Radio Control Soaring Byron Blakeslee TOM THOMPSON Albuquerque F3B sistant team manager fund-raising chairman dropped over Christmas holiday give us latest team news may have heard team Steve Work Rich Spicer Steve Lewis will represent USA against about 29 other countries summer Os nabruck West Germany Olympics RC Soaring competition will July 24 through August 2 Fliers will world-class equipmentboth aircraft radioswill state-of-the-an Moneywise F3B World Championships dont rank Americas Cup effort just important us Sailplaners Cup New York Yacht Club Just Cup syndicates raised much funds public team needs support great Sailplane community make best possible showing Germany Donations will get some nice souvenirs $5 USA F3B pin flying hat $10 USA F3B team patch infor mation sheets teams planes $15 both above course donations larger smaller shown above very welcome addition souvenirs donors names will entered sweepstakes drawing some substantial prizes donated industry sponsors prize list isnt finalized Im sure will plenty goodies won Well print sponsors prizes soon info available Please send check F3B Soaring Team Box 9328 Al buquerque NM 87119 aircraft scene Tom said Steve Work received five new Comets Peter Muller West Germany Two actually belong Steves practice partner Phil Renaud also team assistant new Comet bit smaller 112-in span 118-in Kings Steve Phil flew team selection finals can see photo Comet has conventional fuselage fairly large canopy-style cutout What unusual nose cone slips over fuselage make very sturdy assembly fuselage cross-section oval unlike normal circular section used slip-on nose cones Other construction details fuselage made Kevlar stabs hollow-core Kevlar wings foam carbon-fiber spar %-in-diameter carbonfiber joiner-rod 1mm German pine sheeting Quabeck 20 airfoil slightly thinner 9% King 10% Total unballasted weight 82 oz giving wing loading 118 oz/sq ft Steve estimates Comet will about second faster King Speed task will also have L/D well Dis tance task High-tech stuff Important news Members SOAR club Chicago Dan Pruss club have voted honor Dans contributions great hobby/sport establishing permanent trophy awarded annually AMA Nats Soaring event will known Dan Pruss Memorial Team Award SOAR endowing very gene rous $2000 Additional contributions inter ested individuals also welcome permanent trophy will reside AMA HQ Winning team members will receive plaques awards ban quet following Nats Details winning team deter mined will announced shortly SOAR new team award will certainly add interest excitement Nats will excellent complement established awards Hi Johnson highest score event Lee Renaud highest total score three Dura tion events Sid Axelrod best per formance Junior Senior class B Im sure Sailplaners closely studied Atrix construction article Harley Michaelis ap peared Decembers Model Aviation beautifully-thought-out design undoubtedly WiI Beyers sends two photos Three planes L 1 5-year-old Nelson Ka-6 jet-lIke VelocIty Squared E-Racer two Penetrators R Formula I-style Slope Racers belongIng Pete Marshall Bob VanNote flies good looks wno nave started Atrixor considering onewill want some updates available Harley update also explains use two indi vidual aileron servos altemate stab construction full-sized computer-generated airfoil tem plates rib-making Airtronics 75P Module radio owners will get much good information optimum setup description Harley has written says man ual contains errors does begin fully tap potential radio system bargain too Send SASE plus another stamp help reproduction costs Harley 26 South Roosevelt Walla Walla WA 99362 objectives column try encourage interest Scale Sailplanes happy receive letter photos Bill Liscorob Carlsbad CA think would classify Scale nut have flying RC Gliders 17 years building Scale Gliders past four years also have private-pilot-glider rating Master hang-glider rating Ive built flown full-scale Moni motorglider 1986 built nine quarterscale Gliders have four lined up year Almost RC flying has Slope Soaring Ive built flown few Power models am definitely spoiled simplicity Slope Soaring set up winch fly would toss-up between Power Glider fly ing seven Scale ships have now cant think would risk winchlaunching landing field longish grass throw off hill bet Anytime lack popularity Scale Soaring country lack interest perhaps due format contests have hang-gliding experience plenty good Slope Soaring sites across country have Scale Sailplane Nats Slope site Scale ships flying contests organized large sometimes 40 Model Aviation Bill Liscomb loves quarter-scale Sailpianes photo above launches ASW-1 5B off cliffs atTorrey Pines CA Craft weighs 8 ibstays up light ones Below shows Rowing LS-4 Its all-fiberglass weighs 13 lb indeed think Bill has offered excellent idea Next need suitable site group organize wants write offers Seriously Europe run lots Scale fun-flies/contests slopesso no reason shouldnt able put something Lets hear about Wil Byers Richiand WA wrote report Slope Soaring alive well great Pacific Northwest Wil said picked up model ing father began Soaring Don Burt Bunny 1976 interest models revitalized after very nasty hang-gliding acci dent Thats thing like about models can have terrible crash nobody gets hurt Anyway Wil organized first Mid-Columbia Slope Soaring Fun Fly 1979 says have 45 participants over 80 air planes Wil club also put two AMAsanctioned Slope races last year will again sponsor 1987 Wil goes say Slope racing new NW Soaring com munity such just beginning recog nized alternative Thermal competition Tn-City Soarers TRICS club has much support NWSS Northwest Soaring Society get events publicized fine newsletter hopeful will see fliers involved Slope Soaring affiliated group come out fly us regular basis would say primary goal club People come fly us four states also Canada pilots mixed bag range familiar names such Tom Brightbill airline pilot Canada avid flier fliers Continued page 138 high quality totally glazed ceramic engine mug must modeler standing 51/2 inches tall large 10 07 capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per order $695 o CA residents add sales taw Kreft Engines Testorl McCoy Talpan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available RIL Industries ox 5654 dena CA 91107 Phone 818 359-0016 ___________________________ Lets enjoy outdoorsin comfort III weuYour Little World Comfort Hot Burning Summer Days Convenient Size Portable Shade Thats Quick Set Up Change Instantly Give Protection Weather Size 72x 120 60 sq fi Add units double triple etcthe size Porte-Shade available lAdd usits can used trailer awnings patio covers etcl PortaShade convenient size has center psie mere useable space can straddle picnic table endel airplane er small vehicle canopy streng heat reflecting waterpreof material white no tsp aidel unique tear preet csrner ticinga no grommeta stands almost 7 taIl atmog V aluminum poles can stand worm er piny under comlert wind resistanttested te 40 MPH can adiusted easily tilt against sun can set up vertically wiodboesh Set up very quick pemnn can Sin sbsut 5 minutes Mastesad nina Manavordamsportsman Model/PFR5-60 $3995 $3 uss sealer Inqairies wandEconomy Model/EPFR4-59 $3295 $3 5P5 THE 4M CO Dept M 0549 slsawnee Dewey OK 74039 iV anal nra 5342244 April 1987 41 US F3B Assistant Team Manager Tom Thompson Above holds Steve Works new Cometa German Import Steve will fly World Champs Comets removable nose cone Below slips over front fuse 1/32 scale plastic model kits Golden Age classic aircraft Colorful highly detailed miniatures Send $2 fully illustrated cata log other kits accessories MA DEPT 81 PAWNEE ST NLLA~S SAN MARCOS IOS CALIrORNIA 92069 fast Scale models mind REPLACEMENT MODEL PARTS FOR MOTOR MUGTM V7Fvr PAN FUNG FT PAN ROLIfl PLAN 819 FThGLSSS CWLS$20 Arno PXi N PARTS PO BOX 939 OJkJ NY IA760 32 ADD I2%WTTWWY Aim BX tang begin shudder everything stopped flying right front No problem plane though just apply power continue nothing happened just slight pause climb out gallery behind agreed other airplane would have crashed least six times light wing loading forgiving nature airplane will let get away things might kill heavier model few weeks ago very windy day couldnt resist temptation try hov ering model wind ground speed dropped zero could make model rise fall playing throttle otherwise sat motionless just over head Midget Mustang such versatile airplane really does makes flying fun Scale Doc/Kruse Continued page 39 model its drawings scale ruler omitted loss points will dis astrous Color Markings Documentation have separate authenticated state ment color markings paint chips photos specifically included show color markings place include things Also include some sort labeling system brief commentary intent purpose display judges will know what youre trying show Photos Other Supporting Matedais last area along threeview probably critical far securing good static points photos displayed should aircraft have modeled Photos support efforts should discarded unless some specific logical reason clusion possible brief caption line under photo also useful help judges see what want see Good crisp black-and-white photos no smaller 4 x 5 very useful Color pictures better unless colors chosen aircraft documentation material should placed sequentially binder some sort prefer three-ring loose-leaf binder preferably oolor complimentary model Since several people will hand ling material during course contest season its best place page inside clear acetate page protector avail able office supply house scale ruler should also placed within binder possible should attached some way prevent being lost made card stock holes may punched will fit three-ring binder plastic ruler try attaching Velcro inside cover binder As stated FAT RC CL Scale rules Proof scale responsibility contestant Hopefully exercising same diligence collecting organizing packaging scale documentation typically evident construction model builder will find himself winners circle far consistently Good luck next Scale project RC Soaring/Blakeslee Continued page 41 also outstanding builders creative ideas such Ken Stuhr builds some beautiful fast models comparable anything coming Out Europe Jim Riggle Portland currently dulging himself Marks Models -scale ASW-20 project should beautiful sight see could go on know clubs have individuals never hear about wish did hill heights vary 600 1100 ftwith wind direction being little conse quence least site should work conditionall within 15-mile radius Inciden tally over Oregon coast spec tacular site known Cascade Head 1295 ft high looks directly Onto ocean lift dies landings can made face bill quite nice grass Anyone wanting fly us can contact 632 Meadows F Richland WA 99352 Thanks report Wil sounds like slopes just what Bill Liscomb looking Wil sent quite few photos letter taken top slope shows huge absolutely beautiful valley down below Unfortunately lacked sufficient contrast print magazine Wils other photos show range plane types can flown slopefrom /4-scalers Thermal ships jetFokker D-VII VK Model Aircraft PO Box 3007 Aurora 1160505 312-357-1883 ZMA Name Street Addreas City StateZip 138 Model Aviation WEBRA NOT Clowning around Anymore UNITED MODEL PRODUCTS has appointed exclusiveengine distributors Only UMP brings full line raceproven WEBRA engines backs top-quality commitment service WEBRA UMP way should because comes choice engines serious J/4I AND UMP division United Model Distributors style semi-Scale designs Formula 1-type racers look just ticket Slope Pylon Racing fact what see British magazines rage Slope ships over sorts semi-Scale takeoffs powered planes include jet fighters bomb ers airliners new orga nization called oddly enough Power Scale Soaring Association putting out news letter devoted Power Scale Soarers can imag ine seeing jobs air would great fun Dr Carl Mohs sent following summary Madison Area RC Societys National Sail plane Symposium meeting getting things Sailplaners schedule fall Proceedings Symposium will available later summerwell let know See February 1987 column info 1983 84 85 Proceedings fourth annual MARCS National Sailplane Symposium attracted 106 Sailplane enthusiasts came Madison WI two-day meet ing November 1st 2nd 1986 Early arrivals treated tour Air National Guard facility learned new respect fly AlO aircraft roll rate reproduced simulator fantastic Saturday meeting opened talk Walt Good set pace next two days learning fellowship Walt disclosed re search early history model RC flying some fascinating stories first model successfully controlled Germany CD Bob Sealy followed report F3B team selection finals set stage panel discussion future F3B US conducted John Grigg assisted Terry Edmonds Bob Sealy symposium participants showed interest possibility run ning F3B-like contests would build interest multi-task events help prepare con testants advancing full international F3B-type aircraft Warren Plohr Peter Waters brought us up date frequency situation frank discussion situation exists now will future full spectrum contests local club event Nationals Intemationals covered panel discussion led Jeff Troy CD Soaring events 85 86 Nats assisted Bob Sealy Cal Posthuma 35 CDs audience theme espoused Jeff applauded organizers serve contestants atmosphere goodwill result will hassle-free contest has certainly case Nats recent F3B team selection finals Tom Brightbill gave very well-received talk flying advanced straightwing models popular Northwest gaining popularity elsewhere thoughts development proper attitude contest-winning hit home us among us hasnt mentally given up after bad flight early contest Maynard Hill gave outstanding talks meeting electrostatic autopilots brought down house word pictures physical difficulties setting world records Power Duration Willy Pfister Gary Tschautscher made good use German heritage bringing us some latest information German Sailplane experiments documented Ger man press two days wound up aeronautical en gineer Joe Wurts bringing us expertise use composites great how-to discussion Whip Antenna Gives Hidden Performance Gone forever nightmare heli-flier dreads stepping 3 foot tenna ripping off front prized chopper just its ready fly Base loaded short WHIP ANTENNA giveshidden performance Less 7 long can mounted project front helicopter inside canopy virtually invisible OOR-AM MOOE PRODUCTS 23961 CRAFTSMAN RD CALABASAS CA 91302 818 992-0195 218 VERNON ROAD GREENVILLE PA 16125 412 588-1321 April1987 139 Realize Genuine Improvement RC Flying Geometron Transmitter Support Completely frees hands control sticks emely comfortable use wear Put levers nothing way Allows Concentrate take off instant hat No bets tying because dont have hold transmitter whilebuckles straps no cord around neck operating controls Provides full tour corner stickWearing support transnilter stays place mobilityyou cany plane Impnve accuracy stick movement because Doubles ideal ground support offers perfect transmitter held stable accessibility keeps transmitter oft ground Adjusts Iwo-stick Tx modifications adapt- Ruggedly built heat treated aluminum finished able single stick Tx easy change support plate heavy duty anodize AssefTibled stainless Simple adjustments arm length shoulder size steel fasteners Designed constructed extended Transmitter secured safety catch can removed use 695O aced second yet cannot accidentally fall Out PURCHASE ALL THREE ITEMS $995Q $99Q See dealer order direct GEOMETRON CO INC 12 INGLESIDE ROAD LEXINGTON MA 02173 617 861-6526 PROVEN TO BE TREMENDOUS HELP FOR BOTH BEGINNERS AND EXPERTSI PIus 51 50 s5ppng CO 0 200 eefeosa cash money order ori charges 8piy o0y COsSnefiha us Mass waidena add 59 LCD TIMER/STOPWATCH Counts up down preset hold additive features Time out sounds alarm auto shutoff Easy read outdoors lithium baSery 21 95* PROTECTIVE BAG Made space age aluminum costed nylon Ref ects suns heat protects Ta dirt st special fast acting closure ONCE YOU USE IT YOU WILL NEVER FLY WITHOUT rn vacuum-bagging technique producing foamand-glass wings meeting demonstrated once again wonderful feeling camaraderie exists within Sailplane movement willingness speakers bring knowledge share others symbolic best hobby Participants came four corners country enthusiasm shown old new friends met heartwarming success first four symposiums has prompted MARCS schedule fifth dates will October 31 November 1 1987 get mailing list information drop card Dr Carl Mohs 5024 Lake Mendota Dr Madison WI 53705 International Slope Race ISR coming up May well-known event started Santa Cruz RC Bees became RCM Trophy Race run South Bay Soaring So ciety name switched ISR still SBSS-sponsored race truly interna tional participants coming both Eng land Australia 48 registrants last year will held May 2 3 near Davenport CA between San Francisco Santa Cruz format head-to-head racing four planes time two-pylon course Two days heat racing culminates flyoffs break ties among top eight pilots SBSS invites interested pilots join Contact Bob DeMattei 1580 Parrot Ave Sunnyvale CA 94087 Home phone 408 732-3009 work number 415 723-2950 annual Sugarloaf Classic cross-country race will held year May 30 31 sponsoring club Capital Area Soaring Asso ciation CASA Contest Director will Charlie Wells Write Charlie 1-B Westway Greenbelt MD 20770 race info course site rolling countryside base Sug arloaf Mountain just south Frederick MD CASA real going concern over 100 members deservedly received AMAs Award Excellence last fall Visitors should able combine springtime vacation Washing ton DC enjoyable couple days races SOAR Scale Uprising described January column Because near-conflict dates Nats dates Uprising have changed August 1 2 com plete information write Steve Moskal 30S Kens ington Ave La Grange IL 60625 Sailplaners have Commodore personal computer will interested new Sailplane Design Program written young Eddie Dumas Jr Knoxville Eddies program will predict design would perform changed airfoils wing length chord CG Several airfoil data files stored basic disk including Eppler 193 205 214 Ten kit Sailplanes also disk including both sizes