IIOGeorgeMMyers HERE sit typewriter again Christmas over Ive just completed another frustrating session dark room actually its bathroom piece plywood over tub work ing surface Spend some time trying make prints color negatives will gain new appreciation Polaroid believe Anyway radio tells Dollar hit new low December relative Yen Mark guess hobby prices going Right upand-away now contemplat ing purchase new radio system per haps good time take another look Buy American idea Foreign manufacturers have com eting American market basis good quality low prices first re sponse domestic producers cut out frills order meet price proved though American buyer may fickle thing constant. buy quality time current appeal patronage made opposite direction now offer some kind Super System common characteristic offer ings lots control demonstrate approach borrowed Pro-Line Cus tom Competition radio Tony 0 gen ial proprieter Bellmore Hobby 104 Bedford Aye Bellmore NY 11710 shown Fig Pro isnt cheapest item mar ket rising foreign prices talk about first place radio representative path American manufacturers taking compete cheap foreign imports have lot free advertising column al ready second place regular read ers aware fact own op erate 1971 Pro-Line single-stick Com petition Six purchased time became totally fed up glitches other forms interference becoming common 27 MHZ What wanted now system would work time Pro did does Ive replaced batteries some minor parts still works like new Enough testimonial lets see whats new openers get seven channels stead six Very few people ever use five channels its nice know ready scale job will build some day isnt Next find roll button some dual-rate switches dont know what things let give couple examples 1 You flying pattern competition find somewhat difficult get ex actly three axial rolls five seconds Push roll button ailerons will de flect position have previously determined will give exactly three rolls five seconds Now ailerons ta ken care have stir sticks right take care elevator rudder hand 2 You ready enter spin need everything except throttle get started Flip dual-rate switch get what need 3 You up new model controls too sensitive order land beast safely must cut down control responses right now Flip dualrate switch things get comfortable Aside nice-to-have items get unit two extremely smooth all-metal open-gimbal sticks landing-gear switch two auxilliary channel levers play 40-in 9-section antenna stores inside case welcome change unit front panel sports meter marked 0 Low Normal particular unit seems adjusted read full nor mal time dislike rate check RS-RFM shows about 750mw output 25% above old unit enough power handle reasonable flying situation Some other manufacturers have devoted lot attention front panel meter making expandedscale voltmeter tests both transmitter receiver batteries Royal offers timer audio low-voltage alarm Now significant additions feel urge unit lets adjust 14 control functions transmitter 1 Aileron Gain 2 Elevator Gain 3 Rudder Gain 4 Aux Gain 5 Aux 2 Gain controls #1-5 allow set maximum responses named con trols normal mode 6 Retract Up position 7 Retract Down position 8 Throttle Gain DirectionThis 18 Model Aviation Fig 1 Typifying American-made trend 1977 Proline right compared 1971 equipment mirror shows completely new transmitter board has fitted give 14 adjustments along latest electronic design components Thanks iiitegrated circuits receiver servos little smaller lighter reversible control should save little servo-swapping armchang ing 9 Aileron Dual Rate 10 Elevator Dual Rate 11 Rudder Dual Rate controls #9-10 allow set maximum responses named con trols Dual-rate position 12 Aileron Push button trim 13 Elevator Push button trim 14 Throttle Push button trim push down aileron elevator throttle push buttons can adjust fixed control surface deflections produce automatic snap-roll spin last three controls seem like waste time thats mans opinion would like see per mitted competition because ration ale would justify use would also permit tape recorder play pre-re corded routine transmitter coupled Maynard Hills atmos pheric-potential sensing device could lead contests everybody could stay home watch toys play selves television needs Im school believes should learn fly because great pleasure learning deal situation has independent variables great satisfaction learning master yourself can master situation though program computers work its means end