Newsletter of the Jet Pilot`s Organization
Contents
1. 616 608 4086 W DISTRICT VIII Ron Schwarzkopf 8744 Hunters Point Way Ft Worth TX 76123 817 292 5712 ronschwarzkopf sbcglobal net DISTRICT IX Vacant DISTRICT X David Reynolds 2126 E Callie Los Marmoles Tucson AZ 85706 520 807 9633 dsr100 dakotacom net DISTRICT XI Bob Brusa 7433 McCormick Woods Dr SW Port Orchard WA98367 360 874 1517 bhaven2 earthlink net CANADA Paul Dries 2 39 Mara Drive Coquitlam B C V3C 5L6 Canada 604 941 1624 Paul_Dries shaw ca AMA membership is required for U S Residents JPO Annual Membership Fee is 25 Send with check or money order made out to The Jet Pilot s Organization to Carol Brusa JPO Secretary Treasurer 7433 McCormick Woods Dr SW Port Orchard WA 98367 Or renew online at www jetpilots org j 3 a aJ r Pa a ff PLOTS OF CARITAT Greg Moore 790 Royal Crown Lane Colorado Springs CO 80906 PreSorted Standard U S Postage PAID Cincinnati OH Permit No 97142. Merchandise JPO merchandise is now available for order through the JPO website www jetpilots org Please visit and support the organization through a shirt or hat purchase We will also be offering T shirts in the near future for 5 through the website and at some jet events throughout the year My thanks to Bob Brusa our Northwest Region VP for his work on this project Go Green While speaking of T shirts we will also offer a free T shirt to those members who voluntarily elect to Go Green by electing to receive their issue of Contrails electronically Not only will it contribute to the elimination of paper but the issue will be available in full color electronically something we can t afford to do in paper form To make this election please drop me a note at pilot114 aol com Thanks to all members and fly safe Keith The Russian teams Mig 27s at the JWM The Christmas and New Year holidays are over and hope that Santa was good to all The weather here in the Pacific Northwest is cold and wet so there will be no turbine flying for the next few months That means it is a good time to complete those half finished projects and do maintenance on your existing models so that everything will be ready to go when the season starts Over the years one of the things that have noticed is that jet modelers seem to have more than their fair share of problems with the pneumatic systems on their models retracts br
3. Balance as of January 31 2012 6 200 66 925 00 3 066 91 3 991 91 2 008 49 8 184 08 Respectfully submitted Carol Brusa Contrails 6 Maine Massachusetts New Hampshire Rhode Island Vermont The New Year was rung in with jet flying in District This year we had another warm New Year s Day in which we were able to get in plenty of model flying in southern New Hampshire Many folks turned out at the local field and we even had a visit by a good friend with a Shockjet Although Max normally flies more exotic complex and sleek aircraft with wild paint schemes he put on a good show with the Shockjet with his rolling circles being a crowd pleaser Many of the folks at my local club had not seen a turbine jet in the air so they were extremely impressed and interested in learning more about turbines Photos of the event are courtesy of Ray Lake of Epping NH Thank you Ray picked up one of Mike Fiorito s new Javelin sport jets and will be getting that together over the coming months l Il let you know how that turns out did purchase a 2 4 GHz receiver for my Tam Jets F 16 so expect to have that flying this year at any event go to as Plum Island and Maine will be 2 4 GHz only but haven t decided if will switch my Bobcat over yet We are in the process of scheduling our New England Jets events which we will ensure do not conflict with the local jet rallies The Notice of Proposed Rule Making for SUA
4. not operate in unison due to minor pressure differences The up lines and down lines can be different lengths The nose gear will generally respond quicker than the mains because it is usually located much closer to the sequencer There is another reason that the retracts will not act in unison one that we can do nothing about Each retract unit has a break away load that must be overcome before the piston will move in the cylinder and the break away load is dependent upon the tolerance of the various parts in the system Minor tolerance differences in the retracts will cause them to start operation at slightly different times Happy Landings Al 5 Contrails Upcoming Events Top Gun April 27 May 1 2012 Lakeland Linder Airport Lakeland FL CD Frank Tiano 863 607 6611 www franktiano com Mississippi Afterburner Jet Rally May 3 5 2012 John Bell Williams Airport Raymond MS suburb of Jackson MS www mississippijets com Dixie Jet Rally May May 3 6 2012 St George UT Central Texas Jet Rally May 17 19 2012 ARCA Club Field Austin TX CD Dan Massey www austinrc org First in Flight Jet Rally May 24 27 2012 Wilson Industrial Air Park in Wilson NC CD Larry Lewis 919 231 4983 rclarry aol com Mount Pleasant TX Jet Rally June 14 16 2012 Mt Pleasant TX www mtpleasantrc com OC Turbo Fest Early Summer Edition June 22 24 2012 Titusville Airport Titusville PA jacknbets aol com Thunder Over the Val
5. of scale speed operation Contrails A i j T i i j CGY a rae War he a Coy m3 are i A AWAY RRC TINE HRSA Wee a a i ry M a T Teg p d j rag i VE I i Before and after The stock gear is on the left Down and Locked converted gear is on the right Of course the next step is to complete the process of removing the air system by converting the door actuation and brakes to electric Other than weight don t see any reason why servos couldn t be used for the doors The Down and Locked sequencer has outputs for servos for the doors which can be used for valve actuation as shown in Dean s pictures or don t see any reason they can t drive the doors directly The only concern would be a stalled door resulting in a stalled servo have heard that there are electric brakes being developed in Europe which use brushless motors and the same principal as propeller braking thru a speed control and a battery as a load bank Converted gear mounted in the wing The cost of this conversion is pretty expensive right now but costs are settling down quickly Another flying buddy Kevin Forsyth is putting together a Boomerang Nano and has elected to install the new E Flite retracts along with a Kavan electric wheel brake so no air tank will be required at all Along with eliminating the need to have an air compressor to fly the Nano this should result in a nice weight savings as well The E Flight main gear unit PRESI
