INTERNATIONAL SLOPE RACE ISR just about Itll weekend July 7-8 Yeah thats about week time read probably still have time prereg ister CD Ray Kuntz youd better hurry event has advance registration want fly would best give him call 1-213/645-4269 work Out details him number manufacturers have ap proached donations used part awards presentation rewarding unsung workers flagmen lap counters timers etc will immeasurable help bringing event off So far have responses Fu taba Sheldons Hobbies VS Saliplanes number others youre interested just showing up can lend hand making event success please drop Any help can lend would greatly appreciated 1990 Torrey Pines Scale Fun Fly 1989 ver sion fun fly successful boys down south have decided move event up Labor Day weekend fliers especially out state will able attend years event will take place Septem ber 1-3 includes official hotel Friday night get-together Saturday night banquet raffle Pilots Choice Award As writing details havent worked out Im sure things will well under way time read information get touch publicity chairman Charlie Morey 2601 E 19th Street #29 Signal Hill CA 90804 phone 1-213/494-3712 Aero L-39 Albatros number companies producing PSS Power Scale Soaring ships seems increase daily nice variety different aircraft being kitted hasnt increased proportionally seems getting lots F-16s P-51s etc too much else Dont get wrong As far am con cerned the merrier want build model P-Si like having opportunity choose number different kits get exact style performance Im looking would also nice able choose larger selection different aircraft Thats enough editorial reason went off subject recently received letter photos describing new PSS ship brand-new company Vein Hunt Models Vein has chosen Czechoslovaldan Aero L-39 Albatros first kit Whats L-39 Alba tros Dont ask point Vein has broken crowd produced very unique very attractive model Ill step aside let Vein take Im writing introduce first Vein Hunt model Ads will soon appear Czechoslo vakian Aero L-39 Albatros isnt first ef fort airplane designer Ive building model airplanes 30 years thought would best subject en try manufacturing Hill Soaring has come Left Daryl Perkins Eliminator banks base turn Davenport Eliminator Mark Allens designs few years ago looks like will plane beat upcoming International Slope Race Middle Mark Allens latest Swift 800 very similar ultraquick Eliminator Ill taking look new design future column will feature Mark Incredible success has recent designs Right Theres some serious racing going Mark Alien turns inside Ron Vann Daryl Perkins collide Daryl few seconds later go down Daryl managed stay airborne edged out Ron SBSS Slope Race flyoff 52 Model Aviation Radio Control Slope Soaring Mark Triebes 20794 Krelsler Ct Saratega CA 95070 Czechoslovakian Aero L-39 Albatros will soon available Vein Hunt Models want something unique local slope might what youre looking Hunt photo Daryl Perkins Eliminator gets good heave John Dvoraks Electra B3 launched Jay strong coastal winds Ron Brehm Electra profiled Vann incredible cleanness de June column has dominated European sign can seen angle Very thin F3F Racing past couple years airfoils low overall drag combine its no match ships todays circuit make todays Slope Racers quickest yet age PSS has increasing interest worldwide America will now have kit truly handsome consistent dedicated modeler loves make model airplanes first model has developed over two-year period along two others per fect aerodynamics manufacturing hope extend line over next few years several PSS Gliders can say youll hearing more Vein Hunt Models time goes fiberglass/carbon-fiber fuselage came years experimenting materials testing test models over over es tablish flyability weather conditions well durability Hill Soaring know can take its toll model thats another reason tough construction Ive rolled model hill several occasions major damage Hope youre excited about model am Yep sure am Vein might few people Out wondering Vein picked such unknown aircraft thinking Geez Vein get programbut think its great Its common knowledge Slopers little bit different just uniqueness us makes Slope Soaring much fun like bring out interesting unique models slope opinion L-39 fits per fectly Ill shut up now give few specif ics kit L-39 spans 52 weighs about 48 oz uses modified Eppler 205 airfoil kit includes carbon-fiber-reinforced glass fuse lage rudder fin molded fuselage foam cores both wing stabs balsa sheeting glass canopy frame formed butyrate canopy glass tip tanks information get touch Vein 4950 Butternut Tr Juneau WI 53039 phone 1-414/349-8101 Turnin burnin Miguelito latest edition Wind newsletter Santa Maria Soaring Society SMSS re port first Slope Races 1990 season big name racers get some early season racing Steve Birchers report action feel need speed Slope Racing way get fair dose larg est numbers entries ever least since Ive around SMSS contest Eighteen pilots came Miguelito bill March 11 making trek far away Escondido Bay Area wind definitely working Rudys wind meter never below 30 mph pegged 50 much daynot always looking repeated blasts cold rain hit shower cells came past dropped light dose hailshades 87 Cross Country lift good super could rough tricky Two fliers made trip vain Dean Clark Milt McIntosh both crashed practice runs prior start racing Another entrant opted watch wound up 15 actual racers first round set up five groups three flying six-lap heats Bay Area crew es tablished come race Mark Allen Falcon 880 fame Eliminator-armed co borIs Ron Vann Daryl Perkins fast sharp turns Marks planes dominated race top three finishers would flying Allen designstwo Eliminators split Swift 800 Bill Hull Los Gatos up leaders until #1 ship crashed due radio inter ference Bills ff2 wasnt quite hot first Southern contingent led al Continued page 149 battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field August 1990 53 B&P Associates Gives Total Flight Line FREEDOM RC Slope Soaring/Triebes Continued page 53 ways competitive Joe Wurts Joe started day typical JW-original planeszero points finish beauty Joe doesnt paint planes rulebut fast right up best em hard landing took off tail Joe switched Swift 800 never missed beat Another LA area flier name escapes doing very well until Falcon 880 stuffed pressed small four-footer fun-type ship wasnt up handling heavy winds Local boys Bill Highfield Rich BeardsIcy did pretty well considering up against some heavy talent Bill flew Jaguar think day Richs original-design tisse Mk-whatever showing lots promise development continues Rich winner Oh s_____ award clean pair skiv vies sheer dumb luck Rich launching Metisse third round wind flipped back passing between Joe Wurts Daryl Perkins less six feet apart Metisse spans about eight feet plane just missed parting Joes hair other side Maybe Daryl oughta get fresh pair shorts too other amazing part story af ter Rich went running back try save plane continued start countdown thinking Rich Out race find hed gotten plane down ground safely still made heat Amazing least three other guys didnt have kinda luck Kirk Olsen Chris Pappas dad John busted up planes Kirks Snipe cracked fuselage spent Sat urday night repairing following crash practicing Chris V-Max fresh off repair bench too having snapped wing week before Both V-Maxes seemed have servorelated problems Possibly pitcheron control system used Max puts extreme loads servos wind heavy Premium hightorque servos metal gears may answer real good