George M Myers Radio Thchnique 70 FmeliIldt Farm Rd Hicksvllle NY 11801 CORRECTION The correct telephone number TRC Engineering 616 453-8527 An incorrect number given last month Technique column specific criticisms called RC crystal swapping illegal claimed ICOM IC-R7000 receiver good enough use measuring transmitter power levels tests necessary certify transmitter meets AMA/RCHA Gold Sticker Silver Sticker performance toler ancesand technically qualified make latter statement 1 I used expression veal illegal crystal swapping rystal swapping produces off-frequency radiations andlor exces sive power sidebands illegal ICOM can detect did NOT say crystal swapping itself illegal 2 It MY opinion ICOM receiver unacceptable instrument determining whether transmitters radiations within lim its acceptable AMA Guidelines opinion expert witnesses recent AMA Frequency Committee meeting attended Yes admit didnt say much co lumn what DID say solid basis factand got information firsthand hope discussion will put cst further exchanges print relating matter Pacific Plan 1988-90 Since beginmng year have receiving requests readers 1988 Pacific Plan letter fail mentions club question has using Pacific Plan presented previously incidents RE problems have noticeably less before some letters readers also state fly places plan RE inter ference incidents numerous home field So must some people out have actually used plan found valuable asset existing Pacific Plan depends 25-ft space between flight stations can used RC38-56 use Channels RCJ2-34 restricted transmitters receivers conform AMA Guidelines no special arrangements should needed low end band five-station station setup Table 1 have scattered RC 12-34 around according Pa cific Plan should understand done avoid kind interference might happen someone used phony Gold Sticker low channels Once again insist credit Owen S Black George P Steiner both Sac ramento CA area inventing Pacific Plan have done make use have received several letters asking about spe cial arrangements sharing flying fields boats cars Typical Michael DAmico Indian River RC Society Palm Bay FL remember Mike young man LIRCS going off Air Force back 1972 Michael writes unty has 100 acres wants new idea recreational park ve RC boats cars planes 38 Model Aviation Rear view Kraft Mk IV transmitter containing Channel-Max frequency-synthesizing module Replace batteries take-apart situation showing battery pack re moved under signal-conditioning board disassembled visible photo plug added wiring hamess Isolate battery pack ABSTRACT Reply criticism June 88 col umn 1988 Pacific Plan Aircraft Surface Use Replacing transmitter batteries THE AUTHOR recent column another modeling publication took task about cer tain things said June 1988 Radio TABLE 1 72 MHzAircraft Only 40-kHz Raster StationABCDE GoldlSilverlOWBAM3850405242 transmitters4456465448 Gold Sticker2212241426 transmitters1630182820 3234 Kraft used pairs cells made pack got replacements SR Batteries running once may run frequency problems previously encountered Can help9 complicated question Michael Lets answer piece time First 75 MHz transmitters should pose problem aircraft 72 MHz vice versa So setup keeps people out Strike zone flying areasee Page 2 1988 AMA Membership Manual OK Pacific Plan Drivers Line setup 75 MHz shown Table 2 feasible wonder anyone would follow suggestion 27 MHz 50 MHz 53 MHz channels FCC-legal either aircraft surface vehi des poses problem several pos sible solutions might George Steiner suggests have single impound area transmitters may matter what pur pose pin used anticipate park people will want run impound because will give optimal control everything might try set up some kind frequency assignment scheme peculiar park such channel numbers alrcraft odd num bers surface use Ham CB might ask modelers surrender 27 MHz frequencies Surface people ask Hams use RCOO-09 Aircraft Only 53 MHz Surface Only Maybe club can find other accepta ble solutions As far 27 MHz concerned voice channels Hz RC channels Mo bile CR activity has dropped off parts country point RC alrcraft fly out significant problems Rut live metropol itan island 30 miles wide 120 miles long cant use mobile CR anything summer due saturation traffic channels Much boat-to-boat some truck-to-truck balance kid-to-kid new generation motormouths has sprouted hear over New England states Illegal CR power amplifiers have almost disap peared time time still hear trans mitter 10 adjacent channels RC sail boats pond interfered occasion ally So dont fly 27 MHz RC Long Island NY Buy yourself crystal-controlled CR plug RC receiver crystal use CB monitor intend flying 27 MHz have Table 3 distributed 27 MHz channels according Pacific Plan threw 27255 MHz doubt anyone would dumb enough use considering high power levels allowed other users 27255 MHz can voice transmissions on/at kHz displacement Ham RC channel Continued page 133 Adjustable side frames free-flow ventilation Extremely light weight added comfort Blocks harmful ultraviolet radiation ______ Attractive case included Wraparound fits comfortably over prescription glasses Quartz mist coated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work S1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious iniury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Secretary Treasurer Pikes Peak RC Club Prices include shipping handling flfl III See hobby dealer first inin If doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 0-842-7233 Cant US Mississippi 6011 924-9640 /MC B&P Associates Gives Total Fligbt Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field September 1988 39 PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT TABLE 2 75 MHzSurface Only StationA B C D E No stickers40 kHz 62 76 64 78 68 raster7082728074 84 PRICE REDUCTION SALE five models speed controls employ latest MOSFET/HEXFET technology feature tail safe timer shuts down motor event transmitter receiver receiver battery failure CompleteAssembled ModelParts Kitand TestedPCBMOSFETS EKE-24C$1950$2550$ 350$1250 EKE-7R$2500$3100$ 350$1800 EKE-7RM$2600$3200$ 350$1800 EKE-24U$2800$3600$ 800$1200 EKE-FR$4000$5000$1000$2400 EKE-FB$3500$4500$1000$1500 EKE-24U EB Upgrade Kit withorder$ 500 RBV-4$1595$1995$ 500 EKE-24C forward throttle uses ito 24 cells size 1X3X75 EKE-7R full forward half reverse handles 4 7 cells size 1x45x75 EKE-7RM mini version 7R size 14X27X6 EKE-24U micro version EKE-24C smaller existing micros EKE-FR full forward full reverse handles4to7cells size 14X2X6 EKE-FB isafull forward brake handles4to 14 cells size 14x2x6 speed controls fully proportional both directions RBV-4 san board receiver volt meter uses 10 leds three colors non-warranty repairs normally $1500 repair fee Please send $200 postage handling per order Also send SASE information assembled speed controls carry full 90 day warranty Enclosures heat sinks also available Mail ELDENoKEN ELECTRONICS INC ~vij PO Box 1853 Arvada Colorado 80001 today 303 431-1328 Sins MasleCard accepted pIus 4% TABLE 3 27 MHz Citizens Band Aircraft Surface Use No transmitter stickersSO kHz raster Sta ABCDE 27095 26995 27145 27045 27195 27255 Sparrow/Gardner Continued page 37 now dart straight up almost out sight happen have hot 15 20 will fine Please resist urge put 40 model Youd have rebalance airplane point would scarcely flyable unless engine three-quarters full throttle over burdened model would also very hard land Flying Careful trimming will help get out Sparrow Start about 3A5 aileron throw % ele vator throw 1 rudder throw Bal ance model point about % in front center-of-gravity plans Fly way several flights before change anything Quick isnt youll get used after few flights Once feel comfortable model can wring out bit begin get timing right move balance point back indi cated plans will make mod el little quicker yet will also release its snapping spinning potential Snapping maneuvers Sparrows strongest suit airplane will perform two full inside outside vertical snaps still heading straight up afterwards can partial snaps precision Granted intricate tricks like gliding three quarters outside snap knife-edge flight hard learn airplane happy doing Once have sharp ened timing youll find possi bilities almost limifless youre quick enough stirring sticks chances Sparrow will almost ma neuver days hauling flying larger model doesnt seem worth trouble model like Sparrow can really help keep edge Fly singular things alone can model isnt taken seriously least right off bat improvement flying skills definitely will Radio Technique/Myers Continued page 39 Hams required listen before transmit tends limit RE interference no guarantees Any quiet spot band can used Ham operator Charging ahead used Pacific Plan dis tribute Ham-band RC0O-09 channels shown Table 4 because 20-kHz raster because expect cur rent users can obtain Gold Sticker performance Hams should get together group insist moving everything Gold Sticker soon possible tainly 1991 AMA permits even-numbered chan nels sanctioned events Hams lib erty use 