6. of the air up spring down variety then use Robart valve VR 186 think the case should be made for not using spring down retracts on our expensive jet models The spring in the retract unit must be strong enough to drop the gear and lock the unit and if the gear retracts forward do this against the on rushing air pressure On the gear up cycle the system air pressure must be high enough to raise and lock the retract in addition to compressing the down spring Personally feel this whole operation is a delicate balancing act and is not easy to achieve with high reliability Moving on to a system that utilizes gear doors of various configurations all doors open gear deploys doors stay open or a more complex situation where all doors open gear deploys and some doors close while others stay open you have a choice of a number of sequencers that can accomplish this task some electronic and some pneumatic First decide whether you want to go electronic or pneumatic and then look at what is available within that group Talk with other jet pilots or ask questions on RCUniverse have been using pneumatic sequencers by Ultra Precision Ontario Canada and have been extremely satisfied with their products and support WHEEL BRAKES Brakes are much like retracts in that there are different types and systems Most are pneumatic and most use the expanding O ring concept though there are a few that are disk type systems do
7. remember seeing one that was hydraulic and it had a disc system at the wheels The expanding O ring types are very reliable and can last a long time have never needed to replace an O ring Contrails 4 To activate the brakes a brake valve is required and like retracts there are pneumatic valves and electronic ones Once again like the pneumatic valves and have extensively used the BVM Smoothstop and the Ultra Precision UP 6 Both of these valves give smooth proportional braking and lose very little air They can be left in any position in the stroke without losing air this is important to me because like to pre set the brakes sometime during the flight and not all electronic brake valves will do this without losing a lot of air and possibly rendering the brakes inoperable OPENING CANOPY Opening canopies are cool things to have on a scale jet and my Yellow F 15 has an opening canopy which is pneumatically operated using a UP 3 valve to operate both the locks and the canopy itself You can see all the details of this design in my column in Fall 2009 issue of Contrails SPEED BRAKES Speed brakes are generally operated one of two ways pneumatically or with a servo Before you go with a servo actuated system it is important to make sure that the servo selected can do the job with an adequate margin before stalling and drawing high current A safer solution is to use a pneumatic cylinder which can be operated by a si
8. DENT AND WEBSITE MANAGER Keith Sievers 12926 Littleton Bend Road Jacksonville FL 32224 904 318 7171 pilot114 aol com VICE PRESIDENT Al Watson 130 145th Ave N E Bellevue WA 98007 425 746 9519 alenawatson msn com SECRETARY TREASURER Carol Brusa 7433 McCormick Woods Dr SW Port Orchard WA 98367 360 874 1517 bhaven2 earthlink net CONTRAILS EDITOR Greg Moore 790 Royal Crown Lane Colorado Springs CO 80906 719 576 3781 jetflyr comcast net DISTRICT Robert J Radford P O Box 1640 Plaistow NH 03865 603 475 2200 r radford comcast net Please add renew my JPO membership Name Address City Email Address Home Phone ntatives DISTRICT Il Len Mcintosh 51 Jesse Street Freeport NY 11520 516 623 1780 H 516 551 1819 C mcintoshl verizon net DISTRICT Ill Mark McCracken 180 Blackman Street Wilkes Barre PA 18702 570 760 6987 W 570 825 0713 H jpnepa hotmail com DISTRICT IV Lee Reightler 108 W Heather Road Bel Air MD 21014 410 838 4208 H clrmd msn com DISTRICT V Scott Harris 1311 Stratford Avenue Nashville TN 37216 615 479 7914 rcocd comcast net DISTRICT VI Lance Campbell 4601 Nathaniel Drive Columbia MO 65202 573 474 1588 the campbells charter net Membership Renewal Application AMA Number Cell Phone Contrails DISTRICT VII Fredrick Doc Gambino 530 Marywood Dr NE Grand Rapids MI 49505 4149 616 363 7390 H 616 485 6628 C
9. L Jet A 1 shell turbine oil KISS flight control system No big identification number in your back No music facing the pilot box Sponsor raffle 1 ticket per item per person 10 things 10 tickets per person Electricity for everyone Pilot tent big tent Tents tables and chair rentals available pricing later Overnight security on site and night storage Int Airport pickup service crate or person for those who came in plane NO visitors pit access so no flying interruption Attendance fee is 50 but if we reach our visitors expectation or get enough sponsoring we will partially or totally refund the fee There is still time for you to suggest new ideas and changes for you to be happy Please visit our web site for more information at www RcRallies com Jets2012 Pilots aspx Contrails Near the end of the flying season Dean Wichmann and a few of us headed up to Princeton for a weekend of flying in October to wind up the season Dean brought only his CARF CT 114 Tutor as he has found it such a solid and reliable flier over the season that he felt comfortable just bringing this favorite for the trip Dean s Tutor taxis out as Steve Neilsen takes a photo of Paul taking a photo of him with Dean s plane in the way During his first flight of the day after a great flight he found the right main gear was refusing to extend After several minutes of interesting maneuvers tr
