Control Line: Aerobatics

rFJu Aerobahcs El Wynn Paul IF THE AMOUNT advance prepara tions already completed precision aerobatics event 1977 Nationals writing January 29 indication Nats should dream com petitor official spectator alike May wives too Event Director Arlie Preszler already has assistant director several tabulators eight 12 judges lined up well logistics equipment supplies orga nization appearance judging pilots meetings etc PAMPA certainly has good man run Appearance judging Open contest ants will little different year should exciting experience Accord ing Arlie its going done Preszler style will bring stunt planes together once judging Heres will work Open stunt competitors will check Nats Main Hangar no later 700 pm Tuesday August 9 airplane hand ready ap pearance judging Arlie assistant director Lanny Shorts will check prop er AMA identification airplane re ceive special handling instructions get pilot sign certificate stating builder model airplanes usually Open Stunt 60 80 will placed large roped off area similar RC Formula toys pilots will draw circle assignment flight order next days Open Qualifications next two hours Arlie Lanny will play musical airplanes place air planes groups according number appearance points According Arlie anticipated time two hours 700 pm 900 pm should cer tainly improvement over some years took up six seven hours processing thing certain will impresshe array beautiful airplanes photographers will have ball Missing Persons order clear up some mysteries nearly completed History stunt-1940-1976 writer seeks help locating two stunt champions 40s Robert Bob Daily won open stunt division 1949 Na tionals first utilize I-beam wing construction origi nally Ferndale Michigan W Howard Thombs won Walker Cup 1949 flying according George Aldrich profile biplane about 12 degrees engine offset Thombs originally Warren Ohio later supposed working aircraft company Texas Any information abouts two stunters would ap preciated Aldrich Handle old Nobler man George Aldrich has come out new control-line handle should catch immediately Magnum handle ready shipment after some delays production Weighing 37 grams Magnum seven grams lighter popular E-Z Just Hot Rock feather weight made polypropylene comes six colors red yellow blue green orange black handle molded replica used George won four National Stunt titles promise say grip molded hand felt quite comfortable writer certainly big enough large hands heavy braided steel cable adjustment screw bottom handle highlights handle Adjustment quite simple once set will come loose drift Line separation same E-Z Just four inches Priced $275 could answer stunt fliers need very light handle quick adjustment Order George Aldrich Products Inc PO Box 1426 Mission TX 78572 Telephone 512-842-3379 Engine Rework has writers policy attempt list special products engine rework specialists come across board effort let stunt fliers have chance sample products services No guarantee goes Its up individual evaluate products services fered out west comes T&L Model Continued page 96 30 Model Aviation Max 35-powered Genesis Don Schullian has foam wing adjustable controls via hatch top fuse Don currently Athens Greece Tom Lays 010 stunt plane has 18-in wing 1/4 oz tank 3 x 2 propeller Weight 3 oz Photograph Max Binder PAM PA booth First Southwestern Trade Show Dallas Texas last January 1516 Jerry Pilgrim left Joe Musumeci Sr GOOF PROOF TRIM SHEETS iron-on goof merely re-heat lift re-posi tion 5 x36 red e ow ge aluminum e drab dayglow orange low yellow VERITE 2779 Philmont Ave Huntingdon Valley Pa 19006 Fill tank through feed line means removing tubing needle thats OK since tank will require refueling during course match tank full put tubing back needle pinch tubing off clothes pin etc style tank likes siphon will quickly flood engine helper holding plane remove clip line start motor Now comes strange part style tank needle must set very lean ground lean engine sags almost Just lean out until fingers say Stop lean out bit youll close plane launched go level few laps engine goes bit rich its probably OK far setting concerned plane level flight check sure flying wings level youve got warp Its up whether try maneuvers warped wing best wait until warp removed plane straight go ahead wring out Make mental notes flies turns OK insides kind wide outsides remember adjust linkage suit plane straight will hang out lines very well have way too much control So ad just linkage give more travel until plane bogs down slightly turns back off little give tightest fastest turns possible plane works very well wig gly maneuvers now gaining popularity West Coast So try flying rather jerky fashion doing lots rever sals direction quick succession practice flying try force myself never complete half loop let alone full loop both easy maneuvers someone follow through never lazy 8this maneuver extremely easy follow unless can bottoms foot off ground watching plane case lazy 8s great way suck oppo sition ground first flight also keep track engine runs cuts rich out side loops too rich tank still has fuel 2 oz engine quits engine completely broken