C SPEED Gene Hempel THIS column continuation the April issue describing rework needed set up Supertigre X-29 suction fuel feed hope time read previously described engine rework finished venturi next part requires careful attention Disassemble needle valve assembly venturi Set needle valve assembly aside later use Machine insert type aluminum material prefer 2024-16 fit inside stock venturi bore Drill 5/16 30__________ 0 ring grooves use X-15 header 0-rings 750 id.485 id 070l045dpl -- Fhole through insert hole dimension has found best suited good suction X-29 engine Use small amount pressure press insert venturi opening force it could split venturi air intake side insert machine bevel edge will form general contour venturi makes smooth airflow Check Fig 1 details Next work needle valve assembly Dave Layman used Rossi 15 spray bar Supertigre needle entire assembly Mea sure outside dimensions spray bar dimension drill size hole through X-40 needle valve seat Insert spray bar drilled needle valve seat solder together Check very carefully no solder blocking fuel passage Check Fig 2 clarification assembly next opera tion will machine tuned pipe header Use dimensions drawing header Any type aluminum material can used header designed use Rossi 29 pipe Dave Layman does use OPS 29 pipe because has found 500 rpm slower Rossi pipe Test bench operation first thing mix liii X-40 needle valve seal drill hole lv size 01 needle valve hod Depicted new tuned-pipe header must fabricated scratch modified needle valve seat information article Figures 1 2 needle valve seat some fuel following formula 75% nitro 20% oil UCON 2270 Klotz 5% methanol use propylene oxide fuel testing flying would likely burn engine will obtain consistent engine runs Use 7-10 Rev-Up prop testing purposes Run approximately 6 oz fuel mix fast twocycle operation Use pen bladder surgical tubing tank bladder test bench operation lean out fuel mixture engine time Bench running seat piston sleeve properly Let engine cool down between run Utilize good tachometer trust engine should tach approximately 19000 rpm open exhaust next step connect pipe header engine bench testing set pipe length 14 inches measuring center glow plug end pipe pipe secured wont blow off now ready test-run engine Start sure keep running rich leaning out needle valve slowly monitor rpm until maximum attained let run longer 10 15 seconds peak rpm should tach 22000 22500 peak Any great doesnt reach rpm recheck modifi cation work try again testing finished sure oil engine some Marvel Mystery Oil rust bearing Place engine plastic Continued page 110 Figure3showsthepowerpod readyto mountin model Take careful note placement tank overflow tube its cap 4-40 bolt thru pan Cots tehes 1/0 brass I/A Make teak tram 008 skeet metal 3/4tap view IC 30 CCaide view can drill 1/0 boles alter Implate bent abapa 7/0rem tube 1/8 above avd I/O ted 1 lead lobe 3/03/8avertise lobetin tni TANKIrvalview LIL2IL1/8 CARS BORE 312 recommended B speed sucteon feed tank Supertigre X-29 has reworked descrebed en column Gene has interesting comments thts tank plus speed tips month June 1980 35 Figure 1 above Figure 2 right referenced column Right close up spraybar assembly soldered modified X-40 needle valve seat Above view needle valve assembly installed newly fabricated ven turi insert Details column 640 ed DRESS FOR THE OCCASION Get ready warm RC weather high-quality Tee Shirts BILL EVANS Silkscreened 100% cotten multi-colors theyre available sizes 5 M L XL Choose ELECK RIDER/Yellow ASTRON/Light Blue SIMITAR 540/Tan SEND $695 plus $100 shipping ch1 COREFIIM new instant dry adhesive PA wide 36 yard rolls $895 also offer following high-quality RC kits Simitar Sport Slope Squire Saracen Seville Winterhawk Hot Rock Simitar 540 Write complete brochure fine products x E ng ala strong process Eliminates gaps between control surfaces better performance 35/$189 BILL EVANS ~AIRCRAFT 20825 ROSCOE BLVD CANOGA PARK CA 91306/ TELEPHONE 213 7090894 able YAK series fighters Lavochkins 35 ft wingspan twin-row eighteen cylinder air-cooled engine 1850 hp Top speed 390 mph Armament consisted twin 20mm cannons six 55 lb rockets under wings Another unique feature automatic leading edge slats popped out critical airspeeds eliminate wingtip stalls Al talks about model LA-5 Lavochkin since its completion has won seven first place trophies both flying static competitions An original design adventure build document always draws comments now well known area own personal total airplane wingspan 33 inches weighs 1 lb 12 oz engine has no throttle bad mistake Split flaps actuated aileron bellcranks pushrods internally mounted horn Leading edge slats actuated another set bellcranks rods held open position compression springs until pulled Bomb release nothing simple lynch-pin actuated fifth line model flies great Being light overpowered goes sound scale speed 62 ft lines drag five control lines Model sheeted 1/32 sheet balsa painted mixture Aero Gloss flat dopes An idiosyncrasy real LA-S bounced badly during landings Believe