CONTROL LINE SPEED PAY ATTENTION Whether fly Speed RC free flight Stunt Scale listen what Im saying fly enginepowered models concrete tarmac other hard-surfaced field should never leave airplanes sitting runway between flights Put box stand table anything will get off ground protect engine dust trash grit wind picks up bounces along surface slightest breeze will stir up dust bounces alongmost dense near ground course also several inches above surface grit will drift hole airplane engine Itll damage few seconds running engine occurs hours normal clean operation fly off dirty surface start engines some elevated platform place ground takeoff should minimize ingestion dust stirred up prop Most Speed contestants have blanket some kind pad lay concrete under models helps doesnt keep drifting dust out engines trick have used times keep models large plastic bags tool box something keep opening shut between flights little prevention saves lot wear engines finally finished two new 21 Sport Speed airplanes havent flown yet powered Rossi TOP engine other Chinese-built CS engine am trying some radical modifications sleeve piston TOP changes help Ill let know dont youll never hear about CS engine cute little thing Its much smaller 44 grams lighter TOP doesnt have tricks slots turbos etc simple ABC Schnuerle-ported engine similar built other manufacturers has few minor variations chrome-plated sleeve seems made some type bronze rather yellow brass tapered bore high-silicon piston nice loose bottom stroke tight top Piston fit seems excellent flight tests will tell sure correct bore 654 inches stroke 627 inches giving bore-to-stroke ratio 1 04just little over square crankshaft supported two ball bearings like Speed engines intake normal open 380 ABDC close 700 ATDC sleeve porting little unconventional two boost ports open before Schnuerle bypass ports boosts being open 1500 crank rotation bypasses 1400 large exhaust port open 1740 head button- insert-type flat squish band 420-inch diameter hemispherical chamber held six 25 mm screws takes short-reach plug backplate bolted crankcase like engines threaded screws case against 0-ring seal does bottom against case crankcase volume backplate position can vary depending tightly screw dont know designed way just error tops bypass boost port openings crankcase match tops ports sleeve sleeve openings about 100 inches above tops bypasses fuel-air transfer can occur past thickness sleeve wail until piston gets down far below ports dont know detriment Im going test fly decide should grind out crankcase Ill have carefulits easy go too far grind through wall obnoxious point about CS engine came spinner much too large match speed pan available meant make new prop driver plate match correct spinner also make minipipe Little things like keep modelers buying certain engines since dont have capability machine such parts manufacturers wonder engines dont sell hope have test results eventually some future column Next will NATS should interesting am hearing rumors about new engines both glow jet Ill reporting too Some modelers have asked measure timing engine photo shows type degree wheel use just circular protractor purchased office supply store homemade central hub fits engine shaft hub doesnt have anything fancy wood plastic will work Continued page 104 94 Model Aviation new 21 Sport Speed models built author nearest powered Rossi TOP engine other CS Engines mounted Darp magnesium intake timing cylinder port timing pans needle valves mounted measured mounting circular behind engines easy safe access protractor crankshaft DC Flight Training Beginner advanCed tailored individuai long-time modeler full size airplane flight instruC tor will make progress fun easy during week stay beautiful far westem North Carolina Write Call information RC Flight Training S~LRIER 704 3896S CL SpeedlLee Continued page 94 may need different inserts different engines piece small music wire bolted motor mount lug sticks out near rim protractor tricky part setting zero point best way to have something will positively stop piston identical point time rotate crankshaft past bottom dead center BDC can insert something like Popsicle stick exhaust can use depth micrometer shown want protractor read zero BDC rotate crank direction stop lock protractor prop nut reads