when can make own takes few old parts some hardware little know-how U Joel Hamm COMPRESSED AIR modelers must sprays dries dusts cleans What cleans best piggy banks Hobby compressors suitable airbrushes start around hundred dollars Larger units adaptable other household chores quickly jump three four times price Modelers talent scrounging ____a flair innovation includes modelers can assemble high-pressure high-volume air delivery system free out bits pieces local dump might already cluttering up basement workshop complete parts list included appendix components fall three categories Schematic homemade air compressor Recycle motor salvage compressor head convert single-cylinder gasoline engine raid junk boxand youre business 188 Model Aviation costly air compressor Made motor drive belt compressor head assorted valves tubes hardware air compressor provides volume pressure youll need 7 FWiring Circuit1 IIII IIBlow Gun I7 ValveAir Brush Filter PCVIj IPressureGauge \ Switch II ii Dryer/ 002 Tank Adapter Filter Reservoir Tank 0 authors workbench console scrap-box air compressor features remote power switch pressure gauge airbrush outlet blowgun Opens DownwardCloses Downward Solder Joint hitae Port EngineElbow Fitting Plug Eshaust Valve Guide motor including drive pulleys belt Compressor head large box valves tubes clamps fittings assorted hardware Any motor salvaged washing machine dishwasher will commonly range eighth third horsepower can go up half-horsepower contraption powered one-sixth horsepower clothes dryer motor Reduced through belt drive 14 ratio has never wanted power compressor head may seem like exotic unlikely treasure find lying scrap heap entirely possible come upon old refrigeration unit Just useful purposes however far easier find discarded single-cylinder gasoline engine lawn mower tiller cant find local junkyard can always find large pile free taking outside back door small-engine repair shop have choice select horizontalshaft engine since its upright posture makes mounting easier Diagram left shows convert lawn mower engine compressor head Camshaft tappets left place Valves drawn opposite sides piston clarity Diagram above shows type filterldryer chamber made plastic drain pipe fittings Water trap consists foam rubber fiberglass filters CaCI dessicant crystats Assembly instructions Because almost infinite possible combinations parts general assembly instructions can given precise connection fastening methods left modelers ingenuity first step select suitable base Since wood easiest work chose three-foot section 2 x 12 added rubber feet dampen noise vibration Mount motor base giving some provision sideways adjustment tensioning drive belt motor lacks mounting bracket can secured base lengths perforated metal pipe strap major task converting engine takes air puts out powerinto compressor tricky because compressor takes power produce pressurized air transformatton ts performed removing engine valves plugging resultant holes installing check valve system produce one-way aifflow Strip away shrouds along carburetor magneto flywheel leaving mber 1992 189 Threaded End Cap4 Plastic Drain Pipe Foam FiberglassCaCi besiccant Granules modelers can find parts theyll need attic basement Engine repair shops local dump sources discarded singlecylinder gasoline engines PCV valve copper elbow fitting screws exhaust port function outflow check valve Close-up pressure switch Large nut top center adjusts upper cutoff pressure smaller nut left adjusts lower cut-in level engine block Continue disassembly removing cylinder head Three common methods engine valves secured cylinder block Compressing valve spring screwdriver will reveal method has used gasket unscrew oil breather plate allow access valve stems Three types valve retainers commonly used pin bored through stem split collar keyhole washer Compressing valve spring large screwdriver will reveal type retainer has used method removal should obvious retainers gone withdraw discard valves engine now reduced crankshaft attached piston moving cylinder Except valve ports indistinguishable bona fide compressor head problem providing route incoming exhaust air remains Because spark plug hole exhaust port threaded can accept standard screw fittings chose draw air through spark plug hole pump out through exhaust port Both intake port exhaust valve guide must sealed against air loss can accomplished epoxy plastic metal mender silicone rubber goop easiest way however stuff suitably sized rubber stopper obtainable hobby shop opening making sure can never work loose Discard cylinder head gasket bolt head back onto block after placing bead silicone gasket compound mating surfaces Attach six- eight-inch drive pulley either crankshaft end may few items will have buy since finding correct diameter shaft hole would take stroke extreme luck Mount engine block base overfill crankcase heavy oil Connect engine block compressor head motor drive belt checking everything lines up turns freely Plumbing wiring complete metamorphosis check valve system needed produce one-way airflow Assorted valves can found hardware store plumbing 190 Model Aviation etainer Collars variety nipples reducers may needed mate flare pipe tube fittings accumulator tank nozzle Check local dump engine repair