MY TURN finally arrived Yes Id already heard about pipevine rush technologythe thrillwas Id modified last years ship accept Randy Smith setup V Max 46 engine 12 x 4 three-bladed carbon-fiber prop andthe heart systema Bob Hunt carbon tuned pipe modification plane quite simple already set up ST 60 required install V-Max 46 little grinding engine bay accommodate longer crankcase some slotting mounting holes accept new pattern whole thing amounted 30-minute job Installing pipe somewhat diffs cult cut belly fuselage engine installed inverted position common Stunters wanted neat semi-enclosed configuration sufficient space permit adjusting length pipe Once rough outline drawn bot tom made rough cut followed further shap ing hole various sizes dowels cov ered 80-grit sandpaper took some time wasnt difficult next step cover interior area pit thats ran problems What Id originally wanted use / ply wood just too rigid end some scrap wing-skin material 040-in balsa proved best choice have seen shape pipe four tapered areas match simply pushed flexible skin material shaped hole made trial fit pipe Once satisfied fit pipe some extra breathing room around began Hot Stuff new sheeting fuselage struc ture same time fitted rear pipe-mount hard attachment structure pipe Lots small pieces Hot Stuff grinding produced smoothly shaped interior Some clear paint followed sanding final coat black finished off reasonably neat instal lation Thinking back fun job Now ready preflight trim Id told V-Max 46 seemed respond slightly longer pipe settings 40 engines use although both use same pipe knowledge set system pipe length l6 measured glow olue mitial high point pipe ran pressure line pipe standard uniflow vent nor mal 60-size fuel tank Based some conversa tions people know moved tank low ship installation allowed done flipped prop engine sure sounded good know well-fitted piston seal feels Randy has nice touch engines Well moment hand After checking Continued page 167 Nat Gifford used sweet-running SuperTigre 60 89 Nats ship L garner first place Senior Kaz Minatos Blue Max H teatures take-apart construction ease transporting over country contests Kaz moved US Japan couple years ago August 1990 69 Conoi Line Aerobatics Frank McMiIIan 12106 Gunter Gmve San Antonio TX 78231 Charles Reeves hasnt shown up Stunt circle years Hes back now much-modified Stiletto MA Plan No 193 Power Tom Dixon-modified Fox 40 Windy Urtnowskis new Sidewinder Mk V L uses V-Max 46 equipped tuned pipe Finish yellow black Ship right Bob McDonalds 89 Nats entry also uses 40 power tuned pipe Frank says nicest color schemes Nats ture air So prop blades expanded during assembly warped moisture evaporated cure use thin plastic tween blade form Pennyplane evolution revisited last left Pennyplane Evolution saga deter mined high-drag problem probably caused thick wing During last flying session before building new wing test flights slightly lower pitch higher flaring prop yielded highest Category time ever model753 average rpm 186 OK rpm too high since about 820 time could expect rpm manage able piece rubber So new wing using same airfoil Jim Clems very successful model built same time wing planform changed ap proximately conform used Jim Clem wing constant chord tip panels swept back inch Want know what happened first flight under-elevated second flight trim almost right showed new wing drasti cally unloaded new flexible prop rpm soared 206 much lighter rubber flight 606 conservatively wound much ceiling scrubbing put ceiling scrubbing perspective dur ing same session Jim Clems model touched ceiling eight seconds remained ceiling until almost six minutes flight landing 938an exact tie record time currently held model What next higher pitch stiffer prop power used next flight wasnt close right combo last flight hung up breaking tail boom no time repatr before session ended least new wing success month between sessions pitch three props checked set hope better range Also boom rebuilt stronger adjustable inci dence stab last chance testing will final session scheduled before Nats/USIC John son City TN However flying time has saved test flying brand-new Intermedi ate Stick model built three weeks tween three PP props did well flex ible prop averaging 172 rpm 648 flight Flights #2 prop low-pitch lowcamber prop seen photo March 89 column conclusive hung twice first flight broke prop next Number 1 prop also photo stiffer #3 prop higher camber time flight 735 165 rpm Time ceiling 18 seconds still conservative hope need better prop/rubber match USIC no chances play Ill find out much learned successful mods Johnson City See New fun event Part Tom Vallees new fliertraining package shown another pho tos abbreviated rules Max wingspan 7 max chord 25 max length 10 mo tor stick 5 max stab area 50% wing area monoplane covering can anything except microfilm all-wood prop Special rules contests Toms living room Fly using AMA rules except three 10second steers permitted winding done kitchen top three flights living room 247 229 219 Pete Staehling did 721 MiniDome Johnson City Tom got 728 Lakehurst once got 426 living room Besides fun aspect Tom finds shoebox makes adequate carrying case model excellent making Indoor demonstra tions CL Aerobatics/McMiBan Continued page 69 engine dry hit starter off running inttial impression combination very smooth out question setup smoother running 