Gary Shaw FIELD BOX FIREWORKS Arriving just time Fourth July response March MA request mail sparking letter veteran modeler Martin Gambill Sumter South Carolina Martins letter begins story about fellow modelers field-box disaster ends few good tips put use may prevent having similar experience Martin writes following John good friend guy got RC model aircraft just built painted new super-deluxe monster-sized field box enough room haul stuff flying field spent considerable time box finish better see model aircraft paint dried installed power panel battery etc box placed various stuff including tools etc box walked out room gone long smoke alarm sounded Upon return found new field box flames after putting fire out sifting through what left discovered cause fire Somehow metal tool found its way open connections back power panel shorted two contacts resulting battery fire have seen some power panels enclosures around wiring however some like just installed Tower Hobbies still open have seen some field boxes put power panel enclosure would prevent problem guys fly build own boxes expose panel inside box Since incident have always isolated back power panel battery connections possible contact metal tools objects current field box uses plexiglass panel Another possible solution would cover contacts blob silicone Zap-A-Dap A-Coo hot-melt glue 70 Model Aviation ty C0mes First 85 Twin Lakes Circle Atoka TN 38004 1N n S 4 Martin ended letter saying best ways prevent problem like simply buy power panels manufac turers make products modeler-proof incorporating circuit shielding personal note quickly checked panel after reading letter discovered too bought unshielded unit No problem though quick shot hot glue daughters glue gun Martin suggested back business usual letter brings up another point Im sure have pondered time another modelers feel have haul entire garage out field monster field box time go flying No matter Ive always seems boxes keep getting bigger bigger phenomenon has intrigued since day saw box big drove field slight resemblance old converted school busjustified hobby shop wheels Although think bus kind seems limiting factor field-box size weight much can carry guess some have everything own field several reasons Poor main tenance history sense security two quickly come mind people found club canand often doconduct major aircraft engine diagnostic surgery almost time go field have reached three simple conclusions through years observation 1 The modeler has everything along because has traveled very far contest conscious effort being made avoid Murphys Law acceptable 2 The modeler does proper equip ment malntenance after days flying thereby needing everything field expected repairs unacceptable typical 3 The modeler has gadget book feels since no else does can assistance requested school bus theory unusual norm Now before send hate mail telling conclusions way off base let get point have always emphasized get field find Murphy has followed enjoy little socializing tell few safety stories call day maintenance homework have probably forgotten will likely lead airplane demise bodily injury continue press Never take malntenance granted dont try substitute giant field box lack essential maintenance poor planning always home work come field prepared have full day fun Hungry Cub eats modelers toes Veteran modeler Fred C Scaggs Jr treasurer Kent County Aeromodelers Dover Delaware recently wrote describe accident Cub suddenly turned him consumed better part two toes right foot describes event follows started engine OS 70 Surpass 12 x 8 Master Airscrew prop stood up transmitter hand stepped right wing front leaned over adjust engine As leaned over accidentally hit throttle transmitter plane spun around prop hit foot killed engine transmitter stick just about two three seconds could have much worse Fred described damage toes pocketbook ego several stitches both toes cuts very deep. wore wooden shoe open toes six weeks cost approximately $800 now wonders wooden prop rather Master Airscrew using might have broken contact caused less damage Master Airscrew prop didnt break Fred adds following comments about avoid type accident First hold transmitter away body think about what youre doing Second go behind plane make adjustments Continued page 73 Its Never Been Easier Fuel Up Fuel Better n Fueling plane outside used hassle Thanks new Sullivan Fuel Filler Valve 750 clever little in-line fuel filling valve makes filling tank outside really easy 750 no covers open no fuel line lines disconnect unlike complicated filler valves no rubber seals crack wear out Better still Sullivan 750 compatible both gasoline glo fuels lets switch back forth between Thy doing other fuel valve Using brass fill tube instead machined fuel connector 750 about half price other fuel filler valves So youre sick tired over-priced coin- siItIiiii plicated fuel filler valves pick up Sullivan 7 PRODUCTS today Youll fuel better no time P0 Box 5166 Baltimore MD 21224 Getting Better Ideas Off Ground July1993 71 Sat etylShaw Continued pane 71 regard selecting prop might break upon contact less overall damage believe wood wins debate hands down However us select prop based expected performance breaking reliability during accident Because nature hobby some elements modeling inherently dangerous others Its manufacturers job design safe product its job use responsibly Take tip Fred After starting engine avoid becoming next statistic Make adjustments behind airplane Unexpected engine firing may cause injury April 93 column shared story sent helicopter pilot Robert Afflerback Willingboro New Jersey mentioned ran hand through prop after-mn oil using caused engine start flipping prop requested comments modelers have similar experiences received two excellent letters first Toby Hudon high school junior member Silent Electric Flyers Long Island SEFLI Toby indicated would like help stop few people losing finger two sharing following us being member SEFLI have never experienced problem because fly electric planes however today physics class studying adiabatic machines thermodynamics pistons effects pressure temperature teacher did demonstration similar what occurs glow engine flip prop applying after-mn oil What did put small piece cotton some alcohol oil test tube inserted long piston pressed down forcefully cotton immediately burst bright flame spray after-mn oil glow engine providing fuel prop spun quickly enough compression stroke may enough ignite start engine mnning Right money Toby As far Im concerned get class observa tion addition taking time share thoughts about 160000 