Radio Control Sport Aerobatics RonVan Putte PRODUCT evaluations sticky sub ject magazines magazine staff reluctant print critical review advertisers products same time columnists shouldnt expected rubber stamp rave review written advertiser Several years ago magazines philosophy would publish favorable product evaluations along came critical reviews Radio Control Modeler magazine Several manufacturers improved products after poor rating published Other magazines sub sequently published negative fair pro duct reports caused product improve ment other hand some manufac turers did stop advertising magazines critical products Several Model viation columnists including myself perform product evalua tions report am proud say magazine prints both favor able unfavorable product reviews long evaluations honestly per formed review will benefit readers personal philosophy prod uct received manufacturer de serves fair complete evaluation re view both favorable un favorable aspects should reported think benefit both readers manufacturers handle product re views way strongly favorable review really means something above mind Id like re I/B X3 PLYWOOD METAL WASHER FIT OVER 7/3BRASS TUBE 7/32 BRASS TUBE FLARED OVER METAL WASHER 3/16 BRASS TUBE INSERTED IN 7/32 TUBE FREE FLOATING port Royal Pro Tach Since sembling electronic kits hobby friends know frugal enemies call tightwad chose purchase assemble kit version tachomoter new product article kit assembly originally appeared July 1975 RCM However recent com ments other modelers make ap parent well known average flier modelers consider quality tachometer necessity few years ago people seldom considered electric fuel pumps electric starters flying field rapid chargers nickel cadmium bat tery cyclers retractable landing gear K FUSELAGE SIDES 7/32 BRASS TUBE CEMENTED \ IN PLACE WITH EPOXY AND FIBER GLASS CLOTH tuned pipes glow plug analyzers engine fuel pumps other such accessories necessary either Nowadays us have some Royal Pro Tach definitely versatile instrument features ex panded scale meter six operating rpm ranges Assembly reasonably simple taking equivalent evening accomplish instructions could improved including step per instruction Instead instructions like 46 tall R23 yel purp red R24 10k 1% C2 100 pf disc would better present 46 tall R23 yel purp red 47 all R24 10k 1% Continued page 102 I/8X X 3 PLY WOOD\ I/B STEEL WIRE /METAL WASHER COPPER WIRE SOLDER 5/32 STEEL WIRE PLUGS INTO 3/16 BRASS TUBE 5/32 STEEL WIRE//PLYWOOD GLUED TO CONNECT I/4X ALUM RODS BY WRAPPINGSTEEL WIRE AND WITH RUBBER BANDS PROVIDES SHOCK ABSORBINGCOVERED WITH ACTION AND HOLDS PLUGIN LANDING IN PLACE 1/32 STEEL WIREI/32STEEL WIRE WRAP WITH #22 SOLID COPPER AND SOLDER PLUG-IN SHOCK ABSORBING LANDING GEAR 24 Model Aviation Bill Hershbeger prominent pioneer Pylon race pilot has interesting shock-absorbing landing gear sport aircraft Arrangement permits easy removal entire landing gear m ATTENTION COLD WEATHER Ageo qI o SRRSPosSl SOhood og Addoddtooo 51 5 o codJ _____ MITT FOR YOUR HANDS AND YOUR BEDT FRIEND YOUR I THE ORIGINAL FUR LINED CORDUORY PROTECTOR RADIOIITHASACLEARFLADTICAINOOA FOR COMPLETE VIEW OF CONTROLS ADJUSTARLE TAR SO ALL RADIOS WILL FIT DOUARE CONSTRUCTION FOR TROURLE FREE CONTROL -IANDLING YOU WILL BE THE ELVY OF ALL YOUR FROST BITTEN FRIENDS L Deod check o 00evOR 0 M 255 Woppo RoodMS B ow woweeks low level fly-by flap demonstration have yet seen model using Fowler flaps employed modern jet airliners increase wing area well effective change angle incidence model using such flaps would likely quite large flaps could effective FAI Scale Meeting Woodvale Scale World Championships meeting ClAM Scale Subcommittee called chairman Helmut Zeigler discuss following items I No downgrading realism flight would occur because visible re ceiver antenna unless spoiled planes appearance drastically 2 A plane damaged during flight could repaired group rather builder alone violating builder model rule cause reasoned plane already static judged 3 Electric starters carried plane actuated radio signal would awarded points engine starting ground unless starter constructed contestant Restarting engine air would eligible receiving score normally done prototype such Fournier Ryson powered gliders final decision ground starts would rest judges contest 4 The rule require ten-second straight flight will amended starting point maneuver need over landing circle avoids problem very fast plane going out sight ten sec onds 5 The judges should have right require contestant demonstrate retracting landing gear air full view operation dif