Radio Control Helicopters Dave Chesney THE TIME catch up building projects approaches write us below Mason-Dixon line south west have force ourselves build because good flying weather seems go on youre like long machine flyable building projects will gather dust work bench awaiting late returns flying field us would rather flying good weather bad building writing Today its raining 5X8 1 project complete know few readers may curious about flies left 5X8 1 October paint hardly dried fuselage casings radio linkages installed radio pushrod installation simple process fact like arrangement better Heliboy installation Things slightly easier get adjustment maintenance photo shows three four servos battery switch locations detail fourth servo cut-out special cut-out receiver receiver moved its recom mended location opposite battery make room Watson sensor Remember comment about careful planning radio instal lation hope blew regard mounting sensor Otherwise its perfect plans mount sensor opposite battery location receiver would nor mally mount did take account additional foam required surround unit foam required isolate sensor vibration expected though instructions Watson Industries specifically caution user So after first engine run knew installation would have change its just well since SX probably would show true potential gyro sensor anyway may try alternate first instal lation recess sensor similar manner battery installation additional foam can used plenty room experi ment additional nose weight can easily tolerated SX design Since SX sports additional rear fuselage structure well tank fuel well aft main shaft chances will finish tailheavy case four PLS 14 II servos 550 mAh battery pack Ace receiver Watson sensor added just enough weight balance main shaft Three ounces weight added nose bring CO slightly ahead rotor shaft According Walt Schoonard should able lift 5X8 1 flybar rear landing skids should clear ground inch before front landing skids clear equip ment weights place SX lifted clear about flew CO will add nose weight near future completed 5X8 1 special muffler number 990 adapter fit OS Max 60 FSR Although another type muffler could have used chose Schluter muffler rewarded very quiet machinemuch quieter mufflers used past first start-up SX would have shocker warned whine gears starter engaged whining normal since engine shaft coupled starter shaft gears rather being directly coupled Heliboy quiet muffler added illusion something being wrong Continued page 121 48 Model Aviation SX81 radio installation Watson sensor left mounts large cutout servos have eyelets through rubber grommets keep compressing too much way youre ham Chesney monitors 14343 MHz 0100 GMT Thursdays Yaesu setup background Dave puts SX8I through its paces Very stable ship Note safety circle markings pavement Uob WIlilson 0 uklahoma says nice tnlngs about uaves uonT nave snot oi uave 1wIsLttu Bobs armall modelers alike Bob rumored talking himself building Cricket Klotz oil no evidence excessive heating Larger-than-normal props used fuel economy ran roughly three times longer per ounce over glow fuel have experienced no radio interference Pro-Line Cannon units Although limited field work units precludes final recommendation very impressed thus far anticipate unit may find consid erable popularity Old-Timer fliers well sport Scale applications SAM ignition rules formulated no consideration given possibility automobile-type ignition could adapted model aircraft use As consequence until rules amended CHS ignition unit truly legal SAM events However unit certainly desirable sport flying surely rules will altered soon unit expensive its use will provide potential fliers chance experience sound ignition-powered OldTimers using modern engine parts readily available An equally attrac tive factor markedly lower fuel costs ability swing large props Send $100 large SASE above address further information Dee B Mathews 506 South Walnut Greensburg KS 67054 RC Helicopters/Chesney Continued page 48 During first hover flights decided problem fuel draw No forward flights day engine began running lean after half tank contacted Schluter USA advice found Walt similar problems recommended reducing area carb Max since running muffler pressure recommended Max instructions 7B carb chose install Robart Super Pumper/Auto Mix decision install pumper did come easily since really didnt like idea messing good