00 Tomy Toy Power Conversion inexpensive windup Tomy Toys around great deal have right kind mechanism make excellent timerfor FF engine sh utoffs WM Dunlop TOMY TOYS marvelous examples precision engineering manufacturing little windup clock mechanisms sturdy reliable can adapted technical requirements con version show herefor fuel shutoff Power modelsis lightweight consistent fairly easy make timer can used flood-off pinch-off setups Tomy toys have proper clock mechanism want has escapement controls un winding rate Some smaller simpler toys use escapement larger complex toys usually way really know whether type want dismantle mech anism toy look es capement Another way wind up dismantled mechanism release it goes zzzt immediately unwinds does have escapement toys come different shapes Robot Pac-man etc often can purchased sale little 70 cents Some toys held together screws some glued together revolution ratchet gear mechanism comes toy equals seven seconds Cat III engine usually too fast purposes runs Cat II Cat can slow down adding weight escapement can slowed enough Dismantling reassembly clock54 Model Aviation As didnt know Tomy Toy left finished shutoff timer toys innards right author shows details make own Disassembly Tomy Toy results pieces course clockwork assembly still intact just came toy point can tell correct kind disassembled clockwork mechanism kind Tomywindup power unit needed purposes has escapement slowed adding small amount weightto Left gearbox assembly showing gears ratchet escapement proper positions Right altered escapement lower right winding knob unfinished faceplate may cases telling harder doing disturbed come out diagram shows belong Cut two pieces A2 sheet lead fit escapement Scarify surfaces lead escapement glue together epoxy dont use cyanoacry work mechanism very difficult very careful can take apart disturbing innards Usually arent lucky detailed oversize assembly drawings shown first step push winding shaft through deburred piece Yi6 music wire about 2 long Leave wire usually gear part toy mechanism clockwork mechanism can used release disk fastened winding knob no holes shown drawing drill some Location holes overly critical function lock epoxy stronger joint Make 045 step shown Use feeler gauge dimension overly critical Glue disk shaft winding knob slow-set epoxy 5-mm epoxy isnt strong enough Remove top prying up gently screwdriver slots shown compartment spring re tained usually pops out Ill tell put back center partition now can easily lifted out exposing gear case Lift out escapement part will alter other parts need late CyA fuel-proof Make sure lead will interfere frame rotating parts amount lead used will determine speed rotation cut-and-try proposition varies parMarch 1987 55 trickiest parts clockwork apparatus spring leftthe cover has assembled overthe spring before winding spring place right spring has assembled spring compartment cover now can easily slipped place side view finished timer shows wire engagesthe escapement stops clockfrom unwinding whilethe engine being starteddisengaged before launching ticular clockwork mechanism Make very sure no glue gets bearings escapement Reassemble mechanism per diagram Assemble gears es capement gear case install center partition Hold spring place about three turns inside rest outside shown Slip top place very carefully see picture big hands can everyone ought able top should come down easily force Make sure spring does hang up frame top near its home position will snap place Use bottom gear case before assembly template trace piece /64 plywood showing locations bearing holes Drill -in clearance holes locations Glue ply onto bottom filler between bottom case brass plate gears float up down filler gears would rub brass plate operation would erratic Make up brass plate drill shown Cut brass tubing solder place Make sure have good solder joints use Stay Brite solder flux use rosin-core solder does give strongest bond Take care setting up shutoff wire should slide down over edge escapement tight enginebut should push hard against enough hold against vibration theContinued page 146 DRILL 46DIA HOLES WINDING KNOB \ / IN SLOTTED DISC Y 1/16 SLOT 0 r iifl cki 1045 UjI 0 WIRE TRIP ARM R DOTTED LINE SHOWS PATH OF SPRING #43 DRILL GEAR CASE FILE CLEAR FOR 3 PLACES 0 MAIN DRIVE GEAR RATCHET #51DRILL /4IDLE GEAR 2 PLACES \ ___ IDLE GEAR IDLE GEAR 2VINYL /ESCAPEMENT STRIPS NOTEGEAR IS SLIGHTLY LARGER THAN GEAR k4 PLY TO OUTSIDE___________ SURF OF GEARCASE DOTTED LINE DENOTES GEAR DOWN IN CASE EPOXY-\J ESCAPEMENT RY ADD LEA AS NECE 4TE THIS END IS DOWN IN GEARCASE COVER SPRING COMPARTMENT GEARCASE ED Y J\r#256 BRASSBOLT NUT PLATE 1 BRASS TUBG /2PL ACES 180 \/-j/J2WIRE STOP 580OFF P05 010 RRASS PlATE 56 Model Aviation -J -J COVER Modified Tomy Toy engine timer authors hA Free Flights Its rigged pinch off fuel line external bladder pressure tank Timer weighs just 62 grams 2 0 0 0 NG COMPARTMENT x OPEN UP SLOT FOR #256 BOLT THRU -s * Special Detergents help prevent varnish promote clean burning st Preventatives protect expensive engines corrosion CHAMPION 2-STROKE FUEL FREE SHIPPING ON ORDERS OVER $1500 PINT QUART GALLON 55 GAL DRUM 0% Nitromethane $315$450$1050$19000 5% Nitromethane $365$525$1250$25800 10% Nitromethane $415$550$1450$32500t 15% Nitromethane$430$625$1650$38500 25% Nitromethane$495$750$2095$52000 35% Nitromethane$575$875$2495$66000 SIGPREMIUM4-STROKE FUEL 10% Nitromethane $415$550$1395$295 00 15% Nitromethane $425$625$1595$359 00 THE CHOICE OF CHAMPION FLYERS over 20 years SIG has blending fuel finest quality ingredients available alcohol pure very best grade available nitromethane use 100% pure get honest portion based % volume maximum lubrication get perfect 50/50 blend Bakers AA Castor Oil Klotz Techniplate Racing Oil protect expensive engines finest quality fuel can made price Dont take word try some tudge yourself dealer first available order direct Call 800-247-5008 toll free orders Latest Catalog $300 SIG MANUFACTURING CO Montezuma IA 50171 Z Pncs ssbiext cianae nrrihesi notes FL YME~j h WINDSOCK Wind Direction 8 inches, Anytime Anywhereplus tails Attaches antenna mast Iclips includedl lable frequency colors IGive frequency number orderl ign orders add S & H 51 50 Calif Residenta add 6% tax la Products PO Eex 484 Lake Elslnere CA 92330 RC Giant Scale/de Vries Continued page 51 With bit checking think youll find what youre looking among mail-order Giant Scale drawings Give tryyoull like scratch building ere thanks Jerry Smith photographer par excellence photos accompanying monthss column Ive slowed up bit surgery Jerry came through like US Marines John de Vries 4610MoffattLn Colorado Springs CO 80915 y Timer/Dunlop Continued page 56 down escapement After other end wire bent hold place crimp tubing blunt chisel Make tight enough hold arm place against engine vi bration tight cannot move Finish face brass plate wish used white Superpoxy /32 black vinyl strips graduations seal strips clear Superpoxy gradu ations indicators exact seconds Glue faceplate / ply install 2-56 roundhead screw nut use Loctite nut Dont tighten nut too much will slow mechanism just snug up Remove piece lie music wire pushing through partially winding knob shaft Put very small amount slow-set CyA shaft about /32 shoulder release disk Plunge shaft home quickly Immediately wind unit partially release unwind repeatedly few minutes help prevent CyA freezing works Once glue has set carefully wind unit fullybut dont force overwind Note full-wind position wind position time Overwinding will cttuse shaft slip slips looser gets From full winds shaft should unwind 6 7 turns Any less means hung up somewhere will have