ficult see plane distance after takeoff judges should aware cycle time time lag between retracting gear legs 6 In calling maneuvers landing need called separately unless emergency such occurs engine dies 7 The question definition biplane scoring under new complexity bonus system would left judges stub wing very small wing sesquiplane would make plane biplane true sense Bob Dolly Wischer Rt 1 S-221 Lapham Peak Road Delafield WI 53018 RC Aerobatics/Van Putte continued page 24 48 all C2 100 pf disc occasion ally lost track middle multi-step instruction neglected steps Consequently care needs taken ended up marking off individual components installed As almost kit Ive ever sembled parts missing absence transistor two resistors aggravating since anxious try out new toy However Royal quickly sent missing parts formed Pro Tach works perfectly coin phrase flew right off drawing board Calibration five-minute job short other minor changes instructions better quality control parts packaging improvement Royal Pro Tach can think re duce $5995 price tag modelers can afford once get letter fellow modeler makes envious such case letter Bill Kaiser San Francisco Bill has imag ination versatility us wish Bills letter end article Sept 78 issue Model viat ion mentioned 6-foot canard have 6-foot aerobatic canard using Ridge Runner wings have flying year now also referred having 6-foot wings until someone mentioned should name glider Two Yard Canard fly glider off slope horizontal stabilizer front 24 wide elevator flap being 1 wide front stabilizer rubber-band tached has never badly damaged am always looking something teresting different fly off slope have successful hang-glider Regallo wing made aluminum tubing dacron has standard fuselage under rudder elevator control bar attached top fuselage regular wing position keel rear Regallo wing fastened top strengthened vertical fin have radio controlled blimp 9-feet long has electric motor Ra dio Shop special rear 6-foot fuselage hangs under blimp electric motor swivels up down left right blimp will turn practically around itself goes 102 Model Aviation walking speed electric motor runs about 45 minutes 550-MAH battery pack Receiver two servos run off 450-MAH battery electric motor operates transmitter stick moved up down also have threewheeled land sailer winch jib sails wrote Bill requesting additional details pictures fascinating vari ety models hope share antic ipation reading seeing him Several people pointed out manda tory zero engine failure after takeoff announced really deleted published list mandatory zeros alleged September issue mandatory zero Engine running throughout maneuvers except Spin Approach Landing covers situation engine failure during takeoff Apparently people know 1978 Nats radio control aerobatics events planned run Na tional Society Radio Controlled Aero batics NSRCA people can take credit best run RC aerobatics Nats history Thats just opinion either seasoned Nats competitors delighted improved flight line efficiency especially rapid tabulation posting results permitted competitor see results score board within minutes completion flight NSRCA has come long way improving aerobatic competition have long way go advan tage pattern competitors NSRCA members hope non-members will send membership dues hardworking Mrs Sally Brown NSRCA Secretary/Treasurer 8534 Huddleston Dr Cincinnati OH 45236 sure list address AMA number Also enclose check $6 1978 Dues 1979 will $10 live Alabama Arkansas Florida Georgia Louisiana Mississippi Tennessee NSRCA member may interested hear just appointed NSRCA Vice President District 3 includes states Dick McGraw former VP forced give up job business health reasons Please let hear does commercial go Something like name like Fritzers its got good Well name like Hobby poxy thixatropic epoxy glue its got goodand Hobbypoxys new mula 3 glue thick resists running vertical surfaces made perfect installing firewall new Phoenix 8 fuselage Aero Composites Phoenix 8 fuselage epoxy/glass epoxy glues recommended rather polyester glues Since have never happy mixing different powders glues o make paste thick enough form decent fillets around bulkheads new Pettit product welcome works Ron Van Puue 12 Connie Drive Shalimar FL 32579 RC Helicopters/Chesney continued page 26 quick respond control inputs unlike Hiller systems am familiar As turned out quickness abso lute control welcome change hurry up wait Hiller system difference control response ad vantage between rigid rotor flybarless helicopter primarily because direct inputs swash plate rotor blade Hiller systems must rely