1 3 000 Athletics Yamato Accuweigh PPC 200W 20 370 1 2 500 old Trackmaster 1 2 000 Yamato Accuweigh PPC 200 370 1 1 000 bathroom 1 300 a d IDEAL a gt 1 10 000 Suggested 1 3 000 Minimum o 1 1 000 SCALE COMPARISON SUMMARY PAGE 11 Note 1 The cost and tolerances of the scales roughly track each other This is another case of you get what you pay for Note 2 Some of the more expensive scales have optional battery packs available Some of the less expensive scales have integral battery compartments Note 3 The numbers in the increment column need to be interpreted carefully Increment means the smallest granularity which the scale will display This is not always the same as accuracy An NTEP scale s accura
28. alternate specifications see the javelin section or Rule 6 5 2 in High School Rules This javelin should meet all IAAF specs Not all are shown in the HS rulebook but they do apply When using a rubber tip or soft plastic the metal point shall end before affixing the rubber tip in a slightly rounded button shape 18 21 mm in diameter for the boy s javelin and 16 18 mm in diameter for girl s javelin Overall length of rubber tip 35 77 mm Diameter at front of the tip is 14 35 mm and thickness at front of tip is 5 mm minimum February 2011 Rev 0 USATF National Officials Committee Training Monograph Series PAGE 43 M TABLE 7 NX x THROWING IMPLEMENT SPECIFICATIONS SUMMARY USA MINI JAVELIN TRACK amp FIELD In 2000 the Youth Committee adopted the 300 gram mini javelin for use with the younger age groups In 2010 the 500 gram mini javelin was redefined and the 600 gram mini javelin was introduced The shaft grip and fins will be made out of plastic the tip shall be made of soft rubber with a blunt rounded tip The fins must be smooth and shall be parallel to the centerline of the shaft MINI JAVELIN SPECIFICATIONS Weight minimum g 300 amp 400 500 amp 600 Overall Length min mm 685 1100 Overall Length max mm 705 1140 Length of Head min mm 84 85 Length of Head max mm 94 95 Tip Diameter at largest point min mm 37 35 Tip Diame
29. ance and Length Measurement used in lowa Figure 28 Head Measurement for Javelin lowa USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 58 Figure 29 Javelin Diameter Measurement used in Italy Figure 30 Javelin Contour Gauge used in So California USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 59 Figure 31 Gill Javelin Overall Length Measuring Device Figure 32 Mini Javelin USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 60 Figure 33 Original Trackmaster Case USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 61 Figure 34 Trackmaster Kit Laid out USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 62 IAAF WMA NCAA NFHS Implement Certification Kit 93080 gt Ke Git 2 LJ PN em bx With the Gill Implement Certification Kit officials can be assured that each implement meets specifications This self contained unit including scale checks the specifications for the discus javelin shot put and hammer The gauges and labels are laser cut stainless steel for extreme accuracy and permanency Kit Includes 85 mm and 120 mm ring gauges 1k 1 5k and 2k discus gauges 400 g 500 g 600 g 700 g and 800 g javelin grip and tip gauges Jave
30. antam group is effective 2011 NFHS high school Rule 6 5 2 IAAF Rules 188 5 221 6 WMA Appendix A Rules 2 amp 3 USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 41 TABLE 5 THROWING IMPLEMENT SPECIFICATIONS SUMMARY DISCUS DISCUS UNITS 2 kg 1 75 kg 1 6 kg 1 5 kg 1 0 kg 0 75 kg Age group USATF IAAF NCAA Open Men Women USATF Masters Men M30 M45 M50 M55 M60 USATF Masters Women W30 W70 W75 USATF Youth Boys young men Youth USATF Youth Boys con t Intermediate Midget USATF Youth Girls all High school boys girls IAAF Youth Boys Junior Youth IAAF Youth Girls all WMA Men M35 M45 M50 M55 M60 WMA Women W35 W70 W75 Weight Nom Ib 4 41 3 86 3 53 3 31 2 20 1 65 Nom kg 2 00 1 75 1 60 1 50 1 00 0 75 Min record 2 000 1 750 1 600 1 500 1 000 0 750 Range for supply Min kg 2 005 1 755 1 605 1 505 1 005 0 755 Max kg 2 025 1 775 1 625 1 525 1 025 0 775 Diameter overall Min mm 219 210 209 200 180 166 Max mm 221 212 211 202 182 169 Diameter center plate Min mm 50 50 50 50 50 50 Max mm 57 57 57 57 57 57 Thickness at center plate Min mm 44 41 40 38 37 33 Max mm 46 43 42 40 39 37 Thickness rim 6 mm in mm 13 13 13 13 13 13 Min mm 12 12 12 12 12 10 Sources USATF Rules 189 3 301 320 2 332 3 g NCAA Ru
31. aph Series February 2011 Rev 0 PAGE 44 TABLE 9 USA THROWING IMPLEMENT SPECIFICATIONS SUMMARY USATF MASTERS IMPLEMENTS Men 65 69 70 74 en 80 84 90 94 95 994 Shot 7 260 kg Event Age 30 34 35 39 4 50 54 60 64 Women Event Age 30 34 35 39 E 4649 50 54 55 59 65 69 70 74 75 79 85 89 90 94 95 99 Shot 4 kg WU 2 kg Discus 1 kg 0 750 kg Hammer 4 kg 3 kg 2 kg Weight 20 Ib 16 lb 12 lb 4kg Superweight 35 Ib 251 20 Ib 16 Ib Ultraweight 20 kg 56 Ib 98 Ib 351p P9 35 Ib 20 kg 20 Ib 25 Ib 35 Ib Per 2011 USATF Rules 332 3 0 amp 203 3 USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 46 10 THROWING IMPLEMENT SPECIFICATIONS SUMMARY USA WMA MASTERS IMPLEMENTS TRACK amp FIELD Men Event Age 35 39 4044 45 49 50 54 5559 60 64 65 69 7074 75 79 80 84 85 89 90 94 95 09 Shot 7 260 kg 6 kg 5 kg Discus 1 5 kg Javelin 800 g 700 g 600 g Hammer 7 260 kg 6 kg 5 kg Weight 25 Ib 20 Ib Women Event Age 35 39 4044 45 49 50 54 55 59 60 64 65 69 70 74 175 79 80 84 85 89 90 94 95 99 Shot 4 kg 3 kg 2 kg Javelin 600 g 500 g 400 g Hammer 3 kg 2 kg Weight 20 Ib 16 Ib 12 Ib 4 kg Per 2010 WMA rules Appendix A Section 2 USATF National Officials Committee Training Monograph Series February 2011 Rev 0 W THROWING x Y USA TRACK amp FIELD Event Div
32. at meets for the next few years This table will help you verify what they are All the dimensions shown are in millimeters Note Although there have been several changes to the Masters 400 g javelin over the last ten years to make it more aerodynamic and easier to manufacture there has not been the formal demarcation date for the specs changes which occurred with the open 800 and 600 g javelins USATF National Officials Committee Training Monograph Series February 2011 Rev 0 HISTORICAL JAVELIN SPECIFICATIONS PAGE 28 Measurement Group High IAAF IAAF High IAAF School Pre 1992 1999 School Pre 1986 Pre 2002 Pre 2002 Users Girls Open Open Boys Open Weight g 600 600 600 800 800 Length of Javelin Min 2200 2200 2200 2600 2600 Max 2300 2300 2300 2700 2700 Length of Head Min 250 250 250 250 250 Max 350 330 330 350 330 Length of Rubber Tip Min 35 35 Max 77 77 Diam of Front of Rubber Tip Min 14 14 Max 35 35 Thickness at Front of Rubber Tip Min 5 5 Length of Grip Min 140 140 140 150 150 Max 150 150 150 160 160 Length from Tip to Min 800 800 800 900 900 Max 950 950 950 1100 1100 Diameter of Shaft D Min 20 20 20 25 29 Max 25 25 25 30 30 Diam Reduction Front to Back of Grip Max 0 25 0 25 0 25 Diam Reduction behind Head Max 2 5 2 5 2 5 Diam at mid point CG to Tip Max 0 9D 0 9D 0 9D Diam at
33. ated to Dr James Sabatelle of the Metropolitan Association Carl Strombom and Norm Morrison of the Pacific Association and Red Meade of the Southern California Association Jim and Carl were original members of the committee and Norm was one of the original W amp M people along with Red Meade on the West Coast Red was the original manufacturer of the Trackmaster system Jim was a contributor to the original version of this manual All were dedicated to helping improve the proficiency of the Implement Inspector in the United States USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 3 INTRODUCTION This manual was prepared for Implement Inspectors by the Equipment and Facilities Specifications Subcommittee of the Officials Committee of USA Track and Field for the use education and training of Inspectors of Implements As such it is copyrighted for the use of USATF members It is predominately slated to the use of the Trackmaster and similar measuring equipment although the techniques and procedures are general Additional copies are available by downloading them directly from http www usatf org groups officials resources weights and measures Comments recommendations are welcome and can be sent to Bob Springer 10063 Arrowsmith Ave S Seattle WA 98178 or via e mail at bobspringer2 comcast net It is the first known publication of how to do the job of an Implement Inspector In addition
34. avelin bench is 44 high all others are 36 high Weighing table must hold 200 Ib without deflecting others must be sturdy not flimsy fold up plastic tables Benches have space underneath for equipment storage The check in bench is deliberately narrower than the others Two AC power receptacles required at each wall bench one receptacle OK at weighing bench route power under floor rather than a ceiling drop Lighting is required above each work bench Secondary hammer stretcher is for informal length checks at the request of the athlete The basic concept is a Incoming implements go to the center table for weighing b Then they immediately go to their respective benches for further inspection and repair if necessary C The exception to b is the shot it can be checked with ring gauges on the scale it only goes to the discus table if it requires weight addition or surface filing d The javelin bench location is deliberate this minimizes the distance traveled by a javelin from receipt to storage Figure 2 W amp M Room Layout Recommended con t USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 35 n s 2 t 1 1 Figure 4 Layout at Des Moines NCAA Division USATF National Officials Committee Training Monograph Series February 2011 Rev 0 IMPLEMENT CHECK IN STATUS SHEET PAGE 36 USA IMPLEMENT TYPE MEET EVENT AGE GROUP BY inspector SEX
