___John Preston___________________________ Safety Comes First SPONTANEOUS IGNITION prerequisite starting glow engine battery light glow plug right part answer isyes continue receive steady trickle letters modelers have glow engines start unexpectedly battery connected glow plug Some letters have asked can happen thought discussion topic might beneficial readers recent letter Harold Christy Kan napolis NC described incident re quired visit emergency room local hospital fix engine-starting finger Harold wrote breaking new Fox 36 RC using 10 x 5 wooden prop After using approximate ly three 10-az tanks fuel some reason prop shed blade Luckily behind engine didnt have another 10 x 5 wood prop put 10 x 4 fiberglass prop engine refueled tank restarted engine After disconnecting glow plug power panel adjusted needle valve leaner setting engine ran OK quit opened needle valve richer mixture gave prop couple flips Without power glow plug IT STARTED As can probably guess index finger happened prop arc split sec ond came close losing finger went emergency room local hospital admitted operation repair damage prop done Upon thinking about incident could have happened could come up no reason engine start power glow plug aircraft mechanic flight engineer Air Force 22 years way could think engine starting hot magneto didnt have mag engine also didnt think could detonation have talked modelers about like myself could think anything could have caused happen dont recall ever reading about such incident col umn Has ever happened anyone else doc sewed everything back together said probably would able use index finger again can still fly neck strap hooked transmitter Harolds letter contained PS stated now understands have previously preached column shouldnt fly alone said didnt think could have managed drive emergency room himself answer Harolds question Yes Ive number previous reports glow engines starting benefit electrical power glow plug some cases letter-writers provided sufficient information make believe cause lean run prior incident caused engine become overheated sufficiently hot appears glow engine can start just like diesel requires compression fuel mixture Would believeglow engines suddenly starting no battery connect ed word caution about Electrics Methy lene chlorideit healthhazard raise ignition temperature Im guessing since Harold said Fox 36 ran quit after leaned mature overheating cause inadvertent start Another case engine starting power glow plug described letter arrived just couple weeks ago case reason appears totally different Harolds incident letter came Robert Afflerback Willingboro NJ following say know everybody tired hearing about accidents model airplane propellers little unusual good thing about nobody hurt whole thing came about after flying session went out clean oil ABC Picco 61 Having found out usual after-run oil wanting leave engine unoiled began looking suitable alternative shelf garage found aerosol can CRC About time CRC added intake began flip prop wife came asked what would like dinner As turned answer still flipping prop throttle open really holding aircraft Picco came life engine didnt run very long very much power did manage scare heck Out What real ly rattled reaching pro peller another flip started very easily could have reached running engine never really expected anything like happen glow plug hooked up starter battery still flight box am writing inform other people possible danger using aerosol lubricants Continued page 14 12 Model Aviation I-ft THis JiAS VANDY11TiME Fc SPONTANEQU5 IGNITIOI-J NE EEEEEEEE EE.E. U U SIG CHAMPION 2-STROKE FUEL FREIGHTU FREE SHIPPING ON ORDERS OVER $1500COLLECT PINT QUART GALLON 55 GAL DRUMU 0%Nitromethaxw$3 5Q$QA 5%Nitromethane$3$250O 10%Nitrometharie$45 1450$32500 15%Nitromethano$4 2 8500 25%Nitromethane$4$5000 35%Nitromethane$5 66000 SIG PREMIUM 4-STROKEFUELI 10%Nitromethane$415 $1395$29500U 15%Nitromethane$425 $1595$35900 THE CHOICE OF CHAMPION FLYERS U over 20 years SIG has blending fuel finest quality ingredients available alcohol 995% pure very best grade available nitromethane use 100% pure get honest portion based % volume maximum lubrication get perfect 50/50 blend Bake s AA Castor Oil Klotz Techniplate Racing Oil protect expensive engines finest quality fuel can made price Dont take word try some judge yourselfl See dealer first available order direct Call 7 800-247-5008 toll free orders Latest Catalog $300 -- SIG MANUFACTURING CO Montezuma IA 50171 Prices Subject chanee notice U WHY DONT GET WINO MFG CUTTING Bow AND DO IT YOURSELF THEY HAVE THE BEST ONE GOING 0 YOU CAN GET THE BLOCKS FROM THEM TOO7 0, CANT FIND ANYBODY STO CUT MY THIRD SCALE BONZO WING CORES CUTTING YOUR OWN FOAM WINGS FUSELAGES FLOATS BOAT HULLS ETC IS NOT DIFFICULT WHEN YOU USE THE RIGHT TOOLS FROM TWO DECADES OF EXPERIENCE IN THIS FIELD WE HAVE DEVELOPED WELLENGINEERED CUTTING BOW HEAVY-DUTY