same number degrees direction Remove stop look cylinder crank rotate read scale port measuring opens closes Chris Sackett others mostly northwestern part country have started 21 Proto Speed flying old 29 Proto class popular Speed events back 60s trying revive similar class features scalelike model sounds like fun Ive always liked Proto soT guess Ill build next year Ill try get some pictures give set tentative rules future column 21 engines run well would really nice event Airplanes must painted have canopies pilot wheels would mean would rarely break prop new/old fliers showing up Speed contestscome join fun urationlMurphy Continued page 88 model its performance certainly up-todate Its called Majestyk Charles Bronson Special remember movie Mr Majestyk kit typical Campbell quality precut ribs wingtips rolled plans hard ware package Japanese tissue plastic competition prop great balsa Oh yeah ample /s flat tan rubber also included price $2198 available dealers carry Campbell product line add $4 can order direct 401 Execu tive Center Drive H- 108 West Palm Beach FL 33401 24-page model-supply catalog-of-themonth comes Hobby Supply South Acworth GA Its first catalog have serving Atlanta area modelers since 1986 cater three modeling disci plines carry products British firms well domestic manufacturers cat alog $2 will automatically receive next issue order anything Send Hobby Supply South 5060 Glade Rd Acworth GA 30101 Tel 404 974-0843 Terry Rimert up air once again reprint initial Nostalgia plan book volume what now threevolume work second edition contains same plans first however enhanced index plans complete set current 1991 NFFS Nos talgia Gas rules design engine eligibility lists included Terry says price must naturally increase over initial publication doesnt say much However books once again sold through Lee Campbell hit up Lee correct sum Terrys quest Taibi Racer plans has fruitful fellow Phoenix recently yielding plans Bob Larsh chairman NFFS NosGas Review Board Look up Terry Nats year per sonally thank him Nostalgia plan books nothing like plans documenta tion keep model activity alive well pIU beats em GOYCIA m ARROW Competition Specialno hardware Four4 Kits- $8995 Deluxe Kit $3495 Send $1 complete catalog Fly Best Fly CoreHouse ODYCIA SUPER SLOW 11I E $5 p Wh COB ElI 0 USE au&was 6BWALTONRSIB 717 566 3810 104 Model Aviation PTOR THROW AWAY YOUR COLLETS CHuCK & WRENCH USE oun ADAPTOR & KEYLESS CHUCK lB TO 5t32 CAP ON ALL OREME POWER TOOLS INCLUDING 750 MINIMITE & EXIBLE SHAFT RUNS 100% TRUE & CONCENTRIC AT FULL RRM NO 501 ADAPTOR ESS CHUCK SI 895 1850 395 DO NOT NEED ADAPTOR TO USE KEYLESS CHUCK STEEL SAW AND ARBOR HARDENED GROUND & POLISHED STEEL USED FOR CtFrrING PIAS11C WOOD soPr METALS LEXAN PLEXIGLASS & ETC VAILABLE IN 006008 010 012 014 016 08 NO 020023025 028032 THICKNESS 1DSIDE DLAMETER 0 $675 EA NO502 R$600 503- PX014X 1/4SAW$600 OUR SAWS ONLY WORK WItH OUR ARBOR ABRASWE CUT-OFF BLADES FIBERGLASS REINFORCED-RESISTS BREAKAGECUT STEEL BRASS COPPER ALUMINUM AND OTHER METALS ALL BLADES 1/32 THICK WITH 1/4 HOLE SIZE NO PRICE SIZE NO PRICE 1 1/2 AB2100 3ABS150 2A63100 ARBOR 503600 SAWS AND CUTOFF BLADES ONLY WORK WITH OUR ARBOR NO NEED FOR FLINT OR MATCHES MICRO AIY JUST PRESS THE PIEZO SELFSTARTING SELF SJl BUTTON FOR MICRO SIZE ADJUSTABLE FLAME THAT BURNS AT 2370 FOR UP Tt STARTING FII 3 HOURS OPERATES ON STANDARD TORCH REFILLABLE TANK FITS COMFORTABLY IN THE PALM OT YOUR HANO ANO IS LIGHTER BUTANE AND IS MT770-MADE OF HIGH IMPACT RUBBER WHICH Blow TorthALLOWS FOR SAFE NONSLIP GRIP IWIlA en 0 Baton53500SUPPLIED WITH CAN OF BUTANE 0RCAT0038 WHEN ORBERING 600 5300 EASTERN TOOL&SUPPLYCO DROE00212155A00R 149GRANDST-NYC. NY 10013 OFFEE 2122284140 CATALOG FREE WITH ORDERPAL210425100 e ADVANCED AERO PRODUCTS YS & OS SURPASS 120 rfvEL EXHAUST SYSTEMS FOA F&TTERN AIRCRAFT AND ULTiMATE lIFE SIUCONE COUPLERS AND TAIL PIPES ALSO AVAILASLE [ CML DR BRIIE Eta WDA46T010 DEALAB HDORES RT 1 BOX 365-C ANNA TX 76409 I4 924-3940 SAMS MODELS England NEW Scale Free Flight Kits wE0T Hawker Sea Fwy P011 HAWKER SEA FURYe241/2$1995 also available DH Chpmunk2$149 Ha wker Hart 2 add $7 arna// SAMS Chapel Sandon Buntingford Herts SG9 OQJ England GASPARIN C02 Motors now SAMS Note US Checks & Stamps valid UK VISA & Mastercard accepted S-bills
Edition: Model Aviation - 1993/11
