G eorg eM Myers PROPER TUNING important 1986 has already strange year took long Christmas vacation first time life since returning have literally buried work Grumman Meanwhile same time reader let ters have come flood Reader letters usually broadly divid ed three categories 1 Which RC radio shall buy 2 Whats new RC channel setup 3 can get information fixes particular old radio Since publication Janu ary 86 issue have also received 4 large number letters 31M third order intermodulation interference rarely answer first question except saying safest radio right now Ham band spacing 53 MHz 100 kHz population small So worried about multi-kilobuck Giant Scale model get yourself Ham ticket enjoy fun Remember get Ham receiver too can monitor channel intend fly Hams supposed listen before transmit Besides reason new ham channels 508 thru 5098 MHz 52 through 54 MHz beginning used other things like repeaters computer RF modems Modem lator/demod ulator device two-way communica tions computers subject computer RF modem links several readers have sent copies advertising RE modems 72 MHz frequencies thing find annoying advertisements quote use both odd new RC old RC channels doubt manufac turer could have obtained FCC permis sion use new channels quickly though started out Secondary Users AMA lawyers looking present RF modems re stricted low power-levels watt means should present problemunless someone flying right next operating modem unlikely happen normal use modem might happen someone would drive up flying site battery-operated modem car might want consider posting club rule prohibiting use RF modems field RE modem two-edged sword user manages avoid cost inhouse public telephone wiring loses privacy security can hear him club monitor what choose about business lets hasty about computer world extremely noisy RE basis probably much noisier Before RF modem can put useful service would-be manufac turer will have solve problems face including 31M fact real ly means use both odd chan nels will have solve 31M prob lems 10 kHz raster fallout could better RC receiver us respect second category isnt new RC channel setup wont until 1988 category three easiest-to-obtain source information old radios Fred Marks book Getting Most Radio Control Systems Kalmbach ISBN 0-89024-550-9 Which leaves us fourth category 31M Bob Aberle put lot work field-testing receivers MA January 86 pg 42 continuing effort find outstanding performer well tell So far havent First Proposition point trying illustrate table page 43 January issue Model Aviation 42 Model Aviation few quick flights lunchtime its hard beat Pisyboy 56 Howie Appiegate holding transmitter built Society Antique Modeisre rules powers OS Max 10 FSR 300 sq wing area weIght two pounds its ideal fi ing off baii diamond Peopie photo LR Bob Aberie Howie Tom Hunt ob Riiey Three RC channeis contrai rudder sievator throttie simply tested AM FM PCM systems using both single- dual-conversion receivers wet dry conditions did well 31M Therefore since cant buy RC system ignores 31M better pay attention Second Proposition point try ing illustrate table page 43 February issue Model Aviation too 31M triplets permit us set up general flight line scheme number flight stations agree three-station flight line two 72 MHz channels Hams will avoid practically problems satisfactory rest column showed satisfactory arrangements can usually culled existing populations Since publication column describ ing field-test procedure its results have received letters phone calls subject saying understand 31M first time letter contained ultimate compli ment worksheet full data John Krekelberg Minneapolis MN went out -20 0F weather some friends run tests heavilyadvertised 1991 system well some others Bob dont test kind weather its what youve got mean fly testing definitely intelligent thing thing didnt make clear about test procedure should discussed now object always has define point complete system failure Thats use complete systems keep rocking control transmitter stick watch ing servo response change positive control no control servo usually takes place within foot measured distance Glitches other hand frequently come go several locations prior no control So replicate tests cant stop moving toward interferers first sign glitching because will get different answers time test go complete failure failure point measurement will repeat time repeat test weeks later have done validate procedure have received several letters calls engineers electronics industry appreciated test procedure data have made suggestions about existing receiver designs can improved experts agreed bet ter performance possiblepar ticularly respect 31Mbut easily obtainable within state art significant change needed may increase voltage receiver What does come down think comes down Knowledgeable people taking serious interest improving RC system design time will improve things us meantime best thing can convince friends 3IM real convince things like equipment maintenance periodic retun ing transmitters receivers use impound areas monitors frequency clips frequency flags should part cluband belong flying site just large contests Some letters receive mention Most members pay no atten tion what say go describe what really happens flying field take sign respect correspondent upset am grateful same time know modelers great show-offs will make pretense doing something very stupid just effect truth matter have done times beforeand certain will work out right Snap rolls takeoff knifeedge flight down runway flying through hanger other Hollywood tricks come lots practice same goes flying monitor impound area As long no introduces newand unexpect edelement equation goes well margin error smaller has Star transmitter-evaluation program off fine start spending two days doing transmitter testing IMS show California 98 units tested 31 out frequency tolerance 40 showed sec ond harmonic output greater -30 dB 17 showed sideband Hz greater -30 dB Since results much poorer found 83 85 Nats have assume George testing sport transmitters rather transmitters regularly used competi tion results found repeated other locations will have cause concern implica tion will transmitters used pri marily sport fliers trust worthy Like pianos RC systems need periodic retuning question get have feeling good work done crystal-swap ping period 1983 transmitters being realigned time swap being dissipated inexorable march time margin error getting smaller Another concern expressed half letters receive notably keep Car Boat people off Aircraft-Only frequencies During Christmas vacation made acquain tance new hobby shop owner friend daughters what did find him doing screwing car radio plane questioned him about explained distrib May1986 43 George P Steiner got AMA GoldContinued page 147 Bob Aberle uses originaldesign Image Turnaround Pattern trainer Picture shows Enya 60 two-stroke installed now flies Enya 80 four-stroke weighs 8 lb has 820 sq wing areaflies well slow speeds small field can used Design features engine thrust line wing stab same line show plane remind AMA number must carried either wing side fuselage vertical stabilizer Thats MUST Pattern competition AMA rule book page 43 par 47 Identification sport fliers OfficIal AMA Safety Code General item 6 page 133 says least required model identif led fliers name address AMA number model Available NowThe New Breed Sachs/DolmarLightst weight hand start ready-to-mount engines market 31 $27500 