I Scale Mike Stoft IN LAST MONTHS article cov ered some reasons lot modelers overlook Scale getting modeling covered various points such industrious research required build model took look some necessary equipment tools might helpful building So months article well follow up personal characteristics abili ties good scale builder should cultivate First scale builder should enjoy air planes working Dont pick model will tire easily because long hours will spent working Some models require building time several years because complexity also some scale builders take two years build planes match standards Above good modeler needs patience just kind patience will get him through long hours detailed building kind also allows him get up walk away persistent problem come back later fresh start Good workmanship also essential list qualities Workmanship counts 50% static score other 50% accredited detailing So details model such exact rivet count cockpit landing gear detail workmanship poor have possibility getting 50% static score Thats too points missing out Working knowledge woodworking extremely important advantage have Most model detailing work deals wood Take time study different stresses graining wood use bending shap ing carving Certain grains will allow bend wood extremely other woods inter-mixed grains will have tendency break start bend Mechanical electrical knowledge often very helpful electrical knowl edge concerned dont have know much local electrician infor mation often needed about micro-switch es rotary switches small electrical motors hook up control system switches could operate such items landing gear revolving gun turrets lights name few Mechanical hookups usually acti vated pulling lines obtain desired performance would include basic knowledge bellcranks pushrods control horns model builder takes pride model building will show finished product model best flying field entered contest pride take will make just much better scale modeler Ive saved important qualities till last flying ability important have cause scale models built probably some worst flying models hardest maneuver no substitute flying experience out flying circle plane have worked long hard percentage flying points available towards score increasing over what Continued page 85 26 Model Aviation Dan Osdoba readies T-6G Texan took second Sr Sport Scale 1976 Nets De sign contributing editor Mike Stott Engine McCoy 40 prop Rev-Up 10-6W contrast sizetoo small flies like brick too big may have enough power Trying hide behind hat Mike himself right-on Myers Its also big enough make detailing easiernote trim tabs control surfaces drag given wing area have better potential setting speed rec ord deltas though seeing still bigger problem electrostatic wing leveler put new bird mostly help problem air plane will stay upright pilot takes hands off controls device saved Delta several times during trials time went through sun George shouting Where about 5 seconds fore found would have ground time auto pilot As just kinda got far awaygoing like Concorde Wrong Way Corrigan controls aban doned Delta after three flights trial because some control surface problems looked too big fix time available Maybe next time follow-on article some tech nical stuff about drag horsepower gravity propellers flywheels speed flying will discussed now remaining avail able space must absolutely devoted saying thanks Johnson Space Cen ter Club providing funnest times hobbying Ive ever life George Pickrell feels same superbly organized affair Plenty good workers stuck job lots friendly help always available golly some marvelous senses humor down corner Texas Owen Morris Bert Streigler served Contest Directors John Kiker hosted us super tour im pressive facilities JSC JSC Club members pitched George Pickrell say thank truly wonderful experience full fun glad hard work made possible Howard Bittner set Helicopter speed record also wish could have erased Soviet speed number Please again some time Well pitch thats sure CL Scale/Stott Continued page 26 has past years judges should no longer giving maximum points just because did maneuver flying option now instructed judge performance flight realism quality performance read both articles regard ing scale modeling can understand some discouraged scale takes lot patience determination ability just building flying also become good scale builder Scale easiest areas modeling highly rewarding have correction ALA HAND SELECTED PRECISION SANDED SHEETS KS DOWELS S TRIANGLES KS PLANKS PUCUD Industrle8 Inc 7080 HOLLYWOOD BLVD. LOS ANGELES CA 90028 RUBBER POWERED FLYING MODELS NEW Kits 28INSPAN GIPSY MOiNDee Nit 2 13 IN SPAN P NUT KIT $349 J4 neeVite 1 13 IN SPAN P-NUTKIT $34916 IN SPAN SPORT $349 PEANUT SCALE KITS PIETENPOL$329 