35. cause the discus is held at the rim allow small dents and cracks on the side of the discus because these flaws don t aid in holding the discus unless its structural integrity is compromised NOTE 1 In 1993 USATF and IAAF rule changes limited the degree of roughness allowable on the edge of the discus Manufactured grooves in the metal rim or elsewhere are not allowed The NCAA and NFHS also require a smooth rim USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 21 2 The PACER Gold Plus was declared illegal for USATF and IAAF competition because it was weighted more on side than the other Although the NCAA did not declare it illegal their rules read the same as the USATF and IAAF on discus conformity which in my opinion makes it illegal The high school rule is less clear and therefore is probably legal since there is no mention that both sides be symmetrical This discus was weighted on one side more than the other as part of the manufacturing process 2 Weigh the discus The Men s discus is 2 kg while the women s is 1 kg The high school boy s discus is 1 6 kg Masters women have added a 750 g discus However be aware of this nuance There are commercially available 750 g discuses which have the same physical dimensions as the 1 kg discus these are NOT legal per WMA or USATF the legal 750 g discus has unique diameter and thickness specs See Appendix for other weights With the older version
36. certified by your local or state authority or an accredited calibration lab is acceptable The three types of scales are electronic balance and lever or beam Be aware that there have been two different types of the beam scales used in the Trackmaster kits over the years The older versions of the TRACKMASTER V made by Red Meade or Jack Balko used a beam scale Red Meade manufactured units with serial numbers below 180 Make sure to know the steps in calibrating the scale Normally put the calibration weights on and then set the balance point To pass an implement must be at or above the balance point The new version by Daktronics uses an electronic scale Because even these scales can t be exact err on being fair to the athlete If an implement fails on one scale but passes on another let it go unless there is a significant difference in calibration or tolerance between the two scales If it is that close to weight it really will not have any impact on the competition or a record See previous section on scales for discussion of accuracy and tolerance NOTE When using any scale treat it carefully When removing implements or weights from the scale do it gently to avoid damaging the knife edges or bearings This is particularly true for a single pan balance such as that used in the TRACKMASTER V Hold the bar when USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 18 removing weights or implemen
37. cy should approach its minimum increment A non NTEP scale s actual accuracy may be two or three times its minimum increment Therefore the tolerance column is a guide only For inspectors wishing to check their own scales the following table is provided with mass standards that span the range of the throwing implements Ideally the heaviest standard should approximately equal the maximum capacity of the scale and other standards if used should be selected evenly among the implements weights of interest Mass standards are USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 12 available from Rice Lake Weighing Systems Henry Troemner LLC and Mettler Toledo among others Class F Tolerances for Field Standard Weights NIST Handbook 105 1 NIST Class F Standard Standard Implement weights Ib kg grams NS lin hie ranae 66 1 30 30 000 3 0 56 Ib 50 22 7 22 680 2 3 56 Ib 44 1 20 20 000 2 0 20 kg 35 Ib 30 13 6 13 608 1 4 35 Ib 25 11 3 11 340 1 1 25 Ib 22 0 10 10 000 1 0 25 Ib 20 Ib 20 9 07 9 072 0 91 20 Ib 16 Ib 11 0 5 5 000 0 50 6 kg 5 kg 4 kg 12 Ib 10 4 54 4 536 0 45 12 Ib 5 kg 4 kg 8 Ib 6 6 3 3 000 0 300 3 kg 6 Ib 5 2 27 2 268 0 227 6 Ib 2 kg 44 2 2 000 0 200 2 kg 1 6 kg 1 5 kg 3 1 36 1 361 0 136 1 6 kg 1 5 kg 2 2 1 1 000 0 100 1 kg 2 0 907 907 0 091 800 g 700g 600 g 1 0 454 454 0 070 600 g 500 g 4
38. d Meade original Inventor of Southern California until the mid 80 s and then Jack Benko out of Texas who was the inventor of the Accutrack timing system until the late 90 s Mark I for Men Mark II for Women Mark 11 for Men Women and Junior and Mark IV for High School Now there are just three High School with and without Javelin and NCAA IAAF amp WMA Gill began sales in 2000 UCS started in 2007 Instructions come with each system but the following is a more detailed description of the tests and how they should be performed and interpreted Some of the most common complaints about this equipment are Initial cost is high 1250 to 3700 depending on implements to be measured Cost of maintenance is high Old models have not all been updated with improvements Instructions are not current with rule changes Owners neglect leads to inaccurate measurements a Equipment gets wet and isn t properly dried and cleaned b Instructions get lost c Equipment gets lost d Equipment gets damaged e f Scale not accurate or impossible to calibrate Every scale responds differently with different accuracy g Scale cannot be calibrated for the heavy end of weights USE OF OTHER METHODS If you know of other methods that should be discussed please pass them along to Bob Springer 10063 Arrowsmith Ave S Seattle WA 98178 or via e mail at bobspringer2 comcast net USATF National Officials Committee Train
39. e 400 g or 600 g and 8 kg respectively Layout your javelin measuring tape Try to have separate areas for each implement and its measurement If there is more than one person working make sure there is enough room to move around particularly with the javelin It becomes more difficult if the ceiling is not at least 9 feet to allow the javelin to be turned vertically 6 Set up an implement check in sheet Have room to record the name of the individual school and manufacturer for all implements measured and or impounded The Equipment and Facilities Specification Sub committee E amp FSS would like information on impounded new implements in order to work with the manufacturers on improving equipment and gathering statistics on common explanations for implement impoundment This information will help us suggest to the manufacturers improved specifications for the various implements as well as suggesting changes in the order of doing the measurements Send the information to the chair Bob Springer 10063 Arrowsmith Ave S Seattle WA 98178 or via e mail at bobspringer2 comcast net 7 Prepare to make the first measurement at least an hour to an hour and a half before the first throwing event If the inspector is to bring the implements to the competition venue then USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 16 take them out 10 minutes prior to the start of the warm up period for the scheduled
40. e 4 Discus Table 5 Javelin Table 6 Mini Javelin Table 7 Implement Specifications by Age Group IAAF Table 8 USATF Masters Table 9 WMA Table 10 USATF Youth Table 11 Figures 5 through 41 Scales Fig 5 8 Shot Hammer amp Javelin Gauges Fig 9 Discus Fig 10 13 Hammer Fig 14 17 Weight Fig 18 21 Javelin Fig 22 32 Old Trackmaster Fig 33 34 Gill Measuring Kit Fig 35 Daktronics Trackmaster Fig 36 37 UCS Measuring Kit Fig 38 Implement Carts Fig 39 Implement Templates Fig 40 41 Retrieval Vehicles Fig 42 Other Scales Fig 43 44 USATF National Officials Committee Training Monograph Series February 2011 Rev 0 Page 31 32 33 35 36 37 37 39 40 41 42 43 44 PAGE 31 PAGE 32 W amp M Room 20 x20 sign in amp sign out bench spare bench D S g o 2 D o 2 B o go 8 A a MEI EL c incoming implement storage o Oo o 5 o E E 2 hammer inspection DQ bench DQ implement 3 x 8 implement bin bin Figure 1 W amp M Room Layout Minimum Notes 1 This is a recommendation for adapting an existing space for W amp M purposes 2 Recommended dimensions are 20 x 20 Spaces as small as 10 x 10 are possible but are cramped Ceiling height is 12 ft minimum to accommodate javelin handling Javelin bench is 44 high all others are 36 high Certified implements are s
41. elin 800 g 600 g Discus 2 kg 1 kg Weight 56 Ib 35 Ib 20 Ib Junior Men Junior Women Shot and Hammer 6 kg 4 kg Javelin 800 g 600 g Discus 1 75 kg 1 kg Collegiate Men Collegiate Women Shot and Hammer 7 26 kg 4 kg Javelin 800 kg 600 g Discus 2 kg 1 kg Weight 35 Ib 20 Ib Men s Masters Women s Masters Hammer 3 kg 4 kg 5 kg 6 kg 7 26 kg 2 kg 3 kg 4 kg Shot 3 kg 4 kg 5 kg 6 kg 7 26 kg 2 kg 3 kg 4 kg Javelin 400 g 500 g 600 g 700 g 800g 400 g 500 g 600 g USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 14 Discus 1 kg 1 5 kg 2 kg 0 75 kg 1 kg Weight 12 Ib 16 Ib 20 Ib 25 Ib 35 Ib 4 kg 12 Ib 16 Ib 20 Ib Superweight 25 Ib 35 Ib 20 kg 56 Ib 16 Ib 20 Ib 25 Ib 35 Ib High School Boys High School Girls Shot 12 Ib 4 kg Javelin 800 g 600 g Discus 1 6 kg 1 kg Jr High School Boys Jr High School Girls Shot 8 Ib 4 kg 6 Ib Youth Boys Youth Girls Shot 2 kg 6 Ib 4 kg 12 Ib 2 kg 6 Ib 4 kg Javelin 300 g 600 g 800 g 300 g 600 g Discus 1 kg 1 6 kg 1 kg IAAF Boys IAAF Girls Shot and Hammer 5 kg 4 kg Javelin 700 g 600 g Discus 1 5 kg 1 kg Athletics for the Disabled Cerebral Palsy Javelin Discus Shot 600 g 800 g 1 kg 1 5 kg 4 Ib 6 Ib 3 kg 4 kg 5 kg Wheelchair 600 g 800 g 1 kg 1 5 kg 2 kg 3 kg 4 kg 5 kg 4 Ib 6 Ib 8 Ib Blind 400 g 600 g 800 g 1kg 1 5kg 2 0 kg 3 kg 4 kg 5 kg 7 26 kg Ambulatory 600 g 800 g 1 kg 1 5 kg 4 kg