10 right now park makes Gold Sticker performance neces sary safe operation 53 MHz six-meter distribution Table 5 per Pacific Plan may neces sary due 100 kHz raster Replacing transmitter batteries times have noticed transmitter out put meter reads lower usual and/or operating time shorter used common problem cell bat tery pack has developed short circuit transmitter still under warranty probably send back manufacturer wait may out warranty and/or dont want wait Decision time find replace bad cell re place whole pack order make decision must re move pack transmitter Step disconnect pack mistakes can make working electronic circuit least forgivable damage components cause too lazy disconnect power supply momentary short circuit wrong place can destroy transmitters electronics So unplug battery pack can cut both wires cant simple matter put Deans connectors 19K54 $155 Ace RIC Inc Box 511E Higginsville MO 64037 cut ends wire want reassemble transmit ter Match wire colors install Deans connectors making sure male plug side transmitter pull pins out isolated contact provide means quick visual check connecting battery pack polarity reversed matter polarity Practically everyone uses Red k y Sribnick told particular case PCM trans mitters Futaha JR Red wire charger k wire meter necessary tool working batteriesand dont assume anything Now have pack hand put number cell using pen paper stick ers attach 20-ohm 10-watt resistor pack monitor voltage cell pack discharging Write down voltages cell five-minute intervals Keep discharg ing pack until cell reads 0 VDC Leave resistor connected wont hurt anything Looking list voltages will tell cells shorted start 0 VDC whether pack balanced cells get 0 VDC about same moment unbalanced dont pack unbalanced remove resistor charge pack overnight re peat test pack still unbalanced suggestion junk because another cell probably going fail Ace R/C sells kinds Ni-Cds probably can supply what needContinued page 134 SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 049 051S & 09S ALL CUSTOM & STOCK PARTS AVAILABLE INDIVIDUALLY MANY NEW PARTS FOR OLD DISCONTINUED COX ENGINES COX PROPS & GLOW HEADS COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES ALSO COMPLETE LINE OF RACING PARTS - GLO-BEE FIREBALL & K&B PLUGS SOLID LINES RACING WHEELS QUICK FILLS ETC WE ALSO STOCK CARBON FIBER KLOTZ OIL LATEX & SILICONE FUEL TUBING PEN BLADDER MATERIALS & HARDTO-FIND HARDWARE ESPECIALLY 2-56 & 3-48 SIZES COILS CONDENSERS NGK & STIlT PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP RUBBER BANDS KSB SEELIG & IGNITION TIMERS GAS & DIESEL FUEL TUBING TRANSISTOR IGNITION SYSTEMS RESISTOR HI-TENSION LEADS 1/2A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS EVERYTHING YOU NEED FOR OLD TIMER EVENTS September 1988 133 TABLE 4 50 MHz Ham Band AircraftlSurfacelOommunications Uses ARRL band plan recognizes assignment RC StalionABCDE 20-kHz raster0003010402 0705080609 OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPS I! CALL FOR IMMEDIATE SHIPMENT ON VISA OR MASTERCARD TABLE 5 6-Meter Ham Band Ai rcraft/Surface/CommuniCationS Uses 100-kHz raster Sta ABCDE 533531534532535 536537538 OLD TIMER SUPPLIES ORDER BY MAIL OR PHONE 619728-4365 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQUIRES INVITED MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $150 FOR INSURANCE ADD $100 ORDERS SHIPPED WITHIN 24 HOURS S ADD 6% TAX Z2ZtWincheEZ NEW SPACE SAVING CONTAINER FitsinYourBox 2Ax7%highx9% Tough Rigid Polyethylene udes Tubing eners Lock Tubing Through Cap ostage North Products PO Box 18419 Cleveland Heights OH 44118 II'I pack balanced cell shorted probably makes sense replace bad cell pair cells thats way packaged As can see pictures cells Kraft synthesizer transmitter packaged pairs replaced whole pack need transmitter Myers/Aberle tests want best contact friend Larry Sribnick SR Batteries Box 287 Bellport NY 11713 516 286-0079 SR can will supply packs connectors equipment manufactured Ace RJC Airtronics Cannon Cirrus Cox/Sanwa Futaba Kraft Tower some World Engines anything Deans con nector cant find source manufacturers connector can always use Deans Connectors Ace R/C see above contact SR help As example havent able find source Hi-Tee connec tor used Polks World Engines use Deans As cells themselves SR will suggest al ternatives like SR900s will fit place SOOs will make up packs special configu rations number cells L shapes stacked packs etc keep up-todate file original transmitter battery pack con figurations can make up literally pack need Though dont like doing SR will re place individual cells pack chafg ing $2 over cost materials giving pack full five-day test sequence insure worthy continued use Some manufacturers make battery pack replace ment simple plug-in matter Airtronlcs others make take apart transmitter af fair case Kraft faced latter situation least bit hesitant about making change turn prob lem over serviceman Check warranty first Im still vacation Happy flying Noise/Weiss Continued page 43 D Always build maintain air craft ensure minimum vibration levels Sounds vibrating pushrods loose fit tings loose coverings less-than-solid airframes contribute noise lot room research experimenta tion engine-mounting techniques related structural considerations E Last least some minor per formance compromises will sometimes necessary keep flying sites will ing accept open mind Once get familiar terms quieter aircraft will actually enjoy results effort Conclusions todays world us have no choice sound process model aircraft Much research work experimentation remain done little know right now can go long way toward reducing noise keeping flying fields hope manufacturers will get involved future since too have lot stake technology us today success depends applying specific problems Future research experimentation may provide bet ter methods meet lower sound objec tives have gratified other fliers club geographic area have shown greater awareness need fly quietlyand increasing interest involvement achieving goal breaking old habits developing new ones may find enjoy hobby past will really appreciate quieter models flight line Ive shared above information order fill needa need ef fective simple starting point embark upon sound proces sing approach quiet flight predict will new information new prod ucts appearing increasing rate meantime invest some time effort have fun above keep em flying RC AerobaticsNan Putte Continued page 45 Hed also like read about what expect bending moment center wing Obvi ously both topics tied together Ill work soon can Any other ideas RC Slope Soaring/Triebes Continued page 47 art system indispensable some competitive thermal flying and/or F3B As investing much money system really get what pay have inten tions continuing sport years come will undoubtedly run need such capabilities future true other things might well get best possible radio system can afford recently received letter Pierre Dume nil expressed very interesting idea malting videotape Slope Soaring finlshed will available clubs area would like get people involved Slope Soaring tape will great way show just what facet Soaring about Most people reluctant get involved something havent seen great way get Slope Soaring expo sure deserves talk Pierre sounds video going very highquality production shows aspects Slope Soaring youd like get copy videotape should available very soon just let know will pass word Pierre would like mention again will International Slope Race F3F Denmark sometime 1989 Anyone interested going either spectator competitor should get touch soon possible looks like will truly incredible event have urge go would highly rec ommend would really like thank whove sent letters and/or called response writings Slope Soaring response has greater ever imagined love help will able bring Slope Soaring forefront RC Soaring So keep letters photos calls coming 134 Model Aviation LiqIii LINE SYSTEMS P0 Box 1502 Lewiston 04241 FOAM CORE FLOATS PLANS AND KITS WE OFFER SELECTION OF FLOAT PLANS AND KITS FOR 4 12 POUND AIRPLANES WITH Y HULL ESIGN IN USE SINCE 1972 SEND SASE FOR CATALOG SHEET KIRCHER R/C PRODUCTS [NC 9 SHEFFIELD WAY CLARK NJ 07066 i A WE BUILD YOUR HELl TEST YOUR HELl PAIR YOUR HELl 322 North 7th St 64$ V11 Lehighton Pa 18235 WRITE OR CALL FOR INFORMA TION WOAL55 SOO5ST SCALP PHOtO SESVCP 500 PHOTO PACKS PLANS 3 VIEWS PHOTO-PACKS PLANS ENLARGING S*SE EnISr5O5 COPS lip Pepin&s Catalog $oo 60 pagesSCALE PlANS Eli PHOTO SERVICE 3209 Madsoo GeensOooo N C 27403 Phoop lnIal2a25239 INs ColleCt 77T L4TNES MILS lIETALS B00S PRECISI0N ISJSTR.MENTS - - CClIPFTE CAI$00 $200 IOn 8 SeIonR2 Sprngfo12 O8~ 43505 mpa 513 3220562 PAWU DIESELS Englands Finest 049 35 RIC STD Send $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 Send SSAE tsr catalog sheet complete line
Edition: Model Aviation - 1988/09
Page Numbers: 38, 39, 133, 134