end itself bought first Pro-line liked kind thinking provided 3-wire servos time everyone else clinging less-desirable 4-wire types also believe diode-protected bat tery pack responsible way go 1977 Pro has diodes checked Dont wish everyone else did See Fig 2 Another feature becoming com mon interchangeable RF modules Fig 3 shows Pro-Line does transmit ter module held place two screws also hold frequency identifica tion tag exterior case ternal connections made two polarized Deans connectors complete air borne receiver board less decoder out put pigtails similarly interchangeable convenient flipping switch such older Heathkit Kraft sets expect way Continued page 84 April1978 19 Fig 4 Top bottoma 1971 Kraft KPS1O Cannon Supermini Servo Kraft 1977 KPS-18 No dramatic evidence progress can found shown examples Fig 2 printed circuit board diodes plainly visible between batteries Proline continues good idea Fig 3 RF module shown removed its nest top transmitter box placed nearby show its size OUT- PERFORMS ALL OTHERS AT THE 1976 NATIONALS 1st RC Masters Class 1st NC Advanced let NC Novice 1st NC Sport Scale 1st Formula Pylon 1st Quarter Midget Pylon 1st CL Stunt Open 1st CL Stunt Senior 1st CL Stuns Junior 1st CL Combat Op & Sr let CL Slom Comb Op & Sr 1st CL Carrier II Op Jr Sr let CL Carrier Jr & Sr 1st CL Class D Speed Open 1st CL Class C Speed Jr & Sr let CLCIassB Speed Op & Sr let CL Cl Speed Op Sr Jr 1st CL Formula 40 Open 1st CL Class B Proto Jr 1st FF Class B Open let PP Clam C Open HIGH PERFORMANCE * COMPETITION PROVEN * THIN RIGID BLADES QF HARD MAPLE WOOD * SUPERBLY FINISHED COMPLETELY FUEL PROOF SPECIAL PRO SERIES 2 Foe RC-FREE FLIGHT CONTROL LINE DIAPITCHPRICE 5%3489 63489 733%4119 83%45B129 94566% 77139 10467149 106W 8W149 10BEst159 114677% 7% 7% 8159 11BEW169 11%67169 126179 125W179 1356219 145 6249 1556309 164% 6389 5ll WIDE BLADE 6W EXTRA WIDE SERIES 4008 FOR SPEED NG ADVANCED DESIGN ND 1 IN PYLON RACING LEADING SPEED RECORD HOLDER OP ALL TIMES AC PYLON RACING DIA PITCHPR ICE 5%3Y4129 755%6149 7SN 5%N 6N149 8%6%6%7 7%7%189 96%7 7A7%189 CONTROL LINE SPEEO& RACING DIA PITCH PRICE 4%6A7129 4555%129 6788%149 77A1OA11169 899189 89N 9/N189 8%77%189 912 13219 N NARROW model continued interest model itself fullscale prototype looks like some has worn off already Word has Dick Buck now flying Bob Hiseys ships Toledo Weak Signals field Welcome scale Radio Technique/Myers continued page 79 retain well-known highly-regarded Pro-line fine tuning variety servos offered sys tem has PLS-l great gener al purpose size small light enough satisfactory 1/2A racer yet strong enough control piped-60 pattern model older Pro-line servos compatible new system arent obsolete just because newer system being manufactured Which nice way treat customers Some people want lessless weight smaller dimensions Fig 4 shows Kraft satisfying desire 12 oun ces KPS-18 smaller Cannon Mini Like leather upholstery custom-built car servo feels sounds quality its 30000-rpm motor tiny output wheel jewel work art isnt cheap once again get what pay Ive yet see larger servo pre cise its centering balanced its action Bob Aberle proud owner hes feeling good lets look tie ribbon discussion American manufacturers still offer lot quality plenty variety Before buy ing cheapest thing thats offered give Made America serious thought pay what get what get RC Simulates/Akelewicz continued page 22 RC RSPAMs RSPAM 1/Charioteer rimental Wing span 36 diameter Length 48 Weight 7 10 lbs K&B 40 RSPAM 2/AURIGA Private type 4passenger Wing span modified 42 diameter Length 49 Weight 7 11 lbs K&B 40 Supertigre 46 RSPAM 3/AURIGA II Private type two place Wing span modified 36 diameter Length 411/2 Weight 5 9 lbs K&B 40 Fuselage mainframes thin plywood Balsa No land urethane foam contour No 2 3 Wings urethane foam No 1 2 Styrofoam meat tray ribs capstrips No 3 Covering three colored polymer heat-shrink film RC equipment MRC 5-channel No 3 RS Systems 6-channel No 2 Comments welcome SASE would appreciated would like reply RC Scale/Wischers continued page 24 area 165 ounces per sq ft lightly loaded plane Choosing Contest Model collec tion have four WW planes Sopwith 1 Strutter Bristol M-l monoplane Nieuport 27 Nicuport 17 lightly built Sopwith extremely light detailed plane having wing loading 136 ounces per sq ft planes well Douglas have problem high wind because pepetration poor due over-abundance drag worse handling gusts ground turbulence because low wing loadings