60 thats whole story course Before releasing ship takeoff brought rpm up 10300 did sound fast Frank Williams just couldnt believe speedits dif ferent commented threw rod would take us out just turned needle little first flight impression heavy line tension plane turning laps 54 seconds Obviously speed plane related sound engine point also worthy comment Up close noise level actually quite reasonable seem ing less heavy sound 60 air higher rpm produces sound just what Im used sounds like Combat ship Good Well its going take getting used to reality tank setup seemed work quite well run equal whether ship upright inverted round maneuvers nice qualityunder control probably best way describe squares differ ent feel also Im quite sure whether point good engine didnt come way other setups increased turn rate us ing smaller prop evident plane could much better corner before feel triangle really nice After couple flights thinking pleasant experience apprehension about critical nature high technol ogy disappeared sound high-rev ving engine bit normal time look few changes started trim plane out heavy line tension proved present flight elevations below 450 softer top circle Also after about five flights seen some engine runs exactly tune al though setting same rpm takeoff having reset needle flight As engine didnt have much running time wasnt concerned air did see some flights en gine seemed fall off cam point very subtle really noticeable effect up top Id told change length pipe note effect engines characteris tics latest feedback pointing pipe length 17-17 V-Max 46 So flipped plane its back pulled pipe back out its coupler bit Evaluating oper ation showed needle valve needed set richer shortened flight duration indicated fuel consumption power up Something else showed up ten dency off pipe flight flight same rpm setting ground maneuvers run anything consistent wind up 12-15 mph now wasnt tendency plane wind up going through maneuvers al though because high rpm expected SPECIALISTS INCUS TOM COX TEE DEE& REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM& STOCK PARTS VAILABLE INDIWDUALL V COMPETITIONACCESSORIES RACING WHEELS KLOTZOIL CARBON FIBER SOLID LINES ALL KINDS OFFUEL TUBING THREE BRA NDS OFGLOWPL UGS HA RD-TO-FIND HARD WARE OLD TIMER SUPPLIES COILS CONDENSERS NGK& STIlT SPARKPLUGS SILK8 COLORS QUALITYDOPE BRUSHES 5& 7LOOP 1/4RUBBER BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOYSR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER P0 WER KITS PROPS TISSUEAND OTHER SUPPLIES CYANOACRYLA TES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $300 STOCK ORDERS SHIPPED WITHIN 24 HRS August 1990 167 VERA GES 0 VER 9000 PROPS I! IMMEDIA TESHIPMENTON VISA/MC turn tour pnoter airfoil plotter wth FOILED AGAIN! C PLOT AIRFOILS IN ANY CHORD UP TO 24 INCHES MODIFY THICKNESS CAMBER & TRAILING EDGE o PLOT SKIN THICKNESS FOR SHEETED WINGS ENTER DATA EASILY VIA INTELLIGENr EDITOR USER-FRIENDLY MENU-DRIVEN OPERATION INCLUDES l5PAGE ILLUSTRATED USER MANUAL $4500 000 pbs00 00000f/I lnimaUnf Sank dm us$00 /-z.. $ ~-0 0 000100 iOMPCtXT*T COmpoOblO - nmp0 mO dot 00010 pun 0000500 pin0 two nsa nudaulno spcIy 520 003 4000 SOn C5On 00000 00O tO CYGNET Software714 496-6961 24843 Del Prado #141B Dana Point CA 92629 THE BEST FUSELAGE JIG EVER PERIOD Provides Solid Support Accurate Building Rugged Construction 7 Ply Aircraft Plywood Provides Lifetime Use Two Sizes Available Regular Fuselages Up 6 Wide Jumbo Fuselages Up 9 Wide Use Own Building Board Work Bench Base Mount Jig Station Uni-Strut Guide Rails Most Versatile Set-Up Contains Complete Hardware Instructions Including Uni-Strut Information Box 4 Standard Jig Stations 52795 Box 4 Jumbo Jig Stations 1995 TwoS ft long Guide Rails including mounting nuts 2195 IVANS MAGIC GADGET protractor device used Ivan Kristensen accurately measure aileron elevator rudder throw Takes guess work out trimming out airplane quality tool complete instructions log book carrying case1795 PLUG-IN ADJUSTABLE STAB KIT last can optimize stab incidence best flight charac teristics pair glass filled nylon adjusters included provide micro screw adjustment smaller front tube Main tube aluminum matching phenolic socket S695 Include 52 SOlitem UPS esidents Add 6% Sales Tat GATOR RIC PRODUCTS 3713 Pompano Dr acola FL 32514 1 476-8639 PLUG-IN WING ADJUSTER KIT Four glass filled nylon brackets included key wing panels front rear allow accurately adjust panel straight flight Complete hardware & instructions5995 WING TUBE & SOOETS Aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wing structure Now size models 718 diax2S 595 Ii dias25 995 11/zdias3S1495 did notice certain maneuvers such Vertical Eight Overhead Eight routine first figure obtained plane would suddenly come out top suc ceeding duplicate maneuver analysis problem time engine dropped off power Well observations after 16 flights Im going continue working combination get familiar setup Theres no question about now understanding what fliers perceiving advantages However Ill need air time before can feel know about pipe will react believe advantages will accrue good pipe combination can get workable setup quickly using known numbers Ill another column fall latest technology Tech tip days so-called bulletproof controls arrow-shaft pushrods norm solving flexing controls other things start show up work way through doing installation