MILES$329 TURBULENT$329 PIPER i3 CUB$329 ANDREASON$349 COUGAR$349 MUSTANG$349 ZERO$349 SPORT MODEL KITS STRINGLESS WONDER $249 PECK ROG$139 KITS 0 PLANS S ACCESSORIES CO-2 ENGINES SHARK & BROWN REAL JAPANESE TISSUE-PROPS COMPLETE CATALOG 50 MANY HARD TO FIND ITEMS PeckwPIvmers PO BOX 2498-AMA LA MESA CALIF 92041 PHONE 17141 469-8675 714 442-4636 April 1977 85 TRY THESE OTHER CONTEST QUALITY PRODUCTS FROM PACTRA SoIa Film EXCLUSIVE LOW-HEAT COVERING FOR FOAM&BALSA FLYING MODELS flexible ble fuel proof tweight 5% nitro $650 gallon Custom Blended Bill Hager 10% nitro $725 gallon 15% nitro $800 gallon 54 gallon drum 15% $21954 HARRYS HOBBIESWESHIP FREE WITH 5214 N Dixie Drive Dayton Ohio 45414 past articles stated World Championships may going threeyear schedule have informed going remain present two-year schedule time being personally hope reconsider threeyear proposal future date Mike Stott 118 East Wheeler St North Mankato MN 56001 CL Combat/Johnson Continued page 27 lots USA rest dont have remotest idea about FAI Combat get practice develop skills AMA Slow Combat good starting place flown FAI style Eliminate kill entirely count paper cuts 100 points given cutting string right back started having get real close get last bit last two contests have flown way youll find have turn away guaranteed cut because too much streamer will taken off Five min utes combat awfully long en joyable time spend air forget quick kill Its attitude 100 GALLON ORDER GM Fuel Dayton Nationals equipment makes good matches Gentlemen flying T-Sqaures will put better match rascals flying latest Fast Combat creation During Condor Legion contest San Francisco pilot plane fly out Bay Two weeks later Spe cial Pro meet infamous Rich Brasher yours truly flying Richs plane went orbit Over 20 minutes clock model landed unhurt about 100 yards launch site way AMA Junior member Russell Hester won meet beating Brasher final latest triumph after winning clubs annual double elimination com bat meet last September Hesters have two spectacular fires lately recent Early Bird Contest Poway Calif looked like Chinese set off another 10-megaton bomb Fox Combat Special 1976 version has become universal choice both Fast Slow Combat fliers want some extra zip planes Nothing really needs done engine intended Slow Combat going Fast ship might good idea re place rear bearing preci sion unit bearing could find superior the engine MORE wM13OfflQ~ same powerYELLOWN 3 e p1tC7 1 B ad ~seTao ~ed0otQ~~ e53 54 5 Blade Pusher -szes e.6-3 6-4 354 \ 68-6854 9-610-6 1 3 Blade TCactor 5-35-4 6-36-4 504 3 Blade Pusher 6-3504 5~35W4304 6-36-4354 7 47-67-850 8 48-68-8654 9-49-697q8 10-4106854 11-411-611-851 AC 124 125126i5o ORISH BROS ST jOHN INDIANA 46373 too expensive Class VII FAG SR8KI have trouble finding bearings own may take easy way out send $600 Hoffelt Group Aerosport Division 1021 Sapphire St San Diego California 92109 bearing youll receive quite bit better what youre replacing will need fit crankshaft Put several layers masking tape threaded portion crank stick end drill polish some emery paper oil Make sure dont take off too much bearing fit just nice push fit Dont tell machinist friends about technique either Most broken cranks like have gone counter weight figure might help although nothing guaran teed sure check head clearance new engine including Fox tightest four Foxes 004 loosest 016 prefer looser fit Head clearance isnt whole story since combustion chamber volumes vary too Find good running motor doesnt blow plugs see drops light machine oil takes fill up chamber first plug thread engine TDC Slow Combat Inboard Tank next set rules may ban inboard tank now very much part Slow Combat Motors sliding farther aft bodies becoming like monobooms As simple tanks often hardest problem solve especially mounted inboard engine plane maneuvered violently common problem having engine go over-rich after launch possible fool engine running pickup tube out the- extreme inboard side tank engine still has suck fuel uphill against centrifugal force small amount fuel line doesnt seem present siphoning problem Stand model its right wing tip youll get idea fuel going during flight wide flat tanks used stunters seem work better tall narrow profile tanks either case pickup tube should outboard rear corner uniflow vent slightly inside about ront both exit extreme inboard side An over-flow vent may used simplify fueling should located top left corner sealing plug will easy re move Uniflow tanks have airtight sure pressure check yours before use Hint running engine ground seal off uniflow vent finger engine doesnt lean die have leak someplace Brass sheet may soldered tank writing advertisers mention read about MA 86 Model Aviation
Edition: Model Aviation - 1977/04
