WRAM Show '82: The Year of the Receiver

George M Myer KV7 0 95 LAST YEAR reported WRAM West chester Radio Aero Modelers Inc Show year Chip NE5044 told manufacturers process shifting transmitter designs new cheap er design would offer servo travel reversing mixing control conditioning LIN/XPO/Dual Rate other sophistications started Ace RC Silver Seven has spread such labels Airtronics XL Circus Hobbies Kraft Futaba World Engines Im sure youve observed year emphasis receivers worth noting new transmitters designed new RC channels mind Theyre ready use odd-number chan nels 20KHz apart right now Some previous transmitter designs also qualify thats subject another column Ill say now AMA Frequency Committee has examined lot manufacturers type-certifi cation records found better things expected find As write FCC has released NPRM Notice Proposed Rulemaking need continue process toward 80 new channels However surveyed manufacturers represented WRAM Show found have working new receivers suit new narrow-band channels general US manufacturers saying 14 Model Aviation George has used Circus Hobbies JR Apollo receiver reprasent new breed receiver will required let RC flying survive coming new-channel confusion Voull notice new-design receiver has eight canned transformers replaceable crystal Look report Apollo future column Nick Ziroli father son showed new 1/5-scale North American AT-6 Texan Nick Sr holding plans built-up wings tail fuselage cowl exquisitely-done fiber glass Can new class Pylon Racing far behind working Japanese manu facturers saying ready sell soon R&O Report Order takes effect exactly what expected find because Japanese have selling narrow-band equipment European market years no consensus Some manufacturers talk replaceable crystals others speak replaceable modules synthesize appropriate frequencies Both use crystals synthesizer uses common crystal channels replaceable-crystal design needs separate crystal pair trans mitter receiver channel replaceable-crystal approach has two sig nificant drawbacks 1 An inventory crystal pairs 80 different channels exceedingly expensive some say prohibitively expensive 2 The crystal manufacturers dont want set up production lines get small number crystals hobby will need second quibble reflects thing wrong world today. trend toward supra-National Super-Corporations size prohibits taking small jobs progress stifled favor continuous produc tion obsolete common designs Have noticed perhaps hard tell auto mobile another regardless country origin J.ets get back receivers fundamental issue new receiver bandwidth Existing receiver designs cant tuned well enough survive narrow-band environment other hand achieve narrow-band performance have worry about stability narrow-band system has proportionally less room accept transmitter frequency drifting way receiver tuning drifts other solution problem voltage regulation Im sure have observed NE5044 NE5 045 receiver chips feature voltage regulation ever voltage regulation isnt need Drift also caused temperature changes narrow-band system also requires tempera ture compensation general means higher-quality expensive components must used may also necessary put crystals other frequency-determining com ponents inside little insulated heated enclo sures Everyone shudders suggest continued page 16 June 198215 Rich Urevichs new 15-powered AT-6 Texan designed specifically Pylon Racing con struction article model appeared May1982 edition ModelAirplane News George reports several area modelers already have birds flying preparation inaugural series Pylon Races design will held July 1982 Further details race schedule rules obtainable Rich MAN offices Charlie Cannon petite tail appreciate fact Pattern plane holding belongs hubby Bill powered G-Mark 03 engine Yep thats little halfthesizeofanormalAplane Naturally uses 4-ch Cannon Micro radio Kraft showing neir new lTorelgn-ouiIti -4 servo eorge nas tested ne pro nounces good amplifier doesnt care what frame-rate yourtransmitter uses wide variety output devices provided fit its splined output shafta departure Krafts usual snuare outnut shaft AMA District II meeting John Byrne District II Vice-President listens attentively member asks question about - s what osed new RC frequencies Its incredible heres true Epoxy Point thats Pre-mixed. can! 0O 9 q ERITES BLACK PAQRON IPAO p8Iflt No pot life ixing proof Lightweight r tough a Flexible C0VERITE 420 BABYLON ROAD/HORSHAM PA 19044 & 11011 %11IA\Y D[CKMAHFR First TimePOST OFFICE BOX 308THOMASJ MAHER tit trIjs(ITAPJAS CITY MICHIGAN 48763 PHONE 517 362-6078 011 PSITE OWIIIL4 TI CALE CH 03ATYPE B9VAL 70 5 Span60 90 Po 5228 00 WE THINK YOU WILL AGREE THAT THEY ARE THE nEST NAWLLTD0 KITS YET FUSALAGE WINGS TAIL SURFACES WHITE EPOXY FINISH READY FOR PAINT & OFTAILING EURATHANE FOAM RIGIDLY SUPPORTS EPOXY GELL COAT FIBERGLASS REINFORCED AT STRESS POINTS ONLY ASSFMBLY INSTALLATION OF EOUIPMENT & PAINTING REGUIRED SCALE WHEELS INCLUDED NO NEED TO COVER WITH BALSA SHEET OR FILM SUPERIOR PRODUCT NO Whole Loe LeO CLUBS CHECK OUT OUR SPECIAL INTRODUCTORY OFFER SNJ HARVARD U63 3/8 Span 0 Power Si 8800 Simple fact such