Radio Technique George M Myers USING new frequencies Please under stand am writing September 1982 anticnation ofan FCC report order assign ing us long-needed new channels follow ing manufacturers have made known wil lingness convert existing equipment use new channels listed below Manufacturer Conversion Service Airtronics Exchange crystals retune* Circus Hobbies Exchange crystals retune* Futaba Exchange crystals retune* World Engines Exchange crystals retune* Kraft Exchange modulesS30 *Cost SI 0 Probably limited-ti offer frequencies AMA suggests Airplanes Only 7203 7255 7259726372677271727572797283 7287 and 7291 also recommended fliers 7564 have two sets myself get off Either convert set other 75 MHz frequencies use boat car con vert 72 MHz Airplane Only frequencies listed above dont have make move right away Youve got five years until FCC rules off permanently Convening old wide-band receiver doesnt Left George mixing photography Helicopters time Larry Sribniks Kodak disc camera housed padded cell attached Georges Heliboy case fabricated alumuium lithograph ers sheet bolted copter frame shield RF interference cameras integral electric film-advance motor viewport camera lens UV filterglued box electric eye looks through piece lucite tail boom brace has covered black tape anticipating itwould field view An Airtronics Micro servo worked shutter release Starting upper left corner photo montage B&W Kodacolor Disc negative below working clockwise see some aerial photos disc camera George R flies chopper Larry Sribnik IL takes pictures flipping Gear switch transmitter Larry also took picture Heliboy installation scenes beach/pit/spec tator area atthe Suffolk Wings 3rd Annual Seaplane Contest held East Islip Town Beach Lake Ronkonkoma NY October 3 1982 Fun-Fli contest features Sinkthe Bismarckan event uses large model ship target bomb drop Winners Lou Schwab Greg Cardillo Ira Jersey Bob Brassel andTony Larardera Heliboys tailboom brace tail skid tip visible photos make narrow-band unit Youll still have buy new narrow-band receiver sometime during next eight years Message received understood safety-of-flight gadget 1 first started thinking idea time Ive seen Helicopter engine stop flight machine crashed earth near-vertical parabolic arc Most Helicopter flying Ive done witnessed takes place altitudes 50 feet less simply doesnt leave time space enough autorotation save machine other hand tank Heliboy good about half-hour running forward flight takes place part throttle about 50mph battery wire should break its possible machine could fly away wide arc climbing fuel burns off come earth 20 miles away need on-board device will shut down engine following reasons Loss on-board battery power radio 2 Loss signal transmitter 3 Severe RF interference lasts couple seconds think 5sec delay would adeauate Helicopter fliers acutely aware damage main rotor blades can inflict Several have shown stitched scars arms legs far stitches required required number seems six Anyhow being aware risk practically everyone keeps far people houses roads no stays far enough away account fly-a ways Ive heard tales people trying down runaway machines throwing useless transmitter articles clothing main rotor blades far can throw yourjacket fast can run pulling off trousers has better way Perhaps reason havent heard much about flyaway Helicopters traveling great dis tances about 95% Helicopter flying has hovering done low altitudes out-of-control situations resulted crashes Yes Phil Abatelli LI dares fly Helicopter special Helicopter ra dios Heres Phil Baron 20 Kraft Sport 5-channel rig eases pain using Ace RC Christy Mixer mix throttle tail rotor Theres information column short distance away Thats about change because people learning fly day since better iiiachines on-board stabilizers available today make Helicopter flying slightly difficult stiff-wing airplane flying simple spring may provide answer need use throttle has very low friction could also use ball-bearing coreless-motor throttle servo Such throttles servos can rather easily fitted spring working OFF direction Once battery voltaee removed nrino crni nvernnwer servo coreless-motor servos offer almost no resistance power oIl engine will stop dont know what constantly running against spring load will servo seems reasonable expect some reduction useful life Only time some tests will tell whether such reduction significant Would believe shortly after finishing months column got word World Engines about new OS Helicopter throttle Part No 18909 60 chopper engine works just like details yet like availability price know throttle barrel rides ball bearings has idle-return spring course used Servo Gard see next paragraph can protect against throttle linkage failure broken wire servo ball bearings reduce frictionand youd still have use coreless-motor servo get rid mechanical resistance dead servo equal importance fact new throttle optimized mid-range response big plus Helicopters since much Continued page 125 January 198329 Above Modified ervo uara inssaiiaiion proviae positive engine shutdown event loss control cause Parts required Servo Gard Y-harness switch harness 250 mAh orSOO mAh battery pack modification consists removing Red wire plug pigtail Servo Gardto isolate battery packs Below Figure 1 depicts typical control-stickto-servoresponse transfer function linear RC system Figure 2 shows transferfunction results adding linear gyro servothe net servo arm response reduced dealt lengthening servo arm Figure 3 shows transfer function results Kraft Super Gyro used servothe gyros influence diminishes stick motion increases thereby restoring net response existed Super Gyro release tab too near TE could make some models tail-heavy pod attached rubberbands nylon bolts can used Install blocks bottom wing curved strip ailerons add blocks allow space aileron throw Follow photo sequence packing Test release over bed Since chutist exits plane about 450 should hold nose pod up 450 simulation hold pod level Since no slipstream chutist will exit straight down may damage fabric edge tube actual flight exit will smooth silk Work out malfunctions before trying model choose test chute building pack chute Launch chute already open Select calm day can interpret what happening should able complete full 3600 turn about 100 feet less Two things will make turns slow too little weight TE deflected enough turns chutist underweight will float turn slowly fail penetrate headwind best chutist can hold its ground position 10 mph wind turns too fast straight flight too tricky reduce weight lengthen steering lines first real jump choose calm day Spotting jump point takes practice amount wind problem becomes difficult Release about 300 feet upwind plane about 450 elevation Pull transmitter sticks back immediately release hold sticks down will increase strain servos chute opens Try have arms up position opens occurs about 15 feet behind model best have model ttle sure model choose has stab chutist will clear Also beware antenna wires counter balances stab other items could snag chute lines Stay off controls first Like wing chute will show up warps its glide Adjust lines overcome test steering pulling control stick direction want chutist going overhead turn wind try hold position chutist dropping front turn downwind increase speed toward making dead-stick landing Hitting