stabilizing flybar servo main rotors other words swash plate acts upon flybar turn powers main rotor pitch change mechanism absence flybar servo paddles cans also disadvantage because servo power must come directly radio systems servo addition force multiplying ef fect flybar paddles flybar also responsible much stability rotor system acting gyro scope flybarless helicopter blades weighted allow spinning rotor system act also gyroscope stabilize machine possible put much weight blade control inputs rotors will have affect upon altitude helicop ter Too little weight blades will result very little gyroscopic effect machine could become almost impos sible control folks American R/C Helicopter have found best com promise Revolution II Rigid Rotor caution against changing amount location rotor tip weights Another type rotor system use combination system allowing direct input rotor blades well input through flybar rotor believe re ferred BelIer system BelIer system used Kavan Jet Ranger HeliBoy Revolution Commander light helicopter such HeliBoy Revolution Com mander Beller system offers aerobatic performance plus additional stability power provided flybar back Revolution II RR Revolution II shown photos began its career standard Revolu tion II Fixed Pitch Kit Rigid Rotor flybarless system added conver sion kit Since Revolution earlier kits some drilling neces sary install modification Later Revolutions supplied holes factory drilled will simplify stallation modifications available availability modification kits standard Revolution II offers heli copter can grow proficiency grows addition flybarless Rigid Rotor GRISH IS BIGGER propellers Ways BEST Grish designs propellers. others copy Sizes pitches styles needs LARGE WOOD SIZES 7 18 modification kit new Commander aerobatic head kit has also re leased Soon hope new flybarless four bladed head will also available Commander head four-bladed system may added existing Revolution II Rigid Rotor simply removing fly barless head installing new head associated swash plate pitch arm linkage same could apply Com mander helicopter just change rotor heads would necessary convert flybarless two- four-blade systems addition rotor systems now available Revolution II Jet Ranger fuselage available may added Revolution fixed pitch heli HARDWOOD. too hard minimizes chances costly plane engine damage True pitch airfoil fully carved Craftsman adds own final copter Revolution Commander Revolution II Rigid Rotor Revolution II regardless initial configuration offers tremendous degree flexibility its owner As noted above paragraphs Revolution II Rigid Rotor result Rigid Rotor modification kit kit added very little deviation instructions photos show de tails particular radio installation except modification seat console related placement receiver battery pack per stallation instructions provided modification kit machine arrived first flight addition 4 oz nose December1978 103 RISH RGE WOOD PROPELLERS touches ISH BROS ST JOHN GRINDIANA 46373 diameters 6810 pItch] /
Edition: Model Aviation - 1978/12
Page Numbers: 24, 102, 103
Radio Control Sport Aerobatics RonVan Putte PRODUCT evaluations sticky sub ject magazines magazine staff reluctant print critical review advertisers products same time columnists shouldnt expected rubber stamp rave review written advertiser Several years ago magazines philosophy would publish favorable product evaluations along came critical reviews Radio Control Modeler magazine Several manufacturers improved products after poor rating published Other magazines sub sequently published negative fair pro duct reports caused product improve ment other hand some manufac turers did stop advertising magazines critical products Several Model viation columnists including myself perform product evalua tions report am proud say magazine prints both favor able unfavorable product reviews long evaluations honestly per formed review will benefit readers personal philosophy prod uct received manufacturer de serves fair complete evaluation re view both favorable un favorable aspects should reported think benefit both readers manufacturers handle product re views way strongly favorable review really means something above mind Id like re I/B X3 PLYWOOD METAL WASHER FIT OVER 7/3BRASS TUBE 7/32 BRASS TUBE FLARED OVER METAL WASHER 3/16 BRASS TUBE INSERTED IN 7/32 TUBE FREE FLOATING port Royal Pro Tach Since sembling electronic kits hobby friends know frugal enemies call tightwad chose purchase assemble kit version tachomoter new product article kit assembly originally appeared July 1975 RCM However recent com