42. er age group or flight In addition you will need at least one and possibly two boxes for impounded implements of all types Very robust dairy crates are available from http www containerstore com Also steel ammo crates are available from military surplus stores Soft drink plastic trays work well for storing javelins lying down Signs for Location of Implement Inspection Room Tool bag for repairing implements coarse and fine files for deburring a discus rim or a shot adjustable pliers needle nose pliers Vise Grips and adjustable wrenches for removing installing hammer wires disassembling reassembling indoor weights and bending flattening discus hub plates adjustable spanner wrenches of several sizes to remove replace the plugs on shots and hammers also will need small hex keys for the set screw see next item Some snap ring pliers are robust enough to use for this purpose such as those from Knipex Several sizes of slotted screw drivers Phillips drivers thru 4 and hex wrenches English amp metric to disassemble a discus and some indoor weights Fold up sets offer the best range of sizes for the cost Two of each set is best as some discus hubs freeze up over time and require the same size tool on both sides to break the fasteners free of the hub The 4 Phillips is a common size for discus fasteners but is not typically found in fold up tool sets a good alternative is a 3 8 drive 4 Phillips bit with a 3 8
43. es require 10 15 minutes time to warm up Sensitive scales may require 20 30 minutes of warm up time 4 When placing an implement on an electronic scale place it in the center of the pan Most scales will display measurement error if the load is off center 5 Lower the implement on the scale don t drop it 6 A scale should be calibrated by an accredited organization once a year or more often if experience indicates the scale will drift during that period A scale should be calibrated prior to any big deal meet A scale should be calibrated whenever it has been accidentally dropped or an implement has been dropped on the scale 7 When using a double pan balance place the weights on the left and implements on the right Test this by moving the ounce slide to the 1 ounce position and see which way the balance moves i e it takes one ounce of weight on the side containing the implements to rebalance the scale to zero Note some scales have a plus and minus designation to indicate overweight and underweight respectively The ideal tolerance of the weighing scale is one part in 10 000 100 mg or 0 1 g per one kilogram or better This meets the National Institute of Standards and Technology Class Field Standards for weights NIST Class F See tables below for the full spectrum of weights of interest for field events implements Note Throughout this manual the terms tolerance and accuracy are used interchangeably although scientifically th
44. ese terms have slightly different meanings Also most scales actual accuracy is not equal to their minimum resolution However a tolerance of one part in 10 000 is quite expensive usually costing in excess of 1000 for such an electronic scale USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 10 If a scale of NIST Class F tolerance is too expensive a double pan balance or electronic scale capable of measuring to at least one part in 3 000 is preferred One in 3 000 means the scale s tolerance is 1 3000 of the range of the scale For example a 1 3 000 scale which has a 15 kg weighing range would have a claimed accuracy of 5 grams But the use of any scale is better than the use of none For example the older 5 units have a tolerance of approximately one part in 2 000 which was the previous standard The following tables may be of use as you look for a scale There is no intent to endorse any of the scales shown only to show the relative cost in 2011 for the various tolerances Note the wider the range desired the lower the relative tolerance Pay attention to both the capacity and increment data they are available in different combinations The best combination is a large range with a small increment which costs the most Any newly purchased scale particularly a sensitive one should be calibrated and adjusted if required in the general geographic area of where
45. ew the plug in beyond being even with the surface This was an emphasis point the 1998 HS rules If the shot has a removable plug for weight adjustment either 1 seal it with bath tub sealer or Elmer s glue if it appears loose to prevent tampering or 2 make a mark across one side of the plug to indicate the location of the plug when it was checked Elmer s glue can be bought in colors so it can t be easily replaced but the use of glue has the disadvantage that it takes longer to dry Unless someone has recently opened it most plugs are hard to remove A mark across the plug is often adequate 2 The shot should be smooth In fact the IAAF and USATF require a maximum roughness of N7 Check for finger holds cracks or dents Look for out of roundness by sight or feel It should be essentially spherical with no significant flat spots that might help gripping Assume it is spherical if the shot passes the diameter in step 4 using a minimum of three out of four planes including the plane containing the flat spot If there is a significant flat spot i e a several millimeter gap between the ball and gauge then impound it Some practice shots and overweight shots turn up at meets These shots are usually cast iron and have such a large imprint of the weight These are legal If using this implement gives a thrower an advantage or compromises the safety of the event then impound the implement The shot may be rolled to check if the center of gravity
46. f a filling is used it must be inserted in such a manner that it is immovable and the center of gravity shall be not more than 6 mm from the center of the sphere This can be checked when the head is not in a bag do it in a manner similar to the hammer using a 12 mm diameter sharp edge orifice For balls in a bag the manufacture will specify that it meets the requirement since no measurement can be easily done Rule change 2009 in Rule 195 4 8 If the implement passes then mark it by painting or taping both the loops at the connection points and the handle so that neither the handle nor the connectors can be changed See Table 2 and Figures 18 to 21 in the Appendix ULTRAWEIGHT The ultraweight pentathlon was formally accepted in the USATF rules book as a Masters event in 2011 It uses implements weighing between 20 Ib and 300 Ib depending on the age and gender of the thrower For this competition the 20 Ib 25 Ib 35 Ib 20 kg and 56 Ib weights the same implements as are used in the weight and superweight throws In addition to the normal inspection both Meet Management and the Implement Inspector must ensure the correct implements are available per Tables 3 and 9 of the Appendix The 98 Ib 200 Ib and 300 Ib implements are unique to the ultraweight pentathlon only a limited number of these are available in the United States The top priority should be the weighing of these implements Since Associations are not expected to ow
47. f loop for connecting the wire is 110 mm There is no specification of the sides any longer The handle may be straight or curved USATF and IAAF require that under a 3 8 kN tension load the handle will not deform more than 3 mm and a minimum breaking strength of at least 8 kN These force parameters cannot be tested by any of the implement inspection kits Unless the handle looks very old or significantly bent pass it provide it meets the 110 mm length requirement and looks like it can withstand repeated throws without breaking Also if there is any movement or looseness where the brace enters the grip disqualify it 10 If the implement passes then mark it by painting or taping both the loops at the connection points and the handle so that neither the handle nor the wire can be changed Mark the swivel plug so that it can t be unscrewed to lengthen the hammer Alternatively wrap the loops and connection points with colored tape This is especially useful on days when the landing area is wet Tape adheres better to both loops and handle than paint which tends to come off through use If there is a lot of tape or it looks like a weight has been added in the tape remove it It takes a lot of tape to add any appreciable weight to a hammer See Table 1 and Figures 14 to USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 24 17 in the Appendix WEIGHT 1 For safety check the weight head and handle for dents
48. f the handle does not meet this requirement impound the implement unless the athlete can change the handle and resubmit the implement The handle should not stretch appreciably under the weight of the implement The NCAA now specifies that a hammer handle cannot be used and if the grip can swivel at its connection point to the ball or bag it shall be an equilateral triangle with no side more than 190 mm 7 5 in or less than 100 mm 4 in If the grip cannot turn it only needs to be a triangle with the same maximum and minimum dimension requirement USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 25 5 Check that the minimum diameter of the welded steel links making up the connector USATF rules Note there is currently some wording difference between the NCAA and the rule book but there is no intent that the rules be different The NCAA also allows the grip to be connected to the ball by means of a steel line 6 The 35 Ib implement has a minimum diameter of 145 mm and a maximum diameter of 165 mm The 20 lb implement has a 130 mm minimum and a 150 mm maximum f they are synthetically covered spherical implements they can be no greater than 15 mm larger in diameter than the corresponding metal implement Weight bags have no diameter requirement See Tables in appendix for other implements 7 Beginning in 1999 there is now a center of gravity measurement for the metal weight for USATF I