target takes practice chutist rolls landing lines tangled study carefully usually takes two moves straighten out Ive hung Chris over car antenna over bee nest Lets hope landings will good ones have much fun learning jump weve 9 STUN LKi 4/C MODEL SPONSORED BY REDWOOD MODELERS MARCH 4-51983 EL RANCHO-TROPICANA SANTA ROSA CALIF SHOW HOURS SAT 10-6 SUN 10-4 EUAA REGISTRATION 9am TO 2 pm SATURDAY DEMONSTRATIONS MANUFACTURERS SPLAYS RETAIL WELCOME RW#S LATEST R/C ENGINES- KITS AccESSoRIES-TOOLS AUCTI ON Ip SUNtY-BRINGALLvUR OLD STUPPJ WDS TO 3rd PLACE ALL CATAGORIES OFF RAMP ARDS BANQUET DINNER 730 pun SAT ADMISSION $2OOUNDER 12 FREE S F SO MILES Radio Technique/Myers Continued page 29 flying done part-throttle See going help more people get Heli copters Another possibility exists Servo Gard manufactured RF Enterprises 106 North Main Street Arlington OH 45814 @ $3795 postpaid can several things 1 Shut throttle down preset value flight pack battery voltage drops below some preset number about 46 VDCyou can set throttle shutdown point value lets chopper descend comfortable rate still under control other control channels 2 Shut down throttle same point described previous item after loss control pulses receiverifthe rest ofthe system actually functioning properly can bring engine speed up again pulses resume Now two fine battery wire breaks Servo Gard cant anything can fixed minor modifica tion addition standby battery pack see sketch 3 modifications total primary battery failure will still cause Throttle servo run preset value chopper will descend no other controls func tioning crash Sure maybe severe totally-out-of-control situation think descent under power somewhat less likely destroy Helicopter would total stoppage engine depends hits wherever has superior flyaway whatever would follow after total battery system failure Having warning shutdown occur before battery exhaus tion makes system unflyable strikes DOUG BOUCHER 506 EL DORADO CT SANTA ROSACAL 95401 107-528-0264 or 107-539-3373 off cant ship until get ur order Choose design red R black B royal blue fD sky blue 5 caps fits Only $6 postpaid 4 $20 Christen Eagle BCE Corsair BF4Fortress B17 Lightning B38Liberator B24 Warhawk B40Mitchell BZS Mustang B51Superfortress B29 Spitfire BSPPhantom BP4 Sabre B86Tomcat B14 Dozens catalog send SASE Send check money order FIightIine Shirts Etc Department MA 1781 Johnmark Circle Grants Pass OR 97526 Name Address City State ZipDesignCap Color January 1983 125 III B7ivht4 lb 6 oz ignition liIler bearing flywheel Ball bearing rear Hemi-head chamber Schneurle ported 2 pc con rodbearings Chrome plated cylinder Magnesium case Balanced crank Pyramid reed intake Built-in choke Height 725 LowerWidth Shaft center Pricewidest point 30 Total Width 525 $259Mounting plate prop 00 See local hobby shop Hell order stock CONTEMPO HOBBY PRODUCTS 11611 CANTARA ST H HOLLYWOOD CA 91605 division Contemoo Enterorises being worthwhile plus Will buy use Youre still mercy RC interference always Rick Williams RF Enterprises tells hes working Watch column fuLure developments attention matters safety Give thought SR Batteries Box 287 Bellport NY 11713 SR batteries really have intemal connections welded place cut open check see photo Helicopters vi brate hard batteries need extra safety features can get packs give strain-relief 1oops intercell straps photo last months column flexible intercell adhesive polyolefin packaging Im gradually shifting battery packs SR Batteries No gyro another useful gadget otthe photos shows Phil Abatelli Kraft Sport radio Baron 20 Helicopter Baron 20 Circus Hobbies collective-pitchcontrolled machine such can flown either four five servos However no mechanical tail rotor compensation provided Therefore wish fly Baron 20 similar machine usual RC airplane radio either lot rudder flying find another way Phil used Christy Mixer 26K1 1 Unidirectional $2995 Ace RC Inc mix Throttle Rudder get necessary compensation Phil used 50/50 Matched Performance System TOP PERFORMANCE K&B ENGINES Airplane 4 Marine K&B FUELSK&B GLOW PLUGS 7 Bleeds4 choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micrs-Ballsons FILLER K&B SUPER POSY RESIN K&B SUPER POSY THINNER K&B SUPER POSY PRIMER K&B SUPER POSY PAINT K&B MIXING CUPS 5. provided Ace RC made final ad justments finding best position tailrotor bellcrank sketch shows electrical connections used See dont have buy special Helicopter radio dont want Phil uses basic Kraft Sport five-channel Kraft Super Gyro gyros fight against attempts turn aircraft leads lengthen arm tail rotor servo and/or shorten control hom doing able retain full control authority another way however Kraft Super Gyro uses What happens leave trim control stick centered Super Gyro has full authority displace control stick gyro influence reduced electronically inside gyros amplifier get full control throw youre alone works great fact used Baron 20 XPO Aces Curve No2 Rudder control like feel better obtained Watson Stabilizer though Watson much quicker respond Kraft Super Gyro want control get Watson Stabilizer get constant stabilized rate yawing proportional stick deflection Neither way better Theyre just different Beginners prefer Watson Stabil izer effect So using Helicopter mobile camera platform George M Mters 70 Froehlich Farm Rd Hicksville NY 11801 LS F Pruss Continued page 33 event task simple run yet formidable its challenge Simply explained flier launched first flew quarter mile upwind distance easily seen flier still launch area Signalmen flagged quartermile turn flier flew back over launch area proceeded quarter mile downwindall course lift Again signal flier turned flew back launch areathereby covering mile flight ever having walk away launch spot task against clock Distance task also Speed Yet-without lift thermal activity task couldnt completed Buck Faure won year true flavor LSF Tournaments persisted 1 26 Model Aviation p IN oi uu FOR vmun u New 22 CDl QUADRA $10495 Reg 22 QUADRA $5496 Belsighelle Flywheel *11496 Reg 22 QUADRA POWER ASSEMBLY ONLY96496 QUADRA REPAIR$1000 plus pert PbW RADIAL ENGINES Fleet$2296 JIm Mess ERCOUPE PLANS $2396 KIT $22996 JIm Meeeer TOMAHAWKPLANS $2296 KIT $24996 BALSA 6ASS WOOD elI eieel 39% OFF Conce C FLEETKIT $17996 FG COWL $1996 QUAD4A fuel tenke160 $696 22 oz *796 V VICKERS LEWIS MACHINE GUN KITS$1496 ALL CECONITE PRODUCTS19% OFF PLANS SUPER STEARMAN IGod$reyl$2800 STARDUSTER TOO V IBrIsIghellel$2996 54 seele J3 CUB lnelltz FLEET IConeeptl$2996 VOLKSPLANE 54 IChlcken Cherliel$2296 FLY BABY $1996 SE-5 IRsusehl $2496 COCKPIT KITS Tomahewk MU1 Spitfire $2196 Ercoupe $1996 Steermen $2096 Citabrie $2496 j2 Cub $1996 ME-lOB $2150 Fleet $2096 FIBERGLASS ARROW SHAFTS 6116x 32 1g6I$1000 24-Hour ~.. Add S250 postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 106 Valley View Dr Allegany NY 14706 Heres SR battery Cut open prove internal Connections actually Welded Posi hive negative plates offset about 050 before rolled Cylinder sharp-edged Channel IS pressed ends plates Weldedproviding four connections per turn Channel turn Welded end cap SR Batteries Inc Box 287 Bellport NY 11713 l4l -ID ENG LANDING GEAR FOR BIGGIES Custum hilt aircraft aluminum t ynur spucs.nxtra strung lightumight includus EXItS $2250 up 0 & 0 ENGINEERING 305 6371 SW 2nd St gig-oeiiMargata Fl 33063
Edition: Model Aviation - 1983/01
Page Numbers: 28, 29, 125, 126