guys flagmen got sandblasted wind-burned rained iced cussed fun deep thanks fellas couldnt have done timers lap counters rest thanks Next time will work some tangible way thank crew ybe Dominos will deliver up Canyon Anyway will next time Slope Racing fun slightly addic tive reason included report column besides its obvious entertainment value give have never chance fly see Slope Race some idea flavor first race season Bay Area held April 1 turnout great over 30 pilots race quite number others just fun-fly and/or watch Because South Bay Soaring Society club races held Davenport op portunity get feel slope before ISR number pilots came up southern California including Daryl Perkins Joe Wurts almost local regulars tendance An interesting aspect event its format Slope Races have held past have just races People weren t involved racing usually didnt attend spectators event different billed Slope fun fly/race try attract people out race slope generalcertain fun fly events held between rounds racing As exam ple between first second rounds CD George Paige organized impromptu Aerobat ics contest contestant given 30 seconds show stuff judges end winner particular day Joe Wurts Theres no doubt about maneuver won him precision midair should have gotten lOs across board Too poor little Swift 400 Joe flying especially since Mark Allens plane addition distinct fun fly events time also slated just flying gave people came spectate chance fly slope since some fliers first time thoroughly enjoyed experience particular club has problems getting fliers out slope may good way attract Ive found talking number begin ning fliers intimidated advanced skills high-tech planes up per echelon Slope fliers similar prob lems exist getting people F3B fly ing what people dont realize majority Slopers out just av erage fliers having good time dont need ultra high-tech plane years experience have fun slope need right attitude let hang out have some fun Pushrods servos nice features Silent Flyer newsletter South Bay Soar ing Society large number contributions August 1990 149 Mere Fun 62Y2 inches 770 square inches 10cc 90 120 four stroke Designed AMA FAI Turn-around pattern Foam wing stab 3-32 Balsa sheet covering Tricycle conven tional gear fixed retracts Rear side exhaust fiber glass canopy Very positive maneuverable XLT SPECIFIC Wing Span65 inches Length65 inches Wing Area845 square inches Recommended Engine Size 10 cc 90 120 four stroke XLT designed tuned pipe re tract landing gears Capable AMA Turn-around pattern Rear side ex haust SPECIFICATIONS Wing Span Wing Area Engine Size 63Y4 inches 700 square inches 50-60 Glow 90 four stroke fun sport pattern orturn-around can done Utter Chaos completely built up Balsa construction Canopy engine mount included years proven flying reliablity BRIDI AIRCRAFT DESIGNS INC 23625 Pineforest Lane Harbor City California 90710 213 549-8264 326-5013 SEE YOUR FAVORITE HOBBY SHOP OR RETAIL OUTLETW Dealer Inqurles Invited made members club its reg ular contributors Sailpianer extraordinaire Brian Chan La-Tech Stuff column gives helpful hints insights various areas modeling latest edition discusses some characteristics pushrods servos Pushrods function transmit control motion servos control sur faces play very important role control ling airplane pushrods installed properly less useless doesnt matter good RC unit cant trans mit motion control surfaces through sloppy control linkage ie cannot control airplane several pushrod systems available market come sizes shapes Lets first talk about commercially available linkages common ones made nylon tubing eg Nyrods Theyre ny lon tubes another nylon tube inside pushrod very light weight dimensionally stable respect changes temperature nice hot summer day ar rive flying site have plane trimmed 600 F temperature reaches 900 F noon plane doesnt fly like previous flight nylon expandednot much just enough change trim especially longer pushrods installed Sailplane three feet long isnt uncommon Theres new system Laser Rod Du-Bro just coming market claims dimension ally stable 75% less growth shrinkage will still change due temperature fluctua tions also nylon-tubing-with-steelcable system nylon housing steel ca ble better types work better hous ing anchored side fuselage en tire length housing art picking cables kinds steel cable some pushing some pulling pulling versions usu ally flexible might think flexible kind better Wrong Theyre great under ten sion ie pulling can compress means theyre shorter compressed thus creating sloppiness flutter control surfaces best kind cable use kind called 7 x 1 have seven wires wrapped around single center core less flexible center core keeps cable same length being pushed pulled its relatively straight line between servo control horn can replace cable length pi ano wire best way because piano Continued page 169 RC Electrics/Kopski Continued page 43 Electric fliers interests Chokes installed receiver leads speed controls discussed December 89 col umn offering discussed simple low-cost solution stubborn motor noise problems encountered some receivers found last summer putting small radio frequency RF choke three speed control leads connect receiver could make difference between flying being able fly chokes available Ace R/C Inc p/n LL 106 Since column appeared Ive received sev eral reader inputs also found comment an150 Model Aviation other column indicating success method So far no has reported failure readers may having impossible re ceiver motor noise problems may refer once again past issue possible solution difficulties includes full info no guarantees will fix cases its worth shot since total cost less $2 kind enough commentthank Speed control adjustments seem pose prob lems some modelers Id like offer some help speed control Ive seen has least adjustment screw have two Ive seen three special situation adjustments basically used match up operation control transmitters throttle stick operation Adjust ments necessary because pulse width modulation characteristics transmitters vary because would rather difficult and/or costly build speed controls having pre cise operational characteristics no adjust ments Besides adjustments allow personaliza tion control operation Thus adjust ments used bring together almost ra dio almost speed control almost per sonal preferences about things should operate what does mean means very likely given speed control adjustment set up liking radio brand may work same another brand would have readjusted means although may like control tune-up because harmo nizes transmitter control stick opera tion may preferred another flier perhaps its best planes Heres detail Normally speed control should adjusted throttle stick trim fully retarded down position motor completely off Also throttle stick fully forward up motor should fully course stick intermediate position motor should some intermedi ate speed detail al ways best have deadband about two clicks throttle stick stick down motor fully off click two INSOLE S SIGECET SCALE PLANS & 000IIOTVTV1DOA 0 3L0 MODEL PLANS 80 50CC CATALOG fS\ NlEERYS MOUNT S9,V9 I9V,SI009IR, SES S ER V ICE 09000 31VV9V Pj1, S VIEWS I,, SCALEPLA,AN oPoooS,,ce ANS ENLARS NO3209 Mdion AR S e,bR 0 N C 27403 0 0 5 9 SCALE DOCUMENTATION9 9 292 0239 J 4 L EN $1695Propeller Drill Jigs 68 Self aligns exIsting prop hole Wabra Bully a-Dolmar Zenos um II SunCraft 1617 LoaTamasesAlbuq NM 87102 505-842-9646 SPEwic Wing Span Wing Area Engine Size
Edition: Model Aviation - 1990/08
