c~ncixi FrJu Scale 0 MikeGretz NATIONAL SCALE SOCIETY official temporary name new ganization scale modelers weve reading about several months Now can just read about can join sending $500 Sec/Treas Noel Allison 4174 West 120th St Apt C Hawthorne CA 90250 dues provide membership 1978 subscription monthly news letter According Bob Underwood President NSS once mem bership roll permanent possibly suitable name logo can decided upon membership Im enthused about potential scale society benefit FF CL RC scale enthusiasts whether sport competition minded active news letter techniques can provide direction subject research respond questions about methods talk about new old products just spread good word about exciting event modeling Society can encourage participation scale events kinds contests fly-ins static displays guidelines calen dar events national coverage pub lished newsletter Ideas such new categories competition different skill classification guidelines and/or certi fication contest judgesan attempt equitable competitioncould hashed out common meeting ground newsletter Basically think popularity past couple years forming national special interest groups like PAMPA MACA IMAC etc simply attempt better communications between model ers common interest embryo scale organization can us come important influence before AMA Scale Board Nats Planners FAI Team Programs etc achieves its gimis demonstrates its viability short much gained nothing lose trying make ganization go Society can serve categories scale Lend support now give Society foundation grow chance us some good Continued page 98 42 Model Aviation Huge DC-i built Dan Smyth powered four Webra 20 engines Photograph Jerry Farr Seeing believing Flat tires wheel left look realistic simple technique see text takes curse off shiny unrealistic tires some judges note Photograph Mike Gretz Left Nats champ Ray Smith 1/8-scale Messerschmitt will represent US next Scale Championships three-man team Flying weathered 109 Ray has won eight firsts contests entered Right Sliding side windows opening canopy operating controls U R T S S UEMhI V PLANS aLflEI U sY RALPH BECK NOW AVAILABLE FROM 170d0 ENT CORP P0 BOX 9641SAN DIEGO CALIFORNIA 92109 SEND 1O FOR COMPLETE CATALOG OF AIRCRAFT HARDWARE & ACCESSORIESPLUS DESCRIPTIVE JENNYBROCHURE prevent condition Seems like lot work pays off ABC Its really hard tell whats hap pening chrome bore visual signs lot harder see look two things First shiny spots actually just little shinier rest chrome surface hold sleeve up strong light attempt cast shadow top piston comes top stroke shadow means oversize piston has pushed chrome deformed brass substrate beneath either condition lapping indicated Ringed Piston want sleeve shiny top bottom ring travel around surface sleeve either out round warped bulged spots Look rings carefully perfectly wear pattern rings case ringed pistons round true sleeves round rings necessary maximum power must try achieve condi tion difference can easily amount nearly 1000 rpm flying prop Now some basic procedures have followed lets continue running engine Assume engine running fine problems have identified solved Run engine short 2-minute runs until will hold really full power setting dura tion run switch prop 1 pitch lower ss diam eter repeat runs rich settings full power Examine engine continu ously during run signs over heating inability hold rpm fixed setting etc purpose smaller pitch diameter props prepare engine run satisfactorily rpms will achieve air some prop will run 3000 rpm faster intend fly want finish initial break-in Assuming have used same basic fuel started now time switch potent fuels intend use start 5% nitro fuel except FAT fuel engines switch fuel intended use flying RC 12% nitro good year-around brew CL 12% stunt sport 40% second step running high-nitro engines fol lowed 65% 78% depending high nitro application Again start flight prop short runs until engine stabi lizes put lower load props until engine runs easily 3000 rpm over flight prop rpm successive fuels until reach final brew Got notebook Conclusion will achieve two really important objectives following pro cedures outlined First will acquire ability understand some intrica cies engine operate will assured have top mechani cal condition properly prepared fly Second will learn operate engine what sounds like re acts what needle valve response likes started choke prime etc means go out fly will know engine prob lems come up engine initially installed plane boat car will know source problem engine something else Bench running can developed pro vide serious modeler far formation Two examples 1 Running several engines identical make comparison performance swapping parts between engines get best