ol four-year-old Max 60 Glad did though because Robart unit worked beautifully no adjustment right down last drop get few extra dollars may get new Max 61 now old Max 60 Robart Pumper/Auto Mix does nice job Engine fuel draw problems out way did some hovering Glenn Willison handled camera blade tracking chores flights 5X8 1 very smooth rather hard compare Heliboy guess yaw axis primary difference SX very good tail commands tail rotor thrust line kicked up level main rotor lateral drift negligible Tail rotor turns require littleif attention cyclic Heli boy will soon sport kick-up tail assembly Mod kit available Schluter USA because am convinced will improve Heliboy similarly Forward flight 5X8 first impressive Heliboy Again different Perhaps maneuvers suffer due adli tional weight SX required different technique loop roll technique best described fly-through rather roughand-tumble stick shoving Heliboy has tolerated As have practiced have begun appreciate flight characteristics SXS 1 now can reasonable job aerobatics machine better pilot SX fast forward flight smooth does tend pitch up upon exiting accelerated maneuvers requires technique Iat NORTHERN CALIFORNIAS LARGESTU SCOUNT HOBBY SHOPI I well FUEL yoU New high film strength lubricantU increased power engine lifeI Highest quality ingredients I II II II II II II II II II II IHOURS Monday thru wednesday Y3U-O30 Thursday & Friday 93O-800I LSaturday930-600Sunday 0000 ebruary 1982 121 SUPER-DELUXE SUPER-SIZEb 108 span AIDfflJIUE flT4fl Balsa Ply Foam Wing FIflAI1ILUJ II Fiberglass Cowl Chin Piece Two Giant Plan Sheets l Landing Gear 5/32 Pre Bent tail wheel assy Aileron Torque Rods Pre-made Brass Steel One-piece Wing All-up Weight 28-32 lbs Parts Band Sawed Needed Super Deluxe Kit $30000 FI RIC SUPPLY Shipping pre-paid Payment order9180 HaIl Road LakeHand FL 3305 ida Resident Add 4% Sales TaxPhone 813 858-2658 R/CIITMI- P7-F TIGERCAT Send 500 aiRIOg 216 499-5323 RC Kits Mfg UOH 44721 fiOzrfliddO PROPELLERS Made P0 yeste bo color Go GRISH No 1 propeller True helical pitch airfoil win-power Sizes pitches styles needs AT YOUR DEALER 2 Blade Tractor 53each 545354Mc 6364Mc 747678Mc 848688c 949697 98104106Mc 114116118SI 124125126SuB 2 Blade Pusher 5/ 3 544 6364USc 86Mc 96106Si 3 Blade Tractor 53 6364 flOe 3 Blade Pusher 63Mc Metallic Aluminum Color Tractor 717651 8688S1Z 96 1061045130 P,sher06sim GRISH LARGE WOOD PROPELLERS HARDWOOD too hardr minimizes costly plane engine damage True pitch airfoil fully finished balanced ready coating 318 BOREALL SIZES IN18 $7 6 8 & 10 PITCH 2O 8 27 10 24 13 NEWSIZE IN B&1OPITCH 26 $16 inBROS Ouuwru ST JOHN INDIANA 46373 avoid pitch-up seems pronounced Heliboy less Revolution 60 Rigid Rotor flybarless Helicopter flew few years back pitch-up charac teristic rigid rotor heads believe need bit nose weight well other comment regarding SX tail rotor assembly should made Because tail drive flex cable certain tighten set screws cable firmly would recommend Blue Loctite secure set screws since may loosen due give flex shaft have made two successful landings tail rotor its sure easier landing everything work ing As Helicopters checking nuts bolts will pay otT reliability Overall am impressed bit practice may enter upcoming contest now Im enjoying playing tag trees local flying site As Watson sensor apologize now must either re-install SX another machine give attention following instructions Remember size part rolls off workbench always inversely proportional depth shag rug See next month Dave Chesney Rt 9 Box 621A Greensboro NC 27409 FF Duration/Meuser Continued page 53 14 x22 Erv nobody checks limited rubber weight reduces flight time altitude both reducing chances hang-up wing-plus-tail area limit presents processing hassle perhaps simple maximum-chord limit something take care biplanes tandems would serve purpose well processing easier Erv has thought out pretty well plans build some models specs see works out thing seems certain rules will changed probably directions Erv has proposed simply matter time seems far better give serious attention Ervs proposal time comes well-considered rules become adopted rather some other countrys perhaps less-desirable rules last time said something like respect FAI Outdoor rules got accused everything senility consorting enemy hope dont have go around passing out told cards Editors note long letter En Rodemsky subject published January issue MAsee