34- $34500 37 $35500 42- $37500 Engines Complete Nothing Extra Buy Choice points 1SIba2z-SYaHP34-5Ibsftoz-65P37-SIhs4oz-CtaHP42-5Vjs3oi-7MP CDI IgnitionOption engines Throttle-coupled spark advance Features CustomIz newest German engines parts ler t ting Bolts sure Tap smoke Carburetor Linkage Ignition ICH Eiectronicsl Ignition Peck ty Switch lt Hub stor Spk Pigs Warranty Fauity Parts Workmanship T G Mfg 857 High Mountain Rd North Haiedon NJ 07508 e 201 427-3845 Plane Talk/Winter Continued page 143 enjoy does will use spoilers see article February issue plan new wrinkle hate install ailerons tape Bill Evans now AMA Museumcompany demo Slow Motion Electric Astro 25 14 cells 12 Ah capacity conned Bill roaring success direct driveaerobatics plus soaring over hour high-speed inverted flybys got five-year-old kid fly attention wanderedyou could see him watching other airplanes Yet Slow Motion sailing wide circles wide open piped 60 Desperado Evans hates stabilizers Des perado published April 1984 issue magazine has cathedral huge towering tail Stable rock course does what consider fearful high-speed aerobatics film paused ask wanted 60-powered Desperado subscribe old-fashioned explanation dihedral works plane could fly would nearly unflyable tractable Slow Motion published MA Ive told Bill could spec version match SloMo fine now has picture Dasher 60and like am willing tackle 60 Dasher max 40 power What am saying Actually Id feel good hot 25but am double-dared 74 tape showed Giant Scale CAPso pretty Look close gosh no stabilizer flights tape better what can stab Its called T-CAP slowed-up tendencies CAP stall vanished stab Slow slow fly bys tips quivering Yes hot Tschirgis crazy giant tailless Stik wonders bother making boring tail surfaces Airfoils CG locations make possible things see Thank Lord Purple Plan golden Octobers Bill Winter 4432 Altura Ct Fairfax VA 22030 Can talk ask pictures returned accompanying envelope obviously cannot use wonderful things Dont have negatives making prints ones send wont priceless Others would like see please include stamped pre-addressed envelopes least stamp Try use influence postman wont ask excess postage responding advertIsers mentIon read aboutthem ModelAviation Radio Technique/Myers Continued page 43 utor Salt Lake City area fourchannel two-stick 75 MHz radios stock time said Go ahead wont make difference also talked established hobby shop owner nearby village told RC airplanes dont sell around cant keep enough off-road RC cars stock first radio went back distributor its easy see retailers arent bad guys situation hope see suggested Bob Aberle back 1982 fre quencies divided mentioned again column June 85 discussed AMA Frequency Committee meeting November 85 reiterated John Prestons column April 86 issue wit Weve got get manufac turers permanently mark 75MHz radios use aircraft 72 MHz radios Aircraft Only right factory markings arent permanent arent put factory wont have effect probably wont happen until 1988 shared channels go away think ought put some effort making happen Ive really buried letters Please Introducing. irekIIn RIC Idle-Bar Glow Plugs Long Short Also.Only $169 Traditional line non-idle bar Glow Plugs a Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $129 Swanson Associates PO Box 151 Wayne NJS948 07470 m Custom Built Models 2036 N Thorn Ave Fresco CA 93704 em 6 pmOrder Phone 209 233-1050ask Bill If you LOVE fly HATE build Contact e solution probleml Kits Custom Built Order Sanded Ready Cover AndrewsGoldbergGreat PlanesEtc - IF1yWhatIBuu1d May1986 147 lie Koush Laser Kit TG Reg $24995 hardware -$27995 SYNTHETIC LUBRICANTS CASTOR LUBRICANTS POWER ADDITIVES FREE CATALOG INcODUCT INFOTIPS UDES~ 800-242-0489 777 j3#7 Pt Box 11343 154tt57 219-749-1489 PILOTS TS RIOR TS T THE MOST SUPERIOR PILOT FIGURE ON THE MARKET LIGHTEST WEIGHT MOST REALISTIC AVAILABLE GIVE YOUR PLANE PILOT FOR YOUR NEWEST OLDEST OR NEXT CREATION R YOURS TODAY FULL FIGURES CIVILIANWWII MILITARY 1/3 Scale $19951/5 Navy $1395 1/4 Scale1495 1/6AAF1195 1/5 Scale1295 Plus 1/12 Scale895 $250 shipping 1/12 Chopper 895 figure KNIGHTS OF THE AIR 1400 Rte 22 West Friendship MD 21794 301-489-5050 take answers above can Thanks wrote George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 NW Expo/Haught Continued page 45 quite good leading wonder might discourage newcomers modeling dont build museum-quality models after years practice wish bones category maybe few average models thrown encourage neophites Trophies awarded through third place several categories award Best Show de termined ballot cast attendees Drawings prizes conducted several vendors perfect way modeler spend day two particu larly liked variety activities both static displays demonstrations provided break routine Bleachers provided outdoor flight demon strations loudspeakers let everyone mmmmmmmminmmmmmmmmm II MOWNG LET US KNOW WHERE YOU ARE GOING IWhen move please let us know advancesix weeks requiredI Ito change address Attach current MA mailing label check appropriate box end mail Subscription Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION 0 CHANGE OF ADDRESS Non-AMA-member subscription rates $1800 12 months US possessions- elsewhere including Canada Mexico $2600 US Schools $900 US Libraries $1350 NameI II Address City/State __________________ ZIP ______ UModelAviation 1810 Samuel Morse Dr Reston VA 22090I L mm mm m mm mm m mm mm mm mm mm mm mm mm m COMET COVERITE COX DUBRO EASY BUILT MODELS- ENVA- FAt FLYLINE FOX GOLDBERG EN AGE REPRO GENE DUBOIS GUILLOW- K&B- K&S L R MRC OS MAX PACTRA PECK-POLYMER PERFECT RN MODELS SEAGLEN SIG STERLING- SULLIVAN SUPER TIGRE TAFFINDER TELCO TOP FLITE TREXLER WILLIAMS & OTHERS ESTES MODEL ROCKETS Seod 5100 Cash Check Stamps 44 page tabloid sic DISCOUNT Catalog 900 illustrationsore 700 Kits choose ILORDER PHONEORDER IN STORE PENN VILLET HOBBY CENTER 887 W MaiD St LansdaluPa 19446 know what happening treated some spectacular RC Helicopter flying demonstrations Control Line flying manager event Robert Pfeif fer sponsoring club Mount Rainier Radio Control Society commended efforts RC Aerobatics/Van Putte Continued page 47 USPJA flags used will reclaim World Team Championship knows rest world doesnt enforce box will proba bly fare better did 1985 Sounds grim doesnt Neverthe less think should fly judge accordance rules take whatever comes Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Scale/Wischers Continued page 49 must opened before after flight first risk door will latched closed before takeoff latch needs rather substantial construction withstand repeated opera tion probably should copy LIUM w rLANS UT - 1/2A FULL KIT $2795 y A-B FULL KIT3995 B-C-D PRO KIT4495 B-C-D FULL KIT5995 Tee Dee Back Plate Mount 500 Pacifiersea 50 Surgical Tubingi ott 300 Shipping $250 ea order Shipping paid orders over $6000 PRE- PAY OR COD/CA RES ADD 6-1/2% TAX .0 148 Model Aviation CPROTECHTOR PRO -MOUNT TRANSMITTER CASEENSINE foiiyotcttsineOtrOstt .is strong theenlo-6061-T6 aiuoinoss brightly molded metal framed softpolished reeCood foam filled 9olZot inmounting holes FOr 605 tarrying case best on120s 03 61 COOl 61 65 SI narhet trans-OPt 60 YS 61 tIC 05 60 Clitter Prices 13250 Add50 90 SOya 60 four tydest 3250 shipping Alaska322 En3o 90 12003 120 four tytie 325 Add 5150 Hawaii 1450ship Ca AK C Ni 3200 SASE FOR FREE CATALOGCA RESADD6 BERGERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632
Edition: Model Aviation - 1986/05
Page Numbers: 42, 43, 147, 148