Space concern now hack up pristine interior fuselage worry couple things can First its always better plan before cut wood make no guarantee follow premise Take good look plans lay out travel flap-to-elevator pushrod De velop patterns formers consider following need anything just barest outline clear arrow shaft pushrod stiff arrow shaft answer dont So keep thought lets look make formers standard procedure making fuselage formers used to use %-in cross-grained balsa pushrod braces added necessary satisfactory cut out middle isnt much strength left basic approach going employ laminate wood grain layers crossed 30 angle can use either two laminations /16 %2 balsa /32 plywood Using patterns rough out shapes sheets wood point will need flat surface like some plate glass com plete laminating process Take some slow setting CyA glue outline rough formers Place part glue face up glass put other piece top grain desired cross angle Apply heavy pressure until glue kicks now have very stiff former thats ready final trimming Hit jigsaw trim finish up outline sandpaper Ive performed measurements gram scale can barely detect difference weight between laminated part %-in sheet former same shape CL Scale/Boss Continued page 70 largest size repeat test might waste bit wire its cheap price pay model will function properly ground competition maintain highest possi ble score ground handling operations forming main landing gear wire take care see axles line wheels should track exactly fore aft track toward outside flight circle model will have tendency skid along circle dur ing taxi track toward inside cir cle model will tend turn circle causing loss tension line allowing model roll free could highly dan gerous tail wheel conventional gear nose wheel tricycle gear also plays significant role models ground handling behavior strut tail wheel must made wire thick enough keep wheel hitting fuselage during landings model has tricy cle gear make nose wheel strut same size wire main landing gear tail wheels nose wheels also contribute well model will track moving ground Should tail wheel installed fixed position made swivel adjustable Some modelers install full-swiveling tail wheel eliminate models skidding during taxi theory concept may correct actual practice another thing tail wheel should deflected small stone other de bris during initial taxi phase before centrifu gal force can help keep model out lines model could turn circle freely swiveling tail wheel certainly op tion fixed adjustable type would provide greater degree control model safety Gerry Deneau indicated solution tail wheel question make adjustable mounted steering arms tail gear con nected pushrods pushrods extend forward plate bolts secure arrangement will allow tail wheel held desired position series taxi tests will help determine position provides best * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse Cat No 202Air Cleaner Fine Replacement Inserts Cat No 104 Pkl2 Inserts Coarse Cat No 204 Pk/2 Inserts Fine $275 $275 $239 $239 FITS MOST ENGINES 25and UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc PO Box 3786 center Line Michigan 48015 lAdd $250 shipping igan residents add 4% salca taxi IG3tS A monthly publication covering International RC Soaring Scene USA $17 yr $22/yr 1st Class Canada/Mexico $22/yr US funds Asia & Pacific $28/yr US funds Europe & UK $28/yr US funds Surface Mail Foreign $19/yr US funds RIC SOARING DIGEST PO Box 6680 Concord CA 94524 168 Model Aviation
Edition: Model Aviation - 1990/08
Page Numbers: 69, 167, 168
MY TURN finally arrived Yes Id already heard about pipevine rush technologythe thrillwas Id modified last years ship accept Randy Smith setup V Max 46 engine 12 x 4 three-bladed carbon-fiber prop andthe heart systema Bob Hunt carbon tuned pipe modification plane quite simple already set up ST 60 required install V-Max 46 little grinding engine bay accommodate longer crankcase some slotting mounting holes accept new pattern whole thing amounted 30-minute job Installing pipe somewhat diffs cult cut belly fuselage engine installed inverted position common Stunters wanted neat semi-enclosed configuration sufficient space permit adjusting length pipe Once rough outline drawn bot tom made rough cut followed further shap ing hole various sizes dowels cov ered 80-grit sandpaper took some time wasnt difficult next step cover interior area pit thats ran problems What Id originally wanted use / ply wood just too rigid end some scrap wing-skin material 040-in balsa proved best choice have seen shape pipe four tapered areas match simply pushed flexible skin material shaped hole made trial fit pipe Once satisfied fit pipe some extra breathing room around began Hot Stuff new sheeting fuselage struc ture same time fitted rear pipe-mount hard attachment structure pipe Lots small pieces Hot Stuff grinding produced smoothly shaped interior Some clear paint followed sanding final coat black finished off reasonably neat instal lation Thinking back fun job Now ready preflight trim Id told V-Max 46 seemed respond slightly longer pipe settings 40 engines use although both use same pipe knowledge set system pipe length l6 measured glow olue mitial high point pipe ran pressure line pipe standard uniflow vent nor mal 60-size fuel tank Based some conversa tions people know moved tank low ship installation allowed done flipped prop engine sure sounded