George M Myers Radio Thchnique 70 FmeliIldt Farm Rd Hicksvllle NY 11801 CORRECTION The correct telephone number TRC Engineering 616 453-8527 An incorrect number given last month Technique column specific criticisms called RC crystal swapping illegal claimed ICOM IC-R7000 receiver good enough use measuring transmitter power levels tests necessary certify transmitter meets AMA/RCHA Gold Sticker Silver Sticker performance toler ancesand technically qualified make latter statement 1 I used expression veal illegal crystal swapping rystal swapping produces off-frequency radiations andlor exces sive power sidebands illegal ICOM can detect did NOT say crystal swapping itself illegal 2 It MY opinion ICOM receiver unacceptable instrument determining whether transmitters radiations within lim its acceptable AMA Guidelines opinion expert witnesses recent AMA Frequency Committee meeting attended Yes admit didnt say much co lumn what DID say solid basis factand got information firsthand hope discussion will put cst further exchanges print relating matter Pacific Plan 1988-90 Since beginmng year have receiving requests readers 1988 Pacific Plan letter fail mentions club question has using Pacific Plan presented previously incidents RE problems have noticeably less before some letters readers also state fly places plan RE inter ference incidents numerous home field So must some people out have actually used plan found valuable asset existing Pacific Plan depends 25-ft space between flight stations can used RC38-56 use Channels RCJ2-34 restricted transmitters receivers conform AMA Guidelines no special arrangements should needed low end band five-station station setup Table 1 have scattered RC 12-34 around according Pa cific Plan should understand done avoid kind interference might happen someone used phony Gold Sticker low channels Once again insist credit Owen S Black George P Steiner both Sac ramento CA area inventing Pacific Plan have done make use have received several letters asking about spe cial arrangements sharing flying fields boats cars Typical Michael DAmico Indian River RC Society Palm Bay FL remember Mike young man LIRCS going off Air Force back 1972 Michael writes unty has 100 acres wants new idea recreational park ve RC boats cars planes 38 Model Aviation Rear view Kraft Mk IV transmitter containing Channel-Max frequency-synthesizing module Replace batteries take-apart situation showing battery pack re moved under signal-conditioning board disassembled visible photo plug added wiring hamess Isolate battery pack ABSTRACT Reply criticism June 88 col umn 1988 Pacific Plan Aircraft Surface Use Replacing transmitter batteries THE AUTHOR recent column another modeling publication took task about cer tain things said June 1988 Radio TABLE 1 72 MHzAircraft Only 40-kHz Raster StationABCDE GoldlSilverlOWBAM3850405242 transmitters4456465448 Gold Sticker2212241426 transmitters1630182820 3234 Kraft used pairs cells made pack got replacements SR Batteries running once may run frequency problems previously encountered Can help9 complicated question Michael Lets answer piece time First 75 MHz transmitters should pose problem aircraft 72 MHz vice versa So setup keeps people out Strike zone flying areasee Page 2 1988 AMA Membership Manual OK Pacific Plan Drivers Line setup 75 MHz shown Table 2 feasible wonder anyone would follow suggestion 27 MHz 50 MHz 53 MHz channels FCC-legal either aircraft surface vehi des poses problem several pos sible solutions might George Steiner suggests have single impound area transmitters may matter what pur pose pin used anticipate park people will want run impound because will give optimal control everything might try set up some kind frequency assignment scheme peculiar park such channel numbers alrcraft odd num bers surface use Ham CB might ask modelers surrender 27 MHz frequencies Surface people ask Hams use RCOO-09 Aircraft Only 53 MHz Surface Only Maybe club can find other accepta ble solutions As far 27 MHz concerned voice channels Hz RC channels Mo bile CR activity has dropped off parts country point RC alrcraft fly out significant problems Rut live metropol itan island 30 miles wide 120 miles long cant use mobile CR anything summer due saturation traffic channels Much boat-to-boat some truck-to-truck balance kid-to-kid new generation motormouths has sprouted hear over New England states Illegal CR power amplifiers have almost disap peared time time still hear trans mitter 10 adjacent channels RC sail boats pond interfered occasion ally So dont fly 27 MHz RC Long Island NY Buy yourself crystal-controlled CR plug RC receiver crystal use CB monitor intend flying 27 MHz have Table 3 distributed 27 MHz channels according Pacific Plan threw 27255 MHz doubt anyone would dumb enough use considering high power levels allowed other users 27255 MHz can voice transmissions on/at kHz displacement Ham RC channel Continued page 133 Adjustable side frames free-flow ventilation Extremely light weight added comfort Blocks harmful ultraviolet radiation ______ Attractive case included Wraparound fits comfortably over prescription glasses Quartz mist coated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work S1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious iniury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Secretary Treasurer Pikes Peak RC Club Prices include shipping handling flfl III See hobby dealer first inin If doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 0-842-7233 Cant US Mississippi 6011 924-9640 /MC B&P Associates Gives Total Fligbt Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field September 1988 39 PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT TABLE 2 75 MHzSurface Only StationA B C D E No stickers40 kHz 62 76 64 78 68 raster7082728074 84 PRICE REDUCTION SALE five models speed controls employ latest MOSFET/HEXFET technology feature tail safe timer shuts down motor event transmitter receiver receiver battery failure CompleteAssembled ModelParts Kitand TestedPCBMOSFETS EKE-24C$1950$2550$ 350$1250 EKE-7R$2500$3100$ 350$1800 EKE-7RM$2600$3200$ 350$1800 EKE-24U$2800$3600$ 800$1200 EKE-FR$4000$5000$1000$2400 EKE-FB$3500$4500$1000$1500 EKE-24U EB Upgrade Kit withorder$ 500 RBV-4$1595$1995$ 500 EKE-24C forward throttle uses ito 24 cells size 1X3X75 EKE-7R full forward half reverse handles 4 7 cells size 1x45x75 EKE-7RM mini version 7R size 14X27X6 EKE-24U micro version EKE-24C smaller existing micros EKE-FR full forward full reverse handles4to7cells size 14X2X6 EKE-FB isafull forward brake handles4to 14 cells size 14x2x6 speed controls fully proportional both directions RBV-4 san board receiver volt meter uses 10 leds three colors non-warranty repairs normally $1500 repair fee Please send $200 postage handling per order Also send SASE information assembled speed controls carry full 90 day warranty Enclosures heat sinks also available Mail ELDENoKEN ELECTRONICS INC ~vij PO Box 1853 Arvada Colorado 80001 today 303 431-1328 Sins MasleCard accepted pIus 4% TABLE 3 27 MHz Citizens Band Aircraft Surface Use No transmitter stickersSO kHz raster Sta ABCDE 27095 26995 27145 27045 27195 27255 Sparrow/Gardner Continued page 37 now dart straight up almost out sight happen have hot 15 20 will fine Please resist urge put 40 model Youd have rebalance airplane point would scarcely flyable unless engine three-quarters full throttle over burdened model would also very hard land Flying Careful trimming will help get out Sparrow Start about 3A5 aileron throw % ele vator throw 1 rudder throw Bal ance model point about % in front center-of-gravity plans Fly way several flights before change anything Quick isnt youll get used after few flights Once feel comfortable model can wring out bit begin get timing right move balance point back indi cated plans will make mod el little quicker yet will also release its snapping spinning potential Snapping maneuvers Sparrows strongest suit airplane will perform two full inside outside vertical snaps still heading straight up afterwards can partial snaps precision Granted intricate tricks like gliding three quarters outside snap knife-edge flight hard learn airplane happy doing Once have sharp ened timing youll find possi bilities almost limifless youre quick enough stirring sticks chances Sparrow will almost ma neuver days hauling flying larger model doesnt seem worth trouble model like Sparrow can really help keep edge Fly singular things alone can model isnt taken seriously least right off bat improvement flying skills definitely will Radio Technique/Myers Continued page 39 Hams required listen before transmit tends limit RE interference no guarantees Any quiet spot band can used Ham operator Charging ahead used Pacific Plan dis tribute Ham-band RC0O-09 channels shown Table 4 because 20-kHz raster because expect cur rent users can obtain Gold Sticker performance Hams should get together group insist moving everything Gold Sticker soon possible tainly 1991 AMA permits even-numbered chan nels sanctioned events Hams lib erty use 10 right now park makes Gold Sticker performance neces sary safe operation 53 MHz six-meter distribution Table 5 per Pacific Plan may neces sary due 100 kHz