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Letters to the Editor


Edition: Model Aviation - 1977/08
Page Numbers: 4, 5, 52

MIDWEST B/C Models Give choose . theres Midst model almost kind R/C flyer de sires ATTACKER All-molded styrofoam airplane goes gether fast Rugged its great sport plane easy-to-fly advanced trainer Big 48 span powered 19- 35-size engines 4 chan nels Complete hardware package Designed Jim NewmanKit No 134 SUPER CHIPMUNK ARF injection-molded foam 10 19 en gines Wing span 46 Three channels En gine throttle elevator ailerons Four channels Engine throttle elevator ailerons rudder Kit No 126 STR 1K EMASTER Wing span 55 inches Engine sizes 19 40 Foam wing cores balsa covering material sup plied Balsa plywood fuselage die cut Balsa sheet fin stabilizer machine cut fittings hardware formed wire pacts sup plied Designed Jim Newman Kit No 130 nwes PRODUCTS CO M 400 South Indiana St Hobart Indiana 46342 --- letters 3z7 editor SME T letters will carefully considered general interest used Send Model Aviation 815 15th St N W Washington DC 20005 Ace High Give Him Twin Enclosed two photos Ace High Glider modified original plans pulse-rudder-only Picture shows both rudder elevator controls Also re-inforced fuselage tail section weak point glued stab instead using rubberbands made cowl cover two screws mounting also easier access radio installation also built pulse-rudder-only flew quite well altitude could main tained nor level flight Control land ings good always possibility stalls dips de crease altitude necessary spiral down too good wing as it looped control neutralized two controls am using two EK servos glider performance flight characteristics greatly improved Level flight altitude can main tained good turns some stunts can easily made Stalling dips landing eliminated completely excel lent landings can made Using 049 Cox engine fuel tank extension longer flights experienced per formance good added servo weight no problem also excellent performer beginner much easier learn RC less crashes confidence Arthur Oberstaedt AMA 79497 Brighton MI Mr Oberstaedts remarks about Ace High glider equipped rudderonly should construed criticism Actually experience design both rudder-only two servos rudder elevatorsimply point up differences both modes offlying bonus accrues addition ele vator Incidentally proud being senior modelerhe 68 would like say enjoy Model via tion magazine read cover cov er think Model Design section should have multi-engine plans Whether RC control line scale profile doesnt matter prefer control line Multi-engine planes lot fun Leigh Garry AMA 86649 Flushing NY Well keep mind Leigh sched ule rounded out 1977 perhaps well find suitable twin before next sea son Quite afew multi-engined kits exist RCfield advertising various mag azines indicates Murrays Answer April copy Model viation found old friend named own Answer depicted True saw last Bakersfield big meet 1939 Free Flight Murray beat us day am 64 now have missile engineer Apollo Saturn V Retired now going get involved gas models Scotty no longer us han dled kit Answer 1940 under name Topper still Frank H Chaussee Palmdale CA Scotty killed during siege Malta WW II enlisted RCAF early war vic tories credit Spitfire pilot fell victim attacked taking off having shot down four fighters same day Topper kitted Bay Ridge Brooklyn long since out business Sea Without offending good friends United Kingdom thought appro priate forward enclosed article appeared Athens Greece Athens News Sunday 23 January 1977 Salcombe England APRes cue services swung action Sat urday after aircraft reported have crashed sea off Devon County town two survi 4 Model Aviation vors spotted dinghy Salcombe lifeboat Royal Air Force rescue launch Plym outh went out RAF helicop ter called Chivenor north Devon coast found 20-foot wing span model airplane water two fishermen happily floating dinghy Happen have paper flying field 23rd few fliers got good chuckle out article Duwaine L Laib AMA 39296 Lt US Navy Greece Thank just finished reading Keith Gebers ar ticle Shoot Model Movie Film want compliment selec tion Mr Gebers preparation best presentation have ever read magazine basics