10. M ECU was sent to Bob and returned in a short time even across a major holiday weekend My RAM 750 was mounted on a test stand and it duplicated the instant ignition ramping and favorable throttle response as noted with the FTE 500 turbine Consecutive starts and runs were achieved during varying fall and winter weather conditions here in the northeast was totally satisfied and look forward to logging many more flights with these older turbines Bob s contact information follows if you wish to have your ECU s for the older FTE RAM or RTI turbines upgraded to the new RO3B software It should be noted that no other changes are required to the turbine such as the RPM sensor or Hand Data Terminal HDT for this upgrade It is simply a plug and run conversion unlike other ECU upgrades which require turbine modifications The RO3B software can breathe new life into these older turbines that may be unused or on sale Bob Price 206 Breakaway Road Cedar Park TX 78613 E mail rjomodel aol com Phone 512 259 9232 Cell 512 897 9770 Contrails 8 Ohio Pennsylvania West Virginia Sitting here during no fly season am sure most of us are getting our birds ready for the upcoming season In the later part of last fall made a small change to my JetCat P 120 that will make a huge difference for me so thought would take a few minutes of your time and share my little change with you It started about a year ago while l
11. Mcintosh run from the main menu to test the starter motor fuel pump gas solenoid fuel solenoid and glow functions without having to initiate the start sequence There is also a detailed operator manual for the new version including the new functions settings and comparisons to the older software versions removed only the ECU from the model and shipped it off to Bob for the upgrade to RO3B upgrade He also replaced the microprocessor to a more powerful one with a lower threshold voltage to continue the start sequence even under varying ECU battery loads A closed loop governing the throttle response was incorporated in the upgrade also A couple of phone exchanges were made to verify my model setup and the ECU was returned within a week s time re installed the ECU and studied the User s Manual which applies to the RO3B software upgrade Several consecutive starts were performed with instant ignition smooth ramping no flames and a faster throttle response The teach function was done next and the FTE 500 operated flawlessly from idle to full power with no overshoots or high temperature excursions Totally satisfied sent Bob a second ECU from a low time RAM 750 turbine slated for scale competition jet This RAM was serviced by Carlos Villarreal and upgraded to a version at 22 pounds or 100 Newtons of thrust A C03 software version was installed at that time and wanted the RO3B to be similar to my FTE 500 turbine The RA
12. Newsletter of the Jet Pilot s Organization COMTANS Winter 2012 Volume 24 Issue 1 Shazam Kianpour s Fei Bao MB 339 launches itself into the clear blue Colorado skies Greg Moore photo Contrails 2 Keith Sievers FAA Update By the time this issue hits print events will hopefully have played out as outlined below On January 31 the conference committee that was working on the blending of the House and Senate versions of the FAA reauthorization bill finally completed their work and compromise legislation has been sent back to the House and the Senate for a vote This bill includes wording exempting model aviation from FAA regulation talked to Rich Hanson the AMA leader who has been working this issue at length and here is direct information from him The bill exempts model aviation from FAA regulation as long as activities are conducted in accordance with the rules of a community based safety organization The bill describes what constitutes a community based safety organization Without running through the entire list the AMA is the only organization that would qualify at this point in time This however does not mean that the FAA cannot pass restrictions prohibiting or controlling model operations in the interest of public safety So for example they could still prohibit or control model aviation in the vicinity of airports Once the bill is passed the AMA will continue to work with the FAA
13. S is expected to be released early this year so keep watch for it and be prepared to respond with specific issues and suggest alternatives Dave Mathewson has a good write up in the February issue of Model Aviation on how to respond Enjoy the photos and Spring should be just around the corner by the time you read this Please send me some input on what you would like JPO to cover Bob The Shockjet on its take off roll The Shockjet on a fly by Look at that blue sky T Contrails gt i a a al b E gt T PiS DEO Tia NEW OFTWARE FOR OLD TURBINES by Art ARRO This article describes the results of software upgrades to the ECUs of the older remote start RAM and FTE turbines These units are still viable although I ve experienced some persistent starting and running problems during the past several flying seasons here in the northeast The tipping point was traveling 11 hours round trip to a major three day jet rally to log only a single flight on Day 1 Afterwards the turbine never achieved ignition even after changing glow plugs ECU batteries gas canisters and types propane and propane butane mix and start parameters Everything checked A OK with spool up blinking green lights proper voltage gas and fuel flow and so on but no ignition which is the first step in the starting sequence It was so frustrating that even contemplated a return to glow powered ducted f
