JMES FIRST ever safe know ingly fly model over other persons Also watch out whirling props shorted batteries John Preston THE DOPESHEET news letter Terre Haute IN RC Club editor Don May following say column titled Safe Flying Obviously nobody will aim five- sixpound 70 mph projectile head intentionally consider solder joint breaks elevator flutters rips off servo motor hits dead spot someone else turns transmitter having frequency pin best pilot world can nothing before inevitable happens way assure inevit able happens safe spot never allow model fly over innocent heads Amen personal experience flying field just week ago drove home message no matter what fly never fly over people friend visiting Australia flying big 60powered 18-year-old delta sudden didnt have What went wrong doubt will ever know result loss radio response crasha vertical dive about 200 feet Surprisingly model suffered little damage thanks wetter-than-normal summer kept ground relatively soft nose model buried itself field depth about 4 behind engine two us couldnt pull free until dug away dirt around engine telling Because want too ponder what could have result model descended crowded pit area instead out boondocks some trouble finding record upon retrieval found radio working flawlessly range check made both antenna showed adequate signal strength Violent flutter control surfaces occurred well death dive before started Radio interference another transmitter frequency Perhaps well never know sure doubt readers have hobby length time havent some time other put ground because loss tenuous link between pilot model radio signal Doesnt matter what brand buy operate same principle use basically similar components Should components fail safety fellow model ers yourself could compromised happen over pits spectator area time happens Staying subject never flying over people back July issue ModelAviation published letter reader spoke Out against RC flying moving vehicle public highway Since have addi tional letters conversations question safety such activity intended raise issue first meeting AMA Safety Committee committee estab lished Executive Council vote meeting November 1980 However since Chairman has resign replacement has yet named first meeting committee has yet take place Perhaps will criticized discussing cross-country racing RC models maga zine since take title column seriously feel safer ways bring model aircraft publics eye also raising money charitable organizations readers have different opinions lets hear Changing subject old favorite propel ler safety buzz saw front of models some fly ducted fans continues prime topic correspondence recent letter Tony Paolillo flies Richmond Model Flying Club Staten Island NY asks information safety plastic props Tonys club like number others know has outlawed use plastic props engines above specified displacement case Richmond club 015 cu limit before wooden prop must used present time position either endorse condemn plastic props would like run some tests would provide objective data strength blade separation point view ofplastic versus wooden props hesitant absence facility would give us controlled safe environment prop manufacturers have such data would welcome letter can say present have heard incidents blade separation props made synthetic materials wooden props However wooden props entirely exempt problem advice has stated previous columns subject namely dont stand line prop arc tweaking needle valve full throttle Control Line Free Flight modelers should especi ally careful since generally dont use throttleequipped engines have read articles indicate brands plastic props will outperform wooden counterparts such case club bans use plastic props may penalizing competition modeler may need ounce thrust can find However part popularity plastic prop stems its ability take abuse damage does wooden variety Could contributing factor reports blade shedding plastic props have seen plastic prop driven ground during poor landing sign damage could damage although invisible Comments plastics ex perts welcomed Weve said before well say again Continued page 12 10 Model Aviation T II I4EY BUDDY 4AVE rU SEtN tAODEL AI1PLANE like Quadra. Youll Love PARTNER Optional twin-stack muffler Smoke version available Double-ring piston higher compression er life Optional choke easy hand starting Special close-coupled