ohn Preston Safety Cdmes First Wind can safe ty consideration taxi RC model pit area info engines backfire CREDIT sub ject first topic months Safety column goes Lehigh Valley RC Society newsletter editor Tom Bilheimer Oddly enough read Toms article Prop Wash news letter Detroit Aero Modelers RC club subject wind case wondering affects safety hobby think about crashes occur flying field windy day compared calm day does wind affect flight performance model airplane theory other CL models shouldnt have effect once model airborne Consider foliowing situation used Tom Bilheimer illustrate models flight characteristics dependent its direction relative wind direction full appreciation what wind does does aircraft flight can clarified quite simply mathematical formulae pur pose article will make use aircraft carrier wind blowing 30 mph carrier traveling precisely downwind also 30 mph standing deck ready-to-fly model side air surrounds perfect ly still have accustomed taking off wind now can take off directionthere will no dif ference climb 90 feet level out Because now height has change status quo relating model car rier air mass Noneother fact model now has its own self-generated airflowits airspeed Now some aerobatics normally perform upwind down windbut going today realize cannot model will respond exactly same manner signals regard less its heading five-second slow roll will use up same amount airspace whichever heading fly fly perfect circleat constant rate turn altitude will eventually hit own slipstreameven though wind blowing 30 mph Whatever choose make air craft will its heading make dif ference Obviously Can aircraft have good bad crosswind flying charac teristics Obviously Now imagine transposed flash nearby island Certainly wind now blowing against 30 mph does aircraft realize no longer carrier Will behave differently now cannot see can Im sure will readers will come up some arguments try disprove logic account about wind However try may wind blowing constant speed will impossible disagree models direction relative perceived wind direction observed sta tionary land mass will have effect models flight characteristics 10 Model Aviation newsletter article wind ended few funnies Im sure must have heard uttered unin formed modelers particular wing section tends make aircraft balloon turned wind motor doesnt perform well flying downwind rudder fm area little large bit problem crosswind attempting stall turn wind blew onto its back couldnt pull out dive time because going downwind can add another funny list times have heard someone say Its great performer windy weather because has fantastic penetra tion merely another way say ing model fast penetrates well goes fast upwind will also pene trate just well go faster relative ground going downwind sup pose could also get back Great Downwind Turn Controversy period ically makes its rounds Readers Letters section model magazines However doubt can add anything Continued page 12 4 -Z J- - ONCE WE GtW ER AIR&iE WIND Wc*4T POBLEtA 1 % -LINKS Tried true spring steel kwik links No 109 2-56 Thread No 304 4-40 Thread included Cat No 106 2-56 THD Cat No 306 4-40 THD ic4 NICKLE PLATED STEEL 1/4 SCALE TURN BUCKLES DuBro Turnbuckles look goed theyre fully functional Attached guy wires Itlyng wires add working touch class Cat No 300 SPRING ACTION ____ Locks Kwik Klip onto gIn 1r~ plug continuous positive contact No 150 w/o wires No 151 wfwires KWIK-FILL FUEL PUMPS eaj\ Complete Fueling System includes Cap Fittings Fuel Tubing Filter iI&lIi Hand Operated Pumps Out Fits IIrvaw gallon quart pint size cans No 191 910 Fuel No 250 Gas/diesel ____-m MCKEL SOLDER LINKS Easy solder connectors servo horn Includes 2 links & 2 link guards No 112 Solder Links 2-56 No 305 Solder Links 4-40 Socket Head Bolt BALL WRENCH SET Fits 4-40 6-32 head bolts Leads cap screw head angle 3 blades No 132 4-WAY SOCKET WRENCH Perfect glo plugs prop nuts nylon bolts No 251 516 38 12 KWIK-GLO ICLEARNEOPRENE& Gb Plug ConnectorFUEL TUBING piece brass SUPER BLUE SILICONE barrel snaps Onto plug positive startI 24 long batt lugs No 147 THE FINAL FILTER Only 11/4 long Filters Either Direction ultimate in-line fitter twice much fuel filtering capacity No 162 FT Available off roll packaged 2 lengths TYPE Clear Vinyl Clear Vinyl Clear vinyl Silicone Silicone Silicone Neoprene Neoprene Neoprene SIZE Sm Med Lg Sm Med Lg Sm Med Lg NO 218 219 220 221 222 223 224 225 226 DU-BRO Fuel Tanks come complete tank hardware soft brass tubing positive flow clunk fuel pick-up Available 8 sizes 2 oz 16 oz capacity CAT DESCRIPTION 4022 oz SQUARE FUEL TANK 4044 oz SQUARE FUEL TANK 4066 oz SQUARE FUEL TANK 4086 oz SQUARE FUEL TANK 41010 oz SQUARE FUEL TANK 4121202 SQUARE FUEL TANK 41414 oz SQUARE FUEL TANK 416- 10 02 SQUARE FUEL TANK has already said times before convert unbelievers Models will turn just well going upwind will going down wind dont believe go rent aircraft carrier run own tests guess like complete flight RC pride joy taxiing back through pits parking beside field box laying hand column has previously discouraged such practice article December 1983 issue Update newsletter Santa Barbara RC Modelers illustrates may hazardous Gordon Smith author radios good usually can lull us false sense securi ty BUTwe have seen time plane boat car goes wild usually takes place good way out trans mitter causes damage model incident shows need exercise caution times Labor Day Club Field Day taxiing Tiger Moth park next field box plane stopped next box motor idling Silently congratulating myself realistic per formance moved throttle trim low kill motor Suddenly unexpectedly engine came life full throttle plane lunged forward couple ladies sitting chatting Moth heading leg ladies miracle caused plane swerve left slightly propeller hit against chair leg instead ladys leg Both us bad scare Later shop checked radio fully found nothing could have caused incident Possi bly interference nearby ra dio point isdont taxi pit area plane taking off pits very scary thing takes throt tle glitch similar message about hazard taxiing pit area included Gold Coast Flyer newsletter Gold Coast Radio Controllers edited Art Charlotte Johnson newsletter reported last Board Di rectors meeting discussed recent inci dents some RC receivers can overpowered RF radio frequency transmitter receivers frequency model passes very close offending transmitter does happen receivers problem happens often enough should never take chance taxiing directly towards people cars models pit area sudden surge full throttle model passes transmitter turned pits can cause disaster problem can minimized walking Continued page 14 12 Model Aviation THE TRUSTED NAME IN MODEL PRODUCTS 4 IT CAMANO 100 IT MINI WINDSONG S BOTH.. itis ALL NEW CANANO 100 new ship THE WIN OSONG OF STANDARD CLASS have seen well fl7i Wlndsong know no higher tnbute could paid standard class glider New Camano 100 features Windsongs 214 airlbil sleek innovative strong fiberglass fuselage construction Der Devastator stabflap compensator 80 degree flaps hold speed down near vertical dives eliminating need lbr efficiency robbing spoilers handling perfbrmance would expect 100 inch Windsong NEW CAMANO 100 can flown full function simple three channel radio kit complete deluxe foam core flying surfaces fiberglass fuselage hardware including Der Devastator balsa hand selected 3 times wood parts carefully hand machined new Camano 100 solid core winged multichannel standard class thermal duration competition glider available OFFERS TRUE CLASS STANDARD CLASS FOR THE BEST THERE IS IN ANY CLASS DODGSON DESIGNS WINOSONG CAMANO 100 AND KMINNOW ARE YOUR ONLY CHOICE SEE US AT THE 1984 NATIONALS IN RENO will Peppermill motel OR SOARING FIELD August 5 8 OUR FACTORY Camano Island WILL BE CLOSED AUGUST 3 19 attending Nationals SEND TWO STAMPS COMPLETE CATALOG giving full information Open Class Windsong $19995 new Standard Class Camano 100 $15995 2-Meter KMinnow $14995 PHONE 206 3817412 1 q oaei aviation beside taxiing model shutting down before getting too close point ing towards something someone would care hit couple issues ago reprinted club newsletter article written Orville Mills Oregon modeler about hazard props big four-stroke engines being thrown off engine backfires dur ing starting article drew attention presence two drive pins prop drive washer Enya 90 four-stroke should prevent occurring Shortly after magazine containing article came out received letter Scott Fahnestock World Engines Scott following say new OS FS-90s plus FS-l20s 108 FSRs forthcoming OS en gines over 60 displacement have four pins drive washer hold prop place OS strongiy recommends usage Please pass Orville Mills Safety Comes First MA June 1984 p 14 Scott aiso sent instructions ac company OS FS-90 four-stroke en gine state advisable use electric starter starting although hand-starting also possible structions contained very comprehensive description go about starting engine both electric starter using hand-starting techniques latter method recommended using lightweight wooden propellers owners instructed 'be sure wear heavy glove use chicken stick Staying subject safety starting tuning engines continue urge readers move location behind prop arc before making fuel mix ture adjustments August 1983 issue Windy City newsletter Al Brose wrote Just recently RC flier makes good practice adjust necdie valve behind engine 3-in plastic spinner shatter warn ing spinner broke apart also caused prop break spinner broke about 10 pieces flew far 50 feet away flier sure giad wasnt front plane happened However case think station ing yourself behind prop arc puts personage totally out harms way consider what editor Loin Baczkowski say Sundown Gazette newsletter Midwest Sundowners RC Club 'A back bought model Suburban Aeroclub Chicagos annual auction man bought model well-experienced hobby As got talking noticed - two middle fingers left hand somewhat shorter normal lit tle shocked shaken find out happened adjusting idle twin engine misfired Continued page 125 Megan Uodgson new Camano 100 MODEL PRODUCTS CORR BOX 314 Ponipton Plains NJ07444 Letters Editor Continued page 8 designs Ive thought useful along modification routine case first guess too far off base also print out hard copy whenever Im reasonably satis fied what see screen what want am no stretch imagination accomplished programmer Therefore software design professionally per fect does job think interesting thing about articles like yours mentioned text simple program can run some very inexpensive computers such Sinclair wili just good ajob com puters costing orders magnitude Anyway thanks Model Aviation contributors Sarpo lus Rand Van Putte Don Burke Stanton CA Judging mail already received about article seems people home computers eager try out modeling uses computer-related articles works Firebolt Revisited Since submitted Firebolt article publication have gotten flight expe rience additional information has come friend Nick Nicholson has flying Firebolt Georgia information may interest MA readers article mentioned aircrafts tendency go nose-high attitude po er cut handled holding Li some down-elevator during landings putting some down-trim transmitter better way tilt engine thrust line up 30 shim ming engine engine mount used molded nylon engine mount thrust plates Ernst Mfg Co After slight re trimming level flight under full power aircraft now remains trim power cut discussed spins article tried until recently Nick reported spun Firebolt several times will recover Hes right have now snapped spun aircraft number times no problem spin con trols neutralized plane continues spin opposite control comes out spin within turn two snaps spins fun Since made twin fins rudders firm -in balsa anchored secure ly Ive no trouble Nick re ports Firebolt has again lost complete fin/rudder assembly flying landed safely dead-stick re maining fm/rudder intact airplane has lot flying time assume vibration possibly some kind aerodynamic loading really tough twin fins urge made firm wood reinforcing built fuselage Possibly thin fiberglass cloth epoxy could used around fin/ fuselage joints strength Dick Sarpolus Shrewsbury NJ SafetylPreston Continued page 14 started running backwards model moved backwards catching fingers