Page Numbers: 26, 85, 86
I Scale Mike Stoft IN LAST MONTHS article cov ered some reasons lot modelers overlook Scale getting modeling covered various points such industrious research required build model took look some necessary equipment tools might helpful building So months article well follow up personal characteristics abili ties good scale builder should cultivate First scale builder should enjoy air planes working Dont pick model will tire easily because long hours will spent working Some models require building time several years because complexity also some scale builders take two years build planes match standards Above good modeler needs patience just kind patience will get him through long hours detailed building kind also allows him get up walk away persistent problem come back later fresh start Good workmanship also essential list qualities Workmanship counts 50% static score other 50% accredited detailing So details model such exact rivet count cockpit landing gear detail workmanship poor have possibility getting 50% static score Thats too points missing out Working knowledge woodworking extremely important advantage have Most model detailing work deals wood Take time study different stresses graining wood use bending shap ing carving Certain grains will allow bend wood extremely other woods inter-mixed grains will have tendency break start bend Mechanical electrical knowledge often very helpful electrical knowl edge concerned dont have know much local electrician infor mation often needed about micro-switch es rotary switches small electrical motors hook up control system switches could operate such items landing gear revolving gun turrets lights name few Mechanical hookups usually acti vated pulling lines obtain desired performance would include basic knowledge bellcranks pushrods control horns model builder takes pride model building will show finished product model best flying field entered contest pride take will make just much better scale modeler Ive saved important qualities till last flying ability important have cause scale models built probably some worst flying models hardest maneuver no substitute flying experience out flying circle plane have worked long hard percentage flying points available towards score increasing over what Continued page 85 26 Model Aviation Dan Osdoba readies T-6G Texan took second Sr Sport Scale 1976 Nets De sign contributing editor Mike Stott Engine McCoy 40 prop Rev-Up 10-6W contrast sizetoo small flies like brick too big may have enough power Trying hide behind hat Mike himself right-on Myers Its also big enough make detailing easiernote trim tabs control surfaces drag given wing area have better potential setting speed rec ord deltas though seeing still bigger problem electrostatic wing leveler put new bird mostly help problem air plane will stay upright pilot takes hands off controls device saved Delta several times during trials time went through sun George shouting Where about 5 seconds fore found would have ground time auto pilot As just kinda got far awaygoing like Concorde Wrong Way Corrigan controls aban doned Delta after three flights trial because some control surface problems looked too big fix time available Maybe next time follow-on article some tech nical stuff about drag horsepower gravity propellers flywheels speed flying will discussed now remaining avail able space must absolutely devoted saying thanks Johnson Space Cen ter Club providing funnest times hobbying Ive ever life George Pickrell feels same superbly organized affair Plenty good workers stuck job lots friendly help always available golly some marvelous senses humor down corner Texas Owen Morris Bert Streigler served Contest Directors John Kiker hosted us super tour im pressive facilities JSC JSC Club members pitched George Pickrell say thank truly wonderful experience full fun glad hard work made possible Howard Bittner set Helicopter speed record also wish could have erased Soviet speed number Please again some time Well pitch thats sure CL Scale/Stott Continued page 26 has past years judges should no longer giving maximum points just because did maneuver flying option now instructed judge performance flight realism quality performance read both articles regard ing scale modeling can understand some discouraged scale takes lot patience determination ability just building flying also become good scale builder Scale easiest areas modeling highly rewarding have correction ALA HAND SELECTED PRECISION SANDED SHEETS KS DOWELS S TRIANGLES KS PLANKS PUCUD Industrle8 Inc 7080 HOLLYWOOD BLVD. LOS ANGELES CA 90028 RUBBER POWERED FLYING MODELS NEW Kits 28INSPAN GIPSY MOiNDee Nit 2 13 IN SPAN P NUT KIT $349 J4 neeVite 1 13 IN SPAN P-NUTKIT $34916 IN SPAN SPORT $349 PEANUT