Movie Making Bradford W Powers San Diego CA Advertisers Take Note realize am late application special Model viat ion magazine subscription am located overseas area Army did receive AMA News until late Friday evening November 5 seems nobody allows consideration people located APO/EPO addresses magazine sub scriptions arrive APO/FPO addresses too late subscribers take advan tage specials offered various sup ply sources same applies maga zines sold newsstands al cases arrive later subscrip tion issues Could Academy possibly suggest various hobby dealers advertising various modeling magazines con sider members military com munity Army Air Force Navy al low 30-day extensions specials ofCon tinued page 52 ATT CONTEST MODELERS offering several items direct basis wholesalers care stock due limited appeal Fox 29 version Combat Special produces about 1 HP @ 21000 RPM 60% nitro e S4495 Fox 40 ase fitted meehan ite piston Faster stock Can fitted carb choice Throttle Model6495 Std Intake Model 495 Stunt 35 ed hardened cyl hard piston Price2595 Cyl & Piston 00 Fox 19 ed cyl having two additional by-passes Runs faster stock Throttle Model3395 Std Intake Model 95 Cyl & Piston . 0 above items call 501-646-1656 or write us directly NEW ITEMS YOU SHOULD TRY Control line flyers should aware Fox Bell Cranks ones will reliably withstand 100 lb pull test Reason made 063 hard alum compe titors 051 soft Small hell crank 86778 Large bell crank 86779 Fox Glow Plug Taps made use production High speed steel precision ground 71432 4-32 Tap $1000 Fox FILL Fuel Bulb Fills its full 4 oz 8 seconds Heavy wall Ideal filling bladder tanks 30500 fits Pint & Qt cans 30501 fits Gal cans 195 Fox Medium Profile Fuel Tanks brand new shape contains baffle outlet side can run close engine Choice 6 lengths 275 Fox Fuel Line silicone line almost twice strong nearest competitor Try skeptical surgical tubing made specs has heavy wall does collapse Small Surgical Tubing t Med Surgical Tubing25 Ft Large Surgical Tubing Ft Small Tuffline silicone 55 Ft Med Tuffline silicone t Large Tuffline silicone 100 Ft Fox 90303 Tuned Muffler will gain about 700 RPM 60 Universal adapter fits Webra OS Enya Tigre KB well FOX Eagle & Hawk Most effective l1-7/a prop stock priced $2495 FX MANUFACTURING COMPANY 5305 Towson Fort Smith AR 72901 S Nimbus EKiogictrol new 4-channel radio system offers American engineering import prices Features indude. 1 Solid state superheterodyne 2 All silicon transistor receiver circuit double tuned front end 3 RF amplifier maximum signal noise ratio unexcelled selectivity 4 4 ultra small EK SM servos greater 4 pounds output thrust 5 Receiver servos equipped 3 pin Deans gold plated plugs 6 Adjustable tension control sticks 1977 EK-Products Inc 773 full line brochure write EK-logictrol 3322 Stovall St Irving TX 75061 USA Catalogs also available price $100 distributors jobbers dealers contact us new merchandising program EK log ictrol - . . gust1977 5 1st RC Masters Class 1st RC Advanced 1st RC Novice 1st RC Sport Scale 1st Formula Pylon 1st Quarter Midget Pylon 1st CL Stunt Open 1st CL Stunt Senior 1st CL Stunt Junior 1st CL Combat O & Sr 1st CL Slow Comb Op & Sr 1st CL Carrier II Op Jr Sr 1st CL Carrier Jr & Sr 1st CL Class D Speed Open 1st CL Class C Speed Jr & Sr 1st CLCIassB Speed Op & Sr 1st CL Cl Speed Op Sr Jr 1st CL Formula 40 Open 1st CL Class B Proto Jr 1st FF Class B Open 1st FF Class C Open HIGH PERFORMANCE * COMPETITION PROVEN * THIN RIGID BLADES OF HARD MAPLE WOOD * SUPERBLY FINISHED COMPtETELY FUEL PUOOF SPECIAL PRO SERIES 2 FOR RC-FREE FLIGHT CONTROL LINE DIAPITCHPRICE 6%3489 63499 733A4119 83Y456129 94566% 77%139 10467149 106W 8W149 106EW159 114677. 