49. have not been making the minimum diameter 5 If it meets all of the requirements mark it and put it with the other approved implements for that event If not then see Step 11 above in the general procedures section See Table 4 and Figure 9 in Appendix DISCUS 1 Check the rim and nearby surfaces for dents cracks or roughness that would aid the grip All discuses must have metal rims with the exception of high school where the use of the rubber discus is allowed Check the implement for any loose parts If there are any significant areas that can be gripped easily impound it Normal wear or minimum damage is acceptable Some athletes have immersed discuses with wooden centers in water in order to make weight On a hot sunny day a wet implement dries quickly and is underweight during the competition Impound any wet discus Be sure the profiles of both sides are the same Place a straight edge on each side The discus contour should be in contact along the entire length of the straight edge for a legal implement That is the taper should not be concave or convex in nature Dents are acceptable as long as they aren t along the edge too big or cause the edge not to fit the ring A bent rim is usually the cause of the last problem A discus is held at the edge so indentions closer to the center should not give a thrower an advantage A broken or cracked metal ring is reason enough to impound a discus Safety should be a major concern However be
50. ignificant amount of wire draw then impound the implement unless the athlete can change the wire and resubmit the implement The wire should be a single unbroken length of spring wire at least 3 mm in diameter The most likely places for breaks are where the wire is wound around itself to form the loops at both ends Likewise any sharp kinks are potential problem areas The wire is connected to the head by a swivel while the grip is connected to the wire via a loop but not a swivel 8 Check the size of the loops at both ends of the wire Neither can be bigger than 1 95 cm in diameter for USATF sanctioned meets If the loop is too wide carefully squeeze the loop with padded pliers until it meets the 1 95 cm maximum This dimension is not specified by other rulebooks NOTE Why check the loop Some competitors will come with a big loop and during warm ups it will straighten out making the hammer too long This has been a parameter in the USATF rulebook for a number of years but it is not covered in the others Also check that the wire loop is tight so it won t unraveled when throwing lf appropriate add adhesive tape or plastic electrical tape over the ends to keep it from unraveling or so the wire ends don t get caught in the cage netting This is a safety concern rather than an implement weight concern 9 Check the dimensions of the handle The handle can be any width The maximum perpendicular length between the bottom of the grip to lowest edge o
51. ing Monograph Series February 2011 Rev 0 PAGE 30 IMPORTANT IMPLEMENT SPECIFICATION DIFFERENCES BETWEEN THE VARIOUS RULEBOOKS AND DIVISIONS Tables 1 4 in the appendix summarizes all of specifications for all implements Some data is still needed for the handicap implements This table was compiled as convenient way to have all the data in one place In case of a question always refer to the rulebook itself in the event that a table has an incorrect entry Weight There are still some slight difference between the NCAA and USATF concerning the Weight specifications There is also a length difference between NCAA USATF Open and USATF Masters WMA The WMA rules are different as regards the connection links Javelin There are no longer any differences between the rulebooks for the javelin specifications All refer to the IAAF specifications Hammer There are no longer any specification differences for the NCAA USATF IAAF and WMA for the hammer However only USATF has specs for the size of the wire loop at each end USATF National Officials Committee Training Monograph Series February 2011 Rev 0 APPENDIX INDEX W amp M Room Layout Minimum Figure 1 W amp M Room Layout Recommended Figure 2 Storage Fig 3 amp 4 Sample Implement Inspection amp Impoundment Form Throwing Implement Specifications Summary Tables Hammer Table 1 Weight amp Superweight Table 2 Ultraweight Pentathlon Table 3 Shot Tabl
52. is significantly from the center However there is no specification for this eccentricity and thus should not be used to disqualify an implement 3 Weigh the shot Make sure the shot is clean of any foreign substance that might significantly affect the weight If just at weight recheck it to make sure it is clean and that removal of any debris doesn t cause it to drop below the minimum Normally the tolerance of your scale won t be sufficient to measure such small differences Note if you are using a double pan scale place an equal size washer on each pan to keep the shot from rolling off the pan and place the weight on one pan and the shot on the washer on the other one The men s shot weighs 7 260 kg and the women s 4 000 kg For other weights see the previous chart or the tables in the Appendix In areas where junior high or middle school boys throw the 8 Ib shot be alert for 8 Ib shots masquerading as high school girls 4 kg shots this is a common problem Also be aware the Masters W75 and Sub Bantam shot is 2 kg not 4 Ib If you are using the older TRACKMASTERUV use weights 1 4 and 8 for the men s shot USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 20 weight 7 for women s shot weights 5 and 6 for the Junior men s and weight 6 for the Junior women s shot Remember that there is a tolerance for any scale but particularly the electronic scale Because there is a digital display people tend
53. ision Shot Discus Javelin Hammer Event Division TABLE 11 IMPLEMENT SPECIFICATIONS SUMMARY USATF YOUTH IMPLEMENTS PAGE 47 Sub Bantam 2 kg Bantam 300 g mini Sub Bantam Bantam Midget Young Women Shot 2 kg Discus Javelin 300 g mini Hammer age 8 amp below 9 10 11 12 13 14 15 16 17 18 Per USATF Rules 300 1 b amp 301 USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 48 NN D 2 24 22777 Gr P Re d f s d i 4 Ue USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 49 Figure 7 Doran Scale used in Pacific and So California UCS Kit Scale MF Athletics Scale Figure 8 UCS and MF Athletics Scales USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 50 MOM ICONE EE Figure 11 Discus Measurements for Beijing Olympics USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 51 50mm Min Diameter Max Diameter Note Not to scale although dimensions are correct Figure 12 Discus Gauge used in England Figure 13 Discus Gauge used in Italy USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 52 Figure 14 Hammer Stretcher and Length Gauge used
54. ld TRACKMASTER V use the number 1 weight for the men s javelin and no weight for the women s javelin There is no weight for the 400 g javelin A 200 g weight can be added to the pan using the balance 200 0 400 g Javelin 600 g to verify the weight For other javelins use other weights 8 Check the tip for the forty degree taper maximum taper using the tip guide This can also be done with a plastic protractor and several pieces of tape The tip may be rounded due to wear but the taper of the head into the tip must be 40 or less The remaining checks should be made whenever possibly but generally don t change with use i e they are characteristic of the javelin manufacturing process Thus if these have been previously checked as signified by the mark of the day or one you recognize then with limited time skip them The first time a javelin is inspected each year you check these items Then use a special mark to indicate that these have inspected These points can then be overlooked for the rest of the season USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 27 9 Check the diameter just in front of the grip or handle The diameter behind the handle should be no smaller than the diameter in front of the handle less 0 25 mm Note it is not uncommon for the diameter to be slightly larger behind the grip The most accurate way to do this is with the calipers When using the calipers don t push too ha
55. leanout the edges If it is a wood discus place some tissue in the center to keep the clay ring or ball from rattling potentially correcting the problem Often the plates get tightened too much so that the edges of the flat surface have been bent upward so that the discus is too thick Remove the flat plates and level them with a hammer or bend them using pliers or Vise Grips The plates usually straighten out and fit back in the groove Other times the plates are not distorted but the plate fasteners simply need to be snugged to get the discus within the thickness limits When you dismantle a discus make sure you know which side which plate go together This is particularly true for discuses that may be out of round or the rims are bent and thus may only fit back together one way Mark the plates the sides and the rim before taking the implement apart See Table 5 and Figures 10 13 in Appendix HAMMER 1 Check the hammer head for internal movement dents cracks and a plug for adjusting the weight Internal movement is a reason for not certifying a hammer If there is a plug then seal it if it looks like it has been recently opened otherwise mark it as described in the shot section Make sure the head is reasonably spherical and made of iron or other metal not softer than brass See discussion for the shot and the diameter below Check to see that the swivel is free to move 2 Remove any existing tape from the hammer particularly from the wire
