H -r ______________George M Myers WHATS HAPPENING RC frequencies month have received several letters asking about AMA changes RC channel assignments 1986 arent channels have using will continue use 1986 1987 forms modu lation AM FM PCM etc will continue legal proper will continue legal proper through 1991 beyond far anyone knows today 1988 thats two years away will obliged FCC abandon old even-frequency channels 7208 7216 7224 7232 7240 7296 7564 MHz Therefore should have converted old transmitters receivers off old RC channels onto new ones before January 1 1988 Weve urging since January 1983 Now about Frequency Committee meeting Frequency Com mittee met Reston VA November 15 16 Due peculiarities air travel over hour late 52-minute flight clear air result missed Friday night ses sion Therefore Jack Albrecht got stuck task defining new RC ribbon new AMA rule book seems flag numbered tags has damaged some transmitter antennas upset some tempers shared room George P Steiner several meals Jack Albrecht Dave Brown Bill Hershberger Jim Oddi no Warren Plohr com pared notes swapped data got up speed Saturday morning bulk time spent plan adding low-price transmittertesting station AMA booth trade shows like WRAMS show NY Weak Signals show Toledo OH subcommittee charged working out details Saturday afternoons session included long list representatives industry problem areas discussed Saturday evenings session devoted technical topics Look official minutes meetings AMA News section magazine will now dis cuss things think will interest 1 think want know committee appropriated funds pur chase frequency scanner AMA district scanner will held District Frequency Coordinator issued request AMA clubs district anticipate price under $200 per unit bulk purchase based fact Nats Manager Vince Mankowski paid about much units bought 1985 Nats enough clubs individuals show interest acquiring similar units imagine similar bulk buy could worked out AMA HQ through AMA Purchasing Department something AMA Frequency Commit tee chairman pair scanners provided service District II NY NJ simplest rules Two-week loan B Requesting club pays postage both ways C written report procedures findings required expect follow same procedure again procedure hope build documented data base describes interference problems field perfectly honest didnt learn much District II learned scan ners interferences could identify legal normal Perhaps will gather useful information machines circulationand people job AMA tried set up national clearing house interference complaints before using Interference Report Cards pub lished MA June 83 response underwhelming suspect failed because folks lacked ability monitor RC channels interference taking place Until AMA can send out qualified accident investigators way FAA does never will build up decent data base improve thing Use Scanning Monitors may prove first step direction using talents have district build data base helps us solve AMA problems 2 wording RC section 1986-87 AMA rule book reviewed Much discussion ensued matter what should 1988 rule book manufacturers have known since 1982 RC channel numbers plan activate 1988 question something better can answer now can find Frequency Com mittee will continue study alterna tives will make decision will published distributed manu 40 Model Aviation Some very fun things can done imaginative small small-engined airplanes Tom Hunt 1 calls original canard Alternative Howie Applegate R has DH Vampire-like Whizz-Odd Both planes fly very well Oh way small planes cost less build fly use less airspace quieter facturers during 1986 order provide least year lead time support changes will take effect Decem ber 20 1987 now will two things First stick Phase-In Plan second work problem coexis tence AM FM 3 Considerable time spent subject publishing ROC Required Operating Characteristics RC sys tems Frequency Committee can come up suitable ROC present RC manufacturers turn may able design systems will free some problems have discussing column will notice said 4 session manufactur ers heard some people express opinion AMA should have taken did take formal leading posi tion control Non-Aircraft RC frequencies sorts horror stories fears discussed dont recall anything resolved what heard big problem millions RC cars have sold millions will sold year non-aircraft RC frequencies becoming saturated have instances Air craft Only RC frequencies have misapplied same time toy manufacturers have sold millions RC cars robots 27 49 MHz fre quencies concern may soon move 75 MHz fre quencies basic problem working toy manufacturers secretive lot now use 49 MHz fre quencies under 10 mW because can get going through formal FCC Type Acceptance procedure also use 27 MHz under 100 mW same reason Apparently have stayed away 75 MHz channels avoid expensive time-consuming Type Acceptance process suggested hobby manufac turers could everyone favor would voluntarily limit 75 MHz transmit ters 100 mW less should sufficient terrestrial non-flying models restriction would time dispose of interference com plaints beard about FC meeting personal opinion such restriction would good thing concerned since cars boats usually operate closer 100 yards transmitters because its hard operators see beyond distance Based recent test resultssee January 1986 issue MAand upon fact cars boats run perpetually bad 31M en vironment seeing much way glitching believe current receiver performance 20 kHz spacing ade quate terrestrial uses Therefore seems reasonable car boat people start using 30 channels 75 MHz band right now want something lessen interference tween operating locations End opinion main problem Non-Aircraft RC frequency world seems far users have appeared ever anticipated Aside boats cars seeing robots advertising displays remotely-controlled tools like traveling cranes other users appearing Continued page 130 March 1986 41 Whizz-Odd uses OS 1U FS power weighs mere two pounds George reports delightful fly handles like much larger 60-powered plane using lots less airspace Tom Hunt designed Hi-Tech 2001 canard ducted fan plane MA plan No 456 its derivative H-T 2002 Alternative has unmistakable family resemblance although pusher-prop ship ducted fan Power HP 15 Flight performance features high airspeeds sorts maneuvers will climb vertically long air breathe An MA construction article presently planned though features new Fabtronics Mark 3 CDl pointless system Once treat mill system wont settle anything less coupled 4 cycle have Best Two Worlds works equally well 2 cycles twins two cylindars model size engine unit comes pre-drilled disk sensor clamp mounting sensor engine 90 day warranty complete structions conversion timing procedure Unit operates 48 volt low current drain weight mere 2 oz size 2 x 2 x 75 inches Complete system comes ignition coil spark plug on/off switch ignition cable also available seperately Batteries cluded Please state engine size use ordering Converting ignition has ad vantages such tremendous saving fuel less mess no burned-out plugs bet ter idle name few Nearly engine can easily con verted can switch unit plane car boat helicopter another Installation very easy no special tools needed Automatic Spark Advance now available 4 cycle engines Complete system$6995 cash MO Certifed Check plus $300 P & H Personal checks take time clear Illinois residents please add tax Brochure ndable purchase FABTRONICS 375 Isle Royale Rd Galesburg IL 61401 TICK OFF TIMER Now Available 0-20 Seconds Fuel