Sagitta Windsong Eddie says analysis process based Eric Listers Sailplane Designers Handbook plus data several Soar Tech numbers Looks very teresting cost quite reasonable too Send $20 Eddie 3220 Boomerang Lane Knoxville TN 37931 diskette full operating instructions Eddie promises updates purchasers reasonable cost develops Ni-Cds revisited February issue dis cussed using expanded-scale voltmeter ESVM check Ni-Cd packs voltage Usually ESVM used field see pack has sufficient voltage go flight indicates packs condition particular time However ESVM does tell story packs overall capacity ie flights expect per charge need Ni-Cd discharger cycler discharger tells long pack pro duced normal current flow going full charge down 1 1 volts per cell has pointed out discharger gives what could called relative time unit has fixed resistance determines current flow plus electronic circuit cut off current flow cell voltage gets down about 1 1 volts Continued page 142 Wrebcil R/C ldle4ar Glow Plugs Long Short Also.Only $189 Traditional line non-idle bar Glow Plugs e Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 Sor 7948 Wayne NJ 07470 140 Model Aviation J-3 KITTEN ULTRALIGHTJ Best New Design Award Sun Fun Lakeland Florida Features 1/4 Scale 90 span 4 cycle 45 2 cycle 40 Plans $1750 ppd Dry Ridge Models 59 McCurry Rd Weaverville NC 28787 RUBBER POWERED FLYING MODELS KIrS e PLANS e ACCESSORIES KITS TISSUE LUBE PROPELLERS SHAFTS BEARINGS WHEELS LARGE CATALOG OF QUALITY SUPPLIES KITS AND PLANS FOR RUBBER POWERED MODELS ALSO CO-2 ENGINES BLIMPS ELECTRIC AND MORE FULL C41ALOG $299 NEW NO 619 448-1818 j Peck-Pelymes - BOX 2498 -MA LA MESA CA 92041 two parameters will vary between types dis charger Thus discharge times have meaning particular unit also history discharge times pack provides infor mation its capacity Another thing remember about Ni-Cds so-called memory effect produced pack repeatedly discharged about same percentage capacity recharged theory cells get lazy wont produce past accustomed cutoff point cure discharge recharge several times row to break memory Dont worry about wearing out batteries doing discharge check month Unless lot flying Ni-Cds will quit due old age before wearing out Its experience Ni-Cds last about three five years Continuing previous example Say have receiver pack does 118 minutes discharger its new Over period three years times drop 94 minutes about 20% down could indicate cell weak course discharge time suddenly drops 50 minutes something like know something obviously wrong either case pack has go hospital surgery have open up packs case whatever necessary get voltmeter probe both ends cell Set voltmeter regular kind its lowest scale whatever reads zero about 15 volts Plug receiver pack ESVM put load transmit ters can turned ESVM used load purposes transmitter pack load applied test cell turnremembering observe polarity Usually youll find cell either stone dead reversed polarity much weaker rest cells make sure can recharge pack again individually test cells Usually suspect cell will still show bad shows good put pack discharger check cell 10 minutes suspect cell will probably run down quickly Now youve got choice either replace bad cell similar new discard whole pack pack isnt too old think remaining cells good can go ahead replace bad Most modem packs will have cells connected little straps welded cell can save strap carefully chiseling strap off old X Acto blade heftier variety new cell should prepared using rosin paste rosin-core solder put nice little blob solder end 50- 100-watt soldering iron about right trick get end cell hot quickly dont overheat ruin whole cell operation much simpler replacement cells have tabs al ready welded ends tabs heat up much faster After cell tinned its simple solder pack ifyou hold pack some sort vise fixture have hold soldering iron hand push strap down screw driver something other hand Now have reassemble pack charge put discharger see what get few charge/discharge cycles row good pack back within 5% 10% its original discharge time should okay Make note what youve done log sheet page pack may happen wind up replacing four receiver-pack cells within year case youll say should have thrown whole thing away begin Newsletter editors unite Barry Kurath news letter editor Portland Area Sailplane Society Februarys Club Month sent excel lent idea suggests Soaring club newsletter editors interested exchanging other clubs send name column name address get printed Sha zamyoure flooded newsletters Actually theres As editors know what crave good solid mate rial Nobody wants exchange learn next club meeting twenty-third need good newsletter exchange good news letter editors have developed inherited network other clubs good original article appears newsletter its astonishing fast travels around country Anyway stand ready print names addresses editors wish give go Since thought Barry gets go first Barry Kurath 3000 NE 29th Portland OR 97212 Byron Blakeslee 3134 Winnebago Dr Se dalia CO 80135 RC Aerobatics/Van Putte Continued page 43 care inclusion Reverse Knife Edge Flight lieu Three Horizontal Rolls like adding s Square Loop inclusion Triangular Rolling Loop RCA 88-20 change Advanced class maneuvers last proposed rule pass Initial Vote exception Knife Edge Flight like pattern dont like Knife Edge Flight same reason dont like 142Model Aviation $425 AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY SMIflflHI NED WE W*ZZD 7550 Sar GaS,rI Soad edeo CA 93422 456-1717 LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW new K Series family propellers has introduced three sizes 14x6 14x8 16x6 large propellers have wider blades thinner airfoil sections best performance fourstroke engines will also work very well two-strokes Mold ed same tough glass-filled nylon GIF 1/2A Series props have same incredible strength durability Planned future releases series 12 x 6 16 x 8 Priced $395 $495 WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa Calif 95401
Edition: Model Aviation - 1987/04
Page Numbers: 40, 41, 138, 139, 140, 142
Radio Control Soaring Byron Blakeslee TOM THOMPSON Albuquerque F3B sistant team manager fund-raising chairman dropped over Christmas holiday give us latest team news may have heard team Steve Work Rich Spicer Steve Lewis will represent USA against about 29 other countries summer Os nabruck West Germany Olympics RC Soaring competition will July 24 through August 2 Fliers will world-class equipmentboth aircraft radioswill state-of-the-an Moneywise F3B World Championships dont rank Americas Cup effort just important us Sailplaners Cup New York Yacht Club Just Cup syndicates raised much funds public team needs support great Sailplane community make best possible showing Germany Donations will get some nice souvenirs $5 USA F3B pin flying hat $10 USA F3B team patch infor mation sheets teams planes $15 both above course donations larger smaller shown above very welcome addition souvenirs donors names will entered sweepstakes drawing some substantial prizes donated industry sponsors prize list isnt finalized Im sure will plenty goodies won Well print sponsors prizes soon info available Please send check F3B Soaring Team Box 9328 Al buquerque NM 87119 aircraft scene Tom said Steve Work received five new Comets Peter Muller West Germany Two actually belong Steves practice partner Phil Renaud also team assistant new Comet bit smaller 112-in span 118-in Kings Steve Phil flew team selection finals can see photo Comet has conventional fuselage fairly large canopy-style cutout What unusual nose cone slips over fuselage make very sturdy assembly fuselage cross-section oval unlike normal circular section used slip-on nose cones Other construction details fuselage made Kevlar stabs hollow-core Kevlar wings foam carbon-fiber spar %-in-diameter carbonfiber joiner-rod 1mm German pine sheeting Quabeck 20 airfoil slightly thinner 9% King 10% Total unballasted weight 82 oz giving wing loading 118 oz/sq ft Steve estimates Comet will about second faster King Speed task will also have L/D well Dis tance task High-tech stuff Important news Members SOAR club Chicago Dan Pruss club have voted honor Dans contributions great hobby/sport establishing permanent trophy awarded annually AMA Nats Soaring event will known Dan Pruss Memorial Team Award SOAR endowing very gene rous $2000 Additional contributions inter ested individuals also welcome permanent trophy will reside AMA HQ Winning team members will receive plaques awards ban quet following Nats Details winning team deter mined will announced shortly SOAR new team award will certainly add interest excitement Nats will excellent complement established awards Hi Johnson highest score event Lee Renaud highest total score three Dura tion events Sid Axelrod best per formance Junior Senior class B Im sure Sailplaners closely studied Atrix construction article Harley Michaelis ap peared Decembers Model Aviation beautifully-thought-out design undoubtedly WiI Beyers sends two photos Three planes L 1 5-year-old Nelson Ka-6 jet-lIke VelocIty Squared E-Racer two Penetrators R Formula I-style Slope Racers belongIng Pete Marshall Bob VanNote flies good looks wno nave started Atrixor considering onewill want some updates available Harley update also explains use two indi vidual aileron servos altemate stab construction full-sized computer-generated airfoil tem plates rib-making Airtronics 75P Module radio owners will get much good information optimum setup description Harley has written says man ual contains errors does begin fully tap potential radio system bargain too Send SASE plus another stamp help reproduction costs Harley 26 South Roosevelt Walla Walla WA 99362 objectives column try encourage interest Scale Sailplanes happy receive letter photos Bill Liscorob Carlsbad CA think would classify Scale nut have flying RC Gliders 17 years building Scale Gliders past four years also have private-pilot-glider rating Master hang-glider rating Ive built flown full-scale Moni motorglider 1986 built nine quarterscale Gliders have four lined up year Almost RC flying has Slope Soaring Ive built flown few Power models am definitely spoiled simplicity Slope Soaring set up winch fly would toss-up between Power Glider fly ing seven Scale ships have now cant think would risk winchlaunching landing field longish grass throw off hill bet Anytime lack popularity Scale Soaring country lack interest perhaps due format contests have hang-gliding experience plenty good Slope Soaring sites across country have Scale Sailplane Nats Slope site Scale ships flying contests organized large sometimes 40 Model Aviation Bill Liscomb loves quarter-scale Sailpianes photo above launches ASW-1 5B off cliffs atTorrey Pines CA Craft weighs 8 ibstays up light ones Below shows Rowing LS-4 Its all-fiberglass weighs 13 lb indeed think Bill has offered excellent idea Next need suitable site group organize wants write offers Seriously Europe run lots Scale fun-flies/contests slopesso no reason shouldnt able put something Lets hear about Wil Byers Richiand WA wrote report Slope Soaring alive well great Pacific Northwest Wil said picked up model ing father began Soaring Don Burt Bunny 1976 interest models revitalized after very nasty hang-gliding acci dent Thats thing like about models can have terrible crash nobody gets hurt Anyway Wil organized first Mid-Columbia Slope Soaring Fun Fly 1979 says have 45 participants over 80 air planes Wil club also put two AMAsanctioned Slope races last year will again sponsor 1987 Wil goes say Slope racing new NW Soaring com munity such just beginning recog nized alternative Thermal competition Tn-City Soarers TRICS club has much support NWSS Northwest Soaring Society get events publicized fine newsletter hopeful will see fliers involved Slope Soaring affiliated group come out fly us regular basis would say primary goal club People come fly us four states also Canada pilots mixed bag range familiar names such Tom Brightbill airline pilot Canada avid flier fliers Continued page 138 high quality totally glazed ceramic engine mug must modeler standing 51/2 inches tall large 10 07 capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per order $695 o CA residents add sales taw Kreft Engines Testorl McCoy Talpan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available RIL Industries ox 5654 dena CA 91107 Phone 818 359-0016 ___________________________ Lets enjoy outdoorsin comfort III weuYour Little World Comfort Hot Burning Summer Days Convenient Size Portable Shade Thats Quick Set Up Change Instantly Give Protection Weather Size 72x 120 60 sq fi Add units double triple etcthe size Porte-Shade available lAdd usits can used trailer awnings patio covers etcl PortaShade convenient size has center psie mere useable space can straddle picnic table endel airplane er small vehicle canopy streng heat reflecting waterpreof material white no tsp aidel unique tear preet csrner ticinga no grommeta stands almost 7 taIl atmog V aluminum poles can stand worm er piny under comlert wind resistanttested te 40 MPH can adiusted easily tilt against sun can set up vertically wiodboesh Set up very quick pemnn can Sin sbsut 5 minutes Mastesad nina Manavordamsportsman Model/PFR5-60 $3995 $3 uss sealer Inqairies wandEconomy Model/EPFR4-59 $3295 $3 5P5 THE 4M CO Dept M 0549 slsawnee Dewey OK 74039 iV anal nra 5342244 April 1987 41 US F3B Assistant Team Manager Tom Thompson Above holds Steve Works new Cometa German Import Steve will fly World Champs Comets removable nose cone Below slips over front fuse 1/32 scale plastic model kits Golden Age classic aircraft Colorful highly detailed miniatures Send $2 fully illustrated cata log other kits accessories MA DEPT 81 PAWNEE ST NLLA~S SAN MARCOS IOS CALIrORNIA 92069 fast Scale models mind REPLACEMENT MODEL PARTS FOR MOTOR MUGTM V7Fvr PAN FUNG FT PAN ROLIfl PLAN 819 FThGLSSS CWLS$20 Arno PXi N PARTS PO BOX 939 OJkJ NY IA760 32 ADD I2%WTTWWY Aim BX tang begin shudder everything stopped flying right front No problem plane though just apply power continue nothing happened just slight pause climb out gallery behind agreed other airplane would have crashed least six times light wing loading forgiving nature airplane will let get away things might kill heavier model few weeks ago very windy day couldnt resist temptation try hov ering model wind ground speed dropped zero could make model rise fall playing throttle otherwise sat motionless just over head Midget Mustang such versatile airplane really does makes flying fun Scale Doc/Kruse Continued page 39 model its drawings scale ruler omitted loss points will dis astrous Color Markings Documentation have separate authenticated state ment color markings paint chips photos specifically included show color markings place include things Also include some sort labeling system brief commentary intent purpose display judges will know what youre trying show Photos Other Supporting Matedais last area along threeview probably critical far securing good static points photos displayed should aircraft have modeled Photos support efforts should discarded unless some specific logical reason clusion possible brief caption line under photo also useful help judges see what want see Good crisp black-and-white photos no smaller 4 x 5 very useful Color pictures better unless colors chosen aircraft documentation material should placed sequentially binder some sort prefer three-ring loose-leaf binder preferably oolor complimentary model Since several people will hand ling material during course contest season its best place page inside clear acetate page protector avail able office supply house scale ruler should also placed within binder possible should attached some way prevent being lost made card stock holes may punched will fit three-ring binder plastic ruler try attaching Velcro inside cover binder As stated FAT RC CL Scale rules Proof scale responsibility contestant Hopefully exercising same diligence collecting organizing packaging scale documentation typically evident construction model builder will find himself winners circle far consistently Good luck next Scale project RC Soaring/Blakeslee Continued page 41 also outstanding builders creative ideas such Ken Stuhr builds some beautiful fast models comparable anything coming Out Europe Jim Riggle Portland currently dulging himself Marks Models -scale ASW-20 project should beautiful sight see could go on know clubs have individuals never hear about wish did hill heights vary 600 1100 ftwith wind direction being little conse quence least site should work conditionall within 15-mile radius Inciden tally over Oregon coast spec tacular site known Cascade Head 1295 ft high looks directly Onto ocean lift dies landings can made face bill quite nice grass Anyone wanting fly us can contact 632 Meadows F Richland WA 99352 Thanks report Wil sounds like slopes just what Bill Liscomb looking Wil sent quite few photos letter taken top slope shows huge absolutely beautiful valley down below Unfortunately lacked sufficient contrast print magazine Wils other photos show range plane types can flown slopefrom /4-scalers Thermal ships jetFokker D-VII VK Model Aircraft PO Box 3007 Aurora 1160505 312-357-1883 ZMA Name Street Addreas City StateZip 138 Model Aviation WEBRA NOT Clowning around Anymore UNITED MODEL PRODUCTS has appointed exclusiveengine distributors Only UMP brings full line raceproven WEBRA engines backs top-quality commitment service WEBRA UMP way should because comes choice engines serious J/4I AND UMP division United Model Distributors style semi-Scale designs Formula 1-type racers look just ticket Slope Pylon Racing fact what see British magazines rage Slope ships over sorts semi-Scale takeoffs powered planes include jet fighters bomb ers airliners new orga nization called oddly enough Power Scale Soaring Association putting out news letter devoted Power Scale Soarers can imag ine seeing jobs air would great fun Dr Carl Mohs sent following summary Madison Area RC Societys National Sail plane Symposium meeting getting things Sailplaners schedule fall Proceedings Symposium will available later summerwell let know See February 1987 