freed first revolution full winds should approximately seven nine seconds runs too fast add lead escape ment being very sure lead causes no interference unit can taken apart removing winding shaft faceplate This timer can used flood-off system putting tubing use very light silicon tubing under release arm pinch-off system would have line running upright arm shown Keep line low faceplate ease tension timer spring The unit very light weighs just 62 grams reliable holds up well Try Continued page 154 146 Model Aviation PIPER SUPER CUB OUATER SCALE QUADRA 4CYCLE SEND $200 FOR COMPLETE CATALOG OF FINE KITS IKON NWST PO Hox 566 Auburn WA 98071 206 941-8248 WHEN YOU FORGET\OUR UNITS REMEMBER RC System NiCd Batteries chargers need package s48VRxand96V Tx packs$17995FO Plus $5 S&H Others available write llBatteries kier $2495 ForPlus $2 S&H-t Regular Model$3995 F field kit small Plus $2 S&H electric boat batteriesSpecify 612 24V y Duty Model$4995 sport winch large boat andPlus $250 S&H electric power charging batteriesSpecify 6 12V ProductsSASE br informausriPO Box 221 CaRa 5-987-5924Deaier inquiries invited canton SD 57013 Tomy Timer/Dunlop Continued page 146 keep fuel off it wont slow down unless gets really messy happens take apart clean al cohol get ready go again ndoor/Tenny Continued page 57 largest film hoop hope fill reason properly-poured film needs room spread naturally Cramped pouring space causes either very uneven film color artificially thick unstable sheet film Film has its spreading artificially limited poor risk use models Part problem pouring microfilm maintain good control amount microfilm solution deposited water second photo microfilm saga series shows shortcut problem Uniform distribution solution has two elements rate fluid flow rate distribution Rate distribution requires sweep arm across tank rate pouring spout photo has set interchangeable different-sized orifices plan match orifice required pouring rate always use same orifice hatch film solution free learn uniform pouring motion Be sure keep nozzle uniformly close water prevent splash because splash makes bubbles create holes film sheet Here another film technique makes easier get good sheets film storage boxes traditional method attaching film hoop lap film over edge hoop much better way coat film side hoop rubber cement Let rubber cement solvents evaporate leaving tacky film hoop pressed down onto poured film adheres well enough film outside hoop can torn away can lift film immediately Also need lift smaller hoops pour normal-sized sheet put small hoops sheet will fit Tear loose lift normally Just precaution process tearing film around hoops may leave small scraps film water arent cleaned off may attach other sheets spoil otherwise good film One microfilm hint storage boxes last photos shows store lot film small area Hoops made fit closely half inch clearance end inside chosen storage box Use tapered blocks attached inside box sides back create self-centering slots will hold hoops cant touch other tapered blocks important contact hoops corners film hoop never touched Instead hoops held securely wedged between tapered blocks box construction gives safe reliable storage indefinite time uter users looks like more computer users out com puters often useful model design prob lems have developed program compute print out dimensions prop blocks ac cording formula published previous column January 1987 issue $1 will send listings Radio Shack Color Computer Model 100 lap top Commodore 64 Send request address given below Tenny PO Box 545 Richardson TX 75080 uration/Wainfan Continued page 59 Current mles count stab area below 50% wing area wing area n-area rule no longer rule book have able find out history rule am certain deleted because being used rather because flying wings winning too much out can give information history rule deleted still exists has inadvertently omitted rule book please contact ed wings An unconventional configuration receiving considerable interest real-airplane world lately joined wing joined-wing airplane has two wings joined tips form diamond shape rear wing root mounted fin front wing attached fuselage wings form diamond front view well top view wing tips same level behind other joined tip body end plate The joined wing invented Dr Julian Wolkovitch holds patent concept joined wing has two attractive advantages first wings brace TErebail RIC Idle-Bar Glow Plugs Long Short$1 89 Also . Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 Wayne NJ e A4 07470ff/j Model Aviation
Edition: Model Aviation - 1987/03
Page Numbers: 54, 55, 56, 146, 154
00 Tomy Toy Power Conversion inexpensive windup Tomy Toys around great deal have right kind mechanism make excellent timerfor FF engine sh utoffs WM Dunlop TOMY TOYS marvelous examples precision engineering manufacturing little windup clock mechanisms sturdy reliable can adapted technical requirements con version show herefor fuel shutoff Power modelsis lightweight consistent fairly easy make timer can used flood-off pinch-off setups Tomy toys have proper clock mechanism want has escapement controls un winding rate Some smaller simpler toys use escapement larger complex toys usually way really know whether type want dismantle mech anism toy look es capement Another way wind up dismantled mechanism release it goes zzzt immediately unwinds does have escapement toys come different shapes Robot Pac-man etc often can purchased sale little 70 cents Some toys held together screws some glued together revolution ratchet gear mechanism comes toy equals seven seconds Cat III engine usually too fast purposes runs Cat II Cat can slow down adding weight escapement can slowed enough Dismantling reassembly clock54 Model Aviation As didnt know Tomy Toy left finished shutoff timer toys innards right author shows details make own Disassembly Tomy Toy results pieces course clockwork assembly still intact just came toy point can tell correct kind disassembled clockwork mechanism kind Tomywindup power unit needed purposes has escapement slowed adding small amount weightto Left gearbox assembly showing gears ratchet escapement proper positions Right altered escapement lower right winding knob unfinished faceplate may cases telling harder doing disturbed come out diagram shows belong Cut two pieces A2 sheet lead fit escapement Scarify surfaces lead escapement glue together epoxy dont use cyanoacry work mechanism very difficult very careful can take apart disturbing innards Usually arent lucky detailed oversize assembly drawings shown first step push winding shaft through deburred piece Yi6 music wire about 2 long Leave wire usually gear part toy mechanism clockwork mechanism can used release disk fastened winding knob no holes shown drawing drill some Location holes overly critical function lock epoxy stronger joint Make 045 step shown Use feeler gauge dimension overly critical Glue disk shaft winding knob slow-set epoxy 5-mm epoxy isnt strong enough Remove top prying up gently screwdriver slots shown compartment spring re tained usually pops out Ill tell put back center partition now can easily lifted out exposing gear case Lift out escapement part will alter other parts need late CyA fuel-proof Make sure lead will interfere frame rotating parts amount lead used will determine speed rotation cut-and-try proposition varies parMarch 1987 55 trickiest parts clockwork apparatus spring leftthe cover has assembled overthe spring before winding spring place right spring has assembled spring compartment cover now can easily slipped place side view finished timer shows wire engagesthe escapement stops clockfrom unwinding whilethe engine being starteddisengaged