ments other modelers make ap parent well known average flier modelers consider quality tachometer necessity few years ago people seldom considered electric fuel pumps electric starters flying field rapid chargers nickel cadmium bat tery cyclers retractable landing gear K FUSELAGE SIDES 7/32 BRASS TUBE CEMENTED \ IN PLACE WITH EPOXY AND FIBER GLASS CLOTH tuned pipes glow plug analyzers engine fuel pumps other such accessories necessary either Nowadays us have some Royal Pro Tach definitely versatile instrument features ex panded scale meter six operating rpm ranges Assembly reasonably simple taking equivalent evening accomplish instructions could improved including step per instruction Instead instructions like 46 tall R23 yel purp red R24 10k 1% C2 100 pf disc would better present 46 tall R23 yel purp red 47 all R24 10k 1% Continued page 102 I/8X X 3 PLY WOOD\ I/B STEEL WIRE /METAL WASHER COPPER WIRE SOLDER 5/32 STEEL WIRE PLUGS INTO 3/16 BRASS TUBE 5/32 STEEL WIRE//PLYWOOD GLUED TO CONNECT I/4X ALUM RODS BY WRAPPINGSTEEL WIRE AND WITH RUBBER BANDS PROVIDES SHOCK ABSORBINGCOVERED WITH ACTION AND HOLDS PLUGIN LANDING IN PLACE 1/32 STEEL WIREI/32STEEL WIRE WRAP WITH #22 SOLID COPPER AND SOLDER PLUG-IN SHOCK ABSORBING LANDING GEAR 24 Model Aviation Bill Hershbeger prominent pioneer Pylon race pilot has interesting shock-absorbing landing gear sport aircraft Arrangement permits easy removal entire landing gear m ATTENTION COLD WEATHER Ageo qI o SRRSPosSl SOhood og Addoddtooo 51 5 o codJ _____ MITT FOR YOUR HANDS AND YOUR BEDT FRIEND YOUR I THE ORIGINAL FUR LINED CORDUORY PROTECTOR RADIOIITHASACLEARFLADTICAINOOA FOR COMPLETE VIEW OF CONTROLS ADJUSTARLE TAR SO ALL RADIOS WILL FIT DOUARE CONSTRUCTION FOR TROURLE FREE CONTROL -IANDLING YOU WILL BE THE ELVY OF ALL YOUR FROST BITTEN FRIENDS L Deod check o 00evOR 0 M 255 Woppo RoodMS B ow woweeks low level fly-by flap demonstration have yet seen model using Fowler flaps employed modern jet airliners increase wing area well effective change angle incidence model using such flaps would likely quite large flaps could effective FAI Scale Meeting Woodvale Scale World Championships meeting ClAM Scale Subcommittee called chairman Helmut Zeigler discuss following items I No downgrading realism flight would occur because visible re ceiver antenna unless spoiled planes appearance drastically 2 A plane damaged during flight could repaired group rather builder alone violating builder model rule cause reasoned plane already static judged 3 Electric starters carried plane actuated radio signal would awarded points engine starting ground unless starter constructed contestant Restarting engine air would eligible receiving score normally done prototype such Fournier Ryson powered gliders final decision ground starts would rest judges contest 4 The rule require ten-second straight flight will amended starting point maneuver need over landing circle avoids problem very fast plane going out sight ten sec onds 5 The judges should have right require contestant demonstrate retracting landing gear air full view operation dif ficult see plane distance after takeoff judges should aware cycle time time lag between retracting gear legs 6 In calling maneuvers landing need called separately unless emergency such occurs engine dies 7 The question definition biplane scoring under new complexity bonus system would left judges stub wing very small wing sesquiplane would make plane biplane true sense Bob Dolly Wischer Rt 1 S-221 Lapham Peak Road Delafield WI 53018 RC Aerobatics/Van Putte continued page 24 48 all C2 100 pf disc occasion ally lost track middle multi-step instruction neglected steps Consequently care needs taken ended up marking off individual components installed As almost kit Ive ever sembled parts missing absence transistor two resistors aggravating since anxious try out new toy However Royal quickly sent missing parts formed Pro Tach works perfectly coin phrase flew right off drawing board Calibration five-minute job short other minor changes instructions better quality control parts packaging improvement Royal Pro Tach can think re duce $5995 price tag modelers can afford once get letter fellow modeler makes envious such case letter Bill Kaiser San Francisco Bill has imag ination versatility us wish Bills letter end article Sept 78 issue Model viat ion mentioned 6-foot canard have 6-foot aerobatic canard using Ridge Runner wings have flying year now also referred having 6-foot wings until someone mentioned should name glider Two Yard Canard fly glider off slope horizontal stabilizer front 24 wide elevator