scale aspect original has faithfully duplicated way big ambition now build model improving Lavochkin take Nats Id kind like compete against after its over could sit shade talk about airplanes tell other what did wrong blew last flight last time Nationals held Ohio Dayton 1976 turnout CL Sport Precision Scale nothing short spectacular year Nats scheduled Wilming ton OH excitement could just great Cleveland Dayton Cincinnati have always hotbeds ukie scale activity Chicago Indianapolis New York etc also well within driving range year will have two days flying should eliminate chance repeat last years windy blowout Lincoln live within range Wilmington have entertaining inner thoughts someday coming Natsdo now means bring along model enter Lets hear tired old excuse NATS airplane good enough Bring along give best shot may surprised well can know youll have good time Ed note sure pre register Mike Gretz Box 162 Montezuma IA 50171 CL Speed/Hempel Continued page 35 bag set aside completes engine modification instruc tions suction tank B speed has blessing compared pen bladders past using pen bladders pipe engines would lucky get run per engine comeback tank system has made B speed fun fly once Study drawing construction tank very carefully vary draw ing tank system works exceptionally well designed building tank sure radius bends tubing eliminate flat spots kinks means keep cotton pickin pliers off tubing Check drawing feed tube position Feed tube should soldered approximately 10 degree angle up horizontal Also sure feed tube points straight spray bar elbow may have resolder position elbow match up feed tube tank finished clean inside thoroughly lacquer thinner forget pressure check tank potential leaks next operation fit tank speed pan Use some type hand grinder mill remove unnecessary metal allow placement fuel tank Take special care fuel tank will mount level straight Check height tank does interfere models control system Clean pan thor oughly soap water rinse lacquer thinner alcohol displace moisture will necessary time mount engine pan check tank placement cut-out needle Check Fig 3 detail Use clear silicone adhesive mount tank pan close engine carburetor possible Allow assembly dry thoroughly 24 hours Mount engine-pan assembly model check clearance ram tube distance ram tube fuselage side should approximately 550 inches Drill tap left side pan 4-40 bolt Check placement bolt Fig 3 placement critical bolt place bend 900 forward very carefully intended used cap overflow tube may necessary flow some solder over threads prevent tubing breaking Next drill front engine cowl left sidejust above spinner air-cooling vent required Mount tuned pipe model set 13 inches center glow plug edge pipe now ready test run engine model fill tank remove tubing overflow cap Hold nnse nf model straight up fill through ram tube Allow fuel flow out through overflow tube Slip overflow tubing back over screw cap side pan fuel bulb still ram tube hold model nose down give small squeeze force some fuel venturi prime engine Mount 7 x 10 Rev-Up prop engine Open needle valve 6 turns seat Using electric starter hold nose model down about 30 deg engine starts hold model level Engine should run rich Allow run few seconds tilt nose upward engine rpm should increase dramatically indicates engine has come 110 Model Aviation INDIAN CITY RADIO CONTROL CLUB PRESENTS GREATER MICHIGAN MODELERS SHOW & EXPO II PLANESBOATSCARS MANUFACTURERSS TATIC DISPLAYS 5 WAP SHOP October 34 5 1980 West Eight Mile Artillery Armory Oak Park NKlichigan MODEL CONTEST CATEGORIES AIRCRAFT BOATS CARS ROCKETS FREE FLIGHT SOUTWII EST Manufacturers Demonstrations Static Model Contest U-CONTROL TRAINS OVER 100 MANUFACTURERS NEW KITS NEW PRODUCTS COMMERCIAL EXHIBITS LIVE DEMONSTRATIONS SIX SPECIAL AWARDS AMA RAFFLE FREE PUBLIC PARKING PLASTICS DISCOUNT TICKETS 0 oct9 Sri j U 1 t hi E i LW o Sri Jiww W -0 000 ;o0 pipe does come pipe too rich Shut off engine putting finger over end pipe Dont worry wont burn finger Close needle valve refuel again repeat procedure until engine does come pipe nose up falls back slightly rich placed back level position may have repeat procedure number times until achieve desired setting take time desired needle setting now ready first test flight Fuel prime engine start engine holding nose down launch quickly possible allow engine go lean burn out prime model still dolly model must roll lift out dolly irst lap model stays dolly longer Make necessary adjustment correct problem very important get model out dolly fast possible glow plug will blow element model still dolly first flight needle setting flight will rich Use -turn needle valve increments between test flights until achieve right setting use -turn increments important single thing pilot will need master capability fine tune engine flight very simple model flying level approximately 3 4 feet altitude engine running slight rich maneuver model up about 15 feet will cause engine lean out After about 1 2 laps bring model back level flight engine tends go rich again level