before launching ticular clockwork mechanism Make very sure no glue gets bearings escapement Reassemble mechanism per diagram Assemble gears es capement gear case install center partition Hold spring place about three turns inside rest outside shown Slip top place very carefully see picture big hands can everyone ought able top should come down easily force Make sure spring does hang up frame top near its home position will snap place Use bottom gear case before assembly template trace piece /64 plywood showing locations bearing holes Drill -in clearance holes locations Glue ply onto bottom filler between bottom case brass plate gears float up down filler gears would rub brass plate operation would erratic Make up brass plate drill shown Cut brass tubing solder place Make sure have good solder joints use Stay Brite solder flux use rosin-core solder does give strongest bond Take care setting up shutoff wire should slide down over edge escapement tight enginebut should push hard against enough hold against vibration theContinued page 146 DRILL 46DIA HOLES WINDING KNOB \ / IN SLOTTED DISC Y 1/16 SLOT 0 r iifl cki 1045 UjI 0 WIRE TRIP ARM R DOTTED LINE SHOWS PATH OF SPRING #43 DRILL GEAR CASE FILE CLEAR FOR 3 PLACES 0 MAIN DRIVE GEAR RATCHET #51DRILL /4IDLE GEAR 2 PLACES \ ___ IDLE GEAR IDLE GEAR 2VINYL /ESCAPEMENT STRIPS NOTEGEAR IS SLIGHTLY LARGER THAN GEAR k4 PLY TO OUTSIDE___________ SURF OF GEARCASE DOTTED LINE DENOTES GEAR DOWN IN CASE EPOXY-\J ESCAPEMENT RY ADD LEA AS NECE 4TE THIS END IS DOWN IN GEARCASE COVER SPRING COMPARTMENT GEARCASE ED Y J\r#256 BRASSBOLT NUT PLATE 1 BRASS TUBG /2PL ACES 180 \/-j/J2WIRE STOP 580OFF P05 010 RRASS PlATE 56 Model Aviation -J -J COVER Modified Tomy Toy engine timer authors hA Free Flights Its rigged pinch off fuel line external bladder pressure tank Timer weighs just 62 grams 2 0 0 0 NG COMPARTMENT x OPEN UP SLOT FOR #256 BOLT THRU -s * Special Detergents help prevent varnish promote clean burning st Preventatives protect expensive engines corrosion CHAMPION 2-STROKE FUEL FREE SHIPPING ON ORDERS OVER $1500 PINT QUART GALLON 55 GAL DRUM 0% Nitromethane $315$450$1050$19000 5% Nitromethane $365$525$1250$25800 10% Nitromethane $415$550$1450$32500t 15% Nitromethane$430$625$1650$38500 25% Nitromethane$495$750$2095$52000 35% Nitromethane$575$875$2495$66000 SIGPREMIUM4-STROKE FUEL 10% Nitromethane $415$550$1395$295 00 15% Nitromethane $425$625$1595$359 00 THE CHOICE OF CHAMPION FLYERS over 20 years SIG has blending fuel finest quality ingredients available alcohol pure very best grade available nitromethane use 100% pure get honest portion based % volume maximum lubrication get perfect 50/50 blend Bakers AA Castor Oil Klotz Techniplate Racing Oil protect expensive engines finest quality fuel can made price Dont take word try some tudge yourself dealer first available order direct Call 800-247-5008 toll free orders Latest Catalog $300 SIG MANUFACTURING CO Montezuma IA 50171 Z Pncs ssbiext cianae nrrihesi notes FL YME~j h WINDSOCK Wind Direction 8 inches, Anytime Anywhereplus tails Attaches antenna mast Iclips includedl lable frequency colors IGive frequency number orderl ign orders add S & H 51 50 Calif Residenta add 6% tax la Products PO Eex 484 Lake Elslnere CA 92330 RC Giant Scale/de Vries Continued page 51 With bit checking think youll find what youre looking among mail-order Giant Scale drawings Give tryyoull like scratch building ere thanks Jerry Smith photographer par excellence photos accompanying monthss column Ive slowed up bit surgery Jerry came through like US Marines John de Vries 4610MoffattLn Colorado Springs CO 80915 y Timer/Dunlop Continued page 56 down escapement After other end wire bent hold place crimp tubing blunt chisel Make tight enough hold arm place against engine vi bration tight cannot move Finish face brass plate wish used white Superpoxy /32 black vinyl strips graduations seal strips clear Superpoxy gradu ations indicators exact seconds Glue faceplate / ply install 2-56 roundhead screw nut use Loctite nut Dont tighten nut too much will slow mechanism just snug up Remove piece lie music wire pushing through partially winding knob shaft Put very small amount slow-set CyA shaft about /32 shoulder release disk Plunge shaft home quickly Immediately wind unit partially release unwind repeatedly few minutes help prevent CyA freezing works Once glue has set carefully wind unit fullybut dont force overwind Note full-wind position wind position time Overwinding will cttuse shaft slip slips looser gets From full winds shaft should unwind 6 7 turns Any less means hung up somewhere will have freed first revolution full winds should approximately seven nine seconds runs too fast add lead escape ment being very sure lead causes no interference unit can taken apart removing winding shaft faceplate This timer can used flood-off system putting tubing use very light silicon tubing under release arm pinch-off system would have line running upright arm shown Keep line low faceplate ease tension timer spring The unit very light weighs just 62 grams reliable holds up well Try Continued page 154 146 Model Aviation PIPER SUPER CUB OUATER SCALE QUADRA 4CYCLE SEND $200 FOR COMPLETE CATALOG OF FINE KITS IKON NWST PO Hox 566 Auburn WA 98071 206 941-8248 WHEN YOU FORGET\OUR UNITS REMEMBER RC System NiCd Batteries chargers need package s48VRxand96V Tx packs$17995FO Plus $5 S&H Others available write llBatteries kier $2495 ForPlus $2 S&H-t Regular Model$3995 F field kit small Plus $2 S&H electric boat batteriesSpecify 612 24V y Duty Model$4995 sport winch large boat andPlus $250 S&H electric power charging batteriesSpecify 6 12V ProductsSASE br informausriPO Box 221 CaRa 5-987-5924Deaier inquiries invited canton SD 57013 Tomy Timer/Dunlop Continued page 146 keep fuel off it wont slow down unless gets really messy happens take apart clean al cohol get ready go again ndoor/Tenny Continued page 57 largest film hoop hope fill reason properly-poured film needs room spread naturally Cramped pouring space causes either very uneven film color artificially thick unstable sheet film Film has its spreading artificially limited poor risk use models Part problem pouring microfilm maintain good control amount microfilm solution deposited water second photo microfilm saga series shows shortcut problem Uniform distribution solution has two elements rate fluid flow rate distribution Rate distribution requires sweep arm across tank rate pouring spout photo has set interchangeable different-sized orifices plan match orifice required pouring rate always use same orifice hatch film solution free learn uniform pouring motion Be sure keep nozzle uniformly close water prevent splash because splash makes bubbles create holes film sheet Here another film technique makes easier get good sheets film storage boxes traditional method attaching film hoop lap film over edge hoop much better way coat film side hoop rubber cement Let rubber cement solvents evaporate leaving tacky film hoop pressed down onto poured film adheres well enough film outside hoop can torn away can lift film immediately Also need lift smaller hoops pour normal-sized sheet put small hoops sheet will fit Tear loose lift normally Just precaution process tearing film around hoops may leave small scraps film water arent cleaned off may attach other sheets spoil otherwise good film One microfilm hint storage boxes last photos shows store lot film small area Hoops made fit closely half inch clearance end inside chosen storage box Use tapered blocks attached inside box sides back create self-centering slots will hold hoops cant touch other tapered blocks important contact hoops corners film hoop never