G eorg eM Myers PROPER TUNING important 1986 has already strange year took long Christmas vacation first time life since returning have literally buried work Grumman Meanwhile same time reader let ters have come flood Reader letters usually broadly divid ed three categories 1 Which RC radio shall buy 2 Whats new RC channel setup 3 can get information fixes particular old radio Since publication Janu ary 86 issue have also received 4 large number letters 31M third order intermodulation interference rarely answer first question except saying safest radio right now Ham band spacing 53 MHz 100 kHz population small So worried about multi-kilobuck Giant Scale model get yourself Ham ticket enjoy fun Remember get Ham receiver too can monitor channel intend fly Hams supposed listen before transmit Besides reason new ham channels 508 thru 5098 MHz 52 through 54 MHz beginning used other things like repeaters computer RF modems Modem lator/demod ulator device two-way communica tions computers subject computer RF modem links several readers have sent copies advertising RE modems 72 MHz frequencies thing find annoying advertisements quote use both odd new RC old RC channels doubt manufac turer could have obtained FCC permis sion use new channels quickly though started out Secondary Users AMA lawyers looking present RF modems re stricted low power-levels watt means should present problemunless someone flying right next operating modem unlikely happen normal use modem might happen someone would drive up flying site battery-operated modem car might want consider posting club rule prohibiting use RF modems field RE modem two-edged sword user manages avoid cost inhouse public telephone wiring loses privacy security can hear him club monitor what choose about business lets hasty about computer world extremely noisy RE basis probably much noisier Before RF modem can put useful service would-be manufac turer will have solve problems face including 31M fact real ly means use both odd chan nels will have solve 31M prob lems 10 kHz raster fallout could better RC receiver us respect second category isnt new RC channel setup wont until 1988 category three easiest-to-obtain source information old radios Fred Marks book Getting Most Radio Control Systems Kalmbach ISBN 0-89024-550-9 Which leaves us fourth category 31M Bob Aberle put lot work field-testing receivers MA January 86 pg 42 continuing effort find outstanding performer well tell So far havent First Proposition point trying illustrate table page 43 January issue Model Aviation 42 Model Aviation few quick flights lunchtime its hard beat Pisyboy 56 Howie Appiegate holding transmitter built Society Antique Modeisre rules powers OS Max 10 FSR 300 sq wing area weIght two pounds its ideal fi ing off baii diamond Peopie photo LR Bob Aberie Howie Tom Hunt ob Riiey Three RC channeis contrai rudder sievator throttie simply tested AM FM PCM systems using both single- dual-conversion receivers wet dry conditions did well 31M Therefore since cant buy RC system ignores 31M better pay attention Second Proposition point try ing illustrate table page 43 February issue Model Aviation too 31M triplets permit us set up general flight line scheme number flight stations agree three-station flight line two 72 MHz channels Hams will avoid practically problems satisfactory rest column showed satisfactory arrangements can usually culled existing populations Since publication column describ ing field-test procedure its results have received letters phone calls subject saying understand 31M first time letter contained ultimate compli ment worksheet full data John Krekelberg Minneapolis MN went out -20 0F weather some friends run tests heavilyadvertised 1991 system well some others Bob dont test kind weather its what youve got mean fly testing definitely intelligent thing thing didnt make clear about test procedure should discussed now object always has define point complete system failure Thats use complete systems keep rocking control transmitter stick watch ing servo response change positive control no control servo usually takes place within foot measured distance Glitches other hand frequently come go several locations prior no control So replicate tests cant stop moving toward interferers first sign glitching because will get different answers time test go complete failure failure point measurement will repeat time repeat test weeks later have done validate procedure have received several letters calls engineers electronics industry appreciated test procedure data have made suggestions about existing receiver designs can improved experts agreed bet ter performance possiblepar ticularly respect 31Mbut easily obtainable within state art significant change needed may increase voltage receiver What does come down think comes down Knowledgeable people taking serious interest improving RC system design time will improve things us meantime best thing can convince friends 3IM real convince things like equipment maintenance periodic retun ing transmitters receivers use impound areas monitors frequency clips frequency flags should part cluband belong flying site just large contests Some letters receive mention Most members pay no atten tion what say go describe what really happens flying field take sign respect correspondent upset am grateful same time know modelers great show-offs will make pretense doing something very stupid just effect truth matter have done times beforeand certain will work out right Snap rolls takeoff knifeedge flight down runway flying through hanger other Hollywood tricks come lots practice same goes flying monitor impound area As long no introduces newand unexpect edelement equation goes well margin error smaller has Star transmitter-evaluation program off fine start spending two days doing transmitter testing IMS show California 98 units tested 31 out frequency tolerance 40 showed sec ond harmonic output greater -30 dB 17 showed sideband Hz greater -30 dB Since results much poorer found 83 85 Nats have assume George testing sport transmitters rather transmitters regularly used competi tion results found repeated other locations will have cause concern implica tion will transmitters used pri marily sport fliers trust worthy Like pianos RC systems need periodic retuning question get have feeling good work done crystal-swap ping period 1983 transmitters being realigned time swap being dissipated inexorable march time margin error getting smaller Another concern expressed half letters receive notably keep Car Boat people off Aircraft-Only frequencies During Christmas vacation made acquain tance new hobby shop owner friend daughters what did find him doing screwing car radio plane questioned him about explained distrib May1986 43 George P Steiner got AMA GoldContinued page 147 Bob Aberle uses originaldesign Image Turnaround Pattern trainer Picture shows Enya 60 two-stroke installed now flies Enya 80 four-stroke weighs 8 lb has 820 sq wing areaflies well slow speeds small field can used Design features engine thrust line wing stab same line show plane remind AMA number must carried either wing side fuselage vertical stabilizer Thats MUST Pattern competition AMA rule book page 43 par 47 Identification sport fliers OfficIal AMA Safety Code General item 6 page 133 says least required model identif led fliers name address AMA number model Available NowThe New Breed Sachs/DolmarLightst weight hand start ready-to-mount engines market 31 $27500 34- $34500 37 $35500 42- $37500 Engines Complete Nothing Extra Buy Choice points 1SIba2z-SYaHP34-5Ibsftoz-65P37-SIhs4oz-CtaHP42-5Vjs3oi-7MP CDI IgnitionOption engines Throttle-coupled spark advance Features CustomIz newest German engines parts ler t ting Bolts sure Tap smoke Carburetor Linkage Ignition ICH Eiectronicsl Ignition Peck ty Switch lt Hub stor Spk Pigs Warranty Fauity Parts Workmanship T G Mfg 857 High Mountain Rd North Haiedon NJ 07508 e 201 427-3845 Plane Talk/Winter Continued page 143 enjoy does will use spoilers see article February issue plan new wrinkle hate install ailerons tape Bill Evans now AMA Museumcompany demo Slow Motion Electric Astro 25 14 cells 12 Ah capacity conned Bill roaring success direct driveaerobatics plus soaring over hour high-speed inverted flybys got five-year-old kid fly attention wanderedyou could see him watching other airplanes Yet Slow Motion sailing wide circles wide open piped 60 Desperado Evans hates stabilizers Des perado published April 1984 issue magazine has cathedral huge towering tail Stable rock course does what consider fearful high-speed aerobatics film paused ask wanted 60-powered Desperado subscribe old-fashioned explanation dihedral works plane could fly would nearly unflyable tractable Slow Motion published MA Ive told Bill could spec version match SloMo fine now has picture Dasher 60and like am willing tackle 60 Dasher max 40 power What am saying Actually Id feel good hot 25but am double-dared 74 tape showed Giant Scale CAPso pretty Look close gosh no stabilizer flights tape better what can stab Its called T-CAP slowed-up tendencies CAP stall vanished stab Slow slow fly bys tips quivering Yes hot Tschirgis crazy giant tailless Stik wonders bother making boring tail surfaces Airfoils CG locations make possible things see Thank Lord Purple Plan golden Octobers Bill Winter 4432 Altura Ct Fairfax VA 22030 Can talk ask pictures returned accompanying envelope obviously cannot use wonderful things Dont have negatives making prints ones send wont priceless Others would like see please include stamped pre-addressed envelopes least stamp Try use influence postman wont ask excess postage responding advertIsers mentIon read aboutthem ModelAviation Radio Technique/Myers Continued page 43 utor Salt Lake City area fourchannel two-stick 75 MHz radios stock time said Go ahead wont make difference also talked established hobby shop owner nearby village told RC airplanes dont sell around cant keep enough off-road RC cars stock first radio went back distributor its easy see retailers arent bad guys situation hope see suggested Bob Aberle back 1982 fre quencies divided mentioned again column June 85 discussed AMA Frequency Committee meeting November 85 reiterated John Prestons column April 86 issue wit Weve got get manufac turers permanently mark 75MHz radios use aircraft 72 MHz radios Aircraft Only right factory markings arent permanent arent put factory wont have effect probably wont happen until 1988 shared channels go away think ought put some effort making happen Ive really buried letters Please Introducing. irekIIn RIC Idle-Bar Glow Plugs Long Short Also.Only $169 Traditional line non-idle bar Glow Plugs a Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $129 Swanson Associates PO Box 151 Wayne NJS948 07470 m Custom Built Models 2036 N Thorn Ave Fresco CA 93704 em 6 pmOrder Phone 209 233-1050ask Bill If you LOVE fly HATE build Contact e solution probleml Kits Custom Built Order Sanded Ready Cover AndrewsGoldbergGreat PlanesEtc - IF1yWhatIBuu1d May1986 147 lie Koush Laser Kit TG Reg $24995 hardware -$27995 SYNTHETIC LUBRICANTS CASTOR LUBRICANTS POWER ADDITIVES FREE CATALOG INcODUCT INFOTIPS UDES~ 800-242-0489 777 j3#7 Pt Box 11343 154tt57 219-749-1489 PILOTS TS RIOR TS T THE MOST SUPERIOR PILOT FIGURE ON THE MARKET LIGHTEST WEIGHT MOST REALISTIC AVAILABLE GIVE YOUR PLANE PILOT FOR YOUR NEWEST OLDEST OR NEXT CREATION R YOURS TODAY FULL FIGURES CIVILIANWWII MILITARY 1/3 Scale $19951/5 Navy $1395 1/4 Scale1495 1/6AAF1195 1/5 Scale1295 Plus 1/12 Scale895 $250 shipping 1/12 Chopper 895 figure KNIGHTS OF THE AIR 1400 Rte 22 West Friendship MD 21794 301-489-5050 take answers above can Thanks wrote George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 NW Expo/Haught Continued page 45 quite good leading wonder might discourage newcomers modeling dont build museum-quality models after years practice wish bones category maybe few average models thrown encourage neophites Trophies awarded through third place several categories award Best Show de termined ballot cast attendees Drawings prizes conducted several vendors perfect way modeler spend day two particu larly liked variety activities both static displays demonstrations provided break routine Bleachers provided outdoor flight demon strations loudspeakers let everyone mmmmmmmminmmmmmmmmm II MOWNG LET US KNOW WHERE YOU ARE GOING IWhen move please let us know advancesix weeks requiredI Ito change address Attach current MA mailing label check appropriate box end mail Subscription Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION 0 CHANGE OF ADDRESS Non-AMA-member subscription rates $1800 12 months US possessions- elsewhere including Canada Mexico $2600 US Schools $900 US Libraries $1350 NameI II Address City/State __________________ ZIP ______ UModelAviation 1810 Samuel Morse Dr Reston VA 22090I L mm mm m mm mm m mm mm mm mm mm mm mm mm m COMET COVERITE COX DUBRO EASY BUILT MODELS- ENVA- FAt FLYLINE FOX GOLDBERG EN AGE REPRO GENE DUBOIS GUILLOW- K&B- K&S L R MRC OS MAX PACTRA PECK-POLYMER PERFECT RN MODELS SEAGLEN SIG STERLING- SULLIVAN SUPER TIGRE TAFFINDER TELCO TOP FLITE TREXLER WILLIAMS & OTHERS ESTES MODEL ROCKETS Seod 5100 Cash Check Stamps 44 page tabloid sic DISCOUNT Catalog 900 illustrationsore 700 Kits choose ILORDER PHONEORDER IN STORE PENN VILLET HOBBY CENTER 887 W MaiD St LansdaluPa 19446 know what happening treated some spectacular RC Helicopter flying demonstrations Control Line flying manager event Robert Pfeif fer sponsoring club Mount Rainier Radio Control Society commended efforts RC Aerobatics/Van Putte Continued page 47 USPJA flags used will reclaim World Team Championship knows rest world doesnt enforce box will proba bly fare better did 1985 Sounds grim doesnt Neverthe less think should fly judge accordance rules take whatever comes Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Scale/Wischers Continued page 49 must opened before after flight first risk door will latched closed before takeoff latch needs rather substantial construction withstand repeated opera tion probably should copy LIUM w rLANS UT - 1/2A FULL KIT $2795 y A-B FULL KIT3995 B-C-D PRO KIT4495 B-C-D FULL KIT5995 Tee Dee Back Plate Mount 500 Pacifiersea 50 Surgical Tubingi ott 300 Shipping $250 ea order Shipping paid orders over $6000 PRE- PAY OR COD/CA RES ADD 6-1/2% TAX .0 148 Model Aviation CPROTECHTOR PRO -MOUNT TRANSMITTER CASEENSINE foiiyotcttsineOtrOstt .is strong theenlo-6061-T6 aiuoinoss brightly molded metal framed softpolished reeCood foam filled 9olZot inmounting holes FOr 605 tarrying case best on120s 03 61 COOl 61 65 SI narhet trans-OPt 60 YS 61 tIC 05 60 Clitter Prices 13250 Add50 90 SOya 60 four tydest 3250 shipping Alaska322 En3o 90 12003 120 four tytie 325 Add 5150 Hawaii 1450ship Ca AK C Ni 3200 SASE FOR FREE CATALOGCA RESADD6 BERGERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632
Edition: Model Aviation - 1986/05
Page Numbers: 42, 43, 147, 148