flight turn needle valve shut turn before next flight Repeat proce dure until engine holds constant setting level flight During 1978 season usingthis setup Dave Layman placed first US Championships 19347 mph first Dallas Southwestern 19650 second 1978 Nats 19450 Houston Speed Bash 19800 1979 Nats Dave placed tirst 9643 mph Now have good poop shoot 200 mph flight good feeling whether official flight just testing knowing can just getting together have questions write Dave Layman 5600 North Freeway * 102 Houston TX 77076 Good Luck Good Flying Gene Hempel 301 N Yale Dr Garland TX 75042 CL Navy Carrier/Perry Continued page 38 lbs loaded used 3000 horsepower spin its contra-rotating props XF8B-ls large flaps tail surfaces simple dihedral make well-suited event fuselage essentially flat-bottomed aft wing like Mauler Skyraider making easy building round cowling can formed lathe electric drill airplane has excellent potential Carrier event February column mentioned simple effective speed control system using Kavan pressure carburetor exhaust slide used over-center spring-loaded bellcrank see photo hold carb either open closed position cable attached screw pulled throttle open closed first time exhaust slide closed After first actuation OLD TIMER KITS Full Partial Kits P & W Semi-Kits--All Parts Machine Cut 1940 Ranger 46 span Plan mci $1300 1938 clipper MK 1 72 span Plan Extra $1070 1930 Trenton Terror 72 span Plan Extra $1200 PlaneClipper $450 Trenton Terror $350 Midway Model Co--Pull Kits-- 10 15 RIC 1038 Powerhouse Taibi Span $3596 1941 Air Trails Sportater 50 span $3596 Coming aoon Midway--OSO Replica kits former ly Micro ModelaiS designs-See Future Ads & R Models-Full Kits- 020 Repllco P/P 1940 So Long 32 span $1295 1941 Playboy Sr pan $1295 Tyro Models--Putt Kit-- 20 40 Engines 1941 Playboy Sr pan F/F R/C$4498 4Ks Models--Pull Kilo--Coo Rubber 1941 Climber 44 Span Rubber 41 Nets $1395 1940 Baby Buzzard 36 Span 020 Replica $1295 Micro Models-Pull Kit- 10 20 Engines 1938 Mercury Scientific 45 Span $2695 FREE FLIGHT KITS Gas Rubber CD2 velie Monocoupe Flyline 22 Rubber/CD2 $896 Flash x18 lasco 10 Span Rubber $229 Miss America II Scientific 20 Rubber$395 Satellite 450 4Rs Models 56 15 30 Gas $2460 Baby Roomer R/N Models 32 020 Gsa$716 FUELS ETC Products Aero Dyne fliesel Fuel Standard Blend $2Ot/pt $400/qI Diesel Fuel Break Blend $2OO/pt $450/qo Ignition Fuel High Octsne$420/qt $1209/gal Ignition Fuel Low Octane $375/qt $1840/gal IA High Nitro Fuel 65% Nitro $SOO/pt $1040/qI Nitrate Dope $26S/pt $420/qo $850/gal Nitrate Thinner$2t0/pt $300/qI $650/gal Spark Plug--NOK CM-6 Rethread 3/8-24 $250 ELECTRIC SYSTEMS AND KITS HyTork 102 Electric Propulsion System VL $2995 HyTork 48 Motor Gear Drive Prop $1295 Astro 020 R/C Sys Wired $3205[SPECIALaC$241l Astro 020 Prop Reduction Drive Unit $1346 Astro 05 System Wired $5995[SPECIAL55a5 $4495 Porterfield Collegiate 57$54951 SPECIALCOCa $4396 Shippingand HandlingSend $200 latest Up $1900 add $150catalogue copy $1902 $4000 add $200will sent free $4002 $6000 add $250upon request over$6000 add $300an order Calif Addressees add 6% by Horn State sales tax Sendhobby specialttesa MO Check viaa/MC ox 3008 8 COD tSeal Beach Ca 98780 Postage Fee 81 804-6233 June1980 111 * ** * Public Invited * * * * June 7th & 8th 1980 Womens Building Fair Park Dallas Texas
Edition: Model Aviation - 1980/06
Page Numbers: 35, 110, 111
C SPEED Gene Hempel THIS column continuation the April issue describing rework needed set up Supertigre X-29 suction fuel feed hope time read previously described engine rework finished venturi next part requires careful attention Disassemble needle valve assembly venturi Set needle valve assembly aside later use Machine insert type aluminum material prefer 2024-16 fit inside stock venturi bore Drill 5/16 30__________ 0 ring grooves use X-15 header 0-rings 750 id.485 id 070l045dpl -- Fhole through insert hole dimension has found best suited good suction X-29 engine Use small amount pressure press insert venturi opening force it could split venturi air intake side insert machine bevel edge will form general contour venturi makes smooth airflow Check Fig 1 details Next work needle valve assembly Dave Layman used Rossi 15 spray bar Supertigre needle entire assembly Mea sure outside dimensions spray bar dimension drill size hole through X-40 needle valve seat Insert spray bar drilled needle valve seat solder together Check very carefully no solder blocking fuel passage Check Fig 2 clarification assembly next opera tion will machine tuned pipe header Use dimensions drawing header Any type aluminum material can used header designed use Rossi 29 pipe Dave Layman does use OPS 29 pipe because has found 500 rpm slower Rossi pipe Test bench operation first thing mix liii X-40 needle valve seal drill hole lv size 01 needle valve hod Depicted new tuned-pipe header must fabricated scratch modified needle valve seat information article Figures 1 2 needle valve seat some fuel following formula 75% nitro 20% oil UCON 2270 Klotz 5% methanol use propylene oxide