column info 1983 84 85 Proceedings fourth annual MARCS National Sailplane Symposium attracted 106 Sailplane enthusiasts came Madison WI two-day meet ing November 1st 2nd 1986 Early arrivals treated tour Air National Guard facility learned new respect fly AlO aircraft roll rate reproduced simulator fantastic Saturday meeting opened talk Walt Good set pace next two days learning fellowship Walt disclosed re search early history model RC flying some fascinating stories first model successfully controlled Germany CD Bob Sealy followed report F3B team selection finals set stage panel discussion future F3B US conducted John Grigg assisted Terry Edmonds Bob Sealy symposium participants showed interest possibility run ning F3B-like contests would build interest multi-task events help prepare con testants advancing full international F3B-type aircraft Warren Plohr Peter Waters brought us up date frequency situation frank discussion situation exists now will future full spectrum contests local club event Nationals Intemationals covered panel discussion led Jeff Troy CD Soaring events 85 86 Nats assisted Bob Sealy Cal Posthuma 35 CDs audience theme espoused Jeff applauded organizers serve contestants atmosphere goodwill result will hassle-free contest has certainly case Nats recent F3B team selection finals Tom Brightbill gave very well-received talk flying advanced straightwing models popular Northwest gaining popularity elsewhere thoughts development proper attitude contest-winning hit home us among us hasnt mentally given up after bad flight early contest Maynard Hill gave outstanding talks meeting electrostatic autopilots brought down house word pictures physical difficulties setting world records Power Duration Willy Pfister Gary Tschautscher made good use German heritage bringing us some latest information German Sailplane experiments documented Ger man press two days wound up aeronautical en gineer Joe Wurts bringing us expertise use composites great how-to discussion Whip Antenna Gives Hidden Performance Gone forever nightmare heli-flier dreads stepping 3 foot tenna ripping off front prized chopper just its ready fly Base loaded short WHIP ANTENNA giveshidden performance Less 7 long can mounted project front helicopter inside canopy virtually invisible OOR-AM MOOE PRODUCTS 23961 CRAFTSMAN RD CALABASAS CA 91302 818 992-0195 218 VERNON ROAD GREENVILLE PA 16125 412 588-1321 April1987 139 Realize Genuine Improvement RC Flying Geometron Transmitter Support Completely frees hands control sticks emely comfortable use wear Put levers nothing way Allows Concentrate take off instant hat No bets tying because dont have hold transmitter whilebuckles straps no cord around neck operating controls Provides full tour corner stickWearing support transnilter stays place mobilityyou cany plane Impnve accuracy stick movement because Doubles ideal ground support offers perfect transmitter held stable accessibility keeps transmitter oft ground Adjusts Iwo-stick Tx modifications adapt- Ruggedly built heat treated aluminum finished able single stick Tx easy change support plate heavy duty anodize AssefTibled stainless Simple adjustments arm length shoulder size steel fasteners Designed constructed extended Transmitter secured safety catch can removed use 695O aced second yet cannot accidentally fall Out PURCHASE ALL THREE ITEMS $995Q $99Q See dealer order direct GEOMETRON CO INC 12 INGLESIDE ROAD LEXINGTON MA 02173 617 861-6526 PROVEN TO BE TREMENDOUS HELP FOR BOTH BEGINNERS AND EXPERTSI PIus 51 50 s5ppng CO 0 200 eefeosa cash money order ori charges 8piy o0y COsSnefiha us Mass waidena add 59 LCD TIMER/STOPWATCH Counts up down preset hold additive features Time out sounds alarm auto shutoff Easy read outdoors lithium baSery 21 95* PROTECTIVE BAG Made space age aluminum costed nylon Ref ects suns heat protects Ta dirt st special fast acting closure ONCE YOU USE IT YOU WILL NEVER FLY WITHOUT rn vacuum-bagging technique producing foamand-glass wings meeting demonstrated once again wonderful feeling camaraderie exists within Sailplane movement willingness speakers bring knowledge share others symbolic best hobby Participants came four corners country enthusiasm shown old new friends met heartwarming success first four symposiums has prompted MARCS schedule fifth dates will October 31 November 1 1987 get mailing list information drop card Dr Carl Mohs 5024 Lake Mendota Dr Madison WI 53705 International Slope Race ISR coming up May well-known event started Santa Cruz RC Bees became RCM Trophy Race run South Bay Soaring So ciety name switched ISR still SBSS-sponsored race truly interna tional participants coming both Eng land Australia 48 registrants last year will held May 2 3 near Davenport CA between San Francisco Santa Cruz format head-to-head racing four planes time two-pylon course Two days heat racing culminates flyoffs break ties among top eight pilots SBSS invites interested pilots join Contact Bob DeMattei 1580 Parrot Ave Sunnyvale CA 94087 Home phone 408 732-3009 work number 415 723-2950 annual Sugarloaf Classic cross-country race will held year May 30 31 sponsoring club Capital Area Soaring Asso ciation CASA Contest Director will Charlie Wells Write Charlie 1-B Westway Greenbelt MD 20770 race info course site rolling countryside base Sug arloaf Mountain just south Frederick MD CASA real going concern over 100 members deservedly received AMAs Award Excellence last fall Visitors should able combine springtime vacation Washing ton DC enjoyable couple days races SOAR Scale Uprising described January column Because near-conflict dates Nats dates Uprising have changed August 1 2 com plete information write Steve Moskal 30S Kens ington Ave La Grange IL 60625 Sailplaners have Commodore personal computer will interested new Sailplane Design Program written young Eddie Dumas Jr Knoxville Eddies program will predict design would perform changed airfoils wing length chord CG Several airfoil data files stored basic disk including Eppler 193 205 214 Ten kit Sailplanes also disk including both sizes Sagitta Windsong Eddie says analysis process based Eric Listers Sailplane Designers Handbook plus data several Soar Tech numbers Looks very teresting cost quite reasonable too Send $20 Eddie 3220 Boomerang Lane Knoxville TN 37931 diskette full operating instructions Eddie promises updates purchasers reasonable cost develops Ni-Cds revisited February issue dis cussed using expanded-scale voltmeter ESVM check Ni-Cd packs voltage Usually ESVM used field see pack has sufficient voltage go flight indicates packs condition particular time However ESVM does tell story packs overall capacity ie flights expect per charge need Ni-Cd discharger cycler discharger tells long pack pro duced normal current flow going full charge down 1 1 volts per cell has pointed out discharger gives what could called relative time unit has fixed resistance determines current flow plus electronic circuit cut off current flow cell voltage gets down about 1 1 volts Continued page 142 Wrebcil R/C ldle4ar Glow Plugs Long Short Also.Only $189 Traditional line non-idle bar Glow Plugs e Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 Sor 7948 Wayne NJ 07470 140 Model Aviation J-3 KITTEN ULTRALIGHTJ Best New Design Award Sun Fun Lakeland Florida Features 1/4 Scale 90 span 4 cycle 45 2 cycle 40 Plans $1750 ppd Dry Ridge Models 59 McCurry Rd Weaverville NC 28787 RUBBER POWERED FLYING MODELS KIrS e PLANS e ACCESSORIES KITS TISSUE LUBE PROPELLERS SHAFTS BEARINGS WHEELS LARGE CATALOG OF QUALITY SUPPLIES KITS AND PLANS FOR RUBBER POWERED MODELS ALSO CO-2 ENGINES BLIMPS ELECTRIC AND MORE FULL C41ALOG $299 NEW NO 619 448-1818 j Peck-Pelymes - BOX 2498 -MA LA MESA CA 92041 two parameters will vary between types dis charger Thus discharge times have meaning particular unit also history discharge times pack provides infor mation its capacity Another thing remember about Ni-Cds so-called memory effect produced pack repeatedly discharged about same percentage capacity recharged theory cells get lazy wont produce past accustomed cutoff point cure discharge recharge several times row to break memory Dont worry about wearing out batteries doing discharge check month Unless lot flying Ni-Cds will quit due old age before wearing out Its experience Ni-Cds last about three five years Continuing previous example Say have receiver pack does 118 minutes discharger its new Over period three years times drop 94 minutes about 20% down could indicate cell weak course discharge time suddenly drops 50 minutes something like know something obviously wrong either case pack has go hospital surgery have open up packs case whatever necessary get voltmeter probe both ends cell Set voltmeter regular kind its lowest scale whatever reads zero about 15 volts Plug receiver pack ESVM put load transmit ters can turned ESVM used load purposes transmitter pack load applied test cell turnremembering observe polarity Usually youll find cell either stone dead reversed polarity much weaker rest cells make sure can recharge pack again individually test cells Usually suspect cell will still show bad shows good put pack discharger check cell 10 minutes suspect cell will probably run down quickly Now youve got choice either replace bad cell similar new discard whole pack pack isnt too old think remaining cells good can go ahead replace bad Most modem packs will have cells connected little straps welded cell can save strap carefully chiseling strap off old X Acto blade heftier variety new cell should prepared using rosin paste rosin-core solder put nice little blob solder end 50- 100-watt soldering iron about right trick get end cell hot quickly dont overheat ruin whole cell operation much simpler replacement cells have tabs al ready welded ends tabs heat up much faster After cell tinned its simple solder pack ifyou hold pack some sort vise fixture have hold soldering iron hand push strap down screw driver something other hand Now have reassemble pack charge put discharger see what get few charge/discharge cycles row good pack back within 5% 10% its original discharge time should okay Make note what youve done log sheet page pack may happen wind up replacing four receiver-pack cells within year case youll say should have thrown whole thing away begin Newsletter editors unite Barry Kurath news letter editor Portland Area Sailplane Society Februarys Club Month sent excel lent idea suggests Soaring club newsletter editors interested exchanging other clubs send name column name address get printed Sha zamyoure flooded newsletters Actually theres As editors know what crave good solid mate rial Nobody wants exchange learn next club meeting twenty-third need good newsletter exchange good news letter editors have developed inherited network other clubs good original article appears newsletter its astonishing fast travels around country Anyway stand ready print names addresses editors wish give go Since thought Barry gets go first Barry Kurath 3000 NE 29th Portland OR 97212 Byron Blakeslee 3134 Winnebago Dr Se dalia CO 80135 RC Aerobatics/Van Putte Continued page 43 care inclusion Reverse Knife Edge Flight lieu Three Horizontal Rolls like adding s Square Loop inclusion Triangular Rolling Loop RCA 88-20 change Advanced class maneuvers last proposed rule pass Initial Vote exception Knife Edge Flight like pattern dont like Knife Edge Flight same reason dont like 142Model Aviation $425 AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY SMIflflHI NED WE W*ZZD 7550 Sar GaS,rI Soad edeo CA 93422 456-1717 LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW new K Series family propellers has introduced three sizes 14x6 14x8 16x6 large propellers have wider blades thinner airfoil sections best performance fourstroke engines will also work very well two-strokes Mold ed same tough glass-filled nylon GIF 1/2A Series props have same incredible strength durability Planned future releases series 12 x 6 16 x 8 Priced $395 $495 WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa Calif 95401
Edition: Model Aviation - 1987/04
Page Numbers: 40, 41, 138, 139, 140, 142
Radio Control Soaring Byron Blakeslee TOM THOMPSON Albuquerque F3B sistant team manager fund-raising chairman dropped over Christmas holiday give us latest team news may have heard team Steve Work Rich Spicer Steve Lewis will represent USA against about 29 other countries summer Os nabruck West Germany Olympics RC Soaring competition will July 24 through August 2 Fliers will world-class equipmentboth aircraft radioswill state-of-the-an Moneywise F3B World Championships dont rank Americas Cup effort just important us Sailplaners Cup New York Yacht Club Just Cup syndicates raised much funds public team needs support great Sailplane community make best possible showing Germany Donations will get some nice souvenirs $5 USA F3B pin flying hat $10 USA F3B team patch infor mation sheets teams planes $15 both above course donations larger smaller shown above very welcome addition souvenirs donors names will entered sweepstakes drawing some substantial prizes donated industry sponsors prize list isnt finalized Im sure will plenty goodies won Well print sponsors prizes soon info available Please send check F3B Soaring Team Box 9328 Al buquerque NM 87119 aircraft scene Tom said Steve Work received five new Comets Peter Muller West Germany Two actually belong Steves practice partner Phil Renaud also team assistant new Comet bit smaller 112-in span 118-in Kings Steve Phil flew team selection finals can see photo Comet has conventional fuselage fairly large canopy-style cutout What unusual nose cone slips over fuselage make very sturdy assembly fuselage cross-section oval unlike normal circular section used slip-on nose cones Other construction details fuselage made Kevlar stabs hollow-core Kevlar wings foam carbon-fiber spar %-in-diameter carbonfiber joiner-rod 1mm German pine sheeting Quabeck 20 airfoil slightly thinner 9% King 10% Total unballasted weight 82 oz giving wing loading 118 oz/sq ft Steve estimates Comet will about second faster King Speed task will also have L/D well Dis tance task High-tech stuff Important news Members SOAR club Chicago Dan Pruss club have voted honor Dans contributions great hobby/sport establishing permanent trophy awarded annually AMA Nats Soaring event will known Dan Pruss Memorial Team Award SOAR endowing very gene rous $2000 Additional contributions inter ested individuals also welcome permanent trophy will reside AMA HQ Winning team members will receive plaques awards ban quet following Nats Details winning team deter mined will announced shortly SOAR new team award will certainly add interest excitement Nats will excellent complement established awards Hi Johnson highest score event Lee Renaud highest total score three Dura tion events Sid Axelrod best per formance Junior Senior class B Im sure Sailplaners closely studied Atrix construction article Harley Michaelis ap peared Decembers Model Aviation beautifully-thought-out design undoubtedly WiI Beyers sends two photos Three planes L 1 5-year-old Nelson Ka-6 jet-lIke VelocIty Squared E-Racer two Penetrators R Formula I-style Slope Racers belongIng Pete Marshall Bob VanNote flies good looks wno nave started Atrixor considering onewill want some updates available Harley update also explains use two indi vidual aileron servos altemate stab construction full-sized computer-generated airfoil tem plates rib-making Airtronics 75P Module radio owners will get much good information optimum setup description Harley has written says man ual contains errors does begin fully tap potential radio system bargain too Send SASE plus another stamp help reproduction costs Harley 26 South Roosevelt Walla Walla WA 99362 objectives column try encourage interest Scale Sailplanes happy receive letter photos Bill Liscorob Carlsbad CA think would classify Scale nut have flying RC Gliders 17 years building Scale Gliders past four years also have private-pilot-glider rating Master hang-glider rating Ive built flown full-scale Moni motorglider 1986 built nine quarterscale Gliders have four lined up year Almost RC flying has Slope Soaring Ive built flown few Power models am definitely spoiled simplicity Slope Soaring set up winch fly would toss-up between Power Glider fly ing seven Scale ships have now cant think would risk winchlaunching landing field longish grass throw off hill bet Anytime lack popularity Scale Soaring country lack interest perhaps due format contests have hang-gliding experience plenty good Slope Soaring sites across country have Scale Sailplane Nats Slope site Scale ships flying contests organized large sometimes 40 Model Aviation Bill Liscomb loves quarter-scale Sailpianes photo above launches ASW-1 5B off cliffs atTorrey Pines CA Craft weighs 8 ibstays up light ones Below shows Rowing LS-4 Its all-fiberglass weighs 13 lb indeed think Bill has offered excellent idea Next need suitable site group organize wants write offers Seriously Europe run lots Scale fun-flies/contests slopesso no reason shouldnt able put something Lets hear about Wil Byers Richiand WA wrote report Slope Soaring alive well great Pacific Northwest Wil said picked up model ing father began Soaring Don Burt Bunny 1976 interest models revitalized after very nasty hang-gliding acci dent Thats thing like about models can have terrible crash nobody gets hurt Anyway Wil organized first Mid-Columbia Slope Soaring Fun Fly 1979 says have 45 participants over 80 air planes Wil club also put two AMAsanctioned Slope races last year will again sponsor 1987 Wil goes say Slope racing new NW Soaring com munity such just beginning recog nized alternative Thermal competition Tn-City Soarers TRICS club has much support NWSS Northwest Soaring Society get events publicized fine newsletter hopeful will see fliers involved Slope Soaring affiliated group come out fly us regular basis would say primary goal club People come fly us four states also Canada pilots mixed bag range familiar names such Tom Brightbill airline pilot Canada avid flier fliers Continued page 138 high quality totally glazed ceramic engine mug must modeler standing 51/2 inches