touched Instead hoops held securely wedged between tapered blocks box construction gives safe reliable storage indefinite time uter users looks like more computer users out com puters often useful model design prob lems have developed program compute print out dimensions prop blocks ac cording formula published previous column January 1987 issue $1 will send listings Radio Shack Color Computer Model 100 lap top Commodore 64 Send request address given below Tenny PO Box 545 Richardson TX 75080 uration/Wainfan Continued page 59 Current mles count stab area below 50% wing area wing area n-area rule no longer rule book have able find out history rule am certain deleted because being used rather because flying wings winning too much out can give information history rule deleted still exists has inadvertently omitted rule book please contact ed wings An unconventional configuration receiving considerable interest real-airplane world lately joined wing joined-wing airplane has two wings joined tips form diamond shape rear wing root mounted fin front wing attached fuselage wings form diamond front view well top view wing tips same level behind other joined tip body end plate The joined wing invented Dr Julian Wolkovitch holds patent concept joined wing has two attractive advantages first wings brace TErebail RIC Idle-Bar Glow Plugs Long Short$1 89 Also . Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 Wayne NJ e A4 07470ff/j Model Aviation
Edition: Model Aviation - 1987/03
Page Numbers: 54, 55, 56, 146, 154
00 Tomy Toy Power Conversion inexpensive windup Tomy Toys around great deal have right kind mechanism make excellent timerfor FF engine sh utoffs WM Dunlop TOMY TOYS marvelous examples precision engineering manufacturing little windup clock mechanisms sturdy reliable can adapted technical requirements con version show herefor fuel shutoff Power modelsis lightweight consistent fairly easy make timer can used flood-off pinch-off setups Tomy toys have proper clock mechanism want has escapement controls un winding rate Some smaller simpler toys use escapement larger complex toys usually way really know whether type want dismantle mech anism toy look es capement Another way wind up dismantled mechanism release it goes zzzt immediately unwinds does have escapement toys come different shapes Robot Pac-man etc often can purchased sale little 70 cents Some toys held together screws some glued together revolution ratchet gear mechanism comes toy equals seven seconds Cat III engine usually too fast purposes runs Cat II Cat can slow down adding weight escapement can slowed enough Dismantling reassembly clock54 Model Aviation As didnt know Tomy Toy left finished shutoff timer toys innards right author shows details make own Disassembly Tomy Toy results pieces course clockwork assembly still intact just came toy point can tell correct kind disassembled clockwork mechanism kind Tomywindup power unit needed purposes has escapement slowed adding small amount weightto Left gearbox assembly showing gears ratchet escapement proper positions Right altered escapement lower right winding knob unfinished faceplate may cases telling harder doing disturbed come out diagram shows belong Cut two pieces A2 sheet lead fit escapement Scarify surfaces lead escapement glue together epoxy dont use cyanoacry work mechanism very difficult very careful can take apart disturbing innards Usually arent lucky detailed oversize assembly drawings shown first step push winding shaft through deburred piece Yi6 music wire about 2 long Leave wire usually gear part toy mechanism clockwork mechanism can used release disk fastened winding knob no holes shown drawing drill some Location holes overly critical function lock epoxy stronger joint Make 045 step shown Use feeler gauge dimension overly critical Glue disk shaft winding knob slow-set epoxy 5-mm epoxy isnt strong enough Remove top prying up gently screwdriver slots shown compartment spring re tained usually pops out Ill tell put back center partition now can easily lifted out exposing gear case Lift out escapement part will alter other parts need late CyA fuel-proof Make sure lead will interfere frame rotating parts amount lead used will determine speed rotation cut-and-try proposition varies parMarch 1987 55 trickiest parts clockwork apparatus spring leftthe cover has assembled overthe spring before winding spring place right spring has assembled spring compartment cover now can easily slipped place side view finished timer shows wire engagesthe escapement stops clockfrom unwinding whilethe engine being starteddisengaged before launching ticular clockwork mechanism Make very sure no glue gets bearings escapement Reassemble mechanism per diagram Assemble gears es capement gear case install center partition Hold spring place about three turns inside rest outside shown Slip top place very carefully see picture big hands can everyone ought able top should come down easily force Make sure spring does hang up frame top near its home position will snap place Use bottom gear case before assembly template trace piece /64 plywood showing locations bearing holes Drill -in clearance holes locations Glue ply onto bottom filler between bottom case brass plate gears float up down filler gears would rub brass plate operation would erratic Make up brass plate drill shown Cut brass tubing solder place Make sure have good solder joints use Stay Brite solder flux use rosin-core solder does give strongest bond Take care setting up shutoff wire should slide down over edge escapement tight enginebut should push hard against enough hold against vibration theContinued page 146 DRILL 46DIA HOLES WINDING KNOB \ / IN SLOTTED DISC Y 1/16 SLOT 0 r iifl cki 1045 UjI 0 WIRE TRIP ARM R DOTTED LINE SHOWS PATH OF SPRING #43 DRILL GEAR CASE FILE CLEAR FOR 3 PLACES 0 MAIN DRIVE GEAR RATCHET #51DRILL /4IDLE GEAR 2 PLACES \ ___ IDLE GEAR IDLE GEAR 2VINYL /ESCAPEMENT STRIPS NOTEGEAR IS SLIGHTLY LARGER THAN GEAR k4 PLY TO OUTSIDE___________ SURF OF GEARCASE DOTTED LINE DENOTES GEAR DOWN IN CASE EPOXY-\J ESCAPEMENT RY ADD LEA AS NECE 4TE THIS END IS DOWN IN GEARCASE COVER SPRING COMPARTMENT GEARCASE ED Y J\r#256 BRASSBOLT NUT PLATE 1 BRASS TUBG /2PL ACES 180 \/-j/J2WIRE STOP 580OFF P05 010 RRASS PlATE 56 Model Aviation -J -J COVER Modified Tomy Toy engine timer authors hA Free Flights Its rigged pinch off fuel line external bladder pressure tank Timer weighs just 62 grams 2 0 0 0 NG COMPARTMENT x OPEN UP SLOT FOR #256 BOLT THRU -s * Special Detergents help prevent varnish promote clean burning st Preventatives protect expensive engines corrosion CHAMPION 2-STROKE FUEL FREE SHIPPING ON ORDERS OVER $1500 PINT QUART GALLON 55 GAL DRUM 0% Nitromethane $315$450$1050$19000 5% Nitromethane $365$525$1250$25800 10% Nitromethane $415$550$1450$32500t 15% Nitromethane$430$625$1650$38500 25% Nitromethane$495$750$2095$52000 35% Nitromethane$575$875$2495$66000 SIGPREMIUM4-STROKE FUEL 10% Nitromethane $415$550$1395$295 00 15% Nitromethane $425$625$1595$359 00 THE CHOICE OF CHAMPION FLYERS over 20 years SIG has blending fuel finest quality ingredients available alcohol pure very best grade available nitromethane use 100% pure get honest portion based % volume maximum lubrication get perfect 50/50 blend Bakers AA Castor Oil Klotz Techniplate Racing Oil protect expensive engines finest quality fuel can made price Dont take word try some tudge yourself dealer first available order direct Call 800-247-5008 toll free orders Latest Catalog $300 SIG MANUFACTURING CO Montezuma IA 50171 Z Pncs ssbiext cianae nrrihesi notes FL YME~j h WINDSOCK Wind Direction 8 inches, Anytime Anywhereplus tails Attaches antenna mast