enclosures have part high-precision radio systems since beginning radio Right now little ovens looked upon last resorl due considerations cost weight complexity Most folks look small plastic boxes called replaceable modules economic solution suspect theyre right Synthesizers vs replaceable crystals Replace able crystals vs modules AM vs FM issues separate various manufac turers approaches Glen Toma Futaba told FM modules G series ready waiting Futaba will phase out AM soon possible Circus Hobbies look ing replaceable crystals switch FM modules Fred Marks Ace RC member AMA Frequency Committee has strong personal opposition idea replaceable crystals prefers AM Butch Lanterman World Engines has quoted working synthesized transmitter Bruce Batch doing business Full Command Sys tems 908 E Rosewood Spokane WA 99207 has advertised See synthesized Radio Toledo spoke Mr Schwing EMS Mr Figelski Litco both favored synthesizers because small manufacturers cost crystals viewed prohibitively expensive men people have listen because will make happen whatever turns out MRC will go modules Kraft isnt saying theyve both AM FM modules years Kraft ready either way broached synthesizer/replaceable crystal issue report local club reactions ranged boredom violent opposition least club member spent lot club time campaigning against idea frequencychanging switch transmitter think whole argument goes away manufacturer puts frequency-changing switch module module has removed let get switch No matter what done realize frequency control will become bigger problem Perhaps AMA Frequency Committee should prepare recom mended approach problem have Continued page 92 16 Model Aviation Bob Aberle CR AMA Frequency Committee chairman receives AMA Distinguished Service Award AMA District II VicePresident John Byrne Bob wears newlyawarded Howard McEntee Memorial Award presented WRAMS Bob Hunt photo Photo s snown necossari p nose completed Kits P47 Military Scale $180 INCLUDES Top Flight P-47 kit Rhom retracts Aerosport 6 channel radio 5 servos Fox Eagle 60 engine J-3 CUB Quarter Scale $227 INCLUDESBud Nosen 1/4 scale J-3 Cub kit Kraft 4 channel radio rvos Quadra engine mount & props S212 Super Hustler engine SUPER KAOS Fast & Fun $185 INCLUDES Bridi Super Kaos kit Proline 5 channel radio 4 servos OX Max 60 engine $205 Rhom retracts items shown plus HUNDREDS others individually offered sale recent issues Hobby Swap News model en thusiasts Used Equipment Guide BuySell-Trade first ad tree 50 words max subscription $10/yr 10 issues $19/2yr. $27/3yr Add $3/yr 1st class mail Canada & Mexico must use 1st class rates other countries write first MC & Visa Accepted include numbers expiration date Expect 4 8 weeks delivery 1st issue address changes Submit free ad B&W photo $2 extra subscription orders Hobby Swap News Dept AR-3 PO Box 834 Santa Marta CA 93456 LOWERING THE COST OF HAVING FUN Safety Preston Continued page 12 batteries backwards zapping charger friend did case hooking up batteries charger caused red charg ing indicator light glow before power cord charger inserted wall outlet should have alerted him something amiss since light tell batteries indeed being charged think glows after unit plugged AC source Failure indi cator glow could mean plugged switched outlet didnt turn wall switch could mean blown fuse also might have left transmitter receiver switch thereby connecting batteries Tx Rx circuitry instead charger friend thinks son charger recently loaned may have reversed polarity output plug match different brand radio Whatever reason result defunct charger story somewhat different occurred least eight years ago purchased some wet cell Ni-Cds club auction use starting batteries automotive battery charger cumbersome equipped Variac pressed service charge up batteries Some time later another club auc tion purchased small plug-in-the-wall charger tl Brand X variety paper sticker marked 1 2V wanted charge 12-volt gel-cell field box worked perfectly some time came night error thinking tried charge two wet-cell starting Ni-Cds connected series using small 2V charger charger kind equipped indicator light covered amber lens lets know allis well its use guess light also serves fuse since isnt other fuse circuitry connected two starting Ni-Cds did appear indicator light somewhat brighter normal late night brain didnt register anything amiss some reason dont remember what occasion return workshop before turning night immediately apparent problem some kind since strong odor burning insulation glance charger took diagnose source since brown sticky substance exuding its bottom indicator light bulb didnt blow dont know Presumably though current too much forthe chargers transformer handle still below rating bulb chargers metal case too hot pull out wall socket protection rag hand often break out goose bumps think what might have happened handt made return trip workshop prior hitting sack Its possible might have ended up different author pages moral stories unless know what youre doing dont mess around electrical equipment now have decent VOM think must serious modeler Micronta Radio Shack brand Cat No 22-207A isnt