high-tension system less RF radiation Solid-beam type mount optional radial supports avail Roller thrust-bearing exclusively use model aircraft Power-balanced light-weight flywheel 37 SUPER POWER ROPER 24 KIORITZ ENGINE 22 PARTNER ENGINE 22 QUADRA ENGINE 19 ROPER ENGINE 79 ENGINE HUB & MOUNT PACK 79 USED DEMO ENGINE 19 ROPER ENGINE KIT BALENCED 6-BOLT HUB Ropa Part,, & Quadra PROP DRILL JIG RADIAL MOUNT-Roper 27 & 79 RADIAL MOUNT- Pane, 702995 1037295 7237000 Introducing An updated ef fort people de signed Quadra Note improvements made especially miniature air craft use Roller Thrust-Bearing Double-Ring Piston Spark Plug Location Low3 1/2 lb Weight Power Output LIMITED TIME OFFER LIST $12500 SALE 5 prop hub Optional brite spinner starter cord eroove SALE 2495 7000 500 ESO 795 250 7000 7000 2000 WRITE OR CALLI Send 18 Stamp Catalog Will Ship Orders Same Day COD UPS I HORNERS SALESINCRt2eax 9 300 Dixie HwyBeecher IL 00401 312 940-25151 Suggested Retail $4595 Limited Offer $2995 Prepaid Available eXclusively through BLAINES PLANES & AC Indiana residents add 4% sales taX C 0 D Accepted DONT FORGE77 Call write lowest prices anywhere popular Radios Kits comolete line products Ask specialpurchasing plan-- eLAINE" S PLANES YOU wont disappointedSOS flO SS tt ~ 21 9 495-3275 0 Common injury modelers caused contact prop running engine Plastic wood both Capable doing grievous bodily harm An incident type reported Buzzline newsletter Carlisle Aero modelers Carlisle PA editor Glenn Love may hard believebut its first weve heard John Berry bench testing new 60 last week process attempt ing start engine unsuccessfully fresh prime flipping through battery being hooked up suddenly engine fired large chunk flesh whacked Out finger Perhaps thought diesels could start aid battery glow plug Stand forewarned possible though probable conventional glow engines can likewise An incident described another newsletter may have fictitious dialogue assume relates true story Prop Wash newsletter Flying Cardinals Club Ken tucky editor Dave Johnstone story contributed Bud Horusby Down field other day subject somehow got around flight-pack batteries Dave Johnstone asked ever seen flight-battery short out No said Wow said Dave rt brand-new switch never saw such smoke melting stuff hadnt jerked wire off theres no telling what might have happened Good horse laugh back flying Funny . glitch Later evening Look battery wire Loose goose Bet thats what caused glitch - Oh well wheres soldering iron Now sit back waiting iron heat up conversation Dave creeps back mind old fuel-soaked Mooney sitting wifes dining room table waits . Gee thinks What screw up short pack Picture holocaust Oh well better safe sorry observes brightly Jerk out comes battery Klunk handy saucer Melt goes solder Flash! Zzztt! Smoookee! Whatthehell! goes battery ruining saucer battery old ladys beauty sleep Now its true nobody could manage build perfect solder bridge across switch shudder think what might have happened battery sitting inside old Mooney instead laying out open Maybe itd worthwhile make SOP pull battery out plane working part power circuit just gotta see flash smoke pack shorts believe power little batteries have stored inside addition Flash Zzzttt Smoookee WhatContinued page 64 12 Model Aviation Johns 18-year-old delta referred column 2X version very populr Midwest kit years ago Powered Davis-dieselized 60 survived 200-ft verti cal dive terra firma radio signal lost due unknown causes RETAIL 524900 2 7200 72&00 72500 9500 7995 7495 Homers Specials PART 772 778 717 709 709 779 770 77 107 SALE 78900 77995 9995 9995 4995 6500 2500 3995 TWIN STACK EXHAUST-3 7 & Kiorit705 TWIN STACK EXHAUST- Partner720 CHOKE ASSEMBLY- Pareer & Quadra727 BRITE SPINNER- Ropar Part& Quad722 NEOPRENE GAS LINE- per foot107 RESISTOR SPARK PLUG RCJ-6773 TO UPDATE EARLY MODEL 37 ENG Neo design reed bank 37 EXCHANGE Special machinad Ilyorheal 37 BaBbaarjng front housiny 37 BIG PROPS AVAILABLE Pinished balanced rood Designed Pure Enjoyment gentle yet responsive fun-machIne can constructed eight easy hours 2 wing sweep eliminates tip stall An excellent windy weather craft YOU went go want to.check features ALL BALSA HARDWOOD AND PLYWOOD CONSTRUCTION -4 RADO2 3 ChannelWAREAS450 sq ENG NE5 30 suaVi SOan WE GH2 3 7/2 Lbs W CNORO pLArBorroat VfhVG -I RADIO CONTROL SCALE PILOTS E WHEELS