ABSTRACT Bob Aberle retirement writing Cystal-base short circuit fix Noise philosophy measurements K&B Sportster 45 LEADER RETIRES Bob Aberlepast chair man AMA Frequency Committee prolific model designer/builder/tester Technical Edi tor Flying Models magazine past 15 yearshas retired writing model maga zines has retired working liv ing manager large aerospace firm Bob best friends can testify put time effort week being PC chairman writing pho tography people put jobs pay way through life Thats what filled file cabinet AMA HQ made writing good enough earn McEntee medal WRAMs known worldwide test reports RC systems equipment less well known management got us 80 exclu sive RC channels insider know about Bob always does own photo processing alone costs time money gener ates new model design year addition communications hobby vendors testing writing answering reader letters much did amount Would believe some 1500 pages published figure 75000 photos about 3000 letters ven dors plus another 1500 reader letters answered say nothing phone calls 20 published designs ranged Scale model Grumman Kitten same size Quickee 500 flew better 020powered Cannonball flies well Racer yet slows down land like Sail plane Designing magazines money-losing ac tivity People personally interested investigating design option feel need share results great de- Bob feels burned out efforts signs never offered magazines easy enough understand never HI-Tec HP-7RM72F receiver World Engines Expert RC system L utilizes thin plastic insulator wafer crystal pins Arrow 1 keep crystals metal case shorting out receiver touches eyelets Arrow 2 forming crystal socket happen lose insulator certain make Install new replacing crystal George tested noise-reduction idea K&B 45 Sport ster R shown mounted test stand sponge rubber model wheel used vibration/sound Isolator between engines radial mount firewall Engines mounting nuts have loosened engine pulled forward bit photo order make isolator visible used plane too its easy should try Test resuits Table 1 near end column 36 Model Aviation George Myers D Radio Thchnique 70 Froeblidi Farm Rd Hicksvilie NY 11801 Bob Aberie subject final review Flying Models magazine Sky Dancer always wants know does act right out box follow instructions given Youll have read FM find out Thats bit like friend George Myers always wants find out make anything fly Georges way learned go slow now wants play some golf take vacations wife maybe soon start playing some grandchil dren think least part burnout can traced fact model supplies tele phone taxes postage prices model magazines have gone up steadily over past 15 years Model Aviation costs per copy went $125 $175 However used get 80 pages now get least 164 pages means price paid per page went DOWN 156 cents par page 107 cents per page price per page other model magazines has gone up same period fees paid writers havent creased dime lucky break writing Bob leaves some big footprints next guy cover Field service bulletin friend Tom Hunt found out hard way plug-in crystal Hi-Tec Polks 720 World Engines Ex pert HP-7RM72F receiver may short out re ceiver fact its metal case making contact eyelets create socket re ceiver Such crystals usually delivered plas tic insulator yours lost cut 5/ x Y16-in strip plastic punch holes needle crystal pins press strip over crystals pins before inserting crystal socket now before forget Any rigid piece plastic will suffice used scrap draft ing mylar Tom Hunt used strip trim Mono Kote Both worked Fairly obvious note use pencil mark centerline punched holes graphite trail left pencil lead would short Out crystal too Noise Noise sound dont want hear Its subjective theres mosquito bed room loudness sound isnt important can prove trying measure loud ness mosquito wont able ordinary sound-level meter Perhaps tells something about depending objective measurements sound-level meter defend flying site really should read about meaning sound level measurements Eying Field Layout Meet Noise Criteria GF Abbott MA November 1987 page 34 et seq best way assess noise complaints jury system get bunch disinterested people together let listen sound ask unacceptable noise majority vote decides Basically people complain about noise make because arent doing same thing should give clue Involve neigh bors RC flying wont complain about noise have plane under construc tion sound engine adds antic ipation pleasure can show off mod el brag friends have let fly plane did great can identify themselves what doing arent interested flying talk giving themselves block party can get know neighbors Help make happen finding out about permits arranging police street closing etc keep thinking idea Introduce yourselves around make selves known real people Give reason like youand dont mention airplanes Make friends Friends make allowances friends want friend must friend Continued page 142 HANDS Espciiify fc Tdpered OFF CUT IL unique divice cutting high qualitj roam wing cores HAIIDS OFF cutting both sides same time Available hardware packaqe &jou assemble uour own boardSpeciftj 3848-5Wor 6O ordeririq size matj chanqed anJtime Max Chord 18 standard er chords available assemble Requires 4 Volt Variable Output Power Supplij DEALERS WANTED Hands Oft Cut II ware package . $8750 S&H 4 Volt Variable output power supplij$6250 5& H FOAM SHOP Foam Shop Part One Cutting Foam Wings. hour long cuts made using HANDS OFF CUT II V1-15 Only $2995 includes 5&H lower 48 Foam Shop Part Two Cutting Foam Fuselages. hour longAll cuts made using simple bow YHS Onlj $2995 includes S&H lower 48 SUPER BONDCONTACT ADUIESIYE best contact cement have ever used Onlu $375 8 oz squeeze bottle Enough 1400 sq inch wing Add $200 S&H lower 48 1/8Board Templates 4 XOnl $500 5&H inch Phenolic 36 ft INOR-RAYPRODUCTS INC 1500sendbench Road Wichita Falls TX 76310 IALANE SPECIAL Kit #32 Great Around Plane Compl Kit $6795 100% Money Back Guarantee 60 wing 41 length 630 eq wing s.715 wing 55 length 930 sq wing area 4540 engine 6090 four stroke 4 Ibs8 oz. 4 channei4540 engine 6090 four stroke Bibs. 4 channel Both kits feeture fomed cowling pre-bent landing gear harawere canopy die-cut & pre-cut parts fuil size plans complete instruction book See local hobby shop dealer first. available order direct Send check MO plane choice Pce indudes shipping & handling coo shipments also available Lime La g~ii L1e &iL 24 hr order iine ect calls accepted 314-928-7777 Skyline Hobbys Mfg 49 Treebeard Circle St Charles MO 63303 October 1988 37 Fully Aerobatic Complete Kt $4995 Made USA Curtiss Jenny * Quality hand-cut kit complete plans rigging scale control setup wire parts pre-bent special hardware included parts individually indentified packaged Decals Major Decal * Engine sizes 20 40 FS 25 TS * Wing unit removes four screws less 3 minutes flying wires left intact * Superb flight characteristics Introductory Price 13900 VISA erCard y Order Michigan residents add 4% sales tax Add $550 P&H US orders $1250 foreign Video Catalog $1250 ipost mci VHS/Beta 1*5 rebate return tape kit order Reg catalog sample mini-plan-$2 Hand-Cut Quality Affordable Price AERODROME MODELS LTD 2623 S Miller Rd 27Y__Saginaw Ml 48603 517 781-3000 Other Kits Available Aero-Pacer Baby -Pacer Gipsy Moth Flybaby Flybaby Combo Hawker Hurricane Jester expensive superfluous time take dog along vacation sniffing pawing among buffalo ruins designing executing first Na tional Convention Fun-Fly AMA took bold step forward should set pattern lasting importance pro totype certainly flew-and adver tised great fin Entrants first AMA National Fun Fly Charles Abrahams Downey CA Cliff Adams Pomona CA Gail K Adams Pomona CA Mark J Anderson Lakeport CA Richard C Anderson Reno NV Eric T Bailman Reno NV Al Beam Ketchum ID Stanley J Bellatti Gasquet CA David Bellenger Granada Hills CA Ron Bodwell Alameda CA James D Bowman Modesto CA Vemon W Brandt ncr Monterey Park CA Robert C Brogan Car son City NV Franklyn Bryant Renton WA Leland H Buhr San Mateo CA Bill E Bur kart Alameda CA David S Burwell San Jose CA Nick M Camso Brookings OR Donald