good know well-fitted piston seal feels Randy has nice touch engines Well moment hand After checking Continued page 167 Nat Gifford used sweet-running SuperTigre 60 89 Nats ship L garner first place Senior Kaz Minatos Blue Max H teatures take-apart construction ease transporting over country contests Kaz moved US Japan couple years ago August 1990 69 Conoi Line Aerobatics Frank McMiIIan 12106 Gunter Gmve San Antonio TX 78231 Charles Reeves hasnt shown up Stunt circle years Hes back now much-modified Stiletto MA Plan No 193 Power Tom Dixon-modified Fox 40 Windy Urtnowskis new Sidewinder Mk V L uses V-Max 46 equipped tuned pipe Finish yellow black Ship right Bob McDonalds 89 Nats entry also uses 40 power tuned pipe Frank says nicest color schemes Nats ture air So prop blades expanded during assembly warped moisture evaporated cure use thin plastic tween blade form Pennyplane evolution revisited last left Pennyplane Evolution saga deter mined high-drag problem probably caused thick wing During last flying session before building new wing test flights slightly lower pitch higher flaring prop yielded highest Category time ever model753 average rpm 186 OK rpm too high since about 820 time could expect rpm manage able piece rubber So new wing using same airfoil Jim Clems very successful model built same time wing planform changed ap proximately conform used Jim Clem wing constant chord tip panels swept back inch Want know what happened first flight under-elevated second flight trim almost right showed new wing drasti cally unloaded new flexible prop rpm soared 206 much lighter rubber flight 606 conservatively wound much ceiling scrubbing put ceiling scrubbing perspective dur ing same session Jim Clems model touched ceiling eight seconds remained ceiling until almost six minutes flight landing 938an exact tie record time currently held model What next higher pitch stiffer prop power used next flight wasnt close right combo last flight hung up breaking tail boom no time repatr before session ended least new wing success month between sessions pitch three props checked set hope better range Also boom rebuilt stronger adjustable inci dence stab last chance testing will final session scheduled before Nats/USIC John son City TN However flying time has saved test flying brand-new Intermedi ate Stick model built three weeks tween three PP props did well flex ible prop averaging 172 rpm 648 flight Flights #2 prop low-pitch lowcamber prop seen photo March 89 column conclusive hung twice first flight broke prop next Number 1 prop also photo stiffer #3 prop higher camber time flight 735 165 rpm Time ceiling 18 seconds still conservative hope need better prop/rubber match USIC no chances play Ill find out much learned successful mods Johnson City See New fun event Part Tom Vallees new fliertraining package shown another pho tos abbreviated rules Max wingspan 7 max chord 25 max length 10 mo tor stick 5 max stab area 50% wing area monoplane covering can anything except microfilm all-wood prop Special rules contests Toms living room Fly using AMA rules except three 10second steers permitted winding done kitchen top three flights living room 247 229 219 Pete Staehling did 721 MiniDome Johnson City Tom got 728 Lakehurst once got 426 living room Besides fun aspect Tom finds shoebox makes adequate carrying case model excellent making Indoor demonstra tions CL Aerobatics/McMiBan Continued page 69 engine dry hit starter off running inttial impression combination very smooth out question setup smoother running 60 thats whole story course Before releasing ship takeoff brought rpm up 10300 did sound fast Frank Williams just couldnt believe speedits dif ferent commented threw rod would take us out just turned needle little first flight impression heavy line tension plane turning laps 54 seconds Obviously speed plane related sound engine point also worthy comment Up close noise level actually quite reasonable seem ing less heavy sound 60 air higher rpm produces sound just what Im used sounds like Combat ship Good Well its going take getting used to reality tank setup seemed work quite well run equal whether ship upright inverted round maneuvers nice qualityunder control probably best way describe squares differ ent feel also Im quite sure whether point good engine didnt come way other setups increased turn rate us ing smaller prop evident plane could much better corner before feel triangle really nice After couple flights thinking pleasant experience apprehension about critical nature high technol ogy disappeared sound high-rev ving engine bit normal time look few changes started trim plane out heavy line tension proved present flight elevations below 450 softer top circle Also after about five flights seen some engine runs exactly tune al though setting same rpm takeoff having reset needle flight As engine didnt have much running time wasnt concerned air did see some flights en gine seemed fall off cam point very subtle really noticeable effect up top Id told change length pipe note effect engines characteris tics latest feedback pointing pipe length 17-17 V-Max 46 So flipped plane its back pulled pipe back out its coupler bit Evaluating oper ation showed needle valve needed set richer shortened flight duration indicated fuel consumption power up Something else showed up ten dency off pipe flight flight same rpm setting ground