CONTROL-LINECYLINDERS ENGINE KITS INE GUN KITS FREE-FLIGHT STIC DISPLAY MODELS SEND $1 FOR COMPLETE ILLUSTRATED CATALOG DEPT MA 181 PAWNEE STREET SAN MARCOS CA 9 some models used Thump end pond bounce flight About dyeing condenser paper would like suggest two methods have used easy way overlap strokes yellow Magic Marker before tissue applied Seems work great yellow other colors Others prefer Dri-Mark spray dye artists supply stores Indoor 1911 Caudron made frame large piece cardboard box side cutout square hole bit smaller piece condenser paper glued paper like window sprayed mixture rubbing alcohol Dr Martins dye water-soluble comes little bottles art supply stores About 12 applications done light window shining through get evenness spraying did job hair drier speeded drying process between coats water content rubbing alcohol heat drier did great job shrinking tissue am finding model building time getting harder come year Anything speeds up process bit welcome must admit have become addicted Carl Goldbergs Super Jet cyanoacrylate glue old bit dusting everything baking soda necessary thicker glue fills slightly end grain As becomes more familiar its use may possible become careless becoming addict too just remem ber wear glasses drop eye pain neck say Make socket out heavy material replace bottle time use keeping stuff well back building table wont lean over pick up dropped part jam eye Mainly keep locked cupboard 357 Magnum kids present model-mad Miss pre-med suitors proposal once said Please dont give ring Ill yours bring armful balsa instead Thanks cards letters great 5 x 7 contrasty black-and-white pix future columns Bill Warner 423-C San VicenteBlvd Santa Monica CA 90402 Safety Preston Continued page 12 thehell Nicad batteries may well explode left shorted condition length time years ago shorted single 600 mAh cell few seconds burned fingers process unshorting Its amazing fast heat up during dead-short condition Maybe youve never personally experienced total loss control model blade separation prop glow engine started aid battery shorted battery pack perhaps turn next Have safe month John Preston 7012 Eltira Court Falls Churck VA 22042 SAFE FLYING IS NO ACCIDENT 64 Model Aviation R EALIS Nil SCALE ACCESSORIES WILLIAMS BROTHERS r NEW GLASS FILLED MOTOR MOUNTS Featuring 0405195LONG GLASS 1011225 FILLED NYLON 1519235 FOR STRENGTH 2025245 AND STABILITY 3035265 4045275Alignment 4045L300Lines 5060325 6070325Mounting Interchangeable Kraft OEM BULK INQUIRES INVITEDFlat bottom nose gear SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 4560 LAYHIGH RD HAMILTON OH 45013 ARCA COOt 513 738 1576 k ALUMINUM HUB WHEELS Finest Wheels Made Feature AUTHENTIC APPEARANCE & FAST ASSEMBLY Rugged construction aluminum Readily installed removed hub balloon type Equipped Built-in treaded tire retaining device LONG-LASTING SPONGE light weight *pat App for
Edition: Model Aviation - 1981/12
Page Numbers: 10, 12, 64
JMES FIRST ever safe know ingly fly model over other persons Also watch out whirling props shorted batteries John Preston THE DOPESHEET news letter Terre Haute IN RC Club editor Don May following say column titled Safe Flying Obviously nobody will aim five- sixpound 70 mph projectile head intentionally consider solder joint breaks elevator flutters rips off servo motor hits dead spot someone else turns transmitter having frequency pin best pilot world can nothing before inevitable happens way assure inevit able happens safe spot never allow model fly over innocent heads Amen personal experience flying field just week ago drove home message no matter what fly never fly over people friend visiting Australia flying big 60powered 18-year-old delta sudden didnt have What went wrong doubt will ever know result loss radio response crasha vertical dive about 200 feet Surprisingly model suffered little damage thanks wetter-than-normal summer kept ground relatively soft nose model buried itself field depth about 4 behind engine two us couldnt pull free until dug away dirt around engine telling Because want too ponder what could have result model descended crowded pit area instead out boondocks some trouble finding record upon retrieval found radio working flawlessly range check made both antenna showed adequate signal strength Violent flutter control surfaces occurred well death dive before started Radio interference another