R Chipman Arnold CA Peter H Chow Sunny vale CA Thomas J Crowley Monrovia CA Art Cummins Nevada City CA Cecil Den nis Boise ID Hurley M Dodd Vista CA Lester V Douglass Placerville CA John L Evans Reno NV Ken P Evana Green River WY Michael Fasolo Gold River CA David Frint Green River WY John 0 Gaines San Jose CA Dave Gardner Renton WA Melvin J Geiger Eureka CA Ron L Gilman Rosamond CA Blanche Godel N Hollywood CA Carlo Godel N Hol lywood CA Frank L Godel N Hollywood CA John C Godel N Hollywood CA Dennis K Grady San Andreas CA Patrick N Grubbs Rancho Murieta CA Gaiy Hair San Jose CA Robert Hair Pahrump NV Phillip J Haley Carson City NV John Harrab Reno NV Andy H Herskind Rohnert Park CA John M Hood San Diego CA Lawrence R Horacek Sparks NV Gerald Howell Alpine CA Kai Jensen Reno NV David Johnson Hemet CA Sophon Kanoknata Reno NV Ed Kaufman Santa Rosa CA Kathy Kautz Reno NV Marshall D Keegan Burbank CA Brandt T Kennedy Sun Valley NV Eric G Knox Walnut Creek CA Stephen Korney Norwalk CA Lawrence Krutz Reno NV Silas S Kwok Fremont CA 0 Lambiotte San Jacinto CA Jeff D Lastofica Canoga Park CA Brandon Lee Reno NV Donald L Lee Reno NV Mablon R MacPhee Canmchael CA Jeffrey Martin Sun Valley NV Leo J Martin La guna Hills CA George E Mason Arnold CA Billy 0 McDow Portland OR Howard W McFarland Crescent City CA Shannon N McGuffey Reno NV Cecil Mead Buena Park CA Kenneth G Meade Alhambra CA Larry Metz Hemet CA George Miller Rohnert Park CA Lee H Miller Sterllng CO Reed D Moore Elverta CA Sean M Moore Elverta CA Donald S Morse Carson City NV Mi chael J Myers Glendale CA Kirk S Nelson Sacramento CA Ron Nelson Reno NV Bill G OBelmito Monterey Pk CA Robert D Oilman Campbell CA Bruce D Patterson Great Falls MT Jeremy Patter son Great Falls MT Cecil H Reynolds Sunny vale CA James H Riccio Glendora CA Wen zel Roller New England ND Dennis Ross Reno NV Earl H Rummel Travis AFB CA John T Russo Arcadia CA Samuel C Russo Arcadia CA Monte C Salot Glendora CA George J San tikian Fresno CA Wilbur L Schneider San Jose CA Alan D Sharky Alhambra CA Yo shio Shida Los Angeles CA Earl N Stack house Reno NV David C Tacal Coos Bay OR John F Tavares Colorado Spgs CO Ni cholas M Tenaza Concord CA Col Bob Thacker San Clemente CA Joel E Thomas Ex ford AL Ross S Thompson Vancouver WA Jim Trimlett Portola CA Jeff Troy Reston VA Joseph M Tschirgi Santa Ana CA David Turner Spanaway WA Dale C Utterback Studio City CA William H Vanderbeek Cupertino CA Robert E Wa gener Newball CA Derek S Walldngton Lan caster CA John W Walkington Lancaster CA George E Wasson Sparks NV James Weller Yelm WA William F Weller Yeim WA Keith R Wesson Lancaster CA James V White Covina CA Melvin G White Sparks NV Thomas D White Sparks NV Charles L Willcox Renton WA Jahn M Wisniewski Scottsdale AZ Harry G Wood Long Beach CA John Worth Fairfax VA Myron E Zorger Sacramento CA Radio Technique/Myers Continued page 37 Maybe old couple living house borders field would really appreciate some did some yard work has got ahead Recognize continuous sound annoy ing quiet hum air conditioner keeping cool annoyance period blessed relief hum stops through power failure whatever did enforce five-minute No engine noise pe rind hour field effect act would give neighbors some relief limit size fuel tanks might help might give serious thought flying noiseless airplanes during mealtimes Basically problem noise control keeping neighbors quiet thing got going noise kick Bob Underwoods K&B Sportster 20-power ed Thingamabob amazed its quiet per formance 1986 Nationals came Don Lowes report noise reduction efforts Gold Coast Fliers Detray Beach FL MA July 1988 page 88 et seq visited ad dressed club February 1988 guest friend Norman Rosenstock right after incident inspired Dons re port concurrent attempt town near home eliminate RC flying via zoning ordinances based noise broke Out sound-level meter started making some measurements first measure ment point reference measured OS 15 fitted stock OS muffler 8 x 5 prop running 15%-nstro fuel installed Sig Kadet plane very easy ears measures 87 dB full throttle soundlevel meter nine feet out foot up plane grounda packed sand base ball diamond Birds make noise air model does flight oniy time $2995 Radio Shack #332050 Sound Level Meter calibrated time manufacture Calibration soundlevel meters simple could sub ject another column point Im malt ing now data uncalibrated instru ment can considered comparison 142 Model Aviation FIBERGLASS PARTS Over 237 cowls kit scratch built models Also over 34 round cowls ranging 4 14-718 diameter 55 diff size & shape wheel pants custom Make Parts Vacuum Form Canopies Pleme amid $1 complete hr T&D FIBERGLASS SPECIALTIES 30925 Block Dept 4 Garden City Ml 48135 PHONE 313 421-6358 BRAZED HEAT-TREATED Will GEAfl & CASANES PHONE 313 261-9064 thats Im offering Next bought K&B Model 5900 Sportster 45 its matching muffler put engine its firewall mount made some measurements various fuels props intake silencers aftermufflers breaking K&B muffler excellent experimented rubber mount made 3-in-diameter spongerubber wheel Summasy results Table 1 Don Lowe right biggest improvements come reducing rpm isolating engine airframe Finally put engine Lanier Javelin has blow-molded plastic-and-plywood fuse lage flew made some measure ments Overall can say K&B Sportster 45 handled nicely quietly reliably K&B fashion rubber mount made plane quieter case solid wood mount agrees Don Lowes find ings really should put effort isolat ing engine mounts Solder/Schoenberg-Shutes Continued page 40 previous freehand soldering jobs modelers may want try out such tool kit materials instruc dons available $650 postpaid RC Wiring Tool 858 NE Quimby Aye Bend Oregon 97701 RC Scale/Tschirgi Continued page 43 lightweight bracketiy include tension member between engine crankshaft bearing housing big main gear shaft can see photo Its also impossible make mounting faces brackets coplanar using simple tools Without resort some trickery whole assembly will warped tighten mounting screws trick coat bracket faces paraffin area contact firewall thick mixture epoxy microballoons firewall horizontal keep epoxy/microhaboon mixture run ning lightly bolt propulsion systems brack ets firewall paraffin keeps epoxy adhering bracket faces Dufaux flew quite well defi nitely overpowered would ROG grass strip flight phato model taken during its last flightabout two sec onds destruction flying photog rapher doing tight turn right al titude about 15 ft model snap rolled over top ie left Look closely will see models aileron rud der positions hard-over right Mark up pilot error moral Any Scale model wing washout likely grow old gracefully Another two photos 1917-vintage Bran denburg W-18 seaplane fighter designed Ernst Heinkel gained greater fame WW II Again model /6-scale has wingspan 70 An inverted old-style Supertigre ST60 pushed its 7 lb along almost sprightly style lots washout lower wings allowed mild acrobatics model worth discussing since did well Scale meets number years events flown off landed grass paved runways Two factors primary contributors success First example outstanding craftsmanship real craftsmanship doesnt count too much judge 15 ft model What judge could see interesting out-of-the-rut configuration gaudy colors markings Scale judges will score model unusual aircraft little higher Perhaps originality factor because some like myself regret old own-design bonus dropped static scoring AMA some years ago Addition ally judges presented models same aircraft type has plain-Jane finish gaudy ones will get significantly higher pointseven difference easily ap Continued page 146 October 1988 143 Table 1 Firewall-mounted K&B Sportster 45 its muffler A-scale slow Radio Shack sound-level meter located 9 ft out 1 ft up source over packed sand HardIsolated PropRPM MountMount 9x6 TF13500 97dB92dB Spr M 10x6 12000 94dB88dB 1991 Guidelines certification first equipment has certified meet narrow-band requirements AMA 1991 Guidelines listed AM4 News section month
Edition: Model Aviation - 1988/10
Page Numbers: 36, 37, 142, 143