Competition News pp 95 96 also tells send comments RMcM NFFS lives keeps dying operating table getting revived seems During 1981 112 pages Free Flight NFFS Digest got sent printer about par good year although quite got published because slow start beginning year Most issues have pretty decent although have few glitches like getting Nats Unofficial Events announcements issue came out two weeks after Nats keepingthe list ofNFFS officers up-todate printing out-of-date membership fees Membership-plus-subscription fees increased late 1981 follows hope its right time US residents age 19 over non-US residents age 1 year $1500 2 years $2650 122 Model Aviation MAXI-ACRO TRAINER W SCALE ACRO TRAINER 60 SIZE ACRO TRAINER 40 SIZE SUPER HUNTER 60 SIZE DUCTED FAN F-106 DELTA DARTj 3 RIGHT HAND TRACTOR 3-FUNCTION ACCUETACH LCD Tachometer w dual scale capability lOX bOX @ Digital Voltmeter load /5 && checking/cycling TX/RX battery combosACcU-1ACMI torquick- harging operation 79 prepaid NorSend check money order C no C 0 D s alq~ Calif residents AVIONKSS add 6% t ax P0 Box 70956 Sunnyvale CA 94086 $ FORMULA 1 HIGH PERFORMANCE PROPELLERS D 1W AIRSCREW EACH PROPELLER HAND BALANCED Herd Eastern Maple4 Accurate airfoil pitch SssX6SR assX7IA ~eC Additional propellers available uoxe CUSTOM DESIGN UPON REQUEST DIRECT SALES ONLYeraa CostaR itaoaIoR 5R34 CRYSTAL COURT RSD FOR COD oAs SANTA ROSA S4RA CA RES ADO R% TAR CROiiE iTO7i 52RRRR4
Edition: Model Aviation - 1982/02
Page Numbers: 48, 121, 122
Radio Control Helicopters Dave Chesney THE TIME catch up building projects approaches write us below Mason-Dixon line south west have force ourselves build because good flying weather seems go on youre like long machine flyable building projects will gather dust work bench awaiting late returns flying field us would rather flying good weather bad building writing Today its raining 5X8 1 project complete know few readers may curious about flies left 5X8 1 October paint hardly dried fuselage casings radio linkages installed radio pushrod installation simple process fact like arrangement better Heliboy installation Things slightly easier get adjustment maintenance photo shows three four servos battery switch locations detail fourth servo cut-out special cut-out receiver receiver moved its recom mended location opposite battery make room Watson sensor Remember comment about careful planning radio instal lation hope blew regard mounting sensor Otherwise its perfect plans mount sensor opposite battery location receiver would nor mally mount did take account additional foam required surround unit foam required isolate sensor vibration expected though instructions Watson Industries specifically caution user So after first engine run knew installation would have change its just well since SX probably would show true potential gyro sensor anyway may try alternate first instal lation recess sensor similar manner battery installation additional foam can used plenty room experi ment additional nose weight can easily tolerated SX design Since SX sports additional rear fuselage structure well tank fuel well aft main shaft chances will finish tailheavy case four PLS 14 II servos 550 mAh battery pack Ace receiver Watson sensor added just enough weight balance main shaft Three ounces weight added nose bring CO slightly ahead rotor shaft According Walt Schoonard should able lift 5X8 1 flybar rear landing skids should clear ground inch before front landing skids clear equip ment weights place SX lifted clear about flew CO will add nose weight near future completed 5X8 1 special muffler number 990 adapter fit OS Max 60 FSR Although another type muffler could have used chose Schluter muffler rewarded very quiet machinemuch quieter mufflers used past first start-up SX would have shocker warned whine gears starter engaged whining normal since engine shaft coupled starter shaft gears rather being directly coupled Heliboy quiet muffler added illusion something being wrong Continued page 121 48 Model Aviation SX81 radio installation Watson sensor left mounts large cutout servos have eyelets through rubber grommets keep compressing too much way youre ham Chesney monitors 14343 MHz 0100 GMT Thursdays Yaesu setup background Dave puts SX8I through its paces Very stable ship Note safety circle markings pavement Uob WIlilson 0 uklahoma says nice tnlngs about uaves uonT nave snot oi uave 1wIsLttu Bobs armall modelers