G eorg eM Myers PROPER TUNING important 1986 has already strange year took long Christmas vacation first time life since returning have literally buried work Grumman Meanwhile same time reader let ters have come flood Reader letters usually broadly divid ed three categories 1 Which RC radio shall buy 2 Whats new RC channel setup 3 can get information fixes particular old radio Since publication Janu ary 86 issue have also received 4 large number letters 31M third order intermodulation interference rarely answer first question except saying safest radio right now Ham band spacing 53 MHz 100 kHz population small So worried about multi-kilobuck Giant Scale model get yourself Ham ticket enjoy fun Remember get Ham receiver too can monitor channel intend fly Hams supposed listen before transmit Besides reason new ham channels 508 thru 5098 MHz 52 through 54 MHz beginning used other things like repeaters computer RF modems Modem lator/demod ulator device two-way communica tions computers subject computer RF modem links several readers have sent copies advertising RE modems 72 MHz frequencies thing find annoying advertisements quote use both odd new RC old RC channels doubt manufac turer could have obtained FCC permis sion use new channels quickly though started out Secondary Users AMA lawyers looking present RF modems re stricted low power-levels watt means should present problemunless someone flying right next operating modem unlikely happen normal use modem might happen someone would drive up flying site battery-operated modem car might want consider posting club rule prohibiting use RF modems field RE modem two-edged sword user manages avoid cost inhouse public telephone wiring loses privacy security can hear him club monitor what choose about business lets hasty about computer world extremely noisy RE basis probably much noisier Before RF modem can put useful service would-be manufac turer will have solve problems face including 31M fact real ly means use both odd chan nels will have solve 31M prob lems 10 kHz raster fallout could better RC receiver us respect second category isnt new RC channel setup wont until 1988 category three easiest-to-obtain source information old radios Fred Marks book Getting Most Radio Control Systems Kalmbach ISBN 0-89024-550-9 Which leaves us fourth category 31M Bob Aberle put lot work field-testing receivers MA January 86 pg 42 continuing effort find outstanding performer well tell So far havent First Proposition point trying illustrate table page 43 January issue Model Aviation 42 Model Aviation few quick flights lunchtime its hard beat Pisyboy 56 Howie Appiegate holding transmitter built Society Antique Modeisre rules powers OS Max 10 FSR 300 sq wing area weIght two pounds its ideal fi ing off baii diamond Peopie photo LR Bob Aberie Howie Tom Hunt ob Riiey Three RC channeis contrai rudder sievator throttie simply tested AM FM PCM systems using both single- dual-conversion receivers wet dry conditions did well 31M Therefore since cant buy RC system ignores 31M better pay attention Second Proposition point try ing illustrate table page 43 February issue Model Aviation too 31M triplets permit us set up general flight line scheme number flight stations agree three-station flight line two 72 MHz channels Hams will avoid practically problems satisfactory rest column showed satisfactory arrangements can usually culled existing populations Since publication column describ ing field-test procedure its results have received letters phone calls subject saying understand 31M first time letter contained ultimate compli ment worksheet full data John Krekelberg Minneapolis MN went out -20 0F weather some friends run tests heavilyadvertised 1991 system well some others Bob dont test kind weather its what youve got mean fly testing definitely intelligent thing thing didnt make clear about test procedure should discussed now object always has define point complete system failure Thats use complete systems keep rocking control transmitter stick watch ing servo response change positive control no control servo usually takes place within foot measured distance Glitches other hand frequently come go several locations prior no control So replicate tests cant stop moving toward interferers first sign glitching because will get different answers time test go complete failure failure point measurement will repeat time repeat test weeks later have done validate procedure have received several letters calls engineers electronics industry appreciated test procedure data have made suggestions about existing receiver designs can improved experts agreed bet ter performance possiblepar ticularly respect 31Mbut easily obtainable within state art significant change needed may increase voltage receiver What does come down think comes down Knowledgeable people taking serious interest improving RC system design time will improve things us meantime best thing can convince friends 3IM real convince things like equipment maintenance periodic retun ing transmitters receivers use impound areas monitors frequency clips frequency flags should part cluband belong flying site just large contests Some letters receive mention Most members pay no atten tion what say go describe what really happens flying field take sign respect correspondent upset am grateful same time know modelers great show-offs will make pretense doing something very stupid just effect truth matter have done times beforeand certain will work out right Snap rolls takeoff knifeedge flight down runway flying through hanger other Hollywood tricks come lots practice same goes flying monitor impound area As long no introduces newand unexpect edelement equation goes well margin error smaller has Star transmitter-evaluation program off fine start spending two days doing transmitter testing IMS show California 98 units tested 31 out frequency tolerance 40 showed sec ond harmonic output greater -30 dB 17 showed sideband Hz greater -30 dB Since results much poorer found 83 85 Nats have assume George testing sport transmitters rather transmitters regularly used competi tion results found repeated other locations will have cause concern implica tion will transmitters used pri marily sport fliers trust worthy Like pianos RC systems need periodic retuning question get have feeling good work done crystal-swap ping period 1983 transmitters being realigned time swap being dissipated inexorable march time margin error getting smaller Another concern expressed half letters receive notably keep Car Boat people off Aircraft-Only frequencies During Christmas vacation made acquain tance new hobby shop owner friend daughters what did find him doing screwing car radio plane questioned him about explained distrib May1986 43 George P Steiner got AMA GoldContinued page 147 Bob Aberle uses originaldesign Image Turnaround Pattern trainer Picture shows Enya 60 two-stroke installed now flies Enya 80 four-stroke weighs 8 lb has 820 sq wing areaflies well slow speeds small field can used Design features engine thrust line wing stab same line show plane remind AMA number must carried either wing side fuselage vertical stabilizer Thats MUST Pattern competition AMA rule book page 43 par 47 Identification sport fliers OfficIal AMA Safety Code General item 6 page 133 says least required model identif led fliers name address AMA number model Available NowThe New Breed Sachs/DolmarLightst weight hand start ready-to-mount engines market 