cheap est model Radio Shack sale catalog arrived just yesterday has Micronta VOM No 22-204 plenty good enough other serious electroncis hobbyist its sale price $2488 have number cheaper models too periodically will go sale closing months column wed like thank responded request infor mation allergic reactions epoxy glues appeared March 1982 issue will talk about after have-run down some leads provided readers Mean have experienced allergic reac tion epoxy buy small fan work shop keep glue off hands Have safe month John Preston 7012 Elvira Ct Falls Church VA 22042 WRAM Show/Myers Continued page 16 prepared recommended Phase-In Plan protect use old sets long possible Frequency-Flag Plan get away foreign streamers weak pastels cant tell orange brown red and/or dirty yellow Logic dictates eventually transmitters receivers will have synthesizers fre quency-changing switches few bucks transmitter could have monitor receiver built before switching transmitter could switch monitor make sure no nearby using frequency wouldnt protect inter ference coming somewhere off field would keep shooting buddy down being shot down yourself transmitter left impound area could worked transmitter switch would have go through Monitor position get the Transmit position Being Transmit would disable monitor wouldnt driven nutty noise Something manufacturers think about havent already went WRAM Show ask question What willing say publication about companys response impending change RC channels As reporter think its job ask questions would ask bore until believe answer Thats what did answer Anyone selling European market ready narrow-band radio now Kraft Futaba Sanwa Circus Hob bies name few other folks either say walting things settle out told things confidence about what youd expect think will have pretty good selection narrow-band radios choose around Christmas concerned about consequences new situation John Maloney president World Engines has offered following state ment recent edition newsletter Scratchpad going make commit ment right now just single frequency conversion wanted will convert equipment right now new frequencies retail price crystals plus reasonable charge handling postage What else happened WRAM Show Two things important First District II meetingheld WRAM Show John Byrne presiding gentleman see Ed Whittens Jr Flight AMA News section suggested AMA club should adopt school vicinity Ithink its capital idea idea club pay membership AMA faculty member arts/crafts teacher coach audio/visual leader person will pick up ball run buy member ship get ModelAviation Chartered 92 Model Aviation Club mailings Having done follow up planned activi ties think lot can done electric race cars introduce kids radio systems batteries servos battery testers field-strength meters like potential injury small can done indoors during months cant fly Depending age students could make use AMA Delta Dart Program start some builders progress Peanut Scale Indoor Outdoor Hand-Launched Gliders high-starts Two-Meter Sailplanes etc important point people get involved model aviation pleasant way never know support will come fighting off noise complaint Get involved something constructive now banquet during show during awards ceremony closed show Bob Aberle received two awards first Howard McEntee Memorial ward conferred annually WRAMS individual has contributed significantly art science radio-controlled model aviation preceding year have privileged watch close range just hard Bob Aberle has worked unpaid job AMA Frequency Committee Chairman can tell absolute certainty have worked hard jobs youve paid Bob asked take job counselled him time No will well will take job through frustrations getting members committee become active physical way adding already cerebral work watched Bob plead wheedle cajole people doing what should have doing along Ive watched him come work 1 s early months could have time type out stack mail must least six feet high now Ive privy Frequency Committee matters soon anyone committee rye tried give activities exposure felt getting elsewhere As result close personal knowledge what friend has gone through part say fear contradiction 10 awards wouldnt enough cant buy service get free volunteer Bob looks older remember him now know should thank WRAMs recognizing Bobs efforts Bob also received AMA Distinguished ServiceA ward conferred necessary recognize excep tional service AMA Bob deserves Remember congratulate him receiving meet him less denigrate award job isnt over dont have new frequencies yet Bob has drag through end game have idea tired whole thing right now youve building hes writing letters youve flying hes phone talking people over US youve hangar flying local hobby shop Bob has driving himself others think think think Bob doesnt accept opinions easily thought turned over around examined its rami fications dont always agree result process plan best majority Some minorities will slighted onus own up fact what get nothing lot better deserve contributions made havent r DU-BRO SNAP-ON BALL LINKS C ___________2-56 THREADED COUPLER INCL fl N BOLT-ON LINK 3-piece ball link set No 180 must