prop arc fingers severed first joint possible reason big four-stroke engines backfiring and/or running back wards may because owners following instructions come Continued page 128 34 Channel R/C Systems$3995 Balsa & Ply Construction add $2 pontageiharrdhng Wingspan 35 45 Engines W g Engines GIANT RIC SCALE Marane SAULNIER N Taspan sa Fumala9a1500 Sq AracBeautitit new production kits Old lavo ten Youke DntailMoldd Canopythe rugged ConstruCtion lit die-cut parts Both have * Ragged Pibngia. Moldod Engina cowling piete Kit $27500a history ot ountest wins Easy Build superB light * V Plywood Plwail Hoedwon innindadpis Stddg shroping & handingPlease add $2 poslagelhandling * Formod V dia Landing Gao Lags ey encesSretundedt Rollod PI lnntonionn residents add * Dealer Inquiries Now Invited $4395 GD..m gust 1984125 ATTENTION 1A SCALERS EPOXY GLASS COWLS FOR NOSEN PICA SID MOAGAIK 84L54 USA PLAfl CONCEPT FLEET IIoSTETLEa ACM T-CPAPT SHEBER PITTS Vs & SCALE SUPER CUB POKKEAO-7 BOEING P-12 P26 P402 P404 SPARROW HAWK GEE BEE MOD Y MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELLAS STARDLISTER II Vs SCALE iS-BI BABY PLYBABY AIRCAMPER PILOT JUIVGIAANN 73B SCALE 7/4 SCALE OECATIdALON PIPER PA-tB & OTHERS WHEEL PANTS FOR CITABRIA STARDUS TEA II P/ITS SKYBOLT LIBER7YSPORT CHRISTEN EAGLE P6 E HAWK STEARMAPL S77NSON SR-S MULLIGAN & OTHERS 8RZEO& HEAT-ThEATED WIRE GEARSO CABANES LARGE SCALE PLANS AVAILADLE Send $100 latest list supply Modelers fiberglasa parts plansWrite call us T & D FIBERGLASS SPECIALTIES 30925 BLOCK GARDEN CItY MI 48135 PHONE 313 421-6358 HEAD LOCK NEW STANDARD bmm4~ILA OK fl/ FOR GLOW PLUG CONNECTORS CHECK THESE FEATURES US PAT4 $3952 Push twist its off 3Will favoritecomeeven under heavy hobby dealer eo,ialale w,in dvwct aid 5 SI outside t out S Positive spring contact 6 30 inch lead wire j 45 ENS/NE 4 7Angle Thrust Line Upward Three Degrees it- - I ~I i \ PAD/AL ENGINE MOUNT MI - iI/SF PLY DOUBLERS FROM HERE TO BULKHEAD 5 CONTIOLINI TIllS PROFILE0COMBA 70RA T WIDE & NARROW WEDGE 15 -- 6 oz Capaities UNIFLOW & STIKID Custom uSDA Fuel Ingredients detailed brachufeSOC stamps/check onl CAROLINA-TAFFIN DER 8345 Delhi Road charleston Hgts. SC 29418 803-553-7169 World War isnt Quite Over Yet EINDECKER E-III ILEUZL 861 horn RoadSan Antonio TX 78216 512341-6712 FUTABA 7FGKFM20995 6FGK FMSOLD OUT 7FGK18495 6FGK16495 5FGK15495 6FG15495 4FG14395 4L3-5/2810495 2F2/S-28-R4Hj7495 S-28SERVO1895 S-32SERVO2595 COVERINGS Monokole Opaque 3 Rolls 1695 Monokote Trans. 3 Rolls 1695 Monokote Mel 3 Rolls 2095 CYANOACRYLATE Hot Stuff HS-t e149 Hot Stuff HST-t e149 Hot Stuff HS-4 2 Ounce499 Hot Stuff HST4 2 Ounce499 Hot Shot245 Jet t2 Ounce179 Super Jet e179 Jet 2 Ounce599 Super Jet 2 Ounce599 EPOXY GLUE ISescon 30 Minute 9 Ounce 595 Descon 5 Minute 9 Ounce 595 Hobby pos 118 Ounce 359 Hohbvpos IV 8 Ounce 559 Hobbyposy 1118 Ounce 295 SULLIVAN HT 0600 Starter 2595 HID #601 Starter 2695 HTD-24 #602 Starter 3695 PLEASE NOTE Prices subject change manufacturers prices change items subject axaitahilily time sale Prices effect until nest Model Aslation Issue Show room prices may slightly higher Visit show room white San Antonio 100 foe discount price list refunded first order Shipping & Handling Prepaid orders 5300 COD Credit Curd orders $595 Overseas orders add estimated shipping 25% deposit required first time COD 55% sales las required Texas residents Personal check dela shipping 15 days PRODUCTS FOR THE DISCERNING MODELER Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers copter Ball Mufflers * Specialized Exhaust Systems Unsurpassed Workmnnshin h Pndomanc Check SafetylPreson Continued page 125 engines letter Al Alman well-known writer about big bird happenings discussed four-stroke backfirings Al stated has number letters phone calls subject also stated discussed Scott Fahnestock following say OS engines designed run standard glow fuel problems try ing run too little oil Asec ond reason prop hazard using too much nitro 10% maximum third reason inveterate tweaker runs engines too lean problem compounded because four-stroke tuning quite broad two-stroke-oriented people prone go right past op timum setting lean run means elevated cylinder head temperature leads detonation prop-slinging Als letter also mentioned another hazard associated propellers bottom drawstrings found warm up jackets normally use club jackets Al went state very potential hazard mentioned club meeting whaddayaknow next day got graphic illustration out field other pilot wearing type jackets course drawstrings flapping breeze 60 four-stroke being hard get along sudden kneeling off balance engine startedsucking loose string ends 14-in prop puffing him up against engine What saved him badly cut-up groin lousy idle set ting engine too happy quit idle better throttle some higher setting would have really bad scene~ jacket-drawstring incident reminds similar hazard exists hap pen RC filer uses neckstrap saxophone style support trans mitter Beware unhooked transmitter dangling free around neck may well get tangled prop during starting opera tion last tip month mentioned couple years ago con cerns Dremel belt sanders table saws previously pointed out need clean balsa dust out tools after use prevent possible fire hazard believe instructions also point out need An article February 1984 issue Flypaper newsletter Milwau kee Flying Electrons Russell Knetzger editor has another solution note Russell credits Dave Copernan Cir clemasters Flying Club author following account dont know use Dremel tools unusual occur rence happen using Dremel sander After Ive used couple times clean real good vacuuming inside out including motor time after finished using could smell wood smoldering checked inside sander around belt see spark started something everything looked OK So continued project once could smell smoldering wood decided vacuum out sander try find cause smell What discovered surprised puzzled As said before vacuum motor Im cleaning up time saw glowing embers inside motor already unplugged sander wasnt sure what should didnt want use fire extinguisher didnt want stick anything holes fear damaging motor decided gently blow embers until out kept fire extinguisher handy just case After out removed motor sander check damage opened up motor com pletely cleaned out charred dust couldnt see physical damage motor wires intact insulation harmed thing found phenolic board cou ple black smudges reassembled motor tested itit ran perfectly Evidently vacuum cleaner cant reach dust accumulates back motor arcing brushes starts dust smoldering now wanted something prevent happening again Add ing filter sander housing would prevent dust entering motor So decided put filter motor series holes end motor housing cooling air enter Using 3-M particle mask cut ting proper size taped back motor also have Dremel table saw noticed same smell once after using could never locate problem After removing motor saw same condition found cleaned added filter motor also Now vacuum tools dust outside filter easily cleaned off also noticed crease rpms motors both saw sander have either tools might want check before problem occurs Have safe monthboth off flying field John Preston 12235 Tilden wood Dr Rockville MD 20852 writing advertisers mention read about Model Aviation 128 Model Aviation
Edition: Model Aviation - 1984/08
Page Numbers: 10, 12, 14, 125, 128
ohn Preston Safety Cdmes First Wind can safe ty consideration taxi RC model pit area info engines backfire CREDIT sub ject first topic months Safety column goes Lehigh Valley RC Society newsletter editor Tom Bilheimer Oddly enough read Toms article Prop Wash news letter Detroit Aero Modelers RC club subject wind case wondering affects safety hobby think about crashes occur flying field windy day compared calm day does wind affect flight performance model airplane theory other CL models shouldnt have effect once model airborne Consider foliowing situation used Tom Bilheimer illustrate models flight characteristics dependent its direction relative wind direction full appreciation what wind does does aircraft flight can clarified quite simply mathematical formulae pur pose article will make use aircraft carrier wind blowing 30 mph carrier traveling precisely downwind also 30 mph standing deck ready-to-fly model side air surrounds perfect ly still have accustomed taking off wind now can take off directionthere will no dif ference climb 90 feet level out Because now height has change status quo relating model car rier air mass Noneother fact model now has its own self-generated airflowits airspeed Now some aerobatics normally perform upwind down windbut going today realize cannot model will respond exactly same manner signals regard less its heading five-second slow roll will use up same amount airspace whichever heading fly fly perfect circleat constant rate turn altitude will eventually hit own slipstreameven though wind blowing 30 mph Whatever choose make air craft will its heading make dif ference Obviously Can aircraft have good bad crosswind flying charac teristics Obviously Now imagine transposed flash nearby island Certainly wind now blowing against 30 mph does aircraft realize no longer carrier Will behave differently now cannot see can Im sure will readers will come up some arguments try disprove logic account about wind However try may wind blowing constant speed will impossible disagree models direction relative perceived wind direction observed sta tionary land mass will have effect models flight characteristics 10 Model Aviation newsletter article wind ended few funnies Im sure must have heard uttered unin formed modelers particular wing section tends make aircraft balloon turned wind motor doesnt perform well flying downwind rudder fm area little large bit problem crosswind attempting stall turn wind blew onto its back couldnt pull out dive time because going downwind can add another funny list times have heard someone say Its great performer windy weather because has fantastic penetra tion merely another way say ing model fast penetrates well goes fast upwind will also pene trate just well go faster relative ground going downwind sup pose could also get back Great Downwind Turn Controversy period ically makes its rounds Readers Letters section model magazines However doubt can add anything Continued page 12 4 -Z J- - ONCE WE GtW ER AIR&iE WIND Wc*4T POBLEtA 1 % -LINKS Tried true spring steel kwik links No 109 2-56 Thread No 304 4-40 Thread included Cat No 106 2-56 THD Cat No 306 4-40 THD ic4 NICKLE PLATED STEEL 1/4 SCALE TURN BUCKLES DuBro Turnbuckles look goed theyre fully functional Attached guy wires Itlyng wires add working touch class Cat No 300 SPRING ACTION ____ Locks Kwik Klip onto gIn 1r~ plug continuous positive contact No 150 w/o wires No 151 wfwires KWIK-FILL FUEL PUMPS eaj\ Complete Fueling System includes Cap Fittings Fuel Tubing Filter iI&lIi Hand Operated Pumps Out Fits IIrvaw gallon quart pint size cans No 191 910 Fuel No 250 Gas/diesel ____-m MCKEL SOLDER LINKS Easy solder connectors servo horn Includes 2 links & 2 link guards No 112 Solder Links 2-56 No 305 Solder Links 4-40 Socket Head Bolt BALL WRENCH SET Fits 4-40 6-32 head bolts Leads cap screw head angle 3 blades No 132 4-WAY SOCKET WRENCH Perfect glo plugs prop nuts nylon bolts No 251 516 38 12 KWIK-GLO ICLEARNEOPRENE& Gb Plug ConnectorFUEL TUBING piece brass SUPER BLUE SILICONE barrel snaps Onto plug positive startI 24 long batt lugs No 147 THE FINAL FILTER Only 11/4 long Filters Either Direction ultimate in-line fitter twice much fuel filtering capacity No 162 FT Available off roll packaged 2 lengths TYPE Clear Vinyl Clear Vinyl Clear vinyl Silicone Silicone Silicone Neoprene Neoprene Neoprene SIZE Sm Med Lg Sm Med Lg Sm Med Lg NO 218 219 220 221 222 223 224 225 226 DU-BRO Fuel Tanks come complete tank hardware soft brass tubing positive flow clunk fuel pick-up Available 8 sizes 2 oz 16 oz capacity CAT DESCRIPTION 4022 oz SQUARE FUEL TANK 4044 oz SQUARE FUEL TANK 4066 oz SQUARE FUEL TANK 4086 oz SQUARE FUEL TANK 41010 oz SQUARE FUEL TANK 4121202 SQUARE FUEL TANK 41414 oz SQUARE FUEL TANK 416- 10 02 SQUARE FUEL TANK has already said times before convert unbelievers Models will turn just well going upwind will going down wind dont believe go