shut off Flood Off Auto rudder function Weight 02 Fuel line included 14 Limited supply EXTRA FUEL UNE TUBINGSO-- ft DIRECT ORDER ONLY Send Cash Check MO COD 83 extrs Calif 6% LENGTH7/ExtraTip *995 APPROX$125 ONE STEEL AND ONE BRASS TIP Send Check Money Order M & W MODELS PO Box 6827 Huntington Beach CA 92615 Add 150 Pont & Hand CA Res add 6% tax suggested method frequency con trol shown AMA rule book page 128 1986-87 book re quires insert AMA member ship card pocket frequency control board remove fre quency control clip must possession before turn trans mitter concerned about losing AMA cards system could amended permit using copy cards lieu originals prerequisite flying partic ular field membership club system identifying paid-up members used Northern Virginia RC Club worth considering Upon payment nual dues club issues colored stickers attachment members transmitters color changes year year issue printed stickers Proof AMA membership has provided NVRC members renew club memberships So presence appro priate sticker members transmitter signifies both current club AMA membership quick check trans mitter impound rack flying field readily identifies delinquent dues payment Servo-screw integrity few issues ago ran letter Peter Young alleged use self-tapping screws hold together two halves servo cases good practice may work loose because engine vibration during flight Another reader Jay Stevens has formed too experienced problem like Peter now uses dab epoxy screws prevent loosening As alternative epoxy Glen Grady Port St Lucie FL suggests using finger nail polish Glen has successfully used nail polish secure screws cameras used record data jet engines full-scale aircraft thinks nail polish will just effective epoxy securing servo screws will permit easier sqrew removal should servo need disassembled servicing Electric starters Before signing off month word caution use electric starters engines equipped spinner also comes Glen Grady witnessed acci dent fellow club member visit hospital have piece pro peller removed chest mod eler attempting start 40-size four-stroke equipped wooden prop no spinner Glen did state whether prop secured AMA prop nut letter described what happened follows starter used con stantly would spin off-center throwing rubber cone starter out just happened did time cone flew out engine fired up throttle wide open plane lurched forward starter because cone come out vibration starter spinnerless prop loosened grip airplane prop hit starter shattered sending piece wood chest about half inch Fortunately modeler inci dent seriously injured Neverthe less Glen suggests starters should used engine unless spinner used never start engine throttle wide open have add latter tip applies throttle-equipped engines Free Flight Power Control Line modelers careful Have safe month John Preston 12235 Tilden wood Dr Rockvile MD 20852 Radio Technique/Myers Continued page 41 Non-Aircraft band Now AMA anyone matter supposed go about organizing such diverse group what purpose agreed call meeting upcoming Toledo show industry special-interest groups eg cars boats discuss frequency problems 5 In technical session discus130 Model Aviation fl7HAMMER QUADRA-SCALE PzL P-23A KARAS Poish econ ard lgh bomber 95 rise lev0 ece pior erg t zrarrel obeai05 FII-sze pints 53h 00 ObrAOaid r U S Corn Io reassal ,zlOed LARRY GORDON 2sh0 GOLDEN SHORES CT FENTON MICH 48430 343 629-5786 JOHN TATONE 164 School St City CA 94014 4157563400 Matched Performance System TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELSK&B GLOW PLUGS B Blends4 Cheices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER FOXY THINNER K&B SUPER POXY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS sion centered third-order intermodula tion interference 31M considered test data presented George Steiner receivers Bill Hershberger transmit ters team Myers Aberle field tests both transmitters receivers have already seen Aberle/Myers data Radio Tech nique January February 1986 Flying Models magazine take Subsequent Frequency Commit tee meeting Bob Aberle went back field examine second-order product interference 20P question closely some thought passed off too easily Well can now report based much de tailed elaborate set tests find current crop receivers both AM FM single- dual-conversion have designed very nicely resist 20P less problem adjacent-channel interference 20 kHz raster far less important 31M George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 RC Soaring/Pruss Continued page 47 along Gregg Seydel Scott Christ ensen Top Flite Models offered tricks trade under topic Contest Strategies Along above swap session socializingWisconsin style table clinics socializingWis consin style bull sessions socializ ingWisconsin style cost $15and included buffet lunch Saturday made contest cir cuit banquets look like Lenten fast days So can see fit Madison next Novembers first weekend can sure youll spend finest modeling get-togethers ever Never mind about eight inches snow fell programmed Dr Walt Good didnt think just going have drive country during trek up Florida Now some gadgets Leon Kincaid excellent designer builder see Scooter plans October 1983 issue Model Aviation has clever way getting airtight fit between wing roots fuselage Its also good secur ing wing halves matter Forget about tape idea does take bit building finesse job worth doing worth doing well During wing construction besides main wing joiners alignment tubes Leon installs second set tubes just behind main wing joiner shown photo Location critical tubing diameters arent either However larger diameters tubing better Notice saying diameters because key system fact wing tube telescopes other Which wing has larger tube isnt critical either Small holes carefully drilled wing tubes elongated slightly direction wingspan After wings joined fuselage flat steel tapered pin narrow end matches drilled holes insert ed forced holes As pin forced wing halves snugged up fuselage Nice Soaring Products Thermal Sniffler has production last 15 years now being manufactured distributed Ace R/C Inc no changes fine product ever receiver offered uses ear plug monitor Snifflers signal isnt bad arrangement tran quil summer afternoon However times loudspeaker would serve better others could listen insuch during LSF long-distance tasks cross-country flying teamwork important factor Jack Hiner found need such modification cir cuit parts list presented parts list end column Gregg Seydel has come up idea stabilizing stabilizerswell driven bellcrank up vertical fin anyway usual technique use bearing made brass tubing Continued page 135 6 NYRSeEB cm MACHE THE LEADER IN COMPETITION PROPELLERS NEW THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTO GIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALLTHE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW K DIAPITCH THP 126677/,8 13677/8 14677/8 1567 16678 NEW PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION lOTO 20% INCREASE IN THRUST MPG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 53/34 149 634149 72833456179 83344568189 8/4566/7 199 94566h77/ 199 104566/7 209 106W8W209 106EW219 114677A7A78229 115W229 IiSEW239 1167239 124W 279 125W 279 1256 279 1356 349 1458 459 1556 659 164/N989 16678 969 RC PYLON RACING SERIES 500 DIA PITCH PRICE 7SN 5/N279 8I 6/7/,7A8 299 SERIES 400C 86677/7289 9777/289 W WIDE BLADE EW EXTRA WIDE N NARROW March 1986 131 PRICE 299 379 479 689 989
Edition: Model Aviation - 1986/03
Page Numbers: 40, 41, 130, 131