engine J E Albritton Herb Stock ton ran seven Supertigre 29s session recorded 900 rpm difference between best worst engine methodically swapped parts among engines obtain best crankcase bear ings crank rod piston-sleeve set head almost went nuts taking things apart keeping track swaps Net result 700 rpm over best seven engines Analysis what best-best engine provided basis what developing still power provided recorded what did what notebook kept track important observations 2 Running engines dynamometer making power fuel consumption tests sophisticated work type sometimes produces results swap-and-try method just mentioned Ill cover sophisticated testing development procedures later articles next article will power trains engine mount tank prop accessories put model make go Don Jehlik 438 Schweer Dr Star Route 1 Hawthorne NV 89415 CL Scale/Gretz continued page 42 Super Team Ray Smith Los Alamitos California highest ranking member 1978 FAT CL Scale Team having won first both Open AMA Scale team selection program 77 Nats Riverside Ray plans add detail already outstanding Nats winning Messerschmitt BF-109E use World Championships World Cham pionships tenatively scheduled early August England Dimensionally Rays scratch-built Messerschmitt 1 1 ft scale 48 11/16 wing span Its powered OS Max 60 Top Flite 12-6 prop weight ready fly full fuel bomb load 7 pounds Rays ingenious scale building reflects technical background has building flying model airplanes 40 48 years works Laboratory Machine Shop Supervisor Aerospace Corp said main interests model ing currently understandably CL RC scale although also competes CL Combat Stunt Rat Race Car rier beauty AMAs team programs over years has team members selected purely con test performance some other countries know much can afford spend trip oversees Ray Smith other members 78 CL Scale Team first time FAT competitors earned positions open competition can help maintain ideal selec tion process buying FAT stamp $1 send 78 AMA mem bership fee money provides vital support FAT teams future perhaps direct approach Scale Team funding can pro jects National Scale Society Patch sales Nats WC movie slide pro gram rentals could considered among other things Flat Tires Did notice coverage photos airplanes entered Nats World Championships have flat meaning non-glossy tires Its true Now dont scoff mumble something about crazy museum scale builders Scale judging especially Sport Scale game realistic im pressions Glossy non-glossy tires may things first look scrutinizing scale model small secrets can add up difference between model airplane realistic illusion full-size air plane should consider trying next project may worth extra point two often differ ence between winner also rans Luckily glossy tires can easily fixed scale modeling little sand paper elbow grease Notice photo two PB Aeroscale wheels before after sandpaper treatment Sanding yields just right effectstill smooth realistically dull Sanding yields just right effectstill smooth realistic ally dull Sanding tires perfect job 98 Model Aviation sitting back Monday night trying enjoy game ignore Cosell same time wheels can use couple small screwdrivers remove tire hub makes much easier sand scratching hub hand like use 3M 220 grit Tri-M-Ite Free-Cut Finishing Paper listed Sig catalog cant find locally yours AMA Scale model judges will close enough touch should sand tire again lightly 360 finer grit paper take out obvious scratch marks wont too can see tire photo sanded 220 Most commercial model wheels PB Aeroscale Robart Goldberg new Fox styles name few have molded tire high gloss finish under standable selling product since looks great package types model airplanes Texas Scale Championships held Abilene included CL FF RC scale events exciting success According Jerry Farr combined contests work very well fly UC FF RC scale same field something see Watch next years con test calender 78 going have two days worth Scale Grapevine AMA museum class scale whatever have calling since advent Sport Scale will referred 78-79 rule book Precision Scale action Scale Board Scale Board also adopted rules proposal cycle will allow unlisted flight options necessarily mechanical required before per formed CL Precision Scale Hmmm about P-5l doing Bob Hoover style one-wheel landing annual FAI meeting Paris will already have taken place time read may discuss including FF Scale next WC Proposed US annual FAI meeting Paris will already have taken place time read may discuss including FF Scale next WC Proposed US Mike Stott perennial Nats WC CL Scale ace former editor column taking breather lately keeping busy building large scale display boats Kayot Corp dont count Mike out hell likely come up full slate options