Edition: Model Aviation - 1988/10
Page Numbers: 36, 37, 142, 143
ABSTRACT Bob Aberle retirement writing Cystal-base short circuit fix Noise philosophy measurements K&B Sportster 45 LEADER RETIRES Bob Aberlepast chair man AMA Frequency Committee prolific model designer/builder/tester Technical Edi tor Flying Models magazine past 15 yearshas retired writing model maga zines has retired working liv ing manager large aerospace firm Bob best friends can testify put time effort week being PC chairman writing pho tography people put jobs pay way through life Thats what filled file cabinet AMA HQ made writing good enough earn McEntee medal WRAMs known worldwide test reports RC systems equipment less well known management got us 80 exclu sive RC channels insider know about Bob always does own photo processing alone costs time money gener ates new model design year addition communications hobby vendors testing writing answering reader letters much did amount Would believe some 1500 pages published figure 75000 photos about 3000 letters ven dors plus another 1500 reader letters answered say nothing phone calls 20 published designs ranged Scale model Grumman Kitten same size Quickee 500 flew better 020powered Cannonball flies well Racer yet slows down land like Sail plane Designing magazines money-losing ac tivity People personally interested investigating design option feel need share results great de- Bob feels burned out efforts signs never offered magazines easy enough understand never HI-Tec HP-7RM72F receiver World Engines Expert RC system L utilizes thin plastic insulator wafer crystal pins Arrow 1 keep crystals metal case shorting out receiver touches eyelets Arrow 2 forming crystal socket happen lose insulator certain make Install new replacing crystal George tested noise-reduction idea K&B 45 Sport ster R shown mounted test stand sponge rubber model wheel used vibration/sound Isolator between engines radial mount firewall Engines mounting nuts have loosened engine pulled forward bit photo order make isolator visible used plane too its easy should try Test resuits Table 1 near end column 36 Model Aviation George Myers D Radio Thchnique 70 Froeblidi Farm Rd Hicksvilie NY 11801 Bob Aberie subject final review Flying Models magazine Sky Dancer always wants know does act right out box follow instructions given Youll have read FM find out Thats bit like friend George Myers always wants find out make anything fly Georges way learned go slow now wants play some golf take vacations wife maybe soon start playing some grandchil dren think least part burnout can traced fact model supplies tele phone taxes postage prices model magazines have gone up steadily over past 15 years Model Aviation costs per copy went $125 $175 However used get 80 pages now get least 164 pages means price paid per page went DOWN 156 cents par page 107 cents per page price per page other model magazines has gone up same period fees paid writers havent creased dime lucky break writing Bob leaves some big footprints next guy cover Field service bulletin friend Tom Hunt found out hard way plug-in crystal Hi-Tec Polks 720 World Engines Ex pert HP-7RM72F receiver may short out re ceiver fact its metal case making contact eyelets create socket re ceiver Such crystals usually delivered plas tic insulator yours lost cut 5/ x Y16-in strip plastic punch holes needle crystal pins press strip over crystals pins before inserting crystal socket now before forget Any rigid piece plastic will suffice used scrap draft ing mylar Tom Hunt used strip trim Mono Kote Both worked Fairly obvious note use pencil mark centerline punched holes graphite trail left pencil lead would short Out crystal too Noise Noise sound dont want hear Its subjective theres mosquito bed room loudness sound isnt important can prove trying measure loud ness mosquito wont able ordinary sound-level meter Perhaps tells something about depending objective measurements sound-level meter defend flying site really should read about meaning sound level measurements Eying Field Layout Meet Noise Criteria GF Abbott MA November 1987 page 34 et seq best way assess noise complaints jury system get bunch disinterested people together let listen sound ask unacceptable noise majority vote decides Basically people complain about noise make because arent doing same thing should give clue Involve neigh bors RC flying wont complain about noise have plane under construc tion sound engine adds antic ipation pleasure can show off mod el brag friends have let fly plane did great can identify themselves what doing arent interested flying talk giving themselves block party can get know neighbors Help make happen finding out about permits arranging police street closing etc keep thinking idea Introduce yourselves around make selves known real people Give reason like youand dont mention airplanes Make friends Friends make allowances friends want friend must friend Continued page 142 HANDS Espciiify fc Tdpered OFF CUT IL unique divice cutting high qualitj roam wing cores HAIIDS OFF cutting both sides same time Available hardware packaqe &jou assemble uour own boardSpeciftj 3848-5Wor 6O ordeririq size matj chanqed anJtime Max Chord 18 standard er chords available assemble Requires 4 Volt Variable Output Power Supplij DEALERS WANTED Hands Oft Cut II ware package . $8750 S&H 4 Volt Variable output power supplij$6250 5& H FOAM SHOP Foam Shop Part One Cutting Foam Wings. hour long cuts made using HANDS OFF CUT II V1-15 Only $2995 includes 5&H lower 48 Foam Shop Part Two Cutting Foam Fuselages. hour longAll cuts made using simple bow YHS Onlj $2995 includes S&H lower 48 SUPER BONDCONTACT ADUIESIYE best contact cement have ever used Onlu $375 8 oz squeeze bottle Enough 1400 sq inch wing Add $200 S&H lower 48 1/8Board Templates 4 XOnl $500 5&H inch Phenolic 36 ft INOR-RAYPRODUCTS INC 1500sendbench Road Wichita Falls TX 76310 IALANE SPECIAL Kit #32 Great Around Plane Compl Kit $6795 100% Money Back Guarantee 60 wing 41 length 630 eq wing s.715 wing 55 length 930 sq wing area 4540 engine 6090 four stroke 4 Ibs8 oz. 4 channei4540 engine 6090 four stroke Bibs. 4 channel Both kits feeture fomed cowling pre-bent landing gear harawere canopy die-cut & pre-cut parts fuil size plans complete instruction book See local hobby shop dealer first. available order direct Send check MO plane choice Pce indudes shipping & handling coo shipments also available Lime La g~ii L1e &iL 24 hr order iine ect calls accepted 314-928-7777 Skyline Hobbys Mfg 49 Treebeard Circle St Charles MO 63303 October 1988 37 Fully Aerobatic Complete Kt $4995 Made USA Curtiss Jenny * Quality hand-cut kit complete plans rigging scale control setup wire parts pre-bent special hardware included parts individually indentified packaged Decals Major Decal * Engine sizes 20 40 FS 25 TS * Wing unit removes four screws less 3 minutes flying wires left intact * Superb flight characteristics Introductory Price 13900 VISA erCard y Order Michigan residents add 4% sales tax Add $550 P&H US orders $1250 foreign Video Catalog $1250 ipost mci VHS/Beta 1*5 rebate return tape kit order Reg catalog sample mini-plan-$2 Hand-Cut Quality Affordable Price AERODROME MODELS LTD 2623 S Miller Rd 27Y__Saginaw Ml 48603 517 781-3000 Other Kits Available Aero-Pacer Baby -Pacer Gipsy Moth Flybaby Flybaby Combo Hawker Hurricane Jester expensive superfluous time take dog along vacation sniffing pawing among buffalo ruins designing executing first Na tional Convention Fun-Fly AMA took bold step forward should set pattern lasting importance pro totype certainly flew-and adver tised great fin Entrants first AMA National Fun Fly Charles Abrahams Downey CA Cliff Adams Pomona CA Gail K Adams Pomona CA Mark J Anderson Lakeport CA Richard C Anderson Reno NV Eric T Bailman Reno NV Al Beam Ketchum ID Stanley J Bellatti Gasquet CA David Bellenger Granada Hills CA Ron Bodwell Alameda CA James D Bowman Modesto CA Vemon W Brandt ncr Monterey Park CA Robert C Brogan Car son City NV Franklyn Bryant Renton WA Leland H Buhr San Mateo CA Bill E Bur kart