tall large 10 07 capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per order $695 o CA residents add sales taw Kreft Engines Testorl McCoy Talpan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available RIL Industries ox 5654 dena CA 91107 Phone 818 359-0016 ___________________________ Lets enjoy outdoorsin comfort III weuYour Little World Comfort Hot Burning Summer Days Convenient Size Portable Shade Thats Quick Set Up Change Instantly Give Protection Weather Size 72x 120 60 sq fi Add units double triple etcthe size Porte-Shade available lAdd usits can used trailer awnings patio covers etcl PortaShade convenient size has center psie mere useable space can straddle picnic table endel airplane er small vehicle canopy streng heat reflecting waterpreof material white no tsp aidel unique tear preet csrner ticinga no grommeta stands almost 7 taIl atmog V aluminum poles can stand worm er piny under comlert wind resistanttested te 40 MPH can adiusted easily tilt against sun can set up vertically wiodboesh Set up very quick pemnn can Sin sbsut 5 minutes Mastesad nina Manavordamsportsman Model/PFR5-60 $3995 $3 uss sealer Inqairies wandEconomy Model/EPFR4-59 $3295 $3 5P5 THE 4M CO Dept M 0549 slsawnee Dewey OK 74039 iV anal nra 5342244 April 1987 41 US F3B Assistant Team Manager Tom Thompson Above holds Steve Works new Cometa German Import Steve will fly World Champs Comets removable nose cone Below slips over front fuse 1/32 scale plastic model kits Golden Age classic aircraft Colorful highly detailed miniatures Send $2 fully illustrated cata log other kits accessories MA DEPT 81 PAWNEE ST NLLA~S SAN MARCOS IOS CALIrORNIA 92069 fast Scale models mind REPLACEMENT MODEL PARTS FOR MOTOR MUGTM V7Fvr PAN FUNG FT PAN ROLIfl PLAN 819 FThGLSSS CWLS$20 Arno PXi N PARTS PO BOX 939 OJkJ NY IA760 32 ADD I2%WTTWWY Aim BX tang begin shudder everything stopped flying right front No problem plane though just apply power continue nothing happened just slight pause climb out gallery behind agreed other airplane would have crashed least six times light wing loading forgiving nature airplane will let get away things might kill heavier model few weeks ago very windy day couldnt resist temptation try hov ering model wind ground speed dropped zero could make model rise fall playing throttle otherwise sat motionless just over head Midget Mustang such versatile airplane really does makes flying fun Scale Doc/Kruse Continued page 39 model its drawings scale ruler omitted loss points will dis astrous Color Markings Documentation have separate authenticated state ment color markings paint chips photos specifically included show color markings place include things Also include some sort labeling system brief commentary intent purpose display judges will know what youre trying show Photos Other Supporting Matedais last area along threeview probably critical far securing good static points photos displayed should aircraft have modeled Photos support efforts should discarded unless some specific logical reason clusion possible brief caption line under photo also useful help judges see what want see Good crisp black-and-white photos no smaller 4 x 5 very useful Color pictures better unless colors chosen aircraft documentation material should placed sequentially binder some sort prefer three-ring loose-leaf binder preferably oolor complimentary model Since several people will hand ling material during course contest season its best place page inside clear acetate page protector avail able office supply house scale ruler should also placed within binder possible should attached some way prevent being lost made card stock holes may punched will fit three-ring binder plastic ruler try attaching Velcro inside cover binder As stated FAT RC CL Scale rules Proof scale responsibility contestant Hopefully exercising same diligence collecting organizing packaging scale documentation typically evident construction model builder will find himself winners circle far consistently Good luck next Scale project RC Soaring/Blakeslee Continued page 41 also outstanding builders creative ideas such Ken Stuhr builds some beautiful fast models comparable anything coming Out Europe Jim Riggle Portland currently dulging himself Marks Models -scale ASW-20 project should beautiful sight see could go on know clubs have individuals never hear about wish did hill heights vary 600 1100 ftwith wind direction being little conse quence least site should work conditionall within 15-mile radius Inciden tally over Oregon coast spec tacular site known Cascade Head 1295 ft high looks directly Onto ocean lift dies landings can made face bill quite nice grass Anyone wanting fly us can contact 632 Meadows F Richland WA 99352 Thanks report Wil sounds like slopes just what Bill Liscomb looking Wil sent quite few photos letter taken top slope shows huge absolutely beautiful valley down below Unfortunately lacked sufficient contrast print magazine Wils other photos show range plane types can flown slopefrom /4-scalers Thermal ships jetFokker D-VII VK Model Aircraft PO Box 3007 Aurora 1160505 312-357-1883 ZMA Name Street Addreas City StateZip 138 Model Aviation WEBRA NOT Clowning around Anymore UNITED MODEL PRODUCTS has appointed exclusiveengine distributors Only UMP brings full line raceproven WEBRA engines backs top-quality commitment service WEBRA UMP way should because comes choice engines serious J/4I AND UMP division United Model Distributors style semi-Scale designs Formula 1-type racers look just ticket Slope Pylon Racing fact what see British magazines rage Slope ships over sorts semi-Scale takeoffs powered planes include jet fighters bomb ers airliners new orga nization called oddly enough Power Scale Soaring Association putting out news letter devoted Power Scale Soarers can imag ine seeing jobs air would great fun Dr Carl Mohs sent following summary Madison Area RC Societys National Sail plane Symposium meeting getting things Sailplaners schedule fall Proceedings Symposium will available later summerwell let know See February 1987 column info 1983 84 85 Proceedings fourth annual MARCS National Sailplane Symposium attracted 106 Sailplane enthusiasts came Madison WI two-day meet ing November 1st 2nd 1986 Early arrivals treated tour Air National Guard facility learned new respect fly AlO aircraft roll rate reproduced simulator fantastic Saturday meeting opened talk Walt Good set pace next two days learning fellowship Walt disclosed re search early history model RC flying some fascinating stories first model successfully controlled Germany CD Bob Sealy followed report F3B team selection finals set stage panel discussion future F3B US conducted John Grigg assisted Terry Edmonds Bob Sealy symposium participants showed interest possibility run ning F3B-like contests would build interest multi-task events help prepare con testants advancing full international F3B-type aircraft Warren Plohr Peter Waters brought us up date frequency situation frank discussion situation exists now will future full spectrum contests local club event Nationals Intemationals covered panel discussion led Jeff Troy CD Soaring events 85 86 Nats assisted Bob Sealy Cal Posthuma 35 CDs audience theme espoused Jeff applauded organizers serve contestants atmosphere goodwill result will hassle-free contest has certainly case Nats recent F3B team selection finals Tom Brightbill gave very well-received talk flying advanced straightwing models popular Northwest gaining popularity elsewhere thoughts development proper attitude contest-winning hit home us among us hasnt mentally given up after bad flight early contest Maynard Hill gave outstanding talks meeting electrostatic autopilots brought down house word pictures physical difficulties setting world records Power Duration Willy Pfister Gary Tschautscher made good use German heritage bringing us some latest information German Sailplane experiments documented Ger man press two days wound up aeronautical en gineer Joe Wurts bringing us expertise use composites great how-to discussion Whip Antenna Gives Hidden Performance Gone forever nightmare heli-flier dreads stepping 3 foot tenna ripping off front prized chopper just its ready fly Base loaded short WHIP ANTENNA giveshidden performance Less 7 long can mounted project front helicopter inside canopy virtually invisible OOR-AM MOOE PRODUCTS 23961 CRAFTSMAN RD CALABASAS CA 91302 818 992-0195 218 VERNON ROAD GREENVILLE PA 16125 412 588-1321 April1987 139 Realize Genuine Improvement RC Flying Geometron Transmitter Support Completely frees hands control sticks emely comfortable use wear Put levers nothing way Allows Concentrate take off instant hat No bets tying because dont have hold transmitter whilebuckles straps no cord around neck operating controls Provides full tour corner stickWearing support transnilter stays place mobilityyou cany plane Impnve accuracy stick movement because Doubles ideal ground support offers perfect transmitter held stable accessibility keeps transmitter oft ground Adjusts Iwo-stick Tx modifications adapt- Ruggedly built heat treated aluminum finished able single stick Tx easy change support plate heavy duty anodize AssefTibled stainless Simple adjustments arm length shoulder size steel fasteners Designed constructed extended Transmitter secured safety catch can removed use 695O aced second yet cannot accidentally fall Out PURCHASE ALL THREE ITEMS $995Q $99Q See dealer order direct GEOMETRON CO INC 12 INGLESIDE ROAD LEXINGTON MA 02173 617 861-6526 PROVEN TO BE TREMENDOUS HELP FOR BOTH BEGINNERS AND EXPERTSI PIus 51 50 s5ppng CO 0 200 eefeosa cash money order ori charges 8piy o0y COsSnefiha us Mass waidena add 59 LCD TIMER/STOPWATCH Counts up down preset hold additive features Time out sounds alarm auto shutoff Easy read outdoors lithium baSery 21 95* PROTECTIVE BAG Made space age aluminum costed nylon Ref ects suns heat protects Ta dirt st special fast acting closure ONCE YOU USE IT YOU WILL NEVER FLY WITHOUT rn vacuum-bagging technique producing foamand-glass wings meeting demonstrated once again wonderful feeling camaraderie exists within Sailplane movement willingness speakers bring knowledge share others symbolic best hobby Participants came four corners country enthusiasm shown old new friends met heartwarming success first four symposiums has prompted MARCS schedule fifth dates will October 31 November 1 1987 get mailing list information drop card Dr Carl Mohs 5024 Lake Mendota Dr Madison WI 53705 International Slope Race ISR coming up May well-known event started Santa Cruz RC Bees became RCM Trophy Race run South Bay Soaring So ciety name switched ISR still SBSS-sponsored race truly interna tional participants coming both Eng land Australia 48 registrants last year will held May 2 3 near Davenport CA between San Francisco Santa Cruz format head-to-head racing four planes time two-pylon course Two days heat racing culminates flyoffs break ties among top eight pilots SBSS invites interested pilots join Contact Bob DeMattei 1580 Parrot Ave Sunnyvale CA 94087 Home phone 408 732-3009 work number 415 723-2950 annual Sugarloaf Classic cross-country race will held year May 30 31 sponsoring club Capital Area Soaring Asso ciation CASA Contest Director will Charlie Wells Write Charlie 1-B Westway Greenbelt MD 20770 race info course site rolling countryside base Sug arloaf Mountain just south Frederick MD CASA real going concern over 100 members deservedly received AMAs Award Excellence last fall Visitors should able combine springtime vacation Washing ton DC enjoyable couple days races SOAR Scale Uprising described January column Because near-conflict dates Nats dates Uprising have changed August 1 2 com plete information write Steve Moskal 30S Kens ington Ave La Grange IL 60625 Sailplaners have Commodore personal computer will interested new Sailplane Design Program written young Eddie Dumas Jr Knoxville Eddies program will predict design would perform changed airfoils wing length chord CG Several airfoil data files stored basic disk including Eppler 193 205 214 Ten kit Sailplanes also disk including both sizes Sagitta Windsong Eddie says analysis process based Eric Listers Sailplane Designers Handbook plus data several Soar Tech numbers Looks very teresting cost quite reasonable too Send $20 Eddie 3220 Boomerang Lane Knoxville TN 37931 diskette full operating instructions Eddie promises updates purchasers reasonable cost develops Ni-Cds revisited February issue dis cussed using expanded-scale voltmeter ESVM check Ni-Cd packs voltage Usually ESVM used field see pack has sufficient voltage go flight indicates packs condition particular time However ESVM does tell story packs overall capacity ie flights expect per charge need Ni-Cd discharger cycler discharger tells long pack pro duced normal current flow going full charge down 1 1 volts per cell has pointed out discharger gives what could called relative time unit has fixed resistance determines current flow plus electronic circuit cut off current flow cell voltage gets down about 1 1 volts Continued page 142 Wrebcil R/C ldle4ar Glow Plugs Long Short Also.Only $189 Traditional line non-idle bar Glow Plugs e Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 Sor 7948 Wayne NJ 07470 140 Model Aviation J-3 KITTEN ULTRALIGHTJ Best New Design Award Sun Fun Lakeland Florida Features 1/4 Scale 90 span 4 cycle 45 2 cycle 40 Plans $1750 ppd Dry Ridge Models 59 McCurry Rd Weaverville NC 28787 RUBBER POWERED FLYING MODELS KIrS e PLANS e ACCESSORIES KITS TISSUE LUBE PROPELLERS SHAFTS BEARINGS WHEELS LARGE CATALOG OF QUALITY SUPPLIES KITS AND PLANS FOR RUBBER POWERED MODELS ALSO CO-2 ENGINES BLIMPS ELECTRIC AND MORE FULL C41ALOG $299 NEW NO 619 448-1818 j Peck-Pelymes - BOX 2498 -MA LA MESA CA 92041 two parameters will vary between types dis charger Thus discharge times have meaning particular unit also history discharge times pack provides infor mation its capacity Another thing remember about Ni-Cds so-called memory effect produced pack repeatedly discharged about same percentage capacity recharged theory cells get lazy wont produce past accustomed cutoff point cure discharge recharge several times row to break memory Dont worry about wearing out batteries doing discharge check month Unless lot flying Ni-Cds will quit due old age before wearing out Its experience Ni-Cds last about three five years Continuing previous example Say have receiver pack does 118 minutes discharger its new Over period three years times drop 94 minutes about 20% down could indicate cell weak course discharge time suddenly drops 50 minutes something like know something obviously wrong either case pack has go hospital surgery have open up packs case whatever necessary get voltmeter probe both ends cell Set voltmeter regular kind its lowest scale whatever reads zero about 15 volts Plug receiver pack ESVM put load transmit ters can turned ESVM used load purposes transmitter pack load applied test cell turnremembering observe polarity Usually youll find cell either stone dead reversed polarity much weaker rest cells make sure can recharge pack again individually test cells Usually suspect cell will still show bad shows good put pack discharger check cell 10 minutes suspect cell will probably run down quickly Now youve got choice either replace bad cell similar new discard whole pack pack isnt too old think remaining cells good can go ahead replace bad Most modem packs will have cells connected little straps welded cell can save strap carefully chiseling strap off old X Acto blade heftier variety new cell should prepared using rosin paste rosin-core solder put nice little blob solder end 50- 100-watt soldering iron about right trick get end cell hot quickly dont overheat ruin whole cell operation much simpler replacement cells have tabs al ready welded ends tabs heat up much faster After cell tinned its simple solder pack ifyou hold pack some sort vise fixture have hold soldering iron hand push strap down screw driver something other hand Now have reassemble pack charge put discharger see what get few charge/discharge cycles row good pack back within 5% 10% its original discharge time should okay Make note what youve done log sheet page pack may happen wind up replacing four receiver-pack cells within year case youll say should have thrown whole thing away begin Newsletter editors unite Barry Kurath news letter editor Portland Area Sailplane Society Februarys Club Month sent excel lent idea suggests Soaring club newsletter editors interested exchanging other clubs send name column name address get printed Sha zamyoure flooded newsletters Actually theres As editors know what crave good solid mate rial Nobody wants exchange learn next club meeting twenty-third need good newsletter exchange good news letter editors have developed inherited network other clubs good original article appears newsletter its astonishing fast travels around country Anyway stand ready print names addresses editors wish give go Since thought Barry gets go first Barry Kurath 3000 NE 29th Portland OR 97212 Byron Blakeslee 3134 Winnebago Dr Se dalia CO 80135 RC Aerobatics/Van Putte Continued page 43 care inclusion Reverse Knife Edge Flight lieu Three Horizontal Rolls like adding s Square Loop inclusion Triangular Rolling Loop RCA 88-20 change Advanced class maneuvers last proposed rule pass Initial Vote exception Knife Edge Flight like pattern dont like Knife Edge Flight same reason dont like 142Model Aviation $425 AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY SMIflflHI NED WE W*ZZD 7550 Sar GaS,rI Soad edeo CA 93422 456-1717 LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW new K Series family propellers has introduced three sizes 14x6 14x8 16x6 large propellers have wider blades thinner airfoil sections best performance fourstroke engines will also work very well two-strokes Mold ed same tough glass-filled nylon GIF 1/2A Series props have same incredible strength durability Planned future releases series 12 x 6 16 x 8 Priced $395 $495 WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa Calif 95401
Edition: Model Aviation - 1987/04
Page Numbers: 40, 41, 138, 139, 140, 142