Iclips includedl lable frequency colors IGive frequency number orderl ign orders add S & H 51 50 Calif Residenta add 6% tax la Products PO Eex 484 Lake Elslnere CA 92330 RC Giant Scale/de Vries Continued page 51 With bit checking think youll find what youre looking among mail-order Giant Scale drawings Give tryyoull like scratch building ere thanks Jerry Smith photographer par excellence photos accompanying monthss column Ive slowed up bit surgery Jerry came through like US Marines John de Vries 4610MoffattLn Colorado Springs CO 80915 y Timer/Dunlop Continued page 56 down escapement After other end wire bent hold place crimp tubing blunt chisel Make tight enough hold arm place against engine vi bration tight cannot move Finish face brass plate wish used white Superpoxy /32 black vinyl strips graduations seal strips clear Superpoxy gradu ations indicators exact seconds Glue faceplate / ply install 2-56 roundhead screw nut use Loctite nut Dont tighten nut too much will slow mechanism just snug up Remove piece lie music wire pushing through partially winding knob shaft Put very small amount slow-set CyA shaft about /32 shoulder release disk Plunge shaft home quickly Immediately wind unit partially release unwind repeatedly few minutes help prevent CyA freezing works Once glue has set carefully wind unit fullybut dont force overwind Note full-wind position wind position time Overwinding will cttuse shaft slip slips looser gets From full winds shaft should unwind 6 7 turns Any less means hung up somewhere will have freed first revolution full winds should approximately seven nine seconds runs too fast add lead escape ment being very sure lead causes no interference unit can taken apart removing winding shaft faceplate This timer can used flood-off system putting tubing use very light silicon tubing under release arm pinch-off system would have line running upright arm shown Keep line low faceplate ease tension timer spring The unit very light weighs just 62 grams reliable holds up well Try Continued page 154 146 Model Aviation PIPER SUPER CUB OUATER SCALE QUADRA 4CYCLE SEND $200 FOR COMPLETE CATALOG OF FINE KITS IKON NWST PO Hox 566 Auburn WA 98071 206 941-8248 WHEN YOU FORGET\OUR UNITS REMEMBER RC System NiCd Batteries chargers need package s48VRxand96V Tx packs$17995FO Plus $5 S&H Others available write llBatteries kier $2495 ForPlus $2 S&H-t Regular Model$3995 F field kit small Plus $2 S&H electric boat batteriesSpecify 612 24V y Duty Model$4995 sport winch large boat andPlus $250 S&H electric power charging batteriesSpecify 6 12V ProductsSASE br informausriPO Box 221 CaRa 5-987-5924Deaier inquiries invited canton SD 57013 Tomy Timer/Dunlop Continued page 146 keep fuel off it wont slow down unless gets really messy happens take apart clean al cohol get ready go again ndoor/Tenny Continued page 57 largest film hoop hope fill reason properly-poured film needs room spread naturally Cramped pouring space causes either very uneven film color artificially thick unstable sheet film Film has its spreading artificially limited poor risk use models Part problem pouring microfilm maintain good control amount microfilm solution deposited water second photo microfilm saga series shows shortcut problem Uniform distribution solution has two elements rate fluid flow rate distribution Rate distribution requires sweep arm across tank rate pouring spout photo has set interchangeable different-sized orifices plan match orifice required pouring rate always use same orifice hatch film solution free learn uniform pouring motion Be sure keep nozzle uniformly close water prevent splash because splash makes bubbles create holes film sheet Here another film technique makes easier get good sheets film storage boxes traditional method attaching film hoop lap film over edge hoop much better way coat film side hoop rubber cement Let rubber cement solvents evaporate leaving tacky film hoop pressed down onto poured film adheres well enough film outside hoop can torn away can lift film immediately Also need lift smaller hoops pour normal-sized sheet put small hoops sheet will fit Tear loose lift normally Just precaution process tearing film around hoops may leave small scraps film water arent cleaned off may attach other sheets spoil otherwise good film One microfilm hint storage boxes last photos shows store lot film small area Hoops made fit closely half inch clearance end inside chosen storage box Use tapered blocks attached inside box sides back create self-centering slots will hold hoops cant touch other tapered blocks important contact hoops corners film hoop never touched Instead hoops held securely wedged between tapered blocks box construction gives safe reliable storage indefinite time uter users looks like more computer users out com puters often useful model design prob lems have developed program compute print out dimensions prop blocks ac cording formula published previous column January 1987 issue $1 will send listings Radio Shack Color Computer Model 100 lap top Commodore 64 Send request address given below Tenny PO Box 545 Richardson TX 75080 uration/Wainfan Continued page 59 Current mles count stab area below 50% wing area wing area n-area rule no longer rule book have able find out history rule am certain deleted because being used rather because flying wings winning too much out can give information history rule deleted still exists has inadvertently omitted rule book please contact ed wings An unconventional configuration receiving considerable interest real-airplane world lately joined wing joined-wing airplane has two wings joined tips form diamond shape rear wing root mounted fin front wing attached fuselage wings form diamond front view well top view wing tips same level behind other joined tip body end plate The joined wing invented Dr Julian Wolkovitch holds patent concept joined wing has two attractive advantages first wings brace TErebail RIC Idle-Bar Glow Plugs Long Short$1 89 Also . Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 Wayne NJ e A4 07470ff/j Model Aviation
Edition: Model Aviation - 1987/03
Page Numbers: 54, 55, 56, 146, 154
00 Tomy Toy Power Conversion inexpensive windup Tomy Toys around great deal have right kind mechanism make excellent timerfor FF engine sh utoffs WM Dunlop TOMY TOYS marvelous examples precision engineering manufacturing little windup clock mechanisms sturdy reliable can adapted technical requirements con version show herefor fuel shutoff Power modelsis lightweight consistent fairly easy make timer can used flood-off pinch-off setups Tomy toys have proper clock mechanism want has escapement controls un winding rate Some smaller simpler toys use escapement larger complex toys usually way really know whether type want dismantle mech anism toy look es capement Another way wind up dismantled mechanism release it goes zzzt immediately unwinds does have escapement toys come different shapes Robot Pac-man etc often can purchased sale little 70 cents Some toys held together screws some glued together revolution ratchet gear mechanism comes toy equals seven seconds Cat III engine usually too fast purposes runs Cat II Cat can slow down adding weight escapement can slowed enough Dismantling reassembly clock54 Model Aviation As didnt know Tomy Toy left finished shutoff timer toys innards right author shows details make own Disassembly Tomy Toy results pieces course clockwork assembly still intact just came toy point can tell correct kind disassembled clockwork mechanism kind Tomywindup power unit needed purposes has escapement slowed adding small amount weightto Left gearbox assembly showing gears ratchet escapement proper positions Right altered