fuel testing flying would likely burn engine will obtain consistent engine runs Use 7-10 Rev-Up prop testing purposes Run approximately 6 oz fuel mix fast twocycle operation Use pen bladder surgical tubing tank bladder test bench operation lean out fuel mixture engine time Bench running seat piston sleeve properly Let engine cool down between run Utilize good tachometer trust engine should tach approximately 19000 rpm open exhaust next step connect pipe header engine bench testing set pipe length 14 inches measuring center glow plug end pipe pipe secured wont blow off now ready test-run engine Start sure keep running rich leaning out needle valve slowly monitor rpm until maximum attained let run longer 10 15 seconds peak rpm should tach 22000 22500 peak Any great doesnt reach rpm recheck modifi cation work try again testing finished sure oil engine some Marvel Mystery Oil rust bearing Place engine plastic Continued page 110 Figure3showsthepowerpod readyto mountin model Take careful note placement tank overflow tube its cap 4-40 bolt thru pan Cots tehes 1/0 brass I/A Make teak tram 008 skeet metal 3/4tap view IC 30 CCaide view can drill 1/0 boles alter Implate bent abapa 7/0rem tube 1/8 above avd I/O ted 1 lead lobe 3/03/8avertise lobetin tni TANKIrvalview LIL2IL1/8 CARS BORE 312 recommended B speed sucteon feed tank Supertigre X-29 has reworked descrebed en column Gene has interesting comments thts tank plus speed tips month June 1980 35 Figure 1 above Figure 2 right referenced column Right close up spraybar assembly soldered modified X-40 needle valve seat Above view needle valve assembly installed newly fabricated ven turi insert Details column 640 ed DRESS FOR THE OCCASION Get ready warm RC weather high-quality Tee Shirts BILL EVANS Silkscreened 100% cotten multi-colors theyre available sizes 5 M L XL Choose ELECK RIDER/Yellow ASTRON/Light Blue SIMITAR 540/Tan SEND $695 plus $100 shipping ch1 COREFIIM new instant dry adhesive PA wide 36 yard rolls $895 also offer following high-quality RC kits Simitar Sport Slope Squire Saracen Seville Winterhawk Hot Rock Simitar 540 Write complete brochure fine products x E ng ala strong process Eliminates gaps between control surfaces better performance 35/$189 BILL EVANS ~AIRCRAFT 20825 ROSCOE BLVD CANOGA PARK CA 91306/ TELEPHONE 213 7090894 able YAK series fighters Lavochkins 35 ft wingspan twin-row eighteen cylinder air-cooled engine 1850 hp Top speed 390 mph Armament consisted twin 20mm cannons six 55 lb rockets under wings Another unique feature automatic leading edge slats popped out critical airspeeds eliminate wingtip stalls Al talks about model LA-5 Lavochkin since its completion has won seven first place trophies both flying static competitions An original design adventure build document always draws comments now well known area own personal total airplane wingspan 33 inches weighs 1 lb 12 oz engine has no throttle bad mistake Split flaps actuated aileron bellcranks pushrods internally mounted horn Leading edge slats actuated another set bellcranks rods held open position compression springs until pulled Bomb release nothing simple lynch-pin actuated fifth line model flies great Being light overpowered goes sound scale speed 62 ft lines drag five control lines Model sheeted 1/32 sheet balsa painted mixture Aero Gloss flat dopes An idiosyncrasy real LA-S bounced badly during landings Believe scale aspect original has faithfully duplicated way big ambition now build model improving Lavochkin take Nats Id kind like compete against after its over could sit shade talk about airplanes tell other what did wrong blew last flight last time Nationals held Ohio Dayton 1976 turnout CL Sport Precision Scale nothing short spectacular year Nats scheduled Wilming ton OH excitement could just great Cleveland Dayton Cincinnati have always hotbeds ukie scale activity Chicago Indianapolis New York etc also well within driving range year will have two days flying should eliminate chance repeat last years windy blowout Lincoln live within range Wilmington have entertaining inner thoughts someday coming Natsdo now means bring along model enter Lets hear tired old excuse NATS airplane good enough Bring along give best shot may surprised well can know youll have good time Ed note sure pre register Mike Gretz Box 162 Montezuma IA 50171 CL Speed/Hempel Continued page 35 bag set aside completes engine modification instruc tions suction tank B speed has blessing compared pen bladders past using pen bladders pipe engines would lucky get run per engine comeback tank system has made B speed fun fly once Study drawing construction tank very carefully vary draw ing tank system works exceptionally well designed building tank sure radius bends tubing eliminate flat spots kinks means keep cotton pickin pliers off tubing Check drawing feed tube position Feed tube should soldered approximately 10 degree angle up horizontal Also sure feed tube points straight spray bar elbow may have resolder position elbow match up feed tube tank finished clean inside thoroughly