CONSTRUCTION GIVES GOOD FEEL TO THE BOW & -w THE ADJUSTABLE HEAT PROBE ALLOWS NICROME WIRE TEMPERATURE TO BE REGULATED FOR THAT PERFECT CUT WE HAVE FOUND THAT DIRECT 12 VOLT DC CURRENT HEATING UP THE WIRE CUTS SMOOTHER THAN AC AND IS MUCH SAFER TO OPERATE COMPLETELY ASSEMBLED WITH OPERATING INSTRUCTIONS AND THE FAMOUS STEPBYSTEP CONSTRUCTION TECHNIQUE PLAN BY RALPH ANDRAE OPERATES DIRECTLY FROM CAR MOTORCYCLE OR FIELD BOX 12 VOLT BATTERY PRICE $30 cc AT YOUR DEALER OR ORDER DIRECT FROM WING MFG. PO BOX 33 CRYSTAL LAKE IL 60010 ADD S3se SHIPPING IN USA AND ILLINOIS RESIDENTS ADD ST SALES TAX SEND S3SO FOR CATALOG CALL etS455 0417 FOR COD SERVICE U U U U U U U U I U U U U U U U high-compression engines never would have thought model engine could build up enough compression Start run aid starting battery am assuming aerosol CRC product Bob using light oil known 5-56 similar WD-40 checked labeling both products neither mentioned what propellant However both marked DANGERExtremely Flammable Im betting propellant aerosol can caused Bobs Picco start aid power glow plug ease still souse readers convinced engines can start power glow plug third incident de scribed letter Brian Kuehn Peoria Heights IL have no explanation offer Brians experience doing touch-and-goes Sweetand-Low Stick Enya 40 CV standard muffler 10 x 6 Power Prop 10% Blue Flame fuel K&B long RC plug noticed taxiing strangely Upon examination found tail wheel broken off due metal fatigue moved model pit area shut down went search miss ing tail wheel took about five minutes find decided call day never leave fuel tank can help wasnt much fuel left decided start up run out tank engine warm particularly hot choked put Hi-Starter ran out prime stopped fuel ran back down line tank took off Ni-Starter laid grass opened throttle put thumb over venturi gave prop two sharp flips prime engine usuai procedure second flip Ni-Starter still lying grass started caught totally unprepared throt tle wide open fingernails left hand Im southpaw soundly rapped Fortunately werent lacerated pulled both hands back instinctively got away howling prop tried step backwards away model left wing hooked leg before could get away must have funny watch because next few seconds model chasing other circles until finally got solid grip left wing both hands dragged back transmitter hadnt broken jagged piece music wire place tail wheel dont think would have fast enough avoid serious injury Since Ive talked people found several others glow engines start battery being hooked up blissfully unaware possibility before happened thought perhaps read ers should warned potentiai danger Eleetrles Some months ago good friend well-known Scale modeler Don Srull suggested should mention word caution column fly electric-powered RC models Dons word advice discon nect motor battery model use because mere flip switch will bring motor prop full rpm split sec ond letter arrived month Ken Holcomb San Diego CA described just such incident Ken following say Continued page 127 14 Model Aviation EKEKEEEN SIG QUALITY FUELS Special- improve cold starting idle characteristicsU High Film Strength Additives increase lubricity provide maximum lean run protection B Special Detergents help prevent varnish promote clean burning * Rust Preventatives protect expensive engines corrosion U U U U U U U U U U U U U U U U U U U Consumers Guide Radio Control Products Its Listed THIRD Dont Need ItEDITION See hobby shop order direct $075 Price $795 plus $180 UPS fora total Fooaign air mail *13451$79S plus *5 501 U 5 doilarB piOBBO Send Check MO Credit Card Info Consumers Guide 150 Ott St Hurrisonburg VA 22801 434-0350 Name Address Charge Card No MC VISA CHOICE _____________________________________ MasterCard lB # _____________________ Expiration Date __________________________ finnnd 13U FUBB flOUICYB Safety/Preston Continued page 14 have flying Electrics about two years can fly local Glider field Out noise problem gas However uniquely dangerous hazards Electrics dont happen gas Last night working Astro flight Porterfield workshop left fuselage workbench transmitter charge after its batteries dis charged motor receiver batteries fully charged workshop garage neighborhood kids enjoy visiting kids boy about 13 has built flown several Gliders AA RC models Hes starting some Electric projects completely familiar equipment its dangers As can imagine model too much temptation him experiment Somehow RC equipment switched also motor battery switched fuselage jumped down bench slammed paper bag full balsa scraps Pieces balsa thrown over garage wooden prop broke before friend could turn motor switch off Fortunately no hurt scared embarrassed friend fuselage another position bench damage injury could have resulted danger accidentally starting Elec tric much greater gas engine needs fresh fuel prime ignition start electric needs have proper switches closed chances child