shop treasure trove parts first step converting discarded small engine compressor head strip down bare block next step remove engine cylinder head oil breather plate valves can withdrawn third step plug intake port exhaust valve guide adhesive rubber stopper metal pin supply company cheapest alternative pair automobile positive crankcase ventilation PCV valves sold dollar two department store automotive section Some hunting experimentation will necessary fit specific configuration tubes fittings intake valve can screwed directly spark plug hole opening suction created piston downstroke closing under pressure upstroke soldering intake valve half-inch copper pipe fitting can screw outflow valve exhaust port muffler used fit Threaded joints should sealed Mylar tape silicone glop one-way valves installed assembly becomes efficient air pump Provided motor adequate suitably low-ratio belt-drive reduction setup used pump will continue work until something system explodes regulator valve must installed either release excess pressure shut off power preset level Both types common relatively inexpensive Blowoff safety valves installed water heaters pressure-sensing electric switches universally employed water system pressure tanks luck discarded serviceable example either can found dump plumbers scrap heap otherwise youll have purchase blowoff valve bit less expensive Because requires no wiring its also simpler drawback using however compressor must run constantly pressure-sensing switch wired motor circuit preferred automatically cycles motor keep reservoir tank full regulators usually set range 40-60 lb ie 60 lb power cut pressure falls below 40 lb power turned again range fairly ideal modelers needs settings can fiddled turning set adjusting screws No special tubing required Quarter-inch I16 vinyl tubing secured hose clamps withstands pressure just fine Before being routed workbench air should dumped accumulator tank smooth out pulses form supply reservoir An empty freon tank salvaged auto repair shop dumpster will fit bill nozzles tanks have flare thread does match plumbing pipe fittings auto supply houses have adapters mate flare pipe tube fittings Dirt oil residue condensed water blown through lines can wreck paint job airbrush filter drying device should inserted downstream accumulator ready-made water trap can bought airbrush manufacturers effective less expensive can arranged using chunks foam rubber filters calcium chloride CaCI desiccant crystals sold hardware stores drying out damp closets CaCl becomes saturated pop microwave toaster oven few minutes dry out Any airtight metal plastic container will filter canisteras long can withstand pressure no glass Hose nipples can attached soldering epoxying supply line workbench can flexible vinyl PVC plastic copper iron pipe ending stopcock quick-connect fitting manifold multiple ports can rigged allow simultaneous use sprayer blowgun other tools might consider adding pressure gauge final touch class luck diligent scrounging just about components can found free few bits pieces hardware will have bought total price should remain under $20 attern/Staub Continued page 41 Steve Stricker finishing fourth place knocked hard door several times push top three received no reply least 25 hard-core extremely proficient pilots US F3A gets tougher year contest weather cool crisp engine performance its peak wind very difficult blowing almost straight out about 20-25 mph curious thing condition pilots flying quite close suspect styles World Championships flown October 1991 motivation doing writer satisfied own curiosity about subject last flight finals decided move flight way received best score contest will known about whether widespread new propensity just vagary Nationals competition after N-PAC NSRCA Pan-Am RC Championships held Lawrenceville Illinois July 26August 1 next big RC Pattern event summer Overall attendance down Pattern Nationals opening up can worms some believe because timing Nationals early season economy people having enough money attend impending N-PAC competition summary 1992 Nationals RC Pattern event great success congratulations order winners much thanks Tony Stillman AMA great contest ardinallUrtnowski Continued page 145 special interest group Send dues $15 per year Mike Keville 6109 E Ivyglen St Mesa AZ 85205 bimonthly newsletter Stunt News offers interesting tips build Cardinal please send photo add album models built flying well Cardinal owners could benefit exchanging information very special thanks Big Jim Greenaway help aspect Stunt program over years Big Jim call need advice assistance engines Stunt event has changed little since its inception classic lines great Stunt ships alive well As timeless 55 Chevy vintage designs still arouse artist make wish young again ovember 1992 191 PARTS LIST QtyItemCost 1Engine block 3-8 hp0 horizontal shaft 1Appliance motor0 2Drive pulleys$3 1Drive belt$2 4 ft2 x 12 wood base0-$4 2PCV valves$2 ea lOft114. /ie-in tube$10/ft vinyl rubber copper plastic 11 Fittings reducers$50 adapters neededea i/2ifl hose clamps$50 ea 1Pressure switch0-$15 safety valve0-$8 10 ft#12 electrical cord$20/ft 1 eaSwitch outlet box$150 cover plate plug end 1Freon tank0
Edition: Model Aviation - 1992/11
Page Numbers: 188, 189, 190, 191