Alameda CA David S Burwell San Jose CA Nick M Camso Brookings OR Donald R Chipman Arnold CA Peter H Chow Sunny vale CA Thomas J Crowley Monrovia CA Art Cummins Nevada City CA Cecil Den nis Boise ID Hurley M Dodd Vista CA Lester V Douglass Placerville CA John L Evans Reno NV Ken P Evana Green River WY Michael Fasolo Gold River CA David Frint Green River WY John 0 Gaines San Jose CA Dave Gardner Renton WA Melvin J Geiger Eureka CA Ron L Gilman Rosamond CA Blanche Godel N Hollywood CA Carlo Godel N Hol lywood CA Frank L Godel N Hollywood CA John C Godel N Hollywood CA Dennis K Grady San Andreas CA Patrick N Grubbs Rancho Murieta CA Gaiy Hair San Jose CA Robert Hair Pahrump NV Phillip J Haley Carson City NV John Harrab Reno NV Andy H Herskind Rohnert Park CA John M Hood San Diego CA Lawrence R Horacek Sparks NV Gerald Howell Alpine CA Kai Jensen Reno NV David Johnson Hemet CA Sophon Kanoknata Reno NV Ed Kaufman Santa Rosa CA Kathy Kautz Reno NV Marshall D Keegan Burbank CA Brandt T Kennedy Sun Valley NV Eric G Knox Walnut Creek CA Stephen Korney Norwalk CA Lawrence Krutz Reno NV Silas S Kwok Fremont CA 0 Lambiotte San Jacinto CA Jeff D Lastofica Canoga Park CA Brandon Lee Reno NV Donald L Lee Reno NV Mablon R MacPhee Canmchael CA Jeffrey Martin Sun Valley NV Leo J Martin La guna Hills CA George E Mason Arnold CA Billy 0 McDow Portland OR Howard W McFarland Crescent City CA Shannon N McGuffey Reno NV Cecil Mead Buena Park CA Kenneth G Meade Alhambra CA Larry Metz Hemet CA George Miller Rohnert Park CA Lee H Miller Sterllng CO Reed D Moore Elverta CA Sean M Moore Elverta CA Donald S Morse Carson City NV Mi chael J Myers Glendale CA Kirk S Nelson Sacramento CA Ron Nelson Reno NV Bill G OBelmito Monterey Pk CA Robert D Oilman Campbell CA Bruce D Patterson Great Falls MT Jeremy Patter son Great Falls MT Cecil H Reynolds Sunny vale CA James H Riccio Glendora CA Wen zel Roller New England ND Dennis Ross Reno NV Earl H Rummel Travis AFB CA John T Russo Arcadia CA Samuel C Russo Arcadia CA Monte C Salot Glendora CA George J San tikian Fresno CA Wilbur L Schneider San Jose CA Alan D Sharky Alhambra CA Yo shio Shida Los Angeles CA Earl N Stack house Reno NV David C Tacal Coos Bay OR John F Tavares Colorado Spgs CO Ni cholas M Tenaza Concord CA Col Bob Thacker San Clemente CA Joel E Thomas Ex ford AL Ross S Thompson Vancouver WA Jim Trimlett Portola CA Jeff Troy Reston VA Joseph M Tschirgi Santa Ana CA David Turner Spanaway WA Dale C Utterback Studio City CA William H Vanderbeek Cupertino CA Robert E Wa gener Newball CA Derek S Walldngton Lan caster CA John W Walkington Lancaster CA George E Wasson Sparks NV James Weller Yelm WA William F Weller Yeim WA Keith R Wesson Lancaster CA James V White Covina CA Melvin G White Sparks NV Thomas D White Sparks NV Charles L Willcox Renton WA Jahn M Wisniewski Scottsdale AZ Harry G Wood Long Beach CA John Worth Fairfax VA Myron E Zorger Sacramento CA Radio Technique/Myers Continued page 37 Maybe old couple living house borders field would really appreciate some did some yard work has got ahead Recognize continuous sound annoy ing quiet hum air conditioner keeping cool annoyance period blessed relief hum stops through power failure whatever did enforce five-minute No engine noise pe rind hour field effect act would give neighbors some relief limit size fuel tanks might help might give serious thought flying noiseless airplanes during mealtimes Basically problem noise control keeping neighbors quiet thing got going noise kick Bob Underwoods K&B Sportster 20-power ed Thingamabob amazed its quiet per formance 1986 Nationals came Don Lowes report noise reduction efforts Gold Coast Fliers Detray Beach FL MA July 1988 page 88 et seq visited ad dressed club February 1988 guest friend Norman Rosenstock right after incident inspired Dons re port concurrent attempt town near home eliminate RC flying via zoning ordinances based noise broke Out sound-level meter started making some measurements first measure ment point reference measured OS 15 fitted stock OS muffler 8 x 5 prop running 15%-nstro fuel installed Sig Kadet plane very easy ears measures 87 dB full throttle soundlevel meter nine feet out foot up plane grounda packed sand base ball diamond Birds make noise air model does flight oniy time $2995 Radio Shack #332050 Sound Level Meter calibrated time manufacture Calibration soundlevel meters simple could sub ject another column point Im malt ing now data uncalibrated instru ment can considered comparison 142 Model Aviation FIBERGLASS PARTS Over 237 cowls kit scratch built models Also over 34 round cowls ranging 4 14-718 diameter 55 diff size & shape wheel pants custom Make Parts Vacuum Form Canopies Pleme amid $1 complete hr T&D FIBERGLASS SPECIALTIES 30925 Block Dept 4 Garden City Ml 48135 PHONE 313 421-6358 BRAZED HEAT-TREATED Will GEAfl & CASANES PHONE 313 261-9064 thats Im offering Next bought K&B Model 5900 Sportster 45 its matching muffler put engine its firewall mount made some measurements various fuels props intake silencers aftermufflers breaking K&B muffler excellent experimented rubber mount made 3-in-diameter spongerubber wheel Summasy results Table 1 Don Lowe right biggest improvements come reducing rpm isolating engine airframe Finally put engine Lanier Javelin has blow-molded plastic-and-plywood fuse lage flew made some measure ments Overall can say K&B Sportster 45 handled nicely quietly reliably K&B fashion rubber mount made plane quieter case solid wood mount agrees Don Lowes find ings really should put effort isolat ing engine mounts Solder/Schoenberg-Shutes Continued page 40 previous freehand soldering jobs modelers may want try out such tool kit materials instruc dons available $650 postpaid RC Wiring Tool 858 NE Quimby Aye Bend Oregon 97701 RC Scale/Tschirgi Continued page 43 lightweight bracketiy include tension member between engine crankshaft bearing housing big main gear shaft can see photo Its also impossible make mounting faces brackets coplanar using simple tools Without resort some trickery whole assembly will warped tighten mounting screws trick coat bracket faces paraffin area contact firewall thick mixture epoxy microballoons firewall horizontal keep epoxy/microhaboon mixture run ning lightly bolt propulsion systems brack ets firewall paraffin keeps epoxy adhering bracket faces Dufaux flew quite well defi nitely overpowered would ROG grass strip flight phato model taken during its last flightabout two sec onds destruction flying photog rapher doing tight turn right al titude about 15 ft model snap rolled over top ie left Look closely will see models aileron rud der positions hard-over right Mark up pilot error moral Any Scale model wing washout likely grow old gracefully Another two photos 1917-vintage Bran denburg W-18 seaplane fighter designed Ernst Heinkel gained greater fame WW II Again model /6-scale has wingspan 70 An inverted old-style Supertigre ST60 pushed its 7 lb along almost sprightly style lots washout lower wings allowed mild acrobatics model worth discussing since did well Scale meets number years events flown off landed grass paved runways Two factors primary contributors success First example outstanding craftsmanship real craftsmanship doesnt count too much judge 15 ft model What judge could see interesting out-of-the-rut configuration gaudy colors markings Scale judges will score model unusual aircraft little higher Perhaps originality factor because some like myself regret old own-design bonus dropped static scoring AMA some years ago Addition ally judges presented models same aircraft type has plain-Jane finish gaudy ones will get significantly higher pointseven difference easily ap Continued page 146 October 1988 143 Table 1 Firewall-mounted K&B Sportster 45 its muffler A-scale slow Radio Shack sound-level meter located 9 ft out 1 ft up source over packed sand HardIsolated PropRPM MountMount 9x6 TF13500 97dB92dB Spr M 10x6 12000 94dB88dB 1991 Guidelines certification first equipment has certified meet narrow-band requirements AMA 1991 Guidelines listed AM4 News section month
