MY report 1989 Toledo show mentioned Gorham Model Products working new Helicopter featuring noncollective Hiller steering aimed novice Helicopter pilot market Rebel now being shipped August 1989 GMP dealers has undergone consider able evolution prototype shown ledo know lot going leery reverting back ancient technology its simple Rebel very easy build fly looking backward towards simplicity experience have today GMP has able achieve classic mix old new has succeeded its quest producing lowcost high-quality rugged airframe suitable training particular goal satisfy air craft modeler already has 40-size engine spare four-channel radio available going list features Rebel found Introduction its instruction manual suitable words borrowed 'The Rebel exciting new 40/45powered RC entry-level Helicopter GMP added its ever-increasing range RC Helicop ters designed give interested begin ner opportunity fly RC Helicopters sacrifice quality reliability stability Rebel also perfect fun machine expert tool around sky take along family picnics Special features include ex tremely simple assembly low parts count rugged construction use standard air plane radios engines icopters have always renowned over world Although Rebel simple low-partscount Helicopter maintains tradition Highquality ball bearings utilized key area main chassis constructed -inthick aircraft-grade aluminum alloy longer life durability Rebel uses metric nuts bolts GMP models selected nearly worlds designers being superior small mechanisms rapidly becoming world standard metric hardware lighter since has smaller bolt heads nuts its use enables whole Helicopter design lighter compact threads finer hence bolt provides tensile strength given diameter Ninety percent worlds RC Helicopters now use metric hardware UMP Rebels met ric system world-standard inter changeable GMP Cricket Competitor Cobra Legend nearly Japanese Euro pean RC Helicopters Continued page 163 60 Model Aviation Radio Control Helicopters Larry Jolly 5501 W Como Santa Ana CA 92703 GMP aims entry-level chopper flier new Rebel Noteworthy features low cost simple mechanics easy accessibility wide-stance landing gear stable flight ease mainteneance adjustment does have collective pitch control main rotor Fixed-pitch main rotor allows ultra-simple ro- Rebels tail rotor gearbox familiar tor head swash plate Larry likes ma- GMP/Hirobo unit used other GMP ma Hel- chines toughness accessibilty chines Rebels secret sucess everything completeness quality GMP RCworking parts bolts metric sizesused tried proven Lots details Rebels mechanics visible Larry used Os 40 FSR aircraft engine its standard muffler Note belt-drive sys tem cooling fan shroud robust landing gear straight control runs cyclic tail rotor controls Larry built special battery/receiver tray get receiver up higher cabin Barely visible right tip crankshaft-mounted cone use standard electric starter mar units Given results above would seem reason able question ask high must high rate Surely rates between low-speed frame-rate types SC-4 highrate unit produce in-between results Also probably some high-rate value above little performance difference obtained sounds like winter project mefor come future first speed control matter great interest matter non-optically-coupled speed con trols glitching see October 89 MA page 59 get see test fly large number Electrics process experience wide variety flight performance results too often experience case motorinduced glitching recently saw case truly phenomenal level same effect plane unflyable fact ground range motor running measurable tens feet Substituting different radio significantly im proved situation concluded something wrong first radio advised pilot send warranty re pair brand new first asked could try something Since speed control case optically coupled wanted try separate speed control receiver radio frequencies installed three small chokes three speed-control-toreceiver leads effectively broke radio/speed control connection radio frequency DC servo-pulse-signal condi tions worked just great plane perfectly flyable what still believe defective radio Since success two other systems per formed normally meaning somewhat glitchy flyable similarly modified good results normal glitching reduced significantly sounds like some thing would useful 10microhenry chokes available Ace R/C Inc part #LL106 SOC photo herein shows installing cannot assure same success ra dio speed control power system can find out yourself few bucks lit tle time now speed control item up coming new big-motor unit soon announced S ES MILLS MET5LS 500KS PRECISI0s INST5YIE5TS C0NLETE 5T5LOG $200 Ku IbIs 1t,S 4MPIIU GLf c 2100 C S1,s Rooc Spr,gfo1d 1ioo 45505 Compac3 13 322-8562 Jomar intended use 24 32 cells dont have release date price writing Interest can call write Jomar see ad magazine get prompt reliable accu rate answer goes service too could name some places hobby doesnt happenbut wont dont ask either Electric supplies available littleknown source SR Batteries Its SR lit tIe known indeed very well knownbut batteries fact SR can supply wide range Electric goodies including Astro Jomar Robbe KSC other name brands discount prices addition popular SR batteries latter bring quite bit reader mail espe cially high-capacity Magnums seems readers have really taken liking l250sa cell specified 1250 mAb capac ity physical size nominal weight familiar 800 ARs Ive some interesting correspondence Larry Sribnick chief charge arry tells wont tell anyone else just what cell-secrets Larry maintains proprietary info regarding suppliers processes cant blame him Its se cret success Anyway case youre aware Larry will make up custom battery packs re quirements Check SR ad issue send note get SR catalog tells except secrets As closing note remember Electrics work just great winter its very easy keep em clean low temperatures cause theres no thick sticky goo wipe off plane Happy quiet Electric landings everyone RC Scale/Parsons Continued page 59 batteries much easier quicker ac curate old-style analog voltmeter Beckman Circuitmate DM15B