Edition: Model Aviation - 1992/11
Page Numbers: 188, 189, 190, 191
when can make own takes few old parts some hardware little know-how U Joel Hamm COMPRESSED AIR modelers must sprays dries dusts cleans What cleans best piggy banks Hobby compressors suitable airbrushes start around hundred dollars Larger units adaptable other household chores quickly jump three four times price Modelers talent scrounging ____a flair innovation includes modelers can assemble high-pressure high-volume air delivery system free out bits pieces local dump might already cluttering up basement workshop complete parts list included appendix components fall three categories Schematic homemade air compressor Recycle motor salvage compressor head convert single-cylinder gasoline engine raid junk boxand youre business 188 Model Aviation costly air compressor Made motor drive belt compressor head assorted valves tubes hardware air compressor provides volume pressure youll need 7 FWiring Circuit1 IIII IIBlow Gun I7 ValveAir Brush Filter PCVIj IPressureGauge \ Switch II ii Dryer/ 002 Tank Adapter Filter Reservoir Tank 0 authors workbench console scrap-box air compressor features remote power switch pressure gauge airbrush outlet blowgun Opens DownwardCloses Downward Solder Joint hitae Port EngineElbow Fitting Plug Eshaust Valve Guide motor including drive pulleys belt Compressor head large box valves tubes clamps fittings assorted hardware Any motor salvaged washing machine dishwasher will commonly range eighth third horsepower can go up half-horsepower contraption powered one-sixth horsepower clothes dryer motor Reduced through belt drive 14 ratio has never wanted power compressor head may seem like exotic unlikely treasure find lying scrap heap entirely possible come upon old refrigeration unit Just useful purposes however far easier find discarded single-cylinder gasoline engine lawn mower tiller cant find local junkyard can always find large pile free taking outside back door small-engine repair shop have choice select horizontalshaft engine since its upright posture makes mounting easier Diagram left shows convert lawn mower engine compressor head Camshaft tappets left place Valves drawn opposite sides piston clarity Diagram above shows type filterldryer chamber made plastic drain pipe fittings Water trap consists foam rubber fiberglass filters CaCI dessicant crystats Assembly instructions Because almost infinite possible combinations parts general assembly instructions can given precise connection fastening methods left modelers ingenuity first step select suitable base Since wood easiest work chose three-foot section 2 x 12 added rubber feet dampen noise vibration Mount motor base giving some provision sideways adjustment tensioning drive belt motor lacks mounting bracket can secured base lengths perforated metal pipe strap major task converting engine takes air puts out powerinto compressor tricky because compressor takes power produce pressurized air transformatton ts performed removing engine valves plugging resultant holes installing check valve system produce one-way aifflow Strip away shrouds along carburetor magneto flywheel leaving mber 1992 189 Threaded End Cap4 Plastic Drain Pipe Foam FiberglassCaCi besiccant Granules modelers can find parts theyll need attic basement Engine repair shops local dump sources discarded singlecylinder gasoline engines PCV valve copper elbow fitting screws exhaust port function outflow check valve Close-up pressure switch Large nut top center adjusts upper cutoff pressure smaller nut left adjusts lower cut-in level engine block Continue disassembly removing cylinder head Three common methods engine valves secured cylinder block Compressing valve spring screwdriver will reveal method has used gasket unscrew oil breather plate allow access valve stems Three types valve retainers commonly used pin bored through stem split collar keyhole washer Compressing valve spring large screwdriver will reveal type retainer has used method removal should obvious retainers gone withdraw discard valves engine now reduced crankshaft attached piston moving cylinder Except valve ports indistinguishable bona fide compressor head problem providing route incoming exhaust air remains Because spark plug hole exhaust port threaded can accept standard screw fittings chose draw air through spark plug hole pump out through exhaust port Both intake port exhaust valve guide must sealed against air loss can accomplished epoxy plastic metal mender silicone rubber goop easiest way however stuff suitably sized rubber stopper obtainable hobby shop opening making sure can never work loose Discard cylinder head gasket bolt head back onto block after placing bead silicone gasket compound mating surfaces Attach six- eight-inch drive pulley either crankshaft end may few items will have buy since finding correct diameter shaft hole would take stroke extreme luck Mount engine block base overfill crankcase heavy oil Connect engine block compressor head motor drive belt checking everything lines up turns freely Plumbing wiring complete metamorphosis check valve system needed produce one-way airflow Assorted valves can found hardware store plumbing 190 Model Aviation etainer Collars variety nipples reducers may needed mate flare pipe