H -r ______________George M Myers WHATS HAPPENING RC frequencies month have received several letters asking about AMA changes RC channel assignments 1986 arent channels have using will continue use 1986 1987 forms modu lation AM FM PCM etc will continue legal proper will continue legal proper through 1991 beyond far anyone knows today 1988 thats two years away will obliged FCC abandon old even-frequency channels 7208 7216 7224 7232 7240 7296 7564 MHz Therefore should have converted old transmitters receivers off old RC channels onto new ones before January 1 1988 Weve urging since January 1983 Now about Frequency Committee meeting Frequency Com mittee met Reston VA November 15 16 Due peculiarities air travel over hour late 52-minute flight clear air result missed Friday night ses sion Therefore Jack Albrecht got stuck task defining new RC ribbon new AMA rule book seems flag numbered tags has damaged some transmitter antennas upset some tempers shared room George P Steiner several meals Jack Albrecht Dave Brown Bill Hershberger Jim Oddi no Warren Plohr com pared notes swapped data got up speed Saturday morning bulk time spent plan adding low-price transmittertesting station AMA booth trade shows like WRAMS show NY Weak Signals show Toledo OH subcommittee charged working out details Saturday afternoons session included long list representatives industry problem areas discussed Saturday evenings session devoted technical topics Look official minutes meetings AMA News section magazine will now dis cuss things think will interest 1 think want know committee appropriated funds pur chase frequency scanner AMA district scanner will held District Frequency Coordinator issued request AMA clubs district anticipate price under $200 per unit bulk purchase based fact Nats Manager Vince Mankowski paid about much units bought 1985 Nats enough clubs individuals show interest acquiring similar units imagine similar bulk buy could worked out AMA HQ through AMA Purchasing Department something AMA Frequency Commit tee chairman pair scanners provided service District II NY NJ simplest rules Two-week loan B Requesting club pays postage both ways C written report procedures findings required expect follow same procedure again procedure hope build documented data base describes interference problems field perfectly honest didnt learn much District II learned scan ners interferences could identify legal normal Perhaps will gather useful information machines circulationand people job AMA tried set up national clearing house interference complaints before using Interference Report Cards pub lished MA June 83 response underwhelming suspect failed because folks lacked ability monitor RC channels interference taking place Until AMA can send out qualified accident investigators way FAA does never will build up decent data base improve thing Use Scanning Monitors may prove first step direction using talents have district build data base helps us solve AMA problems 2 wording RC section 1986-87 AMA rule book reviewed Much discussion ensued matter what should 1988 rule book manufacturers have known since 1982 RC channel numbers plan activate 1988 question something better can answer now can find Frequency Com mittee will continue study alterna tives will make decision will published distributed manu 40 Model Aviation Some very fun things can done imaginative small small-engined airplanes Tom Hunt 1 calls original canard Alternative Howie Applegate R has DH Vampire-like Whizz-Odd Both planes fly very well Oh way small planes cost less build fly use less airspace quieter facturers during 1986 order provide least year lead time support changes will take effect Decem ber 20 1987 now will two things First stick Phase-In Plan second work problem coexis tence AM FM 3 Considerable time spent subject publishing ROC Required Operating Characteristics RC sys tems Frequency Committee can come up suitable ROC present RC manufacturers turn may able design systems will free some problems have discussing column will notice said 4 session manufactur ers heard some people express opinion AMA should have taken did take formal leading posi tion control Non-Aircraft RC frequencies sorts horror stories fears discussed dont recall anything resolved what heard big problem millions RC cars have sold millions will sold year non-aircraft RC frequencies becoming saturated have instances Air craft Only RC frequencies have misapplied same time toy manufacturers have sold millions RC cars robots 27 49 MHz fre quencies concern may soon move 75 MHz fre quencies basic problem working toy manufacturers secretive lot now use 49 MHz fre quencies under 10 mW because can get going through formal FCC Type Acceptance procedure also use 27 MHz under 100 mW same reason Apparently have stayed away 75 MHz channels avoid expensive time-consuming Type Acceptance process suggested hobby manufac turers could everyone favor would voluntarily limit 75 MHz transmit ters 100 mW less should sufficient terrestrial non-flying models restriction would time dispose of interference com plaints beard about FC meeting personal opinion such restriction would good thing concerned since cars boats usually operate closer 100 yards transmitters because its hard operators see beyond distance Based recent test resultssee January 1986 issue MAand upon fact cars boats run perpetually bad 31M en vironment seeing much way glitching believe current receiver performance 20 kHz spacing ade quate terrestrial uses Therefore seems reasonable car boat people start using 30 channels 75 MHz band right now want something lessen interference tween operating locations End opinion main problem Non-Aircraft RC frequency world seems far users have appeared ever anticipated Aside boats cars seeing robots advertising displays remotely-controlled tools like traveling cranes other users appearing Continued page 130 March 1986 41 Whizz-Odd uses OS 1U FS power weighs mere two pounds George reports delightful fly handles like much larger 60-powered plane using lots less airspace Tom Hunt designed Hi-Tech 2001 canard ducted fan plane MA plan No 456 its derivative H-T 2002 Alternative has unmistakable family resemblance although pusher-prop ship ducted fan Power HP 15 Flight performance features high airspeeds sorts maneuvers will climb vertically long air breathe An MA construction article presently planned though features new Fabtronics Mark 3 CDl pointless system Once treat mill system wont settle anything less coupled 4 cycle have Best Two Worlds works equally well 2 cycles twins two cylindars model size engine unit comes pre-drilled disk sensor clamp mounting sensor engine 90 day warranty complete structions conversion timing procedure Unit operates 48 volt low current drain weight mere 2 oz size 2 x 2 x 75 inches Complete system comes ignition coil spark plug on/off switch ignition cable also available seperately Batteries cluded Please state engine size use ordering Converting ignition has ad vantages such tremendous saving fuel less mess no burned-out plugs bet ter idle name few Nearly engine can easily con verted can switch unit plane car boat helicopter another Installation very easy no special tools needed Automatic Spark Advance now available 4 cycle engines Complete system$6995 cash MO Certifed Check plus $300 P & H Personal checks take time clear Illinois residents please add tax Brochure ndable purchase FABTRONICS 375 Isle Royale Rd Galesburg IL 61401 TICK OFF TIMER Now Available 0-20 