7% 7% 8159 116EW169 11%67169 126179 125W179 1356219 1456249 1556309 164%6389 W WIDE BLADE 6W EXTRA WIDE SERIES 400 B FOR SPEED NG ADVANCED DESIGN NO 1 IN PYLON RACING LEADING SPEED RECORD HOLDER OF ALL TIMES RC PYLON RACING DIA PITCH PRICE 5%3%4119 7 55%6 129 7 SN 5YN 6N129 8% 6%6%7 7%7%169 9 6%7 7%7%169 CONTROL LINE SPEEDS RACING DIA PITCH PRICE 4%6%7119 455%119 6788%129 77% 10% 11139 889149 89N 9%N149 8%77%149 912 13199 N NARROW Letters Editor continued page 5 fered customers sending orders APO/FPO addresses am sure such action dealers espe cially AMA would earn undying appreciation modelers world over because mencan modelers over world Richard Gadarin CW4 US Army APO NY R C Helicopters/Schoonard continued page 24 off vibration simple cure problem zap two V8 X 1/4 X ood blocks inside mounting tabs fit fuselage can drilled tapped 4-40 small sheetmetal screws makes very secure mount simple Free Floating Main Rotor Blades very hard time-consuming things setting up Jet Ranger has setting rotor-blade lead lag does take great deal time process accomplish perfect lead lag includes blade tongues have bad habit splitting blades slight upset answer problems free-floating blades Ernie Huber has done rolls loops free-floating blades Green ville last year several crashes due engine failure though heli copter sustained severe damage time no damage done blades have experimenting dualpivot points main rotor blades theory calm hot weather need rotor disc area windy weather less disc area pivot holes drilled apart disc can increased decreased 1 inch es simply installing blades dif ferent hole has worked really well have found setting requires re tracting blades However minor problem takes couple Continued page 78 52 Model Aviation OUT-PERFORMS ALL OTHERS AT THE 1976 NATIONALS Above Tail-rotor control modifications Alouette smooth silk easy make BelowSoft aluminum shrouds added Alouette around muffler engine improve cooling


Edition: Model Aviation - 1977/08
Page Numbers: 4, 5, 52

MIDWEST B/C Models Give choose . theres Midst model almost kind R/C flyer de sires ATTACKER All-molded styrofoam airplane goes gether fast Rugged its great sport plane easy-to-fly advanced trainer Big 48 span powered 19- 35-size engines 4 chan nels Complete hardware package Designed Jim NewmanKit No 134 SUPER CHIPMUNK ARF injection-molded foam 10 19 en gines Wing span 46 Three channels En gine throttle elevator ailerons Four channels Engine throttle elevator ailerons rudder Kit No 126 STR 1K EMASTER Wing span 55 inches Engine sizes 19 40 Foam wing cores balsa covering material sup plied Balsa plywood fuselage die cut Balsa sheet fin stabilizer machine cut fittings hardware formed wire pacts sup plied Designed Jim Newman Kit No 130 nwes PRODUCTS CO M 400 South Indiana St Hobart Indiana 46342 --- letters 3z7 editor SME T letters will carefully considered general interest used Send Model Aviation 815 15th St N W Washington DC 20005 Ace High Give Him Twin Enclosed two photos Ace High Glider modified original plans pulse-rudder-only Picture shows both rudder elevator controls Also re-inforced fuselage tail section weak point glued stab instead using rubberbands made cowl cover two screws mounting also easier access radio installation also built pulse-rudder-only flew quite well altitude could main tained nor level flight Control land ings good always possibility stalls dips de crease altitude necessary spiral down too good wing as it looped control neutralized two controls am using two EK servos glider performance flight characteristics greatly improved Level flight altitude can main tained good turns some stunts can easily made Stalling dips landing eliminated completely excel lent landings can made Using 049 Cox engine fuel tank extension longer flights experienced per formance good added servo weight no problem also excellent performer beginner much easier learn RC less crashes confidence Arthur Oberstaedt AMA 79497 Brighton MI Mr Oberstaedts remarks about Ace High glider equipped rudderonly should construed criticism Actually experience design both rudder-only two servos rudder elevatorsimply point up differences both modes offlying bonus accrues addition ele vator Incidentally proud being senior modelerhe 68 would like say enjoy Model via tion magazine read cover cov er think Model Design section should have multi-engine plans Whether RC control line scale profile doesnt matter prefer control line Multi-engine planes lot fun Leigh Garry AMA 86649 Flushing NY Well keep mind Leigh sched ule rounded out 1977 perhaps well find suitable twin before next sea son Quite afew multi-engined kits exist RCfield advertising various mag azines indicates Murrays Answer April