tube fittings accumulator tank nozzle Check local dump engine repair shop treasure trove parts first step converting discarded small engine compressor head strip down bare block next step remove engine cylinder head oil breather plate valves can withdrawn third step plug intake port exhaust valve guide adhesive rubber stopper metal pin supply company cheapest alternative pair automobile positive crankcase ventilation PCV valves sold dollar two department store automotive section Some hunting experimentation will necessary fit specific configuration tubes fittings intake valve can screwed directly spark plug hole opening suction created piston downstroke closing under pressure upstroke soldering intake valve half-inch copper pipe fitting can screw outflow valve exhaust port muffler used fit Threaded joints should sealed Mylar tape silicone glop one-way valves installed assembly becomes efficient air pump Provided motor adequate suitably low-ratio belt-drive reduction setup used pump will continue work until something system explodes regulator valve must installed either release excess pressure shut off power preset level Both types common relatively inexpensive Blowoff safety valves installed water heaters pressure-sensing electric switches universally employed water system pressure tanks luck discarded serviceable example either can found dump plumbers scrap heap otherwise youll have purchase blowoff valve bit less expensive Because requires no wiring its also simpler drawback using however compressor must run constantly pressure-sensing switch wired motor circuit preferred automatically cycles motor keep reservoir tank full regulators usually set range 40-60 lb ie 60 lb power cut pressure falls below 40 lb power turned again range fairly ideal modelers needs settings can fiddled turning set adjusting screws No special tubing required Quarter-inch I16 vinyl tubing secured hose clamps withstands pressure just fine Before being routed workbench air should dumped accumulator tank smooth out pulses form supply reservoir An empty freon tank salvaged auto repair shop dumpster will fit bill nozzles tanks have flare thread does match plumbing pipe fittings auto supply houses have adapters mate flare pipe tube fittings Dirt oil residue condensed water blown through lines can wreck paint job airbrush filter drying device should inserted downstream accumulator ready-made water trap can bought airbrush manufacturers effective less expensive can arranged using chunks foam rubber filters calcium chloride CaCI desiccant crystals sold hardware stores drying out damp closets CaCl becomes saturated pop microwave toaster oven few minutes dry out Any airtight metal plastic container will filter canisteras long can withstand pressure no glass Hose nipples can attached soldering epoxying supply line workbench can flexible vinyl PVC plastic copper iron pipe ending stopcock quick-connect fitting manifold multiple ports can rigged allow simultaneous use sprayer blowgun other tools might consider adding pressure gauge final touch class luck diligent scrounging just about components can found free few bits pieces hardware will have bought total price should remain under $20 attern/Staub Continued page 41 Steve Stricker finishing fourth place knocked hard door several times push top three received no reply least 25 hard-core extremely proficient pilots US F3A gets tougher year contest weather cool crisp engine performance its peak wind very difficult blowing almost straight out about 20-25 mph curious thing condition pilots flying quite close suspect styles World Championships flown October 1991 motivation doing writer satisfied own curiosity about subject last flight finals decided move flight way received best score contest will known about whether widespread new propensity just vagary Nationals competition after N-PAC NSRCA Pan-Am RC Championships held Lawrenceville Illinois July 26August 1 next big RC Pattern event summer Overall attendance down Pattern Nationals opening up can worms some believe because timing Nationals early season economy people having enough money attend impending N-PAC competition summary 1992 Nationals RC Pattern event great success congratulations order winners much thanks Tony Stillman AMA great contest ardinallUrtnowski Continued page 145 special interest group Send dues $15 per year Mike Keville 6109 E Ivyglen St Mesa AZ 85205 bimonthly newsletter Stunt News offers interesting tips build Cardinal please send photo add album models built flying well Cardinal owners could benefit exchanging information very special thanks Big Jim Greenaway help aspect Stunt program over years Big Jim call need advice assistance engines Stunt event has changed little since its inception classic lines great Stunt ships alive well As timeless 55 Chevy vintage designs still arouse artist make wish young again ovember 1992 191 PARTS LIST QtyItemCost 1Engine block 3-8 hp0 horizontal shaft 1Appliance motor0 2Drive pulleys$3 1Drive belt$2 4 ft2 x 12 wood base0-$4 2PCV valves$2 ea lOft114. /ie-in tube$10/ft vinyl rubber copper plastic 11 Fittings reducers$50 adapters neededea i/2ifl hose clamps$50 ea 1Pressure switch0-$15 safety valve0-$8 10 ft#12 electrical cord$20/ft 1 eaSwitch outlet box$150 cover plate plug end 1Freon tank0