potential finger-whackers Show magazine column teacher tell him appreciate both efforts second letter arrived recently James G Smith Erial New Jersey indicated written predecessor John Preston same subject some time ago James writes well bear him hell go over what told John again Most glows notably diesels will least fire enough oil gets up head raise compression ratio point enough heat produced initiate combustion problem can lessened using proper oil first place cant think spray-type oil can described proper problem oil enters motor mist begin makes already conducive spontaneous ignition Secondly modelers tend overoil gets oil up head thereby raising compression ratio point will fire Some oils Ive found unacceptable engine protectors subject inadvertent firing CRC WD-40 3-in-l Marvel Mystery Oil Most common after-mn oils especially spray types have major problem Over period time usually month tend dry out lose protection solution particular problem get some oil used lubricate commercial air-driven tools like air wrenches air-driven nailers staplers tools especially prone damage moisture oils tend disperse water Also tools may idle long periods time oil must hold up until next usage Air-tool oil can purchased large hardware stores Next some dos donts lubing engines flipping engine either NowYou Can Workout Any Kind Weather Stay Ttinci Experienced flyers know extreme temperature changes can make eventhe best push-rods expand contract usually means retrimming youre using new Sullivan Precision Gold-N-Rods Built withstand Just about anything Mother Nature can dish out Sullivan Precision has inner rod made carbon fiber composite thermally matched fiber glass wood Which means other rods expanding contracting Precision working like flexible arrow shaft So dont have trim time temper ature changes Tougher nylon push-rods Sullivan Precisions flexible depen le easy-to-install So fly over dealer check out new IIUuINii Sullivans Rain shine theyre ready go F PRODUCTS workPO Box 5166 Baltimore MD 21224 Getting Better Ideas Off Ground July1993 73 PRECISION MODEL PRODUCTS /ZZIj*d " Made U S BARSTOCK ALUMINUM SPINNERS Retail Part NoSizePrice TT-1502-B 1-1/2 $1495 TT-1752-B 1-3/4 1595 TT-2002-B 2 1895 TT-2252-B 2-1/4 1995 TT-2262-B 2-114 FAll . 2195 TT-2502-B 2-1122195 TT-2512-B FAt2395 TT-2752-B 2-3/42695 TT-2762-B 4 FAIl2895 TT-3002-B 33095 TT-301 2-B 3 FAI3295 TT-3252-B 3-1/44195 TT-3502-B 3-1/25495 TT-3752-B 3-3/46495 TT-4002-B 47995 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available Alt Sizes Add $300 Per Spinner Part NoSize TT-0140-A 1/4-28 TT-0147-A 1/4-28/7mm TT-0610-A6x 10mm TT-0710-A7x 10mm TT-0516-A5/16-24 TT-0518-A5/16-24/8mm TT-0810-AOx 10mm TT-0825-A8x 125mm TT-0375-A3/8-24 TT-0125-AlOx 125mm 3 Pieces Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 hand electric starter always assume will start flip rule ingrained full-scale pilot should also modelers well Whenever hand-prop Ercoupe assume ignition hoteven know key off Its unexpected firing causes injury Note said ft ring engine does actually have start run cause injury Dont over-oilAH have neutralize last dregs combustion coat moving parts oil protect especially bearings cylinder bore Dont add oil whatever type choose use flip prop intake ports down side worse engine upside down aids getting oil up head can fire off doesnt fire may get much oil up end up hydraulic lock engine cant turn over prop will come screeching halt happens two things will occur First hand flipping youll probably slice finger slides off trailing edge prop Second using electric starter something liable break likely conrod crankpin best procedure oiling engine fill venturi carburetor RC oil slowly turn engine over until oil spread throughout bottom end youre running muffler isnt Up AroundlAldrich Continued page 69 Masking tape wrapped around foam-tohandle juncture gives stable unit lasts quite cleaned properly means blotting dope out foam paper towel before has time dry ready apply another coat just soak foam thin dope mixture until soft again method really shines application first coats Often dope tends run through pores tissue silk covering leaving unsightly blob hanging inside surface Quickly squeeze excess dope foam holding surface upside down blot blob right back out through material Remember thinner dope smoother finish cant manage long trip Tucson Arizona April second annual Eastern States Vintage CL Champs will held September 18 19 Tifton Georgia Old-Time Stunt will fly Saturday Classic Stunt Sunday Contact Tom Dixon 3390 Woodrun Trail Marietta GA 30062 details some publications carry advertisements hard-to-find items much can except repeat process couple times have open exhaust control line free flight close exhaust port piston wet pistons surface oil give few slow flips piston down port open try get drop twono moreagainst bypass ports liner opposite exhaust flip over again few times slowly After parts should properly coated no injuries should have occurred important thing flip slowly control line racing guy slowest flip has slowest restarts Therefore flip slowly dont get hurt thing can add what James has provided preference after-mn oil An after-run oil feel protects engines very well hasnt eaten up silicon pump parts engines over last few years Mercon Dexron II Auto matic Transmission Fluid Well worth 98-cents-per-quart investment parting month let leave two notable quotables 1 Any system depends reliability unreliable 2 Death has proven 99% fatal laboratory rats Dont take chances Fourth July have fun field Keep mail club newsletters coming Until next month ision Aerobatic Model Pilots Association PAM PA Stunt News 1019 Creek Trail Anniston AL 36206 $151 year US $20 CanadalMexico $25/year other countries National Free Flight Society NFFS 19 Frederick Dr Newport News VA 23601 $15/year age 19 up $750/year age 18 under Model Aircraft Combat Association MACA MACA News PO Box 111 Jasonville IN 47438 $15/year US Canada Mexico $1 8/year $25/year other countries Society Antique Modelers SAM SAM Speaks 85 Bellevue Ave Belvedere CA 94920 $15/year US $25/year other countries airmail F Y 1Model Flight sourcebook everything flying models Dynamic Models 4922 Rochelle Irvine CA 92714-2941 $1995 plus $140 postpaid odel Aviation ox Weight 058 02 095 02 100 02 160 oz 150 02 190 02 170 oz 220 02 200 02 260 oz 250 oz 340 oz 470 oz 520 oz 570 02 PROP NUT ADAPTORS V RetailApprox PriceWeight $595.061 02 595 061 02 59506302 595082oz 595 02 59507602 595076oz 59507502 695 117 02 695115 02 Frequency Update See page 52
Edition: Model Aviation - 1993/07
Page Numbers: 70, 71, 73, 74