maneuvers run anything consistent wind up 12-15 mph now wasnt tendency plane wind up going through maneuvers al though because high rpm expected SPECIALISTS INCUS TOM COX TEE DEE& REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM& STOCK PARTS VAILABLE INDIWDUALL V COMPETITIONACCESSORIES RACING WHEELS KLOTZOIL CARBON FIBER SOLID LINES ALL KINDS OFFUEL TUBING THREE BRA NDS OFGLOWPL UGS HA RD-TO-FIND HARD WARE OLD TIMER SUPPLIES COILS CONDENSERS NGK& STIlT SPARKPLUGS SILK8 COLORS QUALITYDOPE BRUSHES 5& 7LOOP 1/4RUBBER BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOYSR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER P0 WER KITS PROPS TISSUEAND OTHER SUPPLIES CYANOACRYLA TES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $300 STOCK ORDERS SHIPPED WITHIN 24 HRS August 1990 167 VERA GES 0 VER 9000 PROPS I! IMMEDIA TESHIPMENTON VISA/MC turn tour pnoter airfoil plotter wth FOILED AGAIN! C PLOT AIRFOILS IN ANY CHORD UP TO 24 INCHES MODIFY THICKNESS CAMBER & TRAILING EDGE o PLOT SKIN THICKNESS FOR SHEETED WINGS ENTER DATA EASILY VIA INTELLIGENr EDITOR USER-FRIENDLY MENU-DRIVEN OPERATION INCLUDES l5PAGE ILLUSTRATED USER MANUAL $4500 000 pbs00 00000f/I lnimaUnf Sank dm us$00 /-z.. $ ~-0 0 000100 iOMPCtXT*T COmpoOblO - nmp0 mO dot 00010 pun 0000500 pin0 two nsa nudaulno spcIy 520 003 4000 SOn C5On 00000 00O tO CYGNET Software714 496-6961 24843 Del Prado #141B Dana Point CA 92629 THE BEST FUSELAGE JIG EVER PERIOD Provides Solid Support Accurate Building Rugged Construction 7 Ply Aircraft Plywood Provides Lifetime Use Two Sizes Available Regular Fuselages Up 6 Wide Jumbo Fuselages Up 9 Wide Use Own Building Board Work Bench Base Mount Jig Station Uni-Strut Guide Rails Most Versatile Set-Up Contains Complete Hardware Instructions Including Uni-Strut Information Box 4 Standard Jig Stations 52795 Box 4 Jumbo Jig Stations 1995 TwoS ft long Guide Rails including mounting nuts 2195 IVANS MAGIC GADGET protractor device used Ivan Kristensen accurately measure aileron elevator rudder throw Takes guess work out trimming out airplane quality tool complete instructions log book carrying case1795 PLUG-IN ADJUSTABLE STAB KIT last can optimize stab incidence best flight charac teristics pair glass filled nylon adjusters included provide micro screw adjustment smaller front tube Main tube aluminum matching phenolic socket S695 Include 52 SOlitem UPS esidents Add 6% Sales Tat GATOR RIC PRODUCTS 3713 Pompano Dr acola FL 32514 1 476-8639 PLUG-IN WING ADJUSTER KIT Four glass filled nylon brackets included key wing panels front rear allow accurately adjust panel straight flight Complete hardware & instructions5995 WING TUBE & SOOETS Aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wing structure Now size models 718 diax2S 595 Ii dias25 995 11/zdias3S1495 did notice certain maneuvers such Vertical Eight Overhead Eight routine first figure obtained plane would suddenly come out top suc ceeding duplicate maneuver analysis problem time engine dropped off power Well observations after 16 flights Im going continue working combination get familiar setup Theres no question about now understanding what fliers perceiving advantages However Ill need air time before can feel know about pipe will react believe advantages will accrue good pipe combination can get workable setup quickly using known numbers Ill another column fall latest technology Tech tip days so-called bulletproof controls arrow-shaft pushrods norm solving flexing controls other things start show up work way through doing installation Space concern now hack up pristine interior fuselage worry couple things can First its always better plan before cut wood make no guarantee follow premise Take good look plans lay out travel flap-to-elevator pushrod De velop patterns formers consider following need anything just barest outline clear arrow shaft pushrod stiff arrow shaft answer dont So keep thought lets look make formers standard procedure making fuselage formers used to use %-in cross-grained balsa pushrod braces added necessary satisfactory cut out middle isnt much strength left basic approach going employ laminate wood grain layers crossed 30 angle can use either two laminations /16 %2 balsa /32 plywood Using patterns rough out shapes sheets wood point will need flat surface like some plate glass com plete laminating process Take some slow setting CyA glue outline rough formers Place part glue face up glass put other piece top grain desired cross angle Apply heavy pressure until glue kicks now have very stiff former thats ready final trimming Hit jigsaw trim finish up outline sandpaper Ive performed measurements gram scale can barely detect difference weight between laminated part %-in sheet former same shape CL Scale/Boss Continued page 70 largest size repeat test might waste bit wire its cheap price pay model will function properly ground competition maintain highest possi ble score ground handling operations forming main landing gear wire take care see axles line wheels should track exactly fore aft track toward outside flight circle model will have tendency skid along circle dur ing taxi track toward inside cir cle model will tend turn circle causing loss tension line allowing model roll free could highly dan gerous tail wheel conventional gear nose wheel tricycle gear also plays significant role models ground handling behavior strut tail wheel must