compact high quality has good ranges fac tors make ideal both workshop field box paid around 60 bucks about five years ago RC Helicopters/Jolly Continued page 60 special new feature Rebel hi-tech composite rotor head After much designing ex perimenting flight testing GMP has devel oped unique rotor head offers utmost simplicity performance new rotor head consists one-piece ny lon center unit dual-ball-bearing-supported hub Hiller flybar control pivots nylon center unit Prebent blade holders automatically adjust main rotor blade pitch optimum setting Hence Rebel very easy set up has fewest parts count rotor head market provides lots inherent static stability maintaining very adequate acro batic capability main rotor blades specifically designed matched maximize flight performance Rebel combination unique airfoil blade chord dimensions has produced flight re sponse very conducive learning tly quickly little no damage model Cyclic control soft yet responsive Altitude control normally less effective other fixed-pitch Helicopters much improved Rebel climbs descends ease precision improved altitude control re sult extensive research testing led simple yet very effective rotor blade head design standard starting system Rebel cone start now demanded discriminating mod elers worldwide greatly eases starting process eliminates problems can arise starting belt-type system Rebel however OMP has developed sys tem further accommodate airplane fliers special adapter electric starter no longer needed Rebel designed use standard airplane starter cone fit ted electric starters However rub ber insert may need reversed smaller opening engages Rebels starting cone clutch classic GMP standard one-piece design machined steel plastic pro vides superior reliable performance GMP clutch unit times expensive manufacture other plastic some twopiece metal clutches available today gives smoother engagement drive performance lasts virtually forever clutch bell fitted special lining individually factoryfitted particular OMP kit provide cor rect engagement reliable operating perform ance will buy Rebel aimed toward Continued page 167 December 1989 163 BLUES CA getting down get protected CA mask Safety Plus mask will eliminate CA fumes epoxy polyester resin vapors air breath Lightweight easy breathing comfortable CA Mask $1595 Paint Mask $2045 See hobby dealer first doesnt have what need order direct Safety Plus PO Box 1173 Dept 12M Clinton Mississippi 39056 Call toll free 1-800-842-7233 Mississippi dial 601-924-9640 VISA MASTERCARD accepted COD add $250 shipping handling included Dealer Inquiries Invited PLU5 Bob FiorenzeI Hobby Center Inc Dealer Yellow Aircraft Complete Line Mail Order Hobby Suppliex Now available Faatcover Covering Material Welt Shownoom 35 mm Dextey woridl Omegaleool Power Fuela Diacountad Z 420 W.t SR 434--407 3274353 Winter Spdnga FL 32708 'Fax 407 327-7148 FOAM CORE FLOATS PLANS AND KITS WE OFFER SELECTION OF FLOAT PLANS AND KITS FOR 4 12 POUND AIRPLANES WITH V HULL lESION IN USE SIIWE 1972 SEND SASE FOR CATALOG SHEET KIRCHER R/C PRODUCTS INC 9 SHEFFIELD WAY CLARK NJ 07066 RC Helicopters/Jolly Continued page 163 person interested trying RC Helicop ters hut cannot justify expense buying special heli-radios engines needed todays complex Helicopters Therefore Rebel designed around ever-popular 40/45size airplane engines inexpensive fourchannel radios already possession people dramatically reduces entry cost level people can try RC Helicopter challenge engine Rebel faces side Hel icopter profile-type stiff-winged models facilitate quick glow plug changes mounted mainframe via separate alumi num plate permits easy engine access re moval headaches sometimes associated engine change removal servicing greatly simplified GMP Rebel Rebels tail rotor uses tried-and-proven UMP Cobra/Competitor tail rotor gearbox unit comes factory assembled complete greased gears bearings Ball bearing blade holders complete assembly producing tail rotor system provides very smooth con trol response nd regular lubrication virtu ally unlimited life What kit like Rebel kit received early So mention something correction has already incorporated kit buy dont surprised GMP con stantly updating improving its line recom mendations suggestions have come its field representatives kit well packed quality noticeable throughout metal parts nicely finished main airframe being anodized black Rebel instruction manual has 39 pages explanations illustrations dont think will have trouble manual Rebel builds fast Mine took five hours followed word manual mounting hardware bag should deposited acceptable container drawn upon needed assembly screw sizes types illustrated manual handy metric scale printed bottom several pages instructions clear would like add following help first-time builder 1 When installing clutch assembly engine no mention made checking start ing shaft runout runout measured devia tion perfect alignmentEd task less important Rebel some other machines like see shaft runout small possible cut down vibration havent checked shaft before obtain copy Ray Hostetlers book RCM magazine explains great detail tells spot fix 2 In Stage 4 assembling canopy standoffs original mounting hole sideframe too low should redrilled moved forward upward about / way 3 In Stage 5 would like see step post poned difficulty getting cooling fan mount using location holes molded housing Instead slid housing over fan mounted engines drive belt made sure engine proper angle posi tion relation drive pulley before mount ing fan-cover brackets mainframe held fan housing position rotated fan hand using starting cone iwith glow plug Out engine listening care fully fan rub fan housing position adjusted until its proper loca tion marked mounting bracket holes felt pen scribe remove engine-mounting plate drill fan housing mount brackets Running scribe two sides engine plate before removing will make easier relocate plate unit reassembled 4 While Stage 5 1 would suggest drilling additional hole through mounting plate side frame Its location critical Clean anodizing away side hole