helicopters readily adaptable linkage hook-ups RIC planes boats cars Ball joint action eliminates binding neat clean appearance Only 85C THREADED FOR 4-40 ROD OR BOLT 0 TOUGH NYLON LINK SNAPS-ON AND HOLDS TIGHT izL2 THREADED LINK 5-Piece ball link set No 181 excellent off-set steering throttle servo hookups Includes steel ball assembly 2-56 thread washer nut threaded coupler nylon ball link Easily adjustable Only 85 AIRCRAFT QUALITY HIGH STRENGTH STEEL TRIM ADJUSTMENT 1X Jmnlluuj1j RIVET LINK 4-Piece ball link set No 182 prefer permanent installation Includes nylon link threaded coupler steel ball pin washer peening Absolutely no linkage play ball links used Nylon link helps reduce vibration looks good tool Only 85 L BALL LINK TOOL Serves two uses curved safely separates ball link nut links fits 1/16 threaded ball No187 BALL LINK ISOCKETSFT Extra nylon 1Li/ sockets Fits styles Du-bro ball links LNo188 . 4 $100 STRIP AILERON BALL LINK LINKAGE HOOK- UP Fully adjustable 1 6 pc aileron hook-up complete shown No play no binding super~s precision Eliminates differential throw ~~idJustabIe Safe Should used plane utilizing strip ailerons$295 No 186 DU-BRO PRODUCTS INCORPORATED Bonner Road Wauconda Illinois 60084 USA June 198293 NO SUPER PRECISION MAKE THROTTLE HOOK-UPS / EASY 4 TAKES CARE OF ANY MISALIGNMENT THE BEST IN GIANT SCALE Make Right Choice First Time Kioritz Jr 13 Cu $15995 Kioritz 24 Mfg Suggested List Spring Special $19500 Dealer Direct Zrnger Props 15 lo 24 dorneler prlches Exhaust Manifold Kjtfrs Krorrtz Kawasak trothers Velocity Stack Kit Kiortz Quadra Six-Bolt Prop Hub Quadra Kioritz 1-Pc Cast Mount 24 aed 131 Kioritz Digital Tach Spark mpulse trrggered Bennet Muffler B&B SpecaItres Champion Plugs RCJ-8 resistor Belray MC-1 Synthetic Oil 1207 501 mIs Weve Moved Roush Mfg Rear 3405 Cleve Ave SW Canton OH 44707 216-484-6810 30% off $1000 300 1995 1595 5995 1795 250 295 R M Titan 43 Cu 6 HP $28995 Limited Availability Special Order Only ~mIEJRear 3405 Cleve Ave SW. Canton OH 44707 Send bUt tar Cataloq U nuari MPG Phone 216 484-6810 484-4374 made myself clearkeep complaints yourself Bob doesnt need weight back point needs hand shoulder say Thanks ajob well done Send months letters Bob Aberle address below just say Thanks what youve done congratulations receiving Howard McEntee Memorial Award AMA Distinguished Service Award deserve cant fill up letter postcard will Ill sneak some morning leave pile desk George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Fun/Winter Continued page 22 Speaking fun about 18 months ago ye en gineer-type Associate Editor Ross McMullen heckled us write up Sky-Lark EH-1 Japanese RC Helicopter electric powered connected umbilical cord battery source ground Dont laugh has advant agesthe manufacturer ran full pages Japan ese magazine thick ad pages appear front contents pagesome 500 pages totalthan pages Ameri can magazine Blood-hound Ross chased down details note pleasure reply addressed Mr McMutten Lets just quote Sky-Lark EH- 1 worlds first Electric Helicopter has well accepted modelers because stability potential performance can easily practice flying yard garage disturbing neighbors using power cord optional point advice Sky-Lark drains max 20-30 amps during flight Use 12V 35-40 Ah capaity find Corolla class cars power cord flight quick charg ing flight pack 1 2V batteries engine starter means typical electrical starter cannot used purposes charge Ni-Cd pack first discharge cells until rotor comes complete stop Some red ink scribbles reveal Ross calculated flight duration 12 amp hours 25 amps per flight comes out 29 minuteslets say three Fun would lathered much less time power cord special silicone seven meters long meters its time learn metric system like want Length 846mm rotor diameter992mm 96 1200 mAh flight pack four channels Mabuchi RSS4OA x 2 gross 155kg empty 12kg Price semi-kit time 38000 yennot bucks Heavens sake Marketed K K Ishimasa #2-1 Honmachi Shikuya-Ku Tokyo Japan 151 Off sunset Ron Moulton MAP England Glad piece about Dr F B Thomas 1925 round-the-pole flying interest FBT sent 16mm movie must have taken around 1927 shows whole works action outside-the-circle joystick throttle landings takeoffs prangs F B Thomas flying Control Line country 1925 technical Round Pole rather U-Control Thomas flying handle ideas use bellcrank pre-1939 ingenious bit very early models remotely-powered large engine pylon base driving wire torque rod out model via bevel gears using bicycle front wheel fork carry mechanism~ Fun recalls guy named Broderick California 1909 flew big steampowered crate length clothesline flew barn everything went up down smoke Gosh ancients really fun Bill Winter 4426 Altura Ct Fairfa VA 22030 CAP-21 /Berliner- Mitchell Continued page 30 646 wingspan26 ft 6 808 wing area99 sq ft 92 sq empty weight 1045 lb 474 kg 94 Model Aviation Dont Let An Accident Spoil Day Quick Silver Silver Bearing Paste Syringe Dispenser $1197 mci Post & Hand Field Repairs No Waste 0 22000 psi tensile strength melting pointopen flame lighter soldering iron s 14 combinations metals e Wont blacken tarnish Hobby Distributors P 0 Box 914 Rosewell GA 30077