31 $27500 34- $34500 37 $35500 42- $37500 Engines Complete Nothing Extra Buy Choice points 1SIba2z-SYaHP34-5Ibsftoz-65P37-SIhs4oz-CtaHP42-5Vjs3oi-7MP CDI IgnitionOption engines Throttle-coupled spark advance Features CustomIz newest German engines parts ler t ting Bolts sure Tap smoke Carburetor Linkage Ignition ICH Eiectronicsl Ignition Peck ty Switch lt Hub stor Spk Pigs Warranty Fauity Parts Workmanship T G Mfg 857 High Mountain Rd North Haiedon NJ 07508 e 201 427-3845 Plane Talk/Winter Continued page 143 enjoy does will use spoilers see article February issue plan new wrinkle hate install ailerons tape Bill Evans now AMA Museumcompany demo Slow Motion Electric Astro 25 14 cells 12 Ah capacity conned Bill roaring success direct driveaerobatics plus soaring over hour high-speed inverted flybys got five-year-old kid fly attention wanderedyou could see him watching other airplanes Yet Slow Motion sailing wide circles wide open piped 60 Desperado Evans hates stabilizers Des perado published April 1984 issue magazine has cathedral huge towering tail Stable rock course does what consider fearful high-speed aerobatics film paused ask wanted 60-powered Desperado subscribe old-fashioned explanation dihedral works plane could fly would nearly unflyable tractable Slow Motion published MA Ive told Bill could spec version match SloMo fine now has picture Dasher 60and like am willing tackle 60 Dasher max 40 power What am saying Actually Id feel good hot 25but am double-dared 74 tape showed Giant Scale CAPso pretty Look close gosh no stabilizer flights tape better what can stab Its called T-CAP slowed-up tendencies CAP stall vanished stab Slow slow fly bys tips quivering Yes hot Tschirgis crazy giant tailless Stik wonders bother making boring tail surfaces Airfoils CG locations make possible things see Thank Lord Purple Plan golden Octobers Bill Winter 4432 Altura Ct Fairfax VA 22030 Can talk ask pictures returned accompanying envelope obviously cannot use wonderful things Dont have negatives making prints ones send wont priceless Others would like see please include stamped pre-addressed envelopes least stamp Try use influence postman wont ask excess postage responding advertIsers mentIon read aboutthem ModelAviation Radio Technique/Myers Continued page 43 utor Salt Lake City area fourchannel two-stick 75 MHz radios stock time said Go ahead wont make difference also talked established hobby shop owner nearby village told RC airplanes dont sell around cant keep enough off-road RC cars stock first radio went back distributor its easy see retailers arent bad guys situation hope see suggested Bob Aberle back 1982 fre quencies divided mentioned again column June 85 discussed AMA Frequency Committee meeting November 85 reiterated John Prestons column April 86 issue wit Weve got get manufac turers permanently mark 75MHz radios use aircraft 72 MHz radios Aircraft Only right factory markings arent permanent arent put factory wont have effect probably wont happen until 1988 shared channels go away think ought put some effort making happen Ive really buried letters Please Introducing. irekIIn RIC Idle-Bar Glow Plugs Long Short Also.Only $169 Traditional line non-idle bar Glow Plugs a Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $129 Swanson Associates PO Box 151 Wayne NJS948 07470 m Custom Built Models 2036 N Thorn Ave Fresco CA 93704 em 6 pmOrder Phone 209 233-1050ask Bill If you LOVE fly HATE build Contact e solution probleml Kits Custom Built Order Sanded Ready Cover AndrewsGoldbergGreat PlanesEtc - IF1yWhatIBuu1d May1986 147 lie Koush Laser Kit TG Reg $24995 hardware -$27995 SYNTHETIC LUBRICANTS CASTOR LUBRICANTS POWER ADDITIVES FREE CATALOG INcODUCT INFOTIPS UDES~ 800-242-0489 777 j3#7 Pt Box 11343 154tt57 219-749-1489 PILOTS TS RIOR TS T THE MOST SUPERIOR PILOT FIGURE ON THE MARKET LIGHTEST WEIGHT MOST REALISTIC AVAILABLE GIVE YOUR PLANE PILOT FOR YOUR NEWEST OLDEST OR NEXT CREATION R YOURS TODAY FULL FIGURES CIVILIANWWII MILITARY 1/3 Scale $19951/5 Navy $1395 1/4 Scale1495 1/6AAF1195 1/5 Scale1295 Plus 1/12 Scale895 $250 shipping 1/12 Chopper 895 figure KNIGHTS OF THE AIR 1400 Rte 22 West Friendship MD 21794 301-489-5050 take answers above can Thanks wrote George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 NW Expo/Haught Continued page 45 quite good leading wonder might discourage newcomers modeling dont build museum-quality models after years practice wish bones category maybe few average models thrown encourage neophites Trophies awarded through third place several categories award Best Show de termined ballot cast attendees Drawings prizes conducted several vendors perfect way modeler spend day two particu larly liked variety activities both static displays demonstrations provided break routine Bleachers provided outdoor flight demon strations loudspeakers let everyone mmmmmmmminmmmmmmmmm II MOWNG LET US KNOW WHERE YOU ARE GOING IWhen move please let us know advancesix weeks requiredI Ito change address Attach current MA mailing label check appropriate box end mail Subscription Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION 0 CHANGE OF ADDRESS Non-AMA-member subscription rates $1800 12 months US possessions- elsewhere including Canada Mexico $2600 US Schools $900 US Libraries $1350 NameI II Address City/State __________________ ZIP ______ UModelAviation 1810 Samuel Morse Dr Reston VA 22090I L mm mm m mm mm m mm mm mm mm mm mm mm mm m COMET COVERITE COX DUBRO EASY BUILT MODELS- ENVA- FAt FLYLINE FOX GOLDBERG EN AGE REPRO GENE DUBOIS GUILLOW- K&B- K&S L R MRC OS MAX PACTRA PECK-POLYMER PERFECT RN MODELS SEAGLEN SIG STERLING- SULLIVAN SUPER TIGRE TAFFINDER TELCO TOP FLITE TREXLER WILLIAMS & OTHERS ESTES MODEL ROCKETS Seod 5100 Cash Check Stamps 44 page tabloid sic DISCOUNT Catalog 900 illustrationsore 700 Kits choose ILORDER PHONEORDER IN STORE PENN VILLET HOBBY CENTER 887 W MaiD St LansdaluPa 19446 know what happening treated some spectacular RC Helicopter flying demonstrations Control Line flying manager event Robert Pfeif fer sponsoring club Mount Rainier Radio Control Society commended efforts RC Aerobatics/Van Putte Continued page 47 USPJA flags used will reclaim World Team Championship knows rest world doesnt enforce box will proba bly fare better did 1985 Sounds grim doesnt Neverthe less think should fly judge accordance rules take whatever comes Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Scale/Wischers Continued page 49 must opened before after flight first risk door will latched closed before takeoff latch needs rather substantial construction withstand repeated opera tion probably should copy LIUM w rLANS UT - 1/2A FULL KIT $2795 y A-B FULL KIT3995 B-C-D PRO KIT4495 B-C-D FULL KIT5995 Tee Dee Back Plate Mount 500 Pacifiersea 50 Surgical Tubingi ott 300 Shipping $250 ea order Shipping paid orders over $6000 PRE- PAY OR COD/CA RES ADD 6-1/2% TAX .0 148 Model Aviation CPROTECHTOR PRO -MOUNT TRANSMITTER CASEENSINE foiiyotcttsineOtrOstt .is strong theenlo-6061-T6 aiuoinoss brightly molded metal framed softpolished reeCood foam filled 9olZot inmounting holes FOr 605 tarrying case best on120s 03 61 COOl 61 65 SI narhet trans-OPt 60 YS 61 tIC 05 60 Clitter Prices 13250 Add50 90 SOya 60 four tydest 3250 shipping Alaska322 En3o 90 12003 120 four tytie 325 Add 5150 Hawaii 1450ship Ca AK C Ni 3200 SASE FOR FREE CATALOGCA RESADD6 BERGERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632
Edition: Model Aviation - 1986/05
Page Numbers: 42, 43, 147, 148