Insert screw nonanodized washers under both head nut tighten down screw will act electrically ground mounting plate engine side frames will also good idea use sheet metal screw inserted through tail boom mount tail tube will ensure total electric continuity through out metal frame machine will help guard against unwanted radio interference 5 In stage 7 servo trays assembled Its bad idea back up main servo carrier additional layer supplied material As tray flexible can deflect under fore/aft servo loads Also helpful build battery/receiver tray did hold receiver higher canopy see photo 6 In stage 10 assembly tail rotor gear box finished gearbox comes mostly assembled would suggest checking make sure everything should tight Also note tail control attaches aft side blade holder 7 In stage 16 found easier put fuel filter left side machine cabin conceals its mounted shown right side 8 In stage 18 would suggest using 1200mAh Ni-Cd flight pack Rebel balances per fectly place smaller pack used lead ballast will necessary achieve proper balance dont see need further clarifica tions manual well written particularly setup flying instructions set up Rebel OS 40 FSR aircraft engine utilizing supplied aircraft muffler guidance installed Futaba 7 FGH S-130 servos 1200mAh flight pack As day wrote column have about 15 minutes hovering time Rebel have yet fly circuits am already impressed models stability control authority have also noted Rebel champion highspeed backward flight no dipping tail/nose swapping noted summary new GMP Rebel very nice kit perfectly suits market inNEW VHS-4 HOUR FORMAT ~P tape youve ~ waiting finally here! youre new hobby lust want learn secret of wood plane construction forYOU PLANE VIDEO Presents BUILDING IT RIGHT THE FIRST TIME FIRST NO-NONSENSE VIDEO OF WOOD AIRCRAFT CONSTRUCTION APPROX 4 HOURS ON e Radio installation e Fuci tank insisilation e Straight wing buiiding e New engine setup e Instailing hinges e Fuseisge construction OShear webbing OBUiLDING STRAIGHT e Applying PO cioth e lnstsiling pushrods e Servo installation e Covering film e Setting sp s sew radio e Eliminating warps e Built-up tail surfaces e Aligning Balancing e Slab tail surfaces e Final checkout e Aileron installation e PLUS MUCH MORE CREDIT CARD CUSTOMERS Use toll free number place order I-lava /IS4 MasterCard VISA ready call OR mail $2455 S & H TO MasterCardPLANE VIDEO PO Box 23128 Des Moines IA 50322 Iowa residents add 4% sales tax PLANE V0E PELPINGOU7 7077! 18003838251 tended Its low cost ruggedness great flyability will undoubtedly add its popularity Please read column next month full re port Rebels flyability setup noncollective flying general BCNU RC Pylon Racing/Hager Continued page 61 Greg Doe donated P-39 kit won drawing Tony Speck Frank Schwartz won Scat Cat kit Doug Robinson Hobby Express Columbus OH best crash Doug Whiteaker donated set cores plans Viper given first-placer Grunkemeyer Wayne Yeager presented trophies cash awards TURN Thanks everyone goodies Thanks involved great week end Racing OK Heres new Q-500 kit Ritchs Hobbies has just received its new Q-500 named Texas Outlaw kit sells under $80 Yes heard right Look what get Q-500 about 85% complete Texas Outlaw has winning races national championships since late Seventies has modified improved times over years incorporate latest rules spec ifications improve its performance under wide range course conditions new kit has designed long tail moment accommodate normal radio installa tion will come out about 20 oz assembled ready finish will allow keep close 3 i/s.Ib limit plane completely AMA legal quality kit Its available local hobby shops write call Ritchs Hobbies 4101 December 1989 167 GMP Rebel Characteristics Engine size 40/45 cu 65/75cc Main Rotor Span 42 1068mm Tail Rotor Span 10 254mm Main Rotor Speed 1600-1700 rpm hover Height 165 419mm Length 405 1029mm Weight with gyro 1 200-mAb bat tery pack 4-channel radio 55-65 lb Radio 4-channel Servos 4 required Gyro Not necessary would speed up learning pro cess
Edition: Model Aviation - 1989/12
Page Numbers: 60, 163, 167
MY report 1989 Toledo show mentioned Gorham Model Products working new Helicopter featuring noncollective Hiller steering aimed novice Helicopter pilot market Rebel now being shipped August 1989 GMP dealers has undergone consider able evolution prototype shown ledo know lot going leery reverting back ancient technology its simple Rebel very easy build fly looking backward towards simplicity experience have today GMP has able achieve classic mix old new has succeeded its quest producing lowcost high-quality rugged airframe suitable training particular goal satisfy air craft modeler already has 40-size engine spare four-channel radio available going list features Rebel found Introduction its instruction manual suitable words borrowed 'The Rebel exciting new 40/45powered RC entry-level Helicopter GMP added its ever-increasing range RC Helicop ters designed give interested begin ner opportunity fly RC Helicopters sacrifice quality reliability stability Rebel also perfect fun machine expert tool around sky take along family picnics Special features include ex tremely simple assembly low parts count rugged construction use standard air plane radios engines icopters have always renowned over world Although Rebel simple low-partscount Helicopter maintains tradition Highquality ball bearings utilized key area main chassis constructed -inthick aircraft-grade aluminum alloy longer life durability Rebel uses metric nuts bolts GMP models selected nearly worlds designers being superior small mechanisms rapidly becoming world standard metric hardware lighter since has smaller bolt heads nuts its use enables whole Helicopter design lighter compact threads finer hence bolt provides tensile strength given diameter Ninety percent worlds RC Helicopters now use metric hardware UMP Rebels met ric system world-standard inter changeable GMP Cricket Competitor Cobra Legend nearly Japanese Euro pean RC Helicopters Continued page 163 60 Model Aviation Radio Control Helicopters Larry Jolly 5501 W Como Santa