Edition: Model Aviation - 1992/11
Page Numbers: 188, 189, 190, 191
when can make own takes few old parts some hardware little know-how U Joel Hamm COMPRESSED AIR modelers must sprays dries dusts cleans What cleans best piggy banks Hobby compressors suitable airbrushes start around hundred dollars Larger units adaptable other household chores quickly jump three four times price Modelers talent scrounging ____a flair innovation includes modelers can assemble high-pressure high-volume air delivery system free out bits pieces local dump might already cluttering up basement workshop complete parts list included appendix components fall three categories Schematic homemade air compressor Recycle motor salvage compressor head convert single-cylinder gasoline engine raid junk boxand youre business 188 Model Aviation costly air compressor Made motor drive belt compressor head assorted valves tubes hardware air compressor provides volume pressure youll need 7 FWiring Circuit1 IIII IIBlow Gun I7 ValveAir Brush Filter PCVIj IPressureGauge \ Switch II ii Dryer/ 002 Tank Adapter Filter Reservoir Tank 0 authors workbench console scrap-box air compressor features remote power switch pressure gauge airbrush outlet blowgun Opens DownwardCloses Downward Solder Joint hitae Port EngineElbow Fitting Plug Eshaust Valve Guide motor including drive pulleys belt Compressor head large box valves tubes clamps fittings assorted hardware Any motor salvaged washing machine dishwasher will commonly range eighth third horsepower can go up half-horsepower contraption powered one-sixth horsepower clothes dryer motor Reduced through belt drive 14 ratio has never wanted power compressor head may seem like exotic unlikely treasure find lying scrap heap entirely possible come upon old refrigeration unit Just useful purposes however far easier find discarded single-cylinder gasoline engine lawn mower tiller cant find local junkyard can always find large pile free taking outside back door small-engine repair shop have choice select horizontalshaft engine since its upright posture makes mounting easier Diagram left shows convert lawn mower engine compressor head Camshaft tappets left place Valves drawn opposite sides piston clarity Diagram above shows type filterldryer chamber made plastic drain pipe fittings Water trap consists foam rubber fiberglass filters CaCI dessicant crystats Assembly instructions Because almost infinite possible combinations parts general assembly instructions can given precise connection fastening methods left modelers ingenuity first step select suitable base Since wood easiest work chose three-foot section 2 x 12 added rubber feet dampen noise vibration Mount motor base giving some provision sideways adjustment tensioning drive belt motor lacks mounting bracket can secured base lengths perforated metal pipe strap major task converting engine takes air puts out powerinto compressor tricky because compressor takes power produce pressurized air transformatton ts performed removing engine valves plugging resultant holes installing check valve system produce one-way aifflow Strip away shrouds along carburetor magneto flywheel leaving mber 1992 189 Threaded End Cap4 Plastic Drain Pipe Foam FiberglassCaCi besiccant Granules modelers can find parts theyll need attic basement Engine repair shops local dump sources discarded singlecylinder gasoline engines PCV valve copper elbow fitting screws exhaust port function outflow check valve Close-up pressure switch Large nut top center adjusts upper cutoff pressure smaller nut left adjusts lower cut-in level engine block Continue disassembly removing cylinder head Three common methods engine valves secured cylinder block Compressing valve spring screwdriver will reveal method has used gasket unscrew oil breather plate allow access valve stems Three types valve retainers commonly used pin bored through stem split collar keyhole washer Compressing valve spring large screwdriver will reveal type retainer has used method removal should obvious retainers gone withdraw discard valves engine now reduced crankshaft attached piston moving cylinder Except valve ports indistinguishable bona fide compressor head problem providing route incoming exhaust air remains Because spark plug hole exhaust port threaded can accept standard screw fittings chose draw air through spark plug hole pump out through exhaust port Both intake port exhaust valve guide must sealed against air loss can accomplished epoxy plastic metal mender silicone rubber goop easiest way however stuff suitably sized rubber stopper obtainable hobby shop opening making sure can never work loose Discard cylinder head gasket bolt head back onto block after placing bead silicone gasket compound mating surfaces Attach six- eight-inch drive pulley either crankshaft end may few items will have buy since finding correct diameter shaft hole would take stroke extreme luck Mount engine block base overfill crankcase heavy oil Connect engine block compressor head motor drive belt checking everything lines up turns freely Plumbing wiring complete metamorphosis check valve system needed produce one-way airflow Assorted valves can found hardware store plumbing 190 Model Aviation etainer Collars variety nipples reducers may needed mate flare pipe