alike Bob rumored talking himself building Cricket Klotz oil no evidence excessive heating Larger-than-normal props used fuel economy ran roughly three times longer per ounce over glow fuel have experienced no radio interference Pro-Line Cannon units Although limited field work units precludes final recommendation very impressed thus far anticipate unit may find consid erable popularity Old-Timer fliers well sport Scale applications SAM ignition rules formulated no consideration given possibility automobile-type ignition could adapted model aircraft use As consequence until rules amended CHS ignition unit truly legal SAM events However unit certainly desirable sport flying surely rules will altered soon unit expensive its use will provide potential fliers chance experience sound ignition-powered OldTimers using modern engine parts readily available An equally attrac tive factor markedly lower fuel costs ability swing large props Send $100 large SASE above address further information Dee B Mathews 506 South Walnut Greensburg KS 67054 RC Helicopters/Chesney Continued page 48 During first hover flights decided problem fuel draw No forward flights day engine began running lean after half tank contacted Schluter USA advice found Walt similar problems recommended reducing area carb Max since running muffler pressure recommended Max instructions 7B carb chose install Robart Super Pumper/Auto Mix decision install pumper did come easily since really didnt like idea messing good ol four-year-old Max 60 Glad did though because Robart unit worked beautifully no adjustment right down last drop get few extra dollars may get new Max 61 now old Max 60 Robart Pumper/Auto Mix does nice job Engine fuel draw problems out way did some hovering Glenn Willison handled camera blade tracking chores flights 5X8 1 very smooth rather hard compare Heliboy guess yaw axis primary difference SX very good tail commands tail rotor thrust line kicked up level main rotor lateral drift negligible Tail rotor turns require littleif attention cyclic Heli boy will soon sport kick-up tail assembly Mod kit available Schluter USA because am convinced will improve Heliboy similarly Forward flight 5X8 first impressive Heliboy Again different Perhaps maneuvers suffer due adli tional weight SX required different technique loop roll technique best described fly-through rather roughand-tumble stick shoving Heliboy has tolerated As have practiced have begun appreciate flight characteristics SXS 1 now can reasonable job aerobatics machine better pilot SX fast forward flight smooth does tend pitch up upon exiting accelerated maneuvers requires technique Iat NORTHERN CALIFORNIAS LARGESTU SCOUNT HOBBY SHOPI I well FUEL yoU New high film strength lubricantU increased power engine lifeI Highest quality ingredients I II II II II II II II II II II IHOURS Monday thru wednesday Y3U-O30 Thursday & Friday 93O-800I LSaturday930-600Sunday 0000 ebruary 1982 121 SUPER-DELUXE SUPER-SIZEb 108 span AIDfflJIUE flT4fl Balsa Ply Foam Wing FIflAI1ILUJ II Fiberglass Cowl Chin Piece Two Giant Plan Sheets l Landing Gear 5/32 Pre Bent tail wheel assy Aileron Torque Rods Pre-made Brass Steel One-piece Wing All-up Weight 28-32 lbs Parts Band Sawed Needed Super Deluxe Kit $30000 FI RIC SUPPLY Shipping pre-paid Payment order9180 HaIl Road LakeHand FL 3305 ida Resident Add 4% Sales TaxPhone 813 858-2658 R/CIITMI- P7-F TIGERCAT Send 500 aiRIOg 216 499-5323 RC Kits Mfg UOH 44721 fiOzrfliddO PROPELLERS Made P0 yeste bo color Go GRISH No 1 propeller True helical pitch airfoil win-power Sizes pitches styles needs AT YOUR DEALER 2 Blade Tractor 53each 545354Mc 6364Mc 747678Mc 848688c 949697 98104106Mc 114116118SI 124125126SuB 2 Blade Pusher 5/ 3 544 6364USc 86Mc 96106Si 3 Blade Tractor 53 6364 flOe 3 Blade Pusher 63Mc Metallic Aluminum Color Tractor 717651 8688S1Z 96 1061045130 P,sher06sim GRISH LARGE WOOD PROPELLERS HARDWOOD too hardr minimizes costly plane engine damage True pitch airfoil fully finished balanced ready coating 318 BOREALL SIZES IN18 $7 6 8 & 10 PITCH 2O 8 27 10 24 13 NEWSIZE IN B&1OPITCH 26 $16 inBROS Ouuwru ST JOHN INDIANA 46373 avoid pitch-up seems pronounced Heliboy less Revolution 60 Rigid Rotor flybarless Helicopter flew few years back pitch-up charac teristic rigid rotor heads believe need bit nose weight well other comment regarding SX tail rotor assembly should made Because tail drive flex cable certain tighten