Edition: Model Aviation - 1988/10
Page Numbers: 36, 37, 142, 143
ABSTRACT Bob Aberle retirement writing Cystal-base short circuit fix Noise philosophy measurements K&B Sportster 45 LEADER RETIRES Bob Aberlepast chair man AMA Frequency Committee prolific model designer/builder/tester Technical Edi tor Flying Models magazine past 15 yearshas retired writing model maga zines has retired working liv ing manager large aerospace firm Bob best friends can testify put time effort week being PC chairman writing pho tography people put jobs pay way through life Thats what filled file cabinet AMA HQ made writing good enough earn McEntee medal WRAMs known worldwide test reports RC systems equipment less well known management got us 80 exclu sive RC channels insider know about Bob always does own photo processing alone costs time money gener ates new model design year addition communications hobby vendors testing writing answering reader letters much did amount Would believe some 1500 pages published figure 75000 photos about 3000 letters ven dors plus another 1500 reader letters answered say nothing phone calls 20 published designs ranged Scale model Grumman Kitten same size Quickee 500 flew better 020powered Cannonball flies well Racer yet slows down land like Sail plane Designing magazines money-losing ac tivity People personally interested investigating design option feel need share results great de- Bob feels burned out efforts signs never offered magazines easy enough understand never HI-Tec HP-7RM72F receiver World Engines Expert RC system L utilizes thin plastic insulator wafer crystal pins Arrow 1 keep crystals metal case shorting out receiver touches eyelets Arrow 2 forming crystal socket happen lose insulator certain make Install new replacing crystal George tested noise-reduction idea K&B 45 Sport ster R shown mounted test stand sponge rubber model wheel used vibration/sound Isolator between engines radial mount firewall Engines mounting nuts have loosened engine pulled forward bit photo order make isolator visible used plane too its easy should try Test resuits Table 1 near end column 36 Model Aviation George Myers D Radio Thchnique 70 Froeblidi Farm Rd Hicksvilie NY 11801 Bob Aberie subject final review Flying Models magazine Sky Dancer always wants know does act right out box follow instructions given Youll have read FM find out Thats bit like friend George Myers always wants find out make anything fly Georges way learned go slow now wants play some golf take vacations wife maybe soon start playing some grandchil dren think least part burnout can traced fact model supplies tele phone taxes postage prices model magazines have gone up steadily over past 15 years Model Aviation costs per copy went $125 $175 However used get 80 pages now get least 164 pages means price paid per page went DOWN 156 cents par page 107 cents per page price per page other model magazines has gone up same period fees paid writers havent creased dime lucky break writing Bob leaves some big footprints next guy cover Field service bulletin friend Tom Hunt found out hard way plug-in crystal Hi-Tec Polks 720 World Engines Ex pert HP-7RM72F receiver may short out re ceiver fact its metal case making contact eyelets create socket re ceiver Such crystals usually delivered plas tic insulator yours lost cut 5/ x Y16-in strip plastic punch holes needle crystal pins press strip over crystals pins before inserting crystal socket now before forget Any rigid piece plastic will suffice used scrap draft ing mylar Tom Hunt used strip trim Mono Kote Both worked Fairly obvious note use pencil mark centerline punched holes graphite trail left pencil lead would short Out crystal too Noise Noise sound dont want hear Its subjective theres mosquito bed room loudness sound isnt important can prove trying measure loud ness mosquito wont able ordinary sound-level meter Perhaps tells something about depending objective measurements sound-level meter defend flying site really should read about meaning sound level measurements Eying Field Layout Meet Noise Criteria GF Abbott MA November 1987 page 34 et seq best way assess noise complaints jury system get bunch disinterested people together let listen sound ask unacceptable noise majority vote decides Basically people complain about noise make because arent doing same thing should give clue Involve neigh bors RC flying wont complain about noise have plane under construc tion sound engine adds antic ipation pleasure can show off mod el brag friends have let fly plane did great can identify themselves what doing arent interested flying talk giving themselves block party can get know neighbors Help make happen finding out about permits arranging police street closing etc keep thinking idea Introduce yourselves around make selves known real people Give reason like youand dont mention airplanes Make friends Friends make allowances friends want friend must friend Continued page 142 HANDS Espciiify fc Tdpered OFF CUT IL unique divice cutting high qualitj roam wing cores HAIIDS OFF cutting both sides same time Available hardware packaqe &jou assemble uour own boardSpeciftj 3848-5Wor 6O ordeririq size matj chanqed anJtime Max Chord 18 standard er chords available assemble Requires 4 Volt Variable Output Power Supplij DEALERS WANTED Hands Oft Cut II ware package . $8750 S&H 4 Volt Variable output power supplij$6250 5& H FOAM SHOP Foam Shop Part One Cutting Foam Wings. hour long cuts made using HANDS OFF CUT II V1-15 Only $2995 includes 5&H lower 48 Foam Shop Part Two Cutting Foam Fuselages. hour longAll cuts made using simple bow YHS Onlj $2995 includes S&H lower 48 SUPER BONDCONTACT ADUIESIYE best contact cement have ever used Onlu $375 8 oz squeeze bottle Enough 1400 sq inch wing Add $200 S&H lower 48 1/8Board Templates 4 XOnl $500 5&H inch Phenolic 36 ft INOR-RAYPRODUCTS INC 1500sendbench Road Wichita Falls TX 76310 IALANE SPECIAL Kit #32 Great Around Plane Compl Kit $6795 100% Money Back Guarantee 60 wing 41 length 630 eq wing s.715 wing 55 length 930 sq wing area 4540 engine 6090 four stroke 4 Ibs8 oz. 4 channei4540 engine 6090 four stroke Bibs. 4 channel Both kits feeture fomed cowling pre-bent landing gear harawere canopy die-cut & pre-cut parts fuil size plans complete instruction book See local hobby shop dealer first. available order direct Send check MO plane choice Pce indudes shipping & handling coo shipments also available Lime La g~ii L1e &iL 24 hr order iine ect calls accepted 314-928-7777 Skyline Hobbys Mfg 49 Treebeard Circle St Charles MO 63303 October 1988 37 Fully Aerobatic Complete Kt $4995 Made USA Curtiss Jenny * Quality hand-cut kit complete plans rigging scale control setup wire parts pre-bent special hardware included parts individually indentified packaged Decals Major Decal * Engine sizes 20 40 FS 25 TS * Wing unit removes four screws less 3 minutes flying wires left intact * Superb flight characteristics Introductory Price 13900 VISA erCard y Order Michigan residents add 4% sales tax Add $550 P&H US orders $1250 foreign Video Catalog $1250 ipost mci VHS/Beta 1*5 rebate return tape kit order Reg catalog sample mini-plan-$2 Hand-Cut Quality Affordable Price AERODROME MODELS LTD 2623 S Miller Rd 27Y__Saginaw Ml 48603 517 781-3000 Other Kits Available Aero-Pacer Baby -Pacer Gipsy Moth Flybaby Flybaby Combo Hawker Hurricane Jester expensive superfluous time take dog along vacation sniffing pawing among buffalo ruins designing executing first Na tional Convention Fun-Fly AMA took bold step forward should set pattern lasting importance pro totype certainly flew-and adver tised great fin Entrants first AMA National Fun Fly Charles Abrahams Downey CA Cliff Adams Pomona CA Gail K Adams Pomona CA Mark J Anderson Lakeport CA Richard C Anderson Reno NV Eric T Bailman Reno NV Al Beam Ketchum ID Stanley J Bellatti Gasquet CA David Bellenger Granada Hills CA Ron Bodwell Alameda CA James D Bowman Modesto CA Vemon W Brandt ncr Monterey Park CA Robert C Brogan Car son City NV Franklyn Bryant Renton WA Leland H Buhr San Mateo CA Bill E Bur kart