turn up 78 Nats Mike Gretz Box 162 Montezuma IA 50171 CL Speed/Hempel/Upton continued page 44 5oIa GIothFilm HOT FUEL PROOF DOPEEXCLUSIVE LOW HEAT AWARD WINNINGCOVERING FOR HIGLOSS AND FLATFOAM & BAtSA FINISHES AVAILABLEFLYING MODELS IN OVER 36 COLORSflexible ble IN BRUSH AND SPRAYfuel pruaf Iightweigbt pflCflH Industries Inc 7060 HOLLYWOOD BLVD. LOS ANGELES CA 90028 rear rotor ABC Supertigre X40 rear rotor ABC OPS 40 front rear rotor ABC 05 Max 40 front rear rotor steel ringed side exhaust HP 40 front rear rotor steel ringed side exhaust D 30056500 cu inOPS 60 rear rotor ABC has new stronger front housing rod backplate assembly OS Max 65 rear rotor side exhaust steel ringed Rossi 65 rear rotor ABC available sometime Spring cannot find engines local hobby shop try following sources Cox Kustom Kraftsmanship PO Box 2699 Laguna Hills CA 92653 Rossi Bills Miniature Engines 1325 Carol Dr Memphis TN 38116 Supertigre & 05 Max World Engines 8960 Rossash Ave Cincinnati OH 45236 HPMidwest Models 6926 West 59th St Chicago IL 60638 OPS K&B Shamrock Com petition Imports PO Box 26247 New Orleans LA 70186 K&B K&B Manufacturing 12152 5 Woodruff Ave Downey CA 90241 know just what some doubt ing Thomas types saying Sure sure production engines will never compete homebuilt monsters completely rebuilding Yes will examples suc cess some people have recently David Layman 5600 N Freeway Apt 102 Houston TX 77076 Dub Jett February 1978 99 TRY THESE OTHER CONTEST QUALITY PRODUCTS PROM PACTRA 3005-4000 cu Formula 40 2800-4000 cu inK&B 40 front or
Edition: Model Aviation - 1978/02
Page Numbers: 42, 98, 99
c~ncixi FrJu Scale 0 MikeGretz NATIONAL SCALE SOCIETY official temporary name new ganization scale modelers weve reading about several months Now can just read about can join sending $500 Sec/Treas Noel Allison 4174 West 120th St Apt C Hawthorne CA 90250 dues provide membership 1978 subscription monthly news letter According Bob Underwood President NSS once mem bership roll permanent possibly suitable name logo can decided upon membership Im enthused about potential scale society benefit FF CL RC scale enthusiasts whether sport competition minded active news letter techniques can provide direction subject research respond questions about methods talk about new old products just spread good word about exciting event modeling Society can encourage participation scale events kinds contests fly-ins static displays guidelines calen dar events national coverage pub lished newsletter Ideas such new categories competition different skill classification guidelines and/or certi fication contest judgesan attempt equitable competitioncould hashed out common meeting ground newsletter Basically think popularity past couple years forming national special interest groups like PAMPA MACA IMAC etc simply attempt better communications between model ers common interest embryo scale organization can us come important influence before AMA Scale Board Nats Planners FAI Team Programs etc achieves its gimis demonstrates its viability short much gained nothing lose trying make ganization go Society can serve categories scale Lend support now give Society foundation grow chance us some good Continued page 98 42 Model Aviation Huge DC-i built Dan Smyth powered four Webra 20 engines Photograph Jerry Farr Seeing believing Flat tires wheel left look realistic simple technique see text takes curse off shiny unrealistic tires some judges note Photograph Mike Gretz Left Nats champ Ray Smith 1/8-scale Messerschmitt will represent US next Scale Championships three-man team Flying weathered 109 Ray has won eight firsts contests entered Right Sliding side windows opening canopy operating controls U R T S S UEMhI V PLANS aLflEI U sY RALPH BECK NOW AVAILABLE FROM 170d0 ENT CORP P0 BOX 9641SAN DIEGO CALIFORNIA 92109 SEND 1O FOR COMPLETE CATALOG OF AIRCRAFT HARDWARE & ACCESSORIESPLUS DESCRIPTIVE JENNYBROCHURE prevent condition Seems like lot work pays off ABC Its really hard tell whats hap pening chrome bore visual signs lot harder see look two things First shiny spots actually just little shinier rest chrome surface hold sleeve up strong light attempt cast shadow top piston comes top stroke shadow means oversize piston has pushed chrome deformed brass substrate beneath either condition lapping indicated Ringed Piston want sleeve shiny top bottom ring travel around surface sleeve either out round warped bulged spots Look rings carefully perfectly wear pattern rings case ringed pistons round true sleeves round rings necessary maximum power must try achieve condi tion difference can easily amount nearly 1000 rpm flying prop Now some basic procedures have followed lets continue running engine Assume engine running fine problems have