56. lement could be rechecked during the competition in such a case 3 While returning to the Implement Inspection room you should make sure that there are adequate signs to direct athletes to your location from where they will normally enter the track Post the times for weigh ins Make sure you have a copy of the event schedule and post it nearby to avoid having to answer questions regarding starting times 4 Set up the Weigh In room Set aside an area for receiving and marking implements with the athlete s name or school This should be near the door to keep athletes away from the measurement area In addition set aside separate areas for storing competition ready implements impounded implements and unchecked implements It is important that each of these areas is segregated to avoid problems See drawing in the appendix 5 Set up your measuring equipment Pay particular attention to having your scale level Place the scale on the table carefully so that flexing of the table under load won t tilt the scale Put the scale in an area with plenty of space to avoid moving it to weigh all the different size implements The scale should not be in direct sunlight as heating it may alter its adjustment The scale should be turned on about 15 minutes before any calibration check to allow for adequate warm up time Cross check your scale versus a second scale or standard Two calibration weights may be needed one at the low end and one at the high end i
57. les 2 9 3 NFHS high school Rule 6 4 2 IAAF Rule 189 2 WMA Appendix A Rule 4 USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 42 M TABLE 6 MJ THROWING IMPLEMENT SPECIFICATIONS SUMMARY USA JAVELIN TRACK amp FIELD JAVELIN USATF RULE 206 UNITS IMPLEMENT NAME 800g 8000 7000 6000 600g 500g 400g AGE GROUP POST 86 POST 98 OPEN MEN WOMEN NCAA NCAA MASTERS M30 M50 M55 W30 W45 W50 W55 M80 M45 M60 M65 M70 M75 W60 JUNIORS MEN WOMEN YOUTH IAAF BOYS YOUTH INTERM INTERM Y MEN Y WOMEN HIGH SCHOOL HS BOYS HS GIRLS WEIGHT NOM G 800 800 700 600 600 500 400 NOM OZ 28 22 28 22 24 69 21 16 21 16 17 64 14 11 MIN RECORD 800 800 700 600 600 500 400 RANGE FOR SUPPLY MIN G 805 805 705 605 605 505 405 MAX G 825 825 725 625 625 525 425 LOCATION OF MAX DIAMETER GRIP FRONT FRONT FRONT FRONT FRONT FRONT FRONT DIAMETER AT THICKEST POINT MIN MM 25 25 23 20 20 20 20 MAX MM 30 30 28 25 25 24 23 DIAM REDUCTION AT REAR OF GRIP MAX MM 0 25 0 25 0 25 0 25 0 25 0 25 0 25 OVERALL LENGTH MIN MM 2600 2600 2300 2200 2200 2000 1850 MAX MM 2700 2700 2400 2300 2300 2100 1950 LENGTH OF HEAD MIN MM 250 250 250 250 250 220 200 MAX MM 330 330 330 330 330 270 250 DIST FROM TIP TO CENTER GRAVITY MIN MM 900 900 860 800 800 780 750 MAX MM 1060 1060 1000 920 920 880 800 WI
58. lin balance and diameter gauges Hammer length gauge 20k electronic scale Scale ring Aluminum case with foam Price 3 590 00 Figure 35 Gill Measuring Kit USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 63 Figure 36 onics Trackmaster Kit Items Included MARK V MARK VI MARK VII MARK VIII MARK IX MARK X MARK XI MARK XII x x x X X x x x x x x x x Electronic Scale Carrying Case Shot Put Receiving Cup Assy Hammer Gauge Javelin Diameter Gauge Javelin Tip amp Grip Gauge Javelin Balance Gauge Men s Discus Gauge Women s Discus Gauge 1 5 amp 1 6 ka Discus Gauae Shot Rings 95 mm Shot Rings 98 4 mm Shot Rings 100 mm Shot Rings 105 mm Shot Rings 110 mm Shot Rings 115 mm Shot Rings 117 5 mm Shot Rings 125 mm Shot Rings 130 mm Shot Rings 145 mm Instruction Manual ees x KKK XK For more information contact Doktronics at or contact your local Daktronics representative USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 64 Figure 37 Daktronics Trackmaster TRAC KMASTER Gauges for Field Implement Certification by Daktronics For years track and field officials coaches and athletes Daktronics has redesigned the Trockmaster system All TrackMaster gauges are laser cut stainless steel to More than 500 TrackMaster systems are currently in use have de
59. lished every two years You can order from the web site USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 9 cost includes mailing Also available for download at the same web site 5 World Masters Athletics http www world masters athletics org The rules are available as downloads only at this web site This includes separate PDF files for the rules of competition and the technical appendices Equipment provided by the Meet Site W amp M room See recommendations in Figures 1 amp 2 in the Appendix Table Three to four tables which are at least 6 feet in length One would be used for your scale and measuring instruments one for the hammer and or javelin measurements and one for implement check in Make sure you have plenty of room particularly if you are doing the javelin A solid table is preferable to a folding table A couple of chairs are always useful Scales and scale comparison summary The following precautions should be observed 1 When properly set up the scale must be level Some scales include an integral bubble level For those that don t a small torpedo level or similar should be used to set the scale level 2 Most tables will bend as weight is placed on them To ensure the scale does not get tilted by the table when an implement is being weighed the scale should be placed either in the middle of the table or directly over one of the legs 3 Most electronic scal
60. measurement area If you have a room smaller than this you will have problems checking the javelin and storing implements until competition time This is particularly true for meets greater than two days It should be located near the field and preferably near the athlete entry gate Make sure there are adequate signs and announcements about its location If you do the measurements on the field or outside make sure that the wind doesn t interfere with your weight measurements In a meet where you expect a record you consider an additional location near that event Then you can quickly recheck an implement during the competition and return it to the athlete before the next throw You may also want a writing area keep athletes and other people away from the measurement area set up the room so that the implements are dropped off at the door See Appendix Fig 1 EQUIPMENT The most common implement inspection equipment include the Trackmaster M UCS Implement Certification unit and the Gill Implement Certification Kit However some meets may find them cost prohibitive as these now retail from about 1200 for a high school unit without scale or javelin gauges to 3700 Currently there are a few specialty tools to measure some implements like the javelin or hammer This manual will describe several that are available You also can make some of your own if you have access to shop facilities The TRACKMASTER V equipment is no longer manufactured The
61. n certified scales in this weight range Meet management and or the Implement Inspector must arrange for the weighing to take place in advance of the meet at an establishment with an appropriate scale The dimensional specifications of these ultraweights are per Table 3 of the Appendix JAVELIN NOTE The javelin has the most required measurements so it is very important that the inspection be done in the order listed to limit the measurements on an implement that won t pass The most common reasons for failure are listed first 1 Hold the javelin vertically first tip down then rotate so the tip is up and shake Listen for any internal movement Tap the javelin on the floor to make sure there aren t any moveable USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 26 parts Internal movement might impact the center of gravity and therefore its flight characteristics Loose or rusted internal parts may also be an indication of imminent failure of the javelin usually snapping in half during the throw or landing 2 Check the javelin whipcord grip to see if itis damp which might help it make weight If the grip is damp impound the javelin 3 Check for indentations rings roughness flutes or other aerodynamic improvements i e non smooth finish Normal wear is acceptable as long as the groves aren t symmetric Remove any clumps of dirt as this may affect the balance Check the javelin fo
62. ntry and Long Distance Running it is affiliated with the IAAF or the International Association of Athletic Federations which governs the sport worldwide It is likewise the representative for track and field race walking and the marathon to the United States Olympic Committee There are three levels of USATF officials Association National and Master Each has its own qualification requirements You begin at the Association level after you have attended an officiating clinic and taken the association level test on the USATF rulebook Each association sets the requirements for their local area Some associations require officiating at a certain number of meets as a trainee before you can join Others only require that you complete a test on the rules Contact your local association to obtain their requirements You can get their address from the USATF Website at www USATF org or by writing the author at the address shown above At the present time USATF is the only organization which is certifying W amp M USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 4 officials for USATF NCAA IAAF WMA World Masters Athletics and high schools in the U S PREMEET REQUIREMENTS FACILITIES A room at least 10 feet by 10 feet and with a 9 foot ceiling if you are handling javelins and preferably twice that size with a lock and key and limited access is recommended You will need good lighting preferably over the