Gary Shaw FIELD BOX FIREWORKS Arriving just time Fourth July response March MA request mail sparking letter veteran modeler Martin Gambill Sumter South Carolina Martins letter begins story about fellow modelers field-box disaster ends few good tips put use may prevent having similar experience Martin writes following John good friend guy got RC model aircraft just built painted new super-deluxe monster-sized field box enough room haul stuff flying field spent considerable time box finish better see model aircraft paint dried installed power panel battery etc box placed various stuff including tools etc box walked out room gone long smoke alarm sounded Upon return found new field box flames after putting fire out sifting through what left discovered cause fire Somehow metal tool found its way open connections back power panel shorted two contacts resulting battery fire have seen some power panels enclosures around wiring however some like just installed Tower Hobbies still open have seen some field boxes put power panel enclosure would prevent problem guys fly build own boxes expose panel inside box Since incident have always isolated back power panel battery connections possible contact metal tools objects current field box uses plexiglass panel Another possible solution would cover contacts blob silicone Zap-A-Dap A-Coo hot-melt glue 70 Model Aviation ty C0mes First 85 Twin Lakes Circle Atoka TN 38004 1N n S 4 Martin ended letter saying best ways prevent problem like simply buy power panels manufac turers make products modeler-proof incorporating circuit shielding personal note quickly checked panel after reading letter discovered too bought unshielded unit No problem though quick shot hot glue daughters glue gun Martin suggested back business usual letter brings up another point Im sure have pondered time another modelers feel have haul entire garage out field monster field box time go flying No matter Ive always seems boxes keep getting bigger bigger phenomenon has intrigued since day saw box big drove field slight resemblance old converted school busjustified hobby shop wheels Although think bus kind seems limiting factor field-box size weight much can carry guess some have everything own field several reasons Poor main tenance history sense security two quickly come mind people found club canand often doconduct major aircraft engine diagnostic surgery almost time go field have reached three simple conclusions through years observation 1 The modeler has everything along because has traveled very far contest conscious effort being made avoid Murphys Law acceptable 2 The modeler does proper equip ment malntenance after days flying thereby needing everything field expected repairs unacceptable typical 3 The modeler has gadget book feels since no else does can assistance requested school bus theory unusual norm Now before send hate mail telling conclusions way off base let get point have always emphasized get field find Murphy has followed enjoy little socializing tell few safety stories call day maintenance homework have probably forgotten will likely lead airplane demise bodily injury continue press Never take malntenance granted dont try substitute giant field box lack essential maintenance poor planning always home work come field prepared have full day fun Hungry Cub eats modelers toes Veteran modeler Fred C Scaggs Jr treasurer Kent County Aeromodelers Dover Delaware recently wrote describe accident Cub suddenly turned him consumed better part two toes right foot describes event follows started engine OS 70 Surpass 12 x 8 Master Airscrew prop stood up transmitter hand stepped right wing front leaned over adjust engine As leaned over accidentally hit throttle transmitter plane spun around prop hit foot killed engine transmitter stick just about two three seconds could have much worse Fred described damage toes pocketbook ego several stitches both toes cuts very deep. wore wooden shoe open toes six weeks cost approximately $800 now wonders wooden prop rather Master Airscrew using might have broken contact caused less damage Master Airscrew prop didnt break Fred adds following comments about avoid type accident First hold transmitter away body think about what youre doing Second go behind plane make adjustments Continued page 73 Its Never Been Easier Fuel Up Fuel Better n Fueling plane outside used hassle Thanks new Sullivan Fuel Filler Valve 750 clever little in-line fuel filling valve makes filling tank outside really easy 750 no covers open no fuel line lines disconnect unlike complicated filler valves no rubber seals crack wear out Better still Sullivan 750 compatible both gasoline glo fuels lets switch back forth between Thy doing other fuel valve Using brass fill tube instead machined fuel connector 750 about half price other fuel filler valves So youre sick tired over-priced coin- siItIiiii plicated fuel filler valves pick up Sullivan 7 PRODUCTS today Youll fuel better no time P0 Box 5166 Baltimore MD 21224 Getting Better Ideas Off Ground July1993 71 Sat etylShaw Continued pane 71 regard selecting prop might break upon contact less overall damage believe wood wins debate hands down However us select prop based expected performance breaking reliability during accident Because nature hobby some elements modeling inherently dangerous others Its manufacturers job design safe product its job use responsibly Take tip Fred After starting engine avoid becoming next statistic Make adjustments behind airplane Unexpected engine firing may cause injury April 93 column shared story sent helicopter pilot Robert Afflerback Willingboro New Jersey mentioned ran hand through prop after-mn oil using caused engine start flipping prop requested comments modelers have similar experiences received two excellent letters first Toby Hudon high school junior member Silent Electric Flyers Long Island SEFLI Toby indicated would like help stop few people losing finger two sharing following us being member SEFLI have never experienced problem because fly electric planes however today physics class studying adiabatic machines thermodynamics pistons effects pressure temperature teacher did demonstration similar what occurs glow engine flip prop applying after-mn oil What did put small piece cotton some alcohol oil test tube inserted long piston pressed down forcefully cotton immediately burst bright flame spray after-mn oil glow engine providing fuel prop spun quickly enough compression stroke may enough ignite start engine mnning Right money Toby As far Im concerned get class observa tion addition taking time share thoughts about 160000 potential