transmitter frequency Perhaps well never know sure doubt readers have hobby length time havent some time other put ground because loss tenuous link between pilot model radio signal Doesnt matter what brand buy operate same principle use basically similar components Should components fail safety fellow model ers yourself could compromised happen over pits spectator area time happens Staying subject never flying over people back July issue ModelAviation published letter reader spoke Out against RC flying moving vehicle public highway Since have addi tional letters conversations question safety such activity intended raise issue first meeting AMA Safety Committee committee estab lished Executive Council vote meeting November 1980 However since Chairman has resign replacement has yet named first meeting committee has yet take place Perhaps will criticized discussing cross-country racing RC models maga zine since take title column seriously feel safer ways bring model aircraft publics eye also raising money charitable organizations readers have different opinions lets hear Changing subject old favorite propel ler safety buzz saw front of models some fly ducted fans continues prime topic correspondence recent letter Tony Paolillo flies Richmond Model Flying Club Staten Island NY asks information safety plastic props Tonys club like number others know has outlawed use plastic props engines above specified displacement case Richmond club 015 cu limit before wooden prop must used present time position either endorse condemn plastic props would like run some tests would provide objective data strength blade separation point view ofplastic versus wooden props hesitant absence facility would give us controlled safe environment prop manufacturers have such data would welcome letter can say present have heard incidents blade separation props made synthetic materials wooden props However wooden props entirely exempt problem advice has stated previous columns subject namely dont stand line prop arc tweaking needle valve full throttle Control Line Free Flight modelers should especi ally careful since generally dont use throttleequipped engines have read articles indicate brands plastic props will outperform wooden counterparts such case club bans use plastic props may penalizing competition modeler may need ounce thrust can find However part popularity plastic prop stems its ability take abuse damage does wooden variety Could contributing factor reports blade shedding plastic props have seen plastic prop driven ground during poor landing sign damage could damage although invisible Comments plastics ex perts welcomed Weve said before well say again Continued page 12 10 Model Aviation T II I4EY BUDDY 4AVE rU SEtN tAODEL AI1PLANE like Quadra. Youll Love PARTNER Optional twin-stack muffler Smoke version available Double-ring piston higher compression er life Optional choke easy hand starting Special close-coupled high-tension system less RF radiation Solid-beam type mount optional radial supports avail Roller thrust-bearing exclusively use model aircraft Power-balanced light-weight flywheel 37 SUPER POWER ROPER 24 KIORITZ ENGINE 22 PARTNER ENGINE 22 QUADRA ENGINE 19 ROPER ENGINE 79 ENGINE HUB & MOUNT PACK 79 USED DEMO ENGINE 19 ROPER ENGINE KIT BALENCED 6-BOLT HUB Ropa Part,, & Quadra PROP DRILL JIG RADIAL MOUNT-Roper 27 & 79 RADIAL MOUNT- Pane, 702995 1037295 7237000 Introducing An updated ef fort people de signed Quadra Note improvements made especially miniature air craft use Roller Thrust-Bearing Double-Ring Piston Spark Plug Location Low3 1/2 lb Weight Power Output LIMITED TIME OFFER LIST $12500 SALE 5 prop hub Optional brite spinner starter cord eroove SALE 2495 7000 500 ESO 795 250 7000 7000 2000 WRITE OR CALLI Send 18 Stamp Catalog Will Ship Orders Same Day COD UPS I HORNERS SALESINCRt2eax 9 300 Dixie HwyBeecher IL 00401 312 940-25151 Suggested Retail $4595 Limited Offer $2995 Prepaid Available eXclusively through BLAINES PLANES & AC Indiana residents add 4% sales taX C 0 D Accepted DONT FORGE77 Call write lowest prices anywhere popular Radios Kits comolete line products Ask specialpurchasing plan-- eLAINE" S PLANES YOU wont disappointedSOS flO SS tt ~ 21 9 495-3275 0 Common injury modelers caused contact prop running engine Plastic wood both Capable doing grievous bodily harm An incident type reported Buzzline