Alameda CA David S Burwell San Jose CA Nick M Camso Brookings OR Donald R Chipman Arnold CA Peter H Chow Sunny vale CA Thomas J Crowley Monrovia CA Art Cummins Nevada City CA Cecil Den nis Boise ID Hurley M Dodd Vista CA Lester V Douglass Placerville CA John L Evans Reno NV Ken P Evana Green River WY Michael Fasolo Gold River CA David Frint Green River WY John 0 Gaines San Jose CA Dave Gardner Renton WA Melvin J Geiger Eureka CA Ron L Gilman Rosamond CA Blanche Godel N Hollywood CA Carlo Godel N Hol lywood CA Frank L Godel N Hollywood CA John C Godel N Hollywood CA Dennis K Grady San Andreas CA Patrick N Grubbs Rancho Murieta CA Gaiy Hair San Jose CA Robert Hair Pahrump NV Phillip J Haley Carson City NV John Harrab Reno NV Andy H Herskind Rohnert Park CA John M Hood San Diego CA Lawrence R Horacek Sparks NV Gerald Howell Alpine CA Kai Jensen Reno NV David Johnson Hemet CA Sophon Kanoknata Reno NV Ed Kaufman Santa Rosa CA Kathy Kautz Reno NV Marshall D Keegan Burbank CA Brandt T Kennedy Sun Valley NV Eric G Knox Walnut Creek CA Stephen Korney Norwalk CA Lawrence Krutz Reno NV Silas S Kwok Fremont CA 0 Lambiotte San Jacinto CA Jeff D Lastofica Canoga Park CA Brandon Lee Reno NV Donald L Lee Reno NV Mablon R MacPhee Canmchael CA Jeffrey Martin Sun Valley NV Leo J Martin La guna Hills CA George E Mason Arnold CA Billy 0 McDow Portland OR Howard W McFarland Crescent City CA Shannon N McGuffey Reno NV Cecil Mead Buena Park CA Kenneth G Meade Alhambra CA Larry Metz Hemet CA George Miller Rohnert Park CA Lee H Miller Sterllng CO Reed D Moore Elverta CA Sean M Moore Elverta CA Donald S Morse Carson City NV Mi chael J Myers Glendale CA Kirk S Nelson Sacramento CA Ron Nelson Reno NV Bill G OBelmito Monterey Pk CA Robert D Oilman Campbell CA Bruce D Patterson Great Falls MT Jeremy Patter son Great Falls MT Cecil H Reynolds Sunny vale CA James H Riccio Glendora CA Wen zel Roller New England ND Dennis Ross Reno NV Earl H Rummel Travis AFB CA John T Russo Arcadia CA Samuel C Russo Arcadia CA Monte C Salot Glendora CA George J San tikian Fresno CA Wilbur L Schneider San Jose CA Alan D Sharky Alhambra CA Yo shio Shida Los Angeles CA Earl N Stack house Reno NV David C Tacal Coos Bay OR John F Tavares Colorado Spgs CO Ni cholas M Tenaza Concord CA Col Bob Thacker San Clemente CA Joel E Thomas Ex ford AL Ross S Thompson Vancouver WA Jim Trimlett Portola CA Jeff Troy Reston VA Joseph M Tschirgi Santa Ana CA David Turner Spanaway WA Dale C Utterback Studio City CA William H Vanderbeek Cupertino CA Robert E Wa gener Newball CA Derek S Walldngton Lan caster CA John W Walkington Lancaster CA George E Wasson Sparks NV James Weller Yelm WA William F Weller Yeim WA Keith R Wesson Lancaster CA James V White Covina CA Melvin G White Sparks NV Thomas D White Sparks NV Charles L Willcox Renton WA Jahn M Wisniewski Scottsdale AZ Harry G Wood Long Beach CA John Worth Fairfax VA Myron E Zorger Sacramento CA Radio Technique/Myers Continued page 37 Maybe old couple living house borders field would really appreciate some did some yard work has got ahead Recognize continuous sound annoy ing quiet hum air conditioner keeping cool annoyance period blessed relief hum stops through power failure whatever did enforce five-minute No engine noise pe rind hour field effect act would give neighbors some relief limit size fuel tanks might help might give serious thought flying noiseless airplanes during mealtimes Basically problem noise control keeping neighbors quiet thing got going noise kick Bob Underwoods K&B Sportster 20-power ed Thingamabob amazed its quiet per formance 1986 Nationals came Don Lowes report noise reduction efforts Gold Coast Fliers Detray Beach FL MA July 1988 page 88 et seq visited ad dressed club February 1988 guest friend Norman Rosenstock right after incident inspired Dons re port concurrent attempt town near home eliminate RC flying via zoning ordinances based noise broke Out sound-level meter started making some measurements first measure ment point reference measured OS 15 fitted stock OS muffler 8 x 5 prop running 15%-nstro fuel installed Sig Kadet plane very easy ears measures 87 dB full throttle soundlevel meter nine feet out foot up plane grounda packed sand base ball diamond Birds make noise air model does flight oniy time $2995 Radio Shack #332050 Sound Level Meter calibrated time manufacture Calibration soundlevel meters simple could sub ject another column point Im malt ing now data uncalibrated instru ment can considered comparison 142 Model Aviation FIBERGLASS PARTS Over 237 cowls kit scratch built models Also over 34 round cowls ranging 4 14-718 diameter 55 diff size & shape wheel pants custom Make Parts Vacuum Form Canopies Pleme amid $1 complete hr T&D FIBERGLASS SPECIALTIES 30925 Block Dept 4 Garden City Ml 48135 PHONE 313 421-6358 BRAZED HEAT-TREATED Will GEAfl & CASANES PHONE 313 261-9064 thats Im offering Next bought K&B Model 5900 Sportster 45 its matching muffler put engine its firewall mount made some measurements various fuels props intake silencers aftermufflers breaking K&B muffler excellent experimented rubber mount made 3-in-diameter spongerubber wheel Summasy results Table 1 Don Lowe right biggest improvements come reducing rpm isolating engine airframe Finally put engine Lanier Javelin has blow-molded plastic-and-plywood fuse lage flew made some measure ments Overall can say K&B Sportster 45 handled nicely quietly reliably K&B fashion rubber mount made plane quieter case solid wood mount agrees Don Lowes find ings really should put effort isolat ing engine mounts Solder/Schoenberg-Shutes Continued page 40 previous freehand soldering jobs modelers may want try out such tool kit materials instruc dons available $650 postpaid RC Wiring Tool 858 NE Quimby Aye Bend Oregon 97701 RC Scale/Tschirgi Continued page 43 lightweight bracketiy include tension member between engine crankshaft bearing housing big main gear shaft can see photo Its also impossible make mounting faces brackets coplanar using simple tools Without resort some trickery whole assembly will warped tighten mounting screws trick coat bracket faces paraffin area contact firewall thick mixture epoxy microballoons firewall horizontal keep epoxy/microhaboon mixture run ning lightly bolt propulsion systems brack ets firewall paraffin keeps epoxy adhering bracket faces Dufaux flew quite well defi nitely overpowered would ROG grass strip flight phato model taken during its last flightabout two sec onds destruction flying photog rapher doing tight turn right al titude about 15 ft model snap rolled over top ie left Look closely will see models aileron rud der positions hard-over right Mark up pilot error moral Any Scale model wing washout likely grow old gracefully Another two photos 1917-vintage Bran denburg W-18 seaplane fighter designed Ernst Heinkel gained greater fame WW II Again model /6-scale has wingspan 70 An inverted old-style Supertigre ST60 pushed its 7 lb along almost sprightly style lots washout lower wings allowed mild acrobatics model worth discussing since did well Scale meets number years events flown off landed grass paved runways Two factors primary contributors success First example outstanding craftsmanship real craftsmanship doesnt count too much judge 15 ft model What judge could see interesting out-of-the-rut configuration gaudy colors markings Scale judges will score model unusual aircraft little higher Perhaps originality factor because some like myself regret old own-design bonus dropped static scoring AMA some years ago Addition ally judges presented models same aircraft type has plain-Jane finish gaudy ones will get significantly higher pointseven difference easily ap Continued page 146 October 1988 143 Table 1 Firewall-mounted K&B Sportster 45 its muffler A-scale slow Radio Shack sound-level meter located 9 ft out 1 ft up source over packed sand HardIsolated PropRPM MountMount 9x6 TF13500 97dB92dB Spr M 10x6 12000 94dB88dB 1991 Guidelines certification first equipment has certified meet narrow-band requirements AMA 1991 Guidelines listed AM4 News section month