Seconds Fuel shut off Flood Off Auto rudder function Weight 02 Fuel line included 14 Limited supply EXTRA FUEL UNE TUBINGSO-- ft DIRECT ORDER ONLY Send Cash Check MO COD 83 extrs Calif 6% LENGTH7/ExtraTip *995 APPROX$125 ONE STEEL AND ONE BRASS TIP Send Check Money Order M & W MODELS PO Box 6827 Huntington Beach CA 92615 Add 150 Pont & Hand CA Res add 6% tax suggested method frequency con trol shown AMA rule book page 128 1986-87 book re quires insert AMA member ship card pocket frequency control board remove fre quency control clip must possession before turn trans mitter concerned about losing AMA cards system could amended permit using copy cards lieu originals prerequisite flying partic ular field membership club system identifying paid-up members used Northern Virginia RC Club worth considering Upon payment nual dues club issues colored stickers attachment members transmitters color changes year year issue printed stickers Proof AMA membership has provided NVRC members renew club memberships So presence appro priate sticker members transmitter signifies both current club AMA membership quick check trans mitter impound rack flying field readily identifies delinquent dues payment Servo-screw integrity few issues ago ran letter Peter Young alleged use self-tapping screws hold together two halves servo cases good practice may work loose because engine vibration during flight Another reader Jay Stevens has formed too experienced problem like Peter now uses dab epoxy screws prevent loosening As alternative epoxy Glen Grady Port St Lucie FL suggests using finger nail polish Glen has successfully used nail polish secure screws cameras used record data jet engines full-scale aircraft thinks nail polish will just effective epoxy securing servo screws will permit easier sqrew removal should servo need disassembled servicing Electric starters Before signing off month word caution use electric starters engines equipped spinner also comes Glen Grady witnessed acci dent fellow club member visit hospital have piece pro peller removed chest mod eler attempting start 40-size four-stroke equipped wooden prop no spinner Glen did state whether prop secured AMA prop nut letter described what happened follows starter used con stantly would spin off-center throwing rubber cone starter out just happened did time cone flew out engine fired up throttle wide open plane lurched forward starter because cone come out vibration starter spinnerless prop loosened grip airplane prop hit starter shattered sending piece wood chest about half inch Fortunately modeler inci dent seriously injured Neverthe less Glen suggests starters should used engine unless spinner used never start engine throttle wide open have add latter tip applies throttle-equipped engines Free Flight Power Control Line modelers careful Have safe month John Preston 12235 Tilden wood Dr Rockvile MD 20852 Radio Technique/Myers Continued page 41 Non-Aircraft band Now AMA anyone matter supposed go about organizing such diverse group what purpose agreed call meeting upcoming Toledo show industry special-interest groups eg cars boats discuss frequency problems 5 In technical session discus130 Model Aviation fl7HAMMER QUADRA-SCALE PzL P-23A KARAS Poish econ ard lgh bomber 95 rise lev0 ece pior erg t zrarrel obeai05 FII-sze pints 53h 00 ObrAOaid r U S Corn Io reassal ,zlOed LARRY GORDON 2sh0 GOLDEN SHORES CT FENTON MICH 48430 343 629-5786 JOHN TATONE 164 School St City CA 94014 4157563400 Matched Performance System TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELSK&B GLOW PLUGS B Blends4 Cheices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER FOXY THINNER K&B SUPER POXY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS sion centered third-order intermodula tion interference 31M considered test data presented George Steiner receivers Bill Hershberger transmit ters team Myers Aberle field tests both transmitters receivers have already seen Aberle/Myers data Radio Tech nique January February 1986 Flying Models magazine take Subsequent Frequency Commit tee meeting Bob Aberle went back field examine second-order product interference 20P question closely some thought passed off too easily Well can now report based much de tailed elaborate set tests find current crop receivers both AM FM single- dual-conversion have designed very nicely resist 20P less problem adjacent-channel interference 20 kHz raster far less important 31M George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 RC Soaring/Pruss Continued page 47 along Gregg Seydel Scott Christ ensen Top Flite Models offered tricks trade under topic Contest Strategies Along above swap session socializingWisconsin style table clinics socializingWis consin style bull sessions socializ ingWisconsin style cost $15and included buffet lunch Saturday made contest cir cuit banquets look like Lenten fast days So can see fit Madison next Novembers first weekend can sure youll spend finest modeling get-togethers ever Never mind about eight inches snow fell programmed Dr Walt Good didnt think just going have drive country during trek up Florida Now some gadgets Leon Kincaid excellent designer builder see Scooter plans October 1983 issue Model Aviation has clever way getting airtight fit between wing roots fuselage Its also good secur ing wing halves matter Forget about tape idea does take bit building finesse job worth doing worth doing well During wing construction besides main wing joiners alignment tubes Leon installs second set tubes just behind main wing joiner shown photo Location critical tubing diameters arent either However larger diameters tubing better Notice saying diameters because key system fact wing tube telescopes other Which wing has larger tube isnt critical either Small holes carefully drilled wing tubes elongated slightly direction wingspan After wings joined fuselage flat steel tapered pin narrow end matches drilled holes insert ed forced holes As pin forced wing halves snugged up fuselage Nice Soaring Products Thermal Sniffler has production last 15 years now being manufactured distributed Ace R/C Inc no changes fine product ever receiver offered uses ear plug monitor Snifflers signal isnt bad arrangement tran quil summer afternoon However times loudspeaker would serve better others could listen insuch during LSF long-distance tasks cross-country flying teamwork important factor Jack Hiner found need such modification cir cuit parts list presented parts list end column Gregg Seydel has come up idea stabilizing stabilizerswell driven bellcrank up vertical fin anyway usual technique use bearing made brass tubing Continued page 135 6 NYRSeEB cm MACHE THE LEADER IN COMPETITION PROPELLERS NEW THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTO GIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALLTHE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW K DIAPITCH THP 126677/,8 13677/8 14677/8 1567 16678 NEW PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION lOTO 20% INCREASE IN THRUST MPG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 53/34 149 634149 72833456179 83344568189 8/4566/7 199 94566h77/ 199 104566/7 209 106W8W209 106EW219 114677A7A78229 115W229 IiSEW239 1167239 124W 279 125W 279 1256 279 1356 349 1458 459 1556 659 164/N989 16678 969 RC PYLON RACING SERIES 500 DIA PITCH PRICE 7SN 5/N279 8I 6/7/,7A8 299 SERIES 400C 86677/7289 9777/289 W WIDE BLADE EW EXTRA WIDE N NARROW March 1986 131 PRICE 299 379 479 689 989
Edition: Model Aviation - 1986/03