copy Model viation found old friend named own Answer depicted True saw last Bakersfield big meet 1939 Free Flight Murray beat us day am 64 now have missile engineer Apollo Saturn V Retired now going get involved gas models Scotty no longer us han dled kit Answer 1940 under name Topper still Frank H Chaussee Palmdale CA Scotty killed during siege Malta WW II enlisted RCAF early war vic tories credit Spitfire pilot fell victim attacked taking off having shot down four fighters same day Topper kitted Bay Ridge Brooklyn long since out business Sea Without offending good friends United Kingdom thought appro priate forward enclosed article appeared Athens Greece Athens News Sunday 23 January 1977 Salcombe England APRes cue services swung action Sat urday after aircraft reported have crashed sea off Devon County town two survi 4 Model Aviation vors spotted dinghy Salcombe lifeboat Royal Air Force rescue launch Plym outh went out RAF helicop ter called Chivenor north Devon coast found 20-foot wing span model airplane water two fishermen happily floating dinghy Happen have paper flying field 23rd few fliers got good chuckle out article Duwaine L Laib AMA 39296 Lt US Navy Greece Thank just finished reading Keith Gebers ar ticle Shoot Model Movie Film want compliment selec tion Mr Gebers preparation best presentation have ever read magazine basics Movie Making Bradford W Powers San Diego CA Advertisers Take Note realize am late application special Model viat ion magazine subscription am located overseas area Army did receive AMA News until late Friday evening November 5 seems nobody allows consideration people located APO/EPO addresses magazine sub scriptions arrive APO/FPO addresses too late subscribers take advan tage specials offered various sup ply sources same applies maga zines sold newsstands al cases arrive later subscrip tion issues Could Academy possibly suggest various hobby dealers advertising various modeling magazines con sider members military com munity Army Air Force Navy al low 30-day extensions specials ofCon tinued page 52 ATT CONTEST MODELERS offering several items direct basis wholesalers care stock due limited appeal Fox 29 version Combat Special produces about 1 HP @ 21000 RPM 60% nitro e S4495 Fox 40 ase fitted meehan ite piston Faster stock Can fitted carb choice Throttle Model6495 Std Intake Model 495 Stunt 35 ed hardened cyl hard piston Price2595 Cyl & Piston 00 Fox 19 ed cyl having two additional by-passes Runs faster stock Throttle Model3395 Std Intake Model 95 Cyl & Piston . 0 above items call 501-646-1656 or write us directly NEW ITEMS YOU SHOULD TRY Control line flyers should aware Fox Bell Cranks ones will reliably withstand 100 lb pull test Reason made 063 hard alum compe titors 051 soft Small hell crank 86778 Large bell crank 86779 Fox Glow Plug Taps made use production High speed steel precision ground 71432 4-32 Tap $1000 Fox FILL Fuel Bulb Fills its full 4 oz 8 seconds Heavy wall Ideal filling bladder tanks 30500 fits Pint & Qt cans 30501 fits Gal cans 195 Fox Medium Profile Fuel Tanks brand new shape contains baffle outlet side can run close engine Choice 6 lengths 275 Fox Fuel Line silicone line almost twice strong nearest competitor Try skeptical surgical tubing made specs has heavy wall does collapse Small Surgical Tubing t Med Surgical Tubing25 Ft Large Surgical Tubing Ft Small Tuffline silicone 55 Ft Med Tuffline silicone t Large Tuffline silicone 100 Ft Fox 90303 Tuned Muffler will gain about 700 RPM 60 Universal adapter fits Webra OS Enya Tigre KB well FOX Eagle & Hawk Most effective l1-7/a prop stock priced $2495 FX MANUFACTURING COMPANY 5305 Towson Fort Smith AR 72901 S Nimbus EKiogictrol new 4-channel radio system offers American engineering import prices Features indude. 