Edition: Model Aviation - 1988/10
Page Numbers: 36, 37, 142, 143
ABSTRACT Bob Aberle retirement writing Cystal-base short circuit fix Noise philosophy measurements K&B Sportster 45 LEADER RETIRES Bob Aberlepast chair man AMA Frequency Committee prolific model designer/builder/tester Technical Edi tor Flying Models magazine past 15 yearshas retired writing model maga zines has retired working liv ing manager large aerospace firm Bob best friends can testify put time effort week being PC chairman writing pho tography people put jobs pay way through life Thats what filled file cabinet AMA HQ made writing good enough earn McEntee medal WRAMs known worldwide test reports RC systems equipment less well known management got us 80 exclu sive RC channels insider know about Bob always does own photo processing alone costs time money gener ates new model design year addition communications hobby vendors testing writing answering reader letters much did amount Would believe some 1500 pages published figure 75000 photos about 3000 letters ven dors plus another 1500 reader letters answered say nothing phone calls 20 published designs ranged Scale model Grumman Kitten same size Quickee 500 flew better 020powered Cannonball flies well Racer yet slows down land like Sail plane Designing magazines money-losing ac tivity People personally interested investigating design option feel need share results great de- Bob feels burned out efforts signs never offered magazines easy enough understand never HI-Tec HP-7RM72F receiver World Engines Expert RC system L utilizes thin plastic insulator wafer crystal pins Arrow 1 keep crystals metal case shorting out receiver touches eyelets Arrow 2 forming crystal socket happen lose insulator certain make Install new replacing crystal George tested noise-reduction idea K&B 45 Sport ster R shown mounted test stand sponge rubber model wheel used vibration/sound Isolator between engines radial mount firewall Engines mounting nuts have loosened engine pulled forward bit photo order make isolator visible used plane too its easy should try Test resuits Table 1 near end column 36 Model Aviation George Myers D Radio Thchnique 70 Froeblidi Farm Rd Hicksvilie NY 11801 Bob Aberie subject final review Flying Models magazine Sky Dancer always wants know does act right out box follow instructions given Youll have read FM find out Thats bit like friend George Myers always wants find out make anything fly Georges way learned go slow now wants play some golf take vacations wife maybe soon start playing some grandchil dren think least part burnout can traced fact model supplies tele phone taxes postage prices model magazines have gone up steadily over past 15 years Model Aviation costs per copy went $125 $175 However used get 80 pages now get least 164 pages means price paid per page went DOWN 156 cents par page 107 cents per page price per page other model magazines has gone up same period fees paid writers havent creased dime lucky break writing Bob leaves some big footprints next guy cover Field service bulletin friend Tom Hunt found out hard way plug-in crystal Hi-Tec Polks 720 World Engines Ex pert HP-7RM72F receiver may short out re ceiver fact its metal case making contact eyelets create socket re ceiver Such crystals usually delivered plas tic insulator yours lost cut 5/ x Y16-in strip plastic punch holes needle crystal pins press strip over crystals pins before inserting crystal socket now before forget Any rigid piece plastic will suffice used scrap draft ing mylar Tom Hunt used strip trim Mono Kote Both worked Fairly obvious note use pencil mark centerline punched holes graphite trail left pencil lead would short Out crystal too Noise Noise sound dont want hear Its subjective theres mosquito bed room loudness sound isnt important can prove trying measure loud ness mosquito wont able ordinary sound-level meter Perhaps tells something about depending objective measurements sound-level meter defend flying site really should read about meaning sound level measurements Eying Field Layout Meet Noise Criteria GF Abbott MA November 1987 page 34 et seq best way assess noise complaints jury system get bunch disinterested people together let listen sound ask unacceptable noise majority vote decides Basically people complain about noise make because arent doing same thing should give clue Involve neigh bors RC flying wont complain about noise have plane under construc tion sound engine adds antic ipation pleasure can show off mod el brag friends have let fly plane did great can identify themselves what doing arent interested flying talk giving themselves block party can get know neighbors Help make happen finding out about permits arranging police street closing etc keep thinking idea Introduce yourselves around make selves known real people Give reason like youand dont mention airplanes Make friends Friends make allowances friends want friend must friend Continued page 142 HANDS Espciiify fc Tdpered OFF CUT IL unique divice cutting high qualitj roam wing cores HAIIDS OFF cutting both sides same time Available hardware packaqe &jou assemble uour own boardSpeciftj 3848-5Wor 6O ordeririq size matj chanqed anJtime Max Chord 18 standard er chords available assemble Requires 4 Volt Variable Output Power Supplij DEALERS WANTED Hands Oft Cut II ware package . $8750 S&H 4 Volt Variable output power supplij$6250 5& H FOAM SHOP Foam Shop Part One Cutting Foam Wings. hour long cuts made using HANDS OFF CUT II V1-15 Only $2995 includes 5&H lower 48 Foam Shop Part Two Cutting Foam Fuselages. hour longAll cuts made using simple bow YHS Onlj $2995 includes S&H lower 48 SUPER BONDCONTACT ADUIESIYE best contact cement have ever used Onlu $375 8 oz squeeze bottle Enough 1400 sq inch wing Add $200 S&H lower 48 1/8Board Templates 4 XOnl $500 5&H inch Phenolic 36 ft INOR-RAYPRODUCTS INC 1500sendbench Road Wichita Falls TX 76310 IALANE SPECIAL Kit #32 Great Around Plane Compl Kit $6795 100% Money Back Guarantee 60 wing 41 length 630 eq wing s.715 wing 55 length 930 sq wing area 4540 engine 6090 four stroke 4 Ibs8 oz. 4 channei4540 engine 6090 four stroke Bibs. 4 channel Both kits feeture fomed cowling pre-bent landing gear harawere canopy die-cut & pre-cut parts fuil size plans complete instruction book See local hobby shop dealer first. available order direct Send check MO plane choice Pce indudes shipping & handling coo shipments also available Lime La g~ii L1e &iL 24 hr order iine ect calls accepted 314-928-7777 Skyline Hobbys Mfg 49 Treebeard Circle St Charles MO 63303 October 1988 37 Fully Aerobatic Complete Kt $4995 Made USA Curtiss Jenny * Quality hand-cut kit complete plans rigging scale control setup wire parts pre-bent special hardware included parts individually indentified packaged Decals Major Decal * Engine sizes 20 40 FS 25 TS * Wing unit removes four screws less 3 minutes flying wires left intact * Superb flight characteristics Introductory Price 13900 VISA erCard y Order Michigan residents add 4% sales tax Add $550 P&H US orders $1250 foreign Video Catalog $1250 ipost mci VHS/Beta 1*5 rebate return tape kit order Reg catalog sample mini-plan-$2 Hand-Cut Quality Affordable Price AERODROME MODELS LTD 2623 S Miller Rd 27Y__Saginaw Ml 48603 517 781-3000 Other Kits Available Aero-Pacer Baby -Pacer Gipsy Moth Flybaby Flybaby Combo Hawker Hurricane Jester expensive superfluous time take dog along vacation sniffing pawing among buffalo ruins designing executing first Na tional Convention Fun-Fly AMA took bold step forward should set pattern lasting importance pro totype certainly flew-and adver tised great fin Entrants first AMA National Fun Fly Charles Abrahams Downey CA Cliff Adams Pomona CA Gail K Adams Pomona CA Mark J Anderson Lakeport CA Richard C Anderson Reno NV Eric T Bailman Reno NV Al Beam Ketchum ID Stanley J Bellatti Gasquet CA David Bellenger Granada Hills CA Ron Bodwell Alameda CA James D Bowman Modesto CA Vemon W Brandt ncr Monterey Park CA Robert C Brogan Car son City NV Franklyn Bryant Renton WA Leland H Buhr San Mateo CA Bill E Bur kart