well broken-in engine previous ly suggested props tank made per plans pictures 10% 20% fuel right needle setting can expect super runs engine will run con stant speed through maneuver can dream up setting will go lean end tank CL Speed/Snyder continued page 29 market new K&B 29 Super tigre 29X both super engines have rear exhausts dont use minipipe can get exhaust out airplane Its imperative rule proposal modified include minipipes otherwise newly-designed en gines ones appropriate event will able used au thor finds suggested rule change #64 minimal value other weight restriction safety purposes comments invited sincerely hope concerned fliers have notified respective district reps presenting objections sugges tions Its too late rule passed addition might bad idea have 24-month moratorium rule changes applicable control-line speed order obtain status quo allow us evaluate current position would appreciated following formation would provided read ers order assist column pre senting pertinent facts 1 Name address phone number editors currently producing arti cles circulars UC speed informa tion 2 Photographs special designs pro pellers handy hints incorporated column produotrviwproductrviwprodoctrviewproductreviw Streamlined Wheels Made low density tough resilient polymer material will stand shock abuse high-speed landings wheels ideal competitive racing events two sizes1A 1A diameterthe fuel proof material molded onto precision machined aluminum hubs Weight lowdrag wheel 1/5 oz smaller size ideal RC CL especially Goodyear larger wheels good such events Rat Race Big Goodyear Slow Ratalso meets rules Midget RC Pylon Product brochure avail able 13c Wheels may purchased mail $195 per pair postpaid Kustom Kraft manship P 0 Box 2699 Laguna Hills CA 92653 productreviewproducireviewproduvtreviewproductrsviw 3 Sources obtaining Monoline equipment speed pans fuel switches tuned pipes fiberglass propellers 4 Engine specialists interested ob taining engine rework well list customers have winners Nationals last two years using engines Last least daughter Re bekah Jr age 12 has demanding equal time 76 Nationals report won first C-Speed record flight 16477 mph first B-Proto record flight 13235 mph promise wont ever bring up again Flash Just received old friend Joe Klause Kustom Kraftsmanship P 0 Box 2699 Laguna Hills CA 92653 four pairs new racing wheels patterned after old Dons racing wheels have become impossible find light magnificently put gether Sam Snyder 1041 E Pico Fresno CA 93704 CL Aerobatics/Paul continued page 30 Specialties Tom Lay offering re work OS Max 35 stunt engine states will modify piston head venturi needle valve hand lap piston sleeve precision assemble engine Oneflip starts smooth steady power will result Ill have old style OS mufflers available soon Prices $1000 re work new engine plus postage Used engines reworked $1000 plus parts postage Address T&L Model Special ties P0 Box 6052 Torrance CA 90504 Incidentally Tom built 010 stunter 96 Model Aviation shown picture Y 0 Props veteran stunt ers swear Y 0 Props available Bills Mail Order Hobby 503 West Astor Lees Summit MO 64063 Telephone 816-524-1634 just some sizes offered 10-4 5 6 7 11-4 5 6 7 12-4 5 6 7 also have laminated props 10-6 11-5 11-6 12-5 12-6 might want Bills also has very good supply old model airplane magazines anyone col lects PAMPA Booth First Southwestern Modders Show Texas PAMPA members led Jerry Pilgrim got together very fine display first Southwest ern Show did very short notice Five stunt ships displayed represent ing classic semi-scale futuristic jetstyle approaches stunt Lee Uberbacher gave demonstration stunt pattern frigid weather January 15 16 Dallas Texas Al Rabes slide collection continuous display Ron Hardings Bearcat Stunt ship won first place finish static display Also hand help Bob McKinney Dave McClellan Dorsey Brewer Bob Gieseke Joe Musu meci Sr Joe Jr According Bob Gieseke Pampa booth biggest hits show display grew original table 10 X 20 ft area four tables Bob said major credit should given Jerry Pil grim putting display together Half-A Standard Design Stunt Event Larry Renger Keith Trostle have dis cussing possibility establishing aerobatic event Half-A would governed rules design build ing features According Larry consider Quickie 500 Quickie 200 racing have stimulated rather hurt sophisticated events think good simple Half-A single design aero batics event would good thing stunt design Standard Half-A aero batics airplane would probably along lines Engine muffled Tee Dee 049/ 051 wing built-up straight chord coupled flaps optional 200 sq total fuselage simple box square front end using RC-type radial mount tank no regulations controls no regulations weight 10 oz minimum 13 oz maxi mum control lines 008 steel cable 35 ft long competition event would consist either AMA novice pattern regular pattern appearance points Perhaps AMA novice pattern utilized other event fliers would take swing stunt Any com ments venture should directed Larry Renger 1774 New Hampshire Dr Costa Mesa CA 92626 Incidentally Cox Manufacturing has NEW R/C B HYDRO RECORD 1/16 MI Straightaway