Page Numbers: 94, 104
CONTROL LINE SPEED PAY ATTENTION Whether fly Speed RC free flight Stunt Scale listen what Im saying fly enginepowered models concrete tarmac other hard-surfaced field should never leave airplanes sitting runway between flights Put box stand table anything will get off ground protect engine dust trash grit wind picks up bounces along surface slightest breeze will stir up dust bounces alongmost dense near ground course also several inches above surface grit will drift hole airplane engine Itll damage few seconds running engine occurs hours normal clean operation fly off dirty surface start engines some elevated platform place ground takeoff should minimize ingestion dust stirred up prop Most Speed contestants have blanket some kind pad lay concrete under models helps doesnt keep drifting dust out engines trick have used times keep models large plastic bags tool box something keep opening shut between flights little prevention saves lot wear engines finally finished two new 21 Sport Speed airplanes havent flown yet powered Rossi TOP engine other Chinese-built CS engine am trying some radical modifications sleeve piston TOP changes help Ill let know dont youll never hear about CS engine cute little thing Its much smaller 44 grams lighter TOP doesnt have tricks slots turbos etc simple ABC Schnuerle-ported engine similar built other manufacturers has few minor variations chrome-plated sleeve seems made some type bronze rather yellow brass tapered bore high-silicon piston nice loose bottom stroke tight top Piston fit seems excellent flight tests will tell sure correct bore 654 inches stroke 627 inches giving bore-to-stroke ratio 1 04just little over square crankshaft supported two ball bearings like Speed engines intake normal open 380 ABDC close 700 ATDC sleeve porting little unconventional two boost ports open before Schnuerle bypass ports boosts being open 1500 crank rotation bypasses 1400 large exhaust port open 1740 head button- insert-type flat squish band 420-inch diameter hemispherical chamber held six 25 mm screws takes short-reach plug backplate bolted crankcase like engines threaded screws case against 0-ring seal does bottom against case crankcase volume backplate position can vary depending tightly screw dont know designed way just error tops bypass boost port openings crankcase match tops ports sleeve sleeve openings about 100 inches above tops bypasses fuel-air transfer can occur past thickness sleeve wail until piston gets down far below ports dont know detriment Im going test fly decide should grind out crankcase Ill have carefulits easy go too far grind through wall obnoxious point about CS engine came spinner much too large match speed pan available meant make new prop driver plate match correct spinner also make minipipe Little things like keep modelers buying certain engines since dont have capability machine such parts manufacturers wonder engines dont sell hope have test results eventually some future column Next will NATS should interesting am hearing rumors about new engines both glow jet Ill reporting too Some modelers have asked measure timing engine photo shows type degree wheel use just circular protractor purchased office supply store homemade central hub fits engine shaft hub doesnt have anything fancy wood plastic will work Continued page 104 94 Model Aviation new 21 Sport Speed models built author nearest powered Rossi TOP engine other CS Engines mounted Darp magnesium intake timing cylinder port timing pans needle valves mounted measured mounting circular behind engines easy safe access protractor crankshaft DC Flight Training Beginner advanCed tailored individuai long-time modeler full size airplane flight instruC tor will make progress fun easy during week stay beautiful far westem North Carolina Write Call information RC Flight Training S~LRIER 704 3896S CL SpeedlLee Continued page 94 may need different inserts different engines piece small music wire bolted motor mount lug sticks out near rim protractor tricky part setting zero point best way to have something will positively stop piston identical point time rotate crankshaft past bottom dead center BDC can insert something like Popsicle stick exhaust can use depth micrometer shown want protractor read zero BDC rotate crank direction stop