Radio Technique George M Myers USING new frequencies Please under stand am writing September 1982 anticnation ofan FCC report order assign ing us long-needed new channels follow ing manufacturers have made known wil lingness convert existing equipment use new channels listed below Manufacturer Conversion Service Airtronics Exchange crystals retune* Circus Hobbies Exchange crystals retune* Futaba Exchange crystals retune* World Engines Exchange crystals retune* Kraft Exchange modulesS30 *Cost SI 0 Probably limited-ti offer frequencies AMA suggests Airplanes Only 7203 7255 7259726372677271727572797283 7287 and 7291 also recommended fliers 7564 have two sets myself get off Either convert set other 75 MHz frequencies use boat car con vert 72 MHz Airplane Only frequencies listed above dont have make move right away Youve got five years until FCC rules off permanently Convening old wide-band receiver doesnt Left George mixing photography Helicopters time Larry Sribniks Kodak disc camera housed padded cell attached Georges Heliboy case fabricated alumuium lithograph ers sheet bolted copter frame shield RF interference cameras integral electric film-advance motor viewport camera lens UV filterglued box electric eye looks through piece lucite tail boom brace has covered black tape anticipating itwould field view An Airtronics Micro servo worked shutter release Starting upper left corner photo montage B&W Kodacolor Disc negative below working clockwise see some aerial photos disc camera George R flies chopper Larry Sribnik IL takes pictures flipping Gear switch transmitter Larry also took picture Heliboy installation scenes beach/pit/spec tator area atthe Suffolk Wings 3rd Annual Seaplane Contest held East Islip Town Beach Lake Ronkonkoma NY October 3 1982 Fun-Fli contest features Sinkthe Bismarckan event uses large model ship target bomb drop Winners Lou Schwab Greg Cardillo Ira Jersey Bob Brassel andTony Larardera Heliboys tailboom brace tail skid tip visible photos make narrow-band unit Youll still have buy new narrow-band receiver sometime during next eight years Message received understood safety-of-flight gadget 1 first started thinking idea time Ive seen Helicopter engine stop flight machine crashed earth near-vertical parabolic arc Most Helicopter flying Ive done witnessed takes place altitudes 50 feet less simply doesnt leave time space enough autorotation save machine other hand tank Heliboy good about half-hour running forward flight takes place part throttle about 50mph battery wire should break its possible machine could fly away wide arc climbing fuel burns off come earth 20 miles away need on-board device will shut down engine following reasons Loss on-board battery power radio 2 Loss signal transmitter 3 Severe RF interference lasts couple seconds think 5sec delay would adeauate Helicopter fliers acutely aware damage main rotor blades can inflict Several have shown stitched scars arms legs far stitches required required number seems six Anyhow being aware risk practically everyone keeps far people houses roads no stays far enough away account fly-a ways Ive heard tales people trying down runaway machines throwing useless transmitter articles clothing main rotor blades far can throw yourjacket fast can run pulling off trousers has better way Perhaps reason havent heard much about flyaway Helicopters traveling great dis tances about 95% Helicopter flying has hovering done low altitudes out-of-control situations resulted crashes Yes Phil Abatelli LI dares fly Helicopter special Helicopter ra dios Heres Phil Baron 20 Kraft Sport 5-channel rig eases pain using Ace RC Christy Mixer mix throttle tail rotor Theres information column short distance away Thats about change because people learning fly day since better iiiachines on-board stabilizers available today make Helicopter flying slightly difficult stiff-wing airplane flying simple spring may provide answer need use throttle has very low friction could also use ball-bearing coreless-motor throttle servo Such throttles servos can rather easily fitted spring working OFF direction Once battery voltaee removed nrino crni nvernnwer servo coreless-motor servos offer almost no resistance power oIl engine will stop dont know what constantly running against spring load will servo seems reasonable expect some reduction useful life Only time some tests will tell whether such reduction significant Would believe shortly after finishing months column got word World Engines about new OS Helicopter throttle Part No 18909 60 chopper engine works just like details yet like availability price know throttle barrel rides ball bearings has idle-return spring course used Servo Gard see next paragraph can protect against throttle linkage failure broken wire servo ball bearings reduce frictionand youd still have use coreless-motor servo get rid mechanical resistance dead servo equal importance fact new throttle optimized mid-range response big plus Helicopters since much Continued page 125 January 198329 Above Modified ervo uara inssaiiaiion proviae positive engine shutdown event loss control cause Parts required Servo Gard Y-harness switch harness 250 mAh orSOO mAh battery pack modification consists removing Red wire plug pigtail Servo Gardto isolate battery packs Below Figure 1 depicts typical control-stickto-servoresponse transfer function linear RC system Figure 2 shows transferfunction results adding linear gyro servothe net servo arm response reduced dealt lengthening servo arm Figure 3 shows transfer function results Kraft Super Gyro used servothe gyros influence diminishes stick motion increases thereby restoring net response existed Super Gyro release tab too near TE could make some models tail-heavy pod attached rubberbands nylon bolts can used Install blocks bottom wing curved strip ailerons add blocks allow space aileron throw Follow photo sequence packing Test release over bed Since chutist exits plane about 450 should hold nose pod up 450 simulation hold pod level Since no slipstream chutist will exit straight down may damage fabric edge tube actual flight exit will smooth silk Work out malfunctions before trying model choose test chute building pack chute Launch chute already open Select calm day can interpret what happening should able complete full 3600 turn about 100 feet less Two things will make turns slow too little weight TE deflected enough turns chutist underweight will float turn slowly fail penetrate headwind best chutist can hold its ground position 10 mph wind turns too fast straight flight too tricky reduce weight lengthen steering lines first real jump choose calm day Spotting jump point takes practice amount wind problem becomes difficult Release about 300 feet upwind plane about 450 elevation Pull transmitter sticks back immediately release hold sticks down will increase strain servos chute opens Try have arms up position opens occurs about 15 feet behind model best have model ttle sure model choose has stab chutist will clear Also beware antenna wires counter balances stab other items could snag chute lines Stay off controls first Like wing chute will show up warps its glide Adjust lines overcome test steering pulling control stick direction want chutist going overhead turn wind try hold position chutist dropping front turn downwind increase speed toward making dead-stick