made wire thick enough keep wheel hitting fuselage during landings model has tricy cle gear make nose wheel strut same size wire main landing gear tail wheels nose wheels also contribute well model will track moving ground Should tail wheel installed fixed position made swivel adjustable Some modelers install full-swiveling tail wheel eliminate models skidding during taxi theory concept may correct actual practice another thing tail wheel should deflected small stone other de bris during initial taxi phase before centrifu gal force can help keep model out lines model could turn circle freely swiveling tail wheel certainly op tion fixed adjustable type would provide greater degree control model safety Gerry Deneau indicated solution tail wheel question make adjustable mounted steering arms tail gear con nected pushrods pushrods extend forward plate bolts secure arrangement will allow tail wheel held desired position series taxi tests will help determine position provides best * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse Cat No 202Air Cleaner Fine Replacement Inserts Cat No 104 Pkl2 Inserts Coarse Cat No 204 Pk/2 Inserts Fine $275 $275 $239 $239 FITS MOST ENGINES 25and UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc PO Box 3786 center Line Michigan 48015 lAdd $250 shipping igan residents add 4% salca taxi IG3tS A monthly publication covering International RC Soaring Scene USA $17 yr $22/yr 1st Class Canada/Mexico $22/yr US funds Asia & Pacific $28/yr US funds Europe & UK $28/yr US funds Surface Mail Foreign $19/yr US funds RIC SOARING DIGEST PO Box 6680 Concord CA 94524 168 Model Aviation
Edition: Model Aviation - 1990/08
Page Numbers: 69, 167, 168
MY TURN finally arrived Yes Id already heard about pipevine rush technologythe thrillwas Id modified last years ship accept Randy Smith setup V Max 46 engine 12 x 4 three-bladed carbon-fiber prop andthe heart systema Bob Hunt carbon tuned pipe modification plane quite simple already set up ST 60 required install V-Max 46 little grinding engine bay accommodate longer crankcase some slotting mounting holes accept new pattern whole thing amounted 30-minute job Installing pipe somewhat diffs cult cut belly fuselage engine installed inverted position common Stunters wanted neat semi-enclosed configuration sufficient space permit adjusting length pipe Once rough outline drawn bot tom made rough cut followed further shap ing hole various sizes dowels cov ered 80-grit sandpaper took some time wasnt difficult next step cover interior area pit thats ran problems What Id originally wanted use / ply wood just too rigid end some scrap wing-skin material 040-in balsa proved best choice have seen shape pipe four tapered areas match simply pushed flexible skin material shaped hole made trial fit pipe Once satisfied fit pipe some extra breathing room around began Hot Stuff new sheeting fuselage struc ture same time fitted rear pipe-mount hard attachment structure pipe Lots small pieces Hot Stuff grinding produced smoothly shaped interior Some clear paint followed sanding final coat black finished off reasonably neat instal lation Thinking back fun job Now ready preflight trim Id told V-Max 46 seemed respond slightly longer pipe settings 40 engines use although both use same pipe knowledge set system pipe length l6 measured glow olue mitial high point pipe ran pressure line pipe standard uniflow vent nor mal 60-size fuel tank Based some conversa tions people know moved tank low ship installation allowed done flipped prop engine sure sounded good know well-fitted piston seal feels Randy has nice touch engines Well moment hand After checking Continued page 167 Nat Gifford used sweet-running SuperTigre 60 89 Nats ship L garner first place Senior Kaz Minatos Blue Max H teatures take-apart construction ease transporting over country contests Kaz moved US Japan couple years ago August 1990 69 Conoi Line Aerobatics Frank McMiIIan 12106 Gunter Gmve San Antonio TX 78231 Charles Reeves hasnt shown up Stunt circle years Hes back now much-modified Stiletto MA Plan No 193 Power Tom Dixon-modified Fox 40 Windy Urtnowskis new Sidewinder Mk V L uses V-Max 46 equipped tuned pipe Finish yellow black Ship right Bob McDonalds 89 Nats entry also uses 40 power tuned pipe Frank says nicest color schemes Nats ture air So prop blades expanded during assembly warped moisture evaporated cure use thin plastic tween blade form Pennyplane evolution revisited last left Pennyplane Evolution saga deter mined high-drag problem probably caused thick wing During last flying session before building new wing test flights slightly lower pitch higher flaring prop yielded highest Category time ever model753 average rpm 186 OK rpm too high since about 820 time could expect rpm manage able piece rubber So new wing using same airfoil Jim Clems very successful model built same time wing planform changed ap proximately conform used Jim Clem wing constant chord tip panels swept back inch Want know what happened first flight under-elevated second flight trim almost right showed new wing drasti cally unloaded new flexible prop rpm soared 206 much lighter rubber flight 606 conservatively wound much ceiling scrubbing put ceiling scrubbing perspective dur ing same session Jim Clems model touched ceiling eight seconds remained ceiling until almost six minutes flight landing 938an exact tie record time currently