flap being 1 wide front stabilizer rubber-band tached has never badly damaged am always looking something teresting different fly off slope have successful hang-glider Regallo wing made aluminum tubing dacron has standard fuselage under rudder elevator control bar attached top fuselage regular wing position keel rear Regallo wing fastened top strengthened vertical fin have radio controlled blimp 9-feet long has electric motor Ra dio Shop special rear 6-foot fuselage hangs under blimp electric motor swivels up down left right blimp will turn practically around itself goes 102 Model Aviation walking speed electric motor runs about 45 minutes 550-MAH battery pack Receiver two servos run off 450-MAH battery electric motor operates transmitter stick moved up down also have threewheeled land sailer winch jib sails wrote Bill requesting additional details pictures fascinating vari ety models hope share antic ipation reading seeing him Several people pointed out manda tory zero engine failure after takeoff announced really deleted published list mandatory zeros alleged September issue mandatory zero Engine running throughout maneuvers except Spin Approach Landing covers situation engine failure during takeoff Apparently people know 1978 Nats radio control aerobatics events planned run Na tional Society Radio Controlled Aero batics NSRCA people can take credit best run RC aerobatics Nats history Thats just opinion either seasoned Nats competitors delighted improved flight line efficiency especially rapid tabulation posting results permitted competitor see results score board within minutes completion flight NSRCA has come long way improving aerobatic competition have long way go advan tage pattern competitors NSRCA members hope non-members will send membership dues hardworking Mrs Sally Brown NSRCA Secretary/Treasurer 8534 Huddleston Dr Cincinnati OH 45236 sure list address AMA number Also enclose check $6 1978 Dues 1979 will $10 live Alabama Arkansas Florida Georgia Louisiana Mississippi Tennessee NSRCA member may interested hear just appointed NSRCA Vice President District 3 includes states Dick McGraw former VP forced give up job business health reasons Please let hear does commercial go Something like name like Fritzers its got good Well name like Hobby poxy thixatropic epoxy glue its got goodand Hobbypoxys new mula 3 glue thick resists running vertical surfaces made perfect installing firewall new Phoenix 8 fuselage Aero Composites Phoenix 8 fuselage epoxy/glass epoxy glues recommended rather polyester glues Since have never happy mixing different powders glues o make paste thick enough form decent fillets around bulkheads new Pettit product welcome works Ron Van Puue 12 Connie Drive Shalimar FL 32579 RC Helicopters/Chesney continued page 26 quick respond control inputs unlike Hiller systems am familiar As turned out quickness abso lute control welcome change hurry up wait Hiller system difference control response ad vantage between rigid rotor flybarless helicopter primarily because direct inputs swash plate rotor blade Hiller systems must rely stabilizing flybar servo main rotors other words swash plate acts upon flybar turn powers main rotor pitch change mechanism absence flybar servo paddles cans also disadvantage because servo power must come directly radio systems servo addition force multiplying ef fect flybar paddles flybar also responsible much stability rotor system acting gyro scope flybarless helicopter blades weighted allow spinning rotor system act also gyroscope stabilize machine possible put much weight blade control inputs rotors will have affect upon altitude helicop ter Too little weight blades will result very little gyroscopic effect machine could become almost impos sible control folks American R/C Helicopter have found best com promise Revolution II Rigid Rotor caution against changing amount location rotor tip weights Another type rotor system use combination system allowing direct input rotor blades well input through flybar rotor believe re ferred BelIer system BelIer system used Kavan Jet Ranger HeliBoy Revolution Commander light helicopter such HeliBoy Revolution Com mander Beller system offers aerobatic performance plus additional stability power provided flybar back Revolution II RR Revolution II shown photos began its career standard Revolu tion II Fixed Pitch Kit Rigid Rotor flybarless system added conver sion kit Since Revolution earlier kits some drilling neces sary install modification Later Revolutions supplied holes factory drilled will simplify stallation modifications available availability