landing Hitting target takes practice chutist rolls landing lines tangled study carefully usually takes two moves straighten out Ive hung Chris over car antenna over bee nest Lets hope landings will good ones have much fun learning jump weve 9 STUN LKi 4/C MODEL SPONSORED BY REDWOOD MODELERS MARCH 4-51983 EL RANCHO-TROPICANA SANTA ROSA CALIF SHOW HOURS SAT 10-6 SUN 10-4 EUAA REGISTRATION 9am TO 2 pm SATURDAY DEMONSTRATIONS MANUFACTURERS SPLAYS RETAIL WELCOME RW#S LATEST R/C ENGINES- KITS AccESSoRIES-TOOLS AUCTI ON Ip SUNtY-BRINGALLvUR OLD STUPPJ WDS TO 3rd PLACE ALL CATAGORIES OFF RAMP ARDS BANQUET DINNER 730 pun SAT ADMISSION $2OOUNDER 12 FREE S F SO MILES Radio Technique/Myers Continued page 29 flying done part-throttle See going help more people get Heli copters Another possibility exists Servo Gard manufactured RF Enterprises 106 North Main Street Arlington OH 45814 @ $3795 postpaid can several things 1 Shut throttle down preset value flight pack battery voltage drops below some preset number about 46 VDCyou can set throttle shutdown point value lets chopper descend comfortable rate still under control other control channels 2 Shut down throttle same point described previous item after loss control pulses receiverifthe rest ofthe system actually functioning properly can bring engine speed up again pulses resume Now two fine battery wire breaks Servo Gard cant anything can fixed minor modifica tion addition standby battery pack see sketch 3 modifications total primary battery failure will still cause Throttle servo run preset value chopper will descend no other controls func tioning crash Sure maybe severe totally-out-of-control situation think descent under power somewhat less likely destroy Helicopter would total stoppage engine depends hits wherever has superior flyaway whatever would follow after total battery system failure Having warning shutdown occur before battery exhaus tion makes system unflyable strikes DOUG BOUCHER 506 EL DORADO CT SANTA ROSACAL 95401 107-528-0264 or 107-539-3373 off cant ship until get ur order Choose design red R black B royal blue fD sky blue 5 caps fits Only $6 postpaid 4 $20 Christen Eagle BCE Corsair BF4Fortress B17 Lightning B38Liberator B24 Warhawk B40Mitchell BZS Mustang B51Superfortress B29 Spitfire BSPPhantom BP4 Sabre B86Tomcat B14 Dozens catalog send SASE Send check money order FIightIine Shirts Etc Department MA 1781 Johnmark Circle Grants Pass OR 97526 Name Address City State ZipDesignCap Color January 1983 125 III B7ivht4 lb 6 oz ignition liIler bearing flywheel Ball bearing rear Hemi-head chamber Schneurle ported 2 pc con rodbearings Chrome plated cylinder Magnesium case Balanced crank Pyramid reed intake Built-in choke Height 725 LowerWidth Shaft center Pricewidest point 30 Total Width 525 $259Mounting plate prop 00 See local hobby shop Hell order stock CONTEMPO HOBBY PRODUCTS 11611 CANTARA ST H HOLLYWOOD CA 91605 division Contemoo Enterorises being worthwhile plus Will buy use Youre still mercy RC interference always Rick Williams RF Enterprises tells hes working Watch column fuLure developments attention matters safety Give thought SR Batteries Box 287 Bellport NY 11713 SR batteries really have intemal connections welded place cut open check see photo Helicopters vi brate hard batteries need extra safety features can get packs give strain-relief 1oops intercell straps photo last months column flexible intercell adhesive polyolefin packaging Im gradually shifting battery packs SR Batteries No gyro another useful gadget otthe photos shows Phil Abatelli Kraft Sport radio Baron 20 Helicopter Baron 20 Circus Hobbies collective-pitchcontrolled machine such can flown either four five servos However no mechanical tail rotor compensation provided Therefore wish fly Baron 20 similar machine usual RC airplane radio either lot rudder flying find another way Phil used Christy Mixer 26K1 1 Unidirectional $2995 Ace RC Inc mix Throttle Rudder get necessary compensation Phil used 50/50 Matched Performance System TOP PERFORMANCE K&B ENGINES Airplane 4 Marine K&B FUELSK&B GLOW PLUGS 7 Bleeds4 choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micrs-Ballsons FILLER K&B SUPER POSY RESIN K&B SUPER POSY THINNER K&B SUPER POSY PRIMER K&B SUPER POSY PAINT K&B MIXING CUPS 5. provided Ace RC made final ad justments finding best position tailrotor bellcrank sketch shows electrical connections used See dont have buy special Helicopter radio dont want Phil uses basic Kraft Sport five-channel Kraft Super Gyro gyros fight against attempts turn aircraft leads lengthen arm tail rotor servo and/or shorten control hom doing able retain full control authority another way however Kraft Super Gyro uses What happens leave trim control stick centered Super Gyro has full authority displace control stick gyro influence reduced electronically inside gyros amplifier get full control throw youre alone works great fact used Baron 20 XPO Aces Curve No2 Rudder control like feel better obtained Watson Stabilizer though Watson much quicker respond Kraft Super Gyro want control get Watson Stabilizer get constant stabilized rate yawing proportional stick deflection Neither way better Theyre just different Beginners prefer Watson Stabil izer effect So using Helicopter mobile camera platform George M Mters 70 Froehlich Farm Rd Hicksville NY 11801 LS F Pruss Continued page 33 event task simple run yet formidable its challenge Simply explained flier launched first flew quarter mile upwind distance easily seen flier still launch area Signalmen flagged quartermile turn flier flew back over launch area proceeded quarter mile downwindall course lift Again signal flier turned flew back launch areathereby covering mile flight ever having walk away launch spot task against clock Distance task also Speed Yet-without lift thermal activity task couldnt completed Buck Faure won year true flavor LSF Tournaments persisted 1 26 Model Aviation p IN oi uu FOR vmun u New 22 CDl QUADRA $10495 Reg 22 QUADRA $5496 Belsighelle Flywheel *11496 Reg 22 QUADRA POWER ASSEMBLY ONLY96496 QUADRA REPAIR$1000 plus pert PbW RADIAL ENGINES Fleet$2296 JIm Mess ERCOUPE PLANS $2396 KIT $22996 JIm Meeeer TOMAHAWKPLANS $2296 KIT $24996 BALSA 6ASS WOOD elI eieel 39% OFF Conce C FLEETKIT $17996 FG COWL $1996 QUAD4A fuel tenke160 $696 22 oz *796 V VICKERS LEWIS MACHINE GUN KITS$1496 ALL CECONITE PRODUCTS19% OFF PLANS SUPER STEARMAN IGod$reyl$2800 STARDUSTER TOO V IBrIsIghellel$2996 54 seele J3 CUB lnelltz FLEET IConeeptl$2996 VOLKSPLANE 54 IChlcken Cherliel$2296 FLY BABY $1996 SE-5 IRsusehl $2496 COCKPIT KITS Tomahewk MU1 Spitfire $2196 Ercoupe $1996 Steermen $2096 Citabrie $2496 j2 Cub $1996 ME-lOB $2150 Fleet $2096 FIBERGLASS ARROW SHAFTS 6116x 32 1g6I$1000 24-Hour ~.. Add S250 postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 106 Valley View Dr Allegany NY 14706 Heres SR battery Cut open prove internal Connections actually Welded Posi hive negative plates offset about 050 before rolled Cylinder sharp-edged Channel IS pressed ends plates Weldedproviding four connections per turn Channel turn Welded end cap SR Batteries Inc Box 287 Bellport NY 11713 l4l -ID ENG LANDING GEAR FOR BIGGIES Custum hilt aircraft aluminum t ynur spucs.nxtra strung lightumight includus EXItS $2250 up 0 & 0 ENGINEERING 305 6371 SW 2nd St gig-oeiiMargata Fl 33063
Edition: Model Aviation - 1983/01