escapement lower right winding knob unfinished faceplate may cases telling harder doing disturbed come out diagram shows belong Cut two pieces A2 sheet lead fit escapement Scarify surfaces lead escapement glue together epoxy dont use cyanoacry work mechanism very difficult very careful can take apart disturbing innards Usually arent lucky detailed oversize assembly drawings shown first step push winding shaft through deburred piece Yi6 music wire about 2 long Leave wire usually gear part toy mechanism clockwork mechanism can used release disk fastened winding knob no holes shown drawing drill some Location holes overly critical function lock epoxy stronger joint Make 045 step shown Use feeler gauge dimension overly critical Glue disk shaft winding knob slow-set epoxy 5-mm epoxy isnt strong enough Remove top prying up gently screwdriver slots shown compartment spring re tained usually pops out Ill tell put back center partition now can easily lifted out exposing gear case Lift out escapement part will alter other parts need late CyA fuel-proof Make sure lead will interfere frame rotating parts amount lead used will determine speed rotation cut-and-try proposition varies parMarch 1987 55 trickiest parts clockwork apparatus spring leftthe cover has assembled overthe spring before winding spring place right spring has assembled spring compartment cover now can easily slipped place side view finished timer shows wire engagesthe escapement stops clockfrom unwinding whilethe engine being starteddisengaged before launching ticular clockwork mechanism Make very sure no glue gets bearings escapement Reassemble mechanism per diagram Assemble gears es capement gear case install center partition Hold spring place about three turns inside rest outside shown Slip top place very carefully see picture big hands can everyone ought able top should come down easily force Make sure spring does hang up frame top near its home position will snap place Use bottom gear case before assembly template trace piece /64 plywood showing locations bearing holes Drill -in clearance holes locations Glue ply onto bottom filler between bottom case brass plate gears float up down filler gears would rub brass plate operation would erratic Make up brass plate drill shown Cut brass tubing solder place Make sure have good solder joints use Stay Brite solder flux use rosin-core solder does give strongest bond Take care setting up shutoff wire should slide down over edge escapement tight enginebut should push hard against enough hold against vibration theContinued page 146 DRILL 46DIA HOLES WINDING KNOB \ / IN SLOTTED DISC Y 1/16 SLOT 0 r iifl cki 1045 UjI 0 WIRE TRIP ARM R DOTTED LINE SHOWS PATH OF SPRING #43 DRILL GEAR CASE FILE CLEAR FOR 3 PLACES 0 MAIN DRIVE GEAR RATCHET #51DRILL /4IDLE GEAR 2 PLACES \ ___ IDLE GEAR IDLE GEAR 2VINYL /ESCAPEMENT STRIPS NOTEGEAR IS SLIGHTLY LARGER THAN GEAR k4 PLY TO OUTSIDE___________ SURF OF GEARCASE DOTTED LINE DENOTES GEAR DOWN IN CASE EPOXY-\J ESCAPEMENT RY ADD LEA AS NECE 4TE THIS END IS DOWN IN GEARCASE COVER SPRING COMPARTMENT GEARCASE ED Y J\r#256 BRASSBOLT NUT PLATE 1 BRASS TUBG /2PL ACES 180 \/-j/J2WIRE STOP 580OFF P05 010 RRASS PlATE 56 Model Aviation -J -J COVER Modified Tomy Toy engine timer authors hA Free Flights Its rigged pinch off fuel line external bladder pressure tank Timer weighs just 62 grams 2 0 0 0 NG COMPARTMENT x OPEN UP SLOT FOR #256 BOLT THRU -s * Special Detergents help prevent varnish promote clean burning st Preventatives protect expensive engines corrosion CHAMPION 2-STROKE FUEL FREE SHIPPING ON ORDERS OVER $1500 PINT QUART GALLON 55 GAL DRUM 0% Nitromethane $315$450$1050$19000 5% Nitromethane $365$525$1250$25800 10% Nitromethane $415$550$1450$32500t 15% Nitromethane$430$625$1650$38500 25% Nitromethane$495$750$2095$52000 35% Nitromethane$575$875$2495$66000 SIGPREMIUM4-STROKE FUEL 10% Nitromethane $415$550$1395$295 00 15% Nitromethane $425$625$1595$359 00 THE CHOICE OF CHAMPION FLYERS over 20 years SIG has blending fuel finest quality ingredients available alcohol pure very best grade available nitromethane use 100% pure get honest portion based % volume maximum lubrication get perfect 50/50 blend Bakers AA Castor Oil Klotz Techniplate Racing Oil protect expensive engines finest quality fuel can made price Dont take word try some tudge yourself dealer first available order direct Call 800-247-5008 toll free orders Latest Catalog $300 SIG MANUFACTURING CO Montezuma IA 50171 Z Pncs ssbiext cianae nrrihesi notes FL YME~j h WINDSOCK Wind Direction 8 inches, Anytime Anywhereplus tails Attaches antenna mast Iclips includedl lable frequency colors IGive frequency number orderl ign orders add S & H 51 50 Calif Residenta add 6% tax la Products PO Eex 484 Lake Elslnere CA 92330 RC Giant Scale/de Vries Continued page 51 With bit checking think youll find what youre looking among mail-order Giant Scale drawings Give tryyoull like scratch building ere thanks Jerry Smith photographer par excellence photos accompanying monthss column Ive slowed up bit surgery Jerry came through like US Marines John de Vries 4610MoffattLn Colorado Springs CO 80915 y Timer/Dunlop Continued page 56 down escapement After other end wire bent hold place crimp tubing blunt chisel Make tight enough hold arm place against engine vi bration tight cannot move Finish face brass plate wish used white Superpoxy /32 black vinyl strips graduations seal strips clear Superpoxy gradu ations indicators exact seconds Glue faceplate / ply install 2-56 roundhead screw nut use Loctite nut Dont tighten nut too much will slow mechanism just snug up Remove piece lie music wire pushing through partially winding knob shaft Put very small amount slow-set CyA shaft about /32 shoulder release disk Plunge shaft home quickly Immediately wind unit partially release unwind repeatedly few minutes help prevent CyA freezing works Once glue has set carefully wind unit fullybut dont force overwind Note full-wind position wind position time Overwinding will cttuse shaft slip slips looser gets From full winds shaft should unwind 6 7 turns Any less means hung up somewhere will have freed first revolution full winds should approximately seven nine seconds runs too fast add lead escape ment being very sure lead causes no interference unit can taken apart removing winding shaft faceplate This timer can used flood-off system putting tubing use very light silicon tubing under release arm pinch-off system would have line running upright arm shown Keep line low faceplate ease tension timer spring The unit very light weighs just 62 grams reliable holds up well Try Continued page 154 146 Model Aviation PIPER SUPER CUB OUATER SCALE QUADRA 4CYCLE SEND $200 FOR COMPLETE CATALOG OF FINE KITS IKON NWST PO Hox 566 Auburn WA 98071 206 941-8248 WHEN YOU FORGET\OUR UNITS REMEMBER RC System NiCd Batteries chargers need package s48VRxand96V Tx packs$17995FO Plus $5 S&H Others available write llBatteries kier $2495 ForPlus $2 S&H-t Regular Model$3995 F field kit small Plus $2 S&H electric boat batteriesSpecify 612 24V y Duty Model$4995 sport winch large boat andPlus $250 S&H electric power charging batteriesSpecify 6 12V ProductsSASE br informausriPO Box 221 CaRa 5-987-5924Deaier inquiries invited canton SD 57013 Tomy Timer/Dunlop Continued page 146 keep fuel off it wont slow down unless gets really messy happens take apart clean al cohol get ready go again ndoor/Tenny Continued page 57 largest film hoop hope fill reason properly-poured film needs room spread naturally Cramped pouring space causes either very uneven film color artificially thick unstable sheet film Film has its spreading artificially limited poor risk use models