finger-whackers Show magazine column teacher tell him appreciate both efforts second letter arrived recently James G Smith Erial New Jersey indicated written predecessor John Preston same subject some time ago James writes well bear him hell go over what told John again Most glows notably diesels will least fire enough oil gets up head raise compression ratio point enough heat produced initiate combustion problem can lessened using proper oil first place cant think spray-type oil can described proper problem oil enters motor mist begin makes already conducive spontaneous ignition Secondly modelers tend overoil gets oil up head thereby raising compression ratio point will fire Some oils Ive found unacceptable engine protectors subject inadvertent firing CRC WD-40 3-in-l Marvel Mystery Oil Most common after-mn oils especially spray types have major problem Over period time usually month tend dry out lose protection solution particular problem get some oil used lubricate commercial air-driven tools like air wrenches air-driven nailers staplers tools especially prone damage moisture oils tend disperse water Also tools may idle long periods time oil must hold up until next usage Air-tool oil can purchased large hardware stores Next some dos donts lubing engines flipping engine either NowYou Can Workout Any Kind Weather Stay Ttinci Experienced flyers know extreme temperature changes can make eventhe best push-rods expand contract usually means retrimming youre using new Sullivan Precision Gold-N-Rods Built withstand Just about anything Mother Nature can dish out Sullivan Precision has inner rod made carbon fiber composite thermally matched fiber glass wood Which means other rods expanding contracting Precision working like flexible arrow shaft So dont have trim time temper ature changes Tougher nylon push-rods Sullivan Precisions flexible depen le easy-to-install So fly over dealer check out new IIUuINii Sullivans Rain shine theyre ready go F PRODUCTS workPO Box 5166 Baltimore MD 21224 Getting Better Ideas Off Ground July1993 73 PRECISION MODEL PRODUCTS /ZZIj*d " Made U S BARSTOCK ALUMINUM SPINNERS Retail Part NoSizePrice TT-1502-B 1-1/2 $1495 TT-1752-B 1-3/4 1595 TT-2002-B 2 1895 TT-2252-B 2-1/4 1995 TT-2262-B 2-114 FAll . 2195 TT-2502-B 2-1122195 TT-2512-B FAt2395 TT-2752-B 2-3/42695 TT-2762-B 4 FAIl2895 TT-3002-B 33095 TT-301 2-B 3 FAI3295 TT-3252-B 3-1/44195 TT-3502-B 3-1/25495 TT-3752-B 3-3/46495 TT-4002-B 47995 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available Alt Sizes Add $300 Per Spinner Part NoSize TT-0140-A 1/4-28 TT-0147-A 1/4-28/7mm TT-0610-A6x 10mm TT-0710-A7x 10mm TT-0516-A5/16-24 TT-0518-A5/16-24/8mm TT-0810-AOx 10mm TT-0825-A8x 125mm TT-0375-A3/8-24 TT-0125-AlOx 125mm 3 Pieces Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 hand electric starter always assume will start flip rule ingrained full-scale pilot should also modelers well Whenever hand-prop Ercoupe assume ignition hoteven know key off Its unexpected firing causes injury Note said ft ring engine does actually have start run cause injury Dont over-oilAH have neutralize last dregs combustion coat moving parts oil protect especially bearings cylinder bore Dont add oil whatever type choose use flip prop intake ports down side worse engine upside down aids getting oil up head can fire off doesnt fire may get much oil up end up hydraulic lock engine cant turn over prop will come screeching halt happens two things will occur First hand flipping youll probably slice finger slides off trailing edge prop Second using electric starter something liable break likely conrod crankpin best procedure oiling engine fill venturi carburetor RC oil slowly turn engine over until oil spread throughout bottom end youre running muffler isnt Up AroundlAldrich Continued page 69 Masking tape wrapped around foam-tohandle juncture gives stable unit lasts quite cleaned properly means blotting dope out foam paper towel before has time dry ready apply another coat just soak foam thin dope mixture until soft again method really shines application first coats Often dope tends run through pores tissue silk covering leaving unsightly blob hanging inside surface Quickly squeeze excess dope foam holding surface upside down blot blob right back out through material Remember thinner dope smoother finish cant manage long trip Tucson Arizona April second annual Eastern States Vintage CL Champs will held September 18 19 Tifton Georgia Old-Time Stunt will fly Saturday Classic Stunt Sunday Contact Tom Dixon 3390 Woodrun Trail Marietta GA 30062 details some publications carry advertisements hard-to-find items much can except repeat process couple times have open exhaust control line free flight close exhaust port piston wet pistons surface oil give few slow flips piston down port open try get drop twono moreagainst bypass ports liner opposite exhaust flip over again few times slowly After parts should properly coated no injuries should have occurred important thing flip slowly control line racing guy slowest flip has slowest restarts Therefore flip slowly dont get hurt thing can add what James has provided preference after-mn oil An after-run oil feel protects engines very well hasnt eaten up silicon pump parts engines over last few years Mercon Dexron II Auto matic Transmission Fluid Well worth 98-cents-per-quart investment parting month let leave two notable quotables 1 Any system depends reliability unreliable 2 Death has proven 99% fatal laboratory rats Dont take chances Fourth July have fun field Keep mail club newsletters coming Until next month ision Aerobatic Model Pilots Association PAM PA Stunt News 1019 Creek Trail Anniston AL 36206 $151 year US $20 CanadalMexico $25/year other countries National Free Flight Society NFFS 19 Frederick Dr Newport News VA 23601 $15/year age 19 up $750/year age 18 under Model Aircraft Combat Association MACA MACA News PO Box 111 Jasonville IN 47438 $15/year US Canada Mexico $1 8/year $25/year other countries Society Antique Modelers SAM SAM Speaks 85 Bellevue Ave Belvedere CA 94920 $15/year US $25/year other countries airmail F Y 1Model Flight sourcebook everything flying models Dynamic Models 4922 Rochelle Irvine CA 92714-2941 $1995 plus $140 postpaid odel Aviation ox Weight 058 02 095 02 100 02 160 oz 150 02 190 02 170 oz 220 02 200 02 260 oz 250 oz 340 oz 470 oz 520 oz 570 02 PROP NUT ADAPTORS V RetailApprox PriceWeight $595.061 02 595 061 02 59506302 595082oz 595 02 59507602 595076oz 59507502 695 117 02 695115 02 Frequency Update See page 52
Edition: Model Aviation - 1993/07
Page Numbers: 70, 71, 73, 74