Page Numbers: 28, 29, 125, 126
Radio Technique George M Myers USING new frequencies Please under stand am writing September 1982 anticnation ofan FCC report order assign ing us long-needed new channels follow ing manufacturers have made known wil lingness convert existing equipment use new channels listed below Manufacturer Conversion Service Airtronics Exchange crystals retune* Circus Hobbies Exchange crystals retune* Futaba Exchange crystals retune* World Engines Exchange crystals retune* Kraft Exchange modulesS30 *Cost SI 0 Probably limited-ti offer frequencies AMA suggests Airplanes Only 7203 7255 7259726372677271727572797283 7287 and 7291 also recommended fliers 7564 have two sets myself get off Either convert set other 75 MHz frequencies use boat car con vert 72 MHz Airplane Only frequencies listed above dont have make move right away Youve got five years until FCC rules off permanently Convening old wide-band receiver doesnt Left George mixing photography Helicopters time Larry Sribniks Kodak disc camera housed padded cell attached Georges Heliboy case fabricated alumuium lithograph ers sheet bolted copter frame shield RF interference cameras integral electric film-advance motor viewport camera lens UV filterglued box electric eye looks through piece lucite tail boom brace has covered black tape anticipating itwould field view An Airtronics Micro servo worked shutter release Starting upper left corner photo montage B&W Kodacolor Disc negative below working clockwise see some aerial photos disc camera George R flies chopper Larry Sribnik IL takes pictures flipping Gear switch transmitter Larry also took picture Heliboy installation scenes beach/pit/spec tator area atthe Suffolk Wings 3rd Annual Seaplane Contest held East Islip Town Beach Lake Ronkonkoma NY October 3 1982 Fun-Fli contest features Sinkthe Bismarckan event uses large model ship target bomb drop Winners Lou Schwab Greg Cardillo Ira Jersey Bob Brassel andTony Larardera Heliboys tailboom brace tail skid tip visible photos make narrow-band unit Youll still have buy new narrow-band receiver sometime during next eight years Message received understood safety-of-flight gadget 1 first started thinking idea time Ive seen Helicopter engine stop flight machine crashed earth near-vertical parabolic arc Most Helicopter flying Ive done witnessed takes place altitudes 50 feet less simply doesnt leave time space enough autorotation save machine other hand tank Heliboy good about half-hour running forward flight takes place part throttle about 50mph battery wire should break its possible machine could fly away wide arc climbing fuel burns off come earth 20 miles away need on-board device will shut down engine following reasons Loss on-board battery power radio 2 Loss signal transmitter 3 Severe RF interference lasts couple seconds think 5sec delay would adeauate Helicopter fliers acutely aware damage main rotor blades can inflict Several have shown stitched scars arms legs far stitches required required number seems six Anyhow being aware risk practically everyone keeps far people houses roads no stays far enough away account fly-a ways Ive heard tales people trying down runaway machines throwing useless transmitter articles clothing main rotor blades far can throw yourjacket fast can run pulling off trousers has better way Perhaps reason havent heard much about flyaway Helicopters traveling great dis tances about 95% Helicopter flying has hovering done low altitudes out-of-control situations resulted crashes Yes Phil Abatelli LI dares fly Helicopter special Helicopter ra dios Heres Phil Baron 20 Kraft Sport 5-channel rig eases pain using Ace RC Christy Mixer mix throttle tail rotor Theres information column short distance away Thats about change because people learning fly day since better iiiachines on-board stabilizers available today make Helicopter flying slightly difficult stiff-wing airplane flying simple spring may provide answer need use throttle has very low friction could also use ball-bearing coreless-motor throttle servo Such throttles servos can rather easily fitted spring working OFF direction Once battery voltaee removed nrino crni nvernnwer servo coreless-motor servos offer almost no resistance power oIl engine will stop dont know what constantly running against spring load will servo seems reasonable expect some reduction useful life Only time some tests will tell whether such reduction significant Would believe shortly after finishing months column got word World Engines about new OS Helicopter throttle Part No 18909 60 chopper engine works just like details yet like availability price know throttle barrel rides ball bearings has idle-return spring course used Servo Gard see next paragraph can protect against throttle linkage failure broken wire servo ball bearings reduce frictionand youd still have use coreless-motor servo get rid mechanical resistance dead servo equal importance fact new throttle optimized mid-range response big plus Helicopters since much Continued page 125 January 198329 Above Modified ervo uara inssaiiaiion proviae positive engine shutdown event loss control cause Parts required Servo Gard Y-harness switch harness 250 mAh orSOO mAh battery pack modification consists removing Red wire plug pigtail Servo Gardto isolate battery packs Below Figure 1 depicts typical control-stickto-servoresponse transfer function linear RC system Figure 2 shows transferfunction results adding linear gyro servothe net servo arm response reduced dealt lengthening servo arm Figure 3 shows transfer function results Kraft Super Gyro used servothe gyros influence diminishes stick motion increases thereby restoring net response existed Super Gyro release tab too near TE could make some models tail-heavy pod attached rubberbands nylon bolts can used Install blocks bottom wing curved strip ailerons add blocks allow space aileron throw Follow photo sequence packing Test release over bed Since chutist exits plane about 450 should hold nose pod up 450 simulation hold pod level Since no slipstream chutist will exit straight down may damage fabric edge tube actual flight exit will smooth silk Work out malfunctions before trying model choose test chute building pack chute Launch chute already open Select calm day can interpret what happening should able complete full 3600 turn about 100 feet less Two things will make turns slow too little weight TE deflected enough turns chutist underweight will float turn slowly fail penetrate headwind best chutist can hold its ground position 10 mph wind turns too fast straight flight too tricky reduce weight lengthen steering lines first real jump choose calm day Spotting jump point takes practice amount wind problem becomes difficult Release about 300 feet upwind plane about 450 elevation Pull transmitter sticks back immediately release hold sticks down will increase strain servos chute opens Try have arms up position opens occurs about 15 feet behind model best have model ttle sure model choose has stab chutist will clear Also beware antenna wires counter balances stab other items could snag chute lines Stay off controls first Like wing chute will show up warps its glide Adjust lines overcome test steering pulling control stick direction want chutist going overhead turn wind try hold position chutist dropping front turn downwind increase speed toward making