Ana CA 92703 GMP aims entry-level chopper flier new Rebel Noteworthy features low cost simple mechanics easy accessibility wide-stance landing gear stable flight ease mainteneance adjustment does have collective pitch control main rotor Fixed-pitch main rotor allows ultra-simple ro- Rebels tail rotor gearbox familiar tor head swash plate Larry likes ma- GMP/Hirobo unit used other GMP ma Hel- chines toughness accessibilty chines Rebels secret sucess everything completeness quality GMP RCworking parts bolts metric sizesused tried proven Lots details Rebels mechanics visible Larry used Os 40 FSR aircraft engine its standard muffler Note belt-drive sys tem cooling fan shroud robust landing gear straight control runs cyclic tail rotor controls Larry built special battery/receiver tray get receiver up higher cabin Barely visible right tip crankshaft-mounted cone use standard electric starter mar units Given results above would seem reason able question ask high must high rate Surely rates between low-speed frame-rate types SC-4 highrate unit produce in-between results Also probably some high-rate value above little performance difference obtained sounds like winter project mefor come future first speed control matter great interest matter non-optically-coupled speed con trols glitching see October 89 MA page 59 get see test fly large number Electrics process experience wide variety flight performance results too often experience case motorinduced glitching recently saw case truly phenomenal level same effect plane unflyable fact ground range motor running measurable tens feet Substituting different radio significantly im proved situation concluded something wrong first radio advised pilot send warranty re pair brand new first asked could try something Since speed control case optically coupled wanted try separate speed control receiver radio frequencies installed three small chokes three speed-control-toreceiver leads effectively broke radio/speed control connection radio frequency DC servo-pulse-signal condi tions worked just great plane perfectly flyable what still believe defective radio Since success two other systems per formed normally meaning somewhat glitchy flyable similarly modified good results normal glitching reduced significantly sounds like some thing would useful 10microhenry chokes available Ace R/C Inc part #LL106 SOC photo herein shows installing cannot assure same success ra dio speed control power system can find out yourself few bucks lit tle time now speed control item up coming new big-motor unit soon announced S ES MILLS MET5LS 500KS PRECISI0s INST5YIE5TS C0NLETE 5T5LOG $200 Ku IbIs 1t,S 4MPIIU GLf c 2100 C S1,s Rooc Spr,gfo1d 1ioo 45505 Compac3 13 322-8562 Jomar intended use 24 32 cells dont have release date price writing Interest can call write Jomar see ad magazine get prompt reliable accu rate answer goes service too could name some places hobby doesnt happenbut wont dont ask either Electric supplies available littleknown source SR Batteries Its SR lit tIe known indeed very well knownbut batteries fact SR can supply wide range Electric goodies including Astro Jomar Robbe KSC other name brands discount prices addition popular SR batteries latter bring quite bit reader mail espe cially high-capacity Magnums seems readers have really taken liking l250sa cell specified 1250 mAb capac ity physical size nominal weight familiar 800 ARs Ive some interesting correspondence Larry Sribnick chief charge arry tells wont tell anyone else just what cell-secrets Larry maintains proprietary info regarding suppliers processes cant blame him Its se cret success Anyway case youre aware Larry will make up custom battery packs re quirements Check SR ad issue send note get SR catalog tells except secrets As closing note remember Electrics work just great winter its very easy keep em clean low temperatures cause theres no thick sticky goo wipe off plane Happy quiet Electric landings everyone RC Scale/Parsons Continued page 59 batteries much easier quicker ac curate old-style analog voltmeter Beckman Circuitmate DM15B compact high quality has good ranges fac tors make ideal both workshop field box paid around 60 bucks about five years ago RC Helicopters/Jolly Continued page 60 special new feature Rebel hi-tech composite rotor head After much designing ex perimenting flight testing GMP has devel oped unique rotor head offers utmost simplicity performance new rotor head consists one-piece ny lon center unit dual-ball-bearing-supported hub Hiller flybar control pivots nylon center unit Prebent blade holders automatically adjust main rotor blade pitch optimum setting Hence Rebel very easy set up has fewest parts count rotor head market provides lots inherent static stability maintaining very adequate acro batic capability main rotor blades specifically designed matched maximize flight performance Rebel combination unique airfoil blade chord dimensions has produced flight re sponse very conducive learning tly quickly little no damage model Cyclic control soft yet responsive Altitude control normally less effective other fixed-pitch Helicopters much improved Rebel climbs descends ease precision improved altitude control re sult extensive research testing led simple yet very effective rotor blade head design standard starting system Rebel cone start now demanded discriminating mod elers worldwide greatly eases starting process eliminates problems can arise starting belt-type system Rebel however OMP has developed sys tem further accommodate airplane fliers special adapter electric starter no longer needed Rebel designed use standard airplane starter cone fit ted electric starters However rub ber insert may need reversed smaller opening engages Rebels starting cone clutch classic GMP standard one-piece design machined steel plastic pro vides superior reliable performance GMP clutch unit times expensive manufacture other plastic some twopiece metal clutches available today gives smoother engagement drive performance lasts virtually forever clutch bell fitted special lining individually factoryfitted particular