inex perienced adult being able start Electric accidentally much greater Please warn readers hazard Readers have warned Methylene chloridea carcinogen couple weeks ago received clipping Popu lar Science magazine sent Jim Newman Hobart IN clipping letter editor MD titled Paint-Stripper Hazards Jims note ac companied clipping said knew modelers have used strippers remove old paint covering especially Free Flight models hazard stems active ingredient strippersmethylene chloride believed both toxic a, possible carcinogen Over four years ago October 1981 issue column mentioned methylene chloride time purchased can Old Adhesive Remover remove old tile adhesive powder room refur bishing After reading warnings can noting contained methylene chloride took back refund used scraper remove old tile adhesive Im glad now made deci sion because just last week found out methylene chloride has focus atten tion three federal government agencies CPSC OSHA EPA because inhaling its vapors may cause cancer Consumer Product Safety Commission CPSC has issued press release states agency begin rulemaking proceedings could result products contain methylene chloride being labeled hazardous substances press release states substantial quantities methylene chloride chlorinated solvent found ANEWL FIRST TIME EVER NEW RADIO CONTROLINE INDOOR FLYING ALL WEEKEND LONG ADMISSION Adults$400 Children 6-12$100 Pro-SchoolFree EXHIBITION TIMES SATURDAY 10 AM -6 PM SUNDAY 10 AM -6 PM aerosol spray paints chemical paint strip pers goes state National Toxicology Program has found methylene chloride cause cancer laboratory animals levels air similai humans might encounter occasional use products adequate ventilation press release US Department Labor states OSHA issues guidelines con trolling workplac& exposure methylene chlo ride result petition UAW press release stated addition td beina skin eye lung irri tant methylene chloride has narcotic action acts depressant central nervous system Some studies laboratory animals cluding research conducted National Tox icology Program indicate methylene chlo ride carcinogen two animal species Other animal mid human studies inconclusive have no idea whether aerosol paints distribitted use hobby contain methylene chloride suggest start check ing labels aerosol paints paint strippers BIGGEST LITTLE INDOOR AIRSHOW SPONSORVO SY YOUR HOBBY INDUOTBY MODEL AVIATION ASSOCIATIONS BORDFELDT CANADA & CHCH-TV 11 86 rz21 OUR 16TH YEAR TAM YAg RAOFF ROAD DIOCOtflROCAR RACING methylene chloride present either con sider alternative product use product lots ventilationlike outdoors think thats enough safety advice month As usual have safe John Preston 12235 Tilden wood Dr Rock yule MD 20852 Plane Talk/Winter Continued page 22 rubber-powered SE 5 PopularAviation wonderful series lightweights cluding Nieuport 17 SPAD D-VIII Camel Boeing F-4B Fokker D-7 Tripe oh eve about 20 maybe 24 first Fokker Super Uiii versal weighed l oz bad forJthe Twenties few us kids took blowing up 30 45 bigger Light weight low-powered Japanese-tissue-coyContinued page 130 July1986 127 TORONTO INTERNATIONAL CENTRE 6900 AIRPORT RD MISSISSAUGA ONTARIO CANADA FREE PARKING , FUNN FLY SHOWS RO BOX 548 STATION WESTON ONT M9N 3N3 416 247-3468
Edition: Model Aviation - 1986/07
Page Numbers: 12, 14, 127
___John Preston___________________________ Safety Comes First SPONTANEOUS IGNITION prerequisite starting glow engine battery light glow plug right part answer isyes continue receive steady trickle letters modelers have glow engines start unexpectedly battery connected glow plug Some letters have asked can happen thought discussion topic might beneficial readers recent letter Harold Christy Kan napolis NC described incident re quired visit emergency room local hospital fix engine-starting finger Harold wrote breaking new Fox 36 RC using 10 x 5 wooden prop After using approximate ly three 10-az tanks fuel some reason prop shed blade Luckily behind engine didnt have another 10 x 5 wood prop put 10 x 4 fiberglass prop engine refueled tank restarted engine After disconnecting glow plug power panel adjusted needle valve leaner setting engine ran OK quit opened needle valve richer mixture gave prop couple flips Without power glow plug IT STARTED As can probably guess index finger happened prop arc split sec ond came close losing finger went emergency room local hospital admitted operation repair damage prop done Upon thinking about incident could have happened could come up no reason engine start power glow plug aircraft mechanic flight engineer Air Force 22 years way could think engine starting hot magneto didnt have mag engine also didnt think could detonation have talked modelers about like myself could think anything could have caused happen dont recall ever reading about such incident col umn Has ever happened anyone else doc sewed everything back together said probably would able use index finger