63. ool name if appropriate on the implement 2 Have a separate box or container for the implements to be inspected to avoid mixing with previously certified implements 3 Check each implement for internal movement including the javelin should this be a requirement or loose connections when you first pick it up 4 Check the general appearance Is this a homemade implement or a modified implement Are all the original pieces there Does it have the expected shape There should be no significant nicks gouges and logos decals or movable implement weights or parts that would give an advantage for a better grip or better aerodynamics 5 Does the implement have previous weigh in markings 6 Does the implement have a name or school identification in case you have to impound it so it can be identified for picked up later 7 15 the implement clean or dirty or with excess tape or other removable debris which might affect its weight or center of gravity Note a single piece of tape or label will not make enough difference in weight or balance such that it needs to be removed Your equipment is not accurate enough to detect that small an increment 8 Weighing is first because it is the most common reason for implement failure Constant use and damage tend to reduce the weight of an otherwise legal implement When checking the weight of the implement do it carefully There are three common types of scales used Any scale which can or has been
64. or cracks that might cause them to break during competition Be sure the plug for adjusting the weight is tight If there is a plug nut then seal or mark it per shot instructions Make sure the head is essentially spherical and made of iron or other metal not softer than brass Check the embedded forged steel eye used for attachment In some indoor competitions a weight bag or synthetically covered weight may be used Typically a synthetically cover sphere which can have internal movement is contained in a canvas bag or nylon straps which is attached to a handle See NCAA Rule 10 9 for a picture Note outdoor or metal weights cannot have internal movement 2 Check the weight This is most easily done by placing the handle on the scale and putting the head in the handle so it doesn t roll The weights for this event are measured in kilograms kg If you are using the older TRACKMASTER V you can use weights 6 7 8 and 9 for the 35 Ib weight The number 9 weight is optional The men s weight is 35 Ib 15 880 kg and the women s is 20 Ib 9 080 kg Do not allow wet implement bags For indoor weights with canvas bags or nylon straps some athletes will tape quarters or large washers onto the head to help them make weight As the head rotates within the bag during successive throws the quarters will rip free and detach The implement inspector should be aware of this type of hobby shop repair A more proper repair is adding washers to the connecting
65. ot contact anything in the process The open men s hammer weight is 7 260 kg nominally 16 Ib and the women s is 4 kg If you are using the TRACKMASTER the weights are 1 4 and 8 for Men s and 7 for Women s hammer See Appendix or rule books for other weights 5 Check the hammer head diameter and roundness The hammer should be essentially spherical It must pass in at least three different planes If it doesn t pass impound it It must be at least 110 mm and not more than 130 mm in diameter For the 4 kg hammer the diameter USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 23 measurements are 95 and 110 mm Note for other weight hammers check the shot dimensions because they are the same Note 1 There is currently no quantitative check for out of roundness or sphericity a flat spot etc What is round may differ from one implement inspector to the next The spherical nature of the hammer is less important than for the shot because the hammer is not grasped by the head Likewise do an eccentricity test as in item 2 for the shot 6 Check the center of gravity by placing the hammer head sideways on a 12 mm diameter horizontal sharp edge orifice that is the swivel should be oriented horizontally which isolates the measurement to the most critical axis for the hammer It passes if it doesn t fall off 7 Check the wire diameter in at least three places lf it is close or there appears to be a s
66. pended on Trackmaster gauges to certify that adding exciting new features while maintaining the provide extremely accurate measurements that will throughout the United States TrackMaster implements the implements used during events meet specifications proven go no go system All of the implements are easy always be correct All labels on the gauges are laser were used at the 1994 Centennial Olympic Games in Certified implements ensure that athletes can qualify to use and are designed and manufactured for years of etched For accuracy and permanency Atlanta Georgia for state regional or national competition and that trouble free use new records will go in the hooks Digital Electronic Scale Shot amp Hammer Rings Javelin Gauges Discus Gauges The javelin tip and grip gauge is used to measure the tip length and length of the javelin This gauge includes measurements for all javelins used including those for high school college international and WAYA men s and women s competition Daktronics in association with Mettler Toledo a leading scale manufacturer has developed a unique digital scale especially for the TrackMaster system Now it s easy to read the exact weight of your implement and know exactly how close it is to the specification Just press a button to reset the scale to zero place the The standard set of shot rings has been expanded to implement on the receiver cup and read the weight include gauges For all
67. r tape or decals Manufacturer stickers are ok but other tape is not which may affect balance or aerodynamic characteristics 4 Make sure that there isn t any paint or solder on the tip that might come off during the competition thus altering the balance point Use nail polish remover if you need to remove the paint 5 Check the overall length the length of the head and the length of the grip Make a folding device to measure the overall length and the incremental distances as shown in the equipment section Alternately mark a retractable steel tape or adhesive tape on the edge of a table with the necessary dimensions This allows you to quickly lay the javelin on the tape and check the overall length the length of the point and length of the grip Mark the 150 mm tip and tail marks used later for contour measurements 125 mm for 400 g javelins See Table 6 in the Appendix for all the appropriate dimensions for each of the currently legal javelins 6 Check the center of gravity by performing the balance test Most javelins balance at about the second cord on the handle That is not a specification just a fact The javelin should just balance or just drop down at the point This is the most common reason for why a javelin fails Mark the center of gravity on the grip this is where a silver Sharpie pen is very useful if the cord is black Measure the distance to the tip See Table 6 for dimensions in Appendix 7 Check the weight With the o
68. r wire size Mark VII for Collegiate competition Mark VIII for High School competition Mark for High School competition without Hammer and Javelin measuring devices The javelin diameter gauge is used to verify that the Mark X scale and carrying case implement is the correct diameter at various points along the length of the javelin as specified by the rules All of the models listed above include gauges For both 8 men s and women s implements See hack page for details DAKTRONICS INC COMMUNICATION SOLUTIONS THROUGH TECHNOLOGY USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 65 UCS Implement Certification Unit 726 2600 Designed engineered and manufactured to look feel and measure the way high quality measuring gauges should All UCS Implement Certification Unit are machined for the upmost accuracy as well as being safe and easy to use Each unit that is comfortable to handle and aesthetically pleasing comes complete with discus javelin shot put gauges and digital scale to measure implements meeting the standards of the IAAF NCAA and the National High School Federation Hammer certification unit is sold separately To protect your investment each unit comes complete with a padded rotationally molded rolling carrying case rA A 3 700 00 Figure 38 UCS Measuring Kit USATF National Officials Committee Training Monograph Series February 2011