lacquer thinner forget pressure check tank potential leaks next operation fit tank speed pan Use some type hand grinder mill remove unnecessary metal allow placement fuel tank Take special care fuel tank will mount level straight Check height tank does interfere models control system Clean pan thor oughly soap water rinse lacquer thinner alcohol displace moisture will necessary time mount engine pan check tank placement cut-out needle Check Fig 3 detail Use clear silicone adhesive mount tank pan close engine carburetor possible Allow assembly dry thoroughly 24 hours Mount engine-pan assembly model check clearance ram tube distance ram tube fuselage side should approximately 550 inches Drill tap left side pan 4-40 bolt Check placement bolt Fig 3 placement critical bolt place bend 900 forward very carefully intended used cap overflow tube may necessary flow some solder over threads prevent tubing breaking Next drill front engine cowl left sidejust above spinner air-cooling vent required Mount tuned pipe model set 13 inches center glow plug edge pipe now ready test run engine model fill tank remove tubing overflow cap Hold nnse nf model straight up fill through ram tube Allow fuel flow out through overflow tube Slip overflow tubing back over screw cap side pan fuel bulb still ram tube hold model nose down give small squeeze force some fuel venturi prime engine Mount 7 x 10 Rev-Up prop engine Open needle valve 6 turns seat Using electric starter hold nose model down about 30 deg engine starts hold model level Engine should run rich Allow run few seconds tilt nose upward engine rpm should increase dramatically indicates engine has come 110 Model Aviation INDIAN CITY RADIO CONTROL CLUB PRESENTS GREATER MICHIGAN MODELERS SHOW & EXPO II PLANESBOATSCARS MANUFACTURERSS TATIC DISPLAYS 5 WAP SHOP October 34 5 1980 West Eight Mile Artillery Armory Oak Park NKlichigan MODEL CONTEST CATEGORIES AIRCRAFT BOATS CARS ROCKETS FREE FLIGHT SOUTWII EST Manufacturers Demonstrations Static Model Contest U-CONTROL TRAINS OVER 100 MANUFACTURERS NEW KITS NEW PRODUCTS COMMERCIAL EXHIBITS LIVE DEMONSTRATIONS SIX SPECIAL AWARDS AMA RAFFLE FREE PUBLIC PARKING PLASTICS DISCOUNT TICKETS 0 oct9 Sri j U 1 t hi E i LW o Sri Jiww W -0 000 ;o0 pipe does come pipe too rich Shut off engine putting finger over end pipe Dont worry wont burn finger Close needle valve refuel again repeat procedure until engine does come pipe nose up falls back slightly rich placed back level position may have repeat procedure number times until achieve desired setting take time desired needle setting now ready first test flight Fuel prime engine start engine holding nose down launch quickly possible allow engine go lean burn out prime model still dolly model must roll lift out dolly irst lap model stays dolly longer Make necessary adjustment correct problem very important get model out dolly fast possible glow plug will blow element model still dolly first flight needle setting flight will rich Use -turn needle valve increments between test flights until achieve right setting use -turn increments important single thing pilot will need master capability fine tune engine flight very simple model flying level approximately 3 4 feet altitude engine running slight rich maneuver model up about 15 feet will cause engine lean out After about 1 2 laps bring model back level flight engine tends go rich again level flight turn needle valve shut turn before next flight Repeat proce dure until engine holds constant setting level flight During 1978 season usingthis setup Dave Layman placed first US Championships 19347 mph first Dallas Southwestern 19650 second 1978 Nats 19450 Houston Speed Bash 19800 1979 Nats Dave placed tirst 9643 mph Now have good poop shoot 200 mph flight good feeling whether official flight just testing knowing can just getting together have questions write Dave Layman 5600 North Freeway * 102 Houston TX 77076 Good Luck Good Flying Gene Hempel 301 N Yale Dr Garland TX 75042 CL Navy Carrier/Perry Continued page 38 lbs loaded used 3000 horsepower spin its contra-rotating props XF8B-ls large flaps tail surfaces simple dihedral make well-suited event fuselage essentially flat-bottomed aft wing like Mauler Skyraider making easy building round cowling can formed lathe electric drill airplane has excellent potential Carrier event February column mentioned simple effective speed control system using Kavan pressure carburetor exhaust slide used over-center spring-loaded bellcrank see photo hold carb either open closed position cable attached screw pulled throttle open closed first time exhaust slide closed After first actuation OLD TIMER KITS Full Partial Kits P & W Semi-Kits--All Parts Machine Cut 1940 Ranger 46 span Plan mci $1300 1938 clipper MK 1 72 span Plan Extra $1070 1930 Trenton Terror 72 span Plan Extra $1200 PlaneClipper $450 Trenton Terror $350 Midway Model Co--Pull Kits-- 10 15 RIC 1038 Powerhouse Taibi Span $3596 1941 Air Trails Sportater 50 span $3596 Coming aoon Midway--OSO Replica kits former ly Micro ModelaiS designs-See