set screws cable firmly would recommend Blue Loctite secure set screws since may loosen due give flex shaft have made two successful landings tail rotor its sure easier landing everything work ing As Helicopters checking nuts bolts will pay otT reliability Overall am impressed bit practice may enter upcoming contest now Im enjoying playing tag trees local flying site As Watson sensor apologize now must either re-install SX another machine give attention following instructions Remember size part rolls off workbench always inversely proportional depth shag rug See next month Dave Chesney Rt 9 Box 621A Greensboro NC 27409 FF Duration/Meuser Continued page 53 14 x22 Erv nobody checks limited rubber weight reduces flight time altitude both reducing chances hang-up wing-plus-tail area limit presents processing hassle perhaps simple maximum-chord limit something take care biplanes tandems would serve purpose well processing easier Erv has thought out pretty well plans build some models specs see works out thing seems certain rules will changed probably directions Erv has proposed simply matter time seems far better give serious attention Ervs proposal time comes well-considered rules become adopted rather some other countrys perhaps less-desirable rules last time said something like respect FAI Outdoor rules got accused everything senility consorting enemy hope dont have go around passing out told cards Editors note long letter En Rodemsky subject published January issue MAsee Competition News pp 95 96 also tells send comments RMcM NFFS lives keeps dying operating table getting revived seems During 1981 112 pages Free Flight NFFS Digest got sent printer about par good year although quite got published because slow start beginning year Most issues have pretty decent although have few glitches like getting Nats Unofficial Events announcements issue came out two weeks after Nats keepingthe list ofNFFS officers up-todate printing out-of-date membership fees Membership-plus-subscription fees increased late 1981 follows hope its right time US residents age 19 over non-US residents age 1 year $1500 2 years $2650 122 Model Aviation MAXI-ACRO TRAINER W SCALE ACRO TRAINER 60 SIZE ACRO TRAINER 40 SIZE SUPER HUNTER 60 SIZE DUCTED FAN F-106 DELTA DARTj 3 RIGHT HAND TRACTOR 3-FUNCTION ACCUETACH LCD Tachometer w dual scale capability lOX bOX @ Digital Voltmeter load /5 && checking/cycling TX/RX battery combosACcU-1ACMI torquick- harging operation 79 prepaid NorSend check money order C no C 0 D s alq~ Calif residents AVIONKSS add 6% t ax P0 Box 70956 Sunnyvale CA 94086 $ FORMULA 1 HIGH PERFORMANCE PROPELLERS D 1W AIRSCREW EACH PROPELLER HAND BALANCED Herd Eastern Maple4 Accurate airfoil pitch SssX6SR assX7IA ~eC Additional propellers available uoxe CUSTOM DESIGN UPON REQUEST DIRECT SALES ONLYeraa CostaR itaoaIoR 5R34 CRYSTAL COURT RSD FOR COD oAs SANTA ROSA S4RA CA RES ADO R% TAR CROiiE iTO7i 52RRRR4
Edition: Model Aviation - 1982/02
Page Numbers: 48, 121, 122
Radio Control Helicopters Dave Chesney THE TIME catch up building projects approaches write us below Mason-Dixon line south west have force ourselves build because good flying weather seems go on youre like long machine flyable building projects will gather dust work bench awaiting late returns flying field us would rather flying good weather bad building writing Today its raining 5X8 1 project complete know few readers may curious about flies left 5X8 1 October paint hardly dried fuselage casings radio linkages installed radio pushrod installation simple process fact like arrangement better Heliboy installation Things slightly easier get adjustment maintenance photo shows three four servos battery switch locations detail fourth servo cut-out special cut-out receiver receiver moved its recom mended location opposite battery make room Watson sensor Remember comment about careful planning radio instal lation hope blew regard mounting sensor Otherwise its perfect plans mount sensor opposite battery location receiver would nor mally mount did take account additional foam required surround unit foam required isolate sensor vibration expected though instructions Watson Industries specifically caution user So after first engine run knew installation would have change its just well since SX probably would show true potential gyro sensor anyway may try alternate first instal lation recess sensor similar manner battery