again can still fly neck strap hooked transmitter Harolds letter contained PS stated now understands have previously preached column shouldnt fly alone said didnt think could have managed drive emergency room himself answer Harolds question Yes Ive number previous reports glow engines starting benefit electrical power glow plug some cases letter-writers provided sufficient information make believe cause lean run prior incident caused engine become overheated sufficiently hot appears glow engine can start just like diesel requires compression fuel mixture Would believeglow engines suddenly starting no battery connect ed word caution about Electrics Methy lene chlorideit healthhazard raise ignition temperature Im guessing since Harold said Fox 36 ran quit after leaned mature overheating cause inadvertent start Another case engine starting power glow plug described letter arrived just couple weeks ago case reason appears totally different Harolds incident letter came Robert Afflerback Willingboro NJ following say know everybody tired hearing about accidents model airplane propellers little unusual good thing about nobody hurt whole thing came about after flying session went out clean oil ABC Picco 61 Having found out usual after-run oil wanting leave engine unoiled began looking suitable alternative shelf garage found aerosol can CRC About time CRC added intake began flip prop wife came asked what would like dinner As turned answer still flipping prop throttle open really holding aircraft Picco came life engine didnt run very long very much power did manage scare heck Out What real ly rattled reaching pro peller another flip started very easily could have reached running engine never really expected anything like happen glow plug hooked up starter battery still flight box am writing inform other people possible danger using aerosol lubricants Continued page 14 12 Model Aviation I-ft THis JiAS VANDY11TiME Fc SPONTANEQU5 IGNITIOI-J NE EEEEEEEE EE.E. U U SIG CHAMPION 2-STROKE FUEL FREIGHTU FREE SHIPPING ON ORDERS OVER $1500COLLECT PINT QUART GALLON 55 GAL DRUMU 0%Nitromethaxw$3 5Q$QA 5%Nitromethane$3$250O 10%Nitrometharie$45 1450$32500 15%Nitromethano$4 2 8500 25%Nitromethane$4$5000 35%Nitromethane$5 66000 SIG PREMIUM 4-STROKEFUELI 10%Nitromethane$415 $1395$29500U 15%Nitromethane$425 $1595$35900 THE CHOICE OF CHAMPION FLYERS U over 20 years SIG has blending fuel finest quality ingredients available alcohol 995% pure very best grade available nitromethane use 100% pure get honest portion based % volume maximum lubrication get perfect 50/50 blend Bake s AA Castor Oil Klotz Techniplate Racing Oil protect expensive engines finest quality fuel can made price Dont take word try some judge yourselfl See dealer first available order direct Call 7 800-247-5008 toll free orders Latest Catalog $300 -- SIG MANUFACTURING CO Montezuma IA 50171 Prices Subject chanee notice U WHY DONT GET WINO MFG CUTTING Bow AND DO IT YOURSELF THEY HAVE THE BEST ONE GOING 0 YOU CAN GET THE BLOCKS FROM THEM TOO7 0, CANT FIND ANYBODY STO CUT MY THIRD SCALE BONZO WING CORES CUTTING YOUR OWN FOAM WINGS FUSELAGES FLOATS BOAT HULLS ETC IS NOT DIFFICULT WHEN YOU USE THE RIGHT TOOLS FROM TWO DECADES OF EXPERIENCE IN THIS FIELD WE HAVE DEVELOPED WELLENGINEERED CUTTING BOW HEAVY-DUTY CONSTRUCTION GIVES GOOD FEEL TO THE BOW & -w THE ADJUSTABLE HEAT PROBE ALLOWS NICROME WIRE TEMPERATURE TO BE REGULATED FOR THAT PERFECT CUT WE HAVE FOUND THAT DIRECT 12 VOLT DC CURRENT HEATING UP THE WIRE CUTS SMOOTHER THAN AC AND IS MUCH SAFER TO OPERATE COMPLETELY ASSEMBLED WITH OPERATING INSTRUCTIONS AND THE FAMOUS STEPBYSTEP CONSTRUCTION TECHNIQUE PLAN BY RALPH ANDRAE OPERATES DIRECTLY FROM CAR MOTORCYCLE OR FIELD BOX 12 VOLT BATTERY PRICE $30 cc AT YOUR DEALER OR ORDER DIRECT FROM WING MFG. PO BOX 33 CRYSTAL LAKE IL 60010 ADD S3se SHIPPING IN USA AND ILLINOIS RESIDENTS ADD ST SALES TAX SEND S3SO FOR CATALOG CALL etS455 0417 FOR COD SERVICE U U U U U U U U I U U U U U U U high-compression engines never would have thought model engine could build up enough compression Start run aid starting battery am assuming aerosol CRC product Bob using light oil known 5-56 similar WD-40 checked labeling both products neither mentioned what propellant However both marked DANGERExtremely Flammable Im betting propellant aerosol can caused Bobs Picco start aid power glow plug ease still souse readers convinced engines can start power glow plug third incident de scribed letter Brian Kuehn Peoria Heights IL have no explanation offer Brians experience doing touch-and-goes Sweetand-Low Stick Enya 40 CV standard muffler 10 x 6 Power Prop 10% Blue Flame fuel K&B long RC plug noticed taxiing strangely Upon examination found tail wheel broken off due metal fatigue moved model pit area shut down went search miss ing tail wheel took about five minutes find decided call day never leave fuel tank can help wasnt much fuel