Page Numbers: 52, 53, 149, 150
INTERNATIONAL SLOPE RACE ISR just about Itll weekend July 7-8 Yeah thats about week time read probably still have time prereg ister CD Ray Kuntz youd better hurry event has advance registration want fly would best give him call 1-213/645-4269 work Out details him number manufacturers have ap proached donations used part awards presentation rewarding unsung workers flagmen lap counters timers etc will immeasurable help bringing event off So far have responses Fu taba Sheldons Hobbies VS Saliplanes number others youre interested just showing up can lend hand making event success please drop Any help can lend would greatly appreciated 1990 Torrey Pines Scale Fun Fly 1989 ver sion fun fly successful boys down south have decided move event up Labor Day weekend fliers especially out state will able attend years event will take place Septem ber 1-3 includes official hotel Friday night get-together Saturday night banquet raffle Pilots Choice Award As writing details havent worked out Im sure things will well under way time read information get touch publicity chairman Charlie Morey 2601 E 19th Street #29 Signal Hill CA 90804 phone 1-213/494-3712 Aero L-39 Albatros number companies producing PSS Power Scale Soaring ships seems increase daily nice variety different aircraft being kitted hasnt increased proportionally seems getting lots F-16s P-51s etc too much else Dont get wrong As far am con cerned the merrier want build model P-Si like having opportunity choose number different kits get exact style performance Im looking would also nice able choose larger selection different aircraft Thats enough editorial reason went off subject recently received letter photos describing new PSS ship brand-new company Vein Hunt Models Vein has chosen Czechoslovaldan Aero L-39 Albatros first kit Whats L-39 Alba tros Dont ask point Vein has broken crowd produced very unique very attractive model Ill step aside let Vein take Im writing introduce first Vein Hunt model Ads will soon appear Czechoslo vakian Aero L-39 Albatros isnt first ef fort airplane designer Ive building model airplanes 30 years thought would best subject en try manufacturing Hill Soaring has come Left Daryl Perkins Eliminator banks base turn Davenport Eliminator Mark Allens designs few years ago looks like will plane beat upcoming International Slope Race Middle Mark Allens latest Swift 800 very similar ultraquick Eliminator Ill taking look new design future column will feature Mark Incredible success has recent designs Right Theres some serious racing going Mark Alien turns inside Ron Vann Daryl Perkins collide Daryl few seconds later go down Daryl managed stay airborne edged out Ron SBSS Slope Race flyoff 52 Model Aviation Radio Control Slope Soaring Mark Triebes 20794 Krelsler Ct Saratega CA 95070 Czechoslovakian Aero L-39 Albatros will soon available Vein Hunt Models want something unique local slope might what youre looking Hunt photo Daryl Perkins Eliminator gets good heave John Dvoraks Electra B3 launched Jay strong coastal winds Ron Brehm Electra profiled Vann incredible cleanness de June column has dominated European sign can seen angle Very thin F3F Racing past couple years airfoils low overall drag combine its no match ships todays circuit make todays Slope Racers quickest yet age PSS has increasing interest worldwide America will now have kit truly handsome consistent dedicated modeler loves make model airplanes first model has developed over two-year period along two others per fect aerodynamics manufacturing hope extend line over next few years several PSS Gliders can say youll hearing more Vein Hunt Models time goes fiberglass/carbon-fiber fuselage came years experimenting materials testing test models over over es tablish flyability weather conditions well durability Hill Soaring know can take its toll model thats another reason tough construction Ive rolled model hill several occasions major damage Hope youre excited about model am Yep sure am Vein might few people Out wondering Vein picked such unknown aircraft thinking Geez Vein get programbut think its great Its common knowledge Slopers little bit different just uniqueness us makes Slope Soaring much fun like bring out interesting unique models slope opinion L-39 fits per fectly Ill shut up now give few specif ics kit L-39 spans 52 weighs about 48 oz uses modified Eppler 205 airfoil kit includes carbon-fiber-reinforced glass fuse lage rudder fin molded fuselage foam cores both wing stabs balsa sheeting glass canopy frame formed butyrate canopy glass tip tanks information get touch Vein 4950 Butternut Tr Juneau WI 53039 phone 1-414/349-8101 Turnin burnin Miguelito latest edition Wind newsletter Santa Maria Soaring Society SMSS re port first Slope Races 1990 season big name racers get some early season racing Steve Birchers report action feel need speed Slope Racing way get fair dose larg est numbers entries ever least since Ive around SMSS contest Eighteen pilots came Miguelito bill March 11 making trek far away Escondido Bay Area wind definitely working Rudys wind meter never below 30 mph pegged 50 much daynot always looking repeated blasts cold rain hit shower cells came past dropped light dose hailshades 87 Cross Country lift good super could rough tricky Two fliers made trip vain Dean Clark Milt McIntosh both crashed practice runs prior start racing Another entrant opted watch wound up 15 actual racers first round set up five groups three flying six-lap heats Bay Area crew es tablished come race Mark Allen Falcon 880 fame Eliminator-armed co borIs Ron Vann Daryl Perkins fast sharp turns Marks planes dominated race top three finishers would flying Allen designstwo Eliminators split Swift 800 Bill Hull Los Gatos up leaders until #1 ship crashed due radio inter ference Bills ff2 wasnt quite hot first Southern contingent led al Continued page 149 battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field August 1990 53 B&P Associates Gives Total Flight Line FREEDOM RC Slope Soaring/Triebes Continued page 53 ways competitive Joe Wurts Joe started day typical JW-original planeszero points finish beauty Joe doesnt paint planes rulebut fast right up best em hard landing took off tail Joe switched Swift 800 never missed beat Another LA area flier name escapes doing very well until Falcon 880 stuffed pressed small four-footer fun-type ship wasnt up handling heavy winds Local boys Bill Highfield Rich BeardsIcy did pretty well considering up against some heavy talent Bill flew Jaguar think day Richs original-design tisse Mk-whatever showing lots promise development continues Rich winner Oh s_____ award clean pair skiv vies sheer dumb luck Rich launching Metisse third round wind flipped back passing between Joe Wurts Daryl Perkins less six feet apart Metisse spans about eight feet plane just missed parting Joes hair other side Maybe Daryl oughta get fresh pair shorts too other amazing part story af ter Rich went running back try save plane continued start countdown thinking Rich Out race find hed gotten plane down ground safely still made heat Amazing least three other guys didnt have kinda luck Kirk Olsen Chris Pappas dad John busted up planes Kirks Snipe cracked fuselage spent Sat urday night repairing following crash practicing Chris V-Max fresh off repair bench too having snapped wing week before Both V-Maxes seemed have servorelated problems Possibly pitcheron control system used Max puts extreme loads servos wind heavy Premium hightorque servos metal gears may