rent aircraft carrier run own tests guess like complete flight RC pride joy taxiing back through pits parking beside field box laying hand column has previously discouraged such practice article December 1983 issue Update newsletter Santa Barbara RC Modelers illustrates may hazardous Gordon Smith author radios good usually can lull us false sense securi ty BUTwe have seen time plane boat car goes wild usually takes place good way out trans mitter causes damage model incident shows need exercise caution times Labor Day Club Field Day taxiing Tiger Moth park next field box plane stopped next box motor idling Silently congratulating myself realistic per formance moved throttle trim low kill motor Suddenly unexpectedly engine came life full throttle plane lunged forward couple ladies sitting chatting Moth heading leg ladies miracle caused plane swerve left slightly propeller hit against chair leg instead ladys leg Both us bad scare Later shop checked radio fully found nothing could have caused incident Possi bly interference nearby ra dio point isdont taxi pit area plane taking off pits very scary thing takes throt tle glitch similar message about hazard taxiing pit area included Gold Coast Flyer newsletter Gold Coast Radio Controllers edited Art Charlotte Johnson newsletter reported last Board Di rectors meeting discussed recent inci dents some RC receivers can overpowered RF radio frequency transmitter receivers frequency model passes very close offending transmitter does happen receivers problem happens often enough should never take chance taxiing directly towards people cars models pit area sudden surge full throttle model passes transmitter turned pits can cause disaster problem can minimized walking Continued page 14 12 Model Aviation THE TRUSTED NAME IN MODEL PRODUCTS 4 IT CAMANO 100 IT MINI WINDSONG S BOTH.. itis ALL NEW CANANO 100 new ship THE WIN OSONG OF STANDARD CLASS have seen well fl7i Wlndsong know no higher tnbute could paid standard class glider New Camano 100 features Windsongs 214 airlbil sleek innovative strong fiberglass fuselage construction Der Devastator stabflap compensator 80 degree flaps hold speed down near vertical dives eliminating need lbr efficiency robbing spoilers handling perfbrmance would expect 100 inch Windsong NEW CAMANO 100 can flown full function simple three channel radio kit complete deluxe foam core flying surfaces fiberglass fuselage hardware including Der Devastator balsa hand selected 3 times wood parts carefully hand machined new Camano 100 solid core winged multichannel standard class thermal duration competition glider available OFFERS TRUE CLASS STANDARD CLASS FOR THE BEST THERE IS IN ANY CLASS DODGSON DESIGNS WINOSONG CAMANO 100 AND KMINNOW ARE YOUR ONLY CHOICE SEE US AT THE 1984 NATIONALS IN RENO will Peppermill motel OR SOARING FIELD August 5 8 OUR FACTORY Camano Island WILL BE CLOSED AUGUST 3 19 attending Nationals SEND TWO STAMPS COMPLETE CATALOG giving full information Open Class Windsong $19995 new Standard Class Camano 100 $15995 2-Meter KMinnow $14995 PHONE 206 3817412 1 q oaei aviation beside taxiing model shutting down before getting too close point ing towards something someone would care hit couple issues ago reprinted club newsletter article written Orville Mills Oregon modeler about hazard props big four-stroke engines being thrown off engine backfires dur ing starting article drew attention presence two drive pins prop drive washer Enya 90 four-stroke should prevent occurring Shortly after magazine containing article came out received letter Scott Fahnestock World Engines Scott following say new OS FS-90s plus FS-l20s 108 FSRs forthcoming OS en gines over 60 displacement have four pins drive washer hold prop place OS strongiy recommends usage Please pass Orville Mills Safety Comes First MA June 1984 p 14 Scott aiso sent instructions ac company OS FS-90 four-stroke en gine state advisable use electric starter starting although hand-starting also possible structions contained very comprehensive description go about starting engine both electric starter using hand-starting techniques latter method recommended using lightweight wooden propellers owners instructed 'be sure wear heavy glove use chicken stick Staying subject safety starting tuning engines continue urge readers move location behind prop arc before making fuel mix ture adjustments August 1983 issue Windy City newsletter Al Brose wrote Just recently RC flier makes good practice adjust necdie valve behind engine 3-in plastic spinner shatter warn ing spinner broke apart also caused prop break spinner broke about 10 pieces flew far 50 feet away flier sure giad wasnt front plane happened However case think station ing yourself behind prop arc puts personage totally out harms way consider what editor Loin Baczkowski say Sundown Gazette newsletter Midwest Sundowners RC Club 'A back bought model Suburban Aeroclub Chicagos annual auction man bought model well-experienced hobby As got talking noticed - two middle fingers left hand somewhat shorter normal lit tle shocked shaken find out happened adjusting idle twin engine misfired Continued page 125 Megan Uodgson new Camano 100 MODEL PRODUCTS CORR BOX 314 Ponipton Plains NJ07444 Letters Editor Continued page 8 designs Ive thought useful along modification routine case first guess too far off base also print out hard copy whenever Im reasonably satis fied what see screen what want am no stretch imagination accomplished programmer Therefore software design professionally per fect does job think interesting thing about articles like yours mentioned text simple program can run some very inexpensive computers such Sinclair wili just good ajob com puters costing orders magnitude Anyway thanks Model Aviation contributors Sarpo lus Rand Van Putte Don Burke Stanton CA Judging mail already received about article seems people home computers eager try out modeling uses computer-related articles works Firebolt Revisited Since submitted Firebolt article publication have gotten flight expe rience additional information has come friend Nick Nicholson has flying Firebolt Georgia information may interest MA readers article mentioned aircrafts tendency go nose-high attitude po er cut handled holding Li some down-elevator during landings putting some down-trim transmitter better way tilt engine thrust line up 30 shim ming engine engine mount used molded nylon engine mount thrust plates Ernst Mfg Co After slight re trimming level flight under full power aircraft now remains trim power cut discussed spins article tried until recently Nick reported spun Firebolt several times will recover Hes right have now snapped spun aircraft number times no problem spin con trols neutralized plane continues spin opposite control comes out spin within turn two snaps spins fun Since made twin fins rudders firm -in balsa anchored secure ly Ive no trouble Nick re ports Firebolt has again lost complete fin/rudder assembly flying landed safely dead-stick re maining fm/rudder intact airplane has lot flying time assume vibration possibly some kind aerodynamic loading really tough twin fins urge made firm wood reinforcing built fuselage Possibly thin fiberglass cloth epoxy could used around fin/ fuselage joints strength Dick Sarpolus Shrewsbury NJ SafetylPreston Continued page 14 started running backwards model moved backwards catching fingers prop arc fingers severed first joint possible reason big four-stroke engines backfiring and/or running back wards may because owners following instructions come Continued page 128 34 Channel R/C Systems$3995 Balsa & Ply Construction add $2 pontageiharrdhng Wingspan 35 45 Engines W g Engines GIANT RIC SCALE Marane SAULNIER N Taspan sa Fumala9a1500 Sq AracBeautitit new production kits Old lavo ten Youke DntailMoldd Canopythe rugged ConstruCtion lit die-cut parts Both have * Ragged Pibngia. Moldod Engina cowling piete Kit $27500a history ot ountest wins Easy Build superB light * V Plywood Plwail Hoedwon innindadpis Stddg shroping & handingPlease add $2 poslagelhandling * Formod V dia Landing Gao Lags ey encesSretundedt Rollod PI lnntonionn residents add * Dealer Inquiries Now Invited $4395 GD..m gust 1984125 ATTENTION 1A SCALERS EPOXY GLASS COWLS FOR NOSEN PICA SID MOAGAIK 84L54 USA PLAfl CONCEPT FLEET IIoSTETLEa ACM T-CPAPT SHEBER PITTS Vs & SCALE SUPER CUB POKKEAO-7 BOEING P-12 P26 P402 P404 SPARROW HAWK GEE BEE MOD Y MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELLAS STARDLISTER II Vs SCALE iS-BI BABY PLYBABY AIRCAMPER PILOT JUIVGIAANN 73B SCALE 7/4 SCALE OECATIdALON PIPER PA-tB & OTHERS WHEEL PANTS FOR CITABRIA STARDUS TEA II P/ITS SKYBOLT LIBER7YSPORT CHRISTEN EAGLE P6 E HAWK STEARMAPL S77NSON SR-S MULLIGAN & OTHERS 8RZEO& HEAT-ThEATED WIRE GEARSO CABANES LARGE SCALE PLANS AVAILADLE Send $100 latest list supply Modelers fiberglasa parts plansWrite call us T & D FIBERGLASS SPECIALTIES 30925 BLOCK GARDEN CItY MI 48135 PHONE 313 421-6358 HEAD LOCK NEW STANDARD bmm4~ILA OK fl/ FOR GLOW PLUG CONNECTORS CHECK THESE FEATURES US PAT4 $3952 Push twist its off 3Will favoritecomeeven under heavy hobby dealer eo,ialale w,in dvwct aid 5 SI outside t out S Positive spring contact 6 30 inch lead wire j 45 ENS/NE 4 7Angle Thrust Line Upward Three Degrees it- - I ~I i \ PAD/AL ENGINE MOUNT MI - iI/SF PLY DOUBLERS FROM HERE TO BULKHEAD 5 CONTIOLINI TIllS PROFILE0COMBA 70RA T WIDE & NARROW WEDGE 15 -- 6 oz Capaities UNIFLOW & STIKID Custom uSDA Fuel Ingredients detailed brachufeSOC stamps/check onl CAROLINA-TAFFIN DER 8345 Delhi Road charleston Hgts. SC 29418 803-553-7169 World War isnt Quite Over Yet EINDECKER E-III ILEUZL 861 horn RoadSan Antonio TX 78216 512341-6712 FUTABA 7FGKFM20995 6FGK FMSOLD OUT 7FGK18495 6FGK16495 5FGK15495 6FG15495 4FG14395 4L3-5/2810495 2F2/S-28-R4Hj7495 S-28SERVO1895 S-32SERVO2595 COVERINGS Monokole Opaque 3 Rolls 1695 Monokote Trans. 3 Rolls 1695 Monokote Mel 3 Rolls 2095 CYANOACRYLATE Hot Stuff HS-t e149 Hot Stuff HST-t e149 Hot Stuff HS-4 2 Ounce499 Hot Stuff HST4 2 Ounce499 Hot Shot245 Jet t2 Ounce179 Super Jet e179 Jet 2 Ounce599 Super Jet 2 Ounce599 EPOXY GLUE ISescon 30 Minute 9 Ounce 595 Descon 5 Minute 9 Ounce 595 Hobby pos 118 Ounce 359 Hohbvpos IV 8 Ounce 559 Hobbyposy 1118 Ounce 295 SULLIVAN HT 0600 Starter 2595 HID #601 Starter 2695 HTD-24 #602 Starter 3695 PLEASE NOTE Prices subject change manufacturers prices change items subject axaitahilily time sale Prices effect until nest Model Aslation Issue Show room prices may slightly higher Visit show room white San Antonio 100 foe discount price list refunded first order Shipping & Handling Prepaid orders 5300 COD Credit Curd orders $595 Overseas orders add estimated shipping 25% deposit required first time COD 55% sales las required Texas residents Personal check dela shipping 15 days PRODUCTS FOR THE DISCERNING MODELER Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers copter Ball Mufflers * Specialized Exhaust Systems Unsurpassed Workmnnshin h Pndomanc Check SafetylPreson Continued page 125 engines letter Al Alman well-known writer about big bird happenings discussed four-stroke backfirings Al stated has number letters phone calls subject also stated discussed Scott Fahnestock following say OS engines designed run standard glow fuel problems try ing run too little oil Asec ond reason prop hazard using too much nitro 10% maximum third reason inveterate tweaker runs engines too lean problem compounded because four-stroke tuning quite broad two-stroke-oriented people prone go right past op timum setting lean run means elevated cylinder head temperature leads detonation prop-slinging Als letter also mentioned another hazard associated propellers bottom drawstrings found warm up jackets normally use club jackets Al went state very potential hazard mentioned club meeting whaddayaknow next day got graphic illustration out field other pilot wearing type jackets course drawstrings flapping breeze 60 four-stroke being hard get along sudden kneeling off balance engine startedsucking loose string ends 14-in prop puffing him up against engine What saved him badly cut-up groin lousy idle set ting engine too happy quit idle better throttle some higher setting would have really bad scene~ jacket-drawstring incident reminds similar hazard exists hap pen