SCALE KITS PIETENPOL$329 MILES$329 TURBULENT$329 PIPER i3 CUB$329 ANDREASON$349 COUGAR$349 MUSTANG$349 ZERO$349 SPORT MODEL KITS STRINGLESS WONDER $249 PECK ROG$139 KITS 0 PLANS S ACCESSORIES CO-2 ENGINES SHARK & BROWN REAL JAPANESE TISSUE-PROPS COMPLETE CATALOG 50 MANY HARD TO FIND ITEMS PeckwPIvmers PO BOX 2498-AMA LA MESA CALIF 92041 PHONE 17141 469-8675 714 442-4636 April 1977 85 TRY THESE OTHER CONTEST QUALITY PRODUCTS FROM PACTRA SoIa Film EXCLUSIVE LOW-HEAT COVERING FOR FOAM&BALSA FLYING MODELS flexible ble fuel proof tweight 5% nitro $650 gallon Custom Blended Bill Hager 10% nitro $725 gallon 15% nitro $800 gallon 54 gallon drum 15% $21954 HARRYS HOBBIESWESHIP FREE WITH 5214 N Dixie Drive Dayton Ohio 45414 past articles stated World Championships may going threeyear schedule have informed going remain present two-year schedule time being personally hope reconsider threeyear proposal future date Mike Stott 118 East Wheeler St North Mankato MN 56001 CL Combat/Johnson Continued page 27 lots USA rest dont have remotest idea about FAI Combat get practice develop skills AMA Slow Combat good starting place flown FAI style Eliminate kill entirely count paper cuts 100 points given cutting string right back started having get real close get last bit last two contests have flown way youll find have turn away guaranteed cut because too much streamer will taken off Five min utes combat awfully long en joyable time spend air forget quick kill Its attitude 100 GALLON ORDER GM Fuel Dayton Nationals equipment makes good matches Gentlemen flying T-Sqaures will put better match rascals flying latest Fast Combat creation During Condor Legion contest San Francisco pilot plane fly out Bay Two weeks later Spe cial Pro meet infamous Rich Brasher yours truly flying Richs plane went orbit Over 20 minutes clock model landed unhurt about 100 yards launch site way AMA Junior member Russell Hester won meet beating Brasher final latest triumph after winning clubs annual double elimination com bat meet last September Hesters have two spectacular fires lately recent Early Bird Contest Poway Calif looked like Chinese set off another 10-megaton bomb Fox Combat Special 1976 version has become universal choice both Fast Slow Combat fliers want some extra zip planes Nothing really needs done engine intended Slow Combat going Fast ship might good idea re place rear bearing preci sion unit bearing could find superior the engine MORE wM13OfflQ~ same powerYELLOWN 3 e p1tC7 1 B ad ~seTao ~ed0otQ~~ e53 54 5 Blade Pusher -szes e.6-3 6-4 354 \ 68-6854 9-610-6 1 3 Blade TCactor 5-35-4 6-36-4 504 3 Blade Pusher 6-3504 5~35W4304 6-36-4354 7 47-67-850 8 48-68-8654 9-49-697q8 10-4106854 11-411-611-851 AC 124 125126i5o ORISH BROS ST jOHN INDIANA 46373 too expensive Class VII FAG SR8KI have trouble finding bearings own may take easy way out send $600 Hoffelt Group Aerosport Division 1021 Sapphire St San Diego California 92109 bearing youll receive quite bit better what youre replacing will need fit crankshaft Put several layers masking tape threaded portion crank stick end drill polish some emery paper oil Make sure dont take off too much bearing fit just nice push fit Dont tell machinist friends about technique either Most broken cranks like have gone counter weight figure might help although nothing guaran teed sure check head clearance new engine including Fox tightest four Foxes 004 loosest 016 prefer looser fit Head clearance isnt whole story since combustion chamber volumes vary too Find good running motor doesnt blow plugs see drops light machine oil takes fill up chamber first plug thread engine TDC Slow Combat Inboard Tank next set rules may ban inboard tank now very much part Slow Combat Motors sliding farther aft bodies becoming like monobooms As simple tanks often hardest problem solve especially mounted inboard engine plane maneuvered violently common problem having engine go over-rich after launch possible fool engine running pickup tube out the- extreme inboard side tank engine still has suck fuel uphill against centrifugal force small amount fuel line doesnt seem present siphoning problem Stand model its right wing tip youll get idea fuel going during flight wide flat tanks used stunters seem work better tall narrow profile tanks either case pickup tube should outboard rear corner uniflow vent slightly inside about ront both exit extreme inboard side An over-flow vent may used simplify fueling should located top left corner sealing plug will easy re move Uniflow tanks have airtight sure pressure check yours before use Hint running engine ground seal off uniflow vent finger engine doesnt lean die have leak someplace Brass sheet may soldered tank writing advertisers mention read about MA 86 Model Aviation
Edition: Model Aviation - 1977/04