14. akes and so on Many of these problems could be avoided if the builder used quality components and tested as many of the system parts as possible prior their being installed and buried in the airplane A quality system should hold pressure for a long time with minimal leakage My airplanes can sit in the shop for weeks and in most cases months with little if any loss in air pressure All of our models require wheel brakes and most have retractable landing gear and sometimes doors of varying configurations Additionally some of the more sophisticated airplanes have speed brakes and opening canopies When it comes to choosing the system for operating your retracts doors brakes opening canopies etc we have a number of options There are three basic system types pneumatic hydraulic and electric Almost all of our models use pneumatic systems though a few are hydraulic and although electric retracts have been around for many years their application thus far has only been for small light weight models Several manufacturers are moving into high end electric systems that will be applicable to our heavy turbine powered airplanes and it will be interesting to see how these advances work out will limit my discussion to pneumatic systems since that is what most of us are using The first decision that must be made is how is the system going to be configured and that should be based on what features the aircraft has brakes retra
15. an amazingly smooth 1200x300 foot grass runway with virtually unlimited flyover areas and no obstructions Every type of R C jet from Habus to Phantoms to Ultra Bandits are flown regularly at our field We founded the club based on three simple premises be safe don t be a jerk and enjoy the hobby That philosophy was driven by the 100 years of R C experience we had between us including belonging to many clubs some of 9 Contrails Report cont d which were not always such a fun place to be part of It seems to be working because in our fifth year our membership approached 120 members of which 40 are turbine waiver holders A typical nice weekend day has at least 30 members and more than five jets out flying We do our best to promote the hobby and welcome everyone from first timer to Top Gun competitors Our jet event is in October as well as a giant scale event in August and we have numerous learn to fly days with club trainers throughout the year Every year we at Farview look forward to October more than any other time since that is the time that we host the Jet Jamboree What that means to us is that our extended family is coming to Hamburg to enjoy four days of friendship flying R C jet airplanes and hang out with us And let us say that after five years of holding events for helis giant scale and jets you guys have been the nicest most professional and safe group of R C pilots that we have
16. an jets Later at home decided to contact Bob Price the designer and engineer of all the ECUs utilized on the remote start RAM FTE and RTI turbines Bob listened to my starting dilemma and mentioned that he had a software hardware upgrade to the ECU which might help my situation The Electronic Control Unit ECU is the brain of all model gas turbines and this unit controls a myriad of functions including ignition spool up ramping acceleration throttle response cool down as well as a safety failsafe due to signal loss over temp and so on These functions are all governed by software and hardware designed into the ECU Field experience and knowledge gained during operation can result in software nardware upgrades to the ECU to improve the turbine operating characteristics including ignition and starting The software on my FTE 500 had been upgraded to the TO3 version with the AMA mandate for a 2 second failsafe shutdown and Bob mentioned that he now has a RO3B version with even greater capabilities This RO3B version includes intuitive changes to the gas adjust glow brightness and Start Pulse Width parameters in addition to improvement of the throttle response All parameters now increase in value with a higher number eliminating some confusion in the past There are new operator settable parameters to help compensate for density and starter motor types The new software also includes a selection of tests that can be Len
17. cts gear doors speed brake opening canopy The one system that must work all the time is the retracts Being forced to land the airplane with the retracts half down or fully up will most likely result in a lot of damage and could even FOD the turbine if you did not get it shut off before touchdown Failure of the other sub systems brakes and Opening canopy will most likely not result in a lot of Contrails Al Watson damage bring this up because on our expensive models it is good practice to have the retract system on its own dedicated air supply Put all the other sub systems brakes opening canopy and so on on a separate system Moving to the specifics of the various sub systems there are a number of decisions to be made about the devices to be used to achieve the functions required Let s look at these one by one RETRACTS If the retract system is simple one where there are no doors to open or close or one where the doors are attached to the struts then all that is required is a retract valve like to use the Robart variable rate valve VR 167 which allows you to control the up and down speed of the retracts like to set the system up so that the down speed is faster that the up speed since in the unfortunate event of a flame out you might be in a position where it would be best to keep the gear retracted as long as possible and a faster down speed will help in this situation If your retracts are