airplane has light wing loading its stalling speed same less wind velocity diffi cult handle realistically takeoff landing will lift off short run its landings have no roll-out after touching down result re motely realistic leads conclu sion true realism will-o-the-wisp attainable under ideal conditions sel dom found contests Sailplanes because clean aerodynamically usual ly successful overcoming adverse conditions ballast penetration Under ideal conditions World War planes joy fly cannot sensi bly use Nats hoping lucky flight before easy judges know some flight scores may little half what re quired stake 1977 Nats chance represent US next World Championships needed therefore minimize luck element especially true warned beforehand strong wind could expected Riverside during Twin Stik Trainer 19 30-size engines twin has exceptional single-engine per formance proven docile flying character istiCs long-popular Stik series multichannel kits should make Twin Stik Train er easy handle twin can cluded kit two lightweight aluminum engine mounts nylon blocks preformed landing gear molded nylon steerable nose gear bearing hinges etc Span 54 4-channels $4995 Midwest Products Co 400 5 Indiana St Hobart IN 46342 product review product review product review 84 Model Aviation NEWS FLASH Bob Smith Chatsworth CA set new World Speed Record June 19 Pylon mula Ii 125 RevUp 8%-6% new Pylon Rac ing propl Droduct review product review product review
Edition: Model Aviation - 1978/04
Page Numbers: 18, 19, 84
IIOGeorgeMMyers HERE sit typewriter again Christmas over Ive just completed another frustrating session dark room actually its bathroom piece plywood over tub work ing surface Spend some time trying make prints color negatives will gain new appreciation Polaroid believe Anyway radio tells Dollar hit new low December relative Yen Mark guess hobby prices going Right upand-away now contemplat ing purchase new radio system per haps good time take another look Buy American idea Foreign manufacturers have com eting American market basis good quality low prices first re sponse domestic producers cut out frills order meet price proved though American buyer may fickle thing constant. buy quality time current appeal patronage made opposite direction now offer some kind Super System common characteristic offer ings lots control demonstrate approach borrowed Pro-Line Cus tom Competition radio Tony 0 gen ial proprieter Bellmore Hobby 104 Bedford Aye Bellmore NY 11710 shown Fig Pro isnt cheapest item mar ket rising foreign prices talk about first place radio representative path American manufacturers taking compete cheap foreign imports have lot free advertising column al ready second place regular read ers aware fact own op erate 1971 Pro-Line single-stick Com petition Six purchased time became totally fed up glitches other forms interference becoming common 27 MHZ What wanted now system would work time Pro did does Ive replaced batteries some minor parts still works like new Enough testimonial lets see whats new openers get seven channels stead six Very few people ever use five channels its nice know ready scale job will build some day isnt Next find roll button some dual-rate switches dont know what things let give couple examples 1 You flying pattern competition find somewhat difficult get ex actly three axial rolls five seconds Push roll button ailerons will de flect position have previously determined will give exactly three rolls five seconds Now ailerons ta ken care have stir sticks right take care elevator rudder hand 2 You ready enter spin need everything except throttle get started Flip dual-rate switch get what need 3 You up new model controls too sensitive order land beast safely must cut down control responses right now Flip dualrate switch things get comfortable Aside nice-to-have items get unit two extremely smooth all-metal open-gimbal sticks landing-gear switch two auxilliary channel levers play 40-in 9-section antenna stores inside case welcome change unit front panel sports meter marked 0 Low Normal particular unit seems adjusted read full nor mal time dislike rate check RS-RFM shows about 750mw output 25% above old unit enough power handle reasonable flying situation Some other manufacturers have devoted lot attention front panel meter making expandedscale voltmeter tests both transmitter receiver batteries Royal offers timer audio low-voltage alarm Now significant additions feel urge unit lets adjust 14 