newsletter Carlisle Aero modelers Carlisle PA editor Glenn Love may hard believebut its first weve heard John Berry bench testing new 60 last week process attempt ing start engine unsuccessfully fresh prime flipping through battery being hooked up suddenly engine fired large chunk flesh whacked Out finger Perhaps thought diesels could start aid battery glow plug Stand forewarned possible though probable conventional glow engines can likewise An incident described another newsletter may have fictitious dialogue assume relates true story Prop Wash newsletter Flying Cardinals Club Ken tucky editor Dave Johnstone story contributed Bud Horusby Down field other day subject somehow got around flight-pack batteries Dave Johnstone asked ever seen flight-battery short out No said Wow said Dave rt brand-new switch never saw such smoke melting stuff hadnt jerked wire off theres no telling what might have happened Good horse laugh back flying Funny . glitch Later evening Look battery wire Loose goose Bet thats what caused glitch - Oh well wheres soldering iron Now sit back waiting iron heat up conversation Dave creeps back mind old fuel-soaked Mooney sitting wifes dining room table waits . Gee thinks What screw up short pack Picture holocaust Oh well better safe sorry observes brightly Jerk out comes battery Klunk handy saucer Melt goes solder Flash! Zzztt! Smoookee! Whatthehell! goes battery ruining saucer battery old ladys beauty sleep Now its true nobody could manage build perfect solder bridge across switch shudder think what might have happened battery sitting inside old Mooney instead laying out open Maybe itd worthwhile make SOP pull battery out plane working part power circuit just gotta see flash smoke pack shorts believe power little batteries have stored inside addition Flash Zzzttt Smoookee WhatContinued page 64 12 Model Aviation Johns 18-year-old delta referred column 2X version very populr Midwest kit years ago Powered Davis-dieselized 60 survived 200-ft verti cal dive terra firma radio signal lost due unknown causes RETAIL 524900 2 7200 72&00 72500 9500 7995 7495 Homers Specials PART 772 778 717 709 709 779 770 77 107 SALE 78900 77995 9995 9995 4995 6500 2500 3995 TWIN STACK EXHAUST-3 7 & Kiorit705 TWIN STACK EXHAUST- Partner720 CHOKE ASSEMBLY- Pareer & Quadra727 BRITE SPINNER- Ropar Part& Quad722 NEOPRENE GAS LINE- per foot107 RESISTOR SPARK PLUG RCJ-6773 TO UPDATE EARLY MODEL 37 ENG Neo design reed bank 37 EXCHANGE Special machinad Ilyorheal 37 BaBbaarjng front housiny 37 BIG PROPS AVAILABLE Pinished balanced rood Designed Pure Enjoyment gentle yet responsive fun-machIne can constructed eight easy hours 2 wing sweep eliminates tip stall An excellent windy weather craft YOU went go want to.check features ALL BALSA HARDWOOD AND PLYWOOD CONSTRUCTION -4 RADO2 3 ChannelWAREAS450 sq ENG NE5 30 suaVi SOan WE GH2 3 7/2 Lbs W CNORO pLArBorroat VfhVG -I RADIO CONTROL SCALE PILOTS E WHEELS CONTROL-LINECYLINDERS ENGINE KITS INE GUN KITS FREE-FLIGHT STIC DISPLAY MODELS SEND $1 FOR COMPLETE ILLUSTRATED CATALOG DEPT MA 181 PAWNEE STREET SAN MARCOS CA 9 some models used Thump end pond bounce flight About dyeing condenser paper would like suggest two methods have used easy way overlap strokes yellow Magic Marker before tissue applied Seems work great yellow other colors Others prefer Dri-Mark spray dye artists supply stores Indoor 1911 Caudron made frame large piece cardboard box side cutout square hole bit smaller piece condenser paper glued paper like window sprayed mixture rubbing alcohol Dr Martins dye water-soluble comes little bottles art supply stores About 12 applications done light window shining through get evenness spraying did job hair drier speeded drying process between coats water content rubbing alcohol heat drier did great job shrinking tissue am finding model building time getting harder come year Anything speeds up process bit welcome must admit have become addicted Carl Goldbergs Super Jet cyanoacrylate glue old bit dusting everything baking soda necessary thicker glue fills slightly end grain As becomes more familiar its use may possible become careless becoming addict too just remem ber wear glasses drop eye pain neck say Make socket out heavy material replace bottle time use keeping stuff well back building table wont lean over pick up dropped part jam eye Mainly keep locked cupboard 357 Magnum