18. e for awhile urge you to go there and take a look at the new wearables The home page shows you photos of the shirt and hat we have available and how to order them They are a very nice quality and should last you a long time For a small extra charge you can have you name embroidered on the shirt if you d like lf you would prefer to go green and receive your full color copy of Contrails via e mail instead of hard copy drop Keith Sievers a note at pilot114 aol com and let him know In addition the current issue and many back issues are always available on line at the JPO website For those of you making your 2012 travel plans here are the events for the NW region Princeton Jets in B C Canada May 31 June 3 Idaho Jets in Parma ID dates not set usually in June Jets Over Whidbey Island WA August 24 26 Princeton Jets in B C Canada September 20 23 Hope to see many of you at these events Bob From the editor Many most of us use computers on a daily basis and as such are comfortable with the speed with which information can get to us and for many of us how our R C club s monthly newsletter arrives Last year we looked into printing the entire issue in color but the expense was more than the officers felt comfortable spending Since a full color pdf version is produced for the web site it is super easy for you to receive each issue between two and four weeks faster directly to your inbox whic
19. eather this year has been better than average with outings every weekend so far have been enjoying my BVM 80 inch Sabre and F 16 I m looking forward to taking the Sabre to Top Gun This winter s project has been a large Skymaster Hawk Typically order my jets white and paint them myself However being busy with other projects decided to pick a paint scheme and let them paint the plane instead so am aiming to have the Hawk in the air hopefully by spring For this issue have written a short how to article on retro fitting BVM EZ Air Connectors hope you find it helpful How To Retrofit BVM EZ Connectors Typically the BVM EZ Air Connectors are much less hassle than other air line connectors making wing installation much easier In fact have been using these connectors in all of my models since purchased my Bandit i To prepare for installation you of course need to obtain part number BVM5495 Next you will want to locate wing and fuse areas that are unobstructed and does not weaken the structure or the retaining bolt area previous photo 2 op mi i as es a Then you will modify the wooden area to fit into the wing Starting with the wing you will open an area only large enough for the fittings to protrude The next task is to attach the wing and transfer the opening onto the fuse with a marker Now remove the wing and cut out the marked area in the fuse fo
20. ever met That being said it is also important to remember that it is everyone s job to make sure that we have each other s backs when it comes to operating within the AMA safety guidelines especially in terms of speed With the pending FAA legislation which could potentially have a seriously debilitating effect on our segment of the hobby we need to demonstrate that we do in fact take care of ourselves It s winter here in the northeast right now and all we can think about is warmer weather rolling the field and flying jets If you ever have a chance to come and play with us please visit our website www farviewflyers net and give one of us a shout Be safe and see you all soon B O D Farview RC Flyers Canada District Report cont d The E Flight nose gear unit installed As for me am putting the finishing touches on my CARF CT 114 Tutor with an IQ Hammer 170 now have two o the 170s with three install kits and plan to hot swap them between my three jets The IQ Hammers have only three connections fuel communications and kero plug starte power and have the turbine memory settings in a chip in the front cover which makes this very possible Informa tion about their engines swapability can be found on line at ww teamaeroscale com iqhammer html Three jets you ask The Boomerang Torus is still alive and ell the CARF Tutor is almost done and just took delivery of a semi custom paint scheme CARF Ultra Lightnin
21. g My emphasis on this one will be simplicity and lightweight so no cockpit smoke Powerboxes etc just a 6014 receiver with an Orbit Powerjack with dual switches on dualA123 2300 s Paul s new Ultra Lightning pieced together Until next time CHEERS Paul Contrails Alabama male alors Georgia Mississippi Puerto Rico South Carolina Tennessee have been modeling since 1989 Started out with ducted fans in the late 90s and turbines soon thereafter have a passion for building and flying scale jets but also have my share of sport jets I m fortunate to live right smack dab in the middle of the country here in Nashville TN This allows me to travel to many rallies which my wife and find most enjoyable Being an automotive business owner for 20 years we find these weekend outings to be a great way to relax and spend time with our flying friends I m looking forward to being a part of the JPO Organization First and foremost would like to thank Craig Gottschang and Keith Sievers for taking me into consideration for this position will sure try my best not to disappoint am getting acquainted with some of the district representatives through email and look forward to any help when and where it is needed If anyone has any pictures or information to share please feel free to contact me and will try to incorporate it into my section I m fortunate to be able to fly almost all months of the year The w