left decided start up run out tank engine warm particularly hot choked put Hi-Starter ran out prime stopped fuel ran back down line tank took off Ni-Starter laid grass opened throttle put thumb over venturi gave prop two sharp flips prime engine usuai procedure second flip Ni-Starter still lying grass started caught totally unprepared throt tle wide open fingernails left hand Im southpaw soundly rapped Fortunately werent lacerated pulled both hands back instinctively got away howling prop tried step backwards away model left wing hooked leg before could get away must have funny watch because next few seconds model chasing other circles until finally got solid grip left wing both hands dragged back transmitter hadnt broken jagged piece music wire place tail wheel dont think would have fast enough avoid serious injury Since Ive talked people found several others glow engines start battery being hooked up blissfully unaware possibility before happened thought perhaps read ers should warned potentiai danger Eleetrles Some months ago good friend well-known Scale modeler Don Srull suggested should mention word caution column fly electric-powered RC models Dons word advice discon nect motor battery model use because mere flip switch will bring motor prop full rpm split sec ond letter arrived month Ken Holcomb San Diego CA described just such incident Ken following say Continued page 127 14 Model Aviation EKEKEEEN SIG QUALITY FUELS Special- improve cold starting idle characteristicsU High Film Strength Additives increase lubricity provide maximum lean run protection B Special Detergents help prevent varnish promote clean burning * Rust Preventatives protect expensive engines corrosion U U U U U U U U U U U U U U U U U U U Consumers Guide Radio Control Products Its Listed THIRD Dont Need ItEDITION See hobby shop order direct $075 Price $795 plus $180 UPS fora total Fooaign air mail *13451$79S plus *5 501 U 5 doilarB piOBBO Send Check MO Credit Card Info Consumers Guide 150 Ott St Hurrisonburg VA 22801 434-0350 Name Address Charge Card No MC VISA CHOICE _____________________________________ MasterCard lB # _____________________ Expiration Date __________________________ finnnd 13U FUBB flOUICYB Safety/Preston Continued page 14 have flying Electrics about two years can fly local Glider field Out noise problem gas However uniquely dangerous hazards Electrics dont happen gas Last night working Astro flight Porterfield workshop left fuselage workbench transmitter charge after its batteries dis charged motor receiver batteries fully charged workshop garage neighborhood kids enjoy visiting kids boy about 13 has built flown several Gliders AA RC models Hes starting some Electric projects completely familiar equipment its dangers As can imagine model too much temptation him experiment Somehow RC equipment switched also motor battery switched fuselage jumped down bench slammed paper bag full balsa scraps Pieces balsa thrown over garage wooden prop broke before friend could turn motor switch off Fortunately no hurt scared embarrassed friend fuselage another position bench damage injury could have resulted danger accidentally starting Elec tric much greater gas engine needs fresh fuel prime ignition start electric needs have proper switches closed chances child inex perienced adult being able start Electric accidentally much greater Please warn readers hazard Readers have warned Methylene chloridea carcinogen couple weeks ago received clipping Popu lar Science magazine sent Jim Newman Hobart IN clipping letter editor MD titled Paint-Stripper Hazards Jims note ac companied clipping said knew modelers have used strippers remove old paint covering especially Free Flight models hazard stems active ingredient strippersmethylene chloride believed both toxic a, possible carcinogen Over four years ago October 1981 issue column mentioned methylene chloride time purchased can Old Adhesive Remover remove old tile adhesive powder room refur bishing After reading warnings can noting contained methylene chloride took back refund used scraper remove old tile adhesive Im glad now made deci sion because just last week found out methylene chloride has focus atten tion three federal government agencies CPSC OSHA EPA because inhaling its vapors may cause cancer Consumer Product Safety Commission CPSC has issued press release states agency begin rulemaking proceedings could result products contain methylene chloride being labeled hazardous substances press release states substantial quantities methylene chloride chlorinated solvent found ANEWL FIRST TIME EVER NEW RADIO CONTROLINE INDOOR FLYING ALL WEEKEND LONG ADMISSION Adults$400 Children 6-12$100 Pro-SchoolFree EXHIBITION TIMES SATURDAY 10 AM -6 PM SUNDAY 10 AM -6 PM aerosol spray paints chemical paint strip pers goes state National Toxicology Program has found methylene chloride cause cancer laboratory animals levels air