RC filer uses neckstrap saxophone style support trans mitter Beware unhooked transmitter dangling free around neck may well get tangled prop during starting opera tion last tip month mentioned couple years ago con cerns Dremel belt sanders table saws previously pointed out need clean balsa dust out tools after use prevent possible fire hazard believe instructions also point out need An article February 1984 issue Flypaper newsletter Milwau kee Flying Electrons Russell Knetzger editor has another solution note Russell credits Dave Copernan Cir clemasters Flying Club author following account dont know use Dremel tools unusual occur rence happen using Dremel sander After Ive used couple times clean real good vacuuming inside out including motor time after finished using could smell wood smoldering checked inside sander around belt see spark started something everything looked OK So continued project once could smell smoldering wood decided vacuum out sander try find cause smell What discovered surprised puzzled As said before vacuum motor Im cleaning up time saw glowing embers inside motor already unplugged sander wasnt sure what should didnt want use fire extinguisher didnt want stick anything holes fear damaging motor decided gently blow embers until out kept fire extinguisher handy just case After out removed motor sander check damage opened up motor com pletely cleaned out charred dust couldnt see physical damage motor wires intact insulation harmed thing found phenolic board cou ple black smudges reassembled motor tested itit ran perfectly Evidently vacuum cleaner cant reach dust accumulates back motor arcing brushes starts dust smoldering now wanted something prevent happening again Add ing filter sander housing would prevent dust entering motor So decided put filter motor series holes end motor housing cooling air enter Using 3-M particle mask cut ting proper size taped back motor also have Dremel table saw noticed same smell once after using could never locate problem After removing motor saw same condition found cleaned added filter motor also Now vacuum tools dust outside filter easily cleaned off also noticed crease rpms motors both saw sander have either tools might want check before problem occurs Have safe monthboth off flying field John Preston 12235 Tilden wood Dr Rockville MD 20852 writing advertisers mention read about Model Aviation 128 Model Aviation
Edition: Model Aviation - 1984/08
Page Numbers: 10, 12, 14, 125, 128
ohn Preston Safety Cdmes First Wind can safe ty consideration taxi RC model pit area info engines backfire CREDIT sub ject first topic months Safety column goes Lehigh Valley RC Society newsletter editor Tom Bilheimer Oddly enough read Toms article Prop Wash news letter Detroit Aero Modelers RC club subject wind case wondering affects safety hobby think about crashes occur flying field windy day compared calm day does wind affect flight performance model airplane theory other CL models shouldnt have effect once model airborne Consider foliowing situation used Tom Bilheimer illustrate models flight characteristics dependent its direction relative wind direction full appreciation what wind does does aircraft flight can clarified quite simply mathematical formulae pur pose article will make use aircraft carrier wind blowing 30 mph carrier traveling precisely downwind also 30 mph standing deck ready-to-fly model side air surrounds perfect ly still have accustomed taking off wind now can take off directionthere will no dif ference climb 90 feet level out Because now height has change status quo relating model car rier air mass Noneother fact model now has its own self-generated airflowits airspeed Now some aerobatics normally perform upwind down windbut going today realize cannot model will respond exactly same manner signals regard less its heading five-second slow roll will use up same amount airspace whichever heading fly fly perfect circleat constant rate turn altitude will eventually hit own slipstreameven though wind blowing 30 mph Whatever choose make air craft will its heading make dif ference Obviously Can aircraft have good bad crosswind flying charac teristics Obviously Now imagine transposed flash nearby island Certainly wind now blowing against 30 mph does aircraft realize no longer carrier Will behave differently now cannot see can Im sure will readers will come up some arguments try disprove logic account about wind However try may wind blowing constant speed will impossible disagree models direction relative perceived wind direction observed sta tionary land mass will have effect models flight characteristics 10 Model Aviation newsletter article wind ended few funnies Im sure must have heard uttered unin formed modelers particular wing section tends make aircraft balloon turned wind motor doesnt perform well flying downwind rudder fm area little large bit problem crosswind attempting stall turn wind blew onto its back couldnt pull out dive time because going downwind can add another funny list times have heard someone say Its great performer windy weather because has fantastic penetra tion merely another way say ing model fast penetrates well goes fast upwind will also pene trate just well go faster relative ground going downwind sup pose could also get back Great Downwind Turn Controversy period ically makes its rounds Readers Letters section model magazines However doubt can add anything Continued page 12 4 -Z J- - ONCE WE GtW ER AIR&iE WIND Wc*4T POBLEtA 1 % -LINKS Tried true spring steel kwik links No 109 2-56 Thread No 304 4-40 Thread included Cat No 106 2-56 THD Cat No 306 4-40 THD ic4 NICKLE PLATED STEEL 1/4 SCALE TURN BUCKLES DuBro Turnbuckles look goed theyre fully functional Attached guy wires Itlyng wires add working touch class Cat No 300 SPRING ACTION ____ Locks Kwik Klip onto gIn 1r~ plug continuous positive contact No 150 w/o wires No 151 wfwires KWIK-FILL FUEL PUMPS eaj\ Complete Fueling System includes Cap Fittings Fuel Tubing Filter iI&lIi Hand Operated Pumps Out Fits IIrvaw gallon quart pint size cans No 191 910 Fuel No 250 Gas/diesel ____-m MCKEL SOLDER LINKS Easy solder connectors servo horn Includes 2 links & 2 link guards No 112 Solder Links 2-56 No 305 Solder Links 4-40 Socket Head Bolt BALL WRENCH SET Fits 4-40 6-32 head bolts Leads cap screw head angle 3 blades No 132 4-WAY SOCKET WRENCH Perfect glo plugs prop nuts nylon bolts No 251 516 38 12 KWIK-GLO ICLEARNEOPRENE& Gb Plug ConnectorFUEL TUBING piece brass SUPER BLUE SILICONE barrel snaps Onto plug positive startI 24 long batt lugs No 147 THE FINAL FILTER Only 11/4 long Filters Either Direction ultimate in-line fitter twice much fuel filtering capacity No 162 FT Available off roll packaged 2 lengths TYPE Clear Vinyl Clear Vinyl Clear vinyl Silicone Silicone Silicone Neoprene Neoprene Neoprene SIZE Sm Med Lg Sm Med Lg Sm Med Lg NO 218 219 220 221 222 223 224 225 226 DU-BRO Fuel Tanks come complete tank hardware soft brass tubing positive flow clunk fuel pick-up Available 8 sizes 2 oz 16 oz capacity CAT DESCRIPTION 4022 oz SQUARE FUEL TANK 4044 oz SQUARE FUEL TANK 4066 oz SQUARE FUEL TANK 4086 oz SQUARE FUEL TANK 41010 oz SQUARE FUEL TANK 4121202 SQUARE FUEL TANK 41414 oz SQUARE FUEL TANK 416- 10 02 SQUARE FUEL TANK has already said times before convert unbelievers Models will turn just well going upwind will going down wind dont believe go rent aircraft carrier run own tests guess like complete flight RC pride joy taxiing back through pits parking beside field box laying hand column has previously discouraged such practice article December 1983 issue Update newsletter Santa Barbara RC Modelers illustrates may hazardous Gordon Smith author radios good usually can lull us false sense securi ty BUTwe have seen time plane boat car goes wild usually takes place good way out trans mitter causes damage model incident shows need exercise caution times Labor Day Club Field Day taxiing Tiger Moth park next field box plane stopped next box motor idling Silently congratulating myself realistic per formance moved throttle trim low kill motor Suddenly unexpectedly engine came life full throttle plane lunged forward couple ladies sitting chatting Moth heading leg ladies miracle caused plane swerve left slightly propeller hit against chair leg instead ladys leg Both us bad scare Later shop checked radio fully found nothing could have caused incident Possi bly interference nearby ra dio point isdont taxi pit area plane taking off pits very scary thing takes throt tle glitch similar message about hazard taxiing pit area included Gold Coast Flyer newsletter Gold Coast Radio Controllers edited Art Charlotte Johnson newsletter reported last Board Di rectors meeting discussed recent inci dents some RC receivers can overpowered RF radio frequency transmitter receivers frequency model passes very close offending transmitter does happen receivers problem happens often enough should never take chance taxiing directly towards people cars models pit area sudden surge full throttle model passes transmitter turned pits can cause disaster problem can minimized walking Continued page 14 12 Model Aviation THE TRUSTED NAME IN MODEL PRODUCTS 4 IT CAMANO 100 IT MINI WINDSONG S BOTH.. itis ALL NEW CANANO 100 new ship THE WIN OSONG OF STANDARD CLASS have seen well fl7i Wlndsong know no higher tnbute could paid standard class glider New Camano 100 features Windsongs 214 airlbil sleek innovative strong fiberglass fuselage construction Der Devastator stabflap compensator 80 degree flaps hold speed down near vertical dives eliminating need lbr efficiency robbing spoilers handling perfbrmance would expect 100 inch Windsong NEW CAMANO 100 can flown full function simple three channel radio kit complete deluxe foam core flying surfaces fiberglass fuselage hardware including Der Devastator balsa hand selected 3 times wood parts carefully hand machined new Camano 100 solid core winged multichannel standard class thermal duration competition glider available OFFERS TRUE CLASS STANDARD CLASS FOR THE BEST THERE IS IN ANY CLASS DODGSON DESIGNS WINOSONG CAMANO 100 AND KMINNOW ARE YOUR ONLY CHOICE SEE US AT THE 1984 NATIONALS IN RENO will Peppermill motel OR SOARING FIELD August 5 8 OUR FACTORY Camano Island WILL BE CLOSED AUGUST 3 19 attending Nationals SEND TWO STAMPS COMPLETE CATALOG giving full information Open Class Windsong $19995 new Standard Class Camano 100 $15995 2-Meter KMinnow $14995 PHONE 206 3817412 1 q oaei aviation beside taxiing model shutting down before getting too close point ing towards something someone would care hit couple issues ago reprinted club newsletter article written Orville Mills Oregon modeler about hazard props big four-stroke engines being thrown off engine backfires dur ing starting article drew attention presence two drive pins prop drive washer Enya 90 four-stroke should prevent occurring Shortly after magazine containing article came out received letter Scott Fahnestock World Engines Scott following say new OS FS-90s plus FS-l20s 108 FSRs forthcoming OS en gines over 60 displacement have four pins drive washer hold prop place OS strongiy recommends usage Please pass Orville Mills Safety Comes First MA June 1984 p 14 Scott aiso sent instructions ac company OS FS-90 four-stroke en gine state advisable use electric starter starting although hand-starting also possible structions contained very comprehensive description go about starting engine both electric starter using hand-starting techniques latter method recommended using lightweight wooden propellers owners instructed 'be sure wear heavy glove use chicken stick Staying subject safety starting tuning engines continue urge readers move location behind prop arc before making fuel mix ture adjustments August 1983 issue Windy City newsletter Al Brose wrote Just recently RC flier makes good practice adjust necdie valve behind engine 3-in plastic spinner shatter warn ing spinner broke apart also caused prop break spinner broke about 10 pieces flew far 50 feet away flier sure giad wasnt front plane happened However case think station ing yourself behind prop arc puts personage totally out harms way consider what editor Loin Baczkowski say Sundown Gazette newsletter Midwest Sundowners RC Club 'A back bought model Suburban Aeroclub