George M Myer KV7 0 95 LAST YEAR reported WRAM West chester Radio Aero Modelers Inc Show year Chip NE5044 told manufacturers process shifting transmitter designs new cheap er design would offer servo travel reversing mixing control conditioning LIN/XPO/Dual Rate other sophistications started Ace RC Silver Seven has spread such labels Airtronics XL Circus Hobbies Kraft Futaba World Engines Im sure youve observed year emphasis receivers worth noting new transmitters designed new RC channels mind Theyre ready use odd-number chan nels 20KHz apart right now Some previous transmitter designs also qualify thats subject another column Ill say now AMA Frequency Committee has examined lot manufacturers type-certifi cation records found better things expected find As write FCC has released NPRM Notice Proposed Rulemaking need continue process toward 80 new channels However surveyed manufacturers represented WRAM Show found have working new receivers suit new narrow-band channels general US manufacturers saying 14 Model Aviation George has used Circus Hobbies JR Apollo receiver reprasent new breed receiver will required let RC flying survive coming new-channel confusion Voull notice new-design receiver has eight canned transformers replaceable crystal Look report Apollo future column Nick Ziroli father son showed new 1/5-scale North American AT-6 Texan Nick Sr holding plans built-up wings tail fuselage cowl exquisitely-done fiber glass Can new class Pylon Racing far behind working Japanese manu facturers saying ready sell soon R&O Report Order takes effect exactly what expected find because Japanese have selling narrow-band equipment European market years no consensus Some manufacturers talk replaceable crystals others speak replaceable modules synthesize appropriate frequencies Both use crystals synthesizer uses common crystal channels replaceable-crystal design needs separate crystal pair trans mitter receiver channel replaceable-crystal approach has two sig nificant drawbacks 1 An inventory crystal pairs 80 different channels exceedingly expensive some say prohibitively expensive 2 The crystal manufacturers dont want set up production lines get small number crystals hobby will need second quibble reflects thing wrong world today. trend toward supra-National Super-Corporations size prohibits taking small jobs progress stifled favor continuous produc tion obsolete common designs Have noticed perhaps hard tell auto mobile another regardless country origin J.ets get back receivers fundamental issue new receiver bandwidth Existing receiver designs cant tuned well enough survive narrow-band environment other hand achieve narrow-band performance have worry about stability narrow-band system has proportionally less room accept transmitter frequency drifting way receiver tuning drifts other solution problem voltage regulation Im sure have observed NE5044 NE5 045 receiver chips feature voltage regulation ever voltage regulation isnt need Drift also caused temperature changes narrow-band system also requires tempera ture compensation general means higher-quality expensive components must used may also necessary put crystals other frequency-determining com ponents inside little insulated heated enclo sures Everyone shudders suggest continued page 16 June 198215 Rich Urevichs new 15-powered AT-6 Texan designed specifically Pylon Racing con struction article model appeared May1982 edition ModelAirplane News George reports several area modelers already have birds flying preparation inaugural series Pylon Races design will held July 1982 Further details race schedule rules obtainable Rich MAN offices Charlie Cannon petite tail appreciate fact Pattern plane holding belongs hubby Bill powered G-Mark 03 engine Yep thats little halfthesizeofanormalAplane Naturally uses 4-ch Cannon Micro radio Kraft showing neir new lTorelgn-ouiIti -4 servo eorge nas tested ne pro nounces good amplifier doesnt care what frame-rate yourtransmitter uses wide variety output devices provided fit its splined output shafta departure Krafts usual snuare outnut shaft AMA District II meeting John Byrne District II Vice-President listens attentively member asks question about - s what osed new RC frequencies Its incredible heres true Epoxy Point thats Pre-mixed. can! 0O 9 q ERITES BLACK PAQRON IPAO p8Iflt No pot life ixing proof Lightweight r tough a Flexible C0VERITE 420 BABYLON ROAD/HORSHAM PA 19044 & 11011 %11IA\Y D[CKMAHFR First TimePOST OFFICE BOX 308THOMASJ MAHER tit trIjs(ITAPJAS CITY MICHIGAN 48763 PHONE 517 362-6078 011 PSITE OWIIIL4 TI CALE CH 03ATYPE B9VAL 70 5 Span60 90 Po 5228 00 WE THINK YOU WILL AGREE THAT THEY ARE THE nEST NAWLLTD0 KITS YET FUSALAGE WINGS TAIL SURFACES WHITE EPOXY FINISH READY FOR PAINT & OFTAILING EURATHANE FOAM RIGIDLY SUPPORTS EPOXY GELL COAT FIBERGLASS REINFORCED AT STRESS POINTS ONLY ASSFMBLY INSTALLATION OF EOUIPMENT & PAINTING REGUIRED SCALE WHEELS INCLUDED NO NEED TO COVER WITH BALSA SHEET OR FILM SUPERIOR PRODUCT NO Whole Loe LeO CLUBS CHECK OUT OUR SPECIAL INTRODUCTORY OFFER SNJ HARVARD U63 3/8 Span 0 Power Si 8800 Simple fact such enclosures have part