22. h also assists the organization contend with the constantly increasing costs of postage All it takes is an e mail to either Keith or me for you to be added to our e list Greg No surprises here but not a lot of flying going on these days in Canada The notable exception is the guys in Edmonton AB who had some unseasonably warm weather in early January and got out to Tofield Airport for some flying For those of you familiar with Alberta winters this is remarkable As the New Year is here here are some announcements for upcoming events in Canada Princeton B C All those who have flown in Princeton remark on what a great venue and a relaxed atmosphere it is and many will drive a day or more to attend the events We keep it relaxed with lots of open flying at the two events hosted here Spring Warm up May 31 to June 3 Fall Gerard McHale Memorial September 20 to 23 Robin Lebond In Quebec has been working hard to plan a rally there and it is now official we will hold a Jet Rally at the Sherbrooke airport QC Canada We organized and planned everything to make this event fun for YOU pilots from June 1 3 2012 We will have 3 FULL flying days from 9 30am to 8pm without interruption Full newly paved airport runway 6000 x 150 foot Free Saturday night diner for all attendees Free coffee every morning Onsite camping and RV parking Restaurant on site Jet fuel and oil on site 100 L
23. ley June 22 24 2012 Woodland CA www wdarc org Big Apple Jet Rally June 23 24 2012 Brooklyn New York Jets over the Heartland June 28 30 2012 Winamac IN http winamacaeromodelers com whats_new html Jets over Kentucky July 6 15 2012 www visitlebanonky com events kyjets htm Capitol Jets July 13 15 2012 South Albany Airport S Albany NY www capitoljets com Liberty Bell Jet Rally August 2 5 2012 Donegal Springs Airpark Marietta PA www libertybelljetrally com Michigan Jets Annual Charity Event August 9 12 2012 Grosse lle MI www michiganjets com New England Jet Rally August 17 19 2012 Gardner MA www wachusettbarnstormers org Minnesota Jet Rally August 23 26 2012 Rushford MN CD Dave Dennison ddennison yahoo com Jets over Whidbey August 24 26 2012 Whidbey Island WA www wircsrc com CDs Al Watson and Bob Brusa Nighthawks Jet Rally August 24 26 2012 North Jackson Ohio Youngstown area http nighthawksrc com Home_Page html 30th Greater Southwest Jet Rally September 6 8 2012 HOTMAC club field Waco TX www hotmacrc org garrettlarryd aol com Route 66 Jets September 6 9 2012 Litchfield Illinois Municipal Airport CDs Roger Shipley and Jim Allen www route66jets com Treasurer s Report Beginning Balance as of October 31 2011 Income Dues Cash Check Dues PayPal Total Income Expenses Postage Stamps Office Supplies JPO Apparel Conference Call Contrails Total Expenses Ending
24. llowed by tack glue the fittings into the wing Caution Do not allow any glue to contact the fittings as they are to be a loose fit Install the wing and check for proper depth of the fittings It is very important to check the depth of these fittings they must fit exactly Now assemble the parts for the fuse and remember that shimming may be necessary to prevent excessive pressure on the fittings After a good fit is acquired tack glue the assembly onto the fuse then carefully remove the wing and reinstall it to check that your fit is accurate With the wing attached apply a fillet of Aeropoxy to the assemblies to complete the installation See Picture 4 Finally attach the air lines and test for leaks To this date have never had any issues of leaks with the fittings Scott Greetings everyone hope your winter building is going well For this issue have just a small item to bring up as many of us are going through an off season maintenance routine Tailpipes This is one thing that probably goes un noticed more than anything We are used to them just doing their job flight after flight and for the most part they do But when something goes wrong with this component it usually has tragic consequences So much heat being managed so close to fiberglass and wood that will burn up very quickly if exposed I ve included a picture of one of the tailpipes for my F 15 that has had hundreds of flights on it You ll
25. mple Robart retract valve USING QUALITY HARDWARE Most of the hardware that we use is of fairly high quality however most of the leaks that have found were in cheap items like plastic tees and elbows The biggest problem seems to be with the barbs on these products which are there to provide a seal within the line use only brass tees and elbows that have very well defined barbs and like the ones from MEM CO MEM CO manufactures a huge line of brass fittings of all shapes and sizes and you can contact them at www mem co com The best air line have found is made by FREELIN WADE polyurethane part 1J 157 which is 125 in o d and 063 in i d which comes in many colors and sells for approximately 7 00 for a 50 ft roll You can find them online at www freelin wade com The MEM CO tees that fit this air line sell for approximately 1 00 each If these companies do not sell retail to your state then you can ask who sells their products in your area am lucky to have a retailer who carries these products and they are located only a few miles from my home TESTING COMPONENTS cannot over emphasize the importance of testing as many of the system components as possible BEFORE they get installed in the airplane There is nothing more discouraging than to get everything installed and then discover that you are losing air and finding which is the offending component is not always easy Take a look at the Robart website
26. ng much flying thus it is primarily the building season for most of us hope you are all working on your next projects and getting them ready for the flying season have two new jets that have completed and hopefully will be able to do the maiden flights in late February The first weekend in March is Tucson Jets an event we really enjoy that we will be attending for the 4th consecutive year have a new Boomerang Torus that is powered with a Contrails 12 JetCat P120 and a PST F9 Panther with a JetCat P70 In the next issue of Contrails I ll publish some photos for everyone to see hopefully taken at Tucson Jets In case everyone is not aware Mike Mossbrooker is the new AMA VP for District XI Mike hails from Whidbey Island located in Puget Sound north of Seattle hope all the District XI members will give Mike their full support The elections for JPO for the 2011 officers for the odd districts and president are over and the incumbents have all been reelected except for District V Let us all welcome Scott Harris as the new District V representative At the end of this year we will be voting for the reps from the even numbered districts and the VP If you would like to be a JPO officer next year let your district rep Know your intentions It s really a lot of fun to be involved and does not require a lot of time There are only four articles a year to be submitted for Contrails If you have not been on the JPO websit