kids present model-mad Miss pre-med suitors proposal once said Please dont give ring Ill yours bring armful balsa instead Thanks cards letters great 5 x 7 contrasty black-and-white pix future columns Bill Warner 423-C San VicenteBlvd Santa Monica CA 90402 Safety Preston Continued page 12 thehell Nicad batteries may well explode left shorted condition length time years ago shorted single 600 mAh cell few seconds burned fingers process unshorting Its amazing fast heat up during dead-short condition Maybe youve never personally experienced total loss control model blade separation prop glow engine started aid battery shorted battery pack perhaps turn next Have safe month John Preston 7012 Eltira Court Falls Churck VA 22042 SAFE FLYING IS NO ACCIDENT 64 Model Aviation R EALIS Nil SCALE ACCESSORIES WILLIAMS BROTHERS r NEW GLASS FILLED MOTOR MOUNTS Featuring 0405195LONG GLASS 1011225 FILLED NYLON 1519235 FOR STRENGTH 2025245 AND STABILITY 3035265 4045275Alignment 4045L300Lines 5060325 6070325Mounting Interchangeable Kraft OEM BULK INQUIRES INVITEDFlat bottom nose gear SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 4560 LAYHIGH RD HAMILTON OH 45013 ARCA COOt 513 738 1576 k ALUMINUM HUB WHEELS Finest Wheels Made Feature AUTHENTIC APPEARANCE & FAST ASSEMBLY Rugged construction aluminum Readily installed removed hub balloon type Equipped Built-in treaded tire retaining device LONG-LASTING SPONGE light weight *pat App for
Edition: Model Aviation - 1981/12
Page Numbers: 10, 12, 64
JMES FIRST ever safe know ingly fly model over other persons Also watch out whirling props shorted batteries John Preston THE DOPESHEET news letter Terre Haute IN RC Club editor Don May following say column titled Safe Flying Obviously nobody will aim five- sixpound 70 mph projectile head intentionally consider solder joint breaks elevator flutters rips off servo motor hits dead spot someone else turns transmitter having frequency pin best pilot world can nothing before inevitable happens way assure inevit able happens safe spot never allow model fly over innocent heads Amen personal experience flying field just week ago drove home message no matter what fly never fly over people friend visiting Australia flying big 60powered 18-year-old delta sudden didnt have What went wrong doubt will ever know result loss radio response crasha vertical dive about 200 feet Surprisingly model suffered little damage thanks wetter-than-normal summer kept ground relatively soft nose model buried itself field depth about 4 behind engine two us couldnt pull free until dug away dirt around engine telling Because want too ponder what could have result model descended crowded pit area instead out boondocks some trouble finding record upon retrieval found radio working flawlessly range check made both antenna showed adequate signal strength Violent flutter control surfaces occurred well death dive before started Radio interference another transmitter frequency Perhaps well never know sure doubt readers have hobby length time havent some time other put ground because loss tenuous link between pilot model radio signal Doesnt matter what brand buy operate same principle use basically similar components Should components fail safety fellow model ers yourself could compromised happen over pits spectator area time happens Staying subject never flying over people back July issue ModelAviation published letter reader spoke Out against RC flying moving vehicle public highway Since have addi tional letters conversations question safety such activity intended raise issue first meeting AMA Safety Committee committee estab lished Executive Council vote meeting November 1980 However since Chairman has resign replacement has yet named first meeting committee has yet take place Perhaps will criticized discussing cross-country racing RC models maga zine since take title column seriously feel safer ways bring model aircraft publics eye also raising money charitable organizations readers have different opinions lets hear Changing subject old favorite propel ler safety buzz saw front of models some fly ducted fans continues prime topic correspondence recent letter Tony Paolillo flies Richmond Model Flying Club Staten Island NY asks information safety plastic props Tonys club like number others know has outlawed use plastic props engines above specified displacement case