modification kits standard Revolution II offers heli copter can grow proficiency grows addition flybarless Rigid Rotor GRISH IS BIGGER propellers Ways BEST Grish designs propellers. others copy Sizes pitches styles needs LARGE WOOD SIZES 7 18 modification kit new Commander aerobatic head kit has also re leased Soon hope new flybarless four bladed head will also available Commander head four-bladed system may added existing Revolution II Rigid Rotor simply removing fly barless head installing new head associated swash plate pitch arm linkage same could apply Com mander helicopter just change rotor heads would necessary convert flybarless two- four-blade systems addition rotor systems now available Revolution II Jet Ranger fuselage available may added Revolution fixed pitch heli HARDWOOD. too hard minimizes chances costly plane engine damage True pitch airfoil fully carved Craftsman adds own final copter Revolution Commander Revolution II Rigid Rotor Revolution II regardless initial configuration offers tremendous degree flexibility its owner As noted above paragraphs Revolution II Rigid Rotor result Rigid Rotor modification kit kit added very little deviation instructions photos show de tails particular radio installation except modification seat console related placement receiver battery pack per stallation instructions provided modification kit machine arrived first flight addition 4 oz nose December1978 103 RISH RGE WOOD PROPELLERS touches ISH BROS ST JOHN GRINDIANA 46373 diameters 6810 pItch] /
Edition: Model Aviation - 1978/12
Page Numbers: 24, 102, 103
Radio Control Sport Aerobatics RonVan Putte PRODUCT evaluations sticky sub ject magazines magazine staff reluctant print critical review advertisers products same time columnists shouldnt expected rubber stamp rave review written advertiser Several years ago magazines philosophy would publish favorable product evaluations along came critical reviews Radio Control Modeler magazine Several manufacturers improved products after poor rating published Other magazines sub sequently published negative fair pro duct reports caused product improve ment other hand some manufac turers did stop advertising magazines critical products Several Model viation columnists including myself perform product evalua tions report am proud say magazine prints both favor able unfavorable product reviews long evaluations honestly per formed review will benefit readers personal philosophy prod uct received manufacturer de serves fair complete evaluation re view both favorable un favorable aspects should reported think benefit both readers manufacturers handle product re views way strongly favorable review really means something above mind Id like re I/B X3 PLYWOOD METAL WASHER FIT OVER 7/3BRASS TUBE 7/32 BRASS TUBE FLARED OVER METAL WASHER 3/16 BRASS TUBE INSERTED IN 7/32 TUBE FREE FLOATING port Royal Pro Tach Since sembling electronic kits hobby friends know frugal enemies call tightwad chose purchase assemble kit version tachomoter new product article kit assembly originally appeared July 1975 RCM However recent com ments other modelers make ap parent well known average flier modelers consider quality tachometer necessity few years ago people seldom considered electric fuel pumps electric starters flying field rapid chargers nickel cadmium bat tery cyclers retractable landing gear K FUSELAGE SIDES 7/32 BRASS TUBE CEMENTED \ IN PLACE WITH EPOXY AND FIBER GLASS CLOTH tuned pipes glow plug analyzers engine fuel pumps other such accessories necessary either Nowadays us have some Royal Pro Tach definitely versatile instrument features ex panded scale meter six operating rpm ranges Assembly reasonably simple taking equivalent evening accomplish instructions could improved including step per instruction Instead instructions like 46 tall R23 yel purp red R24 10k 1% C2 100 pf disc would better present 46 tall R23 yel purp red 47 all R24 10k 1% Continued page 102 I/8X X 3 PLY WOOD\ I/B STEEL WIRE /METAL WASHER COPPER WIRE SOLDER 5/32 STEEL WIRE PLUGS INTO 3/16 BRASS TUBE 5/32 STEEL WIRE//PLYWOOD GLUED TO CONNECT I/4X ALUM RODS BY WRAPPINGSTEEL WIRE AND WITH RUBBER BANDS PROVIDES SHOCK ABSORBINGCOVERED WITH ACTION AND HOLDS PLUGIN LANDING IN PLACE 1/32 STEEL WIREI/32STEEL WIRE WRAP WITH #22 SOLID COPPER AND SOLDER PLUG-IN SHOCK ABSORBING LANDING GEAR 24 Model Aviation Bill Hershbeger prominent pioneer Pylon race pilot has interesting shock-absorbing landing gear sport aircraft Arrangement permits easy removal entire landing gear m ATTENTION COLD WEATHER Ageo qI o SRRSPosSl SOhood og Addoddtooo 51 5 o codJ _____ MITT