Gary Shaw FIELD BOX FIREWORKS Arriving just time Fourth July response March MA request mail sparking letter veteran modeler Martin Gambill Sumter South Carolina Martins letter begins story about fellow modelers field-box disaster ends few good tips put use may prevent having similar experience Martin writes following John good friend guy got RC model aircraft just built painted new super-deluxe monster-sized field box enough room haul stuff flying field spent considerable time box finish better see model aircraft paint dried installed power panel battery etc box placed various stuff including tools etc box walked out room gone long smoke alarm sounded Upon return found new field box flames after putting fire out sifting through what left discovered cause fire Somehow metal tool found its way open connections back power panel shorted two contacts resulting battery fire have seen some power panels enclosures around wiring however some like just installed Tower Hobbies still open have seen some field boxes put power panel enclosure would prevent problem guys fly build own boxes expose panel inside box Since incident have always isolated back power panel battery connections possible contact metal tools objects current field box uses plexiglass panel Another possible solution would cover contacts blob silicone Zap-A-Dap A-Coo hot-melt glue 70 Model Aviation ty C0mes First 85 Twin Lakes Circle Atoka TN 38004 1N n S 4 Martin ended letter saying best ways prevent problem like simply buy power panels manufac turers make products modeler-proof incorporating circuit shielding personal note quickly checked panel after reading letter discovered too bought unshielded unit No problem though quick shot hot glue daughters glue gun Martin suggested back business usual letter brings up another point Im sure have pondered time another modelers feel have haul entire garage out field monster field box time go flying No matter Ive always seems boxes keep getting bigger bigger phenomenon has intrigued since day saw box big drove field slight resemblance old converted school busjustified hobby shop wheels Although think bus kind seems limiting factor field-box size weight much can carry guess some have everything own field several reasons Poor main tenance history sense security two quickly come mind people found club canand often doconduct major aircraft engine diagnostic surgery almost time go field have reached three simple conclusions through years observation 1 The modeler has everything along because has traveled very far contest conscious effort being made avoid Murphys Law acceptable 2 The modeler does proper equip ment malntenance after days flying thereby needing everything field expected repairs unacceptable typical 3 The modeler has gadget book feels since no else does can assistance requested school bus theory unusual norm Now before send hate mail telling conclusions way off base let get point have always emphasized get field find Murphy has followed enjoy little socializing tell few safety stories call day maintenance homework have probably forgotten will likely lead airplane demise bodily injury continue press Never take malntenance granted dont try substitute giant field box lack essential maintenance poor planning always home work come field prepared have full day fun Hungry Cub eats modelers toes Veteran modeler Fred C Scaggs Jr treasurer Kent County Aeromodelers Dover Delaware recently wrote describe accident Cub suddenly turned him consumed better part two toes right foot describes event follows started engine OS 70 Surpass 12 x 8 Master Airscrew prop stood up transmitter hand stepped right wing front leaned over adjust engine As leaned over accidentally hit throttle transmitter plane spun around prop hit foot killed engine transmitter stick just about two three seconds could have much worse Fred described damage toes pocketbook ego several stitches both toes cuts very deep. wore wooden shoe open toes six weeks cost approximately $800 now wonders wooden prop rather Master Airscrew using might have broken contact caused less damage Master Airscrew prop didnt break Fred adds following comments about avoid type accident First hold transmitter away body think about what youre doing Second go behind plane make adjustments Continued page 73 Its Never Been Easier Fuel Up Fuel Better n Fueling plane outside used hassle Thanks new Sullivan Fuel Filler Valve 750 clever little in-line fuel filling valve makes filling tank outside really easy 750 no covers open no fuel line lines disconnect unlike complicated filler valves no rubber seals crack wear out Better still Sullivan 750 compatible both gasoline glo fuels lets switch back forth between Thy doing other fuel valve Using brass fill tube instead machined fuel connector 750 about half price other fuel filler valves So youre sick tired over-priced coin- siItIiiii plicated fuel filler valves pick up Sullivan 7 PRODUCTS today Youll fuel better no time P0 Box 5166 Baltimore MD 21224 Getting Better Ideas Off Ground July1993 71 Sat etylShaw Continued pane 71 regard selecting prop might break upon contact less overall damage believe wood wins debate hands down However us select prop based expected performance breaking reliability during accident Because nature hobby some elements modeling inherently dangerous others Its manufacturers job design safe product its job use responsibly Take tip Fred After starting engine avoid becoming next statistic Make adjustments behind airplane Unexpected engine firing may cause injury April 93 column shared story sent helicopter pilot Robert Afflerback Willingboro New Jersey mentioned ran hand through prop after-mn oil using caused engine start flipping prop requested comments modelers have similar experiences received two excellent letters first Toby Hudon high school junior member Silent Electric Flyers Long Island SEFLI Toby indicated would like help stop few people losing finger two sharing following us being member SEFLI have never experienced problem because fly electric planes however today physics class studying adiabatic machines thermodynamics pistons effects pressure temperature teacher did demonstration similar what occurs glow engine flip prop applying after-mn oil What did put small piece cotton some alcohol oil test tube inserted long piston pressed down forcefully cotton immediately burst bright flame spray after-mn oil glow engine providing fuel prop spun quickly enough compression stroke may enough ignite start engine mnning Right money Toby As far Im concerned get class observa tion addition taking time share thoughts about 160000 potential