installation additional foam can used plenty room experi ment additional nose weight can easily tolerated SX design Since SX sports additional rear fuselage structure well tank fuel well aft main shaft chances will finish tailheavy case four PLS 14 II servos 550 mAh battery pack Ace receiver Watson sensor added just enough weight balance main shaft Three ounces weight added nose bring CO slightly ahead rotor shaft According Walt Schoonard should able lift 5X8 1 flybar rear landing skids should clear ground inch before front landing skids clear equip ment weights place SX lifted clear about flew CO will add nose weight near future completed 5X8 1 special muffler number 990 adapter fit OS Max 60 FSR Although another type muffler could have used chose Schluter muffler rewarded very quiet machinemuch quieter mufflers used past first start-up SX would have shocker warned whine gears starter engaged whining normal since engine shaft coupled starter shaft gears rather being directly coupled Heliboy quiet muffler added illusion something being wrong Continued page 121 48 Model Aviation SX81 radio installation Watson sensor left mounts large cutout servos have eyelets through rubber grommets keep compressing too much way youre ham Chesney monitors 14343 MHz 0100 GMT Thursdays Yaesu setup background Dave puts SX8I through its paces Very stable ship Note safety circle markings pavement Uob WIlilson 0 uklahoma says nice tnlngs about uaves uonT nave snot oi uave 1wIsLttu Bobs armall modelers alike Bob rumored talking himself building Cricket Klotz oil no evidence excessive heating Larger-than-normal props used fuel economy ran roughly three times longer per ounce over glow fuel have experienced no radio interference Pro-Line Cannon units Although limited field work units precludes final recommendation very impressed thus far anticipate unit may find consid erable popularity Old-Timer fliers well sport Scale applications SAM ignition rules formulated no consideration given possibility automobile-type ignition could adapted model aircraft use As consequence until rules amended CHS ignition unit truly legal SAM events However unit certainly desirable sport flying surely rules will altered soon unit expensive its use will provide potential fliers chance experience sound ignition-powered OldTimers using modern engine parts readily available An equally attrac tive factor markedly lower fuel costs ability swing large props Send $100 large SASE above address further information Dee B Mathews 506 South Walnut Greensburg KS 67054 RC Helicopters/Chesney Continued page 48 During first hover flights decided problem fuel draw No forward flights day engine began running lean after half tank contacted Schluter USA advice found Walt similar problems recommended reducing area carb Max since running muffler pressure recommended Max instructions 7B carb chose install Robart Super Pumper/Auto Mix decision install pumper did come easily since really didnt like idea messing good ol four-year-old Max 60 Glad did though because Robart unit worked beautifully no adjustment right down last drop get few extra dollars may get new Max 61 now old Max 60 Robart Pumper/Auto Mix does nice job Engine fuel draw problems out way did some hovering Glenn Willison handled camera blade tracking chores flights 5X8 1 very smooth rather hard compare Heliboy guess yaw axis primary difference SX very good tail commands tail rotor thrust line kicked up level main rotor lateral drift negligible Tail rotor turns require littleif attention cyclic Heli boy will soon sport kick-up tail assembly Mod kit available Schluter USA because am convinced will improve Heliboy similarly Forward flight 5X8 first impressive Heliboy Again different Perhaps maneuvers suffer due adli tional weight SX required different technique loop roll technique best described fly-through rather roughand-tumble stick shoving Heliboy has tolerated As have practiced have begun appreciate flight characteristics SXS 1 now can reasonable job aerobatics machine better pilot SX fast forward flight smooth does tend pitch up upon exiting accelerated maneuvers requires technique Iat NORTHERN CALIFORNIAS LARGESTU SCOUNT HOBBY SHOPI I well FUEL yoU New high film strength lubricantU increased power engine lifeI Highest quality ingredients I II II II II II II II II II II IHOURS Monday thru wednesday Y3U-O30 Thursday & Friday 93O-800I LSaturday930-600Sunday 