1 Solid state superheterodyne 2 All silicon transistor receiver circuit double tuned front end 3 RF amplifier maximum signal noise ratio unexcelled selectivity 4 4 ultra small EK SM servos greater 4 pounds output thrust 5 Receiver servos equipped 3 pin Deans gold plated plugs 6 Adjustable tension control sticks 1977 EK-Products Inc 773 full line brochure write EK-logictrol 3322 Stovall St Irving TX 75061 USA Catalogs also available price $100 distributors jobbers dealers contact us new merchandising program EK log ictrol - . . gust1977 5 1st RC Masters Class 1st RC Advanced 1st RC Novice 1st RC Sport Scale 1st Formula Pylon 1st Quarter Midget Pylon 1st CL Stunt Open 1st CL Stunt Senior 1st CL Stunt Junior 1st CL Combat O & Sr 1st CL Slow Comb Op & Sr 1st CL Carrier II Op Jr Sr 1st CL Carrier Jr & Sr 1st CL Class D Speed Open 1st CL Class C Speed Jr & Sr 1st CLCIassB Speed Op & Sr 1st CL Cl Speed Op Sr Jr 1st CL Formula 40 Open 1st CL Class B Proto Jr 1st FF Class B Open 1st FF Class C Open HIGH PERFORMANCE * COMPETITION PROVEN * THIN RIGID BLADES OF HARD MAPLE WOOD * SUPERBLY FINISHED COMPtETELY FUEL PUOOF SPECIAL PRO SERIES 2 FOR RC-FREE FLIGHT CONTROL LINE DIAPITCHPRICE 6%3489 63499 733A4119 83Y456129 94566% 77%139 10467149 106W 8W149 106EW159 114677. 7% 7% 8159 116EW169 11%67169 126179 125W179 1356219 1456249 1556309 164%6389 W WIDE BLADE 6W EXTRA WIDE SERIES 400 B FOR SPEED NG ADVANCED DESIGN NO 1 IN PYLON RACING LEADING SPEED RECORD HOLDER OF ALL TIMES RC PYLON RACING DIA PITCH PRICE 5%3%4119 7 55%6 129 7 SN 5YN 6N129 8% 6%6%7 7%7%169 9 6%7 7%7%169 CONTROL LINE SPEEDS RACING DIA PITCH PRICE 4%6%7119 455%119 6788%129 77% 10% 11139 889149 89N 9%N149 8%77%149 912 13199 N NARROW Letters Editor continued page 5 fered customers sending orders APO/FPO addresses am sure such action dealers espe cially AMA would earn undying appreciation modelers world over because mencan modelers over world Richard Gadarin CW4 US Army APO NY R C Helicopters/Schoonard continued page 24 off vibration simple cure problem zap two V8 X 1/4 X ood blocks inside mounting tabs fit fuselage can drilled tapped 4-40 small sheetmetal screws makes very secure mount simple Free Floating Main Rotor Blades very hard time-consuming things setting up Jet Ranger has setting rotor-blade lead lag does take great deal time process accomplish perfect lead lag includes blade tongues have bad habit splitting blades slight upset answer problems free-floating blades Ernie Huber has done rolls loops free-floating blades Green ville last year several crashes due engine failure though heli copter sustained severe damage time no damage done blades have experimenting dualpivot points main rotor blades theory calm hot weather need rotor disc area windy weather less disc area pivot holes drilled apart disc can increased decreased 1 inch es simply installing blades dif ferent hole has worked really well have found setting requires re tracting blades However minor problem takes couple Continued page 78 52 Model Aviation OUT-PERFORMS ALL OTHERS AT THE 1976 NATIONALS Above Tail-rotor control modifications Alouette smooth silk easy make BelowSoft aluminum shrouds added Alouette around muffler engine improve cooling


Edition: Model Aviation - 1977/08
Page Numbers: 4, 5, 52

MIDWEST B/C Models Give choose . theres Midst model almost kind R/C flyer de sires ATTACKER All-molded styrofoam airplane goes gether fast Rugged its great sport plane easy-to-fly advanced trainer Big 48 span powered 19- 35-size engines 4 chan nels Complete hardware package Designed Jim NewmanKit No 134 SUPER CHIPMUNK ARF injection-molded foam 10 19 en gines Wing span 46 Three channels En gine throttle elevator ailerons Four channels Engine throttle elevator ailerons rudder Kit No 126 STR 1K EMASTER Wing span 55 inches Engine sizes 19 40 Foam wing cores balsa covering material sup plied Balsa plywood fuselage die cut Balsa sheet fin stabilizer machine cut fittings hardware formed wire pacts sup plied Designed Jim Newman Kit No 130 nwes PRODUCTS CO M 400 South Indiana St Hobart Indiana 46342 --- letters 3z7 editor SME T letters will carefully considered general interest used Send Model Aviation 815 15th St N W Washington DC 20005 Ace High Give Him Twin Enclosed two photos Ace High Glider modified original plans pulse-rudder-only Picture shows both rudder elevator controls Also re-inforced fuselage tail section weak point glued stab instead using rubberbands made cowl cover two screws mounting also easier access radio installation also built pulse-rudder-only flew quite well altitude could main tained nor level flight Control land