finger-whackers Show magazine column teacher tell him appreciate both efforts second letter arrived recently James G Smith Erial New Jersey indicated written predecessor John Preston same subject some time ago James writes well bear him hell go over what told John again Most glows notably diesels will least fire enough oil gets up head raise compression ratio point enough heat produced initiate combustion problem can lessened using proper oil first place cant think spray-type oil can described proper problem oil enters motor mist begin makes already conducive spontaneous ignition Secondly modelers tend overoil gets oil up head thereby raising compression ratio point will fire Some oils Ive found unacceptable engine protectors subject inadvertent firing CRC WD-40 3-in-l Marvel Mystery Oil Most common after-mn oils especially spray types have major problem Over period time usually month tend dry out lose protection solution particular problem get some oil used lubricate commercial air-driven tools like air wrenches air-driven nailers staplers tools especially prone damage moisture oils tend disperse water Also tools may idle long periods time oil must hold up until next usage Air-tool oil can purchased large hardware stores Next some dos donts lubing engines flipping engine either NowYou Can Workout Any Kind Weather Stay Ttinci Experienced flyers know extreme temperature changes can make eventhe best push-rods expand contract usually means retrimming youre using new Sullivan Precision Gold-N-Rods Built withstand Just about anything Mother Nature can dish out Sullivan Precision has inner rod made carbon fiber composite thermally matched fiber glass wood Which means other rods expanding contracting Precision working like flexible arrow shaft So dont have trim time temper ature changes Tougher nylon push-rods Sullivan Precisions flexible depen le easy-to-install So fly over dealer check out new IIUuINii Sullivans Rain shine theyre ready go F PRODUCTS workPO Box 5166 Baltimore MD 21224 Getting Better Ideas Off Ground July1993 73 PRECISION MODEL PRODUCTS /ZZIj*d " Made U S BARSTOCK ALUMINUM SPINNERS Retail Part NoSizePrice TT-1502-B 1-1/2 $1495 TT-1752-B 1-3/4 1595 TT-2002-B 2 1895 TT-2252-B 2-1/4 1995 TT-2262-B 2-114 FAll . 2195 TT-2502-B 2-1122195 TT-2512-B FAt2395 TT-2752-B 2-3/42695 TT-2762-B 4 FAIl2895 TT-3002-B 33095 TT-301 2-B 3 FAI3295 TT-3252-B 3-1/44195 TT-3502-B 3-1/25495 TT-3752-B 3-3/46495 TT-4002-B 47995 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available Alt Sizes Add $300 Per Spinner Part NoSize TT-0140-A 1/4-28 TT-0147-A 1/4-28/7mm TT-0610-A6x 10mm TT-0710-A7x 10mm TT-0516-A5/16-24 TT-0518-A5/16-24/8mm TT-0810-AOx 10mm TT-0825-A8x 125mm TT-0375-A3/8-24 TT-0125-AlOx 125mm 3 Pieces Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 hand electric starter always assume will start flip rule ingrained full-scale pilot should also modelers well Whenever hand-prop Ercoupe assume ignition hoteven know key off Its unexpected firing causes injury Note said ft ring engine does actually have start run cause injury Dont over-oilAH have neutralize last dregs combustion coat moving parts oil protect especially bearings cylinder bore Dont add oil whatever type choose use flip prop intake ports down side worse engine upside down aids getting oil up head can fire off doesnt fire may get much oil up end up hydraulic lock engine cant turn over prop will come screeching halt happens two things will occur First hand flipping youll probably slice finger slides off trailing edge prop Second using electric starter something liable break likely conrod crankpin best procedure oiling engine fill venturi carburetor RC oil slowly turn engine over until oil spread throughout bottom end youre running muffler isnt Up AroundlAldrich Continued page 69 Masking tape wrapped around foam-tohandle juncture gives stable unit lasts quite cleaned properly means blotting dope out foam paper towel before has time dry ready apply another coat just soak foam thin dope mixture until soft again method really shines application first coats Often dope tends run through pores tissue silk covering leaving unsightly blob hanging inside surface Quickly squeeze excess dope foam holding surface upside down blot blob right back out through material Remember thinner dope smoother finish cant manage long trip Tucson Arizona April second annual Eastern States Vintage CL Champs will held September 18 19 Tifton Georgia Old-Time Stunt will fly Saturday Classic Stunt Sunday Contact Tom Dixon 3390 Woodrun Trail Marietta GA 30062 details some publications carry advertisements hard-to-find items much can except repeat process couple times have open exhaust control line free flight close exhaust port piston wet pistons surface oil give few slow flips piston down port open try get drop twono moreagainst bypass ports liner opposite exhaust flip over again few times slowly After parts should properly coated no injuries should have occurred important thing flip slowly control line racing guy slowest flip has slowest restarts Therefore flip slowly dont get hurt thing can add what James has provided preference after-mn oil An after-run oil feel protects engines very well hasnt eaten up silicon pump parts engines over last few years Mercon Dexron II Auto matic Transmission Fluid Well worth 98-cents-per-quart investment parting month let leave two notable quotables 1 Any system depends reliability unreliable 2 Death has proven 99% fatal laboratory rats Dont take chances Fourth July have fun field Keep mail club newsletters coming Until next month ision Aerobatic Model Pilots Association PAM PA Stunt News 1019 Creek Trail Anniston AL 36206 $151 year US $20 CanadalMexico $25/year other countries National Free Flight Society NFFS 19 Frederick Dr Newport News VA 23601 $15/year age 19 up $750/year age 18 under Model Aircraft Combat Association MACA MACA News PO Box 111 Jasonville IN 47438 $15/year US Canada Mexico $1 8/year $25/year other countries Society Antique Modelers SAM SAM Speaks 85 Bellevue Ave Belvedere CA 94920 $15/year US $25/year other countries airmail F Y 1Model Flight sourcebook everything flying models Dynamic Models 4922 Rochelle Irvine CA 92714-2941 $1995 plus $140 postpaid odel Aviation ox Weight 058 02 095 02 100 02 160 oz 150 02 190 02 170 oz 220 02 200 02 260 oz 250 oz 340 oz 470 oz 520 oz 570 02 PROP NUT ADAPTORS V RetailApprox PriceWeight $595.061 02 595 061 02 59506302 595082oz 595 02 59507602 595076oz 59507502 695 117 02 695115 02 Frequency Update See page 52
Edition: Model Aviation - 1993/07
Page Numbers: 70, 71, 73, 74