tube fittings accumulator tank nozzle Check local dump engine repair shop treasure trove parts first step converting discarded small engine compressor head strip down bare block next step remove engine cylinder head oil breather plate valves can withdrawn third step plug intake port exhaust valve guide adhesive rubber stopper metal pin supply company cheapest alternative pair automobile positive crankcase ventilation PCV valves sold dollar two department store automotive section Some hunting experimentation will necessary fit specific configuration tubes fittings intake valve can screwed directly spark plug hole opening suction created piston downstroke closing under pressure upstroke soldering intake valve half-inch copper pipe fitting can screw outflow valve exhaust port muffler used fit Threaded joints should sealed Mylar tape silicone glop one-way valves installed assembly becomes efficient air pump Provided motor adequate suitably low-ratio belt-drive reduction setup used pump will continue work until something system explodes regulator valve must installed either release excess pressure shut off power preset level Both types common relatively inexpensive Blowoff safety valves installed water heaters pressure-sensing electric switches universally employed water system pressure tanks luck discarded serviceable example either can found dump plumbers scrap heap otherwise youll have purchase blowoff valve bit less expensive Because requires no wiring its also simpler drawback using however compressor must run constantly pressure-sensing switch wired motor circuit preferred automatically cycles motor keep reservoir tank full regulators usually set range 40-60 lb ie 60 lb power cut pressure falls below 40 lb power turned again range fairly ideal modelers needs settings can fiddled turning set adjusting screws No special tubing required Quarter-inch I16 vinyl tubing secured hose clamps withstands pressure just fine Before being routed workbench air should dumped accumulator tank smooth out pulses form supply reservoir An empty freon tank salvaged auto repair shop dumpster will fit bill nozzles tanks have flare thread does match plumbing pipe fittings auto supply houses have adapters mate flare pipe tube fittings Dirt oil residue condensed water blown through lines can wreck paint job airbrush filter drying device should inserted downstream accumulator ready-made water trap can bought airbrush manufacturers effective less expensive can arranged using chunks foam rubber filters calcium chloride CaCI desiccant crystals sold hardware stores drying out damp closets CaCl becomes saturated pop microwave toaster oven few minutes dry out Any airtight metal plastic container will filter canisteras long can withstand pressure no glass Hose nipples can attached soldering epoxying supply line workbench can flexible vinyl PVC plastic copper iron pipe ending stopcock quick-connect fitting manifold multiple ports can rigged allow simultaneous use sprayer blowgun other tools might consider adding pressure gauge final touch class luck diligent scrounging just about components can found free few bits pieces hardware will have bought total price should remain under $20 attern/Staub Continued page 41 Steve Stricker finishing fourth place knocked hard door several times push top three received no reply least 25 hard-core extremely proficient pilots US F3A gets tougher year contest weather cool crisp engine performance its peak wind very difficult blowing almost straight out about 20-25 mph curious thing condition pilots flying quite close suspect styles World Championships flown October 1991 motivation doing writer satisfied own curiosity about subject last flight finals decided move flight way received best score contest will known about whether widespread new propensity just vagary Nationals competition after N-PAC NSRCA Pan-Am RC Championships held Lawrenceville Illinois July 26August 1 next big RC Pattern event summer Overall attendance down Pattern Nationals opening up can worms some believe because timing Nationals early season economy people having enough money attend impending N-PAC competition summary 1992 Nationals RC Pattern event great success congratulations order winners much thanks Tony Stillman AMA great contest ardinallUrtnowski Continued page 145 special interest group Send dues $15 per year Mike Keville 6109 E Ivyglen St Mesa AZ 85205 bimonthly newsletter Stunt News offers interesting tips build Cardinal please send photo add album models built flying well Cardinal owners could benefit exchanging information very special thanks Big Jim Greenaway help aspect Stunt program over years Big Jim call need advice assistance engines Stunt event has changed little since its inception classic lines great Stunt ships alive well As timeless 55 Chevy vintage designs still arouse artist make wish young again ovember 1992 191 PARTS LIST QtyItemCost 1Engine block 3-8 hp0 horizontal shaft 1Appliance motor0 2Drive pulleys$3 1Drive belt$2 4 ft2 x 12 wood base0-$4 2PCV valves$2 ea lOft114. /ie-in tube$10/ft vinyl rubber copper plastic 11 Fittings reducers$50 adapters neededea i/2ifl hose clamps$50 ea 1Pressure switch0-$15 safety valve0-$8 10 ft#12 electrical cord$20/ft 1 eaSwitch outlet box$150 cover plate plug end 1Freon tank0