control functions transmitter 1 Aileron Gain 2 Elevator Gain 3 Rudder Gain 4 Aux Gain 5 Aux 2 Gain controls #1-5 allow set maximum responses named con trols normal mode 6 Retract Up position 7 Retract Down position 8 Throttle Gain DirectionThis 18 Model Aviation Fig 1 Typifying American-made trend 1977 Proline right compared 1971 equipment mirror shows completely new transmitter board has fitted give 14 adjustments along latest electronic design components Thanks iiitegrated circuits receiver servos little smaller lighter reversible control should save little servo-swapping armchang ing 9 Aileron Dual Rate 10 Elevator Dual Rate 11 Rudder Dual Rate controls #9-10 allow set maximum responses named con trols Dual-rate position 12 Aileron Push button trim 13 Elevator Push button trim 14 Throttle Push button trim push down aileron elevator throttle push buttons can adjust fixed control surface deflections produce automatic snap-roll spin last three controls seem like waste time thats mans opinion would like see per mitted competition because ration ale would justify use would also permit tape recorder play pre-re corded routine transmitter coupled Maynard Hills atmos pheric-potential sensing device could lead contests everybody could stay home watch toys play selves television needs Im school believes should learn fly because great pleasure learning deal situation has independent variables great satisfaction learning master yourself can master situation though program computers work its means end end itself bought first Pro-line liked kind thinking provided 3-wire servos time everyone else clinging less-desirable 4-wire types also believe diode-protected bat tery pack responsible way go 1977 Pro has diodes checked Dont wish everyone else did See Fig 2 Another feature becoming com mon interchangeable RF modules Fig 3 shows Pro-Line does transmit ter module held place two screws also hold frequency identifica tion tag exterior case ternal connections made two polarized Deans connectors complete air borne receiver board less decoder out put pigtails similarly interchangeable convenient flipping switch such older Heathkit Kraft sets expect way Continued page 84 April1978 19 Fig 4 Top bottoma 1971 Kraft KPS1O Cannon Supermini Servo Kraft 1977 KPS-18 No dramatic evidence progress can found shown examples Fig 2 printed circuit board diodes plainly visible between batteries Proline continues good idea Fig 3 RF module shown removed its nest top transmitter box placed nearby show its size OUT- PERFORMS ALL OTHERS AT THE 1976 NATIONALS 1st RC Masters Class 1st NC Advanced let NC Novice 1st NC Sport Scale 1st Formula Pylon 1st Quarter Midget Pylon 1st CL Stunt Open 1st CL Stunt Senior 1st CL Stuns Junior 1st CL Combat Op & Sr let CL Slom Comb Op & Sr 1st CL Carrier II Op Jr Sr let CL Carrier Jr & Sr 1st CL Class D Speed Open 1st CL Class C Speed Jr & Sr let CLCIassB Speed Op & Sr let CL Cl Speed Op Sr Jr 1st CL Formula 40 Open 1st CL Class B Proto Jr 1st FF Class B Open let PP Clam C Open HIGH PERFORMANCE * COMPETITION PROVEN * THIN RIGID BLADES QF HARD MAPLE WOOD * SUPERBLY FINISHED COMPLETELY FUEL PROOF SPECIAL PRO SERIES 2 Foe RC-FREE FLIGHT CONTROL LINE DIAPITCHPRICE 5%3489 63489 733%4119 83%45B129 94566% 77139 10467149 106W 8W149 10BEst159 114677% 7% 7% 8159 11BEW169 11%67169 126179 125W179 1356219 145 6249 1556309 164% 6389 5ll WIDE BLADE 6W EXTRA WIDE SERIES 4008 FOR SPEED NG ADVANCED DESIGN ND 1 IN PYLON RACING LEADING SPEED RECORD HOLDER OP ALL TIMES AC PYLON RACING DIA PITCHPR ICE 5%3Y4129 755%6149 7SN 5%N 6N149 8%6%6%7 7%7%189 96%7 7A7%189 CONTROL LINE SPEEO& RACING DIA PITCH PRICE 4%6A7129 4555%129 6788%149 77A1OA11169 899189 89N 9/N189 8%77%189 912 13219 N NARROW model continued interest model itself fullscale prototype looks like some has worn off already Word has Dick Buck now flying Bob Hiseys ships Toledo Weak Signals field Welcome scale Radio Technique/Myers continued page 79 retain well-known highly-regarded Pro-line fine tuning variety servos offered sys tem has PLS-l great gener al purpose size small light enough satisfactory 1/2A racer yet strong enough control piped-60 pattern model older Pro-line servos compatible new system arent obsolete just because newer system being manufactured Which nice way treat customers Some people want lessless weight smaller dimensions Fig 4 shows Kraft satisfying desire 12 oun ces KPS-18 smaller Cannon Mini Like leather upholstery custom-built car servo feels sounds