answer real good guys flagmen got sandblasted wind-burned rained iced cussed fun deep thanks fellas couldnt have done timers lap counters rest thanks Next time will work some tangible way thank crew ybe Dominos will deliver up Canyon Anyway will next time Slope Racing fun slightly addic tive reason included report column besides its obvious entertainment value give have never chance fly see Slope Race some idea flavor first race season Bay Area held April 1 turnout great over 30 pilots race quite number others just fun-fly and/or watch Because South Bay Soaring Society club races held Davenport op portunity get feel slope before ISR number pilots came up southern California including Daryl Perkins Joe Wurts almost local regulars tendance An interesting aspect event its format Slope Races have held past have just races People weren t involved racing usually didnt attend spectators event different billed Slope fun fly/race try attract people out race slope generalcertain fun fly events held between rounds racing As exam ple between first second rounds CD George Paige organized impromptu Aerobat ics contest contestant given 30 seconds show stuff judges end winner particular day Joe Wurts Theres no doubt about maneuver won him precision midair should have gotten lOs across board Too poor little Swift 400 Joe flying especially since Mark Allens plane addition distinct fun fly events time also slated just flying gave people came spectate chance fly slope since some fliers first time thoroughly enjoyed experience particular club has problems getting fliers out slope may good way attract Ive found talking number begin ning fliers intimidated advanced skills high-tech planes up per echelon Slope fliers similar prob lems exist getting people F3B fly ing what people dont realize majority Slopers out just av erage fliers having good time dont need ultra high-tech plane years experience have fun slope need right attitude let hang out have some fun Pushrods servos nice features Silent Flyer newsletter South Bay Soar ing Society large number contributions August 1990 149 Mere Fun 62Y2 inches 770 square inches 10cc 90 120 four stroke Designed AMA FAI Turn-around pattern Foam wing stab 3-32 Balsa sheet covering Tricycle conven tional gear fixed retracts Rear side exhaust fiber glass canopy Very positive maneuverable XLT SPECIFIC Wing Span65 inches Length65 inches Wing Area845 square inches Recommended Engine Size 10 cc 90 120 four stroke XLT designed tuned pipe re tract landing gears Capable AMA Turn-around pattern Rear side ex haust SPECIFICATIONS Wing Span Wing Area Engine Size 63Y4 inches 700 square inches 50-60 Glow 90 four stroke fun sport pattern orturn-around can done Utter Chaos completely built up Balsa construction Canopy engine mount included years proven flying reliablity BRIDI AIRCRAFT DESIGNS INC 23625 Pineforest Lane Harbor City California 90710 213 549-8264 326-5013 SEE YOUR FAVORITE HOBBY SHOP OR RETAIL OUTLETW Dealer Inqurles Invited made members club its reg ular contributors Sailpianer extraordinaire Brian Chan La-Tech Stuff column gives helpful hints insights various areas modeling latest edition discusses some characteristics pushrods servos Pushrods function transmit control motion servos control sur faces play very important role control ling airplane pushrods installed properly less useless doesnt matter good RC unit cant trans mit motion control surfaces through sloppy control linkage ie cannot control airplane several pushrod systems available market come sizes shapes Lets first talk about commercially available linkages common ones made nylon tubing eg Nyrods Theyre ny lon tubes another nylon tube inside pushrod very light weight dimensionally stable respect changes temperature nice hot summer day ar rive flying site have plane trimmed 600 F temperature reaches 900 F noon plane doesnt fly like previous flight nylon expandednot much just enough change trim especially longer pushrods installed Sailplane three feet long isnt uncommon Theres new system Laser Rod Du-Bro just coming market claims dimension ally stable 75% less growth shrinkage will still change due temperature fluctua tions also nylon-tubing-with-steelcable system nylon housing steel ca ble better types work better hous ing anchored side fuselage en tire length housing art picking cables kinds steel cable some pushing some pulling pulling versions usu ally flexible might think flexible kind better Wrong Theyre great under ten sion ie pulling can compress means theyre shorter compressed thus creating sloppiness flutter control surfaces best kind cable use kind called 7 x 1 have seven wires wrapped around single center core less flexible center core keeps cable same length being pushed pulled its relatively straight line between servo control horn can replace cable length pi ano wire best way because piano Continued page 169 RC Electrics/Kopski Continued page 43 Electric fliers interests Chokes installed receiver leads speed controls discussed December 89 col umn offering discussed simple low-cost solution stubborn motor noise problems encountered some receivers found last summer putting small radio frequency RF choke three speed control leads connect receiver could make difference between flying being able fly chokes available Ace R/C Inc p/n LL 106 Since column appeared Ive received sev eral reader inputs also found comment an150 Model Aviation other column indicating success method So far no has reported failure readers may having impossible re ceiver motor noise problems may refer once again past issue possible solution difficulties includes full info no guarantees will fix cases its worth shot since total cost less $2 kind enough commentthank Speed control adjustments seem pose prob lems some modelers Id like offer some help speed control Ive seen has least adjustment screw have two Ive seen three special situation adjustments basically used match up operation control transmitters throttle stick operation Adjust ments necessary because pulse width modulation characteristics transmitters vary because would rather difficult and/or costly build speed controls having pre cise operational characteristics no adjust ments Besides adjustments allow personaliza tion control operation Thus adjust ments used bring together almost ra dio almost speed control almost per sonal preferences about things should operate what does mean means very likely given speed control adjustment set up liking radio brand may work same another brand would have readjusted means although may like control tune-up because harmo nizes transmitter control stick opera tion may preferred another flier perhaps its best planes Heres detail Normally speed control should adjusted throttle stick trim fully retarded down position motor completely off Also throttle stick fully forward up motor should fully course stick intermediate position motor should some intermedi ate speed detail al ways best have deadband about two clicks throttle stick stick down motor fully off click two INSOLE S SIGECET SCALE PLANS & 000IIOTVTV1DOA 0 3L0 MODEL PLANS 80 50CC CATALOG fS\ NlEERYS MOUNT S9,V9 I9V,SI009IR, SES S ER V ICE 09000 31VV9V Pj1, S VIEWS I,, SCALEPLA,AN oPoooS,,ce ANS ENLARS NO3209 Mdion AR S e,bR 0 N C 27403 0 0 5 9 SCALE DOCUMENTATION9 9 292 0239 J 4 L EN $1695Propeller Drill Jigs 68 Self aligns exIsting prop hole Wabra Bully a-Dolmar Zenos um II SunCraft 1617 LoaTamasesAlbuq NM 87102 505-842-9646 SPEwic Wing Span Wing Area Engine Size
Edition: Model Aviation - 1990/08