Radio Control Soaring Byron Blakeslee TOM THOMPSON Albuquerque F3B sistant team manager fund-raising chairman dropped over Christmas holiday give us latest team news may have heard team Steve Work Rich Spicer Steve Lewis will represent USA against about 29 other countries summer Os nabruck West Germany Olympics RC Soaring competition will July 24 through August 2 Fliers will world-class equipmentboth aircraft radioswill state-of-the-an Moneywise F3B World Championships dont rank Americas Cup effort just important us Sailplaners Cup New York Yacht Club Just Cup syndicates raised much funds public team needs support great Sailplane community make best possible showing Germany Donations will get some nice souvenirs $5 USA F3B pin flying hat $10 USA F3B team patch infor mation sheets teams planes $15 both above course donations larger smaller shown above very welcome addition souvenirs donors names will entered sweepstakes drawing some substantial prizes donated industry sponsors prize list isnt finalized Im sure will plenty goodies won Well print sponsors prizes soon info available Please send check F3B Soaring Team Box 9328 Al buquerque NM 87119 aircraft scene Tom said Steve Work received five new Comets Peter Muller West Germany Two actually belong Steves practice partner Phil Renaud also team assistant new Comet bit smaller 112-in span 118-in Kings Steve Phil flew team selection finals can see photo Comet has conventional fuselage fairly large canopy-style cutout What unusual nose cone slips over fuselage make very sturdy assembly fuselage cross-section oval unlike normal circular section used slip-on nose cones Other construction details fuselage made Kevlar stabs hollow-core Kevlar wings foam carbon-fiber spar %-in-diameter carbonfiber joiner-rod 1mm German pine sheeting Quabeck 20 airfoil slightly thinner 9% King 10% Total unballasted weight 82 oz giving wing loading 118 oz/sq ft Steve estimates Comet will about second faster King Speed task will also have L/D well Dis tance task High-tech stuff Important news Members SOAR club Chicago Dan Pruss club have voted honor Dans contributions great hobby/sport establishing permanent trophy awarded annually AMA Nats Soaring event will known Dan Pruss Memorial Team Award SOAR endowing very gene rous $2000 Additional contributions inter ested individuals also welcome permanent trophy will reside AMA HQ Winning team members will receive plaques awards ban quet following Nats Details winning team deter mined will announced shortly SOAR new team award will certainly add interest excitement Nats will excellent complement established awards Hi Johnson highest score event Lee Renaud highest total score three Dura tion events Sid Axelrod best per formance Junior Senior class B Im sure Sailplaners closely studied Atrix construction article Harley Michaelis ap peared Decembers Model Aviation beautifully-thought-out design undoubtedly WiI Beyers sends two photos Three planes L 1 5-year-old Nelson Ka-6 jet-lIke VelocIty Squared E-Racer two Penetrators R Formula I-style Slope Racers belongIng Pete Marshall Bob VanNote flies good looks wno nave started Atrixor considering onewill want some updates available Harley update also explains use two indi vidual aileron servos altemate stab construction full-sized computer-generated airfoil tem plates rib-making Airtronics 75P Module radio owners will get much good information optimum setup description Harley has written says man ual contains errors does begin fully tap potential radio system bargain too Send SASE plus another stamp help reproduction costs Harley 26 South Roosevelt Walla Walla WA 99362 objectives column try encourage interest Scale Sailplanes happy receive letter photos Bill Liscorob Carlsbad CA think would classify Scale nut have flying RC Gliders 17 years building Scale Gliders past four years also have private-pilot-glider rating Master hang-glider rating Ive built flown full-scale Moni motorglider 1986 built nine quarterscale Gliders have four lined up year Almost RC flying has Slope Soaring Ive built flown few Power models am definitely spoiled simplicity Slope Soaring set up winch fly would toss-up between Power Glider fly ing seven Scale ships have now cant think would risk winchlaunching landing field longish grass throw off hill bet Anytime lack popularity Scale Soaring country lack interest perhaps due format contests have hang-gliding experience plenty good Slope Soaring sites across country have Scale Sailplane Nats Slope site Scale ships flying contests organized large sometimes 40 Model Aviation Bill Liscomb loves quarter-scale Sailpianes photo above launches ASW-1 5B off cliffs atTorrey Pines CA Craft weighs 8 ibstays up light ones Below shows Rowing LS-4 Its all-fiberglass weighs 13 lb indeed think Bill has offered excellent idea Next need suitable site group organize wants write offers Seriously Europe run lots Scale fun-flies/contests slopesso no reason shouldnt able put something Lets hear about Wil Byers Richiand WA wrote report Slope Soaring alive well great Pacific Northwest Wil said picked up model ing father began Soaring Don Burt Bunny 1976 interest models revitalized after very nasty hang-gliding acci dent Thats thing like about models can have terrible crash nobody gets hurt Anyway Wil organized first Mid-Columbia Slope Soaring Fun Fly 1979 says have 45 participants over 80 air planes Wil club also put two AMAsanctioned Slope races last year will again sponsor 1987 Wil goes say Slope racing new NW Soaring com munity such just beginning recog nized alternative Thermal competition Tn-City Soarers TRICS club has much support NWSS Northwest Soaring Society get events publicized fine newsletter hopeful will see fliers involved Slope Soaring affiliated group come out fly us regular basis would say primary goal club People come fly us four states also Canada pilots mixed bag range familiar names such Tom Brightbill airline pilot Canada avid flier fliers Continued page 138 high quality totally glazed ceramic engine mug must modeler standing 51/2 inches tall large 10 07 capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per order $695 o CA residents add sales taw Kreft Engines Testorl McCoy Talpan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available RIL Industries ox 5654 dena CA 91107 Phone 818 359-0016 ___________________________ Lets enjoy outdoorsin comfort III weuYour Little World Comfort Hot Burning Summer Days Convenient Size Portable Shade Thats Quick Set Up Change Instantly Give Protection Weather Size 72x 120 60 sq fi Add units double triple etcthe size Porte-Shade available lAdd usits can used trailer awnings patio covers etcl PortaShade convenient size has center psie mere useable space can straddle picnic table endel airplane er small vehicle canopy streng heat reflecting waterpreof material white no tsp aidel unique tear preet csrner ticinga no grommeta stands almost 7 taIl atmog V aluminum poles can stand worm er piny under comlert wind resistanttested te 40 MPH can adiusted easily tilt against sun can set up vertically wiodboesh Set up very quick pemnn can Sin sbsut 5 minutes Mastesad nina Manavordamsportsman Model/PFR5-60 $3995 $3 uss sealer Inqairies wandEconomy Model/EPFR4-59 $3295 $3 5P5 THE 4M CO Dept M 0549 slsawnee Dewey OK 74039 iV anal nra 5342244 April 1987 41 US F3B Assistant Team Manager Tom Thompson Above holds Steve Works new Cometa German Import Steve will fly World Champs Comets removable nose cone Below slips over front fuse 1/32 scale plastic model kits Golden Age classic aircraft Colorful highly detailed miniatures Send $2 fully illustrated cata log other kits accessories MA DEPT 81 PAWNEE ST NLLA~S SAN MARCOS IOS CALIrORNIA 92069 fast Scale models mind REPLACEMENT MODEL PARTS FOR MOTOR MUGTM V7Fvr PAN FUNG FT PAN ROLIfl PLAN 819 FThGLSSS CWLS$20 Arno PXi N PARTS PO BOX 939 OJkJ NY IA760 32 ADD I2%WTTWWY Aim BX tang begin shudder everything stopped flying right front No problem plane though just apply power continue nothing happened just slight pause climb out gallery behind agreed other airplane would have crashed least six times light wing loading forgiving nature airplane will let get away things might kill heavier model few weeks ago very windy day couldnt resist temptation try hov ering model wind ground speed dropped zero could make model rise fall playing throttle otherwise sat motionless just over head Midget Mustang such versatile airplane really does makes flying fun Scale Doc/Kruse Continued page 39 model its drawings scale ruler omitted loss points will dis astrous Color Markings Documentation have separate authenticated state ment color markings paint chips photos specifically included show color markings place include things Also include some sort labeling system brief commentary intent purpose display judges will know what youre trying show Photos Other Supporting Matedais last area along threeview probably critical far securing good static points photos displayed should aircraft have modeled Photos support efforts should discarded unless some specific logical reason clusion possible brief caption line under photo also useful help judges see what want see Good crisp black-and-white photos no smaller 4 x 5 very useful Color pictures better unless colors chosen aircraft documentation material should placed sequentially binder some sort prefer three-ring loose-leaf binder preferably oolor complimentary model Since several people will hand ling material during course contest season its best place page inside clear acetate page protector avail able office supply house scale ruler should also placed within binder possible should attached some way prevent being lost made card stock holes may punched will fit three-ring binder plastic ruler try attaching Velcro inside cover binder As stated FAT RC CL Scale rules Proof scale responsibility contestant Hopefully exercising same diligence collecting organizing packaging scale documentation typically evident construction model builder will find himself winners circle far consistently Good luck next Scale project RC Soaring/Blakeslee Continued page 41 also outstanding builders creative ideas such Ken Stuhr builds some beautiful fast models comparable anything coming Out Europe Jim Riggle Portland currently dulging himself Marks Models -scale ASW-20 project should beautiful sight see could go on know clubs have individuals never hear about wish did hill heights vary 600 1100 ftwith wind direction being little conse quence least site should work conditionall within 15-mile radius Inciden tally over Oregon coast spec tacular site known Cascade Head 1295 ft high looks directly Onto ocean lift dies landings can made face bill quite nice grass Anyone wanting fly us can contact 632 Meadows F Richland WA 99352 Thanks report Wil sounds like slopes just what Bill Liscomb looking Wil sent quite few photos letter taken top slope shows huge absolutely beautiful valley down below Unfortunately lacked sufficient contrast print magazine Wils other photos show range plane types can flown slopefrom /4-scalers Thermal ships jetFokker D-VII VK Model Aircraft PO Box 3007 Aurora 1160505 312-357-1883 ZMA Name Street Addreas City StateZip 138 Model Aviation WEBRA NOT Clowning around Anymore UNITED MODEL PRODUCTS has appointed exclusiveengine distributors Only UMP brings full line raceproven WEBRA engines backs top-quality commitment service WEBRA UMP way should because comes choice engines serious J/4I AND UMP division United Model Distributors style semi-Scale designs Formula 1-type racers look just ticket Slope Pylon Racing fact what see British magazines rage Slope ships over sorts semi-Scale takeoffs powered planes include jet fighters bomb ers airliners new orga nization called oddly enough Power Scale Soaring Association putting out news letter devoted Power Scale Soarers can imag ine seeing jobs air would great fun Dr Carl Mohs sent following summary Madison Area RC Societys National Sail plane Symposium meeting getting things Sailplaners schedule fall Proceedings Symposium will available later summerwell let know See February 1987 column info 1983 84 85 Proceedings fourth annual MARCS National Sailplane Symposium attracted 106 Sailplane enthusiasts came Madison WI two-day meet ing November 1st 2nd 1986 Early arrivals treated tour Air National Guard facility learned new respect fly AlO aircraft roll rate reproduced simulator fantastic Saturday meeting opened talk Walt Good set pace next two days learning fellowship Walt disclosed re search early history model RC flying some fascinating stories first model successfully controlled Germany CD Bob Sealy followed report F3B team selection finals set stage panel discussion future F3B US conducted John Grigg assisted Terry Edmonds Bob Sealy symposium participants showed interest possibility run ning F3B-like contests would build interest multi-task events help prepare con testants advancing full international F3B-type aircraft Warren Plohr Peter Waters brought us up date frequency situation frank discussion situation exists now will future full spectrum contests local club event Nationals Intemationals covered panel discussion led Jeff Troy CD Soaring events 85 86 Nats assisted Bob Sealy Cal Posthuma 35 CDs audience theme espoused Jeff applauded organizers serve contestants atmosphere goodwill result will hassle-free contest has certainly case Nats recent F3B team selection finals Tom Brightbill gave very well-received talk flying advanced straightwing models popular Northwest gaining popularity elsewhere thoughts development proper attitude contest-winning hit home us among us hasnt mentally given up after bad flight early contest Maynard Hill gave outstanding talks meeting electrostatic autopilots brought down house word pictures physical difficulties setting world records Power Duration Willy Pfister Gary Tschautscher made good use German heritage bringing us some latest information German Sailplane experiments documented Ger man press two days wound up aeronautical en gineer Joe Wurts bringing us expertise use composites great how-to discussion Whip Antenna Gives Hidden Performance Gone forever nightmare heli-flier dreads stepping 3 foot tenna ripping off front prized chopper just its ready fly Base loaded short WHIP ANTENNA giveshidden performance Less 7 long can mounted project front helicopter inside canopy virtually invisible OOR-AM MOOE PRODUCTS 23961 CRAFTSMAN RD CALABASAS CA 91302 818 992-0195 218 VERNON ROAD GREENVILLE PA 16125 412 588-1321 April1987 139 Realize Genuine Improvement RC Flying Geometron Transmitter Support Completely frees hands control sticks emely comfortable use wear Put levers nothing way Allows Concentrate take off instant hat No bets tying because dont have hold transmitter whilebuckles straps no cord around neck operating controls Provides full tour corner stickWearing support transnilter stays place mobilityyou cany plane Impnve accuracy stick movement because Doubles ideal ground support offers perfect transmitter held stable accessibility keeps transmitter oft ground Adjusts Iwo-stick Tx modifications adapt- Ruggedly built heat treated aluminum finished able single stick Tx easy change support plate heavy duty anodize AssefTibled stainless Simple adjustments arm length shoulder size steel fasteners Designed constructed extended Transmitter secured safety catch can removed use 695O aced second yet cannot accidentally fall Out PURCHASE ALL THREE ITEMS $995Q $99Q See dealer order direct GEOMETRON CO INC 12 INGLESIDE ROAD LEXINGTON MA 02173 617 861-6526 PROVEN TO BE TREMENDOUS HELP FOR BOTH BEGINNERS AND EXPERTSI PIus 51 50 s5ppng CO 0 200 eefeosa cash money order ori charges 8piy o0y COsSnefiha us Mass waidena add 59 LCD TIMER/STOPWATCH Counts up down preset hold additive features Time out sounds alarm auto shutoff Easy read outdoors lithium baSery 21 95* PROTECTIVE BAG Made space age aluminum costed nylon Ref ects suns heat protects Ta dirt st special fast acting closure ONCE YOU USE IT YOU WILL NEVER FLY WITHOUT rn vacuum-bagging technique producing foamand-glass wings meeting demonstrated once again wonderful feeling camaraderie exists within Sailplane movement willingness speakers bring knowledge share others symbolic best hobby Participants came four corners country enthusiasm shown old new friends met heartwarming success first four symposiums has prompted MARCS schedule fifth dates will October 31 November 1 1987 get mailing list information drop card Dr Carl Mohs 5024 Lake Mendota Dr Madison WI 53705 International Slope Race ISR coming up May well-known event started Santa Cruz RC Bees became RCM Trophy Race run South Bay Soaring So ciety name switched ISR still SBSS-sponsored race truly interna tional participants coming both Eng land Australia 48 registrants last year will held May 2 3 near Davenport CA between San Francisco Santa Cruz format head-to-head racing four planes time two-pylon course Two days heat racing culminates flyoffs break ties among top eight pilots SBSS invites interested pilots join Contact Bob DeMattei 1580 Parrot Ave Sunnyvale CA 94087 Home phone 408 732-3009 work number 415 723-2950 annual Sugarloaf Classic cross-country race will held year May 30 31 sponsoring club Capital Area Soaring Asso ciation CASA Contest Director will Charlie Wells Write Charlie 1-B Westway Greenbelt MD 20770 race info course site rolling countryside base Sug arloaf Mountain just south Frederick MD CASA real going concern over 100 members deservedly received AMAs Award Excellence last fall Visitors should able combine springtime vacation Washing ton DC enjoyable couple days races SOAR Scale Uprising described January column Because near-conflict dates Nats dates Uprising have changed August 1 2 com plete information write Steve Moskal 30S Kens ington Ave La Grange IL 60625 Sailplaners have Commodore personal computer will interested new Sailplane Design Program written young Eddie Dumas Jr Knoxville Eddies program will predict design would perform changed airfoils wing length chord CG Several airfoil data files stored basic disk including Eppler 193 205 214 Ten kit Sailplanes also disk including both