Richmond club 015 cu limit before wooden prop must used present time position either endorse condemn plastic props would like run some tests would provide objective data strength blade separation point view ofplastic versus wooden props hesitant absence facility would give us controlled safe environment prop manufacturers have such data would welcome letter can say present have heard incidents blade separation props made synthetic materials wooden props However wooden props entirely exempt problem advice has stated previous columns subject namely dont stand line prop arc tweaking needle valve full throttle Control Line Free Flight modelers should especi ally careful since generally dont use throttleequipped engines have read articles indicate brands plastic props will outperform wooden counterparts such case club bans use plastic props may penalizing competition modeler may need ounce thrust can find However part popularity plastic prop stems its ability take abuse damage does wooden variety Could contributing factor reports blade shedding plastic props have seen plastic prop driven ground during poor landing sign damage could damage although invisible Comments plastics ex perts welcomed Weve said before well say again Continued page 12 10 Model Aviation T II I4EY BUDDY 4AVE rU SEtN tAODEL AI1PLANE like Quadra. Youll Love PARTNER Optional twin-stack muffler Smoke version available Double-ring piston higher compression er life Optional choke easy hand starting Special close-coupled high-tension system less RF radiation Solid-beam type mount optional radial supports avail Roller thrust-bearing exclusively use model aircraft Power-balanced light-weight flywheel 37 SUPER POWER ROPER 24 KIORITZ ENGINE 22 PARTNER ENGINE 22 QUADRA ENGINE 19 ROPER ENGINE 79 ENGINE HUB & MOUNT PACK 79 USED DEMO ENGINE 19 ROPER ENGINE KIT BALENCED 6-BOLT HUB Ropa Part,, & Quadra PROP DRILL JIG RADIAL MOUNT-Roper 27 & 79 RADIAL MOUNT- Pane, 702995 1037295 7237000 Introducing An updated ef fort people de signed Quadra Note improvements made especially miniature air craft use Roller Thrust-Bearing Double-Ring Piston Spark Plug Location Low3 1/2 lb Weight Power Output LIMITED TIME OFFER LIST $12500 SALE 5 prop hub Optional brite spinner starter cord eroove SALE 2495 7000 500 ESO 795 250 7000 7000 2000 WRITE OR CALLI Send 18 Stamp Catalog Will Ship Orders Same Day COD UPS I HORNERS SALESINCRt2eax 9 300 Dixie HwyBeecher IL 00401 312 940-25151 Suggested Retail $4595 Limited Offer $2995 Prepaid Available eXclusively through BLAINES PLANES & AC Indiana residents add 4% sales taX C 0 D Accepted DONT FORGE77 Call write lowest prices anywhere popular Radios Kits comolete line products Ask specialpurchasing plan-- eLAINE" S PLANES YOU wont disappointedSOS flO SS tt ~ 21 9 495-3275 0 Common injury modelers caused contact prop running engine Plastic wood both Capable doing grievous bodily harm An incident type reported Buzzline newsletter Carlisle Aero modelers Carlisle PA editor Glenn Love may hard believebut its first weve heard John Berry bench testing new 60 last week process attempt ing start engine unsuccessfully fresh prime flipping through battery being hooked up suddenly engine fired large chunk flesh whacked Out finger Perhaps thought diesels could start aid battery glow plug Stand forewarned possible though probable conventional glow engines can likewise An incident described another newsletter may have fictitious dialogue assume relates true story Prop Wash newsletter Flying Cardinals Club Ken tucky editor Dave Johnstone story contributed Bud Horusby Down field other day subject somehow got around flight-pack batteries Dave Johnstone asked ever seen flight-battery short out No said Wow said Dave rt brand-new switch never saw such smoke melting stuff hadnt jerked wire off theres no telling what might have happened Good horse laugh back flying Funny . glitch Later evening Look battery wire Loose goose Bet thats what caused glitch - Oh well wheres soldering iron Now sit back waiting iron heat up conversation Dave creeps back mind old fuel-soaked Mooney sitting wifes dining room table waits . Gee thinks What screw up short pack Picture holocaust Oh well better safe sorry observes brightly Jerk out comes battery Klunk handy saucer Melt goes solder Flash! Zzztt! Smoookee! Whatthehell! goes battery ruining saucer battery old ladys beauty