0000 ebruary 1982 121 SUPER-DELUXE SUPER-SIZEb 108 span AIDfflJIUE flT4fl Balsa Ply Foam Wing FIflAI1ILUJ II Fiberglass Cowl Chin Piece Two Giant Plan Sheets l Landing Gear 5/32 Pre Bent tail wheel assy Aileron Torque Rods Pre-made Brass Steel One-piece Wing All-up Weight 28-32 lbs Parts Band Sawed Needed Super Deluxe Kit $30000 FI RIC SUPPLY Shipping pre-paid Payment order9180 HaIl Road LakeHand FL 3305 ida Resident Add 4% Sales TaxPhone 813 858-2658 R/CIITMI- P7-F TIGERCAT Send 500 aiRIOg 216 499-5323 RC Kits Mfg UOH 44721 fiOzrfliddO PROPELLERS Made P0 yeste bo color Go GRISH No 1 propeller True helical pitch airfoil win-power Sizes pitches styles needs AT YOUR DEALER 2 Blade Tractor 53each 545354Mc 6364Mc 747678Mc 848688c 949697 98104106Mc 114116118SI 124125126SuB 2 Blade Pusher 5/ 3 544 6364USc 86Mc 96106Si 3 Blade Tractor 53 6364 flOe 3 Blade Pusher 63Mc Metallic Aluminum Color Tractor 717651 8688S1Z 96 1061045130 P,sher06sim GRISH LARGE WOOD PROPELLERS HARDWOOD too hardr minimizes costly plane engine damage True pitch airfoil fully finished balanced ready coating 318 BOREALL SIZES IN18 $7 6 8 & 10 PITCH 2O 8 27 10 24 13 NEWSIZE IN B&1OPITCH 26 $16 inBROS Ouuwru ST JOHN INDIANA 46373 avoid pitch-up seems pronounced Heliboy less Revolution 60 Rigid Rotor flybarless Helicopter flew few years back pitch-up charac teristic rigid rotor heads believe need bit nose weight well other comment regarding SX tail rotor assembly should made Because tail drive flex cable certain tighten set screws cable firmly would recommend Blue Loctite secure set screws since may loosen due give flex shaft have made two successful landings tail rotor its sure easier landing everything work ing As Helicopters checking nuts bolts will pay otT reliability Overall am impressed bit practice may enter upcoming contest now Im enjoying playing tag trees local flying site As Watson sensor apologize now must either re-install SX another machine give attention following instructions Remember size part rolls off workbench always inversely proportional depth shag rug See next month Dave Chesney Rt 9 Box 621A Greensboro NC 27409 FF Duration/Meuser Continued page 53 14 x22 Erv nobody checks limited rubber weight reduces flight time altitude both reducing chances hang-up wing-plus-tail area limit presents processing hassle perhaps simple maximum-chord limit something take care biplanes tandems would serve purpose well processing easier Erv has thought out pretty well plans build some models specs see works out thing seems certain rules will changed probably directions Erv has proposed simply matter time seems far better give serious attention Ervs proposal time comes well-considered rules become adopted rather some other countrys perhaps less-desirable rules last time said something like respect FAI Outdoor rules got accused everything senility consorting enemy hope dont have go around passing out told cards Editors note long letter En Rodemsky subject published January issue MAsee Competition News pp 95 96 also tells send comments RMcM NFFS lives keeps dying operating table getting revived seems During 1981 112 pages Free Flight NFFS Digest got sent printer about par good year although quite got published because slow start beginning year Most issues have pretty decent although have few glitches like getting Nats Unofficial Events announcements issue came out two weeks after Nats keepingthe list ofNFFS officers up-todate printing out-of-date membership fees Membership-plus-subscription fees increased late 1981 follows hope its right time US residents age 19 over non-US residents age 1 year $1500 2 years $2650 122 Model Aviation MAXI-ACRO TRAINER W SCALE ACRO TRAINER 60 SIZE ACRO TRAINER 40 SIZE SUPER HUNTER 60 SIZE DUCTED FAN F-106 DELTA DARTj 3 RIGHT HAND TRACTOR 3-FUNCTION ACCUETACH LCD Tachometer w dual scale capability lOX bOX @ Digital Voltmeter load /5 && checking/cycling TX/RX battery combosACcU-1ACMI torquick- harging operation 79 prepaid NorSend check money order C no C 0 D s alq~ Calif residents AVIONKSS add 6% t ax P0 Box 70956 Sunnyvale CA 94086 $ FORMULA 1 HIGH PERFORMANCE PROPELLERS D 1W AIRSCREW EACH PROPELLER HAND BALANCED Herd Eastern Maple4 Accurate airfoil pitch SssX6SR assX7IA ~eC Additional propellers available uoxe CUSTOM DESIGN UPON REQUEST DIRECT SALES ONLYeraa CostaR itaoaIoR 5R34 CRYSTAL COURT RSD FOR COD oAs SANTA ROSA S4RA CA RES ADO R% TAR CROiiE iTO7i 52RRRR4