Future Ads & R Models-Full Kits- 020 Repllco P/P 1940 So Long 32 span $1295 1941 Playboy Sr pan $1295 Tyro Models--Putt Kit-- 20 40 Engines 1941 Playboy Sr pan F/F R/C$4498 4Ks Models--Pull Kilo--Coo Rubber 1941 Climber 44 Span Rubber 41 Nets $1395 1940 Baby Buzzard 36 Span 020 Replica $1295 Micro Models-Pull Kit- 10 20 Engines 1938 Mercury Scientific 45 Span $2695 FREE FLIGHT KITS Gas Rubber CD2 velie Monocoupe Flyline 22 Rubber/CD2 $896 Flash x18 lasco 10 Span Rubber $229 Miss America II Scientific 20 Rubber$395 Satellite 450 4Rs Models 56 15 30 Gas $2460 Baby Roomer R/N Models 32 020 Gsa$716 FUELS ETC Products Aero Dyne fliesel Fuel Standard Blend $2Ot/pt $400/qI Diesel Fuel Break Blend $2OO/pt $450/qo Ignition Fuel High Octsne$420/qt $1209/gal Ignition Fuel Low Octane $375/qt $1840/gal IA High Nitro Fuel 65% Nitro $SOO/pt $1040/qI Nitrate Dope $26S/pt $420/qo $850/gal Nitrate Thinner$2t0/pt $300/qI $650/gal Spark Plug--NOK CM-6 Rethread 3/8-24 $250 ELECTRIC SYSTEMS AND KITS HyTork 102 Electric Propulsion System VL $2995 HyTork 48 Motor Gear Drive Prop $1295 Astro 020 R/C Sys Wired $3205[SPECIALaC$241l Astro 020 Prop Reduction Drive Unit $1346 Astro 05 System Wired $5995[SPECIAL55a5 $4495 Porterfield Collegiate 57$54951 SPECIALCOCa $4396 Shippingand HandlingSend $200 latest Up $1900 add $150catalogue copy $1902 $4000 add $200will sent free $4002 $6000 add $250upon request over$6000 add $300an order Calif Addressees add 6% by Horn State sales tax Sendhobby specialttesa MO Check viaa/MC ox 3008 8 COD tSeal Beach Ca 98780 Postage Fee 81 804-6233 June1980 111 * ** * Public Invited * * * * June 7th & 8th 1980 Womens Building Fair Park Dallas Texas
Edition: Model Aviation - 1980/06
Page Numbers: 35, 110, 111
C SPEED Gene Hempel THIS column continuation the April issue describing rework needed set up Supertigre X-29 suction fuel feed hope time read previously described engine rework finished venturi next part requires careful attention Disassemble needle valve assembly venturi Set needle valve assembly aside later use Machine insert type aluminum material prefer 2024-16 fit inside stock venturi bore Drill 5/16 30__________ 0 ring grooves use X-15 header 0-rings 750 id.485 id 070l045dpl -- Fhole through insert hole dimension has found best suited good suction X-29 engine Use small amount pressure press insert venturi opening force it could split venturi air intake side insert machine bevel edge will form general contour venturi makes smooth airflow Check Fig 1 details Next work needle valve assembly Dave Layman used Rossi 15 spray bar Supertigre needle entire assembly Mea sure outside dimensions spray bar dimension drill size hole through X-40 needle valve seat Insert spray bar drilled needle valve seat solder together Check very carefully no solder blocking fuel passage Check Fig 2 clarification assembly next opera tion will machine tuned pipe header Use dimensions drawing header Any type aluminum material can used header designed use Rossi 29 pipe Dave Layman does use OPS 29 pipe because has found 500 rpm slower Rossi pipe Test bench operation first thing mix liii X-40 needle valve seal drill hole lv size 01 needle valve hod Depicted new tuned-pipe header must fabricated scratch modified needle valve seat information article Figures 1 2 needle valve seat some fuel following formula 75% nitro 20% oil UCON 2270 Klotz 5% methanol use propylene oxide fuel testing flying would likely burn engine will obtain consistent engine runs Use 7-10 Rev-Up prop testing purposes Run approximately 6 oz fuel mix fast twocycle operation Use pen bladder surgical tubing tank bladder test bench operation lean out fuel mixture engine time Bench running seat piston sleeve properly Let engine cool down between run Utilize good tachometer trust engine should tach approximately 19000 rpm open exhaust next step connect pipe header engine bench testing set pipe length 14 inches measuring center glow plug end pipe pipe secured wont blow off now ready test-run engine Start sure keep running rich leaning out needle valve slowly monitor rpm until maximum attained let run longer 10 15 seconds peak rpm should tach 22000 22500 peak Any great doesnt reach rpm recheck modifi cation work try again testing finished sure oil engine some Marvel Mystery Oil rust bearing Place engine plastic Continued page 110 Figure3showsthepowerpod readyto mountin model Take careful note placement tank overflow tube its cap 4-40 bolt thru pan Cots tehes 1/0 brass I/A Make teak tram 008 skeet metal 3/4tap view IC 30 CCaide view can drill 1/0 boles alter Implate bent abapa 7/0rem tube 1/8 above avd I/O ted 1 lead lobe 3/03/8avertise lobetin tni TANKIrvalview LIL2IL1/8 CARS BORE 312 recommended B speed sucteon feed tank Supertigre X-29 has reworked descrebed en column Gene has interesting comments thts tank plus speed tips month June 1980 35 Figure 1 above Figure 2 right referenced column Right close up spraybar assembly soldered modified X-40 needle valve seat Above view needle valve assembly installed newly fabricated ven turi insert Details