quality its 30000-rpm motor tiny output wheel jewel work art isnt cheap once again get what pay Ive yet see larger servo pre cise its centering balanced its action Bob Aberle proud owner hes feeling good lets look tie ribbon discussion American manufacturers still offer lot quality plenty variety Before buy ing cheapest thing thats offered give Made America serious thought pay what get what get RC Simulates/Akelewicz continued page 22 RC RSPAMs RSPAM 1/Charioteer rimental Wing span 36 diameter Length 48 Weight 7 10 lbs K&B 40 RSPAM 2/AURIGA Private type 4passenger Wing span modified 42 diameter Length 49 Weight 7 11 lbs K&B 40 Supertigre 46 RSPAM 3/AURIGA II Private type two place Wing span modified 36 diameter Length 411/2 Weight 5 9 lbs K&B 40 Fuselage mainframes thin plywood Balsa No land urethane foam contour No 2 3 Wings urethane foam No 1 2 Styrofoam meat tray ribs capstrips No 3 Covering three colored polymer heat-shrink film RC equipment MRC 5-channel No 3 RS Systems 6-channel No 2 Comments welcome SASE would appreciated would like reply RC Scale/Wischers continued page 24 area 165 ounces per sq ft lightly loaded plane Choosing Contest Model collec tion have four WW planes Sopwith 1 Strutter Bristol M-l monoplane Nieuport 27 Nicuport 17 lightly built Sopwith extremely light detailed plane having wing loading 136 ounces per sq ft planes well Douglas have problem high wind because pepetration poor due over-abundance drag worse handling gusts ground turbulence because low wing loadings airplane has light wing loading its stalling speed same less wind velocity diffi cult handle realistically takeoff landing will lift off short run its landings have no roll-out after touching down result re motely realistic leads conclu sion true realism will-o-the-wisp attainable under ideal conditions sel dom found contests Sailplanes because clean aerodynamically usual ly successful overcoming adverse conditions ballast penetration Under ideal conditions World War planes joy fly cannot sensi bly use Nats hoping lucky flight before easy judges know some flight scores may little half what re quired stake 1977 Nats chance represent US next World Championships needed therefore minimize luck element especially true warned beforehand strong wind could expected Riverside during Twin Stik Trainer 19 30-size engines twin has exceptional single-engine per formance proven docile flying character istiCs long-popular Stik series multichannel kits should make Twin Stik Train er easy handle twin can cluded kit two lightweight aluminum engine mounts nylon blocks preformed landing gear molded nylon steerable nose gear bearing hinges etc Span 54 4-channels $4995 Midwest Products Co 400 5 Indiana St Hobart IN 46342 product review product review product review 84 Model Aviation NEWS FLASH Bob Smith Chatsworth CA set new World Speed Record June 19 Pylon mula Ii 125 RevUp 8%-6% new Pylon Rac ing propl Droduct review product review product review
Edition: Model Aviation - 1978/04
Page Numbers: 18, 19, 84
IIOGeorgeMMyers HERE sit typewriter again Christmas over Ive just completed another frustrating session dark room actually its bathroom piece plywood over tub work ing surface Spend some time trying make prints color negatives will gain new appreciation Polaroid believe Anyway radio tells Dollar hit new low December relative Yen Mark guess hobby prices going Right upand-away now contemplat ing purchase new radio system per haps good time take another look Buy American idea Foreign manufacturers have com eting American market basis good quality low prices first re sponse domestic producers cut out frills order meet price proved though American buyer may fickle thing constant. buy quality time current appeal patronage made opposite direction now offer some kind Super System common characteristic offer ings lots control demonstrate approach borrowed Pro-Line Cus tom Competition radio Tony 0 gen ial proprieter Bellmore Hobby 104 Bedford Aye Bellmore NY 11710 shown Fig Pro isnt cheapest item mar ket rising foreign prices talk about first place radio representative path American manufacturers taking compete cheap foreign imports have lot free advertising column al ready second place regular read ers aware fact own op erate 1971 Pro-Line single-stick Com petition Six purchased time became totally fed up glitches other forms interference becoming common 27 MHZ What wanted now system would work time Pro did does Ive replaced batteries some