Chicagos annual auction man bought model well-experienced hobby As got talking noticed - two middle fingers left hand somewhat shorter normal lit tle shocked shaken find out happened adjusting idle twin engine misfired Continued page 125 Megan Uodgson new Camano 100 MODEL PRODUCTS CORR BOX 314 Ponipton Plains NJ07444 Letters Editor Continued page 8 designs Ive thought useful along modification routine case first guess too far off base also print out hard copy whenever Im reasonably satis fied what see screen what want am no stretch imagination accomplished programmer Therefore software design professionally per fect does job think interesting thing about articles like yours mentioned text simple program can run some very inexpensive computers such Sinclair wili just good ajob com puters costing orders magnitude Anyway thanks Model Aviation contributors Sarpo lus Rand Van Putte Don Burke Stanton CA Judging mail already received about article seems people home computers eager try out modeling uses computer-related articles works Firebolt Revisited Since submitted Firebolt article publication have gotten flight expe rience additional information has come friend Nick Nicholson has flying Firebolt Georgia information may interest MA readers article mentioned aircrafts tendency go nose-high attitude po er cut handled holding Li some down-elevator during landings putting some down-trim transmitter better way tilt engine thrust line up 30 shim ming engine engine mount used molded nylon engine mount thrust plates Ernst Mfg Co After slight re trimming level flight under full power aircraft now remains trim power cut discussed spins article tried until recently Nick reported spun Firebolt several times will recover Hes right have now snapped spun aircraft number times no problem spin con trols neutralized plane continues spin opposite control comes out spin within turn two snaps spins fun Since made twin fins rudders firm -in balsa anchored secure ly Ive no trouble Nick re ports Firebolt has again lost complete fin/rudder assembly flying landed safely dead-stick re maining fm/rudder intact airplane has lot flying time assume vibration possibly some kind aerodynamic loading really tough twin fins urge made firm wood reinforcing built fuselage Possibly thin fiberglass cloth epoxy could used around fin/ fuselage joints strength Dick Sarpolus Shrewsbury NJ SafetylPreston Continued page 14 started running backwards model moved backwards catching fingers prop arc fingers severed first joint possible reason big four-stroke engines backfiring and/or running back wards may because owners following instructions come Continued page 128 34 Channel R/C Systems$3995 Balsa & Ply Construction add $2 pontageiharrdhng Wingspan 35 45 Engines W g Engines GIANT RIC SCALE Marane SAULNIER N Taspan sa Fumala9a1500 Sq AracBeautitit new production kits Old lavo ten Youke DntailMoldd Canopythe rugged ConstruCtion lit die-cut parts Both have * Ragged Pibngia. Moldod Engina cowling piete Kit $27500a history ot ountest wins Easy Build superB light * V Plywood Plwail Hoedwon innindadpis Stddg shroping & handingPlease add $2 poslagelhandling * Formod V dia Landing Gao Lags ey encesSretundedt Rollod PI lnntonionn residents add * Dealer Inquiries Now Invited $4395 GD..m gust 1984125 ATTENTION 1A SCALERS EPOXY GLASS COWLS FOR NOSEN PICA SID MOAGAIK 84L54 USA PLAfl CONCEPT FLEET IIoSTETLEa ACM T-CPAPT SHEBER PITTS Vs & SCALE SUPER CUB POKKEAO-7 BOEING P-12 P26 P402 P404 SPARROW HAWK GEE BEE MOD Y MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELLAS STARDLISTER II Vs SCALE iS-BI BABY PLYBABY AIRCAMPER PILOT JUIVGIAANN 73B SCALE 7/4 SCALE OECATIdALON PIPER PA-tB & OTHERS WHEEL PANTS FOR CITABRIA STARDUS TEA II P/ITS SKYBOLT LIBER7YSPORT CHRISTEN EAGLE P6 E HAWK STEARMAPL S77NSON SR-S MULLIGAN & OTHERS 8RZEO& HEAT-ThEATED WIRE GEARSO CABANES LARGE SCALE PLANS AVAILADLE Send $100 latest list supply Modelers fiberglasa parts plansWrite call us T & D FIBERGLASS SPECIALTIES 30925 BLOCK GARDEN CItY MI 48135 PHONE 313 421-6358 HEAD LOCK NEW STANDARD bmm4~ILA OK fl/ FOR GLOW PLUG CONNECTORS CHECK THESE FEATURES US PAT4 $3952 Push twist its off 3Will favoritecomeeven under heavy hobby dealer eo,ialale w,in dvwct aid 5 SI outside t out S Positive spring contact 6 30 inch lead wire j 45 ENS/NE 4 7Angle Thrust Line Upward Three Degrees it- - I ~I i \ PAD/AL ENGINE MOUNT MI - iI/SF PLY DOUBLERS FROM HERE TO BULKHEAD 5 CONTIOLINI TIllS PROFILE0COMBA 70RA T WIDE & NARROW WEDGE 15 -- 6 oz Capaities UNIFLOW & STIKID Custom uSDA Fuel Ingredients detailed brachufeSOC stamps/check onl CAROLINA-TAFFIN DER 8345 Delhi Road charleston Hgts. SC 29418 803-553-7169 World War isnt Quite Over Yet EINDECKER E-III ILEUZL 861 horn RoadSan Antonio TX 78216 512341-6712 FUTABA 7FGKFM20995 6FGK FMSOLD OUT 7FGK18495 6FGK16495 5FGK15495 6FG15495 4FG14395 4L3-5/2810495 2F2/S-28-R4Hj7495 S-28SERVO1895 S-32SERVO2595 COVERINGS Monokole Opaque 3 Rolls 1695 Monokote Trans. 3 Rolls 1695 Monokote Mel 3 Rolls 2095 CYANOACRYLATE Hot Stuff HS-t e149 Hot Stuff HST-t e149 Hot Stuff HS-4 2 Ounce499 Hot Stuff HST4 2 Ounce499 Hot Shot245 Jet t2 Ounce179 Super Jet e179 Jet 2 Ounce599 Super Jet 2 Ounce599 EPOXY GLUE ISescon 30 Minute 9 Ounce 595 Descon 5 Minute 9 Ounce 595 Hobby pos 118 Ounce 359 Hohbvpos IV 8 Ounce 559 Hobbyposy 1118 Ounce 295 SULLIVAN HT 0600 Starter 2595 HID #601 Starter 2695 HTD-24 #602 Starter 3695 PLEASE NOTE Prices subject change manufacturers prices change items subject axaitahilily time sale Prices effect until nest Model Aslation Issue Show room prices may slightly higher Visit show room white San Antonio 100 foe discount price list refunded first order Shipping & Handling Prepaid orders 5300 COD Credit Curd orders $595 Overseas orders add estimated shipping 25% deposit required first time COD 55% sales las required Texas residents Personal check dela shipping 15 days PRODUCTS FOR THE DISCERNING MODELER Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers copter Ball Mufflers * Specialized Exhaust Systems Unsurpassed Workmnnshin h Pndomanc Check SafetylPreson Continued page 125 engines letter Al Alman well-known writer about big bird happenings discussed four-stroke backfirings Al stated has number letters phone calls subject also stated discussed Scott Fahnestock following say OS engines designed run standard glow fuel problems try ing run too little oil Asec ond reason prop hazard using too much nitro 10% maximum third reason inveterate tweaker runs engines too lean problem compounded because four-stroke tuning quite broad two-stroke-oriented people prone go right past op timum setting lean run means elevated cylinder head temperature leads detonation prop-slinging Als letter also mentioned another hazard associated propellers bottom drawstrings found warm up jackets normally use club jackets Al went state very potential hazard mentioned club meeting whaddayaknow next day got graphic illustration out field other pilot wearing type jackets course drawstrings flapping breeze 60 four-stroke being hard get along sudden kneeling off balance engine startedsucking loose string ends 14-in prop puffing him up against engine What saved him badly cut-up groin lousy idle set ting engine too happy quit idle better throttle some higher setting would have really bad scene~ jacket-drawstring incident reminds similar hazard exists hap pen RC filer uses neckstrap saxophone style support trans mitter Beware unhooked transmitter dangling free around neck may well get tangled prop during starting opera tion last tip month mentioned couple years ago con cerns Dremel belt sanders table saws previously pointed out need clean balsa dust out tools after use prevent possible fire hazard believe instructions also point out need An article February 1984 issue Flypaper newsletter Milwau kee Flying Electrons Russell Knetzger editor has another solution note Russell credits Dave Copernan Cir clemasters Flying Club author following account dont know use Dremel tools unusual occur rence happen using Dremel sander After Ive used couple times clean real good vacuuming inside out including motor time after finished using could smell wood smoldering checked inside sander around belt see spark started something everything looked OK So continued project once could smell smoldering wood decided vacuum out sander try find cause smell What discovered surprised puzzled As said before vacuum motor Im cleaning up time saw glowing embers inside motor already unplugged sander wasnt sure what should didnt want use fire extinguisher didnt want stick anything holes fear damaging motor decided gently blow embers until out kept fire extinguisher handy just case After out removed motor sander check damage opened up motor com pletely cleaned out charred dust couldnt see physical damage motor wires intact insulation harmed thing found phenolic board cou ple black smudges reassembled motor tested itit ran perfectly Evidently vacuum cleaner cant reach dust accumulates back motor arcing brushes starts dust smoldering now wanted something prevent happening again Add ing filter sander housing would prevent dust entering motor So decided put filter motor series holes end motor housing cooling air enter Using 3-M particle mask cut ting proper size taped back motor also have Dremel table saw noticed same smell once after using could never locate problem After removing motor saw same condition found cleaned added filter motor also Now vacuum tools dust outside filter easily cleaned off also noticed crease rpms motors both saw sander have either tools might want check before problem occurs Have safe monthboth off flying field John Preston 12235 Tilden wood Dr Rockville MD 20852 writing advertisers mention read about Model Aviation 128 Model Aviation
Edition: Model Aviation - 1984/08
Page Numbers: 10, 12, 14, 125, 128
ohn Preston Safety Cdmes First Wind can safe ty consideration taxi RC model pit area info engines backfire CREDIT sub ject first topic months Safety column goes Lehigh Valley RC Society newsletter editor Tom Bilheimer Oddly enough read Toms article Prop Wash news letter Detroit Aero Modelers RC club subject wind case wondering affects safety hobby think about crashes occur flying field windy day compared calm day does wind affect flight performance model airplane theory other CL models shouldnt have effect once model airborne Consider foliowing situation used Tom Bilheimer illustrate models flight characteristics dependent its direction relative wind direction full appreciation what wind does does aircraft flight can clarified quite simply mathematical formulae pur pose article will make use aircraft carrier wind blowing 30 mph carrier traveling precisely downwind also 30 mph standing deck ready-to-fly model side air surrounds perfect ly still have accustomed taking off wind now can take off directionthere will no dif ference climb 90 feet level out Because now height has change status quo relating model car rier air mass Noneother fact model now has its own self-generated airflowits airspeed Now some aerobatics normally perform upwind down windbut going today realize cannot model will respond exactly same manner signals regard less its heading five-second slow roll will use up same amount airspace whichever heading fly fly perfect circleat constant rate turn altitude will eventually hit own slipstreameven though wind blowing 30 mph Whatever choose make air craft will its heading make dif ference Obviously Can aircraft have good bad crosswind flying charac teristics Obviously Now imagine transposed flash nearby island Certainly wind now blowing against 30 mph does aircraft realize no longer carrier Will behave differently now cannot see can Im sure will readers will come up some arguments try disprove logic account about wind However try may wind blowing constant speed will impossible disagree models direction relative perceived wind direction observed sta tionary land mass will have effect models flight characteristics 10 Model Aviation newsletter article wind ended few funnies Im sure must have heard uttered unin formed modelers particular wing section tends make aircraft balloon turned wind motor doesnt perform well flying downwind rudder fm area little large bit problem crosswind attempting