OMP kit provide cor rect engagement reliable operating perform ance will buy Rebel aimed toward Continued page 167 December 1989 163 BLUES CA getting down get protected CA mask Safety Plus mask will eliminate CA fumes epoxy polyester resin vapors air breath Lightweight easy breathing comfortable CA Mask $1595 Paint Mask $2045 See hobby dealer first doesnt have what need order direct Safety Plus PO Box 1173 Dept 12M Clinton Mississippi 39056 Call toll free 1-800-842-7233 Mississippi dial 601-924-9640 VISA MASTERCARD accepted COD add $250 shipping handling included Dealer Inquiries Invited PLU5 Bob FiorenzeI Hobby Center Inc Dealer Yellow Aircraft Complete Line Mail Order Hobby Suppliex Now available Faatcover Covering Material Welt Shownoom 35 mm Dextey woridl Omegaleool Power Fuela Diacountad Z 420 W.t SR 434--407 3274353 Winter Spdnga FL 32708 'Fax 407 327-7148 FOAM CORE FLOATS PLANS AND KITS WE OFFER SELECTION OF FLOAT PLANS AND KITS FOR 4 12 POUND AIRPLANES WITH V HULL lESION IN USE SIIWE 1972 SEND SASE FOR CATALOG SHEET KIRCHER R/C PRODUCTS INC 9 SHEFFIELD WAY CLARK NJ 07066 RC Helicopters/Jolly Continued page 163 person interested trying RC Helicop ters hut cannot justify expense buying special heli-radios engines needed todays complex Helicopters Therefore Rebel designed around ever-popular 40/45size airplane engines inexpensive fourchannel radios already possession people dramatically reduces entry cost level people can try RC Helicopter challenge engine Rebel faces side Hel icopter profile-type stiff-winged models facilitate quick glow plug changes mounted mainframe via separate alumi num plate permits easy engine access re moval headaches sometimes associated engine change removal servicing greatly simplified GMP Rebel Rebels tail rotor uses tried-and-proven UMP Cobra/Competitor tail rotor gearbox unit comes factory assembled complete greased gears bearings Ball bearing blade holders complete assembly producing tail rotor system provides very smooth con trol response nd regular lubrication virtu ally unlimited life What kit like Rebel kit received early So mention something correction has already incorporated kit buy dont surprised GMP con stantly updating improving its line recom mendations suggestions have come its field representatives kit well packed quality noticeable throughout metal parts nicely finished main airframe being anodized black Rebel instruction manual has 39 pages explanations illustrations dont think will have trouble manual Rebel builds fast Mine took five hours followed word manual mounting hardware bag should deposited acceptable container drawn upon needed assembly screw sizes types illustrated manual handy metric scale printed bottom several pages instructions clear would like add following help first-time builder 1 When installing clutch assembly engine no mention made checking start ing shaft runout runout measured devia tion perfect alignmentEd task less important Rebel some other machines like see shaft runout small possible cut down vibration havent checked shaft before obtain copy Ray Hostetlers book RCM magazine explains great detail tells spot fix 2 In Stage 4 assembling canopy standoffs original mounting hole sideframe too low should redrilled moved forward upward about / way 3 In Stage 5 would like see step post poned difficulty getting cooling fan mount using location holes molded housing Instead slid housing over fan mounted engines drive belt made sure engine proper angle posi tion relation drive pulley before mount ing fan-cover brackets mainframe held fan housing position rotated fan hand using starting cone iwith glow plug Out engine listening care fully fan rub fan housing position adjusted until its proper loca tion marked mounting bracket holes felt pen scribe remove engine-mounting plate drill fan housing mount brackets Running scribe two sides engine plate before removing will make easier relocate plate unit reassembled 4 While Stage 5 1 would suggest drilling additional hole through mounting plate side frame Its location critical Clean anodizing away side hole Insert screw nonanodized washers under both head nut tighten down screw will act electrically ground mounting plate engine side frames will also good idea use sheet metal screw inserted through tail boom mount tail tube will ensure total electric continuity through out metal frame machine will help guard against unwanted radio interference 5 In stage 7 servo trays assembled Its bad idea back up main servo carrier additional layer supplied material As tray flexible can deflect under fore/aft servo loads Also helpful build battery/receiver tray did hold receiver higher canopy see photo 6 In stage 10 assembly tail rotor gear box finished gearbox comes mostly assembled would suggest checking make sure everything should tight Also note tail control attaches aft side blade holder 7 In stage 16 found easier put fuel filter left side machine cabin conceals its mounted shown right side 8 In stage 18 would suggest using 1200mAh Ni-Cd flight pack Rebel balances per fectly place smaller pack used lead ballast will necessary achieve proper balance dont see need further clarifica tions manual well written particularly setup flying instructions set up Rebel OS 40 FSR aircraft engine utilizing supplied aircraft muffler guidance installed Futaba 7 FGH S-130 servos 1200mAh flight pack As day wrote column have about 15 minutes hovering time Rebel have yet fly circuits am already impressed models stability control authority have also noted Rebel champion highspeed backward flight no dipping tail/nose swapping noted summary new GMP Rebel very nice kit perfectly suits market inNEW VHS-4 HOUR FORMAT ~P tape youve ~ waiting finally here! youre new hobby lust want learn secret of wood plane construction forYOU PLANE VIDEO Presents BUILDING IT RIGHT THE FIRST TIME FIRST NO-NONSENSE VIDEO OF WOOD AIRCRAFT CONSTRUCTION APPROX 4 HOURS ON e Radio installation e Fuci tank insisilation e Straight wing buiiding e New engine setup e Instailing hinges e Fuseisge construction OShear webbing OBUiLDING STRAIGHT e Applying PO cioth e lnstsiling pushrods e Servo installation e Covering film e Setting sp s sew radio e Eliminating warps e Built-up tail surfaces e Aligning Balancing e Slab tail surfaces e Final checkout e Aileron installation e PLUS MUCH MORE CREDIT CARD CUSTOMERS Use toll free number place order I-lava /IS4 MasterCard VISA ready call OR mail $2455 S & H TO MasterCardPLANE VIDEO PO Box 23128 Des Moines IA 50322 Iowa residents add 4% sales tax PLANE V0E PELPINGOU7 7077! 