minor parts still works like new Enough testimonial lets see whats new openers get seven channels stead six Very few people ever use five channels its nice know ready scale job will build some day isnt Next find roll button some dual-rate switches dont know what things let give couple examples 1 You flying pattern competition find somewhat difficult get ex actly three axial rolls five seconds Push roll button ailerons will de flect position have previously determined will give exactly three rolls five seconds Now ailerons ta ken care have stir sticks right take care elevator rudder hand 2 You ready enter spin need everything except throttle get started Flip dual-rate switch get what need 3 You up new model controls too sensitive order land beast safely must cut down control responses right now Flip dualrate switch things get comfortable Aside nice-to-have items get unit two extremely smooth all-metal open-gimbal sticks landing-gear switch two auxilliary channel levers play 40-in 9-section antenna stores inside case welcome change unit front panel sports meter marked 0 Low Normal particular unit seems adjusted read full nor mal time dislike rate check RS-RFM shows about 750mw output 25% above old unit enough power handle reasonable flying situation Some other manufacturers have devoted lot attention front panel meter making expandedscale voltmeter tests both transmitter receiver batteries Royal offers timer audio low-voltage alarm Now significant additions feel urge unit lets adjust 14 control functions transmitter 1 Aileron Gain 2 Elevator Gain 3 Rudder Gain 4 Aux Gain 5 Aux 2 Gain controls #1-5 allow set maximum responses named con trols normal mode 6 Retract Up position 7 Retract Down position 8 Throttle Gain DirectionThis 18 Model Aviation Fig 1 Typifying American-made trend 1977 Proline right compared 1971 equipment mirror shows completely new transmitter board has fitted give 14 adjustments along latest electronic design components Thanks iiitegrated circuits receiver servos little smaller lighter reversible control should save little servo-swapping armchang ing 9 Aileron Dual Rate 10 Elevator Dual Rate 11 Rudder Dual Rate controls #9-10 allow set maximum responses named con trols Dual-rate position 12 Aileron Push button trim 13 Elevator Push button trim 14 Throttle Push button trim push down aileron elevator throttle push buttons can adjust fixed control surface deflections produce automatic snap-roll spin last three controls seem like waste time thats mans opinion would like see per mitted competition because ration ale would justify use would also permit tape recorder play pre-re corded routine transmitter coupled Maynard Hills atmos pheric-potential sensing device could lead contests everybody could stay home watch toys play selves television needs Im school believes should learn fly because great pleasure learning deal situation has independent variables great satisfaction learning master yourself can master situation though program computers work its means end end itself bought first Pro-line liked kind thinking provided 3-wire servos time everyone else clinging less-desirable 4-wire types also believe diode-protected bat tery pack responsible way go 1977 Pro has diodes checked Dont wish everyone else did See Fig 2 Another feature becoming com mon interchangeable RF modules Fig 3 shows Pro-Line does transmit ter module held place two screws also hold frequency identifica tion tag exterior case ternal connections made two polarized Deans connectors complete air borne receiver board less decoder out put pigtails similarly interchangeable convenient flipping switch such older Heathkit Kraft sets expect way Continued page 84 April1978 19 Fig 4 Top bottoma 1971 Kraft KPS1O Cannon Supermini Servo Kraft 1977 KPS-18 No dramatic evidence progress can found shown examples Fig 2 printed circuit board diodes plainly visible between batteries Proline continues good idea Fig 3 RF module shown removed its nest top transmitter box placed nearby show its size OUT- PERFORMS ALL OTHERS AT THE 1976 NATIONALS 1st RC Masters Class 1st NC Advanced let NC Novice 1st NC Sport Scale 1st Formula Pylon 1st Quarter Midget Pylon 1st CL Stunt Open 1st CL Stunt Senior 1st CL Stuns Junior 1st CL Combat Op & Sr let CL Slom Comb Op & Sr 1st CL Carrier II Op Jr Sr let CL Carrier Jr & Sr 1st CL Class D Speed Open 1st CL Class C Speed Jr & Sr let CLCIassB Speed Op & Sr let CL Cl Speed Op Sr Jr 1st CL Formula 40 Open 1st CL