stall turn wind blew onto its back couldnt pull out dive time because going downwind can add another funny list times have heard someone say Its great performer windy weather because has fantastic penetra tion merely another way say ing model fast penetrates well goes fast upwind will also pene trate just well go faster relative ground going downwind sup pose could also get back Great Downwind Turn Controversy period ically makes its rounds Readers Letters section model magazines However doubt can add anything Continued page 12 4 -Z J- - ONCE WE GtW ER AIR&iE WIND Wc*4T POBLEtA 1 % -LINKS Tried true spring steel kwik links No 109 2-56 Thread No 304 4-40 Thread included Cat No 106 2-56 THD Cat No 306 4-40 THD ic4 NICKLE PLATED STEEL 1/4 SCALE TURN BUCKLES DuBro Turnbuckles look goed theyre fully functional Attached guy wires Itlyng wires add working touch class Cat No 300 SPRING ACTION ____ Locks Kwik Klip onto gIn 1r~ plug continuous positive contact No 150 w/o wires No 151 wfwires KWIK-FILL FUEL PUMPS eaj\ Complete Fueling System includes Cap Fittings Fuel Tubing Filter iI&lIi Hand Operated Pumps Out Fits IIrvaw gallon quart pint size cans No 191 910 Fuel No 250 Gas/diesel ____-m MCKEL SOLDER LINKS Easy solder connectors servo horn Includes 2 links & 2 link guards No 112 Solder Links 2-56 No 305 Solder Links 4-40 Socket Head Bolt BALL WRENCH SET Fits 4-40 6-32 head bolts Leads cap screw head angle 3 blades No 132 4-WAY SOCKET WRENCH Perfect glo plugs prop nuts nylon bolts No 251 516 38 12 KWIK-GLO ICLEARNEOPRENE& Gb Plug ConnectorFUEL TUBING piece brass SUPER BLUE SILICONE barrel snaps Onto plug positive startI 24 long batt lugs No 147 THE FINAL FILTER Only 11/4 long Filters Either Direction ultimate in-line fitter twice much fuel filtering capacity No 162 FT Available off roll packaged 2 lengths TYPE Clear Vinyl Clear Vinyl Clear vinyl Silicone Silicone Silicone Neoprene Neoprene Neoprene SIZE Sm Med Lg Sm Med Lg Sm Med Lg NO 218 219 220 221 222 223 224 225 226 DU-BRO Fuel Tanks come complete tank hardware soft brass tubing positive flow clunk fuel pick-up Available 8 sizes 2 oz 16 oz capacity CAT DESCRIPTION 4022 oz SQUARE FUEL TANK 4044 oz SQUARE FUEL TANK 4066 oz SQUARE FUEL TANK 4086 oz SQUARE FUEL TANK 41010 oz SQUARE FUEL TANK 4121202 SQUARE FUEL TANK 41414 oz SQUARE FUEL TANK 416- 10 02 SQUARE FUEL TANK has already said times before convert unbelievers Models will turn just well going upwind will going down wind dont believe go rent aircraft carrier run own tests guess like complete flight RC pride joy taxiing back through pits parking beside field box laying hand column has previously discouraged such practice article December 1983 issue Update newsletter Santa Barbara RC Modelers illustrates may hazardous Gordon Smith author radios good usually can lull us false sense securi ty BUTwe have seen time plane boat car goes wild usually takes place good way out trans mitter causes damage model incident shows need exercise caution times Labor Day Club Field Day taxiing Tiger Moth park next field box plane stopped next box motor idling Silently congratulating myself realistic per formance moved throttle trim low kill motor Suddenly unexpectedly engine came life full throttle plane lunged forward couple ladies sitting chatting Moth heading leg ladies miracle caused plane swerve left slightly propeller hit against chair leg instead ladys leg Both us bad scare Later shop checked radio fully found nothing could have caused incident Possi bly interference nearby ra dio point isdont taxi pit area plane taking off pits very scary thing takes throt tle glitch similar message about hazard taxiing pit area included Gold Coast Flyer newsletter Gold Coast Radio Controllers edited Art Charlotte Johnson newsletter reported last Board Di rectors meeting discussed recent inci dents some RC receivers can overpowered RF radio frequency transmitter receivers frequency model passes very close offending transmitter does happen receivers problem happens often enough should never take chance taxiing directly towards people cars models pit area sudden surge full throttle model passes transmitter turned pits can cause disaster problem can minimized walking Continued page 14 12 Model Aviation THE TRUSTED NAME IN MODEL PRODUCTS 4 IT CAMANO 100 IT MINI WINDSONG S BOTH.. itis ALL NEW CANANO 100 new ship THE WIN OSONG OF STANDARD CLASS have seen well fl7i Wlndsong know no higher tnbute could paid standard class glider New Camano 100 features Windsongs 214 airlbil sleek innovative strong fiberglass fuselage construction Der Devastator stabflap compensator 80 degree flaps hold speed down near vertical dives eliminating need lbr efficiency robbing spoilers handling perfbrmance would expect 100 inch Windsong NEW CAMANO 100 can flown full function simple three channel radio kit complete deluxe foam core flying surfaces fiberglass fuselage hardware including Der Devastator balsa hand selected 3 times wood parts carefully hand machined new Camano 100 solid core winged multichannel standard class thermal duration competition glider available OFFERS TRUE CLASS STANDARD CLASS FOR THE BEST THERE IS IN ANY CLASS DODGSON DESIGNS WINOSONG CAMANO 100 AND KMINNOW ARE YOUR ONLY CHOICE SEE US AT THE 1984 NATIONALS IN RENO will Peppermill motel OR SOARING FIELD August 5 8 OUR FACTORY Camano Island WILL BE CLOSED AUGUST 3 19 attending Nationals SEND TWO STAMPS COMPLETE CATALOG giving full information Open Class Windsong $19995 new Standard Class Camano 100 $15995 2-Meter KMinnow $14995 PHONE 206 3817412 1 q oaei aviation beside taxiing model shutting down before getting too close point ing towards something someone would care hit couple issues ago reprinted club newsletter article written Orville Mills Oregon modeler about hazard props big four-stroke engines being thrown off engine backfires dur ing starting article drew attention presence two drive pins prop drive washer Enya 90 four-stroke should prevent occurring Shortly after magazine containing article came out received letter Scott Fahnestock World Engines Scott following say new OS FS-90s plus FS-l20s 108 FSRs forthcoming OS en gines over 60 displacement have four pins drive washer hold prop place OS strongiy recommends usage Please pass Orville Mills Safety Comes First MA June 1984 p 14 Scott aiso sent instructions ac company OS FS-90 four-stroke en gine state advisable use electric starter starting although hand-starting also possible structions contained very comprehensive description go about starting engine both electric starter using hand-starting techniques latter method recommended using lightweight wooden propellers owners instructed 'be sure wear heavy glove use chicken stick Staying subject safety starting tuning engines continue urge readers move location behind prop arc before making fuel mix ture adjustments August 1983 issue Windy City newsletter Al Brose wrote Just recently RC flier makes good practice adjust necdie valve behind engine 3-in plastic spinner shatter warn ing spinner broke apart also caused prop break spinner broke about 10 pieces flew far 50 feet away flier sure giad wasnt front plane happened However case think station ing yourself behind prop arc puts personage totally out harms way consider what editor Loin Baczkowski say Sundown Gazette newsletter Midwest Sundowners RC Club 'A back bought model Suburban Aeroclub Chicagos annual auction man bought model well-experienced hobby As got talking noticed - two middle fingers left hand somewhat shorter normal lit tle shocked shaken find out happened adjusting idle twin engine misfired Continued page 125 Megan Uodgson new Camano 100 MODEL PRODUCTS CORR BOX 314 Ponipton Plains NJ07444 Letters Editor Continued page 8 designs Ive thought useful along modification routine case first guess too far off base also print out hard copy whenever Im reasonably satis fied what see screen what want am no stretch imagination accomplished programmer Therefore software design professionally per fect does job think interesting thing about articles like yours mentioned text simple program can run some very inexpensive computers such Sinclair wili just good ajob com puters costing orders magnitude Anyway thanks Model Aviation contributors Sarpo lus Rand Van Putte Don Burke Stanton CA Judging mail already received about article seems people home computers eager try out modeling uses computer-related articles works Firebolt Revisited Since submitted Firebolt article publication have gotten flight expe rience additional information has come friend Nick Nicholson has flying Firebolt Georgia information may interest MA readers article mentioned aircrafts tendency go nose-high attitude po er cut handled holding Li some down-elevator during landings putting some down-trim transmitter better way tilt engine thrust line up 30 shim ming engine engine mount used molded nylon engine mount thrust plates Ernst Mfg Co After slight re trimming level flight under full power aircraft now remains trim power cut discussed spins article tried until recently Nick reported spun Firebolt several times will recover Hes right have now snapped spun aircraft number times no problem spin con trols neutralized plane continues spin opposite control comes out spin within turn two snaps spins fun Since made twin fins rudders firm -in balsa anchored secure ly Ive no trouble Nick re ports Firebolt has again lost complete fin/rudder assembly flying landed safely dead-stick re maining fm/rudder intact airplane has lot flying time assume vibration possibly some kind aerodynamic loading really tough twin fins urge made firm wood reinforcing built fuselage Possibly thin fiberglass cloth epoxy could used around fin/ fuselage joints strength Dick Sarpolus Shrewsbury NJ SafetylPreston Continued page 14 started running backwards model moved backwards catching fingers prop arc fingers severed first joint possible reason big four-stroke engines backfiring and/or running back wards may because owners following instructions come Continued page 128 34 Channel R/C Systems$3995 Balsa & Ply Construction add $2 pontageiharrdhng Wingspan 35 45 Engines W g Engines GIANT RIC SCALE Marane SAULNIER N Taspan sa Fumala9a1500 Sq AracBeautitit new production kits Old lavo ten Youke DntailMoldd Canopythe rugged ConstruCtion lit die-cut parts Both have * Ragged Pibngia. Moldod Engina cowling piete Kit $27500a history ot ountest wins Easy Build superB light * V Plywood Plwail Hoedwon innindadpis Stddg shroping & handingPlease add $2 poslagelhandling * Formod V dia Landing Gao Lags ey encesSretundedt Rollod PI lnntonionn residents add * Dealer Inquiries Now Invited $4395 GD..m gust 1984125 ATTENTION 1A SCALERS EPOXY GLASS COWLS FOR NOSEN PICA SID MOAGAIK 84L54 USA PLAfl CONCEPT FLEET IIoSTETLEa ACM T-CPAPT SHEBER PITTS Vs & SCALE SUPER CUB POKKEAO-7 BOEING P-12 P26 P402 P404 SPARROW HAWK GEE BEE MOD Y MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELLAS STARDLISTER II Vs SCALE iS-BI BABY PLYBABY AIRCAMPER PILOT JUIVGIAANN 73B SCALE 7/4 SCALE OECATIdALON PIPER PA-tB & OTHERS WHEEL PANTS FOR CITABRIA STARDUS TEA II P/ITS SKYBOLT LIBER7YSPORT CHRISTEN EAGLE P6 E HAWK STEARMAPL S77NSON SR-S MULLIGAN & OTHERS 8RZEO& HEAT-ThEATED WIRE GEARSO CABANES LARGE SCALE PLANS AVAILADLE Send $100 latest list supply Modelers fiberglasa parts plansWrite call us T & D FIBERGLASS SPECIALTIES 30925 BLOCK GARDEN CItY MI 48135 PHONE 313 421-6358 HEAD LOCK NEW STANDARD bmm4~ILA OK fl/ FOR GLOW PLUG CONNECTORS CHECK THESE FEATURES US PAT4 $3952 Push twist its off 3Will favoritecomeeven under heavy hobby dealer eo,ialale w,in dvwct aid 5 SI outside t out S Positive spring contact 6 30 inch lead wire j 45 ENS/NE 4 7Angle Thrust Line Upward Three Degrees it- - I ~I i \ PAD/AL ENGINE MOUNT MI - iI/SF PLY DOUBLERS FROM HERE TO BULKHEAD 5 CONTIOLINI TIllS PROFILE0COMBA 70RA T WIDE & NARROW WEDGE 15 -- 6 oz Capaities UNIFLOW & STIKID Custom uSDA Fuel Ingredients detailed brachufeSOC stamps/check onl CAROLINA-TAFFIN DER 8345 Delhi Road charleston Hgts. SC 29418 803-553-7169 World War isnt Quite Over Yet EINDECKER E-III ILEUZL 861 horn RoadSan Antonio TX 78216 512341-6712 FUTABA 7FGKFM20995 6FGK FMSOLD OUT 7FGK18495 6FGK16495 5FGK15495 6FG15495 4FG14395 4L3-5/2810495 2F2/S-28-R4Hj7495 S-28SERVO1895 S-32SERVO2595 COVERINGS Monokole Opaque 3 Rolls 1695 Monokote Trans. 