October 10 1976 Dandy Trail Lake Indianapolis IMPBA sanctioned meet 6114 mph Best one-way pass 63202 mph NEW R/C B HYDRO RECORD 1/3 MI Oval October 10 1976 same location IMPBA sanctioned meet 3521 mph May1977 97 hL dwaro w riugney Jr estaDlisned two R/CHydro IMPBA Records 20 Hughey - powered K&B 35cc Marine Engine Our congratulations Edward W Huohev Jr nn COMPLETE THIS FORM AND AlTACH MAILrNG LABEL FROM RECENT ISSUE ic US KNOW WHERE YOU ARE GOING move please let us know advancesix weeks re quired change address Attach current MA mailing label check appropriate box mail Subscription Dept Model Aviation 815 Fifteenth St NW. Washington DC. 20005 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION El CHANGE OF ADDRESS Non-AMA subscription rates $1200 tbr 12 months canada United States possession elsewhere $1400 MA IA ESS CITY/STATE ____________________________________________ ZIP _______________ MODEL AVIATION 815 FIFTEENTH ST. NW. WASHINGTON DC 20005 BOX 511E HIGGINSVILLE MISSOURI 64037 agreed again sponsor unofficial Half-A precision aerobatics event 1977 Nationals Junior Senior Open competition will take place using com plete AMA pattern minus appearance points probable date would Satur day August 13 before after Walker Cup Flyoffs Engines limited total 051 maximum no requirement builder model rule however same plane may flown pilot Back-up model may used per AMA rules Airplanes must have iden tifying numbers per AMA rulebook ex cept numbers permissa ble event has developed popular lighthearted unofficial contest last years entry 25 spectator enthusiasm high Its worth watching fun competing event information PAMPA preci sion aerobatics write Wynn Paul 1640 Maywick Dr Lex KY 40504 Race/Kilsdonk continued page 53 next strategy involves pit race flexibility depends fuel capacity Since Rat Race Slow Rat pit required 70-lap races two pits required 140-lap races must capable least 47 laps per tank set models up go about 65-70 laps per tank Goodyear pit required 80-lap race three pits required 160-lapper requires least 40 laps per tank usually have capacity 60-65 laps per tank ideal race would have No 3 team pit first followed No 2 No 1 same lap intervals avoids possibility line snagging usually doesnt work however due differences air speeds Depending differences air speed fastest model will usually pit first followed others proportion relative air speed pilot usually has predetermined signals pit man will signal Like 40 80 120 laps Goodyear 4595 laps Rat pilot can size up strategy during race observing other models discussing other pilots model set up similar have about 20-lap cushion pit can used advantage pit either before after others right pit man has signaled pit pilot has determined best time should initiate shut down tripping shutoff slow MORE wi/A 13orn dIpw same powerYELLOW ~eteeteduePltCYX e~JBddC e\Wet'Tao 354304 Blade63 6-4354 Pusher74 76 78 504 [v32][b-1-10-1-10]]5ZSeach84 86 88654 Z 5~435/4 97118 6364 10-4 106056 8-685411-4 11-611-81 9-6106 1 3 Blade Tractor 55-3 5-4 6-36-4 504 3 Blade Pusher 6-3504 NC 12-4 T2-5 12-6 150 ORISH BROS ST JOHN INDIANA 46373 model down should give several full-up full-down controls use models wing air brake takes lots practice Start slow keep decreasing distance slow model down gradually What try to initiate fuel shut-off about before pit area No 1 pit loca tion can use wind help out No 3 pit position doesnt work well windy days wind will tend accelerate model just before landing pit man must now catch model refuel restart engine release lot time lost can under five seconds dependably 1975 Nationals Goodyear models finals very close air speed Yet able finish ahead several faster models because total pit stop time includes shut-down landing addition pit stop takeoff back air speed An excellent total pit stop includes time lost pit stop should less 15 seconds Have someone time though get one-flip start youll surprised amount lost time Another thing concentrate consistency Remember have make excellent pit stops time just good model now airborne again team must again prepare next pit stop entire sequence including new strategy based changes race must repeated again Actual contest experience much better realistic practice field So feel youre ready go out enter some contests potential hazards unforeseen circumstances contest will probably never encounter However experience experience lots practice will make winner CL Navy Carrier/Perry continued page 31 required release can run through wing throttle arm com mon method use flap movement operate release outboard aileron Fig 3 illustrates method used quite few Carrier medelers A bellcrank can used horns mounted top flap aileron connecting rods will tension can smaller diameter Fig 4 aileron release shown Leon Ryktarsyk As flap falls allows tin-stock plate rotate thus releasing aileron deflected spring rubberband lightest simplest method aileron actuation 98 Model Aviation SERVING THE R/Cer SINCE 1953 Since weve business 24 years can sure stay offer service customers years come youre interested what have offer send $1 complete catalog Add $50 1st Class mail return [AU II Em