similai humans might encounter occasional use products adequate ventilation press release US Department Labor states OSHA issues guidelines con trolling workplac& exposure methylene chlo ride result petition UAW press release stated addition td beina skin eye lung irri tant methylene chloride has narcotic action acts depressant central nervous system Some studies laboratory animals cluding research conducted National Tox icology Program indicate methylene chlo ride carcinogen two animal species Other animal mid human studies inconclusive have no idea whether aerosol paints distribitted use hobby contain methylene chloride suggest start check ing labels aerosol paints paint strippers BIGGEST LITTLE INDOOR AIRSHOW SPONSORVO SY YOUR HOBBY INDUOTBY MODEL AVIATION ASSOCIATIONS BORDFELDT CANADA & CHCH-TV 11 86 rz21 OUR 16TH YEAR TAM YAg RAOFF ROAD DIOCOtflROCAR RACING methylene chloride present either con sider alternative product use product lots ventilationlike outdoors think thats enough safety advice month As usual have safe John Preston 12235 Tilden wood Dr Rock yule MD 20852 Plane Talk/Winter Continued page 22 rubber-powered SE 5 PopularAviation wonderful series lightweights cluding Nieuport 17 SPAD D-VIII Camel Boeing F-4B Fokker D-7 Tripe oh eve about 20 maybe 24 first Fokker Super Uiii versal weighed l oz bad forJthe Twenties few us kids took blowing up 30 45 bigger Light weight low-powered Japanese-tissue-coyContinued page 130 July1986 127 TORONTO INTERNATIONAL CENTRE 6900 AIRPORT RD MISSISSAUGA ONTARIO CANADA FREE PARKING , FUNN FLY SHOWS RO BOX 548 STATION WESTON ONT M9N 3N3 416 247-3468
Edition: Model Aviation - 1986/07
Page Numbers: 12, 14, 127
___John Preston___________________________ Safety Comes First SPONTANEOUS IGNITION prerequisite starting glow engine battery light glow plug right part answer isyes continue receive steady trickle letters modelers have glow engines start unexpectedly battery connected glow plug Some letters have asked can happen thought discussion topic might beneficial readers recent letter Harold Christy Kan napolis NC described incident re quired visit emergency room local hospital fix engine-starting finger Harold wrote breaking new Fox 36 RC using 10 x 5 wooden prop After using approximate ly three 10-az tanks fuel some reason prop shed blade Luckily behind engine didnt have another 10 x 5 wood prop put 10 x 4 fiberglass prop engine refueled tank restarted engine After disconnecting glow plug power panel adjusted needle valve leaner setting engine ran OK quit opened needle valve richer mixture gave prop couple flips Without power glow plug IT STARTED As can probably guess index finger happened prop arc split sec ond came close losing finger went emergency room local hospital admitted operation repair damage prop done Upon thinking about incident could have happened could come up no reason engine start power glow plug aircraft mechanic flight engineer Air Force 22 years way could think engine starting hot magneto didnt have mag engine also didnt think could detonation have talked modelers about like myself could think anything could have caused happen dont recall ever reading about such incident col umn Has ever happened anyone else doc sewed everything back together said probably would able use index finger again can still fly neck strap hooked transmitter Harolds letter contained PS stated now understands have previously preached column shouldnt fly alone said didnt think could have managed drive emergency room himself answer Harolds question Yes Ive number previous reports glow engines starting benefit electrical power glow plug some cases letter-writers provided sufficient information make believe cause lean run prior incident caused engine become overheated sufficiently hot appears glow engine can start just like diesel requires compression fuel mixture Would believeglow engines suddenly starting no battery connect ed word caution about Electrics Methy lene chlorideit healthhazard raise ignition temperature Im guessing since Harold said Fox 36 ran quit after leaned mature overheating cause inadvertent start Another case engine starting power glow plug described letter arrived just couple weeks ago case reason appears totally different Harolds incident letter came Robert Afflerback Willingboro NJ following say know everybody tired hearing about accidents model airplane propellers little unusual good thing about nobody hurt whole thing came about after flying session went out clean oil ABC Picco 61 Having found out usual after-run oil wanting leave engine unoiled began looking suitable alternative shelf garage found aerosol can CRC About time CRC added intake began flip prop wife came asked what would like dinner As turned answer still flipping prop throttle open really holding aircraft Picco came life engine didnt run very long very much power did manage scare heck Out What real ly rattled