3 Rolls 1695 Monokote Mel 3 Rolls 2095 CYANOACRYLATE Hot Stuff HS-t e149 Hot Stuff HST-t e149 Hot Stuff HS-4 2 Ounce499 Hot Stuff HST4 2 Ounce499 Hot Shot245 Jet t2 Ounce179 Super Jet e179 Jet 2 Ounce599 Super Jet 2 Ounce599 EPOXY GLUE ISescon 30 Minute 9 Ounce 595 Descon 5 Minute 9 Ounce 595 Hobby pos 118 Ounce 359 Hohbvpos IV 8 Ounce 559 Hobbyposy 1118 Ounce 295 SULLIVAN HT 0600 Starter 2595 HID #601 Starter 2695 HTD-24 #602 Starter 3695 PLEASE NOTE Prices subject change manufacturers prices change items subject axaitahilily time sale Prices effect until nest Model Aslation Issue Show room prices may slightly higher Visit show room white San Antonio 100 foe discount price list refunded first order Shipping & Handling Prepaid orders 5300 COD Credit Curd orders $595 Overseas orders add estimated shipping 25% deposit required first time COD 55% sales las required Texas residents Personal check dela shipping 15 days PRODUCTS FOR THE DISCERNING MODELER Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers copter Ball Mufflers * Specialized Exhaust Systems Unsurpassed Workmnnshin h Pndomanc Check SafetylPreson Continued page 125 engines letter Al Alman well-known writer about big bird happenings discussed four-stroke backfirings Al stated has number letters phone calls subject also stated discussed Scott Fahnestock following say OS engines designed run standard glow fuel problems try ing run too little oil Asec ond reason prop hazard using too much nitro 10% maximum third reason inveterate tweaker runs engines too lean problem compounded because four-stroke tuning quite broad two-stroke-oriented people prone go right past op timum setting lean run means elevated cylinder head temperature leads detonation prop-slinging Als letter also mentioned another hazard associated propellers bottom drawstrings found warm up jackets normally use club jackets Al went state very potential hazard mentioned club meeting whaddayaknow next day got graphic illustration out field other pilot wearing type jackets course drawstrings flapping breeze 60 four-stroke being hard get along sudden kneeling off balance engine startedsucking loose string ends 14-in prop puffing him up against engine What saved him badly cut-up groin lousy idle set ting engine too happy quit idle better throttle some higher setting would have really bad scene~ jacket-drawstring incident reminds similar hazard exists hap pen RC filer uses neckstrap saxophone style support trans mitter Beware unhooked transmitter dangling free around neck may well get tangled prop during starting opera tion last tip month mentioned couple years ago con cerns Dremel belt sanders table saws previously pointed out need clean balsa dust out tools after use prevent possible fire hazard believe instructions also point out need An article February 1984 issue Flypaper newsletter Milwau kee Flying Electrons Russell Knetzger editor has another solution note Russell credits Dave Copernan Cir clemasters Flying Club author following account dont know use Dremel tools unusual occur rence happen using Dremel sander After Ive used couple times clean real good vacuuming inside out including motor time after finished using could smell wood smoldering checked inside sander around belt see spark started something everything looked OK So continued project once could smell smoldering wood decided vacuum out sander try find cause smell What discovered surprised puzzled As said before vacuum motor Im cleaning up time saw glowing embers inside motor already unplugged sander wasnt sure what should didnt want use fire extinguisher didnt want stick anything holes fear damaging motor decided gently blow embers until out kept fire extinguisher handy just case After out removed motor sander check damage opened up motor com pletely cleaned out charred dust couldnt see physical damage motor wires intact insulation harmed thing found phenolic board cou ple black smudges reassembled motor tested itit ran perfectly Evidently vacuum cleaner cant reach dust accumulates back motor arcing brushes starts dust smoldering now wanted something prevent happening again Add ing filter sander housing would prevent dust entering motor So decided put filter motor series holes end motor housing cooling air enter Using 3-M particle mask cut ting proper size taped back motor also have Dremel table saw noticed same smell once after using could never locate problem After removing motor saw same condition found cleaned added filter motor also Now vacuum tools dust outside filter easily cleaned off also noticed crease rpms motors both saw sander have either tools might want check before problem occurs Have safe monthboth off flying field John Preston 12235 Tilden wood Dr Rockville MD 20852 writing advertisers mention read about Model Aviation 128 Model Aviation
Edition: Model Aviation - 1984/08
Page Numbers: 10, 12, 14, 125, 128
ohn Preston Safety Cdmes First Wind can safe ty consideration taxi RC model pit area info engines backfire CREDIT sub ject first topic months Safety column goes Lehigh Valley RC Society newsletter editor Tom Bilheimer Oddly enough read Toms article Prop Wash news letter Detroit Aero Modelers RC club subject wind case wondering affects safety hobby think about crashes occur flying field windy day compared calm day does wind affect flight performance model airplane theory other CL models shouldnt have effect once model airborne Consider foliowing situation used Tom Bilheimer illustrate models flight characteristics dependent its direction relative wind direction full appreciation what wind does does aircraft flight can clarified quite simply mathematical formulae pur pose article will make use aircraft carrier wind blowing 30 mph carrier traveling precisely downwind also 30 mph standing deck ready-to-fly model side air surrounds perfect ly still have accustomed taking off wind now can take off directionthere will no dif ference climb 90 feet level out Because now height has change status quo relating model car rier air mass Noneother fact model now has its own self-generated airflowits airspeed Now some aerobatics normally perform upwind down windbut going today realize cannot model will respond exactly same manner signals regard less its heading five-second slow roll will use up same amount airspace whichever heading fly fly perfect circleat constant rate turn altitude will eventually hit own slipstreameven though wind blowing 30 mph Whatever choose make air craft will its heading make dif ference Obviously Can aircraft have good bad crosswind flying charac teristics Obviously Now imagine transposed flash nearby island Certainly wind now blowing against 30 mph does aircraft realize no longer carrier Will behave differently now cannot see can Im sure will readers will come up some arguments try disprove logic account about wind However try may wind blowing constant speed will impossible disagree models direction relative perceived wind direction observed sta tionary land mass will have effect models flight characteristics 10 Model Aviation newsletter article wind ended few funnies Im sure must have heard uttered unin formed modelers particular wing section tends make aircraft balloon turned wind motor doesnt perform well flying downwind rudder fm area little large bit problem crosswind attempting stall turn wind blew onto its back couldnt pull out dive time because going downwind can add another funny list times have heard someone say Its great performer windy weather because has fantastic penetra tion merely another way say ing model fast penetrates well goes fast upwind will also pene trate just well go faster relative ground going downwind sup pose could also get back Great Downwind Turn Controversy period ically makes its rounds Readers Letters section model magazines However doubt can add anything Continued page 12 4 -Z J- - ONCE WE GtW ER AIR&iE WIND Wc*4T POBLEtA 1 % -LINKS Tried true spring steel kwik links No 109 2-56 Thread No 304 4-40 Thread included Cat No 106 2-56 THD Cat No 306 4-40 THD ic4 NICKLE PLATED STEEL 1/4 SCALE TURN BUCKLES DuBro Turnbuckles look goed theyre fully functional Attached guy wires Itlyng wires add working touch class Cat No 300 SPRING ACTION ____ Locks Kwik Klip onto gIn 1r~ plug continuous positive contact No 150 w/o wires No 151 wfwires KWIK-FILL FUEL PUMPS eaj\ Complete Fueling System includes Cap Fittings Fuel Tubing Filter iI&lIi Hand Operated Pumps Out Fits IIrvaw gallon quart pint size cans No 191 910 Fuel No 250 Gas/diesel ____-m MCKEL SOLDER LINKS Easy solder connectors servo horn Includes 2 links & 2 link guards No 112 Solder Links 2-56 No 305 Solder Links 4-40 Socket Head Bolt BALL WRENCH SET Fits 4-40 6-32 head bolts Leads cap screw head angle 3 blades No 132 4-WAY SOCKET WRENCH Perfect glo plugs prop nuts nylon bolts No 251 516 38 12 KWIK-GLO ICLEARNEOPRENE& Gb Plug ConnectorFUEL TUBING piece brass SUPER BLUE SILICONE barrel snaps Onto plug positive startI 24 long batt lugs No 147 THE FINAL FILTER Only 11/4 long Filters Either Direction ultimate in-line fitter twice much fuel filtering capacity No 162 FT Available off roll packaged 2 lengths TYPE Clear Vinyl Clear Vinyl Clear vinyl Silicone Silicone Silicone Neoprene Neoprene Neoprene SIZE Sm Med Lg Sm Med Lg Sm Med Lg NO 218 219 220 221 222 223 224 225 226 DU-BRO Fuel Tanks come complete tank hardware soft brass tubing positive flow clunk fuel pick-up Available 8 sizes 2 oz 16 oz capacity CAT DESCRIPTION 4022 oz SQUARE FUEL TANK 4044 oz SQUARE FUEL TANK 4066 oz SQUARE FUEL TANK 4086 oz SQUARE FUEL TANK 41010 oz SQUARE FUEL TANK 4121202 SQUARE FUEL TANK 41414 oz SQUARE FUEL TANK 416- 10 02 SQUARE FUEL TANK has already said times before convert unbelievers Models will turn just well going upwind will going down wind dont believe go rent aircraft carrier run own tests guess like complete flight RC pride joy taxiing back through pits parking beside field box laying hand column has previously discouraged such practice article December 1983 issue Update newsletter Santa Barbara RC Modelers illustrates may hazardous Gordon Smith author radios good usually can lull us false sense securi ty BUTwe have seen time plane boat car goes wild usually takes place good way out trans mitter causes damage model incident shows need exercise caution times Labor Day Club Field Day taxiing Tiger Moth park next field box plane stopped next box motor idling Silently congratulating myself realistic per formance moved throttle trim low kill motor Suddenly unexpectedly engine came life full throttle plane lunged forward couple ladies sitting chatting Moth heading leg ladies miracle caused plane swerve left slightly propeller hit against chair leg instead ladys leg Both us bad scare Later shop checked radio fully found nothing could have caused incident Possi bly interference nearby ra dio point isdont taxi pit area plane taking off pits very scary thing takes throt tle glitch similar message about hazard taxiing pit area included Gold Coast Flyer newsletter Gold Coast Radio Controllers edited Art Charlotte Johnson newsletter reported last Board Di rectors meeting discussed recent inci dents some RC receivers can overpowered RF radio frequency transmitter receivers frequency model passes very close offending transmitter does happen receivers problem happens often enough should never take chance taxiing directly towards people cars models pit area sudden surge full throttle model passes transmitter turned pits can cause disaster problem can minimized walking Continued page 14 12 Model Aviation THE TRUSTED NAME IN MODEL PRODUCTS 4 IT CAMANO 100 IT MINI WINDSONG S BOTH.. itis ALL NEW CANANO 100 new ship THE WIN OSONG OF STANDARD CLASS have seen well fl7i Wlndsong know no higher tnbute could paid standard class glider New Camano 100 features Windsongs 214 airlbil sleek innovative strong fiberglass fuselage construction Der Devastator stabflap compensator 80 degree flaps hold speed down near vertical dives eliminating need lbr efficiency robbing spoilers handling perfbrmance would expect 100 inch Windsong NEW CAMANO 100 can flown full function simple three channel radio kit complete deluxe foam core flying surfaces fiberglass fuselage hardware including