Page Numbers: 40, 41, 130, 131
H -r ______________George M Myers WHATS HAPPENING RC frequencies month have received several letters asking about AMA changes RC channel assignments 1986 arent channels have using will continue use 1986 1987 forms modu lation AM FM PCM etc will continue legal proper will continue legal proper through 1991 beyond far anyone knows today 1988 thats two years away will obliged FCC abandon old even-frequency channels 7208 7216 7224 7232 7240 7296 7564 MHz Therefore should have converted old transmitters receivers off old RC channels onto new ones before January 1 1988 Weve urging since January 1983 Now about Frequency Committee meeting Frequency Com mittee met Reston VA November 15 16 Due peculiarities air travel over hour late 52-minute flight clear air result missed Friday night ses sion Therefore Jack Albrecht got stuck task defining new RC ribbon new AMA rule book seems flag numbered tags has damaged some transmitter antennas upset some tempers shared room George P Steiner several meals Jack Albrecht Dave Brown Bill Hershberger Jim Oddi no Warren Plohr com pared notes swapped data got up speed Saturday morning bulk time spent plan adding low-price transmittertesting station AMA booth trade shows like WRAMS show NY Weak Signals show Toledo OH subcommittee charged working out details Saturday afternoons session included long list representatives industry problem areas discussed Saturday evenings session devoted technical topics Look official minutes meetings AMA News section magazine will now dis cuss things think will interest 1 think want know committee appropriated funds pur chase frequency scanner AMA district scanner will held District Frequency Coordinator issued request AMA clubs district anticipate price under $200 per unit bulk purchase based fact Nats Manager Vince Mankowski paid about much units bought 1985 Nats enough clubs individuals show interest acquiring similar units imagine similar bulk buy could worked out AMA HQ through AMA Purchasing Department something AMA Frequency Commit tee chairman pair scanners provided service District II NY NJ simplest rules Two-week loan B Requesting club pays postage both ways C written report procedures findings required expect follow same procedure again procedure hope build documented data base describes interference problems field perfectly honest didnt learn much District II learned scan ners interferences could identify legal normal Perhaps will gather useful information machines circulationand people job AMA tried set up national clearing house interference complaints before using Interference Report Cards pub lished MA June 83 response underwhelming suspect failed because folks lacked ability monitor RC channels interference taking place Until AMA can send out qualified accident investigators way FAA does never will build up decent data base improve thing Use Scanning Monitors may prove first step direction using talents have district build data base helps us solve AMA problems 2 wording RC section 1986-87 AMA rule book reviewed Much discussion ensued matter what should 1988 rule book manufacturers have known since 1982 RC channel numbers plan activate 1988 question something better can answer now can find Frequency Com mittee will continue study alterna tives will make decision will published distributed manu 40 Model Aviation Some very fun things can done imaginative small small-engined airplanes Tom Hunt 1 calls original canard Alternative Howie Applegate R has DH Vampire-like Whizz-Odd Both planes fly very well Oh way small planes cost less build fly use less airspace quieter facturers during 1986 order provide least year lead time support changes will take effect Decem ber 20 1987 now will two things First stick Phase-In Plan second work problem coexis tence AM FM 3 Considerable time spent subject publishing ROC Required Operating Characteristics RC sys tems Frequency Committee can come up suitable ROC present RC manufacturers turn may able design systems will free some problems have discussing column will notice said 4 session manufactur ers heard some people express opinion AMA should have taken did take formal leading posi tion control Non-Aircraft RC frequencies sorts horror stories fears discussed dont recall anything resolved what heard big problem millions RC cars have sold millions will sold year non-aircraft RC frequencies becoming saturated have instances Air craft Only RC frequencies have misapplied same time toy manufacturers have sold millions RC cars robots 27 49 MHz fre quencies concern may soon move 75 MHz fre quencies basic problem working toy manufacturers secretive lot now use 49 MHz fre quencies under 10 mW because can get going through formal FCC Type Acceptance procedure also use 27 MHz under 100 mW same reason Apparently have stayed away 75 MHz channels avoid expensive time-consuming Type Acceptance process suggested hobby manufac turers could everyone favor would voluntarily limit 75 MHz transmit ters 100 mW less should sufficient terrestrial non-flying models restriction would time dispose of interference com plaints beard about FC meeting personal opinion such restriction would good thing concerned since cars boats usually operate closer 100 yards transmitters because its hard operators see beyond distance Based recent test resultssee January 1986 issue MAand upon fact cars boats run perpetually bad 31M en vironment seeing much way glitching believe current receiver performance 20 kHz spacing ade quate terrestrial uses Therefore seems reasonable car boat people start using 30 channels 75 MHz band right now want something lessen interference tween operating locations End opinion main problem Non-Aircraft RC frequency world seems far users have appeared ever anticipated Aside boats cars seeing robots advertising displays remotely-controlled tools like traveling cranes other users appearing Continued page 130 March 1986 41 Whizz-Odd uses OS 1U FS power weighs mere two pounds George reports delightful fly handles like much larger 60-powered plane using lots less airspace Tom Hunt designed Hi-Tech 2001 canard ducted fan plane MA plan No 456 its derivative H-T 2002 Alternative has unmistakable family resemblance although pusher-prop ship ducted fan Power HP 15 Flight performance features high airspeeds sorts maneuvers will climb vertically long air breathe An MA construction article presently planned though features new Fabtronics Mark 3 CDl pointless system Once treat mill system wont settle anything less coupled 4 cycle have Best Two Worlds works equally well 2 cycles twins two cylindars model size engine unit comes pre-drilled disk sensor clamp mounting sensor engine 90 day warranty complete structions conversion timing procedure Unit operates 48 volt low current drain weight mere 2 oz size 2 x 2 x 75 inches Complete system comes ignition coil spark plug on/off switch ignition cable also available seperately Batteries cluded Please state engine size use ordering Converting ignition has ad vantages such tremendous saving fuel less mess no burned-out plugs bet ter idle name few Nearly engine can easily con verted can switch unit plane car boat helicopter another Installation very easy no special tools needed Automatic Spark Advance now available 4 cycle engines Complete system$6995 cash MO Certifed Check plus $300 P & H Personal checks take time clear Illinois residents please add tax Brochure ndable purchase FABTRONICS 375 Isle Royale Rd Galesburg IL 61401 TICK OFF TIMER Now