27. notice 3 problems with it Two places that have burned through and 1 place on the right side that has popped several weld points allowing hot gases through didn t notice any of these problems until 2 years ago at Jets Over Kentucky when noticed the slightest darkening of the white paint on the top of the plane back where the pipe splits initially blew it off as the day was about 100 degrees and maybe had set idling a bit long in the queue to take off But how many times do we realize in hindsight that our plane is trying to talk to us if we would only listen to the little warning signs After a flight or two it got to bugging me more and more and after sleeping on it pulled the pipe out the next day and was stunned to find holes in the inner pipe of the dual walled pipe Contrails Lance Campbell In the calls made afterward learned a few things First extreme heat is a bad thing For the year or so prior to this had had problems with the smoke oil igniting and getting the pipe VERY VERY hot There were parts of the pipe that had turned a dark blue from so much heat The second was that the burnt kerosene turbine oil smoke oil can have a very slight caustic action against the metal over the years In my case it looked like the extreme heat damaged the ever so thin stainless part of the metal exposing the under layer to the caustic action of the burnt chemicals The metal around the holes was really b
28. on a memorandum of understanding to outline these operational limitations Because there is still work to do with the FAA the AMA is asking the membership to take a low profile right now and let things play out The conference committee bill cannot be changed in the House or the Senate They can approve it or reject it as is Rich s expectation is that it will pass as this legislation is the culmination of five years of effort to finalize FAA funding and he believes the compromise bill adequately addresses the issues that have stalled the legislation to this point The President could veto the bill but there is no indication that this will happen He could also set the bill aside and do nothing and it would become law after 10 days if he does not outright sign the legislation Since the temporary funding bill for the FAA expires on February 17 Rich expects the bill to reach a vote early next week so that it gets to the President by February 7 at least 10 days before the expiration of the temporary funding In my view the AMA has done a tremendous job in protecting the interests of their membership while working diligently and professionally with the FAA and Congress would like to single out Dave Mathewson and Rich Hanson in particular whose leadership and support of the jet community throughout this process have been genuine and consistent We were fortunate to have these gentlemen in key roles throughout this process
29. ong would be time well spent Lance Lance s SR 71 departs for a demo flight at the JWM Alaska Idaho Montana Oregon Washington There are a couple of events worth mentioning that are happening in February this year The NW Radio Control Model Expo in Monroe WA and the FAA issuance of the Notice of Proposed Rule Making NPRM One is a local event and the other a national event I m writing this in January so by the time you receive this issue of Contrails in early March both events should be history The NPRM is obviously of great importance to all modelers but is especially so for turbine flyers If need be the AMA will be asking all modelers to participate in a letter writing campaign to respond to the NPRM If this has happened encourage all modelers to support AMA to protect our hobby sport so that we may all continue to fly in the national air space UPDATE ADDENDUM per the latest AMA update it appears the NPRM has now been delayed again until sometime this spring Check the AMA website often for continual updates It s that time of year for everyone to renew their JPO membership for 2012 and want to thank all those who have already renewed as we have received renewals from approximately 40 of the membership There is an application on the inside rear cover of this magazine or you can renew on line at www jetpilots org The weather in the Pacific NW during this time of year is not very conducive to doi
30. ooking for Powermax fuel had a friend of mine give me a few of his bottles that he would never use again add in the few had and thought was set for a while It turned out that the O ring in the top of the Powermax cans had dried out and started leaking Now am out of Powermax what to do had a few options First switched to the green cans of propane but did not like it This left me with option number two so went online and ordered the kero start upgrade from JetCat For about 200 and 20 minutes of work what a big difference When my package arrived it contained just about everything needed to convert the P 120 to full kero start A kero plug 5cm of Teflon tubing Festo fittings T connectors kerosene tubing and the gas plug were all the parts needed and come with the kit Mine was missing the 4mm Festo T which was not a big deal for me as like using the Festo 4mm Y instead one of which had on hand As for the installation it could not be any easier First cut the line about an inch from the nipple on the out side of the fuel pump There connected the Y as shown above and ran new tubing to the propane solenoid the line going to the fuel solenoid goes into the other part of the Y From the propane solenoid back towards the turbine followed the manual which you must download online making sure had the necessary clearance and then installed the new ke