identified solved Run engine short 2-minute runs until will hold really full power setting dura tion run switch prop 1 pitch lower ss diam eter repeat runs rich settings full power Examine engine continu ously during run signs over heating inability hold rpm fixed setting etc purpose smaller pitch diameter props prepare engine run satisfactorily rpms will achieve air some prop will run 3000 rpm faster intend fly want finish initial break-in Assuming have used same basic fuel started now time switch potent fuels intend use start 5% nitro fuel except FAT fuel engines switch fuel intended use flying RC 12% nitro good year-around brew CL 12% stunt sport 40% second step running high-nitro engines fol lowed 65% 78% depending high nitro application Again start flight prop short runs until engine stabi lizes put lower load props until engine runs easily 3000 rpm over flight prop rpm successive fuels until reach final brew Got notebook Conclusion will achieve two really important objectives following pro cedures outlined First will acquire ability understand some intrica cies engine operate will assured have top mechani cal condition properly prepared fly Second will learn operate engine what sounds like re acts what needle valve response likes started choke prime etc means go out fly will know engine prob lems come up engine initially installed plane boat car will know source problem engine something else Bench running can developed pro vide serious modeler far formation Two examples 1 Running several engines identical make comparison performance swapping parts between engines get best engine J E Albritton Herb Stock ton ran seven Supertigre 29s session recorded 900 rpm difference between best worst engine methodically swapped parts among engines obtain best crankcase bear ings crank rod piston-sleeve set head almost went nuts taking things apart keeping track swaps Net result 700 rpm over best seven engines Analysis what best-best engine provided basis what developing still power provided recorded what did what notebook kept track important observations 2 Running engines dynamometer making power fuel consumption tests sophisticated work type sometimes produces results swap-and-try method just mentioned Ill cover sophisticated testing development procedures later articles next article will power trains engine mount tank prop accessories put model make go Don Jehlik 438 Schweer Dr Star Route 1 Hawthorne NV 89415 CL Scale/Gretz continued page 42 Super Team Ray Smith Los Alamitos California highest ranking member 1978 FAT CL Scale Team having won first both Open AMA Scale team selection program 77 Nats Riverside Ray plans add detail already outstanding Nats winning Messerschmitt BF-109E use World Championships World Cham pionships tenatively scheduled early August England Dimensionally Rays scratch-built Messerschmitt 1 1 ft scale 48 11/16 wing span Its powered OS Max 60 Top Flite 12-6 prop weight ready fly full fuel bomb load 7 pounds Rays ingenious scale building reflects technical background has building flying model airplanes 40 48 years works Laboratory Machine Shop Supervisor Aerospace Corp said main interests model ing currently understandably CL RC scale although also competes CL Combat Stunt Rat Race Car rier beauty AMAs team programs over years has team members selected purely con test performance some other countries know much can afford spend trip oversees Ray Smith other members 78 CL Scale Team first time FAT competitors earned positions open competition can help maintain ideal selec tion process buying FAT stamp $1 send 78 AMA mem bership fee money provides vital support FAT teams future perhaps direct approach Scale Team funding can pro jects National Scale Society Patch sales Nats WC movie slide pro gram rentals could considered among other things Flat Tires Did notice coverage photos airplanes entered Nats World Championships have flat meaning non-glossy tires Its true Now dont scoff mumble something about crazy museum scale builders Scale judging especially Sport Scale game realistic im pressions Glossy non-glossy tires may things first look scrutinizing scale model small secrets can add up difference between model airplane realistic illusion full-size air plane should consider trying next project may worth extra point two often differ ence between winner also rans Luckily glossy tires can easily fixed scale modeling little sand paper elbow grease Notice photo two PB Aeroscale wheels before after sandpaper treatment Sanding yields just right effectstill smooth realistically dull Sanding yields just right effectstill smooth realistic ally dull Sanding tires perfect job 98 Model Aviation sitting back Monday night trying enjoy game ignore Cosell same time wheels