Available 0-20 Seconds Fuel shut off Flood Off Auto rudder function Weight 02 Fuel line included 14 Limited supply EXTRA FUEL UNE TUBINGSO-- ft DIRECT ORDER ONLY Send Cash Check MO COD 83 extrs Calif 6% LENGTH7/ExtraTip *995 APPROX$125 ONE STEEL AND ONE BRASS TIP Send Check Money Order M & W MODELS PO Box 6827 Huntington Beach CA 92615 Add 150 Pont & Hand CA Res add 6% tax suggested method frequency con trol shown AMA rule book page 128 1986-87 book re quires insert AMA member ship card pocket frequency control board remove fre quency control clip must possession before turn trans mitter concerned about losing AMA cards system could amended permit using copy cards lieu originals prerequisite flying partic ular field membership club system identifying paid-up members used Northern Virginia RC Club worth considering Upon payment nual dues club issues colored stickers attachment members transmitters color changes year year issue printed stickers Proof AMA membership has provided NVRC members renew club memberships So presence appro priate sticker members transmitter signifies both current club AMA membership quick check trans mitter impound rack flying field readily identifies delinquent dues payment Servo-screw integrity few issues ago ran letter Peter Young alleged use self-tapping screws hold together two halves servo cases good practice may work loose because engine vibration during flight Another reader Jay Stevens has formed too experienced problem like Peter now uses dab epoxy screws prevent loosening As alternative epoxy Glen Grady Port St Lucie FL suggests using finger nail polish Glen has successfully used nail polish secure screws cameras used record data jet engines full-scale aircraft thinks nail polish will just effective epoxy securing servo screws will permit easier sqrew removal should servo need disassembled servicing Electric starters Before signing off month word caution use electric starters engines equipped spinner also comes Glen Grady witnessed acci dent fellow club member visit hospital have piece pro peller removed chest mod eler attempting start 40-size four-stroke equipped wooden prop no spinner Glen did state whether prop secured AMA prop nut letter described what happened follows starter used con stantly would spin off-center throwing rubber cone starter out just happened did time cone flew out engine fired up throttle wide open plane lurched forward starter because cone come out vibration starter spinnerless prop loosened grip airplane prop hit starter shattered sending piece wood chest about half inch Fortunately modeler inci dent seriously injured Neverthe less Glen suggests starters should used engine unless spinner used never start engine throttle wide open have add latter tip applies throttle-equipped engines Free Flight Power Control Line modelers careful Have safe month John Preston 12235 Tilden wood Dr Rockvile MD 20852 Radio Technique/Myers Continued page 41 Non-Aircraft band Now AMA anyone matter supposed go about organizing such diverse group what purpose agreed call meeting upcoming Toledo show industry special-interest groups eg cars boats discuss frequency problems 5 In technical session discus130 Model Aviation fl7HAMMER QUADRA-SCALE PzL P-23A KARAS Poish econ ard lgh bomber 95 rise lev0 ece pior erg t zrarrel obeai05 FII-sze pints 53h 00 ObrAOaid r U S Corn Io reassal ,zlOed LARRY GORDON 2sh0 GOLDEN SHORES CT FENTON MICH 48430 343 629-5786 JOHN TATONE 164 School St City CA 94014 4157563400 Matched Performance System TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELSK&B GLOW PLUGS B Blends4 Cheices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER FOXY THINNER K&B SUPER POXY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS sion centered third-order intermodula tion interference 31M considered test data presented George Steiner receivers Bill Hershberger transmit ters team Myers Aberle field tests both transmitters receivers have already seen Aberle/Myers data Radio Tech nique January February 1986 Flying Models magazine take Subsequent Frequency Commit tee meeting Bob Aberle went back field examine second-order product interference 20P question closely some thought passed off too easily Well can now report based much de tailed elaborate set tests find current crop receivers both AM FM single- dual-conversion have designed very nicely resist 20P less problem adjacent-channel interference 20 kHz raster far less important 31M George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 RC Soaring/Pruss Continued page 47 along Gregg Seydel Scott Christ ensen Top Flite Models offered tricks trade under topic Contest Strategies Along above swap session socializingWisconsin style table clinics socializingWis consin style bull sessions socializ ingWisconsin style cost $15and included buffet lunch Saturday made contest cir cuit banquets look like Lenten fast days So can see fit Madison next Novembers first weekend can sure youll spend finest modeling get-togethers ever Never mind about eight inches snow fell programmed Dr Walt Good didnt think just going have drive country during trek up Florida Now some gadgets Leon Kincaid excellent designer builder see Scooter plans October 1983 issue Model Aviation has clever way getting airtight fit between wing roots fuselage Its also good secur ing wing halves matter Forget about tape idea does take bit building finesse job worth doing worth doing well During wing construction besides main wing joiners alignment tubes Leon installs second set tubes just behind main wing joiner shown photo Location critical tubing diameters arent either However larger diameters tubing better Notice saying diameters because key system fact wing tube telescopes other Which wing has larger tube isnt critical either Small holes carefully drilled wing tubes elongated slightly direction wingspan After wings joined fuselage flat steel tapered pin narrow end matches drilled holes insert ed forced holes As pin forced wing halves snugged up fuselage Nice Soaring Products Thermal Sniffler has production last 15 years now being manufactured distributed Ace R/C Inc no changes fine product ever receiver offered uses ear plug monitor Snifflers signal isnt bad arrangement tran quil summer afternoon However times loudspeaker would serve better others could listen insuch during LSF long-distance tasks cross-country flying teamwork important factor Jack Hiner found need such modification cir cuit parts list presented parts list end column Gregg Seydel has come up idea stabilizing stabilizerswell driven bellcrank up vertical fin anyway usual technique use bearing made brass tubing Continued page 135 6 NYRSeEB cm MACHE THE LEADER IN COMPETITION PROPELLERS NEW THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTO GIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALLTHE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW K DIAPITCH THP 126677/,8 13677/8 14677/8 1567 16678 NEW PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION lOTO 20% INCREASE IN THRUST MPG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 53/34 149 634149 72833456179 83344568189 8/4566/7 199 94566h77/ 199 104566/7 209 106W8W209 106EW219 114677A7A78229 115W229 IiSEW239 1167239 124W 279 125W 279 1256 279 1356 349 1458 459 1556 659 164/N989 16678 969 RC PYLON RACING SERIES 500 DIA PITCH PRICE 7SN 5/N279 8I 6/7/,7A8 299 SERIES 400C 86677/7289 9777/289 W WIDE BLADE EW EXTRA WIDE N NARROW March 1986 131 PRICE 299 379 479 689 989
Edition: Model Aviation - 1986/03