raster Replacing transmitter batteries times have noticed transmitter out put meter reads lower usual and/or operating time shorter used common problem cell bat tery pack has developed short circuit transmitter still under warranty probably send back manufacturer wait may out warranty and/or dont want wait Decision time find replace bad cell re place whole pack order make decision must re move pack transmitter Step disconnect pack mistakes can make working electronic circuit least forgivable damage components cause too lazy disconnect power supply momentary short circuit wrong place can destroy transmitters electronics So unplug battery pack can cut both wires cant simple matter put Deans connectors 19K54 $155 Ace RIC Inc Box 511E Higginsville MO 64037 cut ends wire want reassemble transmit ter Match wire colors install Deans connectors making sure male plug side transmitter pull pins out isolated contact provide means quick visual check connecting battery pack polarity reversed matter polarity Practically everyone uses Red k y Sribnick told particular case PCM trans mitters Futaha JR Red wire charger k wire meter necessary tool working batteriesand dont assume anything Now have pack hand put number cell using pen paper stick ers attach 20-ohm 10-watt resistor pack monitor voltage cell pack discharging Write down voltages cell five-minute intervals Keep discharg ing pack until cell reads 0 VDC Leave resistor connected wont hurt anything Looking list voltages will tell cells shorted start 0 VDC whether pack balanced cells get 0 VDC about same moment unbalanced dont pack unbalanced remove resistor charge pack overnight re peat test pack still unbalanced suggestion junk because another cell probably going fail Ace R/C sells kinds Ni-Cds probably can supply what needContinued page 134 SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 049 051S & 09S ALL CUSTOM & STOCK PARTS AVAILABLE INDIVIDUALLY MANY NEW PARTS FOR OLD DISCONTINUED COX ENGINES COX PROPS & GLOW HEADS COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES ALSO COMPLETE LINE OF RACING PARTS - GLO-BEE FIREBALL & K&B PLUGS SOLID LINES RACING WHEELS QUICK FILLS ETC WE ALSO STOCK CARBON FIBER KLOTZ OIL LATEX & SILICONE FUEL TUBING PEN BLADDER MATERIALS & HARDTO-FIND HARDWARE ESPECIALLY 2-56 & 3-48 SIZES COILS CONDENSERS NGK & STIlT PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP RUBBER BANDS KSB SEELIG & IGNITION TIMERS GAS & DIESEL FUEL TUBING TRANSISTOR IGNITION SYSTEMS RESISTOR HI-TENSION LEADS 1/2A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS EVERYTHING YOU NEED FOR OLD TIMER EVENTS September 1988 133 TABLE 4 50 MHz Ham Band AircraftlSurfacelOommunications Uses ARRL band plan recognizes assignment RC StalionABCDE 20-kHz raster0003010402 0705080609 OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPS I! CALL FOR IMMEDIATE SHIPMENT ON VISA OR MASTERCARD TABLE 5 6-Meter Ham Band Ai rcraft/Surface/CommuniCationS Uses 100-kHz raster Sta ABCDE 533531534532535 536537538 OLD TIMER SUPPLIES ORDER BY MAIL OR PHONE 619728-4365 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQUIRES INVITED MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $150 FOR INSURANCE ADD $100 ORDERS SHIPPED WITHIN 24 HOURS S ADD 6% TAX Z2ZtWincheEZ NEW SPACE SAVING CONTAINER FitsinYourBox 2Ax7%highx9% Tough Rigid Polyethylene udes Tubing eners Lock Tubing Through Cap ostage North Products PO Box 18419 Cleveland Heights OH 44118 II'I pack balanced cell shorted probably makes sense replace bad cell pair cells thats way packaged As can see pictures cells Kraft synthesizer transmitter packaged pairs replaced whole pack need transmitter Myers/Aberle tests want best contact friend Larry Sribnick SR Batteries Box 287 Bellport NY 11713 516 286-0079 SR can will supply packs connectors equipment manufactured Ace RJC Airtronics Cannon Cirrus Cox/Sanwa Futaba Kraft Tower some World Engines anything Deans con nector cant find source manufacturers connector can always use Deans Connectors Ace R/C see above contact SR help As example havent able find source Hi-Tee connec tor used Polks World Engines use Deans As cells themselves SR will suggest al ternatives like SR900s will fit place SOOs will make up packs special configu rations number cells L shapes stacked packs etc keep up-todate file original transmitter battery pack con figurations can make up literally pack need Though dont like doing SR will re place individual cells pack chafg ing $2 over cost materials giving pack full five-day test sequence insure worthy continued use Some manufacturers make battery pack replace ment simple plug-in matter Airtronlcs others make take apart transmitter af fair case Kraft faced latter situation least bit hesitant about making change turn prob lem over serviceman Check warranty first Im still vacation Happy flying Noise/Weiss Continued page 43 D Always build maintain air craft ensure minimum vibration levels Sounds vibrating pushrods loose fit tings loose coverings less-than-solid airframes contribute noise lot room research experimenta tion engine-mounting techniques related structural considerations E Last least some minor per formance compromises will sometimes necessary keep flying sites will ing accept open mind Once get familiar terms quieter aircraft will actually enjoy results effort Conclusions todays world us have no choice sound process model aircraft Much research work experimentation remain done little know right now can go long way toward reducing noise keeping flying fields hope manufacturers will get involved future since too have lot stake technology us today success depends applying specific problems Future research experimentation may provide bet ter methods meet lower sound objec tives have gratified other fliers club geographic area have shown greater awareness need fly quietlyand increasing interest involvement achieving goal breaking old habits developing new ones may find enjoy hobby past will really appreciate quieter models flight line Ive shared above information order fill needa need ef fective simple starting point embark upon sound proces sing approach quiet flight predict will new information new prod ucts appearing increasing rate meantime invest some time effort have fun above keep em flying RC AerobaticsNan Putte Continued page 45 Hed also like read about what expect bending moment center wing Obvi ously both topics tied together Ill work soon can Any other ideas RC Slope Soaring/Triebes Continued page 47 art system indispensable some competitive thermal flying and/or F3B As investing much money system really get what pay have inten tions continuing sport years come will undoubtedly run need such capabilities future true other things might well get best possible radio system can afford recently received letter Pierre Dume nil expressed very interesting idea malting videotape Slope Soaring finlshed will available clubs area would like get people involved Slope Soaring tape will great way show just what facet Soaring about Most people reluctant get involved something havent seen great way get Slope Soaring expo sure deserves talk Pierre sounds video going very highquality production shows aspects Slope Soaring youd like get copy videotape should available very soon just let know will pass word Pierre would like mention again will International Slope Race F3F Denmark sometime 1989 Anyone interested going either spectator competitor should get touch soon possible looks like will truly incredible event have urge go would highly rec ommend would really like thank whove sent letters and/or called response writings Slope Soaring response has greater ever imagined love help will able bring Slope Soaring forefront RC Soaring So keep letters photos calls coming 134 Model Aviation LiqIii LINE SYSTEMS P0 Box 1502 Lewiston 04241 FOAM CORE FLOATS PLANS AND KITS WE OFFER SELECTION OF FLOAT PLANS AND KITS FOR 4 12 POUND AIRPLANES WITH Y HULL ESIGN IN USE SINCE 1972 SEND SASE FOR CATALOG SHEET KIRCHER R/C PRODUCTS [NC 9 SHEFFIELD WAY CLARK NJ 07066 i A WE BUILD YOUR HELl TEST YOUR HELl PAIR YOUR HELl 322 North 7th St 64$ V11 Lehighton Pa 18235 WRITE OR CALL FOR INFORMA TION WOAL55 SOO5ST SCALP PHOtO SESVCP 500 PHOTO PACKS PLANS 3 VIEWS PHOTO-PACKS PLANS ENLARGING S*SE EnISr5O5 COPS lip Pepin&s Catalog $oo 60 pagesSCALE PlANS Eli PHOTO SERVICE 3209 Madsoo GeensOooo N C 27403 Phoop lnIal2a25239 INs ColleCt 77T L4TNES MILS lIETALS B00S PRECISI0N ISJSTR.MENTS - - CClIPFTE CAI$00 $200 IOn 8 SeIonR2 Sprngfo12 O8~ 43505 mpa 513 3220562 PAWU DIESELS Englands Finest 049 35 RIC STD Send $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 Send SSAE tsr catalog sheet complete line
Edition: Model Aviation - 1988/09
Page Numbers: 38, 39, 133, 134