Page Numbers: 52, 53, 149, 150
INTERNATIONAL SLOPE RACE ISR just about Itll weekend July 7-8 Yeah thats about week time read probably still have time prereg ister CD Ray Kuntz youd better hurry event has advance registration want fly would best give him call 1-213/645-4269 work Out details him number manufacturers have ap proached donations used part awards presentation rewarding unsung workers flagmen lap counters timers etc will immeasurable help bringing event off So far have responses Fu taba Sheldons Hobbies VS Saliplanes number others youre interested just showing up can lend hand making event success please drop Any help can lend would greatly appreciated 1990 Torrey Pines Scale Fun Fly 1989 ver sion fun fly successful boys down south have decided move event up Labor Day weekend fliers especially out state will able attend years event will take place Septem ber 1-3 includes official hotel Friday night get-together Saturday night banquet raffle Pilots Choice Award As writing details havent worked out Im sure things will well under way time read information get touch publicity chairman Charlie Morey 2601 E 19th Street #29 Signal Hill CA 90804 phone 1-213/494-3712 Aero L-39 Albatros number companies producing PSS Power Scale Soaring ships seems increase daily nice variety different aircraft being kitted hasnt increased proportionally seems getting lots F-16s P-51s etc too much else Dont get wrong As far am con cerned the merrier want build model P-Si like having opportunity choose number different kits get exact style performance Im looking would also nice able choose larger selection different aircraft Thats enough editorial reason went off subject recently received letter photos describing new PSS ship brand-new company Vein Hunt Models Vein has chosen Czechoslovaldan Aero L-39 Albatros first kit Whats L-39 Alba tros Dont ask point Vein has broken crowd produced very unique very attractive model Ill step aside let Vein take Im writing introduce first Vein Hunt model Ads will soon appear Czechoslo vakian Aero L-39 Albatros isnt first ef fort airplane designer Ive building model airplanes 30 years thought would best subject en try manufacturing Hill Soaring has come Left Daryl Perkins Eliminator banks base turn Davenport Eliminator Mark Allens designs few years ago looks like will plane beat upcoming International Slope Race Middle Mark Allens latest Swift 800 very similar ultraquick Eliminator Ill taking look new design future column will feature Mark Incredible success has recent designs Right Theres some serious racing going Mark Alien turns inside Ron Vann Daryl Perkins collide Daryl few seconds later go down Daryl managed stay airborne edged out Ron SBSS Slope Race flyoff 52 Model Aviation Radio Control Slope Soaring Mark Triebes 20794 Krelsler Ct Saratega CA 95070 Czechoslovakian Aero L-39 Albatros will soon available Vein Hunt Models want something unique local slope might what youre looking Hunt photo Daryl Perkins Eliminator gets good heave John Dvoraks Electra B3 launched Jay strong coastal winds Ron Brehm Electra profiled Vann incredible cleanness de June column has dominated European sign can seen angle Very thin F3F Racing past couple years airfoils low overall drag combine its no match ships todays circuit make todays Slope Racers quickest yet age PSS has increasing interest worldwide America will now have kit truly handsome consistent dedicated modeler loves make model airplanes first model has developed over two-year period along two others per fect aerodynamics manufacturing hope extend line over next few years several PSS Gliders can say youll hearing more Vein Hunt Models time goes fiberglass/carbon-fiber fuselage came years experimenting materials testing test models over over es tablish flyability weather conditions well durability Hill Soaring know can take its toll model thats another reason tough construction Ive rolled model hill several occasions major damage Hope youre excited about model am Yep sure am Vein might few people Out wondering Vein picked such unknown aircraft thinking Geez Vein get programbut think its great Its common knowledge Slopers little bit different just uniqueness us makes Slope Soaring much fun like bring out interesting unique models slope opinion L-39 fits per fectly Ill shut up now give few specif ics kit L-39 spans 52 weighs about 48 oz uses modified Eppler 205 airfoil kit includes carbon-fiber-reinforced glass fuse lage rudder fin molded fuselage foam cores both wing stabs balsa sheeting glass canopy frame formed butyrate canopy glass tip tanks information get touch Vein 4950 Butternut Tr Juneau WI 53039 phone 1-414/349-8101 Turnin burnin Miguelito latest edition Wind newsletter Santa Maria Soaring Society SMSS re port first Slope Races 1990 season big name racers get some early season racing Steve Birchers report action feel need speed Slope Racing way get fair dose larg est numbers entries ever least since Ive around SMSS contest Eighteen pilots came Miguelito bill March 11 making trek far away Escondido Bay Area wind definitely working Rudys wind meter never below 30 mph pegged 50 much daynot always looking repeated blasts cold rain hit shower cells came past dropped light dose hailshades 87 Cross Country lift good super could rough tricky Two fliers made trip vain Dean Clark Milt McIntosh both crashed practice runs prior start racing Another entrant opted watch wound up 15 actual racers first round set up five groups three flying six-lap heats Bay Area crew es tablished come race Mark Allen Falcon 880 fame Eliminator-armed co borIs Ron Vann Daryl Perkins fast sharp turns Marks planes dominated race top three finishers would flying Allen designstwo Eliminators split Swift 800 Bill Hull Los Gatos up leaders until #1 ship crashed due radio inter ference Bills ff2 wasnt quite hot first Southern contingent led al Continued page 149 battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field August 1990 53 B&P Associates Gives Total Flight Line FREEDOM RC Slope Soaring/Triebes Continued page 53 ways competitive Joe Wurts Joe started day typical JW-original planeszero points finish beauty Joe doesnt paint planes rulebut fast right up best em hard landing took off tail Joe switched Swift 800 never missed beat Another LA area flier name escapes doing very well until Falcon 880 stuffed pressed small four-footer fun-type ship wasnt up handling heavy winds Local boys Bill Highfield Rich BeardsIcy did pretty well considering up against some heavy talent Bill flew Jaguar think day Richs original-design tisse Mk-whatever showing lots promise development continues Rich winner Oh s_____ award clean pair skiv vies sheer dumb luck Rich launching Metisse third round wind flipped back passing between Joe Wurts Daryl Perkins less six feet apart Metisse spans about eight feet plane just missed parting Joes hair other side Maybe Daryl oughta get fresh pair shorts too other amazing part story af ter Rich went running back try save plane continued start countdown thinking Rich Out race find hed gotten plane down ground safely still made heat Amazing least three other guys didnt have kinda luck Kirk Olsen Chris Pappas dad John busted up planes Kirks Snipe cracked fuselage spent Sat urday night repairing following crash practicing Chris V-Max fresh off repair bench too having snapped wing week before Both V-Maxes seemed have servorelated problems Possibly pitcheron control system used Max puts extreme loads servos wind heavy Premium hightorque servos