sleep Now its true nobody could manage build perfect solder bridge across switch shudder think what might have happened battery sitting inside old Mooney instead laying out open Maybe itd worthwhile make SOP pull battery out plane working part power circuit just gotta see flash smoke pack shorts believe power little batteries have stored inside addition Flash Zzzttt Smoookee WhatContinued page 64 12 Model Aviation Johns 18-year-old delta referred column 2X version very populr Midwest kit years ago Powered Davis-dieselized 60 survived 200-ft verti cal dive terra firma radio signal lost due unknown causes RETAIL 524900 2 7200 72&00 72500 9500 7995 7495 Homers Specials PART 772 778 717 709 709 779 770 77 107 SALE 78900 77995 9995 9995 4995 6500 2500 3995 TWIN STACK EXHAUST-3 7 & Kiorit705 TWIN STACK EXHAUST- Partner720 CHOKE ASSEMBLY- Pareer & Quadra727 BRITE SPINNER- Ropar Part& Quad722 NEOPRENE GAS LINE- per foot107 RESISTOR SPARK PLUG RCJ-6773 TO UPDATE EARLY MODEL 37 ENG Neo design reed bank 37 EXCHANGE Special machinad Ilyorheal 37 BaBbaarjng front housiny 37 BIG PROPS AVAILABLE Pinished balanced rood Designed Pure Enjoyment gentle yet responsive fun-machIne can constructed eight easy hours 2 wing sweep eliminates tip stall An excellent windy weather craft YOU went go want to.check features ALL BALSA HARDWOOD AND PLYWOOD CONSTRUCTION -4 RADO2 3 ChannelWAREAS450 sq ENG NE5 30 suaVi SOan WE GH2 3 7/2 Lbs W CNORO pLArBorroat VfhVG -I RADIO CONTROL SCALE PILOTS E WHEELS CONTROL-LINECYLINDERS ENGINE KITS INE GUN KITS FREE-FLIGHT STIC DISPLAY MODELS SEND $1 FOR COMPLETE ILLUSTRATED CATALOG DEPT MA 181 PAWNEE STREET SAN MARCOS CA 9 some models used Thump end pond bounce flight About dyeing condenser paper would like suggest two methods have used easy way overlap strokes yellow Magic Marker before tissue applied Seems work great yellow other colors Others prefer Dri-Mark spray dye artists supply stores Indoor 1911 Caudron made frame large piece cardboard box side cutout square hole bit smaller piece condenser paper glued paper like window sprayed mixture rubbing alcohol Dr Martins dye water-soluble comes little bottles art supply stores About 12 applications done light window shining through get evenness spraying did job hair drier speeded drying process between coats water content rubbing alcohol heat drier did great job shrinking tissue am finding model building time getting harder come year Anything speeds up process bit welcome must admit have become addicted Carl Goldbergs Super Jet cyanoacrylate glue old bit dusting everything baking soda necessary thicker glue fills slightly end grain As becomes more familiar its use may possible become careless becoming addict too just remem ber wear glasses drop eye pain neck say Make socket out heavy material replace bottle time use keeping stuff well back building table wont lean over pick up dropped part jam eye Mainly keep locked cupboard 357 Magnum kids present model-mad Miss pre-med suitors proposal once said Please dont give ring Ill yours bring armful balsa instead Thanks cards letters great 5 x 7 contrasty black-and-white pix future columns Bill Warner 423-C San VicenteBlvd Santa Monica CA 90402 Safety Preston Continued page 12 thehell Nicad batteries may well explode left shorted condition length time years ago shorted single 600 mAh cell few seconds burned fingers process unshorting Its amazing fast heat up during dead-short condition Maybe youve never personally experienced total loss control model blade separation prop glow engine started aid battery shorted battery pack perhaps turn next Have safe month John Preston 7012 Eltira Court Falls Churck VA 22042 SAFE FLYING IS NO ACCIDENT 64 Model Aviation R EALIS Nil SCALE ACCESSORIES WILLIAMS BROTHERS r NEW GLASS FILLED MOTOR MOUNTS Featuring 0405195LONG GLASS 1011225 FILLED NYLON 1519235 FOR STRENGTH 2025245 AND STABILITY 3035265 4045275Alignment 4045L300Lines 5060325 6070325Mounting Interchangeable Kraft OEM BULK INQUIRES INVITEDFlat bottom nose gear SEE YOUR DEALER OR DISTRIBUTOR DAVE BROWN PRODUCTS 4560 LAYHIGH RD HAMILTON OH 45013 ARCA COOt 513 738 1576 k ALUMINUM HUB WHEELS Finest Wheels Made Feature AUTHENTIC APPEARANCE & FAST ASSEMBLY Rugged construction aluminum Readily installed removed hub balloon type Equipped Built-in treaded tire retaining device LONG-LASTING SPONGE light weight *pat App for