reaching pro peller another flip started very easily could have reached running engine never really expected anything like happen glow plug hooked up starter battery still flight box am writing inform other people possible danger using aerosol lubricants Continued page 14 12 Model Aviation I-ft THis JiAS VANDY11TiME Fc SPONTANEQU5 IGNITIOI-J NE EEEEEEEE EE.E. U U SIG CHAMPION 2-STROKE FUEL FREIGHTU FREE SHIPPING ON ORDERS OVER $1500COLLECT PINT QUART GALLON 55 GAL DRUMU 0%Nitromethaxw$3 5Q$QA 5%Nitromethane$3$250O 10%Nitrometharie$45 1450$32500 15%Nitromethano$4 2 8500 25%Nitromethane$4$5000 35%Nitromethane$5 66000 SIG PREMIUM 4-STROKEFUELI 10%Nitromethane$415 $1395$29500U 15%Nitromethane$425 $1595$35900 THE CHOICE OF CHAMPION FLYERS U over 20 years SIG has blending fuel finest quality ingredients available alcohol 995% pure very best grade available nitromethane use 100% pure get honest portion based % volume maximum lubrication get perfect 50/50 blend Bake s AA Castor Oil Klotz Techniplate Racing Oil protect expensive engines finest quality fuel can made price Dont take word try some judge yourselfl See dealer first available order direct Call 7 800-247-5008 toll free orders Latest Catalog $300 -- SIG MANUFACTURING CO Montezuma IA 50171 Prices Subject chanee notice U WHY DONT GET WINO MFG CUTTING Bow AND DO IT YOURSELF THEY HAVE THE BEST ONE GOING 0 YOU CAN GET THE BLOCKS FROM THEM TOO7 0, CANT FIND ANYBODY STO CUT MY THIRD SCALE BONZO WING CORES CUTTING YOUR OWN FOAM WINGS FUSELAGES FLOATS BOAT HULLS ETC IS NOT DIFFICULT WHEN YOU USE THE RIGHT TOOLS FROM TWO DECADES OF EXPERIENCE IN THIS FIELD WE HAVE DEVELOPED WELLENGINEERED CUTTING BOW HEAVY-DUTY CONSTRUCTION GIVES GOOD FEEL TO THE BOW & -w THE ADJUSTABLE HEAT PROBE ALLOWS NICROME WIRE TEMPERATURE TO BE REGULATED FOR THAT PERFECT CUT WE HAVE FOUND THAT DIRECT 12 VOLT DC CURRENT HEATING UP THE WIRE CUTS SMOOTHER THAN AC AND IS MUCH SAFER TO OPERATE COMPLETELY ASSEMBLED WITH OPERATING INSTRUCTIONS AND THE FAMOUS STEPBYSTEP CONSTRUCTION TECHNIQUE PLAN BY RALPH ANDRAE OPERATES DIRECTLY FROM CAR MOTORCYCLE OR FIELD BOX 12 VOLT BATTERY PRICE $30 cc AT YOUR DEALER OR ORDER DIRECT FROM WING MFG. PO BOX 33 CRYSTAL LAKE IL 60010 ADD S3se SHIPPING IN USA AND ILLINOIS RESIDENTS ADD ST SALES TAX SEND S3SO FOR CATALOG CALL etS455 0417 FOR COD SERVICE U U U U U U U U I U U U U U U U high-compression engines never would have thought model engine could build up enough compression Start run aid starting battery am assuming aerosol CRC product Bob using light oil known 5-56 similar WD-40 checked labeling both products neither mentioned what propellant However both marked DANGERExtremely Flammable Im betting propellant aerosol can caused Bobs Picco start aid power glow plug ease still souse readers convinced engines can start power glow plug third incident de scribed letter Brian Kuehn Peoria Heights IL have no explanation offer Brians experience doing touch-and-goes Sweetand-Low Stick Enya 40 CV standard muffler 10 x 6 Power Prop 10% Blue Flame fuel K&B long RC plug noticed taxiing strangely Upon examination found tail wheel broken off due metal fatigue moved model pit area shut down went search miss ing tail wheel took about five minutes find decided call day never leave fuel tank can help wasnt much fuel left decided start up run out tank engine warm particularly hot choked put Hi-Starter ran out prime stopped fuel ran back down line tank took off Ni-Starter laid grass opened throttle put thumb over venturi gave prop two sharp flips prime engine usuai procedure second flip Ni-Starter still lying grass started caught totally unprepared throt tle wide open fingernails left hand Im southpaw soundly rapped Fortunately werent lacerated pulled both hands back instinctively got away howling prop tried step backwards away model left wing hooked leg before could get away must have funny watch because next few seconds model chasing other circles until finally got solid grip left wing both hands dragged back transmitter hadnt broken jagged piece music wire place tail wheel dont think would have fast enough avoid serious injury Since Ive talked people found several others glow engines start battery being hooked up blissfully unaware possibility before happened thought perhaps read ers should warned potentiai danger Eleetrles Some months ago good friend well-known Scale modeler Don Srull suggested should mention word caution column fly electric-powered RC models Dons word advice discon nect motor battery model use because mere flip switch will bring motor prop full rpm split sec ond letter arrived month Ken Holcomb San Diego CA described just such incident Ken following say Continued page 127 14 Model Aviation EKEKEEEN SIG QUALITY FUELS Special- improve cold starting idle characteristicsU High Film Strength Additives increase lubricity provide maximum lean run protection B Special Detergents help prevent