high-precision radio systems since beginning radio Right now little ovens looked upon last resorl due considerations cost weight complexity Most folks look small plastic boxes called replaceable modules economic solution suspect theyre right Synthesizers vs replaceable crystals Replace able crystals vs modules AM vs FM issues separate various manufac turers approaches Glen Toma Futaba told FM modules G series ready waiting Futaba will phase out AM soon possible Circus Hobbies look ing replaceable crystals switch FM modules Fred Marks Ace RC member AMA Frequency Committee has strong personal opposition idea replaceable crystals prefers AM Butch Lanterman World Engines has quoted working synthesized transmitter Bruce Batch doing business Full Command Sys tems 908 E Rosewood Spokane WA 99207 has advertised See synthesized Radio Toledo spoke Mr Schwing EMS Mr Figelski Litco both favored synthesizers because small manufacturers cost crystals viewed prohibitively expensive men people have listen because will make happen whatever turns out MRC will go modules Kraft isnt saying theyve both AM FM modules years Kraft ready either way broached synthesizer/replaceable crystal issue report local club reactions ranged boredom violent opposition least club member spent lot club time campaigning against idea frequencychanging switch transmitter think whole argument goes away manufacturer puts frequency-changing switch module module has removed let get switch No matter what done realize frequency control will become bigger problem Perhaps AMA Frequency Committee should prepare recom mended approach problem have Continued page 92 16 Model Aviation Bob Aberle CR AMA Frequency Committee chairman receives AMA Distinguished Service Award AMA District II VicePresident John Byrne Bob wears newlyawarded Howard McEntee Memorial Award presented WRAMS Bob Hunt photo Photo s snown necossari p nose completed Kits P47 Military Scale $180 INCLUDES Top Flight P-47 kit Rhom retracts Aerosport 6 channel radio 5 servos Fox Eagle 60 engine J-3 CUB Quarter Scale $227 INCLUDESBud Nosen 1/4 scale J-3 Cub kit Kraft 4 channel radio rvos Quadra engine mount & props S212 Super Hustler engine SUPER KAOS Fast & Fun $185 INCLUDES Bridi Super Kaos kit Proline 5 channel radio 4 servos OX Max 60 engine $205 Rhom retracts items shown plus HUNDREDS others individually offered sale recent issues Hobby Swap News model en thusiasts Used Equipment Guide BuySell-Trade first ad tree 50 words max subscription $10/yr 10 issues $19/2yr. $27/3yr Add $3/yr 1st class mail Canada & Mexico must use 1st class rates other countries write first MC & Visa Accepted include numbers expiration date Expect 4 8 weeks delivery 1st issue address changes Submit free ad B&W photo $2 extra subscription orders Hobby Swap News Dept AR-3 PO Box 834 Santa Marta CA 93456 LOWERING THE COST OF HAVING FUN Safety Preston Continued page 12 batteries backwards zapping charger friend did case hooking up batteries charger caused red charg ing indicator light glow before power cord charger inserted wall outlet should have alerted him something amiss since light tell batteries indeed being charged think glows after unit plugged AC source Failure indi cator glow could mean plugged switched outlet didnt turn wall switch could mean blown fuse also might have left transmitter receiver switch thereby connecting batteries Tx Rx circuitry instead charger friend thinks son charger recently loaned may have reversed polarity output plug match different brand radio Whatever reason result defunct charger story somewhat different occurred least eight years ago purchased some wet cell Ni-Cds club auction use starting batteries automotive battery charger cumbersome equipped Variac pressed service charge up batteries Some time later another club auc tion purchased small plug-in-the-wall charger tl Brand X variety paper sticker marked 1 2V wanted charge 12-volt gel-cell field box worked perfectly some time came night error thinking tried charge two wet-cell starting Ni-Cds connected series using small 2V charger charger kind equipped indicator light covered amber lens lets know allis well its use guess light also serves fuse since isnt other fuse circuitry connected two starting Ni-Cds did appear indicator light somewhat brighter normal late night brain didnt register anything amiss some reason dont remember what occasion return workshop before turning night immediately apparent problem some kind since strong odor burning insulation glance charger took diagnose source since brown sticky substance exuding its bottom indicator light bulb didnt blow dont know Presumably though current too much forthe chargers transformer handle still below rating bulb chargers metal case too hot pull out wall socket protection rag hand often break out goose bumps think what might have happened handt made return trip workshop prior hitting sack Its possible might have ended up different author pages moral stories unless know what youre doing dont mess around electrical equipment now have decent VOM think must serious modeler Micronta Radio Shack brand Cat No 22-207A isnt cheap est model Radio