Gary Shaw FIELD BOX FIREWORKS Arriving just time Fourth July response March MA request mail sparking letter veteran modeler Martin Gambill Sumter South Carolina Martins letter begins story about fellow modelers field-box disaster ends few good tips put use may prevent having similar experience Martin writes following John good friend guy got RC model aircraft just built painted new super-deluxe monster-sized field box enough room haul stuff flying field spent considerable time box finish better see model aircraft paint dried installed power panel battery etc box placed various stuff including tools etc box walked out room gone long smoke alarm sounded Upon return found new field box flames after putting fire out sifting through what left discovered cause fire Somehow metal tool found its way open connections back power panel shorted two contacts resulting battery fire have seen some power panels enclosures around wiring however some like just installed Tower Hobbies still open have seen some field boxes put power panel enclosure would prevent problem guys fly build own boxes expose panel inside box Since incident have always isolated back power panel battery connections possible contact metal tools objects current field box uses plexiglass panel Another possible solution would cover contacts blob silicone Zap-A-Dap A-Coo hot-melt glue 70 Model Aviation ty C0mes First 85 Twin Lakes Circle Atoka TN 38004 1N n S 4 Martin ended letter saying best ways prevent problem like simply buy power panels manufac turers make products modeler-proof incorporating circuit shielding personal note quickly checked panel after reading letter discovered too bought unshielded unit No problem though quick shot hot glue daughters glue gun Martin suggested back business usual letter brings up another point Im sure have pondered time another modelers feel have haul entire garage out field monster field box time go flying No matter Ive always seems boxes keep getting bigger bigger phenomenon has intrigued since day saw box big drove field slight resemblance old converted school busjustified hobby shop wheels Although think bus kind seems limiting factor field-box size weight much can carry guess some have everything own field several reasons Poor main tenance history sense security two quickly come mind people found club canand often doconduct major aircraft engine diagnostic surgery almost time go field have reached three simple conclusions through years observation 1 The modeler has everything along because has traveled very far contest conscious effort being made avoid Murphys Law acceptable 2 The modeler does proper equip ment malntenance after days flying thereby needing everything field expected repairs unacceptable typical 3 The modeler has gadget book feels since no else does can assistance requested school bus theory unusual norm Now before send hate mail telling conclusions way off base let get point have always emphasized get field find Murphy has followed enjoy little socializing tell few safety stories call day maintenance homework have probably forgotten will likely lead airplane demise bodily injury continue press Never take malntenance granted dont try substitute giant field box lack essential maintenance poor planning always home work come field prepared have full day fun Hungry Cub eats modelers toes Veteran modeler Fred C Scaggs Jr treasurer Kent County Aeromodelers Dover Delaware recently wrote describe accident Cub suddenly turned him consumed better part two toes right foot describes event follows started engine OS 70 Surpass 12 x 8 Master Airscrew prop stood up transmitter hand stepped right wing front leaned over adjust engine As leaned over accidentally hit throttle transmitter plane spun around prop hit foot killed engine transmitter stick just about two three seconds could have much worse Fred described damage toes pocketbook ego several stitches both toes cuts very deep. wore wooden shoe open toes six weeks cost approximately $800 now wonders wooden prop rather Master Airscrew using might have broken contact caused less damage Master Airscrew prop didnt break Fred adds following comments about avoid type accident First hold transmitter away body think about what youre doing Second go behind plane make adjustments Continued page 73 Its Never Been Easier Fuel Up Fuel Better n Fueling plane outside used hassle Thanks new Sullivan Fuel Filler Valve 750 clever little in-line fuel filling valve makes filling tank outside really easy 750 no covers open no fuel line lines disconnect unlike complicated filler valves no rubber seals crack wear out Better still Sullivan 750 compatible both gasoline glo fuels lets switch back forth between Thy doing other fuel valve Using brass fill tube instead machined fuel connector 750 about half price other fuel filler valves So youre sick tired over-priced coin- siItIiiii plicated fuel filler valves pick up Sullivan 7 PRODUCTS today Youll fuel better no time P0 Box 5166 Baltimore MD 21224 Getting Better Ideas Off Ground July1993 71 Sat etylShaw Continued pane 71 regard selecting prop might break upon contact less overall damage believe wood wins debate hands down However us select prop based expected performance breaking reliability during accident Because nature hobby some elements modeling inherently dangerous others Its manufacturers job design safe product its job use responsibly Take tip Fred After starting engine avoid becoming next statistic Make adjustments behind airplane Unexpected engine firing may cause injury April 93 column shared story sent helicopter pilot Robert Afflerback Willingboro New Jersey mentioned ran hand through prop after-mn oil using caused engine start flipping prop requested comments modelers have similar experiences received two excellent letters first Toby Hudon high school junior member Silent Electric Flyers Long Island SEFLI Toby indicated would like help stop few people losing finger two sharing following us being member SEFLI have never experienced problem because fly electric planes however today physics class studying adiabatic machines thermodynamics pistons effects pressure temperature teacher did demonstration similar what occurs glow engine flip prop applying after-mn oil What did put small piece cotton some alcohol oil test tube inserted long piston pressed down forcefully cotton immediately burst bright flame spray after-mn oil glow engine providing fuel prop spun quickly enough compression stroke may enough ignite start engine mnning Right money Toby As far Im concerned get class observa tion addition taking time share thoughts about 160000 potential finger-whackers