sizes Sagitta Windsong Eddie says analysis process based Eric Listers Sailplane Designers Handbook plus data several Soar Tech numbers Looks very teresting cost quite reasonable too Send $20 Eddie 3220 Boomerang Lane Knoxville TN 37931 diskette full operating instructions Eddie promises updates purchasers reasonable cost develops Ni-Cds revisited February issue dis cussed using expanded-scale voltmeter ESVM check Ni-Cd packs voltage Usually ESVM used field see pack has sufficient voltage go flight indicates packs condition particular time However ESVM does tell story packs overall capacity ie flights expect per charge need Ni-Cd discharger cycler discharger tells long pack pro duced normal current flow going full charge down 1 1 volts per cell has pointed out discharger gives what could called relative time unit has fixed resistance determines current flow plus electronic circuit cut off current flow cell voltage gets down about 1 1 volts Continued page 142 Wrebcil R/C ldle4ar Glow Plugs Long Short Also.Only $189 Traditional line non-idle bar Glow Plugs e Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 Sor 7948 Wayne NJ 07470 140 Model Aviation J-3 KITTEN ULTRALIGHTJ Best New Design Award Sun Fun Lakeland Florida Features 1/4 Scale 90 span 4 cycle 45 2 cycle 40 Plans $1750 ppd Dry Ridge Models 59 McCurry Rd Weaverville NC 28787 RUBBER POWERED FLYING MODELS KIrS e PLANS e ACCESSORIES KITS TISSUE LUBE PROPELLERS SHAFTS BEARINGS WHEELS LARGE CATALOG OF QUALITY SUPPLIES KITS AND PLANS FOR RUBBER POWERED MODELS ALSO CO-2 ENGINES BLIMPS ELECTRIC AND MORE FULL C41ALOG $299 NEW NO 619 448-1818 j Peck-Pelymes - BOX 2498 -MA LA MESA CA 92041 two parameters will vary between types dis charger Thus discharge times have meaning particular unit also history discharge times pack provides infor mation its capacity Another thing remember about Ni-Cds so-called memory effect produced pack repeatedly discharged about same percentage capacity recharged theory cells get lazy wont produce past accustomed cutoff point cure discharge recharge several times row to break memory Dont worry about wearing out batteries doing discharge check month Unless lot flying Ni-Cds will quit due old age before wearing out Its experience Ni-Cds last about three five years Continuing previous example Say have receiver pack does 118 minutes discharger its new Over period three years times drop 94 minutes about 20% down could indicate cell weak course discharge time suddenly drops 50 minutes something like know something obviously wrong either case pack has go hospital surgery have open up packs case whatever necessary get voltmeter probe both ends cell Set voltmeter regular kind its lowest scale whatever reads zero about 15 volts Plug receiver pack ESVM put load transmit ters can turned ESVM used load purposes transmitter pack load applied test cell turnremembering observe polarity Usually youll find cell either stone dead reversed polarity much weaker rest cells make sure can recharge pack again individually test cells Usually suspect cell will still show bad shows good put pack discharger check cell 10 minutes suspect cell will probably run down quickly Now youve got choice either replace bad cell similar new discard whole pack pack isnt too old think remaining cells good can go ahead replace bad Most modem packs will have cells connected little straps welded cell can save strap carefully chiseling strap off old X Acto blade heftier variety new cell should prepared using rosin paste rosin-core solder put nice little blob solder end 50- 100-watt soldering iron about right trick get end cell hot quickly dont overheat ruin whole cell operation much simpler replacement cells have tabs al ready welded ends tabs heat up much faster After cell tinned its simple solder pack ifyou hold pack some sort vise fixture have hold soldering iron hand push strap down screw driver something other hand Now have reassemble pack charge put discharger see what get few charge/discharge cycles row good pack back within 5% 10% its original discharge time should okay Make note what youve done log sheet page pack may happen wind up replacing four receiver-pack cells within year case youll say should have thrown whole thing away begin Newsletter editors unite Barry Kurath news letter editor Portland Area Sailplane Society Februarys Club Month sent excel lent idea suggests Soaring club newsletter editors interested exchanging other clubs send name column name address get printed Sha zamyoure flooded newsletters Actually theres As editors know what crave good solid mate rial Nobody wants exchange learn next club meeting twenty-third need good newsletter exchange good news letter editors have developed inherited network other clubs good original article appears newsletter its astonishing fast travels around country Anyway stand ready print names addresses editors wish give go Since thought Barry gets go first Barry Kurath 3000 NE 29th Portland OR 97212 Byron Blakeslee 3134 Winnebago Dr Se dalia CO 80135 RC Aerobatics/Van Putte Continued page 43 care inclusion Reverse Knife Edge Flight lieu Three Horizontal Rolls like adding s Square Loop inclusion Triangular Rolling Loop RCA 88-20 change Advanced class maneuvers last proposed rule pass Initial Vote exception Knife Edge Flight like pattern dont like Knife Edge Flight same reason dont like 142Model Aviation $425 AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY SMIflflHI NED WE W*ZZD 7550 Sar GaS,rI Soad edeo CA 93422 456-1717 LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW new K Series family propellers has introduced three sizes 14x6 14x8 16x6 large propellers have wider blades thinner airfoil sections best performance fourstroke engines will also work very well two-strokes Mold ed same tough glass-filled nylon GIF 1/2A Series props have same incredible strength durability Planned future releases series 12 x 6 16 x 8 Priced $395 $495 WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa Calif 95401
Edition: Model Aviation - 1987/04
Page Numbers: 40, 41, 138, 139, 140, 142
Radio Control Soaring Byron Blakeslee TOM THOMPSON Albuquerque F3B sistant team manager fund-raising chairman dropped over Christmas holiday give us latest team news may have heard team Steve Work Rich Spicer Steve Lewis will represent USA against about 29 other countries summer Os nabruck West Germany Olympics RC Soaring competition will July 24 through August 2 Fliers will world-class equipmentboth aircraft radioswill state-of-the-an Moneywise F3B World Championships dont rank Americas Cup effort just important us Sailplaners Cup New York Yacht Club Just Cup syndicates raised much funds public team needs support great Sailplane community make best possible showing Germany Donations will get some nice souvenirs $5 USA F3B pin flying hat $10 USA F3B team patch infor mation sheets teams planes $15 both above course donations larger smaller shown above very welcome addition souvenirs donors names will entered sweepstakes drawing some substantial prizes donated industry sponsors prize list isnt finalized Im sure will plenty goodies won Well print sponsors prizes soon info available Please send check F3B Soaring Team Box 9328 Al buquerque NM 87119 aircraft scene Tom said Steve Work received five new Comets Peter Muller West Germany Two actually belong Steves practice partner Phil Renaud also team assistant new Comet bit smaller 112-in span 118-in Kings Steve Phil flew team selection finals can see photo Comet has conventional fuselage fairly large canopy-style cutout What unusual nose cone slips over fuselage make very sturdy assembly fuselage cross-section oval unlike normal circular section used slip-on nose cones Other construction details fuselage made Kevlar stabs hollow-core Kevlar wings foam carbon-fiber spar %-in-diameter carbonfiber joiner-rod 1mm German pine sheeting Quabeck 20 airfoil slightly thinner 9% King 10% Total unballasted weight 82 oz giving wing loading 118 oz/sq ft Steve estimates Comet will about second faster King Speed task will also have L/D well Dis tance task High-tech stuff Important news Members SOAR club Chicago Dan Pruss club have voted honor Dans contributions great hobby/sport establishing permanent trophy awarded annually AMA Nats Soaring event will known Dan Pruss Memorial Team Award SOAR endowing very gene rous $2000 Additional contributions inter ested individuals also welcome permanent trophy will reside AMA HQ Winning team members will receive plaques awards ban quet following Nats Details winning team deter mined will announced shortly SOAR new team award will certainly add interest excitement Nats will excellent complement established awards Hi Johnson highest score event Lee Renaud highest total score three Dura tion events Sid Axelrod best per formance Junior Senior class B Im sure Sailplaners closely studied Atrix construction article Harley Michaelis ap peared Decembers Model Aviation beautifully-thought-out design undoubtedly WiI Beyers sends two photos Three planes L 1 5-year-old Nelson Ka-6 jet-lIke VelocIty Squared E-Racer two Penetrators R Formula I-style Slope Racers belongIng Pete Marshall Bob VanNote flies good looks wno nave started Atrixor considering onewill want some updates available Harley update also explains use two indi vidual aileron servos altemate stab construction full-sized computer-generated airfoil tem plates rib-making Airtronics 75P Module radio owners will get much good information optimum setup description Harley has written says man ual contains errors does begin fully tap potential radio system bargain too Send SASE plus another stamp help reproduction costs Harley 26 South Roosevelt Walla Walla WA 99362 objectives column try encourage interest Scale Sailplanes happy receive letter photos Bill Liscorob Carlsbad CA think would classify Scale nut have flying RC Gliders 17 years building Scale Gliders past four years also have private-pilot-glider rating Master hang-glider rating Ive built flown full-scale Moni motorglider 1986 built nine quarterscale Gliders have four lined up year Almost RC flying has Slope Soaring Ive built flown few Power models am definitely spoiled simplicity Slope Soaring set up winch fly would toss-up between Power Glider fly ing seven Scale ships have now cant think would risk winchlaunching landing field longish grass throw off hill bet Anytime lack popularity Scale Soaring country lack interest perhaps due format contests have hang-gliding experience plenty good Slope Soaring sites across country have Scale Sailplane Nats Slope site Scale ships flying contests organized large sometimes 40 Model Aviation Bill Liscomb loves quarter-scale Sailpianes photo above launches ASW-1 5B off cliffs atTorrey Pines CA Craft weighs 8 ibstays up light ones Below shows Rowing LS-4 Its all-fiberglass weighs 13 lb indeed think Bill has offered excellent idea Next need suitable site group organize wants write offers Seriously Europe run lots Scale fun-flies/contests slopesso no reason shouldnt able put something Lets hear about Wil Byers Richiand WA wrote report Slope Soaring alive well great Pacific Northwest Wil said picked up model ing father began Soaring Don Burt Bunny 1976 interest models revitalized after very nasty hang-gliding acci dent Thats thing like about models can have terrible crash nobody gets hurt Anyway Wil organized first Mid-Columbia Slope Soaring Fun Fly 1979 says have 45 participants over 80 air planes Wil club also put two AMAsanctioned Slope races last year will again sponsor 1987 Wil goes say Slope racing new NW Soaring com munity such just beginning recog nized alternative Thermal competition Tn-City Soarers TRICS club has much support NWSS Northwest Soaring Society get events publicized fine newsletter hopeful will see fliers involved Slope Soaring affiliated group come out fly us regular basis would say primary goal club People come fly us four states also Canada pilots mixed bag range familiar names such Tom Brightbill airline pilot Canada avid flier fliers Continued page 138 high quality totally glazed ceramic engine mug must modeler standing 51/2 inches tall large 10 07 capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per order $695 o CA residents add sales taw Kreft Engines Testorl McCoy Talpan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available RIL Industries ox 5654 dena CA 91107 Phone 818 359-0016 ___________________________ Lets enjoy outdoorsin comfort III weuYour Little World Comfort Hot Burning Summer Days Convenient Size Portable Shade Thats Quick Set Up Change Instantly Give Protection Weather Size 72x 120 60 sq fi Add units double triple etcthe size Porte-Shade available lAdd usits can used trailer awnings patio covers etcl PortaShade convenient size has center psie mere useable space can straddle picnic table endel airplane er small vehicle canopy streng heat reflecting waterpreof material white no tsp aidel unique tear preet csrner ticinga no grommeta stands almost 7 taIl atmog V aluminum poles can stand worm er piny under comlert wind resistanttested te 40 MPH can adiusted easily tilt against sun can set up vertically wiodboesh Set up very quick pemnn can Sin sbsut 5 minutes Mastesad nina Manavordamsportsman Model/PFR5-60 $3995 $3 uss sealer Inqairies wandEconomy Model/EPFR4-59 $3295 $3 5P5 THE 4M CO Dept M 0549 slsawnee Dewey OK 74039 iV anal nra 5342244 April 1987 41 US F3B Assistant Team Manager Tom Thompson Above holds Steve Works new Cometa German Import Steve will fly World Champs Comets removable nose cone Below slips over front fuse 1/32 scale plastic model kits Golden Age classic aircraft Colorful highly detailed miniatures Send $2 fully illustrated cata log other kits accessories MA DEPT 81 PAWNEE ST NLLA~S SAN MARCOS IOS CALIrORNIA 92069 fast Scale models mind REPLACEMENT MODEL PARTS FOR MOTOR MUGTM V7Fvr PAN FUNG FT PAN ROLIfl PLAN 819 FThGLSSS CWLS$20 Arno PXi N PARTS PO BOX 939 OJkJ NY IA760 32 ADD I2%WTTWWY Aim BX tang begin shudder everything stopped flying right front No problem plane though just apply power continue nothing happened just slight pause climb out gallery behind agreed other airplane would have crashed least six times light wing loading forgiving nature airplane will let get away things might kill heavier model few weeks ago very windy day couldnt resist temptation try hov ering model wind ground speed dropped zero could make model rise fall playing throttle otherwise sat motionless just over head Midget Mustang such versatile airplane really does makes flying fun Scale Doc/Kruse Continued page 39 model its drawings scale ruler omitted loss points will dis astrous Color Markings Documentation have separate authenticated state ment color markings paint chips photos specifically included show color markings place include things Also include some sort labeling system brief commentary intent purpose display judges will know what youre trying show Photos Other Supporting Matedais last area along threeview probably critical far securing good static points photos displayed should aircraft have modeled Photos support efforts should discarded unless some specific logical reason clusion possible brief caption line under photo also useful help judges see what want see Good crisp black-and-white photos no smaller 4 x 5 very useful Color pictures better unless colors chosen aircraft documentation material should placed sequentially binder some sort prefer three-ring loose-leaf binder preferably oolor complimentary model Since several people will hand ling material during course contest season its best place page inside clear acetate page protector avail able office supply house scale ruler should also placed within binder possible should attached some way prevent being lost made card stock holes may punched will fit three-ring binder plastic ruler try attaching Velcro inside cover binder As stated FAT RC CL Scale rules Proof scale responsibility contestant Hopefully exercising same diligence collecting organizing packaging scale documentation typically evident construction model builder will find himself winners circle far consistently Good luck next Scale project RC Soaring/Blakeslee Continued page 41 also outstanding builders creative ideas such Ken Stuhr builds some beautiful fast models comparable anything coming Out Europe Jim Riggle Portland currently dulging himself Marks Models -scale ASW-20 project should beautiful sight see could go on know clubs have individuals never hear about wish did hill heights vary 600 1100 ftwith wind direction being little conse quence least site should work conditionall within 15-mile radius Inciden tally over Oregon coast spec tacular site known Cascade Head 1295 ft high looks directly Onto ocean lift dies landings can made face bill quite nice grass Anyone wanting fly us can contact 632 Meadows F Richland WA 99352 Thanks report Wil sounds like slopes just what Bill Liscomb looking Wil sent quite few photos letter taken top slope shows huge absolutely beautiful valley down below Unfortunately lacked sufficient contrast print magazine Wils other photos show range plane types can flown slopefrom /4-scalers Thermal ships jetFokker D-VII VK Model Aircraft PO Box 3007 Aurora 1160505 312-357-1883 ZMA Name Street Addreas City StateZip 138 Model Aviation WEBRA NOT Clowning around Anymore UNITED MODEL PRODUCTS has appointed exclusiveengine distributors Only UMP brings full line raceproven WEBRA engines backs top-quality commitment service WEBRA UMP way should because comes choice engines serious J/4I AND UMP division United Model Distributors style semi-Scale designs Formula 1-type racers look just ticket Slope Pylon Racing fact what see British magazines rage Slope ships over sorts semi-Scale takeoffs powered planes include jet fighters bomb ers airliners new orga nization called oddly enough Power Scale Soaring Association putting out news letter devoted Power Scale Soarers can imag ine seeing jobs air would great fun Dr Carl Mohs sent following summary Madison Area RC Societys National Sail plane Symposium meeting getting things Sailplaners schedule fall Proceedings Symposium will available later summerwell let know See February 