column 640 ed DRESS FOR THE OCCASION Get ready warm RC weather high-quality Tee Shirts BILL EVANS Silkscreened 100% cotten multi-colors theyre available sizes 5 M L XL Choose ELECK RIDER/Yellow ASTRON/Light Blue SIMITAR 540/Tan SEND $695 plus $100 shipping ch1 COREFIIM new instant dry adhesive PA wide 36 yard rolls $895 also offer following high-quality RC kits Simitar Sport Slope Squire Saracen Seville Winterhawk Hot Rock Simitar 540 Write complete brochure fine products x E ng ala strong process Eliminates gaps between control surfaces better performance 35/$189 BILL EVANS ~AIRCRAFT 20825 ROSCOE BLVD CANOGA PARK CA 91306/ TELEPHONE 213 7090894 able YAK series fighters Lavochkins 35 ft wingspan twin-row eighteen cylinder air-cooled engine 1850 hp Top speed 390 mph Armament consisted twin 20mm cannons six 55 lb rockets under wings Another unique feature automatic leading edge slats popped out critical airspeeds eliminate wingtip stalls Al talks about model LA-5 Lavochkin since its completion has won seven first place trophies both flying static competitions An original design adventure build document always draws comments now well known area own personal total airplane wingspan 33 inches weighs 1 lb 12 oz engine has no throttle bad mistake Split flaps actuated aileron bellcranks pushrods internally mounted horn Leading edge slats actuated another set bellcranks rods held open position compression springs until pulled Bomb release nothing simple lynch-pin actuated fifth line model flies great Being light overpowered goes sound scale speed 62 ft lines drag five control lines Model sheeted 1/32 sheet balsa painted mixture Aero Gloss flat dopes An idiosyncrasy real LA-S bounced badly during landings Believe scale aspect original has faithfully duplicated way big ambition now build model improving Lavochkin take Nats Id kind like compete against after its over could sit shade talk about airplanes tell other what did wrong blew last flight last time Nationals held Ohio Dayton 1976 turnout CL Sport Precision Scale nothing short spectacular year Nats scheduled Wilming ton OH excitement could just great Cleveland Dayton Cincinnati have always hotbeds ukie scale activity Chicago Indianapolis New York etc also well within driving range year will have two days flying should eliminate chance repeat last years windy blowout Lincoln live within range Wilmington have entertaining inner thoughts someday coming Natsdo now means bring along model enter Lets hear tired old excuse NATS airplane good enough Bring along give best shot may surprised well can know youll have good time Ed note sure pre register Mike Gretz Box 162 Montezuma IA 50171 CL Speed/Hempel Continued page 35 bag set aside completes engine modification instruc tions suction tank B speed has blessing compared pen bladders past using pen bladders pipe engines would lucky get run per engine comeback tank system has made B speed fun fly once Study drawing construction tank very carefully vary draw ing tank system works exceptionally well designed building tank sure radius bends tubing eliminate flat spots kinks means keep cotton pickin pliers off tubing Check drawing feed tube position Feed tube should soldered approximately 10 degree angle up horizontal Also sure feed tube points straight spray bar elbow may have resolder position elbow match up feed tube tank finished clean inside thoroughly lacquer thinner forget pressure check tank potential leaks next operation fit tank speed pan Use some type hand grinder mill remove unnecessary metal allow placement fuel tank Take special care fuel tank will mount level straight Check height tank does interfere models control system Clean pan thor oughly soap water rinse lacquer thinner alcohol displace moisture will necessary time mount engine pan check tank placement cut-out needle Check Fig 3 detail Use clear silicone adhesive mount tank pan close engine carburetor possible Allow assembly dry thoroughly 24 hours Mount engine-pan assembly model check clearance ram tube distance ram tube fuselage side should approximately 550 inches Drill tap left side pan 4-40 bolt Check placement bolt Fig 3 placement critical bolt place bend 900 forward very carefully intended used cap overflow tube may necessary flow some solder over threads prevent tubing breaking Next drill front engine cowl left sidejust above spinner air-cooling vent required Mount tuned pipe model set 13 inches center glow plug edge pipe now ready test run engine model fill tank remove tubing overflow cap Hold nnse nf model straight up fill through ram tube Allow fuel flow out through overflow tube Slip overflow tubing back over screw cap side pan fuel bulb still ram tube hold model nose down give small squeeze force some fuel venturi prime engine Mount 7 x 10 Rev-Up prop engine Open needle valve 6 turns seat Using electric starter hold nose model down about 30 deg engine starts hold model level Engine should run rich Allow run few seconds tilt nose upward engine rpm should increase dramatically indicates engine has come 110 Model