dead-stick landing Hitting target takes practice chutist rolls landing lines tangled study carefully usually takes two moves straighten out Ive hung Chris over car antenna over bee nest Lets hope landings will good ones have much fun learning jump weve 9 STUN LKi 4/C MODEL SPONSORED BY REDWOOD MODELERS MARCH 4-51983 EL RANCHO-TROPICANA SANTA ROSA CALIF SHOW HOURS SAT 10-6 SUN 10-4 EUAA REGISTRATION 9am TO 2 pm SATURDAY DEMONSTRATIONS MANUFACTURERS SPLAYS RETAIL WELCOME RW#S LATEST R/C ENGINES- KITS AccESSoRIES-TOOLS AUCTI ON Ip SUNtY-BRINGALLvUR OLD STUPPJ WDS TO 3rd PLACE ALL CATAGORIES OFF RAMP ARDS BANQUET DINNER 730 pun SAT ADMISSION $2OOUNDER 12 FREE S F SO MILES Radio Technique/Myers Continued page 29 flying done part-throttle See going help more people get Heli copters Another possibility exists Servo Gard manufactured RF Enterprises 106 North Main Street Arlington OH 45814 @ $3795 postpaid can several things 1 Shut throttle down preset value flight pack battery voltage drops below some preset number about 46 VDCyou can set throttle shutdown point value lets chopper descend comfortable rate still under control other control channels 2 Shut down throttle same point described previous item after loss control pulses receiverifthe rest ofthe system actually functioning properly can bring engine speed up again pulses resume Now two fine battery wire breaks Servo Gard cant anything can fixed minor modifica tion addition standby battery pack see sketch 3 modifications total primary battery failure will still cause Throttle servo run preset value chopper will descend no other controls func tioning crash Sure maybe severe totally-out-of-control situation think descent under power somewhat less likely destroy Helicopter would total stoppage engine depends hits wherever has superior flyaway whatever would follow after total battery system failure Having warning shutdown occur before battery exhaus tion makes system unflyable strikes DOUG BOUCHER 506 EL DORADO CT SANTA ROSACAL 95401 107-528-0264 or 107-539-3373 off cant ship until get ur order Choose design red R black B royal blue fD sky blue 5 caps fits Only $6 postpaid 4 $20 Christen Eagle BCE Corsair BF4Fortress B17 Lightning B38Liberator B24 Warhawk B40Mitchell BZS Mustang B51Superfortress B29 Spitfire BSPPhantom BP4 Sabre B86Tomcat B14 Dozens catalog send SASE Send check money order FIightIine Shirts Etc Department MA 1781 Johnmark Circle Grants Pass OR 97526 Name Address City State ZipDesignCap Color January 1983 125 III B7ivht4 lb 6 oz ignition liIler bearing flywheel Ball bearing rear Hemi-head chamber Schneurle ported 2 pc con rodbearings Chrome plated cylinder Magnesium case Balanced crank Pyramid reed intake Built-in choke Height 725 LowerWidth Shaft center Pricewidest point 30 Total Width 525 $259Mounting plate prop 00 See local hobby shop Hell order stock CONTEMPO HOBBY PRODUCTS 11611 CANTARA ST H HOLLYWOOD CA 91605 division Contemoo Enterorises being worthwhile plus Will buy use Youre still mercy RC interference always Rick Williams RF Enterprises tells hes working Watch column fuLure developments attention matters safety Give thought SR Batteries Box 287 Bellport NY 11713 SR batteries really have intemal connections welded place cut open check see photo Helicopters vi brate hard batteries need extra safety features can get packs give strain-relief 1oops intercell straps photo last months column flexible intercell adhesive polyolefin packaging Im gradually shifting battery packs SR Batteries No gyro another useful gadget otthe photos shows Phil Abatelli Kraft Sport radio Baron 20 Helicopter Baron 20 Circus Hobbies collective-pitchcontrolled machine such can flown either four five servos However no mechanical tail rotor compensation provided Therefore wish fly Baron 20 similar machine usual RC airplane radio either lot rudder flying find another way Phil used Christy Mixer 26K1 1 Unidirectional $2995 Ace RC Inc mix Throttle Rudder get necessary compensation Phil used 50/50 Matched Performance System TOP PERFORMANCE K&B ENGINES Airplane 4 Marine K&B FUELSK&B GLOW PLUGS 7 Bleeds4 choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micrs-Ballsons FILLER K&B SUPER POSY RESIN K&B SUPER POSY THINNER K&B SUPER POSY PRIMER K&B SUPER POSY PAINT K&B MIXING CUPS 5. provided Ace RC made final ad justments finding best position tailrotor bellcrank sketch shows electrical connections used See dont have buy special Helicopter radio dont want Phil uses basic Kraft Sport five-channel Kraft Super Gyro gyros fight against attempts turn aircraft leads lengthen arm tail rotor servo and/or shorten control hom doing able retain full control authority another way however Kraft Super Gyro uses What happens leave trim control stick centered Super Gyro has full authority displace control stick gyro influence reduced electronically inside gyros amplifier get full control throw youre alone works great fact used Baron 20 XPO Aces Curve No2 Rudder control like feel better obtained Watson Stabilizer though Watson much quicker respond Kraft Super Gyro want control get Watson Stabilizer get constant stabilized rate yawing proportional stick deflection Neither way better Theyre just different Beginners prefer Watson Stabil izer effect So using Helicopter mobile camera platform George M Mters 70 Froehlich Farm Rd Hicksville NY 11801 LS F Pruss Continued page 33 event task simple run yet formidable its challenge Simply explained flier launched first flew quarter mile upwind distance easily seen flier still launch area Signalmen flagged quartermile turn flier flew back over launch area proceeded quarter mile downwindall course lift Again signal flier turned flew back launch areathereby covering mile flight ever having walk away launch spot task against clock Distance task also Speed Yet-without lift thermal activity task couldnt completed Buck Faure won year true flavor LSF Tournaments persisted 1 26 Model Aviation p IN oi uu FOR vmun u New 22 CDl QUADRA $10495 Reg 22 QUADRA $5496 Belsighelle Flywheel *11496 Reg 22 QUADRA POWER ASSEMBLY ONLY96496 QUADRA REPAIR$1000 plus pert PbW RADIAL ENGINES Fleet$2296 JIm Mess ERCOUPE PLANS $2396 KIT $22996 JIm Meeeer TOMAHAWKPLANS $2296 KIT $24996 BALSA 6ASS WOOD elI eieel 39% OFF Conce C FLEETKIT $17996 FG COWL $1996 QUAD4A fuel tenke160 $696 22 oz *796 V VICKERS LEWIS MACHINE GUN KITS$1496 ALL CECONITE PRODUCTS19% OFF PLANS SUPER STEARMAN IGod$reyl$2800 STARDUSTER TOO V IBrIsIghellel$2996 54 seele J3 CUB lnelltz FLEET IConeeptl$2996 VOLKSPLANE 54 IChlcken Cherliel$2296 FLY BABY $1996 SE-5 IRsusehl $2496 COCKPIT KITS Tomahewk MU1 Spitfire $2196 Ercoupe $1996 Steermen $2096 Citabrie $2496 j2 Cub $1996 ME-lOB $2150 Fleet $2096 FIBERGLASS ARROW SHAFTS 6116x 32 1g6I$1000 24-Hour ~.. Add S250 postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 106 Valley View Dr Allegany NY 14706 Heres SR battery Cut open prove internal Connections actually Welded Posi hive negative plates offset about 050 before rolled Cylinder sharp-edged Channel IS pressed ends plates Weldedproviding four connections per turn Channel turn Welded end cap SR Batteries Inc Box 287 Bellport NY 11713 l4l -ID ENG LANDING GEAR FOR BIGGIES Custum hilt aircraft aluminum t ynur spucs.nxtra strung lightumight includus EXItS $2250 up 0 & 0 ENGINEERING 305 6371 SW 2nd St gig-oeiiMargata Fl 33063
Edition: Model Aviation - 1983/01