Show magazine column teacher tell him appreciate both efforts second letter arrived recently James G Smith Erial New Jersey indicated written predecessor John Preston same subject some time ago James writes well bear him hell go over what told John again Most glows notably diesels will least fire enough oil gets up head raise compression ratio point enough heat produced initiate combustion problem can lessened using proper oil first place cant think spray-type oil can described proper problem oil enters motor mist begin makes already conducive spontaneous ignition Secondly modelers tend overoil gets oil up head thereby raising compression ratio point will fire Some oils Ive found unacceptable engine protectors subject inadvertent firing CRC WD-40 3-in-l Marvel Mystery Oil Most common after-mn oils especially spray types have major problem Over period time usually month tend dry out lose protection solution particular problem get some oil used lubricate commercial air-driven tools like air wrenches air-driven nailers staplers tools especially prone damage moisture oils tend disperse water Also tools may idle long periods time oil must hold up until next usage Air-tool oil can purchased large hardware stores Next some dos donts lubing engines flipping engine either NowYou Can Workout Any Kind Weather Stay Ttinci Experienced flyers know extreme temperature changes can make eventhe best push-rods expand contract usually means retrimming youre using new Sullivan Precision Gold-N-Rods Built withstand Just about anything Mother Nature can dish out Sullivan Precision has inner rod made carbon fiber composite thermally matched fiber glass wood Which means other rods expanding contracting Precision working like flexible arrow shaft So dont have trim time temper ature changes Tougher nylon push-rods Sullivan Precisions flexible depen le easy-to-install So fly over dealer check out new IIUuINii Sullivans Rain shine theyre ready go F PRODUCTS workPO Box 5166 Baltimore MD 21224 Getting Better Ideas Off Ground July1993 73 PRECISION MODEL PRODUCTS /ZZIj*d " Made U S BARSTOCK ALUMINUM SPINNERS Retail Part NoSizePrice TT-1502-B 1-1/2 $1495 TT-1752-B 1-3/4 1595 TT-2002-B 2 1895 TT-2252-B 2-1/4 1995 TT-2262-B 2-114 FAll . 2195 TT-2502-B 2-1122195 TT-2512-B FAt2395 TT-2752-B 2-3/42695 TT-2762-B 4 FAIl2895 TT-3002-B 33095 TT-301 2-B 3 FAI3295 TT-3252-B 3-1/44195 TT-3502-B 3-1/25495 TT-3752-B 3-3/46495 TT-4002-B 47995 3 Pieces Cone Back Plate Retainer Screw Note 3 4 Blade Spinners Available Alt Sizes Add $300 Per Spinner Part NoSize TT-0140-A 1/4-28 TT-0147-A 1/4-28/7mm TT-0610-A6x 10mm TT-0710-A7x 10mm TT-0516-A5/16-24 TT-0518-A5/16-24/8mm TT-0810-AOx 10mm TT-0825-A8x 125mm TT-0375-A3/8-24 TT-0125-AlOx 125mm 3 Pieces Nut Washer Machined Bushing Add $350 Shipping Handling Prices subject change notice ROMCO MFG INC OX 836 SOUTH HOUSTON TEXAS 77587 713 943-1867 hand electric starter always assume will start flip rule ingrained full-scale pilot should also modelers well Whenever hand-prop Ercoupe assume ignition hoteven know key off Its unexpected firing causes injury Note said ft ring engine does actually have start run cause injury Dont over-oilAH have neutralize last dregs combustion coat moving parts oil protect especially bearings cylinder bore Dont add oil whatever type choose use flip prop intake ports down side worse engine upside down aids getting oil up head can fire off doesnt fire may get much oil up end up hydraulic lock engine cant turn over prop will come screeching halt happens two things will occur First hand flipping youll probably slice finger slides off trailing edge prop Second using electric starter something liable break likely conrod crankpin best procedure oiling engine fill venturi carburetor RC oil slowly turn engine over until oil spread throughout bottom end youre running muffler isnt Up AroundlAldrich Continued page 69 Masking tape wrapped around foam-tohandle juncture gives stable unit lasts quite cleaned properly means blotting dope out foam paper towel before has time dry ready apply another coat just soak foam thin dope mixture until soft again method really shines application first coats Often dope tends run through pores tissue silk covering leaving unsightly blob hanging inside surface Quickly squeeze excess dope foam holding surface upside down blot blob right back out through material Remember thinner dope smoother finish cant manage long trip Tucson Arizona April second annual Eastern States Vintage CL Champs will held September 18 19 Tifton Georgia Old-Time Stunt will fly Saturday Classic Stunt Sunday Contact Tom Dixon 3390 Woodrun Trail Marietta GA 30062 details some publications carry advertisements hard-to-find items much can except repeat process couple times have open exhaust control line free flight close exhaust port piston wet pistons surface oil give few slow flips piston down port open try get drop twono moreagainst bypass ports liner opposite exhaust flip over again few times slowly After parts should properly coated no injuries should have occurred important thing flip slowly control line racing guy slowest flip has slowest restarts Therefore flip slowly dont get hurt thing can add what James has provided preference after-mn oil An after-run oil feel protects engines very well hasnt eaten up silicon pump parts engines over last few years Mercon Dexron II Auto matic Transmission Fluid Well worth 98-cents-per-quart investment parting month let leave two notable quotables 1 Any system depends reliability unreliable 2 Death has proven 99% fatal laboratory rats Dont take chances Fourth July have fun field Keep mail club newsletters coming Until next month ision Aerobatic Model Pilots Association PAM PA Stunt News 1019 Creek Trail Anniston AL 36206 $151 year US $20 CanadalMexico $25/year other countries National Free Flight Society NFFS 19 Frederick Dr Newport News VA 23601 $15/year age 19 up $750/year age 18 under Model Aircraft Combat Association MACA MACA News PO Box 111 Jasonville IN 47438 $15/year US Canada Mexico $1 8/year $25/year other countries Society Antique Modelers SAM SAM Speaks 85 Bellevue Ave Belvedere CA 94920 $15/year US $25/year other countries airmail F Y 1Model Flight sourcebook everything flying models Dynamic Models 4922 Rochelle Irvine CA 92714-2941 $1995 plus $140 postpaid odel Aviation ox Weight 058 02 095 02 100 02 160 oz 150 02 190 02 170 oz 220 02 200 02 260 oz 250 oz 340 oz 470 oz 520 oz 570 02 PROP NUT ADAPTORS V RetailApprox PriceWeight $595.061 02 595 061 02 59506302 595082oz 595 02 59507602 595076oz 59507502 695 117 02 695115 02 Frequency Update See page 52