69. rd Just snug it up and move it around to determine the maximum and then the minimum dimension at that point Record those measurement The cross section is suppose to be circular but there is a 296 allowance between the largest and smallest diameters at a cross section The mean of these two measurements will be used for checking the specifications That means the if the mean diameter is 29 mm then the measured diameter at a cross section could vary as much as from 28 71 to 29 29 mm Check the diameter of the tail which must be greater than 3 5 mm for all javelins Check the diameter of the grip The difference between the diameter of the grip and the diameter of the shaft at the point at the front of the grip should be no more than 8 mm There can be no abrupt alterations along the shaft Note the older TRACKMASTER ring sets cannot measure the new javelins properly See bottom picture in Figure 37 in Appendix under javelin gauges In the interest of time some of these measurements may be excluded if a visual check does not show a gross or obvious problem Some people have started to use semi circular or square gauges to measure diameter as well as the maximum and minimum contour points See Figures 29 and 30 in Appendix 10 Mark the 150 mm point from the tip and the tail substitute 125 mm for the 400 g javelin in all cases Mark the mid points between the tip and the center of gravity and the tail and the center of gravity a center point tape mea
70. s They can be purchased from the following institutions 1 National Federation of State High School Associations P O Box 360 Indianapolis IN 46206 800 776 3462 www nfhs org general site and www nfhs com on line store Published in 3 volumes at 7 20 each for Rules Officials and Case Book plus shipping charges The Rule book and Case book are annual and the Officials book is published every two years Order via the on line store phone or mail 2 National Collegiate Athletic Association P O Box 6222 Indianapolis Indiana 46206 6222 317 917 6222 WWW ncaa org and www ncaa com Cost is 7 80 plus shipping charges Order at www ncaapublications com go to the Publications Playing Rules page The rule book is published once every two years and is also available as a PDF download on the same web page Rules interpretations and case book are downloadable at www ncaa org 3 USA Track and Field 132 E Washington Street 2800 Indianapolis IN 46204 317 261 0500 www usatf org and http www usatf org groups Officials Cost is 15 00 13 50 for USATF members annually plus shipping charges You can order by phone or find the on line ordering links at http www usatf org groups officials resources rules A PDF download is also available on this page 4 International Association of Athletics Federations 17 rue Princesse Florestine BP 359 MC 98007 Monaco 377 93 10 8888 www iaaf org Cost is 10 from IAAF and is pub
71. s with a caliper The only other specifications are weight and center of gravity Alternately you can mark your javelin board with the required dimensions and get a larger fulcrum to determine the center of gravity Checking the center of gravity is particularly important since some mini javelins have been found to be significantly out of specification in recent years See Table 7 and Figure 32 in Appendix USE OF THE TRACKMASTER V or OTHER CERTIFICATION KITS The following section is included as an introduction the TRACKMASTER V UCS or Gill Implement Certification equipment See Figures 33 to 38 in Appendix It is the most commonly used weights and measure system in the United States However the TRACKMASTER does not perform all the indicated tests listed in the measurement section You may have to construct or buy some additional devices to do the measurements Most are reasonably straight forward If you have access to either a wood or metal shop you can make your own Use a caliper and make sure it is accurate to at least 0 196 Generally the TRACKMASTER UM UCS and Gill kit are set up on the principle of pass or fail It doesn t give you the actual measurement but indicates that you are above the minimum or below the maximum The TRACKMASTERU is the most widely used system with over 350 units throughout the United States before Daktronics began manufacturing the newer version in 1997 Before that there were four models sold by Re
72. se paint particularly on the shot where markings are easily worn off Mark all implements the same way with the same color same location and same mark If it is more than a one day meet change the color and the mark each day Make it distinctive Paint sticks are easier to use and are available in your local hardware store stationery store or hobby shop Spray paint can also be used but usually takes longer to dry and is not as easy to use Fluorescent colors stand out more Broad Line Deco Color Opaque Waterproof Markers or nail polish also works well You can also use colored dots or square labels on the javelin or discus However these markers wear off easily on the hammer or the shot Colored electrical tape may be used on the hammer wires and weight handles particularly in wet conditions and can be more durable than paint Sharpie pens work well in many cases and are available in several colors as a minimum use a black and silver Sharpie as the latter stands out well on dark implements Sharpies are also available in retracting self sealing pens which can be easily deployed with one hand Adhesive Tape For labeling equipment and laying out javelin measuring tape also for marking an implement with the reason for its disqualification Masking Tape For erecting signs and schedules Implement Labels and Form Sheets Computer labels can be used to indicate event and name of the implement owner This helps in tracking implements through the
73. sure greatly speeds up this process Make the necessary measurements using either the TRACKMASTERV gauge or a caliper The percent of the total diameter for both the Men s and Women s javelin are the same The diameter at the 150 mm point from the tip must be less than or equal to 8096 of the maximum diameter The diameter at the 150 mm point from the tail must be greater than 4096 of the maximum diameter The diameter at the mid point between the tip and the center of gravity must be less than or equal to 90 percent of the total diameter The equivalent point half way to the tail must be greater than or equal to 9096 of the maximum diameter Thus the measurements on the tip end are maximums so measuring device should go beyond the indicated marks and the tail measurements are minimums so the measuring device should not go beyond the marks 11 Either use a 50 cm long straight edge to check for uniform tapering or use a calipers to measure each point and calculate the percentage at each point if there seems to be a question about the tapering Any concavity can not exceed 0 20 mm 12 If the javelin passes all the tests mark it on tip end near the whip cord or just above the metal head Do not mark it behind the grip because it may impact an athlete s grip Because of the many changes in specifications in javelins over the last 20 years the following table of older javelin specifications is included You may continue to see some of these implements
74. tam Sub Bantam USATF Youth Girls Y women Youth USATF Youth Girls Int girls Midget USATF Youth Girls Bantam Sub Bantam High school Boys Girls IAAF Open Men Women IAAF Youth Boys Junior Youth IAAF Youth Girls Jr Youth WMA Men M35 M45 50 55 M60 M65 M70 M75 80 WMA Women W35 W45 W50 W70 W75 Weight Nom Ib 16 00 13 23 12 00 11 02 8 82 6 61 6 00 4 41 Nom Ib oz 16 0 13 3 7 12 0 11 0 3 8 13 6 10 6 6 0 6 6 5 Nom kg 7 26 6 00 5 44 5 00 4 00 3 00 2 72 2 00 Min kg 7 260 6 000 5 443 5 000 4 000 3 000 2 720 2 000 Range for supply Min kg 7 265 6 005 5 450 5 005 4 005 3 005 2 725 2 005 Max kg 7 285 6 025 5 475 5 025 4 025 3 025 2 745 2 025 Diameter all Min mm 110 105 98 4 100 95 85 80 Dia USATF men boys mm 130 125 117 5 120 110 110 Dia USATF masters Max mm 130 130 130 130 130 Dia USATF master women Max mm 110 110 90 Dia high school Max mm 117 5 110 Dia NCAA Max mm 130 110 Dia IAAF Max mm 130 125 120 110 Dia WMA men Max mm 130 125 120 120 120 Dia WMA women Max mm 110 110 90 Dia USATF men indoors Max mm 145 140 135 125 125 Dia USATF women indrs mm 130 130 110 masters 145 145 145 145 145 Dia IAAF NCAA indoors Max mm 145 130 Dia USATF YB indoors 130 Circumference HS only Min mm 309 1 298 4 Max mm 369 1 345 6 Sources NOTE USATF Rules 188 4 221 5 301 320 2 332 3 g Masters W75 group is effective 5 1 10 NCAA Rules 2 8 3 10 7 3 Youth Sub B
75. ter at largest point max mm 43 45 Distance from tip to CG min mm 365 560 Distance from tip to CG max mm 380 610 Diameter of Shaft forward of grip min mm 30 30 Diameter of Shaft forward of grip max mm 38 38 Diameter of Shaft behind grip min mm 24 31 Diameter of Shaft behind grip max mm 30 37 Diameter of Shaft at grip min mm 34 40 Diameter of Shaft at grip max mm 40 45 Length of grip min mm 99 105 Length of grip max mm 109 125 Location of front of grip from tip of tail min mm 322 550 Location of front of grip from tip of tail max mm 332 570 Number of Fins 4 4 Fin Length min mm 162 165 Fin Length max mm 168 175 Fin diameter peak to peak opposing fins min mm 95 85 Fin diameter peak to peak opposing fins max mm 105 95 695 327 BALANCE POINT 380 365 300 amp 400 gram Mini Javelin All dimensions except balance point are typical USATF National Officials Committee Training Monograph Series February 2011 Rev 0 VJ THROWING IMPLEMENT SPECIFICATIONS SUMMARY IAAF AGE GROUP IMPLEMENTS TRACK amp FIELD TABLE 8 Men ori Shot 5kg 7 260 kg Discus 1 5kg 2kg Javelin 700g 800 g Hammer 5kg 7 260 kg Women Event Division a Women Wome Youth Junior Senior Shot 4 kg Discus 1 kg Javelin 600 g Hammer 4 kg age 16 17 18 19 20 34 Per 2009 IAAF Rule 187 1 USATF National Officials Committee Training Monogr