Shack sale catalog arrived just yesterday has Micronta VOM No 22-204 plenty good enough other serious electroncis hobbyist its sale price $2488 have number cheaper models too periodically will go sale closing months column wed like thank responded request infor mation allergic reactions epoxy glues appeared March 1982 issue will talk about after have-run down some leads provided readers Mean have experienced allergic reac tion epoxy buy small fan work shop keep glue off hands Have safe month John Preston 7012 Elvira Ct Falls Church VA 22042 WRAM Show/Myers Continued page 16 prepared recommended Phase-In Plan protect use old sets long possible Frequency-Flag Plan get away foreign streamers weak pastels cant tell orange brown red and/or dirty yellow Logic dictates eventually transmitters receivers will have synthesizers fre quency-changing switches few bucks transmitter could have monitor receiver built before switching transmitter could switch monitor make sure no nearby using frequency wouldnt protect inter ference coming somewhere off field would keep shooting buddy down being shot down yourself transmitter left impound area could worked transmitter switch would have go through Monitor position get the Transmit position Being Transmit would disable monitor wouldnt driven nutty noise Something manufacturers think about havent already went WRAM Show ask question What willing say publication about companys response impending change RC channels As reporter think its job ask questions would ask bore until believe answer Thats what did answer Anyone selling European market ready narrow-band radio now Kraft Futaba Sanwa Circus Hob bies name few other folks either say walting things settle out told things confidence about what youd expect think will have pretty good selection narrow-band radios choose around Christmas concerned about consequences new situation John Maloney president World Engines has offered following state ment recent edition newsletter Scratchpad going make commit ment right now just single frequency conversion wanted will convert equipment right now new frequencies retail price crystals plus reasonable charge handling postage What else happened WRAM Show Two things important First District II meetingheld WRAM Show John Byrne presiding gentleman see Ed Whittens Jr Flight AMA News section suggested AMA club should adopt school vicinity Ithink its capital idea idea club pay membership AMA faculty member arts/crafts teacher coach audio/visual leader person will pick up ball run buy member ship get ModelAviation Chartered 92 Model Aviation Club mailings Having done follow up planned activi ties think lot can done electric race cars introduce kids radio systems batteries servos battery testers field-strength meters like potential injury small can done indoors during months cant fly Depending age students could make use AMA Delta Dart Program start some builders progress Peanut Scale Indoor Outdoor Hand-Launched Gliders high-starts Two-Meter Sailplanes etc important point people get involved model aviation pleasant way never know support will come fighting off noise complaint Get involved something constructive now banquet during show during awards ceremony closed show Bob Aberle received two awards first Howard McEntee Memorial ward conferred annually WRAMS individual has contributed significantly art science radio-controlled model aviation preceding year have privileged watch close range just hard Bob Aberle has worked unpaid job AMA Frequency Committee Chairman can tell absolute certainty have worked hard jobs youve paid Bob asked take job counselled him time No will well will take job through frustrations getting members committee become active physical way adding already cerebral work watched Bob plead wheedle cajole people doing what should have doing along Ive watched him come work 1 s early months could have time type out stack mail must least six feet high now Ive privy Frequency Committee matters soon anyone committee rye tried give activities exposure felt getting elsewhere As result close personal knowledge what friend has gone through part say fear contradiction 10 awards wouldnt enough cant buy service get free volunteer Bob looks older remember him now know should thank WRAMs recognizing Bobs efforts Bob also received AMA Distinguished ServiceA ward conferred necessary recognize excep tional service AMA Bob deserves Remember congratulate him receiving meet him less denigrate award job isnt over dont have new frequencies yet Bob has drag through end game have idea tired whole thing right now youve building hes writing letters youve flying hes phone talking people over US youve hangar flying local hobby shop Bob has driving himself others think think think Bob doesnt accept opinions easily thought turned over around examined its rami fications dont always agree result process plan best majority Some minorities will slighted onus own up fact what get nothing lot better deserve contributions made havent r DU-BRO SNAP-ON BALL LINKS C ___________2-56 THREADED COUPLER INCL fl N BOLT-ON LINK 3-piece ball link set No 180 must helicopters readily