held model What next higher pitch stiffer prop power used next flight wasnt close right combo last flight hung up breaking tail boom no time repatr before session ended least new wing success month between sessions pitch three props checked set hope better range Also boom rebuilt stronger adjustable inci dence stab last chance testing will final session scheduled before Nats/USIC John son City TN However flying time has saved test flying brand-new Intermedi ate Stick model built three weeks tween three PP props did well flex ible prop averaging 172 rpm 648 flight Flights #2 prop low-pitch lowcamber prop seen photo March 89 column conclusive hung twice first flight broke prop next Number 1 prop also photo stiffer #3 prop higher camber time flight 735 165 rpm Time ceiling 18 seconds still conservative hope need better prop/rubber match USIC no chances play Ill find out much learned successful mods Johnson City See New fun event Part Tom Vallees new fliertraining package shown another pho tos abbreviated rules Max wingspan 7 max chord 25 max length 10 mo tor stick 5 max stab area 50% wing area monoplane covering can anything except microfilm all-wood prop Special rules contests Toms living room Fly using AMA rules except three 10second steers permitted winding done kitchen top three flights living room 247 229 219 Pete Staehling did 721 MiniDome Johnson City Tom got 728 Lakehurst once got 426 living room Besides fun aspect Tom finds shoebox makes adequate carrying case model excellent making Indoor demonstra tions CL Aerobatics/McMiBan Continued page 69 engine dry hit starter off running inttial impression combination very smooth out question setup smoother running 60 thats whole story course Before releasing ship takeoff brought rpm up 10300 did sound fast Frank Williams just couldnt believe speedits dif ferent commented threw rod would take us out just turned needle little first flight impression heavy line tension plane turning laps 54 seconds Obviously speed plane related sound engine point also worthy comment Up close noise level actually quite reasonable seem ing less heavy sound 60 air higher rpm produces sound just what Im used sounds like Combat ship Good Well its going take getting used to reality tank setup seemed work quite well run equal whether ship upright inverted round maneuvers nice qualityunder control probably best way describe squares differ ent feel also Im quite sure whether point good engine didnt come way other setups increased turn rate us ing smaller prop evident plane could much better corner before feel triangle really nice After couple flights thinking pleasant experience apprehension about critical nature high technol ogy disappeared sound high-rev ving engine bit normal time look few changes started trim plane out heavy line tension proved present flight elevations below 450 softer top circle Also after about five flights seen some engine runs exactly tune al though setting same rpm takeoff having reset needle flight As engine didnt have much running time wasnt concerned air did see some flights en gine seemed fall off cam point very subtle really noticeable effect up top Id told change length pipe note effect engines characteris tics latest feedback pointing pipe length 17-17 V-Max 46 So flipped plane its back pulled pipe back out its coupler bit Evaluating oper ation showed needle valve needed set richer shortened flight duration indicated fuel consumption power up Something else showed up ten dency off pipe flight flight same rpm setting ground maneuvers run anything consistent wind up 12-15 mph now wasnt tendency plane wind up going through maneuvers al though because high rpm expected SPECIALISTS INCUS TOM COX TEE DEE& REED ENGINES 020S 049S 051S 074S & 09S ALL CUSTOM& STOCK PARTS VAILABLE INDIWDUALL V COMPETITIONACCESSORIES RACING WHEELS KLOTZOIL CARBON FIBER SOLID LINES ALL KINDS OFFUEL TUBING THREE BRA NDS OFGLOWPL UGS HA RD-TO-FIND HARD WARE OLD TIMER SUPPLIES COILS CONDENSERS NGK& STIlT SPARKPLUGS SILK8 COLORS QUALITYDOPE BRUSHES 5& 7LOOP 1/4RUBBER BANDS TRANSISTOR IGNITION SYSTEMS RESISTOR HIGH TENSION LEADS 1/2A TEXACO PLA YBOYSR KIT 1/2A TEXACO ENGINES & PARTS KSB & IGNITION TIMERS RUBBER P0 WER KITS PROPS TISSUEAND OTHER SUPPLIES CYANOACRYLA TES & EPOXIES ORDER BY MAIL OR PHONE 619 728-4365 SORRY NO COD VISA & MASTERCARD WELCOME MINIMUM MERCHANDISE ORDER $1000 SHIPPING HANDLING AND INSURANCE FEE $300 STOCK ORDERS SHIPPED WITHIN 24 HRS August 1990 167 VERA GES 0 VER 9000 PROPS I! IMMEDIA TESHIPMENTON VISA/MC turn tour pnoter airfoil plotter wth FOILED AGAIN! C PLOT AIRFOILS IN ANY CHORD UP TO 24 INCHES MODIFY THICKNESS CAMBER & TRAILING EDGE o PLOT SKIN THICKNESS FOR SHEETED WINGS ENTER DATA EASILY VIA INTELLIGENr EDITOR USER-FRIENDLY MENU-DRIVEN OPERATION INCLUDES l5PAGE ILLUSTRATED USER MANUAL $4500 000 pbs00 00000f/I lnimaUnf Sank dm us$00 /-z.. $ ~-0 0 000100 iOMPCtXT*T COmpoOblO - nmp0 mO dot 00010 pun 0000500 pin0 two nsa nudaulno spcIy 520 003 4000 SOn C5On 00000 00O tO CYGNET Software714 496-6961 24843 Del Prado #141B Dana Point CA 92629 THE BEST FUSELAGE JIG EVER PERIOD Provides Solid Support Accurate Building Rugged Construction 7 Ply Aircraft Plywood Provides Lifetime Use Two Sizes Available Regular Fuselages Up 6 Wide Jumbo Fuselages Up 9 Wide Use Own Building Board Work Bench Base Mount Jig Station Uni-Strut Guide Rails Most Versatile Set-Up