Class B Proto Jr 1st FF Class B Open let PP Clam C Open HIGH PERFORMANCE * COMPETITION PROVEN * THIN RIGID BLADES QF HARD MAPLE WOOD * SUPERBLY FINISHED COMPLETELY FUEL PROOF SPECIAL PRO SERIES 2 Foe RC-FREE FLIGHT CONTROL LINE DIAPITCHPRICE 5%3489 63489 733%4119 83%45B129 94566% 77139 10467149 106W 8W149 10BEst159 114677% 7% 7% 8159 11BEW169 11%67169 126179 125W179 1356219 145 6249 1556309 164% 6389 5ll WIDE BLADE 6W EXTRA WIDE SERIES 4008 FOR SPEED NG ADVANCED DESIGN ND 1 IN PYLON RACING LEADING SPEED RECORD HOLDER OP ALL TIMES AC PYLON RACING DIA PITCHPR ICE 5%3Y4129 755%6149 7SN 5%N 6N149 8%6%6%7 7%7%189 96%7 7A7%189 CONTROL LINE SPEEO& RACING DIA PITCH PRICE 4%6A7129 4555%129 6788%149 77A1OA11169 899189 89N 9/N189 8%77%189 912 13219 N NARROW model continued interest model itself fullscale prototype looks like some has worn off already Word has Dick Buck now flying Bob Hiseys ships Toledo Weak Signals field Welcome scale Radio Technique/Myers continued page 79 retain well-known highly-regarded Pro-line fine tuning variety servos offered sys tem has PLS-l great gener al purpose size small light enough satisfactory 1/2A racer yet strong enough control piped-60 pattern model older Pro-line servos compatible new system arent obsolete just because newer system being manufactured Which nice way treat customers Some people want lessless weight smaller dimensions Fig 4 shows Kraft satisfying desire 12 oun ces KPS-18 smaller Cannon Mini Like leather upholstery custom-built car servo feels sounds quality its 30000-rpm motor tiny output wheel jewel work art isnt cheap once again get what pay Ive yet see larger servo pre cise its centering balanced its action Bob Aberle proud owner hes feeling good lets look tie ribbon discussion American manufacturers still offer lot quality plenty variety Before buy ing cheapest thing thats offered give Made America serious thought pay what get what get RC Simulates/Akelewicz continued page 22 RC RSPAMs RSPAM 1/Charioteer rimental Wing span 36 diameter Length 48 Weight 7 10 lbs K&B 40 RSPAM 2/AURIGA Private type 4passenger Wing span modified 42 diameter Length 49 Weight 7 11 lbs K&B 40 Supertigre 46 RSPAM 3/AURIGA II Private type two place Wing span modified 36 diameter Length 411/2 Weight 5 9 lbs K&B 40 Fuselage mainframes thin plywood Balsa No land urethane foam contour No 2 3 Wings urethane foam No 1 2 Styrofoam meat tray ribs capstrips No 3 Covering three colored polymer heat-shrink film RC equipment MRC 5-channel No 3 RS Systems 6-channel No 2 Comments welcome SASE would appreciated would like reply RC Scale/Wischers continued page 24 area 165 ounces per sq ft lightly loaded plane Choosing Contest Model collec tion have four WW planes Sopwith 1 Strutter Bristol M-l monoplane Nieuport 27 Nicuport 17 lightly built Sopwith extremely light detailed plane having wing loading 136 ounces per sq ft planes well Douglas have problem high wind because pepetration poor due over-abundance drag worse handling gusts ground turbulence because low wing loadings airplane has light wing loading its stalling speed same less wind velocity diffi cult handle realistically takeoff landing will lift off short run its landings have no roll-out after touching down result re motely realistic leads conclu sion true realism will-o-the-wisp attainable under ideal conditions sel dom found contests Sailplanes because clean aerodynamically usual ly successful overcoming adverse conditions ballast penetration Under ideal conditions World War planes joy fly cannot sensi bly use Nats hoping lucky flight before easy judges know some flight scores may little half what re quired stake 1977 Nats chance represent US next World Championships needed therefore minimize luck element especially true warned beforehand strong wind could expected Riverside during Twin Stik Trainer 19 30-size engines twin has exceptional single-engine per formance proven docile flying character istiCs long-popular Stik series multichannel kits should make Twin Stik Train er easy handle twin can cluded kit two lightweight aluminum engine mounts nylon blocks preformed landing gear molded nylon steerable nose gear bearing hinges etc Span 54 4-channels $4995 Midwest Products Co 400 5 Indiana St Hobart IN 46342 product review product review product review 84 Model Aviation NEWS FLASH Bob Smith Chatsworth CA set new World Speed Record June 19 Pylon mula Ii 125 RevUp 8%-6% new Pylon Rac ing propl Droduct review product review product review