31. rittle and could break or crumble in my hand Very strange considering the pliability of new metal Any pipe could be at risk especially if you have a tailpipe fire or ever ignited smoke oil in the pipe It s not really a hot start but a wet start that has the dramatic and very quick rise in temperature It is this rapid heating and subsequent quick cooling that will cause the metal to fatigue and become brittle over time The main key to look for is the color of the metal If it s straw amber color that s ok If you ve had a good tailpipe fire or two and it s got places that are a dark blue on it you ll want to keep a close eye on it over time Another way you could have trouble is if you have a multipart pipe that has any way of segmenting apart in the air saw a couple planes have this issue at the Jet World Masters this year Unfortunately one of them was a gorgeous scratch built Hunter We saw it fly by with about 8 10 inches of the pipe sticking out the back It had separated about halfway down its 4 foot length and as it flew by was spewing hot exhaust gases into the aft fuse compartment Half a lap later before he could get it back on the runway the elevator control wiring had melted and the subsequent crash and fire totaled the plane Just take a few minutes while watching the snow fly this winter and add to your inspection list the tail pipe Verifying it all looks good and all the spot welds are holding str
32. ro plug The Teflon tubing is to be installed onto the kero plug and must be at least six inches long as it will resist heat better used a Festo connector to connect the fuel line coming from the solenoid to the teflon tube In the kit there is a small black plug which is used to plug the propane inlet on the P 120 This conversion is only good for V6 and newer versions of the ECU The ECU must be changed to the kero start function which is very easy to do Just follow the steps in the manual hold a few buttons on the GSU and turn on the receiver After did that had to purge the fuel line and now it is ready to go so proceeded to fire this up for the first time without using propane Radio on receiver on full trim up with full throttle and the sequence started with my P 120 coming to life Needless to say will be converting all my other engines over to kero start If there are any projects building tips pictures of your aircraft or events or a jet related story you would like to see in Contrails please feel free to forward anything you have to my e mail address jonepa hotmail com A short time ago the Board of Directors of the Farview R C Flyers asked me to pass on a few words to the Jet community Fellow jet drivers we would like to take this opportunity to introduce ourselves we are the Farview Flyers R C Club in Hamburg PA Five of us founded the club when this flying site became available to us Now we have
33. www robart com click on the support tab and look at the Air Leak Troubleshooting Guide This guide will give you detailed instructions on how to test many of the components of our pneumatic systems tanks retract cylinders and valves Do not forget to test every tee fitting by putting a short piece of tubing over two of the barbs use the pump to pressurize the part and check under water Here are a few of questions that frequently get 1 Do need to add lockwire to all of these tubing nipple joints No have never used lockwire and have never had a line come off of a fitting but remember that use brass fittings with sharp barbs 2 How do get the tubing off the fitting Under no circumstances should you use an Exacto knife This will score the fitting damage the barb and cause a leak Cut the tubing an inch or so back from the fitting hold a lit match under the tubing fitting for one or two seconds this will soften the tubing so that it can be easily pulled off with a pair of pliers Too much heat will melt the tubing and leave a mess 3 Why do my retracts not deploy and retract at the same time Let s talk about the two mains You have an up line and a down line coming from the sequencer These lines each terminate in a tee fitting and you then have a line going to each of the main retract units The lines from the tee to the right and left retracts must be the same length otherwise the retracts will
34. ying to coax the gear to show itself and with fuel running low Dean decided to go ahead and land with the just the nose and left main After a flawless approach and despite some pretty rattled nerves Dean managed to set the Tutor down on two wheels and then drag the right wingtip along the runway and remove a significant chunk of the wing aileron and flap The aircraft was otherwise alright but Dean was noticeably disappointed in the outcome and on the first flight of the day Dean is a meticulous builder and has been around jets for more years than most With the aircraft being new last season lack of maintenance was certainly not the cause After some inspection of the gear and the connections Dean determined that one of the Robart quick connects must have not been properly inserted and drained the contents of the air tank during the flight This lead to a whole conversation about the reliability of air systems and the overall frustration when the air system goes down So after returning home that weekend Dean promptly got on the internet looking for a solution He found Down and Locked and arranged to have the existing Behotec retracts sent to them for conversion to electric After a few weeks the converted gear was sent back to Dean complete with their sequencer unit to aid in door actuation Dean has now completed the install of his Down and Locked conversion and has indicated that the operation is perfect with the added benefit
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