can use couple small screwdrivers remove tire hub makes much easier sand scratching hub hand like use 3M 220 grit Tri-M-Ite Free-Cut Finishing Paper listed Sig catalog cant find locally yours AMA Scale model judges will close enough touch should sand tire again lightly 360 finer grit paper take out obvious scratch marks wont too can see tire photo sanded 220 Most commercial model wheels PB Aeroscale Robart Goldberg new Fox styles name few have molded tire high gloss finish under standable selling product since looks great package types model airplanes Texas Scale Championships held Abilene included CL FF RC scale events exciting success According Jerry Farr combined contests work very well fly UC FF RC scale same field something see Watch next years con test calender 78 going have two days worth Scale Grapevine AMA museum class scale whatever have calling since advent Sport Scale will referred 78-79 rule book Precision Scale action Scale Board Scale Board also adopted rules proposal cycle will allow unlisted flight options necessarily mechanical required before per formed CL Precision Scale Hmmm about P-5l doing Bob Hoover style one-wheel landing annual FAI meeting Paris will already have taken place time read may discuss including FF Scale next WC Proposed US annual FAI meeting Paris will already have taken place time read may discuss including FF Scale next WC Proposed US Mike Stott perennial Nats WC CL Scale ace former editor column taking breather lately keeping busy building large scale display boats Kayot Corp dont count Mike out hell likely come up full slate options turn up 78 Nats Mike Gretz Box 162 Montezuma IA 50171 CL Speed/Hempel/Upton continued page 44 5oIa GIothFilm HOT FUEL PROOF DOPEEXCLUSIVE LOW HEAT AWARD WINNINGCOVERING FOR HIGLOSS AND FLATFOAM & BAtSA FINISHES AVAILABLEFLYING MODELS IN OVER 36 COLORSflexible ble IN BRUSH AND SPRAYfuel pruaf Iightweigbt pflCflH Industries Inc 7060 HOLLYWOOD BLVD. LOS ANGELES CA 90028 rear rotor ABC Supertigre X40 rear rotor ABC OPS 40 front rear rotor ABC 05 Max 40 front rear rotor steel ringed side exhaust HP 40 front rear rotor steel ringed side exhaust D 30056500 cu inOPS 60 rear rotor ABC has new stronger front housing rod backplate assembly OS Max 65 rear rotor side exhaust steel ringed Rossi 65 rear rotor ABC available sometime Spring cannot find engines local hobby shop try following sources Cox Kustom Kraftsmanship PO Box 2699 Laguna Hills CA 92653 Rossi Bills Miniature Engines 1325 Carol Dr Memphis TN 38116 Supertigre & 05 Max World Engines 8960 Rossash Ave Cincinnati OH 45236 HPMidwest Models 6926 West 59th St Chicago IL 60638 OPS K&B Shamrock Com petition Imports PO Box 26247 New Orleans LA 70186 K&B K&B Manufacturing 12152 5 Woodruff Ave Downey CA 90241 know just what some doubt ing Thomas types saying Sure sure production engines will never compete homebuilt monsters completely rebuilding Yes will examples suc cess some people have recently David Layman 5600 N Freeway Apt 102 Houston TX 77076 Dub Jett February 1978 99 TRY THESE OTHER CONTEST QUALITY PRODUCTS PROM PACTRA 3005-4000 cu Formula 40 2800-4000 cu inK&B 40 front or
Edition: Model Aviation - 1978/02
Page Numbers: 42, 98, 99
c~ncixi FrJu Scale 0 MikeGretz NATIONAL SCALE SOCIETY official temporary name new ganization scale modelers weve reading about several months Now can just read about can join sending $500 Sec/Treas Noel Allison 4174 West 120th St Apt C Hawthorne CA 90250 dues provide membership 1978 subscription monthly news letter According Bob Underwood President NSS once mem bership roll permanent possibly suitable name logo can decided upon membership Im enthused about potential scale society benefit FF CL RC scale enthusiasts whether sport competition minded active news letter techniques can provide direction subject research respond questions about methods talk about new old products just spread good word about exciting event modeling Society can encourage participation scale events kinds contests fly-ins static displays guidelines calen dar events national coverage pub lished newsletter Ideas such new categories competition different skill classification guidelines and/or certi fication contest judgesan attempt equitable competitioncould hashed out common meeting ground newsletter Basically think popularity past couple years forming national special interest groups like PAMPA MACA IMAC etc simply attempt better communications between model ers common interest embryo scale organization can us come important influence before AMA Scale Board Nats Planners FAI Team Programs etc achieves its gimis demonstrates its viability short much gained nothing lose trying make ganization go Society can serve categories scale Lend support now