1987 column info 1983 84 85 Proceedings fourth annual MARCS National Sailplane Symposium attracted 106 Sailplane enthusiasts came Madison WI two-day meet ing November 1st 2nd 1986 Early arrivals treated tour Air National Guard facility learned new respect fly AlO aircraft roll rate reproduced simulator fantastic Saturday meeting opened talk Walt Good set pace next two days learning fellowship Walt disclosed re search early history model RC flying some fascinating stories first model successfully controlled Germany CD Bob Sealy followed report F3B team selection finals set stage panel discussion future F3B US conducted John Grigg assisted Terry Edmonds Bob Sealy symposium participants showed interest possibility run ning F3B-like contests would build interest multi-task events help prepare con testants advancing full international F3B-type aircraft Warren Plohr Peter Waters brought us up date frequency situation frank discussion situation exists now will future full spectrum contests local club event Nationals Intemationals covered panel discussion led Jeff Troy CD Soaring events 85 86 Nats assisted Bob Sealy Cal Posthuma 35 CDs audience theme espoused Jeff applauded organizers serve contestants atmosphere goodwill result will hassle-free contest has certainly case Nats recent F3B team selection finals Tom Brightbill gave very well-received talk flying advanced straightwing models popular Northwest gaining popularity elsewhere thoughts development proper attitude contest-winning hit home us among us hasnt mentally given up after bad flight early contest Maynard Hill gave outstanding talks meeting electrostatic autopilots brought down house word pictures physical difficulties setting world records Power Duration Willy Pfister Gary Tschautscher made good use German heritage bringing us some latest information German Sailplane experiments documented Ger man press two days wound up aeronautical en gineer Joe Wurts bringing us expertise use composites great how-to discussion Whip Antenna Gives Hidden Performance Gone forever nightmare heli-flier dreads stepping 3 foot tenna ripping off front prized chopper just its ready fly Base loaded short WHIP ANTENNA giveshidden performance Less 7 long can mounted project front helicopter inside canopy virtually invisible OOR-AM MOOE PRODUCTS 23961 CRAFTSMAN RD CALABASAS CA 91302 818 992-0195 218 VERNON ROAD GREENVILLE PA 16125 412 588-1321 April1987 139 Realize Genuine Improvement RC Flying Geometron Transmitter Support Completely frees hands control sticks emely comfortable use wear Put levers nothing way Allows Concentrate take off instant hat No bets tying because dont have hold transmitter whilebuckles straps no cord around neck operating controls Provides full tour corner stickWearing support transnilter stays place mobilityyou cany plane Impnve accuracy stick movement because Doubles ideal ground support offers perfect transmitter held stable accessibility keeps transmitter oft ground Adjusts Iwo-stick Tx modifications adapt- Ruggedly built heat treated aluminum finished able single stick Tx easy change support plate heavy duty anodize AssefTibled stainless Simple adjustments arm length shoulder size steel fasteners Designed constructed extended Transmitter secured safety catch can removed use 695O aced second yet cannot accidentally fall Out PURCHASE ALL THREE ITEMS $995Q $99Q See dealer order direct GEOMETRON CO INC 12 INGLESIDE ROAD LEXINGTON MA 02173 617 861-6526 PROVEN TO BE TREMENDOUS HELP FOR BOTH BEGINNERS AND EXPERTSI PIus 51 50 s5ppng CO 0 200 eefeosa cash money order ori charges 8piy o0y COsSnefiha us Mass waidena add 59 LCD TIMER/STOPWATCH Counts up down preset hold additive features Time out sounds alarm auto shutoff Easy read outdoors lithium baSery 21 95* PROTECTIVE BAG Made space age aluminum costed nylon Ref ects suns heat protects Ta dirt st special fast acting closure ONCE YOU USE IT YOU WILL NEVER FLY WITHOUT rn vacuum-bagging technique producing foamand-glass wings meeting demonstrated once again wonderful feeling camaraderie exists within Sailplane movement willingness speakers bring knowledge share others symbolic best hobby Participants came four corners country enthusiasm shown old new friends met heartwarming success first four symposiums has prompted MARCS schedule fifth dates will October 31 November 1 1987 get mailing list information drop card Dr Carl Mohs 5024 Lake Mendota Dr Madison WI 53705 International Slope Race ISR coming up May well-known event started Santa Cruz RC Bees became RCM Trophy Race run South Bay Soaring So ciety name switched ISR still SBSS-sponsored race truly interna tional participants coming both Eng land Australia 48 registrants last year will held May 2 3 near Davenport CA between San Francisco Santa Cruz format head-to-head racing four planes time two-pylon course Two days heat racing culminates flyoffs break ties among top eight pilots SBSS invites interested pilots join Contact Bob DeMattei 1580 Parrot Ave Sunnyvale CA 94087 Home phone 408 732-3009 work number 415 723-2950 annual Sugarloaf Classic cross-country race will held year May 30 31 sponsoring club Capital Area Soaring Asso ciation CASA Contest Director will Charlie Wells Write Charlie 1-B Westway Greenbelt MD 20770 race info course site rolling countryside base Sug arloaf Mountain just south Frederick MD CASA real going concern over 100 members deservedly received AMAs Award Excellence last fall Visitors should able combine springtime vacation Washing ton DC enjoyable couple days races SOAR Scale Uprising described January column Because near-conflict dates Nats dates Uprising have changed August 1 2 com plete information write Steve Moskal 30S Kens ington Ave La Grange IL 60625 Sailplaners have Commodore personal computer will interested new Sailplane Design Program written young Eddie Dumas Jr Knoxville Eddies program will predict design would perform changed airfoils wing length chord CG Several airfoil data files stored basic disk including Eppler 193 205 214 Ten kit Sailplanes also disk including both sizes Sagitta Windsong Eddie says analysis process based Eric Listers Sailplane Designers Handbook plus data several Soar Tech numbers Looks very teresting cost quite reasonable too Send $20 Eddie 3220 Boomerang Lane Knoxville TN 37931 diskette full operating instructions Eddie promises updates purchasers reasonable cost develops Ni-Cds revisited February issue dis cussed using expanded-scale voltmeter ESVM check Ni-Cd packs voltage Usually ESVM used field see pack has sufficient voltage go flight indicates packs condition particular time However ESVM does tell story packs overall capacity ie flights expect per charge need Ni-Cd discharger cycler discharger tells long pack pro duced normal current flow going full charge down 1 1 volts per cell has pointed out discharger gives what could called relative time unit has fixed resistance determines current flow plus electronic circuit cut off current flow cell voltage gets down about 1 1 volts Continued page 142 Wrebcil R/C ldle4ar Glow Plugs Long Short Also.Only $189 Traditional line non-idle bar Glow Plugs e Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 Sor 7948 Wayne NJ 07470 140 Model Aviation J-3 KITTEN ULTRALIGHTJ Best New Design Award Sun Fun Lakeland Florida Features 1/4 Scale 90 span 4 cycle 45 2 cycle 40 Plans $1750 ppd Dry Ridge Models 59 McCurry Rd Weaverville NC 28787 RUBBER POWERED FLYING MODELS KIrS e PLANS e ACCESSORIES KITS TISSUE LUBE PROPELLERS SHAFTS BEARINGS WHEELS LARGE CATALOG OF QUALITY SUPPLIES KITS AND PLANS FOR RUBBER POWERED MODELS ALSO CO-2 ENGINES BLIMPS ELECTRIC AND MORE FULL C41ALOG $299 NEW NO 619 448-1818 j Peck-Pelymes - BOX 2498 -MA LA MESA CA 92041 two parameters will vary between types dis charger Thus discharge times have meaning particular unit also history discharge times pack provides infor mation its capacity Another thing remember about Ni-Cds so-called memory effect produced pack repeatedly discharged about same percentage capacity recharged theory cells get lazy wont produce past accustomed cutoff point cure discharge recharge several times row to break memory Dont worry about wearing out batteries doing discharge check month Unless lot flying Ni-Cds will quit due old age before wearing out Its experience Ni-Cds last about three five years Continuing previous example Say have receiver pack does 118 minutes discharger its new Over period three years times drop 94 minutes about 20% down could indicate cell weak course discharge time suddenly drops 50 minutes something like know something obviously wrong either case pack has go hospital surgery have open up packs case whatever necessary get voltmeter probe both ends cell Set voltmeter regular kind its lowest scale whatever reads zero about 15 volts Plug receiver pack ESVM put load transmit ters can turned ESVM used load purposes transmitter pack load applied test cell turnremembering observe polarity Usually youll find cell either stone dead reversed polarity much weaker rest cells make sure can recharge pack again individually test cells Usually suspect cell will still show bad shows good put pack discharger check cell 10 minutes suspect cell will probably run down quickly Now youve got choice either replace bad cell similar new discard whole pack pack isnt too old think remaining cells good can go ahead replace bad Most modem packs will have cells connected little straps welded cell can save strap carefully chiseling strap off old X Acto blade heftier variety new cell should prepared using rosin paste rosin-core solder put nice little blob solder end 50- 100-watt soldering iron about right trick get end cell hot quickly dont overheat ruin whole cell operation much simpler replacement cells have tabs al ready welded ends tabs heat up much faster After cell tinned its simple solder pack ifyou hold pack some sort vise fixture have hold soldering iron hand push strap down screw driver something other hand Now have reassemble pack charge put discharger see what get few charge/discharge cycles row good pack back within 5% 10% its original discharge time should okay Make note what youve done log sheet page pack may happen wind up replacing four receiver-pack cells within year case youll say should have thrown whole thing away begin Newsletter editors unite Barry Kurath news letter editor Portland Area Sailplane Society Februarys Club Month sent excel lent idea suggests Soaring club newsletter editors interested exchanging other clubs send name column name address get printed Sha zamyoure flooded newsletters Actually theres As editors know what crave good solid mate rial Nobody wants exchange learn next club meeting twenty-third need good newsletter exchange good news letter editors have developed inherited network other clubs good original article appears newsletter its astonishing fast travels around country Anyway stand ready print names addresses editors wish give go Since thought Barry gets go first Barry Kurath 3000 NE 29th Portland OR 97212 Byron Blakeslee 3134 Winnebago Dr Se dalia CO 80135 RC Aerobatics/Van Putte Continued page 43 care inclusion Reverse Knife Edge Flight lieu Three Horizontal Rolls like adding s Square Loop inclusion Triangular Rolling Loop RCA 88-20 change Advanced class maneuvers last proposed rule pass Initial Vote exception Knife Edge Flight like pattern dont like Knife Edge Flight same reason dont like 142Model Aviation $425 AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY SMIflflHI NED WE W*ZZD 7550 Sar GaS,rI Soad edeo CA 93422 456-1717 LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW new K Series family propellers has introduced three sizes 14x6 14x8 16x6 large propellers have wider blades thinner airfoil sections best performance fourstroke engines will also work very well two-strokes Mold ed same tough glass-filled nylon GIF 1/2A Series props have same incredible strength durability Planned future releases series 12 x 6 16 x 8 Priced $395 $495 WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa Calif 95401
Edition: Model Aviation - 1987/04
Page Numbers: 40, 41, 138, 139, 140, 142
Radio Control Soaring Byron Blakeslee TOM THOMPSON Albuquerque F3B sistant team manager fund-raising chairman dropped over Christmas holiday give us latest team news may have heard team Steve Work Rich Spicer Steve Lewis will represent USA against about 29 other countries summer Os nabruck West Germany Olympics RC Soaring competition will July 24 through August 2 Fliers will world-class equipmentboth aircraft radioswill state-of-the-an Moneywise F3B World Championships dont rank Americas Cup effort just important us Sailplaners Cup New York Yacht Club Just Cup syndicates raised much funds public team needs support great Sailplane community make best possible showing Germany Donations will get some nice souvenirs $5 USA F3B pin flying hat $10 USA F3B team patch infor mation sheets teams planes $15 both above course donations larger smaller shown above very welcome addition souvenirs donors names will entered sweepstakes drawing some substantial prizes donated industry sponsors prize list isnt finalized Im sure will plenty goodies won Well print sponsors prizes soon info available Please send check F3B Soaring Team Box 9328 Al buquerque NM 87119 aircraft scene Tom said Steve Work received five new Comets Peter Muller West Germany Two actually belong Steves practice partner Phil Renaud also team assistant new Comet bit smaller 112-in span 118-in Kings Steve Phil flew team selection finals can see photo Comet has conventional fuselage fairly large canopy-style cutout What unusual nose cone slips over fuselage make very sturdy assembly fuselage cross-section oval unlike normal circular section used slip-on nose cones Other construction details fuselage made Kevlar stabs hollow-core Kevlar wings foam carbon-fiber spar %-in-diameter carbonfiber joiner-rod 1mm German pine sheeting Quabeck 20 airfoil slightly thinner 9% King 10% Total unballasted weight 82 oz giving wing loading 118 oz/sq ft Steve estimates Comet will about second faster King Speed task will also have L/D well Dis tance task High-tech stuff Important news Members SOAR club Chicago Dan Pruss club have voted honor Dans contributions great hobby/sport establishing permanent trophy awarded annually AMA Nats Soaring event will known Dan Pruss Memorial Team Award SOAR endowing very gene rous $2000 Additional contributions inter ested individuals also welcome permanent trophy will reside AMA HQ Winning team members will receive plaques awards ban quet following Nats Details winning team deter mined will announced shortly SOAR new team award will certainly add interest excitement Nats will excellent complement established awards Hi Johnson highest score event Lee Renaud highest total score three Dura tion events Sid Axelrod best per formance Junior Senior class B Im sure Sailplaners closely studied Atrix construction article Harley Michaelis ap peared Decembers Model Aviation beautifully-thought-out design undoubtedly WiI Beyers sends two photos Three planes L 1 5-year-old Nelson Ka-6 jet-lIke VelocIty Squared E-Racer two Penetrators R Formula I-style Slope Racers belongIng Pete Marshall Bob VanNote flies good looks wno nave started Atrixor considering onewill want some updates available Harley update also explains use two indi vidual aileron servos altemate stab construction full-sized computer-generated airfoil tem plates rib-making Airtronics 75P Module radio owners will get much good information optimum setup description Harley has written says man ual contains errors does begin fully tap potential radio system bargain too Send SASE plus another stamp help reproduction costs Harley 26 South Roosevelt Walla Walla WA 99362 objectives column try encourage interest Scale Sailplanes happy receive letter photos Bill Liscorob Carlsbad CA think would classify Scale nut have flying RC Gliders 17 years building Scale Gliders past four years also have private-pilot-glider rating Master hang-glider rating Ive built flown full-scale Moni motorglider 1986 built nine quarterscale Gliders have four lined up year Almost RC flying has Slope Soaring Ive built flown few Power models am definitely spoiled simplicity Slope Soaring set up winch fly would toss-up between Power Glider fly ing seven Scale ships have now cant think would risk winchlaunching landing field longish grass throw off hill bet Anytime lack popularity Scale Soaring country lack interest perhaps due format contests have hang-gliding experience plenty good Slope Soaring sites across country have Scale Sailplane Nats Slope site Scale ships flying contests organized large sometimes 40 Model Aviation Bill Liscomb loves quarter-scale Sailpianes photo above launches ASW-1 5B off cliffs atTorrey Pines CA Craft weighs 8 ibstays up light ones Below shows Rowing LS-4 Its all-fiberglass weighs 13 lb indeed think Bill has offered excellent idea Next need suitable site group organize wants write offers Seriously Europe run lots Scale fun-flies/contests slopesso no reason shouldnt able put something Lets hear about Wil Byers Richiand WA wrote report Slope Soaring alive well great Pacific Northwest Wil said picked up model ing father began Soaring Don Burt Bunny 1976 interest models revitalized after very nasty hang-gliding acci dent Thats thing like about models can have terrible crash nobody gets hurt Anyway Wil organized first Mid-Columbia Slope Soaring Fun Fly 1979 says have 45 participants over 80 air planes Wil club also put two AMAsanctioned Slope races last year will again sponsor 1987 Wil goes say Slope racing new NW Soaring com munity such just beginning recog nized alternative Thermal competition Tn-City Soarers TRICS club has much support NWSS Northwest Soaring Society get events publicized fine newsletter hopeful will see fliers involved Slope Soaring affiliated group come out fly us regular basis would say primary goal club People come fly us four states also Canada pilots mixed bag range familiar names such Tom Brightbill airline pilot Canada avid flier fliers Continued page 138 high quality totally glazed ceramic engine mug must modeler standing 51/2 