Page Numbers: 40, 41, 130, 131
H -r ______________George M Myers WHATS HAPPENING RC frequencies month have received several letters asking about AMA changes RC channel assignments 1986 arent channels have using will continue use 1986 1987 forms modu lation AM FM PCM etc will continue legal proper will continue legal proper through 1991 beyond far anyone knows today 1988 thats two years away will obliged FCC abandon old even-frequency channels 7208 7216 7224 7232 7240 7296 7564 MHz Therefore should have converted old transmitters receivers off old RC channels onto new ones before January 1 1988 Weve urging since January 1983 Now about Frequency Committee meeting Frequency Com mittee met Reston VA November 15 16 Due peculiarities air travel over hour late 52-minute flight clear air result missed Friday night ses sion Therefore Jack Albrecht got stuck task defining new RC ribbon new AMA rule book seems flag numbered tags has damaged some transmitter antennas upset some tempers shared room George P Steiner several meals Jack Albrecht Dave Brown Bill Hershberger Jim Oddi no Warren Plohr com pared notes swapped data got up speed Saturday morning bulk time spent plan adding low-price transmittertesting station AMA booth trade shows like WRAMS show NY Weak Signals show Toledo OH subcommittee charged working out details Saturday afternoons session included long list representatives industry problem areas discussed Saturday evenings session devoted technical topics Look official minutes meetings AMA News section magazine will now dis cuss things think will interest 1 think want know committee appropriated funds pur chase frequency scanner AMA district scanner will held District Frequency Coordinator issued request AMA clubs district anticipate price under $200 per unit bulk purchase based fact Nats Manager Vince Mankowski paid about much units bought 1985 Nats enough clubs individuals show interest acquiring similar units imagine similar bulk buy could worked out AMA HQ through AMA Purchasing Department something AMA Frequency Commit tee chairman pair scanners provided service District II NY NJ simplest rules Two-week loan B Requesting club pays postage both ways C written report procedures findings required expect follow same procedure again procedure hope build documented data base describes interference problems field perfectly honest didnt learn much District II learned scan ners interferences could identify legal normal Perhaps will gather useful information machines circulationand people job AMA tried set up national clearing house interference complaints before using Interference Report Cards pub lished MA June 83 response underwhelming suspect failed because folks lacked ability monitor RC channels interference taking place Until AMA can send out qualified accident investigators way FAA does never will build up decent data base improve thing Use Scanning Monitors may prove first step direction using talents have district build data base helps us solve AMA problems 2 wording RC section 1986-87 AMA rule book reviewed Much discussion ensued matter what should 1988 rule book manufacturers have known since 1982 RC channel numbers plan activate 1988 question something better can answer now can find Frequency Com mittee will continue study alterna tives will make decision will published distributed manu 40 Model Aviation Some very fun things can done imaginative small small-engined airplanes Tom Hunt 1 calls original canard Alternative Howie Applegate R has DH Vampire-like Whizz-Odd Both planes fly very well Oh way small planes cost less build fly use less airspace quieter facturers during 1986 order provide least year lead time support changes will take effect Decem ber 20 1987 now will two things First stick Phase-In Plan second work problem coexis tence AM FM 3 Considerable time spent subject publishing ROC Required Operating Characteristics RC sys tems Frequency Committee can come up suitable ROC present RC manufacturers turn may able design systems will free some problems have discussing column will notice said 4 session manufactur ers heard some people express opinion AMA should have taken did take formal leading posi tion control Non-Aircraft RC frequencies sorts horror stories fears discussed dont recall anything resolved what heard big problem millions RC cars have sold millions will sold year non-aircraft RC frequencies becoming saturated have instances Air craft Only RC frequencies have misapplied same time toy manufacturers have sold millions RC cars robots 27 49 MHz fre quencies concern may soon move 75 MHz fre quencies basic problem working toy manufacturers secretive lot now use 49 MHz fre quencies under 10 mW because can get going through formal FCC Type Acceptance procedure also use 27 MHz under 100 mW same reason Apparently have stayed away 75 MHz channels avoid expensive time-consuming Type Acceptance process suggested hobby manufac turers could everyone favor would voluntarily limit 75 MHz transmit ters 100 mW less should sufficient terrestrial non-flying models restriction would time dispose of interference com plaints beard about FC meeting personal opinion such restriction would good thing concerned since cars boats usually operate closer 100 yards transmitters because its hard operators see beyond distance Based recent test resultssee January 1986 issue MAand upon fact cars boats run perpetually bad 31M en vironment seeing much way glitching believe current receiver performance 20 kHz spacing ade quate terrestrial uses Therefore seems reasonable car boat people start using 30 channels 75 MHz band right now want something lessen interference tween operating locations End opinion main problem Non-Aircraft RC frequency world seems far users have appeared ever anticipated Aside boats cars seeing robots advertising displays remotely-controlled tools like traveling cranes other users appearing Continued page 130 March 1986 41 Whizz-Odd uses OS 1U FS power weighs mere two pounds George reports delightful fly handles like much larger 60-powered plane using lots less airspace Tom Hunt designed Hi-Tech 2001 canard ducted fan plane MA plan No 456 its derivative H-T 2002 Alternative has unmistakable family resemblance although pusher-prop ship ducted fan Power HP 15 Flight performance features high airspeeds sorts maneuvers will climb vertically long air breathe An MA construction article presently planned though features new Fabtronics Mark 3 CDl pointless system Once treat mill system wont settle anything less coupled 4 cycle have Best Two Worlds works equally well 2 cycles twins two cylindars model size engine unit comes pre-drilled disk sensor clamp mounting sensor engine 90 day warranty complete structions conversion timing procedure Unit operates 48 volt low current drain weight mere 2 oz size 2 x 2 x 75 inches Complete system comes ignition coil spark plug on/off switch ignition cable also available seperately Batteries cluded Please state engine size use ordering Converting ignition has ad vantages such tremendous saving fuel less mess no burned-out plugs bet ter idle name few Nearly engine can easily con verted can switch unit plane car boat helicopter another Installation very easy no special tools needed Automatic Spark Advance now available 4 cycle engines Complete system$6995 cash MO Certifed Check plus $300 P & H Personal checks take time clear Illinois residents please add tax Brochure ndable purchase FABTRONICS 375 Isle Royale Rd Galesburg IL 61401 TICK OFF