varnish promote clean burning * Rust Preventatives protect expensive engines corrosion U U U U U U U U U U U U U U U U U U U Consumers Guide Radio Control Products Its Listed THIRD Dont Need ItEDITION See hobby shop order direct $075 Price $795 plus $180 UPS fora total Fooaign air mail *13451$79S plus *5 501 U 5 doilarB piOBBO Send Check MO Credit Card Info Consumers Guide 150 Ott St Hurrisonburg VA 22801 434-0350 Name Address Charge Card No MC VISA CHOICE _____________________________________ MasterCard lB # _____________________ Expiration Date __________________________ finnnd 13U FUBB flOUICYB Safety/Preston Continued page 14 have flying Electrics about two years can fly local Glider field Out noise problem gas However uniquely dangerous hazards Electrics dont happen gas Last night working Astro flight Porterfield workshop left fuselage workbench transmitter charge after its batteries dis charged motor receiver batteries fully charged workshop garage neighborhood kids enjoy visiting kids boy about 13 has built flown several Gliders AA RC models Hes starting some Electric projects completely familiar equipment its dangers As can imagine model too much temptation him experiment Somehow RC equipment switched also motor battery switched fuselage jumped down bench slammed paper bag full balsa scraps Pieces balsa thrown over garage wooden prop broke before friend could turn motor switch off Fortunately no hurt scared embarrassed friend fuselage another position bench damage injury could have resulted danger accidentally starting Elec tric much greater gas engine needs fresh fuel prime ignition start electric needs have proper switches closed chances child inex perienced adult being able start Electric accidentally much greater Please warn readers hazard Readers have warned Methylene chloridea carcinogen couple weeks ago received clipping Popu lar Science magazine sent Jim Newman Hobart IN clipping letter editor MD titled Paint-Stripper Hazards Jims note ac companied clipping said knew modelers have used strippers remove old paint covering especially Free Flight models hazard stems active ingredient strippersmethylene chloride believed both toxic a, possible carcinogen Over four years ago October 1981 issue column mentioned methylene chloride time purchased can Old Adhesive Remover remove old tile adhesive powder room refur bishing After reading warnings can noting contained methylene chloride took back refund used scraper remove old tile adhesive Im glad now made deci sion because just last week found out methylene chloride has focus atten tion three federal government agencies CPSC OSHA EPA because inhaling its vapors may cause cancer Consumer Product Safety Commission CPSC has issued press release states agency begin rulemaking proceedings could result products contain methylene chloride being labeled hazardous substances press release states substantial quantities methylene chloride chlorinated solvent found ANEWL FIRST TIME EVER NEW RADIO CONTROLINE INDOOR FLYING ALL WEEKEND LONG ADMISSION Adults$400 Children 6-12$100 Pro-SchoolFree EXHIBITION TIMES SATURDAY 10 AM -6 PM SUNDAY 10 AM -6 PM aerosol spray paints chemical paint strip pers goes state National Toxicology Program has found methylene chloride cause cancer laboratory animals levels air similai humans might encounter occasional use products adequate ventilation press release US Department Labor states OSHA issues guidelines con trolling workplac& exposure methylene chlo ride result petition UAW press release stated addition td beina skin eye lung irri tant methylene chloride has narcotic action acts depressant central nervous system Some studies laboratory animals cluding research conducted National Tox icology Program indicate methylene chlo ride carcinogen two animal species Other animal mid human studies inconclusive have no idea whether aerosol paints distribitted use hobby contain methylene chloride suggest start check ing labels aerosol paints paint strippers BIGGEST LITTLE INDOOR AIRSHOW SPONSORVO SY YOUR HOBBY INDUOTBY MODEL AVIATION ASSOCIATIONS BORDFELDT CANADA & CHCH-TV 11 86 rz21 OUR 16TH YEAR TAM YAg RAOFF ROAD DIOCOtflROCAR RACING methylene chloride present either con sider alternative product use product lots ventilationlike outdoors think thats enough safety advice month As usual have safe John Preston 12235 Tilden wood Dr Rock yule MD 20852 Plane Talk/Winter Continued page 22 rubber-powered SE 5 PopularAviation wonderful series lightweights cluding Nieuport 17 SPAD D-VIII Camel Boeing F-4B Fokker D-7 Tripe oh eve about 20 maybe 24 first Fokker Super Uiii versal weighed l oz bad forJthe Twenties few us kids took blowing up 30 45 bigger Light weight low-powered Japanese-tissue-coyContinued page 130 July1986 127 TORONTO INTERNATIONAL CENTRE 6900 AIRPORT RD MISSISSAUGA ONTARIO CANADA FREE PARKING , FUNN FLY SHOWS RO BOX 548 STATION WESTON ONT M9N 3N3 416 247-3468