metal gears may answer real good guys flagmen got sandblasted wind-burned rained iced cussed fun deep thanks fellas couldnt have done timers lap counters rest thanks Next time will work some tangible way thank crew ybe Dominos will deliver up Canyon Anyway will next time Slope Racing fun slightly addic tive reason included report column besides its obvious entertainment value give have never chance fly see Slope Race some idea flavor first race season Bay Area held April 1 turnout great over 30 pilots race quite number others just fun-fly and/or watch Because South Bay Soaring Society club races held Davenport op portunity get feel slope before ISR number pilots came up southern California including Daryl Perkins Joe Wurts almost local regulars tendance An interesting aspect event its format Slope Races have held past have just races People weren t involved racing usually didnt attend spectators event different billed Slope fun fly/race try attract people out race slope generalcertain fun fly events held between rounds racing As exam ple between first second rounds CD George Paige organized impromptu Aerobat ics contest contestant given 30 seconds show stuff judges end winner particular day Joe Wurts Theres no doubt about maneuver won him precision midair should have gotten lOs across board Too poor little Swift 400 Joe flying especially since Mark Allens plane addition distinct fun fly events time also slated just flying gave people came spectate chance fly slope since some fliers first time thoroughly enjoyed experience particular club has problems getting fliers out slope may good way attract Ive found talking number begin ning fliers intimidated advanced skills high-tech planes up per echelon Slope fliers similar prob lems exist getting people F3B fly ing what people dont realize majority Slopers out just av erage fliers having good time dont need ultra high-tech plane years experience have fun slope need right attitude let hang out have some fun Pushrods servos nice features Silent Flyer newsletter South Bay Soar ing Society large number contributions August 1990 149 Mere Fun 62Y2 inches 770 square inches 10cc 90 120 four stroke Designed AMA FAI Turn-around pattern Foam wing stab 3-32 Balsa sheet covering Tricycle conven tional gear fixed retracts Rear side exhaust fiber glass canopy Very positive maneuverable XLT SPECIFIC Wing Span65 inches Length65 inches Wing Area845 square inches Recommended Engine Size 10 cc 90 120 four stroke XLT designed tuned pipe re tract landing gears Capable AMA Turn-around pattern Rear side ex haust SPECIFICATIONS Wing Span Wing Area Engine Size 63Y4 inches 700 square inches 50-60 Glow 90 four stroke fun sport pattern orturn-around can done Utter Chaos completely built up Balsa construction Canopy engine mount included years proven flying reliablity BRIDI AIRCRAFT DESIGNS INC 23625 Pineforest Lane Harbor City California 90710 213 549-8264 326-5013 SEE YOUR FAVORITE HOBBY SHOP OR RETAIL OUTLETW Dealer Inqurles Invited made members club its reg ular contributors Sailpianer extraordinaire Brian Chan La-Tech Stuff column gives helpful hints insights various areas modeling latest edition discusses some characteristics pushrods servos Pushrods function transmit control motion servos control sur faces play very important role control ling airplane pushrods installed properly less useless doesnt matter good RC unit cant trans mit motion control surfaces through sloppy control linkage ie cannot control airplane several pushrod systems available market come sizes shapes Lets first talk about commercially available linkages common ones made nylon tubing eg Nyrods Theyre ny lon tubes another nylon tube inside pushrod very light weight dimensionally stable respect changes temperature nice hot summer day ar rive flying site have plane trimmed 600 F temperature reaches 900 F noon plane doesnt fly like previous flight nylon expandednot much just enough change trim especially longer pushrods installed Sailplane three feet long isnt uncommon Theres new system Laser Rod Du-Bro just coming market claims dimension ally stable 75% less growth shrinkage will still change due temperature fluctua tions also nylon-tubing-with-steelcable system nylon housing steel ca ble better types work better hous ing anchored side fuselage en tire length housing art picking cables kinds steel cable some pushing some pulling pulling versions usu ally flexible might think flexible kind better Wrong Theyre great under ten sion ie pulling can compress means theyre shorter compressed thus creating sloppiness flutter control surfaces best kind cable use kind called 7 x 1 have seven wires wrapped around single center core less flexible center core keeps cable same length being pushed pulled its relatively straight line between servo control horn can replace cable length pi ano wire best way because piano Continued page 169 RC Electrics/Kopski Continued page 43 Electric fliers interests Chokes installed receiver leads speed controls discussed December 89 col umn offering discussed simple low-cost solution stubborn motor noise problems encountered some receivers found last summer putting small radio frequency RF choke three speed control leads connect receiver could make difference between flying being able fly chokes available Ace R/C Inc p/n LL 106 Since column appeared Ive received sev eral reader inputs also found comment an150 Model Aviation other column indicating success method So far no has reported failure readers may having impossible re ceiver motor noise problems may refer once again past issue possible solution difficulties includes full info no guarantees will fix cases its worth shot since total cost less $2 kind enough commentthank Speed control adjustments seem pose prob lems some modelers Id like offer some help speed control Ive seen has least adjustment screw have two Ive seen three special situation adjustments basically used match up operation control transmitters throttle stick operation Adjust ments necessary because pulse width modulation characteristics transmitters vary because would rather difficult and/or costly build speed controls having pre cise operational characteristics no adjust ments Besides adjustments allow personaliza tion control operation Thus adjust ments used bring together almost ra dio almost speed control almost per sonal preferences about things should operate what does mean means very likely given speed control adjustment set up liking radio brand may work same another brand would have readjusted means although may like control tune-up because harmo nizes transmitter control stick opera tion may preferred another flier perhaps its best planes Heres detail Normally speed control should adjusted throttle stick trim fully retarded down position motor completely off Also throttle stick fully forward up motor should fully course stick intermediate position motor should some intermedi ate speed detail al ways best have deadband about two clicks throttle stick stick down motor fully off click two INSOLE S SIGECET SCALE PLANS & 000IIOTVTV1DOA 0 3L0 MODEL PLANS 80 50CC CATALOG fS\ NlEERYS MOUNT S9,V9 I9V,SI009IR, SES S ER V ICE 09000 31VV9V Pj1, S VIEWS I,, SCALEPLA,AN oPoooS,,ce ANS ENLARS NO3209 Mdion AR S e,bR 0 N C 27403 0 0 5 9 SCALE DOCUMENTATION9 9 292 0239 J 4 L EN $1695Propeller Drill Jigs 68 Self aligns exIsting prop hole Wabra Bully a-Dolmar Zenos um II SunCraft 1617 LoaTamasesAlbuq NM 87102 505-842-9646 SPEwic Wing Span Wing Area Engine Size