Edition: Model Aviation - 1992/11
Page Numbers: 188, 189, 190, 191
when can make own takes few old parts some hardware little know-how U Joel Hamm COMPRESSED AIR modelers must sprays dries dusts cleans What cleans best piggy banks Hobby compressors suitable airbrushes start around hundred dollars Larger units adaptable other household chores quickly jump three four times price Modelers talent scrounging ____a flair innovation includes modelers can assemble high-pressure high-volume air delivery system free out bits pieces local dump might already cluttering up basement workshop complete parts list included appendix components fall three categories Schematic homemade air compressor Recycle motor salvage compressor head convert single-cylinder gasoline engine raid junk boxand youre business 188 Model Aviation costly air compressor Made motor drive belt compressor head assorted valves tubes hardware air compressor provides volume pressure youll need 7 FWiring Circuit1 IIII IIBlow Gun I7 ValveAir Brush Filter PCVIj IPressureGauge \ Switch II ii Dryer/ 002 Tank Adapter Filter Reservoir Tank 0 authors workbench console scrap-box air compressor features remote power switch pressure gauge airbrush outlet blowgun Opens DownwardCloses Downward Solder Joint hitae Port EngineElbow Fitting Plug Eshaust Valve Guide motor including drive pulleys belt Compressor head large box valves tubes clamps fittings assorted hardware Any motor salvaged washing machine dishwasher will commonly range eighth third horsepower can go up half-horsepower contraption powered one-sixth horsepower clothes dryer motor Reduced through belt drive 14 ratio has never wanted power compressor head may seem like exotic unlikely treasure find lying scrap heap entirely possible come upon old refrigeration unit Just useful purposes however far easier find discarded single-cylinder gasoline engine lawn mower tiller cant find local junkyard can always find large pile free taking outside back door small-engine repair shop have choice select horizontalshaft engine since its upright posture makes mounting easier Diagram left shows convert lawn mower engine compressor head Camshaft tappets left place Valves drawn opposite sides piston clarity Diagram above shows type filterldryer chamber made plastic drain pipe fittings Water trap consists foam rubber fiberglass filters CaCI dessicant crystats Assembly instructions Because almost infinite possible combinations parts general assembly instructions can given precise connection fastening methods left modelers ingenuity first step select suitable base Since wood easiest work chose three-foot section 2 x 12 added rubber feet dampen noise vibration Mount motor base giving some provision sideways adjustment tensioning drive belt motor lacks mounting bracket can secured base lengths perforated metal pipe strap major task converting engine takes air puts out powerinto compressor tricky because compressor takes power produce pressurized air transformatton ts performed removing engine valves plugging resultant holes installing check valve system produce one-way aifflow Strip away shrouds along carburetor magneto flywheel leaving mber 1992 189 Threaded End Cap4 Plastic Drain Pipe Foam FiberglassCaCi besiccant Granules modelers can find parts theyll need attic basement Engine repair shops local dump sources discarded singlecylinder gasoline engines PCV valve copper elbow fitting screws exhaust port function outflow check valve Close-up pressure switch Large nut top center adjusts upper cutoff pressure smaller nut left adjusts lower cut-in level engine block Continue disassembly removing cylinder head Three common methods engine valves secured cylinder block Compressing valve spring screwdriver will reveal method has used gasket unscrew oil breather plate allow access valve stems Three types valve retainers commonly used pin bored through stem split collar keyhole washer Compressing valve spring large screwdriver will reveal type retainer has used method removal should obvious retainers gone withdraw discard valves engine now reduced crankshaft attached piston moving cylinder Except valve ports indistinguishable bona fide compressor head problem providing route incoming exhaust air remains Because spark plug hole exhaust port threaded can accept standard screw fittings chose draw air through spark plug hole pump out through exhaust port Both intake port exhaust valve guide must sealed against air loss can accomplished epoxy plastic metal mender silicone rubber goop easiest way however stuff suitably sized rubber stopper obtainable hobby shop opening making sure can never work loose Discard cylinder head gasket bolt head back onto block after placing bead silicone gasket compound mating surfaces Attach six- eight-inch drive pulley either crankshaft end may few items will have buy since finding correct diameter shaft hole would take stroke extreme luck Mount engine block base overfill crankcase heavy oil Connect engine block compressor head motor drive belt checking everything lines up turns freely Plumbing wiring complete metamorphosis check valve system needed produce one-way airflow Assorted valves can found hardware store plumbing 190 Model Aviation etainer Collars variety nipples reducers may needed mate flare pipe