Aviation INDIAN CITY RADIO CONTROL CLUB PRESENTS GREATER MICHIGAN MODELERS SHOW & EXPO II PLANESBOATSCARS MANUFACTURERSS TATIC DISPLAYS 5 WAP SHOP October 34 5 1980 West Eight Mile Artillery Armory Oak Park NKlichigan MODEL CONTEST CATEGORIES AIRCRAFT BOATS CARS ROCKETS FREE FLIGHT SOUTWII EST Manufacturers Demonstrations Static Model Contest U-CONTROL TRAINS OVER 100 MANUFACTURERS NEW KITS NEW PRODUCTS COMMERCIAL EXHIBITS LIVE DEMONSTRATIONS SIX SPECIAL AWARDS AMA RAFFLE FREE PUBLIC PARKING PLASTICS DISCOUNT TICKETS 0 oct9 Sri j U 1 t hi E i LW o Sri Jiww W -0 000 ;o0 pipe does come pipe too rich Shut off engine putting finger over end pipe Dont worry wont burn finger Close needle valve refuel again repeat procedure until engine does come pipe nose up falls back slightly rich placed back level position may have repeat procedure number times until achieve desired setting take time desired needle setting now ready first test flight Fuel prime engine start engine holding nose down launch quickly possible allow engine go lean burn out prime model still dolly model must roll lift out dolly irst lap model stays dolly longer Make necessary adjustment correct problem very important get model out dolly fast possible glow plug will blow element model still dolly first flight needle setting flight will rich Use -turn needle valve increments between test flights until achieve right setting use -turn increments important single thing pilot will need master capability fine tune engine flight very simple model flying level approximately 3 4 feet altitude engine running slight rich maneuver model up about 15 feet will cause engine lean out After about 1 2 laps bring model back level flight engine tends go rich again level flight turn needle valve shut turn before next flight Repeat proce dure until engine holds constant setting level flight During 1978 season usingthis setup Dave Layman placed first US Championships 19347 mph first Dallas Southwestern 19650 second 1978 Nats 19450 Houston Speed Bash 19800 1979 Nats Dave placed tirst 9643 mph Now have good poop shoot 200 mph flight good feeling whether official flight just testing knowing can just getting together have questions write Dave Layman 5600 North Freeway * 102 Houston TX 77076 Good Luck Good Flying Gene Hempel 301 N Yale Dr Garland TX 75042 CL Navy Carrier/Perry Continued page 38 lbs loaded used 3000 horsepower spin its contra-rotating props XF8B-ls large flaps tail surfaces simple dihedral make well-suited event fuselage essentially flat-bottomed aft wing like Mauler Skyraider making easy building round cowling can formed lathe electric drill airplane has excellent potential Carrier event February column mentioned simple effective speed control system using Kavan pressure carburetor exhaust slide used over-center spring-loaded bellcrank see photo hold carb either open closed position cable attached screw pulled throttle open closed first time exhaust slide closed After first actuation OLD TIMER KITS Full Partial Kits P & W Semi-Kits--All Parts Machine Cut 1940 Ranger 46 span Plan mci $1300 1938 clipper MK 1 72 span Plan Extra $1070 1930 Trenton Terror 72 span Plan Extra $1200 PlaneClipper $450 Trenton Terror $350 Midway Model Co--Pull Kits-- 10 15 RIC 1038 Powerhouse Taibi Span $3596 1941 Air Trails Sportater 50 span $3596 Coming aoon Midway--OSO Replica kits former ly Micro ModelaiS designs-See Future Ads & R Models-Full Kits- 020 Repllco P/P 1940 So Long 32 span $1295 1941 Playboy Sr pan $1295 Tyro Models--Putt Kit-- 20 40 Engines 1941 Playboy Sr pan F/F R/C$4498 4Ks Models--Pull Kilo--Coo Rubber 1941 Climber 44 Span Rubber 41 Nets $1395 1940 Baby Buzzard 36 Span 020 Replica $1295 Micro Models-Pull Kit- 10 20 Engines 1938 Mercury Scientific 45 Span $2695 FREE FLIGHT KITS Gas Rubber CD2 velie Monocoupe Flyline 22 Rubber/CD2 $896 Flash x18 lasco 10 Span Rubber $229 Miss America II Scientific 20 Rubber$395 Satellite 450 4Rs Models 56 15 30 Gas $2460 Baby Roomer R/N Models 32 020 Gsa$716 FUELS ETC Products Aero Dyne fliesel Fuel Standard Blend $2Ot/pt $400/qI Diesel Fuel Break Blend $2OO/pt $450/qo Ignition Fuel High Octsne$420/qt $1209/gal Ignition Fuel Low Octane $375/qt $1840/gal IA High Nitro Fuel 65% Nitro $SOO/pt $1040/qI Nitrate Dope $26S/pt $420/qo $850/gal Nitrate Thinner$2t0/pt $300/qI $650/gal Spark Plug--NOK CM-6 Rethread 3/8-24 $250 ELECTRIC SYSTEMS AND KITS HyTork 102 Electric Propulsion System VL $2995 HyTork 48 Motor Gear Drive Prop $1295 Astro 020 R/C Sys Wired $3205[SPECIALaC$241l Astro 020 Prop Reduction Drive Unit $1346 Astro 05 System Wired $5995[SPECIAL55a5 $4495 Porterfield Collegiate 57$54951 SPECIALCOCa $4396 Shippingand HandlingSend $200 latest Up $1900 add $150catalogue copy $1902 $4000 add $200will sent free $4002 $6000 add $250upon request over$6000 add $300an order Calif Addressees add 6% by Horn State sales tax Sendhobby specialttesa MO Check viaa/MC ox 3008 8 COD tSeal Beach Ca 98780 Postage Fee 81 804-6233 June1980 111 * ** * Public Invited * * * * June 7th & 8th 1980 Womens Building Fair Park Dallas Texas