inches tall large 10 07 capacity its real attention getter definite collectors piece years come Only Plus $200 postage handling per order $695 o CA residents add sales taw Kreft Engines Testorl McCoy Talpan 40 RJL ENGINES Call Only Factory Source RJL INDUSTRIES Free Parts Catalog Available RIL Industries ox 5654 dena CA 91107 Phone 818 359-0016 ___________________________ Lets enjoy outdoorsin comfort III weuYour Little World Comfort Hot Burning Summer Days Convenient Size Portable Shade Thats Quick Set Up Change Instantly Give Protection Weather Size 72x 120 60 sq fi Add units double triple etcthe size Porte-Shade available lAdd usits can used trailer awnings patio covers etcl PortaShade convenient size has center psie mere useable space can straddle picnic table endel airplane er small vehicle canopy streng heat reflecting waterpreof material white no tsp aidel unique tear preet csrner ticinga no grommeta stands almost 7 taIl atmog V aluminum poles can stand worm er piny under comlert wind resistanttested te 40 MPH can adiusted easily tilt against sun can set up vertically wiodboesh Set up very quick pemnn can Sin sbsut 5 minutes Mastesad nina Manavordamsportsman Model/PFR5-60 $3995 $3 uss sealer Inqairies wandEconomy Model/EPFR4-59 $3295 $3 5P5 THE 4M CO Dept M 0549 slsawnee Dewey OK 74039 iV anal nra 5342244 April 1987 41 US F3B Assistant Team Manager Tom Thompson Above holds Steve Works new Cometa German Import Steve will fly World Champs Comets removable nose cone Below slips over front fuse 1/32 scale plastic model kits Golden Age classic aircraft Colorful highly detailed miniatures Send $2 fully illustrated cata log other kits accessories MA DEPT 81 PAWNEE ST NLLA~S SAN MARCOS IOS CALIrORNIA 92069 fast Scale models mind REPLACEMENT MODEL PARTS FOR MOTOR MUGTM V7Fvr PAN FUNG FT PAN ROLIfl PLAN 819 FThGLSSS CWLS$20 Arno PXi N PARTS PO BOX 939 OJkJ NY IA760 32 ADD I2%WTTWWY Aim BX tang begin shudder everything stopped flying right front No problem plane though just apply power continue nothing happened just slight pause climb out gallery behind agreed other airplane would have crashed least six times light wing loading forgiving nature airplane will let get away things might kill heavier model few weeks ago very windy day couldnt resist temptation try hov ering model wind ground speed dropped zero could make model rise fall playing throttle otherwise sat motionless just over head Midget Mustang such versatile airplane really does makes flying fun Scale Doc/Kruse Continued page 39 model its drawings scale ruler omitted loss points will dis astrous Color Markings Documentation have separate authenticated state ment color markings paint chips photos specifically included show color markings place include things Also include some sort labeling system brief commentary intent purpose display judges will know what youre trying show Photos Other Supporting Matedais last area along threeview probably critical far securing good static points photos displayed should aircraft have modeled Photos support efforts should discarded unless some specific logical reason clusion possible brief caption line under photo also useful help judges see what want see Good crisp black-and-white photos no smaller 4 x 5 very useful Color pictures better unless colors chosen aircraft documentation material should placed sequentially binder some sort prefer three-ring loose-leaf binder preferably oolor complimentary model Since several people will hand ling material during course contest season its best place page inside clear acetate page protector avail able office supply house scale ruler should also placed within binder possible should attached some way prevent being lost made card stock holes may punched will fit three-ring binder plastic ruler try attaching Velcro inside cover binder As stated FAT RC CL Scale rules Proof scale responsibility contestant Hopefully exercising same diligence collecting organizing packaging scale documentation typically evident construction model builder will find himself winners circle far consistently Good luck next Scale project RC Soaring/Blakeslee Continued page 41 also outstanding builders creative ideas such Ken Stuhr builds some beautiful fast models comparable anything coming Out Europe Jim Riggle Portland currently dulging himself Marks Models -scale ASW-20 project should beautiful sight see could go on know clubs have individuals never hear about wish did hill heights vary 600 1100 ftwith wind direction being little conse quence least site should work conditionall within 15-mile radius Inciden tally over Oregon coast spec tacular site known Cascade Head 1295 ft high looks directly Onto ocean lift dies landings can made face bill quite nice grass Anyone wanting fly us can contact 632 Meadows F Richland WA 99352 Thanks report Wil sounds like slopes just what Bill Liscomb looking Wil sent quite few photos letter taken top slope shows huge absolutely beautiful valley down below Unfortunately lacked sufficient contrast print magazine Wils other photos show range plane types can flown slopefrom /4-scalers Thermal ships jetFokker D-VII VK Model Aircraft PO Box 3007 Aurora 1160505 312-357-1883 ZMA Name Street Addreas City StateZip 138 Model Aviation WEBRA NOT Clowning around Anymore UNITED MODEL PRODUCTS has appointed exclusiveengine distributors Only UMP brings full line raceproven WEBRA engines backs top-quality commitment service WEBRA UMP way should because comes choice engines serious J/4I AND UMP division United Model Distributors style semi-Scale designs Formula 1-type racers look just ticket Slope Pylon Racing fact what see British magazines rage Slope ships over sorts semi-Scale takeoffs powered planes include jet fighters bomb ers airliners new orga nization called oddly enough Power Scale Soaring Association putting out news letter devoted Power Scale Soarers can imag ine seeing jobs air would great fun Dr Carl Mohs sent following summary Madison Area RC Societys National Sail plane Symposium meeting getting things Sailplaners schedule fall Proceedings Symposium will available later summerwell let know See February 1987 column info 1983 84 85 Proceedings fourth annual MARCS National Sailplane Symposium attracted 106 Sailplane enthusiasts came Madison WI two-day meet ing November 1st 2nd 1986 Early arrivals treated tour Air National Guard facility learned new respect fly AlO aircraft roll rate reproduced simulator fantastic Saturday meeting opened talk Walt Good set pace next two days learning fellowship Walt disclosed re search early history model RC flying some fascinating stories first model successfully controlled Germany CD Bob Sealy followed report F3B team selection finals set stage panel discussion future F3B US conducted John Grigg assisted Terry Edmonds Bob Sealy symposium participants showed interest possibility run ning F3B-like contests would build interest multi-task events help prepare con testants advancing full international F3B-type aircraft Warren Plohr Peter Waters brought us up date frequency situation frank discussion situation exists now will future full spectrum contests local club event Nationals Intemationals covered panel discussion led Jeff Troy CD Soaring events 85 86 Nats assisted Bob Sealy Cal Posthuma 35 CDs audience theme espoused Jeff applauded organizers serve contestants atmosphere goodwill result will hassle-free contest has certainly case Nats recent F3B team selection finals Tom Brightbill gave very well-received talk flying advanced straightwing models popular Northwest gaining popularity elsewhere thoughts development proper attitude contest-winning hit home us among us hasnt mentally given up after bad flight early contest Maynard Hill gave outstanding talks meeting electrostatic autopilots brought down house word pictures physical difficulties setting world records Power Duration Willy Pfister Gary Tschautscher made good use German heritage bringing us some latest information German Sailplane experiments documented Ger man press two days wound up aeronautical en gineer Joe Wurts bringing us expertise use composites great how-to discussion Whip Antenna Gives Hidden Performance Gone forever nightmare heli-flier dreads stepping 3 foot tenna ripping off front prized chopper just its ready fly Base loaded short WHIP ANTENNA giveshidden performance Less 7 long can mounted project front helicopter inside canopy virtually invisible OOR-AM MOOE PRODUCTS 23961 CRAFTSMAN RD CALABASAS CA 91302 818 992-0195 218 VERNON ROAD GREENVILLE PA 16125 412 588-1321 April1987 139 Realize Genuine Improvement RC Flying Geometron Transmitter Support Completely frees hands control sticks emely comfortable use wear Put levers nothing way Allows Concentrate take off instant hat No bets tying because dont have hold transmitter whilebuckles straps no cord around neck operating controls Provides full tour corner stickWearing support transnilter stays place mobilityyou cany plane Impnve accuracy stick movement because Doubles ideal ground support offers perfect transmitter held stable accessibility keeps transmitter oft ground Adjusts Iwo-stick Tx modifications adapt- Ruggedly built heat treated aluminum finished able single stick Tx easy change support plate heavy duty anodize AssefTibled stainless Simple adjustments arm length shoulder size steel fasteners Designed constructed extended Transmitter secured safety catch can removed use 695O aced second yet cannot accidentally fall Out PURCHASE ALL THREE ITEMS $995Q $99Q See dealer order direct GEOMETRON CO INC 12 INGLESIDE ROAD LEXINGTON MA 02173 617 861-6526 PROVEN TO BE TREMENDOUS HELP FOR BOTH BEGINNERS AND EXPERTSI PIus 51 50 s5ppng CO 0 200 eefeosa cash money order ori charges 8piy o0y COsSnefiha us Mass waidena add 59 LCD TIMER/STOPWATCH Counts up down preset hold additive features Time out sounds alarm auto shutoff Easy read outdoors lithium baSery 21 95* PROTECTIVE BAG Made space age aluminum costed nylon Ref ects suns heat protects Ta dirt st special fast acting closure ONCE YOU USE IT YOU WILL NEVER FLY WITHOUT rn vacuum-bagging technique producing foamand-glass wings meeting demonstrated once again wonderful feeling camaraderie exists within Sailplane movement willingness speakers bring knowledge share others symbolic best hobby Participants came four corners country enthusiasm shown old new friends met heartwarming success first four symposiums has prompted MARCS schedule fifth dates will October 31 November 1 1987 get mailing list information drop card Dr Carl Mohs 5024 Lake Mendota Dr Madison WI 53705 International Slope Race ISR coming up May well-known event started Santa Cruz RC Bees became RCM Trophy Race run South Bay Soaring So ciety name switched ISR still SBSS-sponsored race truly interna tional participants coming both Eng land Australia 48 registrants last year will held May 2 3 near Davenport CA between San Francisco Santa Cruz format head-to-head racing four planes time two-pylon course Two days heat racing culminates flyoffs break ties among top eight pilots SBSS invites interested pilots join Contact Bob DeMattei 1580 Parrot Ave Sunnyvale CA 94087 Home phone 408 732-3009 work number 415 723-2950 annual Sugarloaf Classic cross-country race will held year May 30 31 sponsoring club Capital Area Soaring Asso ciation CASA Contest Director will Charlie Wells Write Charlie 1-B Westway Greenbelt MD 20770 race info course site rolling countryside base Sug arloaf Mountain just south Frederick MD CASA real going concern over 100 members deservedly received AMAs Award Excellence last fall Visitors should able combine springtime vacation Washing ton DC enjoyable couple days races SOAR Scale Uprising described January column Because near-conflict dates Nats dates Uprising have changed August 1 2 com plete information write Steve Moskal 30S Kens ington Ave La Grange IL 60625 Sailplaners have Commodore personal computer will interested new Sailplane Design Program written young Eddie Dumas Jr Knoxville Eddies program will predict design would perform changed airfoils wing length chord CG Several airfoil data files stored basic disk including Eppler 193 205 214 Ten kit Sailplanes also disk including both sizes Sagitta Windsong Eddie says analysis process based Eric Listers Sailplane Designers Handbook plus data several Soar Tech numbers Looks very teresting cost quite reasonable too Send $20 Eddie 3220 Boomerang Lane Knoxville TN 37931 diskette full operating instructions Eddie promises updates purchasers reasonable cost develops Ni-Cds revisited February issue dis cussed using expanded-scale voltmeter ESVM check Ni-Cd packs voltage Usually ESVM used field see pack has sufficient voltage go flight indicates packs condition particular time However ESVM does tell story packs overall capacity ie flights expect per charge need Ni-Cd discharger cycler discharger tells long pack pro duced normal current flow going full charge down 1 1 volts per cell has pointed out discharger gives what could called relative time unit has fixed resistance determines current flow plus electronic circuit cut off current flow cell voltage gets down about 1 1 volts Continued page 142 Wrebcil R/C ldle4ar Glow Plugs Long Short Also.Only $189 Traditional line non-idle bar Glow Plugs e Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 Sor 7948 Wayne NJ 07470 140 Model Aviation J-3 KITTEN ULTRALIGHTJ Best New Design Award Sun Fun Lakeland Florida Features 1/4 Scale 90 span 4 cycle 45 2 cycle 40 Plans $1750 ppd Dry Ridge Models 59 McCurry Rd Weaverville NC 28787 RUBBER POWERED FLYING MODELS KIrS e PLANS e ACCESSORIES KITS TISSUE LUBE PROPELLERS SHAFTS BEARINGS WHEELS LARGE CATALOG OF QUALITY SUPPLIES KITS AND PLANS FOR RUBBER POWERED MODELS ALSO CO-2 ENGINES BLIMPS ELECTRIC AND MORE FULL C41ALOG $299 NEW NO 619 448-1818 j Peck-Pelymes - BOX 2498 -MA LA MESA CA 92041 two parameters will vary between types dis charger Thus discharge times have meaning particular unit also history discharge times pack provides infor mation its capacity Another thing remember about Ni-Cds so-called memory effect produced pack repeatedly discharged about same percentage capacity recharged theory cells get lazy wont produce past accustomed cutoff point cure discharge recharge several times row to break memory Dont worry about wearing out batteries doing discharge check month Unless lot flying Ni-Cds will quit due old age before wearing out Its experience Ni-Cds last about three five years Continuing previous example Say have receiver pack does 118 minutes discharger its new Over period three years times drop 94 minutes about 20% down could indicate cell weak course discharge time suddenly drops 50 minutes something like know something obviously wrong either case pack has go hospital surgery have open up packs case whatever necessary get voltmeter probe both ends cell Set voltmeter regular kind its lowest scale whatever reads zero about 15 volts Plug receiver pack ESVM put load transmit ters can turned ESVM used load purposes transmitter pack load applied test cell turnremembering observe polarity Usually youll find cell either stone dead reversed polarity much weaker rest cells make sure can recharge pack again individually test cells Usually suspect cell will still show bad shows good put pack discharger check cell 10 minutes suspect cell will probably run down quickly Now youve got choice either replace bad cell similar new discard whole pack pack isnt too old think remaining cells good can go ahead replace bad Most modem packs will have cells connected little straps welded cell can save strap carefully chiseling strap off old X Acto blade heftier variety new cell should prepared using rosin paste rosin-core solder put nice little blob solder end 50- 100-watt soldering iron about right trick get end cell hot quickly dont overheat ruin whole cell operation much simpler replacement cells have tabs al ready welded ends tabs heat up much faster After cell tinned its simple solder pack ifyou hold pack some sort vise fixture have hold soldering iron hand push strap down screw driver something other hand Now have reassemble pack charge put discharger see what get few charge/discharge cycles row good pack back within 5% 10% its original discharge time should okay Make note what youve done log sheet page pack may happen wind up replacing four receiver-pack cells within year case youll say should have thrown whole thing away begin Newsletter editors unite Barry Kurath news letter editor Portland Area Sailplane Society Februarys Club Month sent excel lent idea suggests Soaring club newsletter editors interested exchanging other clubs send name column name address get printed Sha zamyoure flooded newsletters Actually theres As editors know what crave good solid mate rial Nobody wants exchange learn next club meeting twenty-third need good newsletter exchange good news letter editors have developed inherited network other clubs good original article appears newsletter its astonishing fast travels around country Anyway stand ready print names addresses editors wish give go Since thought Barry gets go first Barry Kurath 3000 NE 29th Portland OR 97212 Byron Blakeslee 3134 Winnebago Dr Se dalia CO 80135 RC Aerobatics/Van Putte Continued page 43 care inclusion Reverse Knife Edge Flight lieu Three Horizontal Rolls like adding s Square Loop inclusion Triangular Rolling Loop RCA 88-20 change Advanced class maneuvers last proposed rule pass Initial Vote exception Knife Edge Flight like pattern dont like Knife Edge Flight same reason dont like 142Model Aviation $425 AVAILABLE AT AMERICAS FINEST HOBBY SHOPS DISTRIBUTED BY SMIflflHI NED WE W*ZZD 7550 Sar GaS,rI Soad edeo CA 93422 456-1717 LEADER IN SMALL AIRFOIL TECHNOLOGY MASTER AIRSCREW new K Series family propellers has introduced three sizes 14x6 14x8 16x6 large propellers have wider blades thinner airfoil sections best performance fourstroke engines will also work very well two-strokes Mold ed same tough glass-filled nylon GIF 1/2A Series props have same incredible strength durability Planned future releases series 12 x 6 16 x 8 Priced $395 $495 WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa Calif 95401