FOR YOUR HANDS AND YOUR BEDT FRIEND YOUR I THE ORIGINAL FUR LINED CORDUORY PROTECTOR RADIOIITHASACLEARFLADTICAINOOA FOR COMPLETE VIEW OF CONTROLS ADJUSTARLE TAR SO ALL RADIOS WILL FIT DOUARE CONSTRUCTION FOR TROURLE FREE CONTROL -IANDLING YOU WILL BE THE ELVY OF ALL YOUR FROST BITTEN FRIENDS L Deod check o 00evOR 0 M 255 Woppo RoodMS B ow woweeks low level fly-by flap demonstration have yet seen model using Fowler flaps employed modern jet airliners increase wing area well effective change angle incidence model using such flaps would likely quite large flaps could effective FAI Scale Meeting Woodvale Scale World Championships meeting ClAM Scale Subcommittee called chairman Helmut Zeigler discuss following items I No downgrading realism flight would occur because visible re ceiver antenna unless spoiled planes appearance drastically 2 A plane damaged during flight could repaired group rather builder alone violating builder model rule cause reasoned plane already static judged 3 Electric starters carried plane actuated radio signal would awarded points engine starting ground unless starter constructed contestant Restarting engine air would eligible receiving score normally done prototype such Fournier Ryson powered gliders final decision ground starts would rest judges contest 4 The rule require ten-second straight flight will amended starting point maneuver need over landing circle avoids problem very fast plane going out sight ten sec onds 5 The judges should have right require contestant demonstrate retracting landing gear air full view operation dif ficult see plane distance after takeoff judges should aware cycle time time lag between retracting gear legs 6 In calling maneuvers landing need called separately unless emergency such occurs engine dies 7 The question definition biplane scoring under new complexity bonus system would left judges stub wing very small wing sesquiplane would make plane biplane true sense Bob Dolly Wischer Rt 1 S-221 Lapham Peak Road Delafield WI 53018 RC Aerobatics/Van Putte continued page 24 48 all C2 100 pf disc occasion ally lost track middle multi-step instruction neglected steps Consequently care needs taken ended up marking off individual components installed As almost kit Ive ever sembled parts missing absence transistor two resistors aggravating since anxious try out new toy However Royal quickly sent missing parts formed Pro Tach works perfectly coin phrase flew right off drawing board Calibration five-minute job short other minor changes instructions better quality control parts packaging improvement Royal Pro Tach can think re duce $5995 price tag modelers can afford once get letter fellow modeler makes envious such case letter Bill Kaiser San Francisco Bill has imag ination versatility us wish Bills letter end article Sept 78 issue Model viat ion mentioned 6-foot canard have 6-foot aerobatic canard using Ridge Runner wings have flying year now also referred having 6-foot wings until someone mentioned should name glider Two Yard Canard fly glider off slope horizontal stabilizer front 24 wide elevator flap being 1 wide front stabilizer rubber-band tached has never badly damaged am always looking something teresting different fly off slope have successful hang-glider Regallo wing made aluminum tubing dacron has standard fuselage under rudder elevator control bar attached top fuselage regular wing position keel rear Regallo wing fastened top strengthened vertical fin have radio controlled blimp 9-feet long has electric motor Ra dio Shop special rear 6-foot fuselage hangs under blimp electric motor swivels up down left right blimp will turn practically around itself goes 102 Model Aviation walking speed electric motor runs about 45 minutes 550-MAH battery pack Receiver two servos run off 450-MAH battery electric motor operates transmitter stick moved up down also have threewheeled land sailer winch jib sails wrote Bill requesting additional details pictures fascinating vari ety models hope share antic ipation reading seeing him Several people pointed out manda tory zero engine failure after takeoff announced really deleted published list mandatory zeros alleged September issue mandatory zero Engine running throughout maneuvers except Spin Approach Landing covers situation engine failure during takeoff Apparently people know 1978 Nats radio control aerobatics events planned run Na tional Society Radio Controlled Aero batics NSRCA people can take credit best run RC aerobatics Nats history Thats just opinion either seasoned Nats competitors delighted improved flight line efficiency especially rapid