adaptable linkage hook-ups RIC planes boats cars Ball joint action eliminates binding neat clean appearance Only 85C THREADED FOR 4-40 ROD OR BOLT 0 TOUGH NYLON LINK SNAPS-ON AND HOLDS TIGHT izL2 THREADED LINK 5-Piece ball link set No 181 excellent off-set steering throttle servo hookups Includes steel ball assembly 2-56 thread washer nut threaded coupler nylon ball link Easily adjustable Only 85 AIRCRAFT QUALITY HIGH STRENGTH STEEL TRIM ADJUSTMENT 1X Jmnlluuj1j RIVET LINK 4-Piece ball link set No 182 prefer permanent installation Includes nylon link threaded coupler steel ball pin washer peening Absolutely no linkage play ball links used Nylon link helps reduce vibration looks good tool Only 85 L BALL LINK TOOL Serves two uses curved safely separates ball link nut links fits 1/16 threaded ball No187 BALL LINK ISOCKETSFT Extra nylon 1Li/ sockets Fits styles Du-bro ball links LNo188 . 4 $100 STRIP AILERON BALL LINK LINKAGE HOOK- UP Fully adjustable 1 6 pc aileron hook-up complete shown No play no binding super~s precision Eliminates differential throw ~~idJustabIe Safe Should used plane utilizing strip ailerons$295 No 186 DU-BRO PRODUCTS INCORPORATED Bonner Road Wauconda Illinois 60084 USA June 198293 NO SUPER PRECISION MAKE THROTTLE HOOK-UPS / EASY 4 TAKES CARE OF ANY MISALIGNMENT THE BEST IN GIANT SCALE Make Right Choice First Time Kioritz Jr 13 Cu $15995 Kioritz 24 Mfg Suggested List Spring Special $19500 Dealer Direct Zrnger Props 15 lo 24 dorneler prlches Exhaust Manifold Kjtfrs Krorrtz Kawasak trothers Velocity Stack Kit Kiortz Quadra Six-Bolt Prop Hub Quadra Kioritz 1-Pc Cast Mount 24 aed 131 Kioritz Digital Tach Spark mpulse trrggered Bennet Muffler B&B SpecaItres Champion Plugs RCJ-8 resistor Belray MC-1 Synthetic Oil 1207 501 mIs Weve Moved Roush Mfg Rear 3405 Cleve Ave SW Canton OH 44707 216-484-6810 30% off $1000 300 1995 1595 5995 1795 250 295 R M Titan 43 Cu 6 HP $28995 Limited Availability Special Order Only ~mIEJRear 3405 Cleve Ave SW. Canton OH 44707 Send bUt tar Cataloq U nuari MPG Phone 216 484-6810 484-4374 made myself clearkeep complaints yourself Bob doesnt need weight back point needs hand shoulder say Thanks ajob well done Send months letters Bob Aberle address below just say Thanks what youve done congratulations receiving Howard McEntee Memorial Award AMA Distinguished Service Award deserve cant fill up letter postcard will Ill sneak some morning leave pile desk George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Fun/Winter Continued page 22 Speaking fun about 18 months ago ye en gineer-type Associate Editor Ross McMullen heckled us write up Sky-Lark EH-1 Japanese RC Helicopter electric powered connected umbilical cord battery source ground Dont laugh has advant agesthe manufacturer ran full pages Japan ese magazine thick ad pages appear front contents pagesome 500 pages totalthan pages Ameri can magazine Blood-hound Ross chased down details note pleasure reply addressed Mr McMutten Lets just quote Sky-Lark EH- 1 worlds first Electric Helicopter has well accepted modelers because stability potential performance can easily practice flying yard garage disturbing neighbors using power cord optional point advice Sky-Lark drains max 20-30 amps during flight Use 12V 35-40 Ah capaity find Corolla class cars power cord flight quick charg ing flight pack 1 2V batteries engine starter means typical electrical starter cannot used purposes charge Ni-Cd pack first discharge cells until rotor comes complete stop Some red ink scribbles reveal Ross calculated flight duration 12 amp hours 25 amps per flight comes out 29 minuteslets say three Fun would lathered much less time power cord special silicone seven meters long meters its time learn metric system like want Length 846mm rotor diameter992mm 96 1200 mAh flight pack four channels Mabuchi RSS4OA x 2 gross 155kg empty 12kg Price semi-kit time 38000 yennot bucks Heavens sake Marketed K K Ishimasa #2-1 Honmachi Shikuya-Ku Tokyo Japan 151 Off sunset Ron Moulton MAP England Glad piece about Dr F B Thomas 1925 round-the-pole flying interest FBT sent 16mm movie must have taken around 1927 shows whole works action outside-the-circle joystick throttle landings takeoffs prangs F B Thomas flying Control Line country 1925 technical Round Pole rather U-Control Thomas flying handle ideas use bellcrank pre-1939 ingenious bit very early models remotely-powered large engine pylon base driving wire torque rod out model via bevel gears using bicycle front wheel fork carry mechanism~ Fun recalls guy named Broderick California 1909 flew big steampowered crate length clothesline flew barn everything went up down smoke Gosh ancients really fun Bill Winter 4426 Altura Ct Fairfa VA 22030 CAP-21 /Berliner- Mitchell Continued page 30 646 wingspan26 ft 6 808 wing area99 sq ft 92 sq empty weight 1045 lb 474 kg 94 Model Aviation Dont Let An Accident Spoil Day Quick Silver Silver Bearing Paste Syringe Dispenser $1197 mci Post & Hand Field Repairs No Waste 0 22000 psi tensile strength melting pointopen flame lighter soldering iron s 14 combinations metals e Wont blacken tarnish Hobby Distributors P 0 Box 914 Rosewell GA 30077