Part problem pouring microfilm maintain good control amount microfilm solution deposited water second photo microfilm saga series shows shortcut problem Uniform distribution solution has two elements rate fluid flow rate distribution Rate distribution requires sweep arm across tank rate pouring spout photo has set interchangeable different-sized orifices plan match orifice required pouring rate always use same orifice hatch film solution free learn uniform pouring motion Be sure keep nozzle uniformly close water prevent splash because splash makes bubbles create holes film sheet Here another film technique makes easier get good sheets film storage boxes traditional method attaching film hoop lap film over edge hoop much better way coat film side hoop rubber cement Let rubber cement solvents evaporate leaving tacky film hoop pressed down onto poured film adheres well enough film outside hoop can torn away can lift film immediately Also need lift smaller hoops pour normal-sized sheet put small hoops sheet will fit Tear loose lift normally Just precaution process tearing film around hoops may leave small scraps film water arent cleaned off may attach other sheets spoil otherwise good film One microfilm hint storage boxes last photos shows store lot film small area Hoops made fit closely half inch clearance end inside chosen storage box Use tapered blocks attached inside box sides back create self-centering slots will hold hoops cant touch other tapered blocks important contact hoops corners film hoop never touched Instead hoops held securely wedged between tapered blocks box construction gives safe reliable storage indefinite time uter users looks like more computer users out com puters often useful model design prob lems have developed program compute print out dimensions prop blocks ac cording formula published previous column January 1987 issue $1 will send listings Radio Shack Color Computer Model 100 lap top Commodore 64 Send request address given below Tenny PO Box 545 Richardson TX 75080 uration/Wainfan Continued page 59 Current mles count stab area below 50% wing area wing area n-area rule no longer rule book have able find out history rule am certain deleted because being used rather because flying wings winning too much out can give information history rule deleted still exists has inadvertently omitted rule book please contact ed wings An unconventional configuration receiving considerable interest real-airplane world lately joined wing joined-wing airplane has two wings joined tips form diamond shape rear wing root mounted fin front wing attached fuselage wings form diamond front view well top view wing tips same level behind other joined tip body end plate The joined wing invented Dr Julian Wolkovitch holds patent concept joined wing has two attractive advantages first wings brace TErebail RIC Idle-Bar Glow Plugs Long Short$1 89 Also . Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 Wayne NJ e A4 07470ff/j Model Aviation
Edition: Model Aviation - 1987/03
Page Numbers: 54, 55, 56, 146, 154
00 Tomy Toy Power Conversion inexpensive windup Tomy Toys around great deal have right kind mechanism make excellent timerfor FF engine sh utoffs WM Dunlop TOMY TOYS marvelous examples precision engineering manufacturing little windup clock mechanisms sturdy reliable can adapted technical requirements con version show herefor fuel shutoff Power modelsis lightweight consistent fairly easy make timer can used flood-off pinch-off setups Tomy toys have proper clock mechanism want has escapement controls un winding rate Some smaller simpler toys use escapement larger complex toys usually way really know whether type want dismantle mech anism toy look es capement Another way wind up dismantled mechanism release it goes zzzt immediately unwinds does have escapement toys come different shapes Robot Pac-man etc often can purchased sale little 70 cents Some toys held together screws some glued together revolution ratchet gear mechanism comes toy equals seven seconds Cat III engine usually too fast purposes runs Cat II Cat can slow down adding weight escapement can slowed enough Dismantling reassembly clock54 Model Aviation As didnt know Tomy Toy left finished shutoff timer toys innards right author shows details make own Disassembly Tomy Toy results pieces course clockwork assembly still intact just came toy point can tell correct kind disassembled clockwork mechanism kind Tomywindup power unit needed purposes has escapement slowed adding small amount weightto Left gearbox assembly showing gears ratchet escapement proper positions Right altered escapement lower right winding knob unfinished faceplate may cases telling harder doing disturbed come out diagram shows belong Cut two pieces A2 sheet lead fit escapement Scarify surfaces lead escapement glue together epoxy dont use cyanoacry work mechanism very difficult very careful can take apart disturbing innards Usually arent lucky detailed oversize assembly drawings shown first step push winding shaft through deburred piece Yi6 music wire about 2 long Leave wire usually gear part toy mechanism clockwork mechanism can used release disk fastened winding knob no holes shown drawing drill some Location holes overly critical function lock epoxy stronger joint Make 045 step shown Use feeler gauge dimension overly critical Glue disk shaft winding knob slow-set epoxy 5-mm epoxy isnt strong enough Remove top prying up gently screwdriver slots shown compartment spring re tained usually pops out Ill tell put back center partition now can easily lifted out exposing gear case Lift out escapement part will alter other parts need late CyA fuel-proof Make sure lead will interfere frame rotating parts amount lead used will determine speed rotation cut-and-try proposition varies parMarch 1987 55 trickiest parts clockwork apparatus spring leftthe cover has assembled overthe spring before winding spring place right spring has assembled spring compartment cover now can easily slipped place side view finished timer shows wire engagesthe escapement stops clockfrom unwinding whilethe engine being starteddisengaged before launching ticular clockwork mechanism Make very sure no glue gets bearings escapement Reassemble mechanism per diagram Assemble gears es capement gear case install center partition Hold spring place about three turns inside rest outside shown Slip top place very carefully see picture big hands can everyone ought able top should come down easily force Make sure spring does hang up frame top near its home position will snap place Use bottom gear case before assembly template trace piece /64 plywood showing locations bearing holes Drill -in clearance holes locations Glue ply onto bottom filler between bottom case brass plate gears float up down filler gears would rub brass plate operation would erratic Make up brass plate drill shown Cut brass tubing solder place Make sure have good solder joints use Stay Brite solder flux use rosin-core solder does give strongest bond Take care setting up shutoff wire should slide down over edge escapement tight enginebut should push hard against enough hold against vibration theContinued page 146 DRILL 46DIA HOLES WINDING KNOB \ / IN SLOTTED DISC Y 1/16 SLOT 0 r iifl cki 1045 UjI 0 WIRE TRIP ARM R DOTTED LINE SHOWS PATH OF SPRING #43 DRILL GEAR CASE FILE CLEAR FOR 3 PLACES 0 MAIN DRIVE GEAR RATCHET #51DRILL /4IDLE GEAR 2 PLACES \ ___ IDLE GEAR IDLE GEAR 2VINYL /ESCAPEMENT STRIPS NOTEGEAR IS SLIGHTLY LARGER THAN GEAR k4 PLY TO OUTSIDE___________ SURF OF GEARCASE DOTTED LINE DENOTES GEAR DOWN IN CASE EPOXY-\J ESCAPEMENT RY ADD LEA AS NECE 4TE THIS END IS DOWN IN GEARCASE COVER SPRING COMPARTMENT