George M Myers Radio Thchnique 70 FmeliIldt Farm Rd Hicksvllle NY 11801 CORRECTION The correct telephone number TRC Engineering 616 453-8527 An incorrect number given last month Technique column specific criticisms called RC crystal swapping illegal claimed ICOM IC-R7000 receiver good enough use measuring transmitter power levels tests necessary certify transmitter meets AMA/RCHA Gold Sticker Silver Sticker performance toler ancesand technically qualified make latter statement 1 I used expression veal illegal crystal swapping rystal swapping produces off-frequency radiations andlor exces sive power sidebands illegal ICOM can detect did NOT say crystal swapping itself illegal 2 It MY opinion ICOM receiver unacceptable instrument determining whether transmitters radiations within lim its acceptable AMA Guidelines opinion expert witnesses recent AMA Frequency Committee meeting attended Yes admit didnt say much co lumn what DID say solid basis factand got information firsthand hope discussion will put cst further exchanges print relating matter Pacific Plan 1988-90 Since beginmng year have receiving requests readers 1988 Pacific Plan letter fail mentions club question has using Pacific Plan presented previously incidents RE problems have noticeably less before some letters readers also state fly places plan RE inter ference incidents numerous home field So must some people out have actually used plan found valuable asset existing Pacific Plan depends 25-ft space between flight stations can used RC38-56 use Channels RCJ2-34 restricted transmitters receivers conform AMA Guidelines no special arrangements should needed low end band five-station station setup Table 1 have scattered RC 12-34 around according Pa cific Plan should understand done avoid kind interference might happen someone used phony Gold Sticker low channels Once again insist credit Owen S Black George P Steiner both Sac ramento CA area inventing Pacific Plan have done make use have received several letters asking about spe cial arrangements sharing flying fields boats cars Typical Michael DAmico Indian River RC Society Palm Bay FL remember Mike young man LIRCS going off Air Force back 1972 Michael writes unty has 100 acres wants new idea recreational park ve RC boats cars planes 38 Model Aviation Rear view Kraft Mk IV transmitter containing Channel-Max frequency-synthesizing module Replace batteries take-apart situation showing battery pack re moved under signal-conditioning board disassembled visible photo plug added wiring hamess Isolate battery pack ABSTRACT Reply criticism June 88 col umn 1988 Pacific Plan Aircraft Surface Use Replacing transmitter batteries THE AUTHOR recent column another modeling publication took task about cer tain things said June 1988 Radio TABLE 1 72 MHzAircraft Only 40-kHz Raster StationABCDE GoldlSilverlOWBAM3850405242 transmitters4456465448 Gold Sticker2212241426 transmitters1630182820 3234 Kraft used pairs cells made pack got replacements SR Batteries running once may run frequency problems previously encountered Can help9 complicated question Michael Lets answer piece time First 75 MHz transmitters should pose problem aircraft 72 MHz vice versa So setup keeps people out Strike zone flying areasee Page 2 1988 AMA Membership Manual OK Pacific Plan Drivers Line setup 75 MHz shown Table 2 feasible wonder anyone would follow suggestion 27 MHz 50 MHz 53 MHz channels FCC-legal either aircraft surface vehi des poses problem several pos sible solutions might George Steiner suggests have single impound area transmitters may matter what pur pose pin used anticipate park people will want run impound because will give optimal control everything might try set up some kind frequency assignment scheme peculiar park such channel numbers alrcraft odd num bers surface use Ham CB might ask modelers surrender 27 MHz frequencies Surface people ask Hams use RCOO-09 Aircraft Only 53 MHz Surface Only Maybe club can find other accepta ble solutions As far 27 MHz concerned voice channels Hz RC channels Mo bile CR activity has dropped off parts country point RC alrcraft fly out significant problems Rut live metropol itan island 30 miles wide 120 miles long cant use mobile CR anything summer due saturation traffic channels Much boat-to-boat some truck-to-truck balance kid-to-kid new generation motormouths has sprouted hear over New England states Illegal CR power amplifiers have almost disap peared time time still hear trans mitter 10 adjacent channels RC sail boats pond interfered occasion ally So dont fly 27 MHz RC Long Island NY Buy yourself crystal-controlled CR plug RC receiver crystal use CB monitor intend flying 27 MHz have Table 3 distributed 27 MHz channels according Pacific Plan threw 27255 MHz doubt anyone would dumb enough use considering high power levels allowed other users 27255 MHz can voice transmissions on/at kHz displacement Ham RC channel Continued page 133 Adjustable side frames free-flow ventilation Extremely light weight added comfort Blocks harmful ultraviolet radiation ______ Attractive case included Wraparound fits comfortably over prescription glasses Quartz mist coated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work S1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious iniury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Secretary Treasurer Pikes Peak RC Club Prices include shipping handling flfl III See hobby dealer first inin If doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 0-842-7233 Cant US Mississippi 6011 924-9640 /MC B&P Associates Gives Total Fligbt Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field September 1988 39 PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT TABLE 2 75 MHzSurface Only StationA B C D E No stickers40 kHz 62 76 64 78 68 raster7082728074 84 PRICE REDUCTION SALE five models speed controls employ latest MOSFET/HEXFET technology feature tail safe timer shuts down motor event transmitter receiver receiver battery failure CompleteAssembled ModelParts Kitand TestedPCBMOSFETS EKE-24C$1950$2550$ 350$1250 EKE-7R$2500$3100$ 350$1800 EKE-7RM$2600$3200$ 350$1800 EKE-24U$2800$3600$ 800$1200 EKE-FR$4000$5000$1000$2400 EKE-FB$3500$4500$1000$1500 EKE-24U EB Upgrade Kit withorder$ 500 RBV-4$1595$1995$ 500 EKE-24C forward throttle uses ito 24 cells size 1X3X75 EKE-7R full forward half reverse handles 4 7 cells size 1x45x75 EKE-7RM mini version 7R size 14X27X6 EKE-24U micro version EKE-24C smaller existing micros EKE-FR full forward full reverse handles4to7cells size 14X2X6 EKE-FB isafull forward brake handles4to 14 cells size 14x2x6 speed controls fully proportional both directions RBV-4 san board receiver volt meter uses 10 leds three colors non-warranty repairs normally $1500 repair fee Please send $200 postage handling per order Also send SASE information assembled speed controls carry full 90 day warranty Enclosures heat sinks also available Mail ELDENoKEN ELECTRONICS INC ~vij PO Box 1853 Arvada Colorado 80001 today 303 431-1328 Sins MasleCard accepted pIus 4% TABLE 3 27 MHz Citizens Band Aircraft Surface Use No transmitter stickersSO kHz raster Sta ABCDE 27095 26995 27145 27045 27195 27255 Sparrow/Gardner Continued page 37 now dart straight up almost out sight happen have hot 15 20 will fine Please resist urge put 40 model Youd have rebalance airplane point would scarcely flyable unless engine three-quarters full throttle over burdened model would also very hard land Flying Careful trimming will help get out Sparrow Start about 3A5 aileron throw % ele vator throw 1 rudder throw Bal ance model point about % in front center-of-gravity plans Fly way several flights before change anything Quick isnt youll get used after few flights Once feel comfortable model can wring out bit begin get timing right move balance point back indi cated plans will make mod el little quicker yet will also release its snapping spinning potential Snapping maneuvers Sparrows strongest suit airplane will perform two full inside outside vertical snaps still heading straight up afterwards can partial snaps precision Granted intricate tricks like gliding three quarters outside snap knife-edge flight hard learn airplane happy doing Once have sharp ened timing youll find possi bilities almost limifless youre quick enough stirring sticks chances Sparrow will almost ma neuver days hauling flying larger model doesnt seem worth trouble model like Sparrow can really help keep edge Fly singular things alone can model isnt taken seriously least right off bat improvement flying skills definitely will Radio Technique/Myers Continued page 39 Hams required listen before transmit tends limit RE interference no guarantees Any quiet spot band can used Ham operator Charging ahead used Pacific Plan dis tribute Ham-band RC0O-09 channels shown Table 4 because 20-kHz raster because expect cur rent users can obtain Gold Sticker performance Hams should get together group insist moving everything Gold Sticker soon possible tainly 1991 AMA permits even-numbered chan nels sanctioned events Hams lib erty use 10 right now park makes Gold Sticker performance neces sary safe operation 53 MHz six-meter distribution Table 5 per Pacific Plan may neces sary due 100 kHz raster Replacing transmitter batteries times have noticed transmitter out put meter reads lower usual and/or operating time shorter used common problem cell bat