G eorg eM Myers PROPER TUNING important 1986 has already strange year took long Christmas vacation first time life since returning have literally buried work Grumman Meanwhile same time reader let ters have come flood Reader letters usually broadly divid ed three categories 1 Which RC radio shall buy 2 Whats new RC channel setup 3 can get information fixes particular old radio Since publication Janu ary 86 issue have also received 4 large number letters 31M third order intermodulation interference rarely answer first question except saying safest radio right now Ham band spacing 53 MHz 100 kHz population small So worried about multi-kilobuck Giant Scale model get yourself Ham ticket enjoy fun Remember get Ham receiver too can monitor channel intend fly Hams supposed listen before transmit Besides reason new ham channels 508 thru 5098 MHz 52 through 54 MHz beginning used other things like repeaters computer RF modems Modem lator/demod ulator device two-way communica tions computers subject computer RF modem links several readers have sent copies advertising RE modems 72 MHz frequencies thing find annoying advertisements quote use both odd new RC old RC channels doubt manufac turer could have obtained FCC permis sion use new channels quickly though started out Secondary Users AMA lawyers looking present RF modems re stricted low power-levels watt means should present problemunless someone flying right next operating modem unlikely happen normal use modem might happen someone would drive up flying site battery-operated modem car might want consider posting club rule prohibiting use RF modems field RE modem two-edged sword user manages avoid cost inhouse public telephone wiring loses privacy security can hear him club monitor what choose about business lets hasty about computer world extremely noisy RE basis probably much noisier Before RF modem can put useful service would-be manufac turer will have solve problems face including 31M fact real ly means use both odd chan nels will have solve 31M prob lems 10 kHz raster fallout could better RC receiver us respect second category isnt new RC channel setup wont until 1988 category three easiest-to-obtain source information old radios Fred Marks book Getting Most Radio Control Systems Kalmbach ISBN 0-89024-550-9 Which leaves us fourth category 31M Bob Aberle put lot work field-testing receivers MA January 86 pg 42 continuing effort find outstanding performer well tell So far havent First Proposition point trying illustrate table page 43 January issue Model Aviation 42 Model Aviation few quick flights lunchtime its hard beat Pisyboy 56 Howie Appiegate holding transmitter built Society Antique Modeisre rules powers OS Max 10 FSR 300 sq wing area weIght two pounds its ideal fi ing off baii diamond Peopie photo LR Bob Aberie Howie Tom Hunt ob Riiey Three RC channeis contrai rudder sievator throttie simply tested AM FM PCM systems using both single- dual-conversion receivers wet dry conditions did well 31M Therefore since cant buy RC system ignores 31M better pay attention Second Proposition point try ing illustrate table page 43 February issue Model Aviation too 31M triplets permit us set up general flight line scheme number flight stations agree three-station flight line two 72 MHz channels Hams will avoid practically problems satisfactory rest column showed satisfactory arrangements can usually culled existing populations Since publication column describ ing field-test procedure its results have received letters phone calls subject saying understand 31M first time letter contained ultimate compli ment worksheet full data John Krekelberg Minneapolis MN went out -20 0F weather some friends run tests heavilyadvertised 1991 system well some others Bob dont test kind weather its what youve got mean fly testing definitely intelligent thing thing didnt make clear about test procedure should discussed now object always has define point complete system failure Thats use complete systems keep rocking control transmitter stick watch ing servo response change positive control no control servo usually takes place within foot measured distance Glitches other hand frequently come go several locations prior no control So replicate tests cant stop moving toward interferers first sign glitching because will get different answers time test go complete failure failure point measurement will repeat time repeat test weeks later have done validate procedure have received several letters calls engineers electronics industry appreciated test procedure data have made suggestions about existing receiver designs can improved experts agreed bet ter performance possiblepar ticularly respect 31Mbut easily obtainable within state art significant change needed may increase voltage receiver What does come down think comes down Knowledgeable people taking serious interest improving RC system design time will improve things us meantime best thing can convince friends 3IM real convince things like equipment maintenance periodic retun ing transmitters receivers use impound areas monitors frequency clips frequency flags should part cluband belong flying site just large contests Some letters receive mention Most members pay no atten tion what say go describe what really happens flying field take sign respect correspondent upset am grateful same time know modelers great show-offs will make pretense doing something very stupid just effect truth matter have done times beforeand certain will work out right Snap rolls takeoff knifeedge flight down runway flying through hanger other Hollywood tricks come lots practice same goes flying monitor impound area As long no introduces newand unexpect edelement equation goes well margin error smaller has Star transmitter-evaluation program off fine start spending two days doing transmitter testing IMS show California 98 units tested 31 out frequency tolerance 40 showed sec ond harmonic output greater -30 dB 17 showed sideband Hz greater -30 dB Since results much poorer found 83 85 Nats have assume George testing sport transmitters rather transmitters regularly used competi tion results found repeated other locations will have cause concern implica tion will transmitters used pri marily sport fliers trust worthy Like pianos RC systems need periodic retuning question get have feeling good work done crystal-swap ping period 1983 transmitters being realigned time swap being dissipated inexorable march time margin error getting smaller Another concern expressed half letters receive notably keep Car Boat people off Aircraft-Only frequencies During Christmas vacation made acquain tance new hobby shop owner friend daughters what did find him doing screwing car radio plane questioned him about explained distrib May1986 43 George P Steiner got AMA GoldContinued page 147 Bob Aberle uses originaldesign Image Turnaround Pattern trainer Picture shows Enya 60 two-stroke installed now flies Enya 80 four-stroke weighs 8 lb has 820 sq wing areaflies well slow speeds small field can used Design features engine thrust line wing stab same line show plane remind AMA number must carried either wing side fuselage vertical stabilizer Thats MUST Pattern competition AMA rule book page 43 par 47 Identification sport fliers OfficIal AMA Safety Code General item 6 page 133 says least required model identif led fliers name address AMA number model Available NowThe New Breed Sachs/DolmarLightst weight hand start ready-to-mount engines