tabulation posting results permitted competitor see results score board within minutes completion flight NSRCA has come long way improving aerobatic competition have long way go advan tage pattern competitors NSRCA members hope non-members will send membership dues hardworking Mrs Sally Brown NSRCA Secretary/Treasurer 8534 Huddleston Dr Cincinnati OH 45236 sure list address AMA number Also enclose check $6 1978 Dues 1979 will $10 live Alabama Arkansas Florida Georgia Louisiana Mississippi Tennessee NSRCA member may interested hear just appointed NSRCA Vice President District 3 includes states Dick McGraw former VP forced give up job business health reasons Please let hear does commercial go Something like name like Fritzers its got good Well name like Hobby poxy thixatropic epoxy glue its got goodand Hobbypoxys new mula 3 glue thick resists running vertical surfaces made perfect installing firewall new Phoenix 8 fuselage Aero Composites Phoenix 8 fuselage epoxy/glass epoxy glues recommended rather polyester glues Since have never happy mixing different powders glues o make paste thick enough form decent fillets around bulkheads new Pettit product welcome works Ron Van Puue 12 Connie Drive Shalimar FL 32579 RC Helicopters/Chesney continued page 26 quick respond control inputs unlike Hiller systems am familiar As turned out quickness abso lute control welcome change hurry up wait Hiller system difference control response ad vantage between rigid rotor flybarless helicopter primarily because direct inputs swash plate rotor blade Hiller systems must rely stabilizing flybar servo main rotors other words swash plate acts upon flybar turn powers main rotor pitch change mechanism absence flybar servo paddles cans also disadvantage because servo power must come directly radio systems servo addition force multiplying ef fect flybar paddles flybar also responsible much stability rotor system acting gyro scope flybarless helicopter blades weighted allow spinning rotor system act also gyroscope stabilize machine possible put much weight blade control inputs rotors will have affect upon altitude helicop ter Too little weight blades will result very little gyroscopic effect machine could become almost impos sible control folks American R/C Helicopter have found best com promise Revolution II Rigid Rotor caution against changing amount location rotor tip weights Another type rotor system use combination system allowing direct input rotor blades well input through flybar rotor believe re ferred BelIer system BelIer system used Kavan Jet Ranger HeliBoy Revolution Commander light helicopter such HeliBoy Revolution Com mander Beller system offers aerobatic performance plus additional stability power provided flybar back Revolution II RR Revolution II shown photos began its career standard Revolu tion II Fixed Pitch Kit Rigid Rotor flybarless system added conver sion kit Since Revolution earlier kits some drilling neces sary install modification Later Revolutions supplied holes factory drilled will simplify stallation modifications available availability modification kits standard Revolution II offers heli copter can grow proficiency grows addition flybarless Rigid Rotor GRISH IS BIGGER propellers Ways BEST Grish designs propellers. others copy Sizes pitches styles needs LARGE WOOD SIZES 7 18 modification kit new Commander aerobatic head kit has also re leased Soon hope new flybarless four bladed head will also available Commander head four-bladed system may added existing Revolution II Rigid Rotor simply removing fly barless head installing new head associated swash plate pitch arm linkage same could apply Com mander helicopter just change rotor heads would necessary convert flybarless two- four-blade systems addition rotor systems now available Revolution II Jet Ranger fuselage available may added Revolution fixed pitch heli HARDWOOD. too hard minimizes chances costly plane engine damage True pitch airfoil fully carved Craftsman adds own final copter Revolution Commander Revolution II Rigid Rotor Revolution II regardless initial configuration offers tremendous degree flexibility its owner As noted above paragraphs Revolution II Rigid Rotor result Rigid Rotor modification kit kit added very little deviation instructions photos show de tails particular radio installation except modification seat console related placement receiver battery pack per stallation instructions provided modification kit machine arrived first flight addition 4 oz nose December1978 103 RISH RGE WOOD PROPELLERS touches ISH BROS ST JOHN GRINDIANA 46373 diameters 6810 pItch] /