Edition: Model Aviation - 1990/08
Page Numbers: 52, 53, 149, 150
INTERNATIONAL SLOPE RACE ISR just about Itll weekend July 7-8 Yeah thats about week time read probably still have time prereg ister CD Ray Kuntz youd better hurry event has advance registration want fly would best give him call 1-213/645-4269 work Out details him number manufacturers have ap proached donations used part awards presentation rewarding unsung workers flagmen lap counters timers etc will immeasurable help bringing event off So far have responses Fu taba Sheldons Hobbies VS Saliplanes number others youre interested just showing up can lend hand making event success please drop Any help can lend would greatly appreciated 1990 Torrey Pines Scale Fun Fly 1989 ver sion fun fly successful boys down south have decided move event up Labor Day weekend fliers especially out state will able attend years event will take place Septem ber 1-3 includes official hotel Friday night get-together Saturday night banquet raffle Pilots Choice Award As writing details havent worked out Im sure things will well under way time read information get touch publicity chairman Charlie Morey 2601 E 19th Street #29 Signal Hill CA 90804 phone 1-213/494-3712 Aero L-39 Albatros number companies producing PSS Power Scale Soaring ships seems increase daily nice variety different aircraft being kitted hasnt increased proportionally seems getting lots F-16s P-51s etc too much else Dont get wrong As far am con cerned the merrier want build model P-Si like having opportunity choose number different kits get exact style performance Im looking would also nice able choose larger selection different aircraft Thats enough editorial reason went off subject recently received letter photos describing new PSS ship brand-new company Vein Hunt Models Vein has chosen Czechoslovaldan Aero L-39 Albatros first kit Whats L-39 Alba tros Dont ask point Vein has broken crowd produced very unique very attractive model Ill step aside let Vein take Im writing introduce first Vein Hunt model Ads will soon appear Czechoslo vakian Aero L-39 Albatros isnt first ef fort airplane designer Ive building model airplanes 30 years thought would best subject en try manufacturing Hill Soaring has come Left Daryl Perkins Eliminator banks base turn Davenport Eliminator Mark Allens designs few years ago looks like will plane beat upcoming International Slope Race Middle Mark Allens latest Swift 800 very similar ultraquick Eliminator Ill taking look new design future column will feature Mark Incredible success has recent designs Right Theres some serious racing going Mark Alien turns inside Ron Vann Daryl Perkins collide Daryl few seconds later go down Daryl managed stay airborne edged out Ron SBSS Slope Race flyoff 52 Model Aviation Radio Control Slope Soaring Mark Triebes 20794 Krelsler Ct Saratega CA 95070 Czechoslovakian Aero L-39 Albatros will soon available Vein Hunt Models want something unique local slope might what youre looking Hunt photo Daryl Perkins Eliminator gets good heave John Dvoraks Electra B3 launched Jay strong coastal winds Ron Brehm Electra profiled Vann incredible cleanness de June column has dominated European sign can seen angle Very thin F3F Racing past couple years airfoils low overall drag combine its no match ships todays circuit make todays Slope Racers quickest yet age PSS has increasing interest worldwide America will now have kit truly handsome consistent dedicated modeler loves make model airplanes first model has developed over two-year period along two others per fect aerodynamics manufacturing hope extend line over next few years several PSS Gliders can say youll hearing more Vein Hunt Models time goes fiberglass/carbon-fiber fuselage came years experimenting materials testing test models over over es tablish flyability weather conditions well durability Hill Soaring know can take its toll model thats another reason tough construction Ive rolled model hill several occasions major damage Hope youre excited about model am Yep sure am Vein might few people Out wondering Vein picked such unknown aircraft thinking Geez Vein get programbut think its great Its common knowledge Slopers little bit different just uniqueness us makes Slope Soaring much fun like bring out interesting unique models slope opinion L-39 fits per fectly Ill shut up now give few specif ics kit L-39 spans 52 weighs about 48 oz uses modified Eppler 205 airfoil kit includes carbon-fiber-reinforced glass fuse lage rudder fin molded fuselage foam cores both wing stabs balsa sheeting glass canopy frame formed butyrate canopy glass tip tanks information get touch Vein 4950 Butternut Tr Juneau WI 53039 phone 1-414/349-8101 Turnin burnin Miguelito latest edition Wind newsletter Santa Maria Soaring Society SMSS re port first Slope Races 1990 season big name racers get some early season racing Steve Birchers report action feel need speed Slope Racing way get fair dose larg est numbers entries ever least since Ive around SMSS contest Eighteen pilots came Miguelito bill March 11 making trek far away Escondido Bay Area wind definitely working Rudys wind meter never below 30 mph pegged 50 much daynot always looking repeated blasts cold rain hit shower cells came past dropped light dose hailshades 87 Cross Country lift good super could rough tricky Two fliers made trip vain Dean Clark Milt McIntosh both crashed practice runs prior start racing Another entrant opted watch wound up 15 actual racers first round set up five groups three flying six-lap heats Bay Area crew es tablished come race Mark Allen Falcon 880 fame Eliminator-armed co borIs Ron Vann Daryl Perkins fast sharp turns Marks planes dominated race top three finishers would flying Allen designstwo Eliminators split Swift 800 Bill Hull Los Gatos up leaders until #1 ship crashed due radio inter ference Bills ff2 wasnt quite hot first Southern contingent led al Continued page 149 battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field August 1990 53 B&P Associates Gives Total Flight Line FREEDOM RC Slope Soaring/Triebes Continued page 53 ways competitive Joe Wurts Joe started day typical JW-original planeszero points finish beauty Joe doesnt paint planes rulebut fast right up best em hard landing took off tail Joe switched Swift 800 never missed beat Another LA area flier name escapes doing very well until Falcon 880 stuffed pressed small four-footer fun-type ship wasnt up handling heavy winds Local boys Bill Highfield Rich BeardsIcy did pretty well considering up against some heavy talent Bill flew Jaguar think day Richs original-design tisse Mk-whatever showing lots promise development continues Rich winner Oh s_____ award clean pair skiv vies sheer dumb luck Rich launching Metisse third round wind flipped back passing between Joe Wurts Daryl Perkins less six feet apart Metisse spans about eight feet plane just missed parting Joes hair other side Maybe Daryl oughta get fresh pair shorts too other amazing part story af ter Rich went running back try save plane continued start countdown thinking Rich Out race find hed gotten plane down ground safely still made heat Amazing least three other guys didnt have kinda luck Kirk Olsen Chris Pappas dad John busted up planes Kirks Snipe cracked fuselage spent Sat urday night repairing following crash practicing Chris V-Max fresh off repair bench too having snapped wing week before Both V-Maxes seemed have servorelated problems Possibly pitcheron control system used Max puts extreme loads servos wind heavy Premium