market 31 $27500 34- $34500 37 $35500 42- $37500 Engines Complete Nothing Extra Buy Choice points 1SIba2z-SYaHP34-5Ibsftoz-65P37-SIhs4oz-CtaHP42-5Vjs3oi-7MP CDI IgnitionOption engines Throttle-coupled spark advance Features CustomIz newest German engines parts ler t ting Bolts sure Tap smoke Carburetor Linkage Ignition ICH Eiectronicsl Ignition Peck ty Switch lt Hub stor Spk Pigs Warranty Fauity Parts Workmanship T G Mfg 857 High Mountain Rd North Haiedon NJ 07508 e 201 427-3845 Plane Talk/Winter Continued page 143 enjoy does will use spoilers see article February issue plan new wrinkle hate install ailerons tape Bill Evans now AMA Museumcompany demo Slow Motion Electric Astro 25 14 cells 12 Ah capacity conned Bill roaring success direct driveaerobatics plus soaring over hour high-speed inverted flybys got five-year-old kid fly attention wanderedyou could see him watching other airplanes Yet Slow Motion sailing wide circles wide open piped 60 Desperado Evans hates stabilizers Des perado published April 1984 issue magazine has cathedral huge towering tail Stable rock course does what consider fearful high-speed aerobatics film paused ask wanted 60-powered Desperado subscribe old-fashioned explanation dihedral works plane could fly would nearly unflyable tractable Slow Motion published MA Ive told Bill could spec version match SloMo fine now has picture Dasher 60and like am willing tackle 60 Dasher max 40 power What am saying Actually Id feel good hot 25but am double-dared 74 tape showed Giant Scale CAPso pretty Look close gosh no stabilizer flights tape better what can stab Its called T-CAP slowed-up tendencies CAP stall vanished stab Slow slow fly bys tips quivering Yes hot Tschirgis crazy giant tailless Stik wonders bother making boring tail surfaces Airfoils CG locations make possible things see Thank Lord Purple Plan golden Octobers Bill Winter 4432 Altura Ct Fairfax VA 22030 Can talk ask pictures returned accompanying envelope obviously cannot use wonderful things Dont have negatives making prints ones send wont priceless Others would like see please include stamped pre-addressed envelopes least stamp Try use influence postman wont ask excess postage responding advertIsers mentIon read aboutthem ModelAviation Radio Technique/Myers Continued page 43 utor Salt Lake City area fourchannel two-stick 75 MHz radios stock time said Go ahead wont make difference also talked established hobby shop owner nearby village told RC airplanes dont sell around cant keep enough off-road RC cars stock first radio went back distributor its easy see retailers arent bad guys situation hope see suggested Bob Aberle back 1982 fre quencies divided mentioned again column June 85 discussed AMA Frequency Committee meeting November 85 reiterated John Prestons column April 86 issue wit Weve got get manufac turers permanently mark 75MHz radios use aircraft 72 MHz radios Aircraft Only right factory markings arent permanent arent put factory wont have effect probably wont happen until 1988 shared channels go away think ought put some effort making happen Ive really buried letters Please Introducing. irekIIn RIC Idle-Bar Glow Plugs Long Short Also.Only $169 Traditional line non-idle bar Glow Plugs a Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $129 Swanson Associates PO Box 151 Wayne NJS948 07470 m Custom Built Models 2036 N Thorn Ave Fresco CA 93704 em 6 pmOrder Phone 209 233-1050ask Bill If you LOVE fly HATE build Contact e solution probleml Kits Custom Built Order Sanded Ready Cover AndrewsGoldbergGreat PlanesEtc - IF1yWhatIBuu1d May1986 147 lie Koush Laser Kit TG Reg $24995 hardware -$27995 SYNTHETIC LUBRICANTS CASTOR LUBRICANTS POWER ADDITIVES FREE CATALOG INcODUCT INFOTIPS UDES~ 800-242-0489 777 j3#7 Pt Box 11343 154tt57 219-749-1489 PILOTS TS RIOR TS T THE MOST SUPERIOR PILOT FIGURE ON THE MARKET LIGHTEST WEIGHT MOST REALISTIC AVAILABLE GIVE YOUR PLANE PILOT FOR YOUR NEWEST OLDEST OR NEXT CREATION R YOURS TODAY FULL FIGURES CIVILIANWWII MILITARY 1/3 Scale $19951/5 Navy $1395 1/4 Scale1495 1/6AAF1195 1/5 Scale1295 Plus 1/12 Scale895 $250 shipping 1/12 Chopper 895 figure KNIGHTS OF THE AIR 1400 Rte 22 West Friendship MD 21794 301-489-5050 take answers above can Thanks wrote George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 NW Expo/Haught Continued page 45 quite good leading wonder might discourage newcomers modeling dont build museum-quality models after years practice wish bones category maybe few average models thrown encourage neophites Trophies awarded through third place several categories award Best Show de termined ballot cast attendees Drawings prizes conducted several vendors perfect way modeler spend day two particu larly liked variety activities both static displays demonstrations provided break routine Bleachers provided outdoor flight demon strations loudspeakers let everyone mmmmmmmminmmmmmmmmm II MOWNG LET US KNOW WHERE YOU ARE GOING IWhen move please let us know advancesix weeks requiredI Ito change address Attach current MA mailing label check appropriate box end mail Subscription Dept Model Aviation 1810 Samuel Morse Dr Reston VA 22090 Check appropriate boxenclose payment 0 NEW SUBSCRIPTION 0 CHANGE OF ADDRESS Non-AMA-member subscription rates $1800 12 months US possessions- elsewhere including Canada Mexico $2600 US Schools $900 US Libraries $1350 NameI II Address City/State __________________ ZIP ______ UModelAviation 1810 Samuel Morse Dr Reston VA 22090I L mm mm m mm mm m mm mm mm mm mm mm mm mm m COMET COVERITE COX DUBRO EASY BUILT MODELS- ENVA- FAt FLYLINE FOX GOLDBERG EN AGE REPRO GENE DUBOIS GUILLOW- K&B- K&S L R MRC OS MAX PACTRA PECK-POLYMER PERFECT RN MODELS SEAGLEN SIG STERLING- SULLIVAN SUPER TIGRE TAFFINDER TELCO TOP FLITE TREXLER WILLIAMS & OTHERS ESTES MODEL ROCKETS Seod 5100 Cash Check Stamps 44 page tabloid sic DISCOUNT Catalog 900 illustrationsore 700 Kits choose ILORDER PHONEORDER IN STORE PENN VILLET HOBBY CENTER 887 W MaiD St LansdaluPa 19446 know what happening treated some spectacular RC Helicopter flying demonstrations Control Line flying manager event Robert Pfeif fer sponsoring club Mount Rainier Radio Control Society commended efforts RC Aerobatics/Van Putte Continued page 47 USPJA flags used will reclaim World Team Championship knows rest world doesnt enforce box will proba bly fare better did 1985 Sounds grim doesnt Neverthe less think should fly judge accordance rules take whatever comes Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC Scale/Wischers Continued page 49 must opened before after flight first risk door will latched closed before takeoff latch needs rather substantial construction withstand repeated opera tion probably should copy LIUM w rLANS UT - 1/2A FULL KIT $2795 y A-B FULL KIT3995 B-C-D PRO KIT4495 B-C-D FULL KIT5995 Tee Dee Back Plate Mount 500 Pacifiersea 50 Surgical Tubingi ott 300 Shipping $250 ea order Shipping paid orders over $6000 PRE- PAY OR COD/CA RES ADD 6-1/2% TAX .0 148 Model Aviation CPROTECHTOR PRO -MOUNT TRANSMITTER CASEENSINE foiiyotcttsineOtrOstt .is strong theenlo-6061-T6 aiuoinoss brightly molded metal framed softpolished reeCood foam filled 9olZot inmounting holes FOr 605 tarrying case best on120s 03 61 COOl 61 65 SI narhet trans-OPt 60 YS 61 tIC 05 60 Clitter Prices 13250 Add50 90 SOya 60 four tydest 3250 shipping Alaska322 En3o 90 12003 120 four tytie 325 Add 5150 Hawaii 1450ship Ca AK C Ni 3200 SASE FOR FREE CATALOGCA RESADD6 BERGERON ENTERPRISES 443 ROBERTAFULLERTON CA 92632