Page Numbers: 26, 85, 86
I Scale Mike Stoft IN LAST MONTHS article cov ered some reasons lot modelers overlook Scale getting modeling covered various points such industrious research required build model took look some necessary equipment tools might helpful building So months article well follow up personal characteristics abili ties good scale builder should cultivate First scale builder should enjoy air planes working Dont pick model will tire easily because long hours will spent working Some models require building time several years because complexity also some scale builders take two years build planes match standards Above good modeler needs patience just kind patience will get him through long hours detailed building kind also allows him get up walk away persistent problem come back later fresh start Good workmanship also essential list qualities Workmanship counts 50% static score other 50% accredited detailing So details model such exact rivet count cockpit landing gear detail workmanship poor have possibility getting 50% static score Thats too points missing out Working knowledge woodworking extremely important advantage have Most model detailing work deals wood Take time study different stresses graining wood use bending shap ing carving Certain grains will allow bend wood extremely other woods inter-mixed grains will have tendency break start bend Mechanical electrical knowledge often very helpful electrical knowl edge concerned dont have know much local electrician infor mation often needed about micro-switch es rotary switches small electrical motors hook up control system switches could operate such items landing gear revolving gun turrets lights name few Mechanical hookups usually acti vated pulling lines obtain desired performance would include basic knowledge bellcranks pushrods control horns model builder takes pride model building will show finished product model best flying field entered contest pride take will make just much better scale modeler Ive saved important qualities till last flying ability important have cause scale models built probably some worst flying models hardest maneuver no substitute flying experience out flying circle plane have worked long hard percentage flying points available towards score increasing over what Continued page 85 26 Model Aviation Dan Osdoba readies T-6G Texan took second Sr Sport Scale 1976 Nets De sign contributing editor Mike Stott Engine McCoy 40 prop Rev-Up 10-6W contrast sizetoo small flies like brick too big may have enough power Trying hide behind hat Mike himself right-on Myers Its also big enough make detailing easiernote trim tabs control surfaces drag given wing area have better potential setting speed rec ord deltas though seeing still bigger problem electrostatic wing leveler put new bird mostly help problem air plane will stay upright pilot takes hands off controls device saved Delta several times during trials time went through sun George shouting Where about 5 seconds fore found would have ground time auto pilot As just kinda got far awaygoing like Concorde Wrong Way Corrigan controls aban doned Delta after three flights trial because some control surface problems looked too big fix time available Maybe next time follow-on article some tech nical stuff about drag horsepower gravity propellers flywheels speed flying will discussed now remaining avail able space must absolutely devoted saying thanks Johnson Space Cen ter Club providing funnest times hobbying Ive ever life George Pickrell feels same superbly organized affair Plenty good workers stuck job lots friendly help always available golly some marvelous senses humor down corner Texas Owen Morris Bert Streigler served Contest Directors John Kiker hosted us super tour im pressive facilities JSC JSC Club members pitched George Pickrell say thank truly wonderful experience full fun glad hard work made possible Howard Bittner set Helicopter speed record also wish could have erased Soviet speed number Please again some time Well pitch thats sure CL Scale/Stott Continued page 26 has past years judges should no longer giving maximum points just because did maneuver flying option now instructed judge performance flight realism quality performance read both articles regard ing scale modeling can understand some discouraged scale takes lot patience determination ability just building flying also become good scale builder Scale easiest areas modeling highly rewarding have correction ALA HAND SELECTED PRECISION SANDED SHEETS KS DOWELS S TRIANGLES KS PLANKS PUCUD Industrle8 Inc 7080 HOLLYWOOD BLVD. LOS ANGELES CA 90028 RUBBER POWERED FLYING MODELS NEW Kits 28INSPAN GIPSY MOiNDee Nit 2 13 IN SPAN P NUT KIT $349 J4 neeVite 1 13 IN SPAN P-NUTKIT $34916 IN SPAN