give Society foundation grow chance us some good Continued page 98 42 Model Aviation Huge DC-i built Dan Smyth powered four Webra 20 engines Photograph Jerry Farr Seeing believing Flat tires wheel left look realistic simple technique see text takes curse off shiny unrealistic tires some judges note Photograph Mike Gretz Left Nats champ Ray Smith 1/8-scale Messerschmitt will represent US next Scale Championships three-man team Flying weathered 109 Ray has won eight firsts contests entered Right Sliding side windows opening canopy operating controls U R T S S UEMhI V PLANS aLflEI U sY RALPH BECK NOW AVAILABLE FROM 170d0 ENT CORP P0 BOX 9641SAN DIEGO CALIFORNIA 92109 SEND 1O FOR COMPLETE CATALOG OF AIRCRAFT HARDWARE & ACCESSORIESPLUS DESCRIPTIVE JENNYBROCHURE prevent condition Seems like lot work pays off ABC Its really hard tell whats hap pening chrome bore visual signs lot harder see look two things First shiny spots actually just little shinier rest chrome surface hold sleeve up strong light attempt cast shadow top piston comes top stroke shadow means oversize piston has pushed chrome deformed brass substrate beneath either condition lapping indicated Ringed Piston want sleeve shiny top bottom ring travel around surface sleeve either out round warped bulged spots Look rings carefully perfectly wear pattern rings case ringed pistons round true sleeves round rings necessary maximum power must try achieve condi tion difference can easily amount nearly 1000 rpm flying prop Now some basic procedures have followed lets continue running engine Assume engine running fine problems have identified solved Run engine short 2-minute runs until will hold really full power setting dura tion run switch prop 1 pitch lower ss diam eter repeat runs rich settings full power Examine engine continu ously during run signs over heating inability hold rpm fixed setting etc purpose smaller pitch diameter props prepare engine run satisfactorily rpms will achieve air some prop will run 3000 rpm faster intend fly want finish initial break-in Assuming have used same basic fuel started now time switch potent fuels intend use start 5% nitro fuel except FAT fuel engines switch fuel intended use flying RC 12% nitro good year-around brew CL 12% stunt sport 40% second step running high-nitro engines fol lowed 65% 78% depending high nitro application Again start flight prop short runs until engine stabi lizes put lower load props until engine runs easily 3000 rpm over flight prop rpm successive fuels until reach final brew Got notebook Conclusion will achieve two really important objectives following pro cedures outlined First will acquire ability understand some intrica cies engine operate will assured have top mechani cal condition properly prepared fly Second will learn operate engine what sounds like re acts what needle valve response likes started choke prime etc means go out fly will know engine prob lems come up engine initially installed plane boat car will know source problem engine something else Bench running can developed pro vide serious modeler far formation Two examples 1 Running several engines identical make comparison performance swapping parts between engines get best engine J E Albritton Herb Stock ton ran seven Supertigre 29s session recorded 900 rpm difference between best worst engine methodically swapped parts among engines obtain best crankcase bear ings crank rod piston-sleeve set head almost went nuts taking things apart keeping track swaps Net result 700 rpm over best seven engines Analysis what best-best engine provided basis what developing still power provided recorded what did what notebook kept track important observations 2 Running engines dynamometer making power fuel consumption tests sophisticated work type sometimes produces results swap-and-try method just mentioned Ill cover sophisticated testing development procedures later articles next article will power trains engine mount tank prop accessories put model make go Don Jehlik 438 Schweer Dr Star Route 1 Hawthorne NV 89415 CL Scale/Gretz continued page 42 Super Team Ray Smith Los Alamitos California highest ranking member 1978 FAT CL Scale Team having won first both Open AMA Scale team selection program 77 Nats Riverside Ray plans add detail already outstanding Nats winning Messerschmitt BF-109E use World Championships World Cham pionships tenatively scheduled early August England Dimensionally Rays scratch-built Messerschmitt 1 1 ft scale 48 11/16 wing span Its powered OS Max 60 Top Flite 12-6 prop weight ready fly full fuel bomb load 7 pounds Rays ingenious scale building reflects technical background has building flying model airplanes 40 48 years works Laboratory Machine Shop Supervisor Aerospace Corp said