Alameda CA David S Burwell San Jose CA Nick M Camso Brookings OR Donald R Chipman Arnold CA Peter H Chow Sunny vale CA Thomas J Crowley Monrovia CA Art Cummins Nevada City CA Cecil Den nis Boise ID Hurley M Dodd Vista CA Lester V Douglass Placerville CA John L Evans Reno NV Ken P Evana Green River WY Michael Fasolo Gold River CA David Frint Green River WY John 0 Gaines San Jose CA Dave Gardner Renton WA Melvin J Geiger Eureka CA Ron L Gilman Rosamond CA Blanche Godel N Hollywood CA Carlo Godel N Hol lywood CA Frank L Godel N Hollywood CA John C Godel N Hollywood CA Dennis K Grady San Andreas CA Patrick N Grubbs Rancho Murieta CA Gaiy Hair San Jose CA Robert Hair Pahrump NV Phillip J Haley Carson City NV John Harrab Reno NV Andy H Herskind Rohnert Park CA John M Hood San Diego CA Lawrence R Horacek Sparks NV Gerald Howell Alpine CA Kai Jensen Reno NV David Johnson Hemet CA Sophon Kanoknata Reno NV Ed Kaufman Santa Rosa CA Kathy Kautz Reno NV Marshall D Keegan Burbank CA Brandt T Kennedy Sun Valley NV Eric G Knox Walnut Creek CA Stephen Korney Norwalk CA Lawrence Krutz Reno NV Silas S Kwok Fremont CA 0 Lambiotte San Jacinto CA Jeff D Lastofica Canoga Park CA Brandon Lee Reno NV Donald L Lee Reno NV Mablon R MacPhee Canmchael CA Jeffrey Martin Sun Valley NV Leo J Martin La guna Hills CA George E Mason Arnold CA Billy 0 McDow Portland OR Howard W McFarland Crescent City CA Shannon N McGuffey Reno NV Cecil Mead Buena Park CA Kenneth G Meade Alhambra CA Larry Metz Hemet CA George Miller Rohnert Park CA Lee H Miller Sterllng CO Reed D Moore Elverta CA Sean M Moore Elverta CA Donald S Morse Carson City NV Mi chael J Myers Glendale CA Kirk S Nelson Sacramento CA Ron Nelson Reno NV Bill G OBelmito Monterey Pk CA Robert D Oilman Campbell CA Bruce D Patterson Great Falls MT Jeremy Patter son Great Falls MT Cecil H Reynolds Sunny vale CA James H Riccio Glendora CA Wen zel Roller New England ND Dennis Ross Reno NV Earl H Rummel Travis AFB CA John T Russo Arcadia CA Samuel C Russo Arcadia CA Monte C Salot Glendora CA George J San tikian Fresno CA Wilbur L Schneider San Jose CA Alan D Sharky Alhambra CA Yo shio Shida Los Angeles CA Earl N Stack house Reno NV David C Tacal Coos Bay OR John F Tavares Colorado Spgs CO Ni cholas M Tenaza Concord CA Col Bob Thacker San Clemente CA Joel E Thomas Ex ford AL Ross S Thompson Vancouver WA Jim Trimlett Portola CA Jeff Troy Reston VA Joseph M Tschirgi Santa Ana CA David Turner Spanaway WA Dale C Utterback Studio City CA William H Vanderbeek Cupertino CA Robert E Wa gener Newball CA Derek S Walldngton Lan caster CA John W Walkington Lancaster CA George E Wasson Sparks NV James Weller Yelm WA William F Weller Yeim WA Keith R Wesson Lancaster CA James V White Covina CA Melvin G White Sparks NV Thomas D White Sparks NV Charles L Willcox Renton WA Jahn M Wisniewski Scottsdale AZ Harry G Wood Long Beach CA John Worth Fairfax VA Myron E Zorger Sacramento CA Radio Technique/Myers Continued page 37 Maybe old couple living house borders field would really appreciate some did some yard work has got ahead Recognize continuous sound annoy ing quiet hum air conditioner keeping cool annoyance period blessed relief hum stops through power failure whatever did enforce five-minute No engine noise pe rind hour field effect act would give neighbors some relief limit size fuel tanks might help might give serious thought flying noiseless airplanes during mealtimes Basically problem noise control keeping neighbors quiet thing got going noise kick Bob Underwoods K&B Sportster 20-power ed Thingamabob amazed its quiet per formance 1986 Nationals came Don Lowes report noise reduction efforts Gold Coast Fliers Detray Beach FL MA July 1988 page 88 et seq visited ad dressed club February 1988 guest friend Norman Rosenstock right after incident inspired Dons re port concurrent attempt town near home eliminate RC flying via zoning ordinances based noise broke Out sound-level meter started making some measurements first measure ment point reference measured OS 15 fitted stock OS muffler 8 x 5 prop running 15%-nstro fuel installed Sig Kadet plane very easy ears measures 87 dB full throttle soundlevel meter nine feet out foot up plane grounda packed sand base ball diamond Birds make noise air model does flight oniy time $2995 Radio Shack #332050 Sound Level Meter calibrated time manufacture Calibration soundlevel meters simple could sub ject another column point Im malt ing now data uncalibrated instru ment can considered comparison 142 Model Aviation FIBERGLASS PARTS Over 237 cowls kit scratch built models Also over 34 round cowls ranging 4 14-718 diameter 55 diff size & shape wheel pants custom Make Parts Vacuum Form Canopies Pleme amid $1 complete hr T&D FIBERGLASS SPECIALTIES 30925 Block Dept 4 Garden City Ml 48135 PHONE 313 421-6358 BRAZED HEAT-TREATED Will GEAfl & CASANES PHONE 313 261-9064 thats Im offering Next bought K&B Model 5900 Sportster 45 its matching muffler put engine its firewall mount made some measurements various fuels props intake silencers aftermufflers breaking K&B muffler excellent experimented rubber mount made 3-in-diameter spongerubber wheel Summasy results Table 1 Don Lowe right biggest improvements come reducing rpm isolating engine airframe Finally put engine Lanier Javelin has blow-molded plastic-and-plywood fuse lage flew made some measure ments Overall can say K&B Sportster 45 handled nicely quietly reliably K&B fashion rubber mount made plane quieter case solid wood mount agrees Don Lowes find ings really should put effort isolat ing engine mounts Solder/Schoenberg-Shutes Continued page 40 previous freehand soldering jobs modelers may want try out such tool kit materials instruc dons available $650 postpaid RC Wiring Tool 858 NE Quimby Aye Bend Oregon 97701 RC Scale/Tschirgi Continued page 43 lightweight bracketiy include tension member between engine crankshaft bearing housing big main gear shaft can see photo Its also impossible make mounting faces brackets coplanar using simple tools Without resort some trickery whole assembly will warped tighten mounting screws trick coat bracket faces paraffin area contact firewall thick mixture epoxy microballoons firewall horizontal keep epoxy/microhaboon mixture run ning lightly bolt propulsion systems brack ets firewall paraffin keeps epoxy adhering bracket faces Dufaux flew quite well defi nitely overpowered would ROG grass strip flight phato model taken during its last flightabout two sec onds destruction flying photog rapher doing tight turn right al titude about 15 ft model snap rolled over top ie left Look closely will see models aileron rud der positions hard-over right Mark up pilot error moral Any Scale model wing washout likely grow old gracefully Another two photos 1917-vintage Bran denburg W-18 seaplane fighter designed Ernst Heinkel gained greater fame WW II Again model /6-scale has wingspan 70 An inverted old-style Supertigre ST60 pushed its 7 lb along almost sprightly style lots washout lower wings allowed mild acrobatics model worth discussing since did well Scale meets number years events flown off landed grass paved runways Two factors primary contributors success First example outstanding craftsmanship real craftsmanship doesnt count too much judge 15 ft model What judge could see interesting out-of-the-rut configuration gaudy colors markings Scale judges will score model unusual aircraft little higher Perhaps originality factor because some like myself regret old own-design bonus dropped static scoring AMA some years ago Addition ally judges presented models same aircraft type has plain-Jane finish gaudy ones will get significantly higher pointseven difference easily ap Continued page 146 October 1988 143 Table 1 Firewall-mounted K&B Sportster 45 its muffler A-scale slow Radio Shack sound-level meter located 9 ft out 1 ft up source over packed sand HardIsolated PropRPM MountMount 9x6 TF13500 97dB92dB Spr M 10x6 12000 94dB88dB 1991 Guidelines certification first equipment has certified meet narrow-band requirements AMA 1991 Guidelines listed AM4 News section month