Der Devastator balsa hand selected 3 times wood parts carefully hand machined new Camano 100 solid core winged multichannel standard class thermal duration competition glider available OFFERS TRUE CLASS STANDARD CLASS FOR THE BEST THERE IS IN ANY CLASS DODGSON DESIGNS WINOSONG CAMANO 100 AND KMINNOW ARE YOUR ONLY CHOICE SEE US AT THE 1984 NATIONALS IN RENO will Peppermill motel OR SOARING FIELD August 5 8 OUR FACTORY Camano Island WILL BE CLOSED AUGUST 3 19 attending Nationals SEND TWO STAMPS COMPLETE CATALOG giving full information Open Class Windsong $19995 new Standard Class Camano 100 $15995 2-Meter KMinnow $14995 PHONE 206 3817412 1 q oaei aviation beside taxiing model shutting down before getting too close point ing towards something someone would care hit couple issues ago reprinted club newsletter article written Orville Mills Oregon modeler about hazard props big four-stroke engines being thrown off engine backfires dur ing starting article drew attention presence two drive pins prop drive washer Enya 90 four-stroke should prevent occurring Shortly after magazine containing article came out received letter Scott Fahnestock World Engines Scott following say new OS FS-90s plus FS-l20s 108 FSRs forthcoming OS en gines over 60 displacement have four pins drive washer hold prop place OS strongiy recommends usage Please pass Orville Mills Safety Comes First MA June 1984 p 14 Scott aiso sent instructions ac company OS FS-90 four-stroke en gine state advisable use electric starter starting although hand-starting also possible structions contained very comprehensive description go about starting engine both electric starter using hand-starting techniques latter method recommended using lightweight wooden propellers owners instructed 'be sure wear heavy glove use chicken stick Staying subject safety starting tuning engines continue urge readers move location behind prop arc before making fuel mix ture adjustments August 1983 issue Windy City newsletter Al Brose wrote Just recently RC flier makes good practice adjust necdie valve behind engine 3-in plastic spinner shatter warn ing spinner broke apart also caused prop break spinner broke about 10 pieces flew far 50 feet away flier sure giad wasnt front plane happened However case think station ing yourself behind prop arc puts personage totally out harms way consider what editor Loin Baczkowski say Sundown Gazette newsletter Midwest Sundowners RC Club 'A back bought model Suburban Aeroclub Chicagos annual auction man bought model well-experienced hobby As got talking noticed - two middle fingers left hand somewhat shorter normal lit tle shocked shaken find out happened adjusting idle twin engine misfired Continued page 125 Megan Uodgson new Camano 100 MODEL PRODUCTS CORR BOX 314 Ponipton Plains NJ07444 Letters Editor Continued page 8 designs Ive thought useful along modification routine case first guess too far off base also print out hard copy whenever Im reasonably satis fied what see screen what want am no stretch imagination accomplished programmer Therefore software design professionally per fect does job think interesting thing about articles like yours mentioned text simple program can run some very inexpensive computers such Sinclair wili just good ajob com puters costing orders magnitude Anyway thanks Model Aviation contributors Sarpo lus Rand Van Putte Don Burke Stanton CA Judging mail already received about article seems people home computers eager try out modeling uses computer-related articles works Firebolt Revisited Since submitted Firebolt article publication have gotten flight expe rience additional information has come friend Nick Nicholson has flying Firebolt Georgia information may interest MA readers article mentioned aircrafts tendency go nose-high attitude po er cut handled holding Li some down-elevator during landings putting some down-trim transmitter better way tilt engine thrust line up 30 shim ming engine engine mount used molded nylon engine mount thrust plates Ernst Mfg Co After slight re trimming level flight under full power aircraft now remains trim power cut discussed spins article tried until recently Nick reported spun Firebolt several times will recover Hes right have now snapped spun aircraft number times no problem spin con trols neutralized plane continues spin opposite control comes out spin within turn two snaps spins fun Since made twin fins rudders firm -in balsa anchored secure ly Ive no trouble Nick re ports Firebolt has again lost complete fin/rudder assembly flying landed safely dead-stick re maining fm/rudder intact airplane has lot flying time assume vibration possibly some kind aerodynamic loading really tough twin fins urge made firm wood reinforcing built fuselage Possibly thin fiberglass cloth epoxy could used around fin/ fuselage joints strength Dick Sarpolus Shrewsbury NJ SafetylPreston Continued page 14 started running backwards model moved backwards catching fingers prop arc fingers severed first joint possible reason big four-stroke engines backfiring and/or running back wards may because owners following instructions come Continued page 128 34 Channel R/C Systems$3995 Balsa & Ply Construction add $2 pontageiharrdhng Wingspan 35 45 Engines W g Engines GIANT RIC SCALE Marane SAULNIER N Taspan sa Fumala9a1500 Sq AracBeautitit new production kits Old lavo ten Youke DntailMoldd Canopythe rugged ConstruCtion lit die-cut parts Both have * Ragged Pibngia. Moldod Engina cowling piete Kit $27500a history ot ountest wins Easy Build superB light * V Plywood Plwail Hoedwon innindadpis Stddg shroping & handingPlease add $2 poslagelhandling * Formod V dia Landing Gao Lags ey encesSretundedt Rollod PI lnntonionn residents add * Dealer Inquiries Now Invited $4395 GD..m gust 1984125 ATTENTION 1A SCALERS EPOXY GLASS COWLS FOR NOSEN PICA SID MOAGAIK 84L54 USA PLAfl CONCEPT FLEET IIoSTETLEa ACM T-CPAPT SHEBER PITTS Vs & SCALE SUPER CUB POKKEAO-7 BOEING P-12 P26 P402 P404 SPARROW HAWK GEE BEE MOD Y MACBRIENS TURBULENT CHRISTEN EAGLE BRISIGHELLAS STARDLISTER II Vs SCALE iS-BI BABY PLYBABY AIRCAMPER PILOT JUIVGIAANN 73B SCALE 7/4 SCALE OECATIdALON PIPER PA-tB & OTHERS WHEEL PANTS FOR CITABRIA STARDUS TEA II P/ITS SKYBOLT LIBER7YSPORT CHRISTEN EAGLE P6 E HAWK STEARMAPL S77NSON SR-S MULLIGAN & OTHERS 8RZEO& HEAT-ThEATED WIRE GEARSO CABANES LARGE SCALE PLANS AVAILADLE Send $100 latest list supply Modelers fiberglasa parts plansWrite call us T & D FIBERGLASS SPECIALTIES 30925 BLOCK GARDEN CItY MI 48135 PHONE 313 421-6358 HEAD LOCK NEW STANDARD bmm4~ILA OK fl/ FOR GLOW PLUG CONNECTORS CHECK THESE FEATURES US PAT4 $3952 Push twist its off 3Will favoritecomeeven under heavy hobby dealer eo,ialale w,in dvwct aid 5 SI outside t out S Positive spring contact 6 30 inch lead wire j 45 ENS/NE 4 7Angle Thrust Line Upward Three Degrees it- - I ~I i \ PAD/AL ENGINE MOUNT MI - iI/SF PLY DOUBLERS FROM HERE TO BULKHEAD 5 CONTIOLINI TIllS PROFILE0COMBA 70RA T WIDE & NARROW WEDGE 15 -- 6 oz Capaities UNIFLOW & STIKID Custom uSDA Fuel Ingredients detailed brachufeSOC stamps/check onl CAROLINA-TAFFIN DER 8345 Delhi Road charleston Hgts. SC 29418 803-553-7169 World War isnt Quite Over Yet EINDECKER E-III ILEUZL 861 horn RoadSan Antonio TX 78216 512341-6712 FUTABA 7FGKFM20995 6FGK FMSOLD OUT 7FGK18495 6FGK16495 5FGK15495 6FG15495 4FG14395 4L3-5/2810495 2F2/S-28-R4Hj7495 S-28SERVO1895 S-32SERVO2595 COVERINGS Monokole Opaque 3 Rolls 1695 Monokote Trans. 3 Rolls 1695 Monokote Mel 3 Rolls 2095 CYANOACRYLATE Hot Stuff HS-t e149 Hot Stuff HST-t e149 Hot Stuff HS-4 2 Ounce499 Hot Stuff HST4 2 Ounce499 Hot Shot245 Jet t2 Ounce179 Super Jet e179 Jet 2 Ounce599 Super Jet 2 Ounce599 EPOXY GLUE ISescon 30 Minute 9 Ounce 595 Descon 5 Minute 9 Ounce 595 Hobby pos 118 Ounce 359 Hohbvpos IV 8 Ounce 559 Hobbyposy 1118 Ounce 295 SULLIVAN HT 0600 Starter 2595 HID #601 Starter 2695 HTD-24 #602 Starter 3695 PLEASE NOTE Prices subject change manufacturers prices change items subject axaitahilily time sale Prices effect until nest Model Aslation Issue Show room prices may slightly higher Visit show room white San Antonio 100 foe discount price list refunded first order Shipping & Handling Prepaid orders 5300 COD Credit Curd orders $595 Overseas orders add estimated shipping 25% deposit required first time COD 55% sales las required Texas residents Personal check dela shipping 15 days PRODUCTS FOR THE DISCERNING MODELER Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes Headers uri Mufflers Expansion Mufflers copter Ball Mufflers * Specialized Exhaust Systems Unsurpassed Workmnnshin h Pndomanc Check SafetylPreson Continued page 125 engines letter Al Alman well-known writer about big bird happenings discussed four-stroke backfirings Al stated has number letters phone calls subject also stated discussed Scott Fahnestock following say OS engines designed run standard glow fuel problems try ing run too little oil Asec ond reason prop hazard using too much nitro 10% maximum third reason inveterate tweaker runs engines too lean problem compounded because four-stroke tuning quite broad two-stroke-oriented people prone go right past op timum setting lean run means elevated cylinder head temperature leads detonation prop-slinging Als letter also mentioned another hazard associated propellers bottom drawstrings found warm up jackets normally use club jackets Al went state very potential hazard mentioned club meeting whaddayaknow next day got graphic illustration out field other pilot wearing type jackets course drawstrings flapping breeze 60 four-stroke being hard get along sudden kneeling off balance engine startedsucking loose string ends 14-in prop puffing him up against engine What saved him badly cut-up groin lousy idle set ting engine too happy quit idle better throttle some higher setting would have really bad scene~ jacket-drawstring incident reminds similar hazard exists hap pen RC filer uses neckstrap saxophone style support trans mitter Beware unhooked transmitter dangling free around neck may well get tangled prop during starting opera tion last tip month mentioned couple years ago con cerns Dremel belt sanders table saws previously pointed out need clean balsa dust out tools after use prevent possible fire hazard believe instructions also point out need An article February 1984 issue Flypaper newsletter Milwau kee Flying Electrons Russell Knetzger editor has another solution note Russell credits Dave Copernan Cir clemasters Flying Club author following account dont know use Dremel tools unusual occur rence happen using Dremel sander After Ive used couple times clean real good vacuuming inside out including motor time after finished using could smell wood smoldering checked inside sander around belt see spark started something everything looked OK So continued project once could smell smoldering wood decided vacuum out sander try find cause smell What discovered surprised puzzled As said before vacuum motor Im cleaning up time saw glowing embers inside motor already unplugged sander wasnt sure what should didnt want use fire extinguisher didnt want stick anything holes fear damaging motor decided gently blow embers until out kept fire extinguisher handy just case After out removed motor sander check damage opened up motor com pletely cleaned out charred dust couldnt see physical damage motor wires intact insulation harmed thing found phenolic board cou ple black smudges reassembled motor tested itit ran perfectly Evidently vacuum cleaner cant reach dust accumulates back motor arcing brushes starts dust smoldering now wanted something prevent happening again Add ing filter sander housing would prevent dust entering motor So decided put filter motor series holes end motor housing cooling air enter Using 3-M particle mask cut ting proper size taped back motor also have Dremel table saw noticed same smell once after using could never locate problem After removing motor saw same condition found cleaned added filter motor also Now vacuum tools dust outside filter easily cleaned off also noticed crease rpms motors both saw sander have either tools might want check before problem occurs Have safe monthboth off flying field John Preston 12235 Tilden wood Dr Rockville MD 20852 writing advertisers mention read about Model Aviation 128 Model Aviation