18003838251 tended Its low cost ruggedness great flyability will undoubtedly add its popularity Please read column next month full re port Rebels flyability setup noncollective flying general BCNU RC Pylon Racing/Hager Continued page 61 Greg Doe donated P-39 kit won drawing Tony Speck Frank Schwartz won Scat Cat kit Doug Robinson Hobby Express Columbus OH best crash Doug Whiteaker donated set cores plans Viper given first-placer Grunkemeyer Wayne Yeager presented trophies cash awards TURN Thanks everyone goodies Thanks involved great week end Racing OK Heres new Q-500 kit Ritchs Hobbies has just received its new Q-500 named Texas Outlaw kit sells under $80 Yes heard right Look what get Q-500 about 85% complete Texas Outlaw has winning races national championships since late Seventies has modified improved times over years incorporate latest rules spec ifications improve its performance under wide range course conditions new kit has designed long tail moment accommodate normal radio installa tion will come out about 20 oz assembled ready finish will allow keep close 3 i/s.Ib limit plane completely AMA legal quality kit Its available local hobby shops write call Ritchs Hobbies 4101 December 1989 167 GMP Rebel Characteristics Engine size 40/45 cu 65/75cc Main Rotor Span 42 1068mm Tail Rotor Span 10 254mm Main Rotor Speed 1600-1700 rpm hover Height 165 419mm Length 405 1029mm Weight with gyro 1 200-mAb bat tery pack 4-channel radio 55-65 lb Radio 4-channel Servos 4 required Gyro Not necessary would speed up learning pro cess
Edition: Model Aviation - 1989/12
Page Numbers: 60, 163, 167
MY report 1989 Toledo show mentioned Gorham Model Products working new Helicopter featuring noncollective Hiller steering aimed novice Helicopter pilot market Rebel now being shipped August 1989 GMP dealers has undergone consider able evolution prototype shown ledo know lot going leery reverting back ancient technology its simple Rebel very easy build fly looking backward towards simplicity experience have today GMP has able achieve classic mix old new has succeeded its quest producing lowcost high-quality rugged airframe suitable training particular goal satisfy air craft modeler already has 40-size engine spare four-channel radio available going list features Rebel found Introduction its instruction manual suitable words borrowed 'The Rebel exciting new 40/45powered RC entry-level Helicopter GMP added its ever-increasing range RC Helicop ters designed give interested begin ner opportunity fly RC Helicopters sacrifice quality reliability stability Rebel also perfect fun machine expert tool around sky take along family picnics Special features include ex tremely simple assembly low parts count rugged construction use standard air plane radios engines icopters have always renowned over world Although Rebel simple low-partscount Helicopter maintains tradition Highquality ball bearings utilized key area main chassis constructed -inthick aircraft-grade aluminum alloy longer life durability Rebel uses metric nuts bolts GMP models selected nearly worlds designers being superior small mechanisms rapidly becoming world standard metric hardware lighter since has smaller bolt heads nuts its use enables whole Helicopter design lighter compact threads finer hence bolt provides tensile strength given diameter Ninety percent worlds RC Helicopters now use metric hardware UMP Rebels met ric system world-standard inter changeable GMP Cricket Competitor Cobra Legend nearly Japanese Euro pean RC Helicopters Continued page 163 60 Model Aviation Radio Control Helicopters Larry Jolly 5501 W Como Santa Ana CA 92703 GMP aims entry-level chopper flier new Rebel Noteworthy features low cost simple mechanics easy accessibility wide-stance landing gear stable flight ease mainteneance adjustment does have collective pitch control main rotor Fixed-pitch main rotor allows ultra-simple ro- Rebels tail rotor gearbox familiar tor head swash plate Larry likes ma- GMP/Hirobo unit used other GMP ma Hel- chines toughness accessibilty chines Rebels secret sucess everything completeness quality GMP RCworking parts bolts metric sizesused tried proven Lots details Rebels mechanics visible Larry used Os 40 FSR aircraft engine its standard muffler Note belt-drive sys tem cooling fan shroud robust landing gear straight control runs cyclic tail rotor controls Larry built special battery/receiver tray get receiver up higher cabin Barely visible right tip crankshaft-mounted cone use standard electric starter mar units Given results above would seem reason able question ask high must high rate Surely rates between low-speed frame-rate types SC-4 highrate unit produce in-between results Also probably some high-rate value above little performance difference obtained sounds like winter project mefor come future first speed control matter great interest matter non-optically-coupled speed con trols glitching see October 89 MA page 59 get see test fly large number Electrics process experience wide variety flight performance results too often experience case motorinduced glitching recently saw case truly phenomenal level same effect plane unflyable fact ground range motor running measurable tens feet Substituting different radio significantly im proved situation concluded something wrong first radio advised pilot send warranty re pair brand new first asked could try something Since speed control case optically coupled wanted try separate speed control receiver radio frequencies installed three small chokes three speed-control-toreceiver leads effectively broke radio/speed control connection radio frequency DC