TIMER Now Available 0-20 Seconds Fuel shut off Flood Off Auto rudder function Weight 02 Fuel line included 14 Limited supply EXTRA FUEL UNE TUBINGSO-- ft DIRECT ORDER ONLY Send Cash Check MO COD 83 extrs Calif 6% LENGTH7/ExtraTip *995 APPROX$125 ONE STEEL AND ONE BRASS TIP Send Check Money Order M & W MODELS PO Box 6827 Huntington Beach CA 92615 Add 150 Pont & Hand CA Res add 6% tax suggested method frequency con trol shown AMA rule book page 128 1986-87 book re quires insert AMA member ship card pocket frequency control board remove fre quency control clip must possession before turn trans mitter concerned about losing AMA cards system could amended permit using copy cards lieu originals prerequisite flying partic ular field membership club system identifying paid-up members used Northern Virginia RC Club worth considering Upon payment nual dues club issues colored stickers attachment members transmitters color changes year year issue printed stickers Proof AMA membership has provided NVRC members renew club memberships So presence appro priate sticker members transmitter signifies both current club AMA membership quick check trans mitter impound rack flying field readily identifies delinquent dues payment Servo-screw integrity few issues ago ran letter Peter Young alleged use self-tapping screws hold together two halves servo cases good practice may work loose because engine vibration during flight Another reader Jay Stevens has formed too experienced problem like Peter now uses dab epoxy screws prevent loosening As alternative epoxy Glen Grady Port St Lucie FL suggests using finger nail polish Glen has successfully used nail polish secure screws cameras used record data jet engines full-scale aircraft thinks nail polish will just effective epoxy securing servo screws will permit easier sqrew removal should servo need disassembled servicing Electric starters Before signing off month word caution use electric starters engines equipped spinner also comes Glen Grady witnessed acci dent fellow club member visit hospital have piece pro peller removed chest mod eler attempting start 40-size four-stroke equipped wooden prop no spinner Glen did state whether prop secured AMA prop nut letter described what happened follows starter used con stantly would spin off-center throwing rubber cone starter out just happened did time cone flew out engine fired up throttle wide open plane lurched forward starter because cone come out vibration starter spinnerless prop loosened grip airplane prop hit starter shattered sending piece wood chest about half inch Fortunately modeler inci dent seriously injured Neverthe less Glen suggests starters should used engine unless spinner used never start engine throttle wide open have add latter tip applies throttle-equipped engines Free Flight Power Control Line modelers careful Have safe month John Preston 12235 Tilden wood Dr Rockvile MD 20852 Radio Technique/Myers Continued page 41 Non-Aircraft band Now AMA anyone matter supposed go about organizing such diverse group what purpose agreed call meeting upcoming Toledo show industry special-interest groups eg cars boats discuss frequency problems 5 In technical session discus130 Model Aviation fl7HAMMER QUADRA-SCALE PzL P-23A KARAS Poish econ ard lgh bomber 95 rise lev0 ece pior erg t zrarrel obeai05 FII-sze pints 53h 00 ObrAOaid r U S Corn Io reassal ,zlOed LARRY GORDON 2sh0 GOLDEN SHORES CT FENTON MICH 48430 343 629-5786 JOHN TATONE 164 School St City CA 94014 4157563400 Matched Performance System TOP PERFORMANCE K&B ENGINES AirplaneMarine K&B FUELSK&B GLOW PLUGS B Blends4 Cheices Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN K&B SUPER FOXY THINNER K&B SUPER POXY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS sion centered third-order intermodula tion interference 31M considered test data presented George Steiner receivers Bill Hershberger transmit ters team Myers Aberle field tests both transmitters receivers have already seen Aberle/Myers data Radio Tech nique January February 1986 Flying Models magazine take Subsequent Frequency Commit tee meeting Bob Aberle went back field examine second-order product interference 20P question closely some thought passed off too easily Well can now report based much de tailed elaborate set tests find current crop receivers both AM FM single- dual-conversion have designed very nicely resist 20P less problem adjacent-channel interference 20 kHz raster far less important 31M George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 RC Soaring/Pruss Continued page 47 along Gregg Seydel Scott Christ ensen Top Flite Models offered tricks trade under topic Contest Strategies Along above swap session socializingWisconsin style table clinics socializingWis consin style bull sessions socializ ingWisconsin style cost $15and included buffet lunch Saturday made contest cir cuit banquets look like Lenten fast days So can see fit Madison next Novembers first weekend can sure youll spend finest modeling get-togethers ever Never mind about eight inches snow fell programmed Dr Walt Good didnt think just going have drive country during trek up Florida Now some gadgets Leon Kincaid excellent designer builder see Scooter plans October 1983 issue Model Aviation has clever way getting airtight fit between wing roots fuselage Its also good secur ing wing halves matter Forget about tape idea does take bit building finesse job worth doing worth doing well During wing construction besides main wing joiners alignment tubes Leon installs second set tubes just behind main wing joiner shown photo Location critical tubing diameters arent either However larger diameters tubing better Notice saying diameters because key system fact wing tube telescopes other Which wing has larger tube isnt critical either Small holes carefully drilled wing tubes elongated slightly direction wingspan After wings joined fuselage flat steel tapered pin narrow end matches drilled holes insert ed forced holes As pin forced wing halves snugged up fuselage Nice Soaring Products Thermal Sniffler has production last 15 years now being manufactured distributed Ace R/C Inc no changes fine product ever receiver offered uses ear plug monitor Snifflers signal isnt bad arrangement tran quil summer afternoon However times loudspeaker would serve better others could listen insuch during LSF long-distance tasks cross-country flying teamwork important factor Jack Hiner found need such modification cir cuit parts list presented parts list end column Gregg Seydel has come up idea stabilizing stabilizerswell driven bellcrank up vertical fin anyway usual technique use bearing made brass tubing Continued page 135 6 NYRSeEB cm MACHE THE LEADER IN COMPETITION PROPELLERS NEW THP DESIGN TAILORED HELICAL PITCH DEVELOPEDTO GIVE MAXIMUM THRUST AT 4 CYCLE ENGINE RPM ALLTHE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW K DIAPITCH THP 126677/,8 13677/8 14677/8 1567 16678 NEW PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION lOTO 20% INCREASE IN THRUST MPG OF SELECT HARD MAPLE WOOD WILL NOT FATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 53/34 149 634149 72833456179 83344568189 8/4566/7 199 94566h77/ 199 104566/7 209 106W8W209 106EW219 114677A7A78229 115W229 IiSEW239 1167239 124W 279 125W 279 1256 279 1356 349 1458 459 1556 659 164/N989 16678 969 RC PYLON RACING SERIES 500 DIA PITCH PRICE 7SN 5/N279 8I 6/7/,7A8 299 SERIES 400C 86677/7289 9777/289 W WIDE BLADE EW EXTRA WIDE N NARROW March 1986 131 PRICE 299 379 479 689 989