ings good always possibility stalls dips de crease altitude necessary spiral down too good wing as it looped control neutralized two controls am using two EK servos glider performance flight characteristics greatly improved Level flight altitude can main tained good turns some stunts can easily made Stalling dips landing eliminated completely excel lent landings can made Using 049 Cox engine fuel tank extension longer flights experienced per formance good added servo weight no problem also excellent performer beginner much easier learn RC less crashes confidence Arthur Oberstaedt AMA 79497 Brighton MI Mr Oberstaedts remarks about Ace High glider equipped rudderonly should construed criticism Actually experience design both rudder-only two servos rudder elevatorsimply point up differences both modes offlying bonus accrues addition ele vator Incidentally proud being senior modelerhe 68 would like say enjoy Model via tion magazine read cover cov er think Model Design section should have multi-engine plans Whether RC control line scale profile doesnt matter prefer control line Multi-engine planes lot fun Leigh Garry AMA 86649 Flushing NY Well keep mind Leigh sched ule rounded out 1977 perhaps well find suitable twin before next sea son Quite afew multi-engined kits exist RCfield advertising various mag azines indicates Murrays Answer April copy Model viation found old friend named own Answer depicted True saw last Bakersfield big meet 1939 Free Flight Murray beat us day am 64 now have missile engineer Apollo Saturn V Retired now going get involved gas models Scotty no longer us han dled kit Answer 1940 under name Topper still Frank H Chaussee Palmdale CA Scotty killed during siege Malta WW II enlisted RCAF early war vic tories credit Spitfire pilot fell victim attacked taking off having shot down four fighters same day Topper kitted Bay Ridge Brooklyn long since out business Sea Without offending good friends United Kingdom thought appro priate forward enclosed article appeared Athens Greece Athens News Sunday 23 January 1977 Salcombe England APRes cue services swung action Sat urday after aircraft reported have crashed sea off Devon County town two survi 4 Model Aviation vors spotted dinghy Salcombe lifeboat Royal Air Force rescue launch Plym outh went out RAF helicop ter called Chivenor north Devon coast found 20-foot wing span model airplane water two fishermen happily floating dinghy Happen have paper flying field 23rd few fliers got good chuckle out article Duwaine L Laib AMA 39296 Lt US Navy Greece Thank just finished reading Keith Gebers ar ticle Shoot Model Movie Film want compliment selec tion Mr Gebers preparation best presentation have ever read magazine basics Movie Making Bradford W Powers San Diego CA Advertisers Take Note realize am late application special Model viat ion magazine subscription am located overseas area Army did receive AMA News until late Friday evening November 5 seems nobody allows consideration people located APO/EPO addresses magazine sub scriptions arrive APO/FPO addresses too late subscribers take advan tage specials offered various sup ply sources same applies maga zines sold newsstands al cases arrive later subscrip tion issues Could Academy possibly suggest various hobby dealers advertising various modeling magazines con sider members military com munity Army Air Force Navy al low 30-day extensions specials ofCon tinued page 52 ATT CONTEST MODELERS offering several items direct basis wholesalers care stock due limited appeal Fox 29 version Combat Special produces about 1 HP @ 21000 RPM 60% nitro e S4495 Fox 40 ase fitted meehan ite piston Faster stock Can fitted carb choice Throttle Model6495 Std Intake Model 495 Stunt 35 ed hardened cyl hard piston Price2595 Cyl & Piston 00 Fox 19 ed cyl having two additional by-passes Runs faster stock Throttle Model3395 Std Intake Model 95 Cyl & Piston . 