hightorque servos metal gears may answer real good guys flagmen got sandblasted wind-burned rained iced cussed fun deep thanks fellas couldnt have done timers lap counters rest thanks Next time will work some tangible way thank crew ybe Dominos will deliver up Canyon Anyway will next time Slope Racing fun slightly addic tive reason included report column besides its obvious entertainment value give have never chance fly see Slope Race some idea flavor first race season Bay Area held April 1 turnout great over 30 pilots race quite number others just fun-fly and/or watch Because South Bay Soaring Society club races held Davenport op portunity get feel slope before ISR number pilots came up southern California including Daryl Perkins Joe Wurts almost local regulars tendance An interesting aspect event its format Slope Races have held past have just races People weren t involved racing usually didnt attend spectators event different billed Slope fun fly/race try attract people out race slope generalcertain fun fly events held between rounds racing As exam ple between first second rounds CD George Paige organized impromptu Aerobat ics contest contestant given 30 seconds show stuff judges end winner particular day Joe Wurts Theres no doubt about maneuver won him precision midair should have gotten lOs across board Too poor little Swift 400 Joe flying especially since Mark Allens plane addition distinct fun fly events time also slated just flying gave people came spectate chance fly slope since some fliers first time thoroughly enjoyed experience particular club has problems getting fliers out slope may good way attract Ive found talking number begin ning fliers intimidated advanced skills high-tech planes up per echelon Slope fliers similar prob lems exist getting people F3B fly ing what people dont realize majority Slopers out just av erage fliers having good time dont need ultra high-tech plane years experience have fun slope need right attitude let hang out have some fun Pushrods servos nice features Silent Flyer newsletter South Bay Soar ing Society large number contributions August 1990 149 Mere Fun 62Y2 inches 770 square inches 10cc 90 120 four stroke Designed AMA FAI Turn-around pattern Foam wing stab 3-32 Balsa sheet covering Tricycle conven tional gear fixed retracts Rear side exhaust fiber glass canopy Very positive maneuverable XLT SPECIFIC Wing Span65 inches Length65 inches Wing Area845 square inches Recommended Engine Size 10 cc 90 120 four stroke XLT designed tuned pipe re tract landing gears Capable AMA Turn-around pattern Rear side ex haust SPECIFICATIONS Wing Span Wing Area Engine Size 63Y4 inches 700 square inches 50-60 Glow 90 four stroke fun sport pattern orturn-around can done Utter Chaos completely built up Balsa construction Canopy engine mount included years proven flying reliablity BRIDI AIRCRAFT DESIGNS INC 23625 Pineforest Lane Harbor City California 90710 213 549-8264 326-5013 SEE YOUR FAVORITE HOBBY SHOP OR RETAIL OUTLETW Dealer Inqurles Invited made members club its reg ular contributors Sailpianer extraordinaire Brian Chan La-Tech Stuff column gives helpful hints insights various areas modeling latest edition discusses some characteristics pushrods servos Pushrods function transmit control motion servos control sur faces play very important role control ling airplane pushrods installed properly less useless doesnt matter good RC unit cant trans mit motion control surfaces through sloppy control linkage ie cannot control airplane several pushrod systems available market come sizes shapes Lets first talk about commercially available linkages common ones made nylon tubing eg Nyrods Theyre ny lon tubes another nylon tube inside pushrod very light weight dimensionally stable respect changes temperature nice hot summer day ar rive flying site have plane trimmed 600 F temperature reaches 900 F noon plane doesnt fly like previous flight nylon expandednot much just enough change trim especially longer pushrods installed Sailplane three feet long isnt uncommon Theres new system Laser Rod Du-Bro just coming market claims dimension ally stable 75% less growth shrinkage will still change due temperature fluctua tions also nylon-tubing-with-steelcable system nylon housing steel ca ble better types work better hous ing anchored side fuselage en tire length housing art picking cables kinds steel cable some pushing some pulling pulling versions usu ally flexible might think flexible kind better Wrong Theyre great under ten sion ie pulling can compress means theyre shorter compressed thus creating sloppiness flutter control surfaces best kind cable use kind called 7 x 1 have seven wires wrapped around single center core less flexible center core keeps cable same length being pushed pulled its relatively straight line between servo control horn can replace cable length pi ano wire best way because piano Continued page 169 RC Electrics/Kopski Continued page 43 Electric fliers interests Chokes installed receiver leads speed controls discussed December 89 col umn offering discussed simple low-cost solution stubborn motor noise problems encountered some receivers found last summer putting small radio frequency RF choke three speed control leads connect receiver could make difference between flying being able fly chokes available Ace R/C Inc p/n LL 106 Since column appeared Ive received sev eral reader inputs also found comment an150 Model Aviation other column indicating success method So far no has reported failure readers may having impossible re ceiver motor noise problems may refer once again past issue possible solution difficulties includes full info no guarantees will fix cases its worth shot since total cost less $2 kind enough commentthank Speed control adjustments seem pose prob lems some modelers Id like offer some help speed control Ive seen has least adjustment screw have two Ive seen three special situation adjustments basically used match up operation control transmitters throttle stick operation Adjust ments necessary because pulse width modulation characteristics transmitters vary because would rather difficult and/or costly build speed controls having pre cise operational characteristics no adjust ments Besides adjustments allow personaliza tion control operation Thus adjust ments used bring together almost ra dio almost speed control almost per sonal preferences about things should operate what does mean means very likely given speed control adjustment set up liking radio brand may work same another brand would have readjusted means although may like control tune-up because harmo nizes transmitter control stick opera tion may preferred another flier perhaps its best planes Heres detail Normally speed control should adjusted throttle stick trim fully retarded down position motor completely off Also throttle stick fully forward up motor should fully course stick intermediate position motor should some intermedi ate speed detail al ways best have deadband about two clicks throttle stick stick down motor fully off click two INSOLE S SIGECET SCALE PLANS & 000IIOTVTV1DOA 0 3L0 MODEL PLANS 80 50CC CATALOG fS\ NlEERYS MOUNT S9,V9 I9V,SI009IR, SES S ER V ICE 09000 31VV9V Pj1, S VIEWS I,, SCALEPLA,AN oPoooS,,ce ANS ENLARS NO3209 Mdion AR S e,bR 0 N C 27403 0 0 5 9 SCALE DOCUMENTATION9 9 292 0239 J 4 L EN $1695Propeller Drill Jigs 68 Self aligns exIsting prop hole Wabra Bully a-Dolmar Zenos um II SunCraft 1617 LoaTamasesAlbuq NM 87102 505-842-9646 SPEwic Wing Span Wing Area Engine Size