GEARCASE ED Y J\r#256 BRASSBOLT NUT PLATE 1 BRASS TUBG /2PL ACES 180 \/-j/J2WIRE STOP 580OFF P05 010 RRASS PlATE 56 Model Aviation -J -J COVER Modified Tomy Toy engine timer authors hA Free Flights Its rigged pinch off fuel line external bladder pressure tank Timer weighs just 62 grams 2 0 0 0 NG COMPARTMENT x OPEN UP SLOT FOR #256 BOLT THRU -s * Special Detergents help prevent varnish promote clean burning st Preventatives protect expensive engines corrosion CHAMPION 2-STROKE FUEL FREE SHIPPING ON ORDERS OVER $1500 PINT QUART GALLON 55 GAL DRUM 0% Nitromethane $315$450$1050$19000 5% Nitromethane $365$525$1250$25800 10% Nitromethane $415$550$1450$32500t 15% Nitromethane$430$625$1650$38500 25% Nitromethane$495$750$2095$52000 35% Nitromethane$575$875$2495$66000 SIGPREMIUM4-STROKE FUEL 10% Nitromethane $415$550$1395$295 00 15% Nitromethane $425$625$1595$359 00 THE CHOICE OF CHAMPION FLYERS over 20 years SIG has blending fuel finest quality ingredients available alcohol pure very best grade available nitromethane use 100% pure get honest portion based % volume maximum lubrication get perfect 50/50 blend Bakers AA Castor Oil Klotz Techniplate Racing Oil protect expensive engines finest quality fuel can made price Dont take word try some tudge yourself dealer first available order direct Call 800-247-5008 toll free orders Latest Catalog $300 SIG MANUFACTURING CO Montezuma IA 50171 Z Pncs ssbiext cianae nrrihesi notes FL YME~j h WINDSOCK Wind Direction 8 inches, Anytime Anywhereplus tails Attaches antenna mast Iclips includedl lable frequency colors IGive frequency number orderl ign orders add S & H 51 50 Calif Residenta add 6% tax la Products PO Eex 484 Lake Elslnere CA 92330 RC Giant Scale/de Vries Continued page 51 With bit checking think youll find what youre looking among mail-order Giant Scale drawings Give tryyoull like scratch building ere thanks Jerry Smith photographer par excellence photos accompanying monthss column Ive slowed up bit surgery Jerry came through like US Marines John de Vries 4610MoffattLn Colorado Springs CO 80915 y Timer/Dunlop Continued page 56 down escapement After other end wire bent hold place crimp tubing blunt chisel Make tight enough hold arm place against engine vi bration tight cannot move Finish face brass plate wish used white Superpoxy /32 black vinyl strips graduations seal strips clear Superpoxy gradu ations indicators exact seconds Glue faceplate / ply install 2-56 roundhead screw nut use Loctite nut Dont tighten nut too much will slow mechanism just snug up Remove piece lie music wire pushing through partially winding knob shaft Put very small amount slow-set CyA shaft about /32 shoulder release disk Plunge shaft home quickly Immediately wind unit partially release unwind repeatedly few minutes help prevent CyA freezing works Once glue has set carefully wind unit fullybut dont force overwind Note full-wind position wind position time Overwinding will cttuse shaft slip slips looser gets From full winds shaft should unwind 6 7 turns Any less means hung up somewhere will have freed first revolution full winds should approximately seven nine seconds runs too fast add lead escape ment being very sure lead causes no interference unit can taken apart removing winding shaft faceplate This timer can used flood-off system putting tubing use very light silicon tubing under release arm pinch-off system would have line running upright arm shown Keep line low faceplate ease tension timer spring The unit very light weighs just 62 grams reliable holds up well Try Continued page 154 146 Model Aviation PIPER SUPER CUB OUATER SCALE QUADRA 4CYCLE SEND $200 FOR COMPLETE CATALOG OF FINE KITS IKON NWST PO Hox 566 Auburn WA 98071 206 941-8248 WHEN YOU FORGET\OUR UNITS REMEMBER RC System NiCd Batteries chargers need package s48VRxand96V Tx packs$17995FO Plus $5 S&H Others available write llBatteries kier $2495 ForPlus $2 S&H-t Regular Model$3995 F field kit small Plus $2 S&H electric boat batteriesSpecify 612 24V y Duty Model$4995 sport winch large boat andPlus $250 S&H electric power charging batteriesSpecify 6 12V ProductsSASE br informausriPO Box 221 CaRa 5-987-5924Deaier inquiries invited canton SD 57013 Tomy Timer/Dunlop Continued page 146 keep fuel off it wont slow down unless gets really messy happens take apart clean al cohol get ready go again ndoor/Tenny Continued page 57 largest film hoop hope fill reason properly-poured film needs room spread naturally Cramped pouring space causes either very uneven film color artificially thick unstable sheet film Film has its spreading artificially limited poor risk use models Part problem pouring microfilm maintain good control amount microfilm solution deposited water second photo microfilm saga series shows shortcut problem Uniform distribution solution has two elements rate fluid flow rate distribution Rate distribution requires sweep arm across tank rate pouring spout photo has set interchangeable different-sized orifices plan match orifice required pouring rate always use same orifice hatch film solution free learn uniform pouring motion Be sure keep nozzle uniformly close water prevent splash because splash makes bubbles create holes film sheet Here another film technique makes easier get good sheets film storage boxes traditional method attaching film hoop lap film over edge hoop much better way coat film side hoop rubber cement Let rubber cement solvents evaporate leaving tacky film hoop pressed down onto poured film adheres well enough film outside hoop can torn away can lift film immediately Also need lift smaller hoops pour normal-sized sheet put small hoops sheet will fit Tear loose lift normally Just precaution process tearing film around hoops may leave small scraps film water arent cleaned off may attach other sheets spoil otherwise good film One microfilm hint storage boxes last photos shows store lot film small area Hoops made fit closely half inch clearance end inside chosen storage box Use tapered blocks attached inside box sides back create self-centering slots will hold hoops cant touch other tapered blocks important contact hoops corners film hoop never touched Instead hoops held securely wedged between tapered blocks box construction gives safe reliable storage indefinite time uter users looks like more computer users out com puters often useful model design prob lems have developed program compute print out dimensions prop blocks ac cording formula published previous column January 1987 issue $1 will send listings Radio Shack Color Computer Model 100 lap top Commodore 64 Send request address given below Tenny PO Box 545 Richardson TX 75080 uration/Wainfan Continued page 59 Current mles count stab area below 50% wing area wing area n-area rule no longer rule book have able find out history rule am certain deleted because being used rather because flying wings winning too much out can give information history rule deleted still exists has inadvertently omitted rule book please contact ed wings An unconventional configuration receiving considerable interest real-airplane world lately joined wing joined-wing airplane has two wings joined tips form diamond shape rear wing root mounted fin front wing attached fuselage wings form diamond front view well top view wing tips same level behind other joined tip body end plate The joined wing invented Dr Julian Wolkovitch holds patent concept joined wing has two attractive advantages first wings brace TErebail RIC Idle-Bar Glow Plugs Long Short$1 89 Also . Traditional line non-idle bar Glow Plugs Six Types 3 Heat Ranges High Performance Glow Element Blow Proof Seal Only $149 Swanson Associates PO Box 151 Wayne NJ e A4 07470ff/j Model Aviation