0 above items call 501-646-1656 or write us directly NEW ITEMS YOU SHOULD TRY Control line flyers should aware Fox Bell Cranks ones will reliably withstand 100 lb pull test Reason made 063 hard alum compe titors 051 soft Small hell crank 86778 Large bell crank 86779 Fox Glow Plug Taps made use production High speed steel precision ground 71432 4-32 Tap $1000 Fox FILL Fuel Bulb Fills its full 4 oz 8 seconds Heavy wall Ideal filling bladder tanks 30500 fits Pint & Qt cans 30501 fits Gal cans 195 Fox Medium Profile Fuel Tanks brand new shape contains baffle outlet side can run close engine Choice 6 lengths 275 Fox Fuel Line silicone line almost twice strong nearest competitor Try skeptical surgical tubing made specs has heavy wall does collapse Small Surgical Tubing t Med Surgical Tubing25 Ft Large Surgical Tubing Ft Small Tuffline silicone 55 Ft Med Tuffline silicone t Large Tuffline silicone 100 Ft Fox 90303 Tuned Muffler will gain about 700 RPM 60 Universal adapter fits Webra OS Enya Tigre KB well FOX Eagle & Hawk Most effective l1-7/a prop stock priced $2495 FX MANUFACTURING COMPANY 5305 Towson Fort Smith AR 72901 S Nimbus EKiogictrol new 4-channel radio system offers American engineering import prices Features indude. 1 Solid state superheterodyne 2 All silicon transistor receiver circuit double tuned front end 3 RF amplifier maximum signal noise ratio unexcelled selectivity 4 4 ultra small EK SM servos greater 4 pounds output thrust 5 Receiver servos equipped 3 pin Deans gold plated plugs 6 Adjustable tension control sticks 1977 EK-Products Inc 773 full line brochure write EK-logictrol 3322 Stovall St Irving TX 75061 USA Catalogs also available price $100 distributors jobbers dealers contact us new merchandising program EK log ictrol - . . gust1977 5 1st RC Masters Class 1st RC Advanced 1st RC Novice 1st RC Sport Scale 1st Formula Pylon 1st Quarter Midget Pylon 1st CL Stunt Open 1st CL Stunt Senior 1st CL Stunt Junior 1st CL Combat O & Sr 1st CL Slow Comb Op & Sr 1st CL Carrier II Op Jr Sr 1st CL Carrier Jr & Sr 1st CL Class D Speed Open 1st CL Class C Speed Jr & Sr 1st CLCIassB Speed Op & Sr 1st CL Cl Speed Op Sr Jr 1st CL Formula 40 Open 1st CL Class B Proto Jr 1st FF Class B Open 1st FF Class C Open HIGH PERFORMANCE * COMPETITION PROVEN * THIN RIGID BLADES OF HARD MAPLE WOOD * SUPERBLY FINISHED COMPtETELY FUEL PUOOF SPECIAL PRO SERIES 2 FOR RC-FREE FLIGHT CONTROL LINE DIAPITCHPRICE 6%3489 63499 733A4119 83Y456129 94566% 77%139 10467149 106W 8W149 106EW159 114677. 7% 7% 8159 116EW169 11%67169 126179 125W179 1356219 1456249 1556309 164%6389 W WIDE BLADE 6W EXTRA WIDE SERIES 400 B FOR SPEED NG ADVANCED DESIGN NO 1 IN PYLON RACING LEADING SPEED RECORD HOLDER OF ALL TIMES RC PYLON RACING DIA PITCH PRICE 5%3%4119 7 55%6 129 7 SN 5YN 6N129 8% 6%6%7 7%7%169 9 6%7 7%7%169 CONTROL LINE SPEEDS RACING DIA PITCH PRICE 4%6%7119 455%119 6788%129 77% 10% 11139 889149 89N 9%N149 8%77%149 912 13199 N NARROW Letters Editor continued page 5 fered customers sending orders APO/FPO addresses am sure such action dealers espe cially AMA would earn undying appreciation modelers world over because mencan modelers over world Richard Gadarin CW4 US Army APO NY R C Helicopters/Schoonard continued page 24 off vibration simple cure problem zap two V8 X 1/4 X ood blocks inside mounting tabs fit fuselage can drilled tapped 4-40 small sheetmetal screws makes very secure mount simple Free Floating Main Rotor Blades very hard time-consuming things setting up Jet Ranger has setting rotor-blade lead lag does take great deal time process accomplish perfect lead lag includes blade tongues have bad habit splitting blades slight upset answer problems free-floating blades Ernie Huber has done rolls loops free-floating blades Green ville last year several crashes due engine failure though heli copter sustained severe damage time no damage done blades have experimenting dualpivot points main rotor blades theory calm hot weather need rotor disc area windy weather less disc area pivot holes drilled apart disc can increased decreased 1 inch es simply installing blades dif ferent hole has worked really well have found setting requires re tracting blades However minor problem takes couple Continued page 78 52 Model Aviation OUT-PERFORMS ALL OTHERS AT THE 1976 NATIONALS Above Tail-rotor control modifications Alouette smooth silk easy make BelowSoft aluminum shrouds added Alouette around muffler engine improve cooling

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