tery pack has developed short circuit transmitter still under warranty probably send back manufacturer wait may out warranty and/or dont want wait Decision time find replace bad cell re place whole pack order make decision must re move pack transmitter Step disconnect pack mistakes can make working electronic circuit least forgivable damage components cause too lazy disconnect power supply momentary short circuit wrong place can destroy transmitters electronics So unplug battery pack can cut both wires cant simple matter put Deans connectors 19K54 $155 Ace RIC Inc Box 511E Higginsville MO 64037 cut ends wire want reassemble transmit ter Match wire colors install Deans connectors making sure male plug side transmitter pull pins out isolated contact provide means quick visual check connecting battery pack polarity reversed matter polarity Practically everyone uses Red k y Sribnick told particular case PCM trans mitters Futaha JR Red wire charger k wire meter necessary tool working batteriesand dont assume anything Now have pack hand put number cell using pen paper stick ers attach 20-ohm 10-watt resistor pack monitor voltage cell pack discharging Write down voltages cell five-minute intervals Keep discharg ing pack until cell reads 0 VDC Leave resistor connected wont hurt anything Looking list voltages will tell cells shorted start 0 VDC whether pack balanced cells get 0 VDC about same moment unbalanced dont pack unbalanced remove resistor charge pack overnight re peat test pack still unbalanced suggestion junk because another cell probably going fail Ace R/C sells kinds Ni-Cds probably can supply what needContinued page 134 SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 049 051S & 09S ALL CUSTOM & STOCK PARTS AVAILABLE INDIVIDUALLY MANY NEW PARTS FOR OLD DISCONTINUED COX ENGINES COX PROPS & GLOW HEADS COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES ALSO COMPLETE LINE OF RACING PARTS - GLO-BEE FIREBALL & K&B PLUGS SOLID LINES RACING WHEELS QUICK FILLS ETC WE ALSO STOCK CARBON FIBER KLOTZ OIL LATEX & SILICONE FUEL TUBING PEN BLADDER MATERIALS & HARDTO-FIND HARDWARE ESPECIALLY 2-56 & 3-48 SIZES COILS CONDENSERS NGK & STIlT PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP RUBBER BANDS KSB SEELIG & IGNITION TIMERS GAS & DIESEL FUEL TUBING TRANSISTOR IGNITION SYSTEMS RESISTOR HI-TENSION LEADS 1/2A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS EVERYTHING YOU NEED FOR OLD TIMER EVENTS September 1988 133 TABLE 4 50 MHz Ham Band AircraftlSurfacelOommunications Uses ARRL band plan recognizes assignment RC StalionABCDE 20-kHz raster0003010402 0705080609 OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPS I! CALL FOR IMMEDIATE SHIPMENT ON VISA OR MASTERCARD TABLE 5 6-Meter Ham Band Ai rcraft/Surface/CommuniCationS Uses 100-kHz raster Sta ABCDE 533531534532535 536537538 OLD TIMER SUPPLIES ORDER BY MAIL OR PHONE 619728-4365 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQUIRES INVITED MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $150 FOR INSURANCE ADD $100 ORDERS SHIPPED WITHIN 24 HOURS S ADD 6% TAX Z2ZtWincheEZ NEW SPACE SAVING CONTAINER FitsinYourBox 2Ax7%highx9% Tough Rigid Polyethylene udes Tubing eners Lock Tubing Through Cap ostage North Products PO Box 18419 Cleveland Heights OH 44118 II'I pack balanced cell shorted probably makes sense replace bad cell pair cells thats way packaged As can see pictures cells Kraft synthesizer transmitter packaged pairs replaced whole pack need transmitter Myers/Aberle tests want best contact friend Larry Sribnick SR Batteries Box 287 Bellport NY 11713 516 286-0079 SR can will supply packs connectors equipment manufactured Ace RJC Airtronics Cannon Cirrus Cox/Sanwa Futaba Kraft Tower some World Engines anything Deans con nector cant find source manufacturers connector can always use Deans Connectors Ace R/C see above contact SR help As example havent able find source Hi-Tee connec tor used Polks World Engines use Deans As cells themselves SR will suggest al ternatives like SR900s will fit place SOOs will make up packs special configu rations number cells L shapes stacked packs etc keep up-todate file original transmitter battery pack con figurations can make up literally pack need Though dont like doing SR will re place individual cells pack chafg ing $2 over cost materials giving pack full five-day test sequence insure worthy continued use Some manufacturers make battery pack replace ment simple plug-in matter Airtronlcs others make take apart transmitter af fair case Kraft faced latter situation least bit hesitant about making change turn prob lem over serviceman Check warranty first Im still vacation Happy flying Noise/Weiss Continued page 43 D Always build maintain air craft ensure minimum vibration levels Sounds vibrating pushrods loose fit tings loose coverings less-than-solid airframes contribute noise lot room research experimenta tion engine-mounting techniques related structural considerations E Last least some minor per formance compromises will sometimes necessary keep flying sites will ing accept open mind Once get familiar terms quieter aircraft will actually enjoy results effort Conclusions todays world us have no choice sound process model aircraft Much research work experimentation remain done little know right now can go long way toward reducing noise keeping flying fields hope manufacturers will get involved future since too have lot stake technology us today success depends applying specific problems Future research experimentation may provide bet ter methods meet lower sound objec tives have gratified other fliers club geographic area have shown greater awareness need fly quietlyand increasing interest involvement achieving goal breaking old habits developing new ones may find enjoy hobby past will really appreciate quieter models flight line Ive shared above information order fill needa need ef fective simple starting point embark upon sound proces sing approach quiet flight predict will new information new prod ucts appearing increasing rate meantime invest some time effort have fun above keep em flying RC AerobaticsNan Putte Continued page 45 Hed also like read about what expect bending moment center wing Obvi ously both topics tied together Ill work soon can Any other ideas RC Slope Soaring/Triebes Continued page 47 art system indispensable some competitive thermal flying and/or F3B As investing much money system really get what pay have inten tions continuing sport years come will undoubtedly run need such capabilities future true other things might well get best possible radio system can afford recently received letter Pierre Dume nil expressed very interesting idea malting videotape Slope Soaring finlshed will available clubs area would like get people involved Slope Soaring tape will great way show just what facet Soaring about Most people reluctant get involved something havent seen great way get Slope Soaring expo sure deserves talk Pierre sounds video going very highquality production shows aspects Slope Soaring youd like get copy videotape should available very soon just let know will pass word Pierre would like mention again will International Slope Race F3F Denmark sometime 1989 Anyone interested going either spectator competitor should get touch soon possible looks like will truly incredible event have urge go would highly rec ommend would really like thank whove sent letters and/or called response writings Slope Soaring response has greater ever imagined love help will able bring Slope Soaring forefront RC Soaring So keep letters photos calls coming 134 Model Aviation LiqIii LINE SYSTEMS P0 Box 1502 Lewiston 04241 FOAM CORE FLOATS PLANS AND KITS WE OFFER SELECTION OF FLOAT PLANS AND KITS FOR 4 12 POUND AIRPLANES WITH Y HULL ESIGN IN USE SINCE 1972 SEND SASE FOR CATALOG SHEET KIRCHER R/C PRODUCTS [NC 9 SHEFFIELD WAY CLARK NJ 07066 i A WE BUILD YOUR HELl TEST YOUR HELl PAIR YOUR HELl 322 North 7th St 64$ V11 Lehighton Pa 18235 WRITE OR CALL FOR INFORMA TION WOAL55 SOO5ST SCALP PHOtO SESVCP 500 PHOTO PACKS PLANS 3 VIEWS PHOTO-PACKS PLANS ENLARGING S*SE EnISr5O5 COPS lip Pepin&s Catalog $oo 60 pagesSCALE PlANS Eli PHOTO SERVICE 3209 Madsoo GeensOooo N C 27403 Phoop lnIal2a25239 INs ColleCt 77T L4TNES MILS lIETALS B00S PRECISI0N ISJSTR.MENTS - - CClIPFTE CAI$00 $200 IOn 8 SeIonR2 Sprngfo12 O8~ 43505 mpa 513 3220562 PAWU DIESELS Englands Finest 049 35 RIC STD Send $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 Send SSAE tsr catalog sheet complete line
Edition: Model Aviation - 1988/09
Page Numbers: 38, 39, 133, 134