Contains Complete Hardware Instructions Including Uni-Strut Information Box 4 Standard Jig Stations 52795 Box 4 Jumbo Jig Stations 1995 TwoS ft long Guide Rails including mounting nuts 2195 IVANS MAGIC GADGET protractor device used Ivan Kristensen accurately measure aileron elevator rudder throw Takes guess work out trimming out airplane quality tool complete instructions log book carrying case1795 PLUG-IN ADJUSTABLE STAB KIT last can optimize stab incidence best flight charac teristics pair glass filled nylon adjusters included provide micro screw adjustment smaller front tube Main tube aluminum matching phenolic socket S695 Include 52 SOlitem UPS esidents Add 6% Sales Tat GATOR RIC PRODUCTS 3713 Pompano Dr acola FL 32514 1 476-8639 PLUG-IN WING ADJUSTER KIT Four glass filled nylon brackets included key wing panels front rear allow accurately adjust panel straight flight Complete hardware & instructions5995 WING TUBE & SOOETS Aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wing structure Now size models 718 diax2S 595 Ii dias25 995 11/zdias3S1495 did notice certain maneuvers such Vertical Eight Overhead Eight routine first figure obtained plane would suddenly come out top suc ceeding duplicate maneuver analysis problem time engine dropped off power Well observations after 16 flights Im going continue working combination get familiar setup Theres no question about now understanding what fliers perceiving advantages However Ill need air time before can feel know about pipe will react believe advantages will accrue good pipe combination can get workable setup quickly using known numbers Ill another column fall latest technology Tech tip days so-called bulletproof controls arrow-shaft pushrods norm solving flexing controls other things start show up work way through doing installation Space concern now hack up pristine interior fuselage worry couple things can First its always better plan before cut wood make no guarantee follow premise Take good look plans lay out travel flap-to-elevator pushrod De velop patterns formers consider following need anything just barest outline clear arrow shaft pushrod stiff arrow shaft answer dont So keep thought lets look make formers standard procedure making fuselage formers used to use %-in cross-grained balsa pushrod braces added necessary satisfactory cut out middle isnt much strength left basic approach going employ laminate wood grain layers crossed 30 angle can use either two laminations /16 %2 balsa /32 plywood Using patterns rough out shapes sheets wood point will need flat surface like some plate glass com plete laminating process Take some slow setting CyA glue outline rough formers Place part glue face up glass put other piece top grain desired cross angle Apply heavy pressure until glue kicks now have very stiff former thats ready final trimming Hit jigsaw trim finish up outline sandpaper Ive performed measurements gram scale can barely detect difference weight between laminated part %-in sheet former same shape CL Scale/Boss Continued page 70 largest size repeat test might waste bit wire its cheap price pay model will function properly ground competition maintain highest possi ble score ground handling operations forming main landing gear wire take care see axles line wheels should track exactly fore aft track toward outside flight circle model will have tendency skid along circle dur ing taxi track toward inside cir cle model will tend turn circle causing loss tension line allowing model roll free could highly dan gerous tail wheel conventional gear nose wheel tricycle gear also plays significant role models ground handling behavior strut tail wheel must made wire thick enough keep wheel hitting fuselage during landings model has tricy cle gear make nose wheel strut same size wire main landing gear tail wheels nose wheels also contribute well model will track moving ground Should tail wheel installed fixed position made swivel adjustable Some modelers install full-swiveling tail wheel eliminate models skidding during taxi theory concept may correct actual practice another thing tail wheel should deflected small stone other de bris during initial taxi phase before centrifu gal force can help keep model out lines model could turn circle freely swiveling tail wheel certainly op tion fixed adjustable type would provide greater degree control model safety Gerry Deneau indicated solution tail wheel question make adjustable mounted steering arms tail gear con nected pushrods pushrods extend forward plate bolts secure arrangement will allow tail wheel held desired position series taxi tests will help determine position provides best * * Long Engine Life * * Use BRU LINE Air Cleaner Completely Fuel Proof Nylon Rubber Parts Cat No 102 Air Cleaner Coarse Cat No 202Air Cleaner Fine Replacement Inserts Cat No 104 Pkl2 Inserts Coarse Cat No 204 Pk/2 Inserts Fine $275 $275 $239 $239 FITS MOST ENGINES 25and UP SEE YOUR LOCAL HOBBY DEALER IF UNAVAILABLE LOCALLY SEND TO Bru Line Industries Inc PO Box 3786 center Line Michigan 48015 lAdd $250 shipping igan residents add 4% salca taxi IG3tS A monthly publication covering International RC Soaring Scene USA $17 yr $22/yr 1st Class Canada/Mexico $22/yr US funds Asia & Pacific $28/yr US funds Europe & UK $28/yr US funds Surface Mail Foreign $19/yr US funds RIC SOARING DIGEST PO Box 6680 Concord CA 94524 168 Model Aviation