servo-pulse-signal condi tions worked just great plane perfectly flyable what still believe defective radio Since success two other systems per formed normally meaning somewhat glitchy flyable similarly modified good results normal glitching reduced significantly sounds like some thing would useful 10microhenry chokes available Ace R/C Inc part #LL106 SOC photo herein shows installing cannot assure same success ra dio speed control power system can find out yourself few bucks lit tle time now speed control item up coming new big-motor unit soon announced S ES MILLS MET5LS 500KS PRECISI0s INST5YIE5TS C0NLETE 5T5LOG $200 Ku IbIs 1t,S 4MPIIU GLf c 2100 C S1,s Rooc Spr,gfo1d 1ioo 45505 Compac3 13 322-8562 Jomar intended use 24 32 cells dont have release date price writing Interest can call write Jomar see ad magazine get prompt reliable accu rate answer goes service too could name some places hobby doesnt happenbut wont dont ask either Electric supplies available littleknown source SR Batteries Its SR lit tIe known indeed very well knownbut batteries fact SR can supply wide range Electric goodies including Astro Jomar Robbe KSC other name brands discount prices addition popular SR batteries latter bring quite bit reader mail espe cially high-capacity Magnums seems readers have really taken liking l250sa cell specified 1250 mAb capac ity physical size nominal weight familiar 800 ARs Ive some interesting correspondence Larry Sribnick chief charge arry tells wont tell anyone else just what cell-secrets Larry maintains proprietary info regarding suppliers processes cant blame him Its se cret success Anyway case youre aware Larry will make up custom battery packs re quirements Check SR ad issue send note get SR catalog tells except secrets As closing note remember Electrics work just great winter its very easy keep em clean low temperatures cause theres no thick sticky goo wipe off plane Happy quiet Electric landings everyone RC Scale/Parsons Continued page 59 batteries much easier quicker ac curate old-style analog voltmeter Beckman Circuitmate DM15B compact high quality has good ranges fac tors make ideal both workshop field box paid around 60 bucks about five years ago RC Helicopters/Jolly Continued page 60 special new feature Rebel hi-tech composite rotor head After much designing ex perimenting flight testing GMP has devel oped unique rotor head offers utmost simplicity performance new rotor head consists one-piece ny lon center unit dual-ball-bearing-supported hub Hiller flybar control pivots nylon center unit Prebent blade holders automatically adjust main rotor blade pitch optimum setting Hence Rebel very easy set up has fewest parts count rotor head market provides lots inherent static stability maintaining very adequate acro batic capability main rotor blades specifically designed matched maximize flight performance Rebel combination unique airfoil blade chord dimensions has produced flight re sponse very conducive learning tly quickly little no damage model Cyclic control soft yet responsive Altitude control normally less effective other fixed-pitch Helicopters much improved Rebel climbs descends ease precision improved altitude control re sult extensive research testing led simple yet very effective rotor blade head design standard starting system Rebel cone start now demanded discriminating mod elers worldwide greatly eases starting process eliminates problems can arise starting belt-type system Rebel however OMP has developed sys tem further accommodate airplane fliers special adapter electric starter no longer needed Rebel designed use standard airplane starter cone fit ted electric starters However rub ber insert may need reversed smaller opening engages Rebels starting cone clutch classic GMP standard one-piece design machined steel plastic pro vides superior reliable performance GMP clutch unit times expensive manufacture other plastic some twopiece metal clutches available today gives smoother engagement drive performance lasts virtually forever clutch bell fitted special lining individually factoryfitted particular OMP kit provide cor rect engagement reliable operating perform ance will buy Rebel aimed toward Continued page 167 December 1989 163 BLUES CA getting down get protected CA mask Safety Plus mask will eliminate CA fumes epoxy polyester resin vapors air breath Lightweight easy breathing comfortable CA Mask $1595 Paint Mask $2045 See hobby dealer first doesnt have what need order direct Safety Plus PO Box 1173 Dept 12M Clinton Mississippi 39056 Call toll free 1-800-842-7233 Mississippi dial 601-924-9640 VISA MASTERCARD accepted COD add $250 shipping handling included Dealer Inquiries Invited PLU5 Bob FiorenzeI Hobby Center Inc Dealer Yellow Aircraft Complete Line Mail Order Hobby Suppliex Now available Faatcover Covering Material Welt Shownoom 35 mm Dextey woridl Omegaleool Power Fuela Diacountad Z 420 W.t SR 434--407 3274353 Winter Spdnga FL 32708 'Fax 407 327-7148 FOAM CORE FLOATS PLANS AND KITS WE OFFER SELECTION OF FLOAT PLANS AND KITS FOR 4 12 POUND AIRPLANES WITH V HULL lESION IN USE SIIWE 1972 SEND SASE FOR CATALOG SHEET KIRCHER R/C PRODUCTS INC 9 SHEFFIELD WAY CLARK NJ 07066 RC Helicopters/Jolly Continued page 163 person interested trying RC Helicop ters hut cannot justify expense buying special heli-radios engines needed todays complex Helicopters Therefore Rebel designed around ever-popular 40/45size airplane engines inexpensive fourchannel radios already possession people dramatically reduces entry cost level people can try RC Helicopter challenge engine Rebel faces side Hel icopter profile-type stiff-winged models facilitate quick glow plug changes mounted mainframe via separate alumi num plate permits easy engine access re moval headaches sometimes associated engine change removal servicing greatly simplified GMP Rebel Rebels tail rotor uses tried-and-proven UMP Cobra/Competitor tail rotor gearbox unit comes factory assembled complete greased gears bearings Ball bearing blade holders complete assembly producing tail rotor system provides very smooth con trol response nd