George M Myers Radio Thchnique 70 FmeliIldt Farm Rd Hicksvllle NY 11801 CORRECTION The correct telephone number TRC Engineering 616 453-8527 An incorrect number given last month Technique column specific criticisms called RC crystal swapping illegal claimed ICOM IC-R7000 receiver good enough use measuring transmitter power levels tests necessary certify transmitter meets AMA/RCHA Gold Sticker Silver Sticker performance toler ancesand technically qualified make latter statement 1 I used expression veal illegal crystal swapping rystal swapping produces off-frequency radiations andlor exces sive power sidebands illegal ICOM can detect did NOT say crystal swapping itself illegal 2 It MY opinion ICOM receiver unacceptable instrument determining whether transmitters radiations within lim its acceptable AMA Guidelines opinion expert witnesses recent AMA Frequency Committee meeting attended Yes admit didnt say much co lumn what DID say solid basis factand got information firsthand hope discussion will put cst further exchanges print relating matter Pacific Plan 1988-90 Since beginmng year have receiving requests readers 1988 Pacific Plan letter fail mentions club question has using Pacific Plan presented previously incidents RE problems have noticeably less before some letters readers also state fly places plan RE inter ference incidents numerous home field So must some people out have actually used plan found valuable asset existing Pacific Plan depends 25-ft space between flight stations can used RC38-56 use Channels RCJ2-34 restricted transmitters receivers conform AMA Guidelines no special arrangements should needed low end band five-station station setup Table 1 have scattered RC 12-34 around according Pa cific Plan should understand done avoid kind interference might happen someone used phony Gold Sticker low channels Once again insist credit Owen S Black George P Steiner both Sac ramento CA area inventing Pacific Plan have done make use have received several letters asking about spe cial arrangements sharing flying fields boats cars Typical Michael DAmico Indian River RC Society Palm Bay FL remember Mike young man LIRCS going off Air Force back 1972 Michael writes unty has 100 acres wants new idea recreational park ve RC boats cars planes 38 Model Aviation Rear view Kraft Mk IV transmitter containing Channel-Max frequency-synthesizing module Replace batteries take-apart situation showing battery pack re moved under signal-conditioning board disassembled visible photo plug added wiring hamess Isolate battery pack ABSTRACT Reply criticism June 88 col umn 1988 Pacific Plan Aircraft Surface Use Replacing transmitter batteries THE AUTHOR recent column another modeling publication took task about cer tain things said June 1988 Radio TABLE 1 72 MHzAircraft Only 40-kHz Raster StationABCDE GoldlSilverlOWBAM3850405242 transmitters4456465448 Gold Sticker2212241426 transmitters1630182820 3234 Kraft used pairs cells made pack got replacements SR Batteries running once may run frequency problems previously encountered Can help9 complicated question Michael Lets answer piece time First 75 MHz transmitters should pose problem aircraft 72 MHz vice versa So setup keeps people out Strike zone flying areasee Page 2 1988 AMA Membership Manual OK Pacific Plan Drivers Line setup 75 MHz shown Table 2 feasible wonder anyone would follow suggestion 27 MHz 50 MHz 53 MHz channels FCC-legal either aircraft surface vehi des poses problem several pos sible solutions might George Steiner suggests have single impound area transmitters may matter what pur pose pin used anticipate park people will want run impound because will give optimal control everything might try set up some kind frequency assignment scheme peculiar park such channel numbers alrcraft odd num bers surface use Ham CB might ask modelers surrender 27 MHz frequencies Surface people ask Hams use RCOO-09 Aircraft Only 53 MHz Surface Only Maybe club can find other accepta ble solutions As far 27 MHz concerned voice channels Hz RC channels Mo bile CR activity has dropped off parts country point RC alrcraft fly out significant problems Rut live metropol itan island 30 miles wide 120 miles long cant use mobile CR anything summer due saturation traffic channels Much boat-to-boat some truck-to-truck balance kid-to-kid new generation motormouths has sprouted hear over New England states Illegal CR power amplifiers have almost disap peared time time still hear trans mitter 10 adjacent channels RC sail boats pond interfered occasion ally So dont fly 27 MHz RC Long Island NY Buy yourself crystal-controlled CR plug RC receiver crystal use CB monitor intend flying 27 MHz have Table 3 distributed 27 MHz channels according Pacific Plan threw 27255 MHz doubt anyone would dumb enough use considering high power levels allowed other users 27255 MHz can voice transmissions on/at kHz displacement Ham RC channel Continued page 133 Adjustable side frames free-flow ventilation Extremely light weight added comfort Blocks harmful ultraviolet radiation ______ Attractive case included Wraparound fits comfortably over prescription glasses Quartz mist coated scratch resistance Made entirely Polycarbonate impact protection ANSI Z871 specifications Available in Clear shop work S1325 Amber overcast days & late afternoons S14~ Gray S14~ & Mirror S19~ sunny days CA Mask S15~ Paint Mask S2O~ member club hit prop blade thrown 60 engine close range tip blade struck Safety Plus glasses saved him serious iniury possibly loss eye incident convinced everyone should wear safety glasses near model airplane engines being run upEd Saul Secretary Treasurer Pikes Peak RC Club Prices include shipping handling flfl III See hobby dealer first inin If doesnt have what need order direct SAFETY PLUS PO Box 1173 Dept iM Clinton MS 39056 ORDERS ONLY 0-842-7233 Cant US Mississippi 6011 924-9640 /MC B&P Associates Gives Total Fligbt Line FREEDOM battery needs call write B&P Associates PO Box 22054 Waco TX 76702-2054 817662-5587 new electric starter battery pack cuts cord has always tied starter power panel Discover freedom being able start plane wherever added safety less wire get caught prop charge hefty 4 Amp/hour pack will take through weekend flying power enough spare dont stop have Ni-Cads virtually size imaginable cut experimenter free design whatever takes make yours best setup field September 1988 39 PILOT GLASSES. HOW VALUABLE IS YOUR EYESIGHT TABLE 2 75 MHzSurface Only StationA B C D E No stickers40 kHz 62 76 64 78 68 raster7082728074 84 PRICE REDUCTION SALE five models speed controls employ latest MOSFET/HEXFET technology feature tail safe timer shuts down motor event transmitter receiver receiver battery failure CompleteAssembled ModelParts Kitand TestedPCBMOSFETS EKE-24C$1950$2550$ 350$1250 EKE-7R$2500$3100$ 350$1800 EKE-7RM$2600$3200$ 350$1800 EKE-24U$2800$3600$ 800$1200 EKE-FR$4000$5000$1000$2400 EKE-FB$3500$4500$1000$1500 EKE-24U EB Upgrade Kit withorder$ 500 RBV-4$1595$1995$ 500 EKE-24C forward throttle uses ito 24 cells size 1X3X75 EKE-7R full forward half reverse handles 4 7 cells size 1x45x75 EKE-7RM mini version 7R size 14X27X6 EKE-24U micro version EKE-24C smaller existing micros EKE-FR full forward full reverse handles4to7cells size 14X2X6 EKE-FB isafull forward brake handles4to 14 cells size 14x2x6 speed controls fully proportional both directions RBV-4 san board receiver volt meter uses 10 leds three colors non-warranty repairs normally $1500 repair fee Please send $200 postage handling per order Also send SASE information assembled speed controls carry full 90 day warranty Enclosures heat sinks also available Mail ELDENoKEN ELECTRONICS INC ~vij PO Box 1853 Arvada Colorado 80001 today 303 431-1328 Sins MasleCard accepted pIus 4% TABLE 3 27 MHz Citizens Band Aircraft Surface Use No transmitter stickersSO kHz raster Sta ABCDE 27095 26995 27145 27045 27195 27255 Sparrow/Gardner Continued page 37 now dart straight up almost out sight happen have hot 15 20 will fine Please resist urge put 40 model Youd have rebalance airplane point would scarcely flyable unless engine three-quarters full throttle over burdened model would also very hard land Flying Careful trimming will help get out Sparrow Start about 3A5 aileron throw % ele vator throw 1 rudder throw Bal ance model point about % in front center-of-gravity plans Fly way several flights before change anything Quick isnt youll get used after few flights Once feel comfortable model can wring out bit begin get timing right move balance point back indi cated plans will make mod el little quicker yet will also release its snapping spinning potential Snapping maneuvers Sparrows strongest suit airplane will perform two full inside outside vertical snaps still heading straight up afterwards can partial snaps precision Granted intricate tricks like gliding three quarters outside snap knife-edge flight hard learn airplane happy doing Once have sharp ened timing youll find possi bilities almost limifless youre quick enough stirring sticks chances Sparrow will almost ma neuver days hauling flying larger model doesnt seem worth trouble model like Sparrow can really help keep edge Fly singular things alone can model isnt taken seriously least right off bat improvement flying skills definitely will Radio Technique/Myers Continued page 39 Hams required listen before transmit tends limit RE interference no guarantees Any quiet spot band can used Ham operator Charging ahead used Pacific Plan dis tribute Ham-band RC0O-09 channels shown Table 4 