lock protractor prop nut reads same number degrees direction Remove stop look cylinder crank rotate read scale port measuring opens closes Chris Sackett others mostly northwestern part country have started 21 Proto Speed flying old 29 Proto class popular Speed events back 60s trying revive similar class features scalelike model sounds like fun Ive always liked Proto soT guess Ill build next year Ill try get some pictures give set tentative rules future column 21 engines run well would really nice event Airplanes must painted have canopies pilot wheels would mean would rarely break prop new/old fliers showing up Speed contestscome join fun urationlMurphy Continued page 88 model its performance certainly up-todate Its called Majestyk Charles Bronson Special remember movie Mr Majestyk kit typical Campbell quality precut ribs wingtips rolled plans hard ware package Japanese tissue plastic competition prop great balsa Oh yeah ample /s flat tan rubber also included price $2198 available dealers carry Campbell product line add $4 can order direct 401 Execu tive Center Drive H- 108 West Palm Beach FL 33401 24-page model-supply catalog-of-themonth comes Hobby Supply South Acworth GA Its first catalog have serving Atlanta area modelers since 1986 cater three modeling disci plines carry products British firms well domestic manufacturers cat alog $2 will automatically receive next issue order anything Send Hobby Supply South 5060 Glade Rd Acworth GA 30101 Tel 404 974-0843 Terry Rimert up air once again reprint initial Nostalgia plan book volume what now threevolume work second edition contains same plans first however enhanced index plans complete set current 1991 NFFS Nos talgia Gas rules design engine eligibility lists included Terry says price must naturally increase over initial publication doesnt say much However books once again sold through Lee Campbell hit up Lee correct sum Terrys quest Taibi Racer plans has fruitful fellow Phoenix recently yielding plans Bob Larsh chairman NFFS NosGas Review Board Look up Terry Nats year per sonally thank him Nostalgia plan books nothing like plans documenta tion keep model activity alive well pIU beats em GOYCIA m ARROW Competition Specialno hardware Four4 Kits- $8995 Deluxe Kit $3495 Send $1 complete catalog Fly Best Fly CoreHouse ODYCIA SUPER SLOW 11I E $5 p Wh COB ElI 0 USE au&was 6BWALTONRSIB 717 566 3810 104 Model Aviation PTOR THROW AWAY YOUR COLLETS CHuCK & WRENCH USE oun ADAPTOR & KEYLESS CHUCK lB TO 5t32 CAP ON ALL OREME POWER TOOLS INCLUDING 750 MINIMITE & EXIBLE SHAFT RUNS 100% TRUE & CONCENTRIC AT FULL RRM NO 501 ADAPTOR ESS CHUCK SI 895 1850 395 DO NOT NEED ADAPTOR TO USE KEYLESS CHUCK STEEL SAW AND ARBOR HARDENED GROUND & POLISHED STEEL USED FOR CtFrrING PIAS11C WOOD soPr METALS LEXAN PLEXIGLASS & ETC VAILABLE IN 006008 010 012 014 016 08 NO 020023025 028032 THICKNESS 1DSIDE DLAMETER 0 $675 EA NO502 R$600 503- PX014X 1/4SAW$600 OUR SAWS ONLY WORK WItH OUR ARBOR ABRASWE CUT-OFF BLADES FIBERGLASS REINFORCED-RESISTS BREAKAGECUT STEEL BRASS COPPER ALUMINUM AND OTHER METALS ALL BLADES 1/32 THICK WITH 1/4 HOLE SIZE NO PRICE SIZE NO PRICE 1 1/2 AB2100 3ABS150 2A63100 ARBOR 503600 SAWS AND CUTOFF BLADES ONLY WORK WITH OUR ARBOR NO NEED FOR FLINT OR MATCHES MICRO AIY JUST PRESS THE PIEZO SELFSTARTING SELF SJl BUTTON FOR MICRO SIZE ADJUSTABLE FLAME THAT BURNS AT 2370 FOR UP Tt STARTING FII 3 HOURS OPERATES ON STANDARD TORCH REFILLABLE TANK FITS COMFORTABLY IN THE PALM OT YOUR HANO ANO IS LIGHTER BUTANE AND IS MT770-MADE OF HIGH IMPACT RUBBER WHICH Blow TorthALLOWS FOR SAFE NONSLIP GRIP IWIlA en 0 Baton53500SUPPLIED WITH CAN OF BUTANE 0RCAT0038 WHEN ORBERING 600 5300 EASTERN TOOL&SUPPLYCO DROE00212155A00R 149GRANDST-NYC. NY 10013 OFFEE 2122284140 CATALOG FREE WITH ORDERPAL210425100 e ADVANCED AERO PRODUCTS YS & OS SURPASS 120 rfvEL EXHAUST SYSTEMS FOA F&TTERN AIRCRAFT AND ULTiMATE lIFE SIUCONE COUPLERS AND TAIL PIPES ALSO AVAILASLE [ CML DR BRIIE Eta WDA46T010 DEALAB HDORES RT 1 BOX 365-C ANNA TX 76409 I4 924-3940 SAMS MODELS England NEW Scale Free Flight Kits wE0T Hawker Sea Fwy P011 HAWKER SEA FURYe241/2$1995 also available DH Chpmunk2$149 Ha wker Hart 2 add $7 arna// SAMS Chapel Sandon Buntingford Herts SG9 OQJ England GASPARIN C02 Motors now SAMS Note US Checks & Stamps valid UK VISA & Mastercard accepted S-bills