main interests model ing currently understandably CL RC scale although also competes CL Combat Stunt Rat Race Car rier beauty AMAs team programs over years has team members selected purely con test performance some other countries know much can afford spend trip oversees Ray Smith other members 78 CL Scale Team first time FAT competitors earned positions open competition can help maintain ideal selec tion process buying FAT stamp $1 send 78 AMA mem bership fee money provides vital support FAT teams future perhaps direct approach Scale Team funding can pro jects National Scale Society Patch sales Nats WC movie slide pro gram rentals could considered among other things Flat Tires Did notice coverage photos airplanes entered Nats World Championships have flat meaning non-glossy tires Its true Now dont scoff mumble something about crazy museum scale builders Scale judging especially Sport Scale game realistic im pressions Glossy non-glossy tires may things first look scrutinizing scale model small secrets can add up difference between model airplane realistic illusion full-size air plane should consider trying next project may worth extra point two often differ ence between winner also rans Luckily glossy tires can easily fixed scale modeling little sand paper elbow grease Notice photo two PB Aeroscale wheels before after sandpaper treatment Sanding yields just right effectstill smooth realistically dull Sanding yields just right effectstill smooth realistic ally dull Sanding tires perfect job 98 Model Aviation sitting back Monday night trying enjoy game ignore Cosell same time wheels can use couple small screwdrivers remove tire hub makes much easier sand scratching hub hand like use 3M 220 grit Tri-M-Ite Free-Cut Finishing Paper listed Sig catalog cant find locally yours AMA Scale model judges will close enough touch should sand tire again lightly 360 finer grit paper take out obvious scratch marks wont too can see tire photo sanded 220 Most commercial model wheels PB Aeroscale Robart Goldberg new Fox styles name few have molded tire high gloss finish under standable selling product since looks great package types model airplanes Texas Scale Championships held Abilene included CL FF RC scale events exciting success According Jerry Farr combined contests work very well fly UC FF RC scale same field something see Watch next years con test calender 78 going have two days worth Scale Grapevine AMA museum class scale whatever have calling since advent Sport Scale will referred 78-79 rule book Precision Scale action Scale Board Scale Board also adopted rules proposal cycle will allow unlisted flight options necessarily mechanical required before per formed CL Precision Scale Hmmm about P-5l doing Bob Hoover style one-wheel landing annual FAI meeting Paris will already have taken place time read may discuss including FF Scale next WC Proposed US annual FAI meeting Paris will already have taken place time read may discuss including FF Scale next WC Proposed US Mike Stott perennial Nats WC CL Scale ace former editor column taking breather lately keeping busy building large scale display boats Kayot Corp dont count Mike out hell likely come up full slate options turn up 78 Nats Mike Gretz Box 162 Montezuma IA 50171 CL Speed/Hempel/Upton continued page 44 5oIa GIothFilm HOT FUEL PROOF DOPEEXCLUSIVE LOW HEAT AWARD WINNINGCOVERING FOR HIGLOSS AND FLATFOAM & BAtSA FINISHES AVAILABLEFLYING MODELS IN OVER 36 COLORSflexible ble IN BRUSH AND SPRAYfuel pruaf Iightweigbt pflCflH Industries Inc 7060 HOLLYWOOD BLVD. LOS ANGELES CA 90028 rear rotor ABC Supertigre X40 rear rotor ABC OPS 40 front rear rotor ABC 05 Max 40 front rear rotor steel ringed side exhaust HP 40 front rear rotor steel ringed side exhaust D 30056500 cu inOPS 60 rear rotor ABC has new stronger front housing rod backplate assembly OS Max 65 rear rotor side exhaust steel ringed Rossi 65 rear rotor ABC available sometime Spring cannot find engines local hobby shop try following sources Cox Kustom Kraftsmanship PO Box 2699 Laguna Hills CA 92653 Rossi Bills Miniature Engines 1325 Carol Dr Memphis TN 38116 Supertigre & 05 Max World Engines 8960 Rossash Ave Cincinnati OH 45236 HPMidwest Models 6926 West 59th St Chicago IL 60638 OPS K&B Shamrock Com petition Imports PO Box 26247 New Orleans LA 70186 K&B K&B Manufacturing 12152 5 Woodruff Ave Downey CA 90241 know just what some doubt ing Thomas types saying Sure sure production engines will never compete homebuilt monsters completely rebuilding Yes will examples suc cess some people have recently David Layman 5600 N Freeway Apt 102 Houston TX 77076 Dub Jett February 1978 99 TRY THESE OTHER CONTEST QUALITY PRODUCTS PROM PACTRA 3005-4000 cu Formula 40 2800-4000 cu inK&B 40 front or