because 20-kHz raster because expect cur rent users can obtain Gold Sticker performance Hams should get together group insist moving everything Gold Sticker soon possible tainly 1991 AMA permits even-numbered chan nels sanctioned events Hams lib erty use 10 right now park makes Gold Sticker performance neces sary safe operation 53 MHz six-meter distribution Table 5 per Pacific Plan may neces sary due 100 kHz raster Replacing transmitter batteries times have noticed transmitter out put meter reads lower usual and/or operating time shorter used common problem cell bat tery pack has developed short circuit transmitter still under warranty probably send back manufacturer wait may out warranty and/or dont want wait Decision time find replace bad cell re place whole pack order make decision must re move pack transmitter Step disconnect pack mistakes can make working electronic circuit least forgivable damage components cause too lazy disconnect power supply momentary short circuit wrong place can destroy transmitters electronics So unplug battery pack can cut both wires cant simple matter put Deans connectors 19K54 $155 Ace RIC Inc Box 511E Higginsville MO 64037 cut ends wire want reassemble transmit ter Match wire colors install Deans connectors making sure male plug side transmitter pull pins out isolated contact provide means quick visual check connecting battery pack polarity reversed matter polarity Practically everyone uses Red k y Sribnick told particular case PCM trans mitters Futaha JR Red wire charger k wire meter necessary tool working batteriesand dont assume anything Now have pack hand put number cell using pen paper stick ers attach 20-ohm 10-watt resistor pack monitor voltage cell pack discharging Write down voltages cell five-minute intervals Keep discharg ing pack until cell reads 0 VDC Leave resistor connected wont hurt anything Looking list voltages will tell cells shorted start 0 VDC whether pack balanced cells get 0 VDC about same moment unbalanced dont pack unbalanced remove resistor charge pack overnight re peat test pack still unbalanced suggestion junk because another cell probably going fail Ace R/C sells kinds Ni-Cds probably can supply what needContinued page 134 SPECIALISTS IN CUSTOM COX TEE DEE & REED ENGINES 020S 049 051S & 09S ALL CUSTOM & STOCK PARTS AVAILABLE INDIVIDUALLY MANY NEW PARTS FOR OLD DISCONTINUED COX ENGINES COX PROPS & GLOW HEADS COMPETITION ACCESSORIES & CUSTOMIZED K&B ENGINES ALSO COMPLETE LINE OF RACING PARTS - GLO-BEE FIREBALL & K&B PLUGS SOLID LINES RACING WHEELS QUICK FILLS ETC WE ALSO STOCK CARBON FIBER KLOTZ OIL LATEX & SILICONE FUEL TUBING PEN BLADDER MATERIALS & HARDTO-FIND HARDWARE ESPECIALLY 2-56 & 3-48 SIZES COILS CONDENSERS NGK & STIlT PLUGS SILK 12 COLORS QUALITY DOPE BRUSHES 5 & 7 LOOP RUBBER BANDS KSB SEELIG & IGNITION TIMERS GAS & DIESEL FUEL TUBING TRANSISTOR IGNITION SYSTEMS RESISTOR HI-TENSION LEADS 1/2A TEXACO PLAYBOY SR KIT 1/2A TEXACO ENGINES & PARTS EVERYTHING YOU NEED FOR OLD TIMER EVENTS September 1988 133 TABLE 4 50 MHz Ham Band AircraftlSurfacelOommunications Uses ARRL band plan recognizes assignment RC StalionABCDE 20-kHz raster0003010402 0705080609 OUR REV-UP INVENTORY AVERAGES OVER 9000 PROPS I! CALL FOR IMMEDIATE SHIPMENT ON VISA OR MASTERCARD TABLE 5 6-Meter Ham Band Ai rcraft/Surface/CommuniCationS Uses 100-kHz raster Sta ABCDE 533531534532535 536537538 OLD TIMER SUPPLIES ORDER BY MAIL OR PHONE 619728-4365 SORRY NO COD VISA & MASTERCARD WELCOME DEALER INQUIRES INVITED MINIMUM MERCHANDISE ORDER $1000 SHIPPING & HANDLING FEE $150 FOR INSURANCE ADD $100 ORDERS SHIPPED WITHIN 24 HOURS S ADD 6% TAX Z2ZtWincheEZ NEW SPACE SAVING CONTAINER FitsinYourBox 2Ax7%highx9% Tough Rigid Polyethylene udes Tubing eners Lock Tubing Through Cap ostage North Products PO Box 18419 Cleveland Heights OH 44118 II'I pack balanced cell shorted probably makes sense replace bad cell pair cells thats way packaged As can see pictures cells Kraft synthesizer transmitter packaged pairs replaced whole pack need transmitter Myers/Aberle tests want best contact friend Larry Sribnick SR Batteries Box 287 Bellport NY 11713 516 286-0079 SR can will supply packs connectors equipment manufactured Ace RJC Airtronics Cannon Cirrus Cox/Sanwa Futaba Kraft Tower some World Engines anything Deans con nector cant find source manufacturers connector can always use Deans Connectors Ace R/C see above contact SR help As example havent able find source Hi-Tee connec tor used Polks World Engines use Deans As cells themselves SR will suggest al ternatives like SR900s will fit place SOOs will make up packs special configu rations number cells L shapes stacked packs etc keep up-todate file original transmitter battery pack con figurations can make up literally pack need Though dont like doing SR will re place individual cells pack chafg ing $2 over cost materials giving pack full five-day test sequence insure worthy continued use Some manufacturers make battery pack replace ment simple plug-in matter Airtronlcs others make take apart transmitter af fair case Kraft faced latter situation least bit hesitant about making change turn prob lem over serviceman Check warranty first Im still vacation Happy flying Noise/Weiss Continued page 43 D Always build maintain air craft ensure minimum vibration levels Sounds vibrating pushrods loose fit tings loose coverings less-than-solid airframes contribute noise lot room research experimenta tion engine-mounting techniques related structural considerations E Last least some minor per formance compromises will sometimes necessary keep flying sites will ing accept open mind Once get familiar terms quieter aircraft will actually enjoy results effort Conclusions todays world us have no choice sound process model aircraft Much research work experimentation remain done little know right now can go long way toward reducing noise keeping flying fields hope manufacturers will get involved future since too have lot stake technology us today success depends applying specific problems Future research experimentation may provide bet ter methods meet lower sound objec tives have gratified other fliers club geographic area have shown greater awareness need fly quietlyand increasing interest involvement achieving goal breaking old habits developing new ones may find enjoy hobby past will really appreciate quieter models flight line Ive shared above information order fill needa need ef fective simple starting point embark upon sound proces sing approach quiet flight predict will new information new prod ucts appearing increasing rate meantime invest some time effort have fun above keep em flying RC AerobaticsNan Putte Continued page 45 Hed also like read about what expect bending moment center wing Obvi ously both topics tied together Ill work soon can Any other ideas RC Slope Soaring/Triebes Continued page 47 art system indispensable some competitive thermal flying and/or F3B As investing much money system really get what pay have inten tions continuing sport years come will undoubtedly run need such capabilities future true other things might well get best possible radio system can afford recently received letter Pierre Dume nil expressed very interesting idea malting videotape Slope Soaring finlshed will available clubs area would like get people involved Slope Soaring tape will great way show just what facet Soaring about Most people reluctant get involved something havent seen great way get Slope Soaring expo sure deserves talk Pierre sounds video going very highquality production shows aspects Slope Soaring youd like get copy videotape should available very soon just let know will pass word Pierre would like mention again will International Slope Race F3F Denmark sometime 1989 Anyone interested going either spectator competitor should get touch soon possible looks like will truly incredible event have urge go would highly rec ommend would really like thank whove sent letters and/or called response writings Slope Soaring response has greater ever imagined love help will able bring Slope Soaring forefront RC Soaring So keep letters photos calls coming 134 Model Aviation LiqIii LINE SYSTEMS P0 Box 1502 Lewiston 04241 FOAM CORE FLOATS PLANS AND KITS WE OFFER SELECTION OF FLOAT PLANS AND KITS FOR 4 12 POUND AIRPLANES WITH Y HULL ESIGN IN USE SINCE 1972 SEND SASE FOR CATALOG SHEET KIRCHER R/C PRODUCTS [NC 9 SHEFFIELD WAY CLARK NJ 07066 i A WE BUILD YOUR HELl TEST YOUR HELl PAIR YOUR HELl 322 North 7th St 64$ V11 Lehighton Pa 18235 WRITE OR CALL FOR INFORMA TION WOAL55 SOO5ST SCALP PHOtO SESVCP 500 PHOTO PACKS PLANS 3 VIEWS PHOTO-PACKS PLANS ENLARGING S*SE EnISr5O5 COPS lip Pepin&s Catalog $oo 60 pagesSCALE PlANS Eli PHOTO SERVICE 3209 Madsoo GeensOooo N C 27403 Phoop lnIal2a25239 INs ColleCt 77T L4TNES MILS lIETALS B00S PRECISI0N ISJSTR.MENTS - - CClIPFTE CAI$00 $200 IOn 8 SeIonR2 Sprngfo12 O8~ 43505 mpa 513 3220562 PAWU DIESELS Englands Finest 049 35 RIC STD Send $100 list Eric Clutton 913 Cedar Lane Tullahoma Tenn 37388 Send SSAE tsr catalog sheet complete line