regular lubrication virtu ally unlimited life What kit like Rebel kit received early So mention something correction has already incorporated kit buy dont surprised GMP con stantly updating improving its line recom mendations suggestions have come its field representatives kit well packed quality noticeable throughout metal parts nicely finished main airframe being anodized black Rebel instruction manual has 39 pages explanations illustrations dont think will have trouble manual Rebel builds fast Mine took five hours followed word manual mounting hardware bag should deposited acceptable container drawn upon needed assembly screw sizes types illustrated manual handy metric scale printed bottom several pages instructions clear would like add following help first-time builder 1 When installing clutch assembly engine no mention made checking start ing shaft runout runout measured devia tion perfect alignmentEd task less important Rebel some other machines like see shaft runout small possible cut down vibration havent checked shaft before obtain copy Ray Hostetlers book RCM magazine explains great detail tells spot fix 2 In Stage 4 assembling canopy standoffs original mounting hole sideframe too low should redrilled moved forward upward about / way 3 In Stage 5 would like see step post poned difficulty getting cooling fan mount using location holes molded housing Instead slid housing over fan mounted engines drive belt made sure engine proper angle posi tion relation drive pulley before mount ing fan-cover brackets mainframe held fan housing position rotated fan hand using starting cone iwith glow plug Out engine listening care fully fan rub fan housing position adjusted until its proper loca tion marked mounting bracket holes felt pen scribe remove engine-mounting plate drill fan housing mount brackets Running scribe two sides engine plate before removing will make easier relocate plate unit reassembled 4 While Stage 5 1 would suggest drilling additional hole through mounting plate side frame Its location critical Clean anodizing away side hole Insert screw nonanodized washers under both head nut tighten down screw will act electrically ground mounting plate engine side frames will also good idea use sheet metal screw inserted through tail boom mount tail tube will ensure total electric continuity through out metal frame machine will help guard against unwanted radio interference 5 In stage 7 servo trays assembled Its bad idea back up main servo carrier additional layer supplied material As tray flexible can deflect under fore/aft servo loads Also helpful build battery/receiver tray did hold receiver higher canopy see photo 6 In stage 10 assembly tail rotor gear box finished gearbox comes mostly assembled would suggest checking make sure everything should tight Also note tail control attaches aft side blade holder 7 In stage 16 found easier put fuel filter left side machine cabin conceals its mounted shown right side 8 In stage 18 would suggest using 1200mAh Ni-Cd flight pack Rebel balances per fectly place smaller pack used lead ballast will necessary achieve proper balance dont see need further clarifica tions manual well written particularly setup flying instructions set up Rebel OS 40 FSR aircraft engine utilizing supplied aircraft muffler guidance installed Futaba 7 FGH S-130 servos 1200mAh flight pack As day wrote column have about 15 minutes hovering time Rebel have yet fly circuits am already impressed models stability control authority have also noted Rebel champion highspeed backward flight no dipping tail/nose swapping noted summary new GMP Rebel very nice kit perfectly suits market inNEW VHS-4 HOUR FORMAT ~P tape youve ~ waiting finally here! youre new hobby lust want learn secret of wood plane construction forYOU PLANE VIDEO Presents BUILDING IT RIGHT THE FIRST TIME FIRST NO-NONSENSE VIDEO OF WOOD AIRCRAFT CONSTRUCTION APPROX 4 HOURS ON e Radio installation e Fuci tank insisilation e Straight wing buiiding e New engine setup e Instailing hinges e Fuseisge construction OShear webbing OBUiLDING STRAIGHT e Applying PO cioth e lnstsiling pushrods e Servo installation e Covering film e Setting sp s sew radio e Eliminating warps e Built-up tail surfaces e Aligning Balancing e Slab tail surfaces e Final checkout e Aileron installation e PLUS MUCH MORE CREDIT CARD CUSTOMERS Use toll free number place order I-lava /IS4 MasterCard VISA ready call OR mail $2455 S & H TO MasterCardPLANE VIDEO PO Box 23128 Des Moines IA 50322 Iowa residents add 4% sales tax PLANE V0E PELPINGOU7 7077! 18003838251 tended Its low cost ruggedness great flyability will undoubtedly add its popularity Please read column next month full re port Rebels flyability setup noncollective flying general BCNU RC Pylon Racing/Hager Continued page 61 Greg Doe donated P-39 kit won drawing Tony Speck Frank Schwartz won Scat Cat kit Doug Robinson Hobby Express Columbus OH best crash Doug Whiteaker donated set cores plans Viper given first-placer Grunkemeyer Wayne Yeager presented trophies cash awards TURN Thanks everyone goodies Thanks involved great week end Racing OK Heres new Q-500 kit Ritchs Hobbies has just received its new Q-500 named Texas Outlaw kit sells under $80 Yes heard right Look what get Q-500 about 85% complete Texas Outlaw has winning races national championships since late Seventies has modified improved times over years incorporate latest rules spec ifications improve its performance under wide range course conditions new kit has designed long tail moment accommodate normal radio installa tion will come out about 20 oz assembled ready finish will allow keep close 3 i/s.Ib limit plane completely AMA legal quality kit Its available local hobby shops write call Ritchs Hobbies 4101 December 1989 167 GMP Rebel Characteristics Engine size 40/45 cu 65/75cc Main Rotor Span 42 1068mm Tail Rotor Span 10 254mm Main Rotor Speed 1600-1700 rpm hover Height 165 419mm Length 405 1029mm Weight with gyro 1 200-mAb bat tery pack 4-channel radio 55-65 lb Radio 4-channel Servos 4 required Gyro Not necessary would speed up learning pro cess