SPORT $349 PEANUT SCALE KITS PIETENPOL$329 MILES$329 TURBULENT$329 PIPER i3 CUB$329 ANDREASON$349 COUGAR$349 MUSTANG$349 ZERO$349 SPORT MODEL KITS STRINGLESS WONDER $249 PECK ROG$139 KITS 0 PLANS S ACCESSORIES CO-2 ENGINES SHARK & BROWN REAL JAPANESE TISSUE-PROPS COMPLETE CATALOG 50 MANY HARD TO FIND ITEMS PeckwPIvmers PO BOX 2498-AMA LA MESA CALIF 92041 PHONE 17141 469-8675 714 442-4636 April 1977 85 TRY THESE OTHER CONTEST QUALITY PRODUCTS FROM PACTRA SoIa Film EXCLUSIVE LOW-HEAT COVERING FOR FOAM&BALSA FLYING MODELS flexible ble fuel proof tweight 5% nitro $650 gallon Custom Blended Bill Hager 10% nitro $725 gallon 15% nitro $800 gallon 54 gallon drum 15% $21954 HARRYS HOBBIESWESHIP FREE WITH 5214 N Dixie Drive Dayton Ohio 45414 past articles stated World Championships may going threeyear schedule have informed going remain present two-year schedule time being personally hope reconsider threeyear proposal future date Mike Stott 118 East Wheeler St North Mankato MN 56001 CL Combat/Johnson Continued page 27 lots USA rest dont have remotest idea about FAI Combat get practice develop skills AMA Slow Combat good starting place flown FAI style Eliminate kill entirely count paper cuts 100 points given cutting string right back started having get real close get last bit last two contests have flown way youll find have turn away guaranteed cut because too much streamer will taken off Five min utes combat awfully long en joyable time spend air forget quick kill Its attitude 100 GALLON ORDER GM Fuel Dayton Nationals equipment makes good matches Gentlemen flying T-Sqaures will put better match rascals flying latest Fast Combat creation During Condor Legion contest San Francisco pilot plane fly out Bay Two weeks later Spe cial Pro meet infamous Rich Brasher yours truly flying Richs plane went orbit Over 20 minutes clock model landed unhurt about 100 yards launch site way AMA Junior member Russell Hester won meet beating Brasher final latest triumph after winning clubs annual double elimination com bat meet last September Hesters have two spectacular fires lately recent Early Bird Contest Poway Calif looked like Chinese set off another 10-megaton bomb Fox Combat Special 1976 version has become universal choice both Fast Slow Combat fliers want some extra zip planes Nothing really needs done engine intended Slow Combat going Fast ship might good idea re place rear bearing preci sion unit bearing could find superior the engine MORE wM13OfflQ~ same powerYELLOWN 3 e p1tC7 1 B ad ~seTao ~ed0otQ~~ e53 54 5 Blade Pusher -szes e.6-3 6-4 354 \ 68-6854 9-610-6 1 3 Blade TCactor 5-35-4 6-36-4 504 3 Blade Pusher 6-3504 5~35W4304 6-36-4354 7 47-67-850 8 48-68-8654 9-49-697q8 10-4106854 11-411-611-851 AC 124 125126i5o ORISH BROS ST jOHN INDIANA 46373 too expensive Class VII FAG SR8KI have trouble finding bearings own may take easy way out send $600 Hoffelt Group Aerosport Division 1021 Sapphire St San Diego California 92109 bearing youll receive quite bit better what youre replacing will need fit crankshaft Put several layers masking tape threaded portion crank stick end drill polish some emery paper oil Make sure dont take off too much bearing fit just nice push fit Dont tell machinist friends about technique either Most broken cranks like have gone counter weight figure might help although nothing guaran teed sure check head clearance new engine including Fox tightest four Foxes 004 loosest 016 prefer looser fit Head clearance isnt whole story since combustion chamber volumes vary too Find good running motor doesnt blow plugs see drops light machine oil takes fill up chamber first plug thread engine TDC Slow Combat Inboard Tank next set rules may ban inboard tank now very much part Slow Combat Motors sliding farther aft bodies becoming like monobooms As simple tanks often hardest problem solve especially mounted inboard engine plane maneuvered violently common problem having engine go over-rich after launch possible fool engine running pickup tube out the- extreme inboard side tank engine still has suck fuel uphill against centrifugal force small amount fuel line doesnt seem present siphoning problem Stand model its right wing tip youll get idea fuel going during flight wide flat tanks used stunters seem work better tall narrow profile tanks either case pickup tube should outboard rear corner uniflow vent slightly inside about ront both exit extreme inboard side An over-flow vent may used simplify fueling should located top left corner sealing plug will easy re move Uniflow tanks have airtight sure pressure check yours before use Hint running engine ground seal off uniflow vent finger engine doesnt lean die have leak someplace Brass sheet may soldered tank writing advertisers mention read about MA 86 Model Aviation