tube fittings accumulator tank nozzle Check local dump engine repair shop treasure trove parts first step converting discarded small engine compressor head strip down bare block next step remove engine cylinder head oil breather plate valves can withdrawn third step plug intake port exhaust valve guide adhesive rubber stopper metal pin supply company cheapest alternative pair automobile positive crankcase ventilation PCV valves sold dollar two department store automotive section Some hunting experimentation will necessary fit specific configuration tubes fittings intake valve can screwed directly spark plug hole opening suction created piston downstroke closing under pressure upstroke soldering intake valve half-inch copper pipe fitting can screw outflow valve exhaust port muffler used fit Threaded joints should sealed Mylar tape silicone glop one-way valves installed assembly becomes efficient air pump Provided motor adequate suitably low-ratio belt-drive reduction setup used pump will continue work until something system explodes regulator valve must installed either release excess pressure shut off power preset level Both types common relatively inexpensive Blowoff safety valves installed water heaters pressure-sensing electric switches universally employed water system pressure tanks luck discarded serviceable example either can found dump plumbers scrap heap otherwise youll have purchase blowoff valve bit less expensive Because requires no wiring its also simpler drawback using however compressor must run constantly pressure-sensing switch wired motor circuit preferred automatically cycles motor keep reservoir tank full regulators usually set range 40-60 lb ie 60 lb power cut pressure falls below 40 lb power turned again range fairly ideal modelers needs settings can fiddled turning set adjusting screws No special tubing required Quarter-inch I16 vinyl tubing secured hose clamps withstands pressure just fine Before being routed workbench air should dumped accumulator tank smooth out pulses form supply reservoir An empty freon tank salvaged auto repair shop dumpster will fit bill nozzles tanks have flare thread does match plumbing pipe fittings auto supply houses have adapters mate flare pipe tube fittings Dirt oil residue condensed water blown through lines can wreck paint job airbrush filter drying device should inserted downstream accumulator ready-made water trap can bought airbrush manufacturers effective less expensive can arranged using chunks foam rubber filters calcium chloride CaCI desiccant crystals sold hardware stores drying out damp closets CaCl becomes saturated pop microwave toaster oven few minutes dry out Any airtight metal plastic container will filter canisteras long can withstand pressure no glass Hose nipples can attached soldering epoxying supply line workbench can flexible vinyl PVC plastic copper iron pipe ending stopcock quick-connect fitting manifold multiple ports can rigged allow simultaneous use sprayer blowgun other tools might consider adding pressure gauge final touch class luck diligent scrounging just about components can found free few bits pieces hardware will have bought total price should remain under $20 attern/Staub Continued page 41 Steve Stricker finishing fourth place knocked hard door several times push top three received no reply least 25 hard-core extremely proficient pilots US F3A gets tougher year contest weather cool crisp engine performance its peak wind very difficult blowing almost straight out about 20-25 mph curious thing condition pilots flying quite close suspect styles World Championships flown October 1991 motivation doing writer satisfied own curiosity about subject last flight finals decided move flight way received best score contest will known about whether widespread new propensity just vagary Nationals competition after N-PAC NSRCA Pan-Am RC Championships held Lawrenceville Illinois July 26August 1 next big RC Pattern event summer Overall attendance down Pattern Nationals opening up can worms some believe because timing Nationals early season economy people having enough money attend impending N-PAC competition summary 1992 Nationals RC Pattern event great success congratulations order winners much thanks Tony Stillman AMA great contest ardinallUrtnowski Continued page 145 special interest group Send dues $15 per year Mike Keville 6109 E Ivyglen St Mesa AZ 85205 bimonthly newsletter Stunt News offers interesting tips build Cardinal please send photo add album models built flying well Cardinal owners could benefit exchanging information very special thanks Big Jim Greenaway help aspect Stunt program over years Big Jim call need advice assistance engines Stunt event has changed little since its inception classic lines great Stunt ships alive well As timeless 55 Chevy vintage designs still arouse artist make wish young again ovember 1992 191 PARTS LIST QtyItemCost 1Engine block 3-8 hp0 horizontal shaft 1Appliance motor0 2Drive pulleys$3 1Drive belt$2 4 ft2 x 12 wood base0-$4 2PCV valves$2 ea lOft114. /ie-in tube$10/ft vinyl rubber copper plastic 11 Fittings reducers$50 adapters neededea i/2ifl hose clamps$50 ea 1Pressure switch0-$15 safety valve0-$8 10 ft#12 electrical cord$20/ft 1 eaSwitch outlet box$150 cover plate plug end 1Freon tank0