Page Numbers: 28, 29, 125, 126
Radio Technique George M Myers USING new frequencies Please under stand am writing September 1982 anticnation ofan FCC report order assign ing us long-needed new channels follow ing manufacturers have made known wil lingness convert existing equipment use new channels listed below Manufacturer Conversion Service Airtronics Exchange crystals retune* Circus Hobbies Exchange crystals retune* Futaba Exchange crystals retune* World Engines Exchange crystals retune* Kraft Exchange modulesS30 *Cost SI 0 Probably limited-ti offer frequencies AMA suggests Airplanes Only 7203 7255 7259726372677271727572797283 7287 and 7291 also recommended fliers 7564 have two sets myself get off Either convert set other 75 MHz frequencies use boat car con vert 72 MHz Airplane Only frequencies listed above dont have make move right away Youve got five years until FCC rules off permanently Convening old wide-band receiver doesnt Left George mixing photography Helicopters time Larry Sribniks Kodak disc camera housed padded cell attached Georges Heliboy case fabricated alumuium lithograph ers sheet bolted copter frame shield RF interference cameras integral electric film-advance motor viewport camera lens UV filterglued box electric eye looks through piece lucite tail boom brace has covered black tape anticipating itwould field view An Airtronics Micro servo worked shutter release Starting upper left corner photo montage B&W Kodacolor Disc negative below working clockwise see some aerial photos disc camera George R flies chopper Larry Sribnik IL takes pictures flipping Gear switch transmitter Larry also took picture Heliboy installation scenes beach/pit/spec tator area atthe Suffolk Wings 3rd Annual Seaplane Contest held East Islip Town Beach Lake Ronkonkoma NY October 3 1982 Fun-Fli contest features Sinkthe Bismarckan event uses large model ship target bomb drop Winners Lou Schwab Greg Cardillo Ira Jersey Bob Brassel andTony Larardera Heliboys tailboom brace tail skid tip visible photos make narrow-band unit Youll still have buy new narrow-band receiver sometime during next eight years Message received understood safety-of-flight gadget 1 first started thinking idea time Ive seen Helicopter engine stop flight machine crashed earth near-vertical parabolic arc Most Helicopter flying Ive done witnessed takes place altitudes 50 feet less simply doesnt leave time space enough autorotation save machine other hand tank Heliboy good about half-hour running forward flight takes place part throttle about 50mph battery wire should break its possible machine could fly away wide arc climbing fuel burns off come earth 20 miles away need on-board device will shut down engine following reasons Loss on-board battery power radio 2 Loss signal transmitter 3 Severe RF interference lasts couple seconds think 5sec delay would adeauate Helicopter fliers acutely aware damage main rotor blades can inflict Several have shown stitched scars arms legs far stitches required required number seems six Anyhow being aware risk practically everyone keeps far people houses roads no stays far enough away account fly-a ways Ive heard tales people trying down runaway machines throwing useless transmitter articles clothing main rotor blades far can throw yourjacket fast can run pulling off trousers has better way Perhaps reason havent heard much about flyaway Helicopters traveling great dis tances about 95% Helicopter flying has hovering done low altitudes out-of-control situations resulted crashes Yes Phil Abatelli LI dares fly Helicopter special Helicopter ra dios Heres Phil Baron 20 Kraft Sport 5-channel rig eases pain using Ace RC Christy Mixer mix throttle tail rotor Theres information column short distance away Thats about change because people learning fly day since better iiiachines on-board stabilizers available today make Helicopter flying slightly difficult stiff-wing airplane flying simple spring may provide answer need use throttle has very low friction could also use ball-bearing coreless-motor throttle servo Such throttles servos can rather easily fitted spring working OFF direction Once battery voltaee removed nrino crni nvernnwer servo coreless-motor servos offer almost no resistance power oIl engine will stop dont know what constantly running against spring load will servo seems reasonable expect some reduction useful life Only time some tests will tell whether such reduction significant Would believe shortly after finishing months column got word World Engines about new OS Helicopter throttle Part No 18909 60 chopper engine works just like details yet like availability price know throttle barrel rides ball bearings has idle-return spring course used Servo Gard see next paragraph can protect against throttle linkage failure broken wire servo ball bearings reduce frictionand youd still have use coreless-motor servo get rid mechanical resistance dead servo equal importance fact new throttle optimized mid-range response big plus Helicopters since much Continued page 125 January 198329 Above Modified ervo uara inssaiiaiion proviae positive engine shutdown event loss control cause Parts required Servo Gard Y-harness switch harness 250 mAh orSOO mAh battery pack modification consists removing Red wire plug pigtail Servo Gardto isolate battery packs Below Figure 1 depicts typical control-stickto-servoresponse transfer function linear RC system Figure 2 shows transferfunction results adding linear gyro servothe net servo arm response reduced dealt lengthening servo arm Figure 3 shows transfer function results Kraft Super Gyro used servothe gyros influence diminishes stick motion increases thereby restoring net response existed Super Gyro release tab too near TE could make some models tail-heavy pod attached rubberbands nylon bolts can used Install blocks bottom wing curved strip ailerons add blocks allow space aileron throw Follow photo sequence packing Test release over bed Since chutist exits plane about 450 should hold nose pod up 450 simulation hold pod level Since no slipstream chutist will exit straight down may damage fabric edge tube actual flight exit will smooth silk Work out malfunctions before trying model choose test chute building pack chute Launch chute already open Select calm day can interpret what happening should able complete full 3600 turn about 100 feet less Two things will make turns slow too little weight TE deflected enough turns chutist underweight will float turn slowly fail penetrate headwind best chutist can hold its ground position 10 mph wind turns too fast straight flight too tricky reduce weight lengthen steering lines first real jump choose calm day Spotting jump point takes practice amount wind problem becomes difficult Release about 300 feet upwind plane about 450 elevation Pull transmitter sticks back immediately release hold sticks down will increase strain servos chute opens Try have arms up position opens occurs about 15 feet behind model best have model ttle sure model choose has stab chutist will clear Also beware antenna wires counter balances stab other items could snag chute lines Stay off controls first Like wing chute will show up warps its glide Adjust lines overcome test steering pulling control stick direction want chutist going overhead turn wind try hold position chutist dropping front turn downwind increase speed