76. to believe all of the numbers If the reading is within the tolerance limit then one cannot tell if the value is less or more than the displayed weight for further details see the section on scales under equipment 4 Check the minimum and maximum diameter using three locations with the appropriate diameter gauge For the men s shot the respective diameters are 110 mm and 130 mm while for the women s shot 95 mm and 110 mm For other dimensions see the tables in the Appendix If all three diameters clear pass the implement If one or more fail check at least two more locations If you can t get at least three acceptable measurements impound the implement For indoor competitions each rulebook is slightly different The acceptable maximum diameters are slightly larger for synthetically covered implements in USATF and IAAF meets 145 and 130 mm respectively As dictated by the facilities and the Games committee outdoor metal shots synthetic shots with rubber or plastic covers or metal filled ones may be used provided these implements meet weight For Masters implements the USATF generalized the diameter rule The diameter for a synthetic covered indoor shot can be a maximum of 15 mm larger than the corresponding outdoor men s shot and 20 mm larger for the corresponding outdoor women s shot In 2001 USATF and IAAF specified that only indoor or outdoor implements can be used in the same competition not both NOTE 1 Some new stainless steel shots
77. to this manual there is available a free newsletter for Implement Inspectors across the country published by the subcommittee in February and September To get on the mailing list write to the same address or e mail your request The only other one that we are aware of is Prontuario Di Verifica Attrezzature E Attrezzi published by the Federazione Italiana Athletica Leggera in 2007 for the WMA World Championships at Riccione Italy This manual is intended as a how to book for the novice Inspector of Implements as well as a guide to the seasoned veteran It is an attempt to get more uniformity in the methods used to certify implements and in the measurement techniques being used throughout the United States Although the specifications for implements are published in the various rule books of the various governing bodies for track and field the method of weighing and measuring implements is not specified in any of them The Inspector of Implements should be able to say that any implement passes because it met every requirement of the rules governing the meet Simply weighing an implement does not approve it for use in competition It must meet all the measurement standards HOW TO BECOME A CERTIFIED OFFICIAL At the present time USA Track amp Field is the major certifier of officials for track and field As the national governing body for Athletics in the United States which includes the sports of Track and Field Race Walking Cross Cou
78. tolerance the scale will be deemed to be working properly In the real world this means the scale could indicate an illegal 3 990 kg shot to weigh 4 kg if its adjustment happened to be high in its tolerance band Or it could indicate a legal 4 009 kg shot to weigh 3 999 kg if its adjustment happened to be low in its tolerance band Scale 2 has an actual accuracy of 1 gram This means it could show a true 4 000 kg mass standard to weigh between 3 999 kg and 4 001 kg This means the scale could indicate an illegal 3 999 kg shot to weigh 4 kg if its adjustment happened to be high in its tolerance band Or it could indicate a legal 4 000 kg shot to weigh 3 999 kg if its adjustment happened to be low in its tolerance band Clearly Scale 2 will cause fewer illegal implements to be passed and fewer legal implements to be disqualified It is up to the individual association school or club to decide how tight the scale s tolerance should be vs how much they want to pay for the scale Weights f a balance scale is being used various combinations of weights will be required depending on the competition This can be accomplished with the following sets of weights a 1 2 5 10 20 Ib b 1 two 2 5 kg and c 50 100 300 400 600 800 g This allows the weighing of all implements up to the 35 Ib weight The following list shows the types of meets and the expected implements Men s Open Women s Open Shot and Hammer 7 26 kg 4 kg Jav
79. tored under the benches or in a separate room The check in table should be set up to block general access to the room Otherwise the check in table can be in a separate room D CO USATF National Officials Committee Training Monograph Series February 2011 Rev 0 W amp M Room J J 8 wide roll up window for implement 15 x30 check in amp check out M E ledge is same height as bench 8 wide roll up garage door gt 5 3 check in bench o 212 x8 tv Soe 28 2 o oO x D Q mo 25 o D implement bins See notes on next page bins racks and or crates for implement incoming implement storage carts shot inspection amp weighing scale bench 2 x6 primary hammer NE hammer inspection amp stretcher javelin inspection bench repair bench 44 high 3 x8 en 3 x 10 Figure 2 W amp M Room Layout Recommended USATF National Officials Committee Training Monograph Series February 2011 Rev 0 Q D E 3 3 D 3 o 0 33 Notes A ois 7 34 This is a recommendation for the design of a new W amp M room Room is 15 x 30 inside dimensions Ceiling height is 12 ft minimum to accommodate javelin handling Garage door height must accommodate vertical 800 g javelins which are stored on a cart 710 ft Roll up door amp window must be lockable J
80. ts so the bar doesn t damage the knife edges or bearings With care the scale will last a long time Without care damage can occur very quickly Remember with normal use scales and weights need to be calibrated at least annually When moving the scales immobilize the scale to protect the knife edges or bearings Use foam rubber under the arm and or on top of it for protection Calibrate the scale before use each day or each time you move it For the double pan variety try weighing two identical weights switching them to make sure the weights are balanced and level enough Keep the scale out of the wind and sun because both can impact even an electronic scale Before putting any weight on the scale test the movement of the pan s to make sure it moves easily and isn t bound by anything When putting an implement on the pan make sure it is well balanced For hammers shots and weights use a washer on each pan so balanced to prevent the implement from rolling Make sure the scale balances before weighting the implements since the two holding devices may vary in weight On an electronic scale with one pan you can tare the weight out For the hammer put the ball in the handle loop Be careful with new wires that may spring out Make sure the wire isn t in contact with any other surface while weighing the hammer For the javelin the center of gravity is near the front of the handle so place the javelin with the front of the handle near the center of the
81. uges would be accurate to 0 005 inch 0 127 mm or 7 parts in 10000 versus our recommendation of 10 parts in 10000 However the proper care and handling is mandatory in order to maintain its accuracy Remember any standard has some error in it Note a temperature change of 36 20 with some linear measuring devices can alter the reading by as much as 0 24 mm per m This may be additive to the tolerance limit Thus if you have an implement just missing the spec and there is a large temperature difference between the measuring device and the implement or the measuring device and the temperature at which the device was calibrated pass the implement This illustrates why it is good practice not to have the implement or the measuring equipment in the sun Basis for Accuracy Measurements Type of Measurement Expected Measurement 926 Parts Accuracy 1000 Pole Vault Electronic 0 4 High Jump Electronic 1 Discus Hammer Sector 1 64 4 Javelin Sector 169 mm 100 0 16 1 69 9 Temperature Correction 12 mm 100 m 0 01 12 at 10 C difference 2 Weight NIST Class F 0 07g 700 g 0 1 USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 17 GENERAL PROCEDURE FOR ALL IMPLEMENTS 1 Have an implement check in sheet for each athlete to signs and indicate the number and type of implement s he or she is leaving Have tape or labels and pens available so the athletes can put their name and their sch
82. weigh in process When used with the implement forms in the Appendix implements can be monitored easily Men Decathlon Shot Women Open Shot Name Name Using a form with carbon paper lets the event judge know exactly how many implements were checked in and which implements did not pass The labels are particularly useful when you have multiple events or flights in the same event such as in Masters and Youth Meets Samples are found in the Appendix An alternative is to use the DYMOSO electronic tape type device to label each implement Be forewarned though the label adheres poorly to the shot USATF National Officials Committee Training Monograph Series February 2011 Rev 0 PAGE 6 particularly if the landing area is rock or gravel Stencil The more distinctive the better You can buy a plastic geometric or engineering symbol guide at your local stationery store Alternately you can make your own stencils out of plastic metal or wood Square Used to test the overall hammer length Paperwork Have a current meet schedule so you know which implements to do first and when to take implements out to the field Implement Inspection Signs Paper signs to indicate location of Weigh Ins in a plastic cover Implement Spec Tables Complete tables of specifications for all implements from this manual in plastic covers for ready reference Tables are in the Appendix Implement and Impoundment Forms see example in Appendix Poster Sign

IMPLEMENT INSPECTOR`S HANDBOOK

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