toward making dead-stick landing Hitting target takes practice chutist rolls landing lines tangled study carefully usually takes two moves straighten out Ive hung Chris over car antenna over bee nest Lets hope landings will good ones have much fun learning jump weve 9 STUN LKi 4/C MODEL SPONSORED BY REDWOOD MODELERS MARCH 4-51983 EL RANCHO-TROPICANA SANTA ROSA CALIF SHOW HOURS SAT 10-6 SUN 10-4 EUAA REGISTRATION 9am TO 2 pm SATURDAY DEMONSTRATIONS MANUFACTURERS SPLAYS RETAIL WELCOME RW#S LATEST R/C ENGINES- KITS AccESSoRIES-TOOLS AUCTI ON Ip SUNtY-BRINGALLvUR OLD STUPPJ WDS TO 3rd PLACE ALL CATAGORIES OFF RAMP ARDS BANQUET DINNER 730 pun SAT ADMISSION $2OOUNDER 12 FREE S F SO MILES Radio Technique/Myers Continued page 29 flying done part-throttle See going help more people get Heli copters Another possibility exists Servo Gard manufactured RF Enterprises 106 North Main Street Arlington OH 45814 @ $3795 postpaid can several things 1 Shut throttle down preset value flight pack battery voltage drops below some preset number about 46 VDCyou can set throttle shutdown point value lets chopper descend comfortable rate still under control other control channels 2 Shut down throttle same point described previous item after loss control pulses receiverifthe rest ofthe system actually functioning properly can bring engine speed up again pulses resume Now two fine battery wire breaks Servo Gard cant anything can fixed minor modifica tion addition standby battery pack see sketch 3 modifications total primary battery failure will still cause Throttle servo run preset value chopper will descend no other controls func tioning crash Sure maybe severe totally-out-of-control situation think descent under power somewhat less likely destroy Helicopter would total stoppage engine depends hits wherever has superior flyaway whatever would follow after total battery system failure Having warning shutdown occur before battery exhaus tion makes system unflyable strikes DOUG BOUCHER 506 EL DORADO CT SANTA ROSACAL 95401 107-528-0264 or 107-539-3373 off cant ship until get ur order Choose design red R black B royal blue fD sky blue 5 caps fits Only $6 postpaid 4 $20 Christen Eagle BCE Corsair BF4Fortress B17 Lightning B38Liberator B24 Warhawk B40Mitchell BZS Mustang B51Superfortress B29 Spitfire BSPPhantom BP4 Sabre B86Tomcat B14 Dozens catalog send SASE Send check money order FIightIine Shirts Etc Department MA 1781 Johnmark Circle Grants Pass OR 97526 Name Address City State ZipDesignCap Color January 1983 125 III B7ivht4 lb 6 oz ignition liIler bearing flywheel Ball bearing rear Hemi-head chamber Schneurle ported 2 pc con rodbearings Chrome plated cylinder Magnesium case Balanced crank Pyramid reed intake Built-in choke Height 725 LowerWidth Shaft center Pricewidest point 30 Total Width 525 $259Mounting plate prop 00 See local hobby shop Hell order stock CONTEMPO HOBBY PRODUCTS 11611 CANTARA ST H HOLLYWOOD CA 91605 division Contemoo Enterorises being worthwhile plus Will buy use Youre still mercy RC interference always Rick Williams RF Enterprises tells hes working Watch column fuLure developments attention matters safety Give thought SR Batteries Box 287 Bellport NY 11713 SR batteries really have intemal connections welded place cut open check see photo Helicopters vi brate hard batteries need extra safety features can get packs give strain-relief 1oops intercell straps photo last months column flexible intercell adhesive polyolefin packaging Im gradually shifting battery packs SR Batteries No gyro another useful gadget otthe photos shows Phil Abatelli Kraft Sport radio Baron 20 Helicopter Baron 20 Circus Hobbies collective-pitchcontrolled machine such can flown either four five servos However no mechanical tail rotor compensation provided Therefore wish fly Baron 20 similar machine usual RC airplane radio either lot rudder flying find another way Phil used Christy Mixer 26K1 1 Unidirectional $2995 Ace RC Inc mix Throttle Rudder get necessary compensation Phil used 50/50 Matched Performance System TOP PERFORMANCE K&B ENGINES Airplane 4 Marine K&B FUELSK&B GLOW PLUGS 7 Bleeds4 choices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micrs-Ballsons FILLER K&B SUPER POSY RESIN K&B SUPER POSY THINNER K&B SUPER POSY PRIMER K&B SUPER POSY PAINT K&B MIXING CUPS 5. provided Ace RC made final ad justments finding best position tailrotor bellcrank sketch shows electrical connections used See dont have buy special Helicopter radio dont want Phil uses basic Kraft Sport five-channel Kraft Super Gyro gyros fight against attempts turn aircraft leads lengthen arm tail rotor servo and/or shorten control hom doing able retain full control authority another way however Kraft Super Gyro uses What happens leave trim control stick centered Super Gyro has full authority displace control stick gyro influence reduced electronically inside gyros amplifier get full control throw youre alone works great fact used Baron 20 XPO Aces Curve No2 Rudder control like feel better obtained Watson Stabilizer though Watson much quicker respond Kraft Super Gyro want control get Watson Stabilizer get constant stabilized rate yawing proportional stick deflection Neither way better Theyre just different Beginners prefer Watson Stabil izer effect So using Helicopter mobile camera platform George M Mters 70 Froehlich Farm Rd Hicksville NY 11801 LS F Pruss Continued page 33 event task simple run yet formidable its challenge Simply explained flier launched first flew quarter mile upwind distance easily seen flier still launch area Signalmen flagged quartermile turn flier flew back over launch area proceeded quarter mile downwindall course lift Again signal flier turned flew back launch areathereby covering mile flight ever having walk away launch spot task against clock Distance task also Speed Yet-without lift thermal activity task couldnt completed Buck Faure won year true flavor LSF Tournaments persisted 1 26 Model Aviation p IN oi uu FOR vmun u New 22 CDl QUADRA $10495 Reg 22 QUADRA $5496 Belsighelle Flywheel *11496 Reg 22 QUADRA POWER ASSEMBLY ONLY96496 QUADRA REPAIR$1000 plus pert PbW RADIAL ENGINES Fleet$2296 JIm Mess ERCOUPE PLANS $2396 KIT $22996 JIm Meeeer TOMAHAWKPLANS $2296 KIT $24996 BALSA 6ASS WOOD elI eieel 39% OFF Conce C FLEETKIT $17996 FG COWL $1996 QUAD4A fuel tenke160 $696 22 oz *796 V VICKERS LEWIS MACHINE GUN KITS$1496 ALL CECONITE PRODUCTS19% OFF PLANS SUPER STEARMAN IGod$reyl$2800 STARDUSTER TOO V IBrIsIghellel$2996 54 seele J3 CUB lnelltz FLEET IConeeptl$2996 VOLKSPLANE 54 IChlcken Cherliel$2296 FLY BABY $1996 SE-5 IRsusehl $2496 COCKPIT KITS Tomahewk MU1 Spitfire $2196 Ercoupe $1996 Steermen $2096 Citabrie $2496 j2 Cub $1996 ME-lOB $2150 Fleet $2096 FIBERGLASS ARROW SHAFTS 6116x 32 1g6I$1000 24-Hour ~.. Add S250 postage Send Bank Check Money Order JIM MESSERS QUALITY MODEL PRODUCTS 106 Valley View Dr Allegany NY 14706 Heres SR battery Cut open prove internal Connections actually Welded Posi hive negative plates offset about 050 before rolled Cylinder sharp-edged Channel IS pressed ends plates Weldedproviding four connections per turn Channel turn Welded end cap SR Batteries Inc Box 287 Bellport NY 11713 l4l -ID ENG LANDING GEAR FOR BIGGIES Custum hilt aircraft aluminum t ynur spucs.nxtra strung lightumight includus EXItS $2250 up 0 & 0 ENGINEERING 305 6371 SW 2nd St gig-oeiiMargata Fl 33063