I PROMISED would write about throttles month have quite few ideas try out havent yet chance test goal has try find variety throttle schemes simple operate readily avail able through hobby shops simplest throttle suction sys tem using standard RC carburetor wide variety RC 40 60 engines available latter designs quite powerful disadvantage using suction system engine power will somewhat lower pressurized system wide-open intake great est power difference seen using suction carburetor designed size engine using because carburetors designed provide consistent performance over wide range conditions carbs have small throat areas fuel draw will relatively high Most engines can run quite successfully much larger carburetors Ive talked before about carburetor throat area Profile Carrier engines 35-40 size engine can function quite well carb throat area 30mm2 square millimeters about 50-80% larger carburetors supplied size engine fact about size carbu retor usually found 60 large Perry carbs example have throat areas 29 mm2 except Kraft 61 OPS 60 about 37 mm2 have used large Perry carb Fox 36 no problems rear intake en2ine should able use larger carbs because fuel tank can closer carb havent yet run tests 60-size Class II engines should able handle 55 mm2 carb trouble Perhaps carb large 62 mm2 would work hope because size 900 series Perry carburetors designed use pump secret success suction fuel system fuel tank Ive shown preference fuel tank designa modifica tion common uniflow tank George Cox uses chicken-hopper tank MO-i profile see photo good results tin nod nit nnao OR 40 Model Aviation Control Line. Navy Carrier Richard Perry George Cox won Profile event National Championships MO-i modified Charles Reeves design used flaps ailerons rudder Area 360 sq Sal Costellis profile version Sf 109T German carrier fighter modified Midwest kit large wingwithin 44 limit span improves slow flight capability Perry carburetors 40 engines have throat areas 1 mm br suction left 62 mm pump carburetor right Increased throat area can provide increased engine power Power George Coxs profile MO-i Paul Tune conversion OS 40 FSR Rev-Up 9/7-1/2 nylon prop fed chicken hopper tank HazelnutMBH-1 I CSD-1 I 22W ws o American Eagle catalog 25c I MODERNISTIC MODELS P0 BOX 6974 ALBUQ NM 87197 J should tire such machine very effec tive solution might take com bat match can almost guarantee instant cure such emotional state writer can ever pin Rich down submitting design feels truly competitive may able get set plans COPAs could utilized begin ners out However pointed out March 1978 issue Model Aviation Rich does use basically VooDoo type Half-A design recommending least 200 sq wing 18 degrees engine off set creates tricycle landing gear craft whole thing weighs about 8 9 ounces Rich enclosed unreproduceable sketch plan proposed Blazing 50 Half-A stunter should make SSF remember thats Serious Stunt Flier drool Blazing 50 features beautiful elliptical wing 50-inch span matching stabilator top view plane has lines Charley Mackeys svelte Starlight 1967 side view looks like Starship 2001 graceful fuselage trike gear wing will have about 415 sq total weight should about 16 oz Lets hope Rich can get transformed flying model could beautiful stunter Rich also has some other hints pass new Gb Bees definitely give around 1000 rpm increase Tee Dee air 21 about 222 grand some smoothness engine run sacrificed unavailable Testor 6 X 4 prop gives identical lap speeds Cox competition 6 X 3 prop doesnt tend overheat engine maneuvers sometimes case Magnum fuel Cox 6 X 3 competition prop subject fuel systems Rich says Tatone makes small pen bladders work very well Half-As pen bladder requires about 12 pounds start drops down about 6 pounds using 2 oz syringe bathroom scales measure pressure light weight low cost consistency simplicity extra power availability pressure system very desirable once system under stood especially good use smaller engines light aircraft such Half-A stunters Some concern has expressed over 008 lines used Half-A According Rich just need take care fragile things has problems people walking breaks unravelling procedure use untwisting lines use hand closest airplane separate lines wiping cloth other hand used twist hold tension lines between two hands avoid allowing kinks start have never gotten kink using procedure oil buildup lines prevented says Rich also uses what appears quadruped wrap ends lines wraps 1/2 inch down line clip wraps back clip loops 008 line around clip again wraps 1/4 inch down back After always uses epoxy other glue finish off tapered end good set unkinked lines should easily take 16 pounds pull test 008 lines should adequate winds up 25 mph present Half-A power levels Just stay safe side Rich recommends switch ing 012 lines winds above 20mph going 50 52 feet length Winston-Salem Control Line Champion ships Les McDonald won event held Raady-toFIy Foam RC Planes Available either MRC-Enya 15 MRC Mabuchi electric power system installed realistic planes assemble hour Wing spans 48 lengths 32 Trainer Hawk 15 engine factory installed fuel tank control rods horns Two-chan radio included controls nosewheel steering rudder elevator Third chan nel desired throttle Price $9800 Elec tra-Fli Trainer Electric power system place also horns rodsdesigned 2 chan Elec tric system consists motor CVR cutoff voltage regulator600 mah battery fast charg er operable cigarette lighter25 minutes used system Third channel can added control CVRs microswitch turns motor off flight con serving power gliding periods between powered flight CVR unit prevents overcharg ing allows battery operate radio servo motor Automatic cutoff prevent deep dis charge CVR monitors battery voltage cuts power motor before voltage drops too low always enough battery power glide back control Price $18995 Modal Rectifier Corp 2500 Woodbridge Ave Edison NJ 08817 product review product review product review June 17-18 flying new I-beam wing Stiletto new Stiletto 60 inches span 650 sq wing Weight 52 oz stabilizer 32 in span root chord inch thick Very short flaps used Les effort give better turning ability Norm Whittle finished second 4700 Les 4945 Third place went Bob Galle now living New Jer sey Claus Maikis competed way West Germany finished seventh after having some trouble plane Advanced PAMPA stunt won Vince Schnetzer Miami Florida Stiletto beat out Les best appearance points information stunt PAMPA write Wynn Paul 1640 Maywick Drive Lexington KY 40504 CL Carrier/Perry continued page 40 Bill Lee July 78 MA Don Jehlik June 78 MA gave good descriptions various types fuel tanks opera tions sure read columns close relative suction system reported operating quite successfully Arizona Mike DelPonte isusing Perry pump carburetor pump Class engine get boost tank pres sure help large carb Mike puts tank vent exhaust stack obviously works since Mike placed second Buck eye Arizona year 333 havent tried yet could turn out best thing since sliced bread Just careful unwanted fires ex haust stack next step up order complexity pump system two pumps readily available Perry Robart Robart SuperPumper MkII has maxi mum output three ounces per minute might satisfy some thirsty Class II engines Robarts High Volume Pumper should used higher flow rates required Perry 900 series carburetors pump systems have plunger changes mixture settings during verted flight upright engine instal lation located under screw adjacent fuel line connection dont need it can cause problems certain carburetor attitudes because centrifugal force Take plunger out least screw adjustment screw cant cause trouble Pump systems work harder adjust initially suction systems less critical tank position cost because pump primary disadvantage letter Pete Mazur HiLow-Landings newsletter mentioned use pump conjunction ex haust restrictor K&B Semco make boaters idea restrictor slows engine pump pro98 Model Aviation ATTENTION RC DEALERS Order large stock Kraft radios ServosKraft EnginesAir born unitsPlus accessories J KRAFT SOUTHWESTERN INC 5725 E Lancaster Ft worth TX 76112 a17-451-7537 Night 429-3a28 572-1452 product review product review product revrnA vides less fuel therefore get auto matic mixture adjustment tried very briefly test stand limited success can probably made work will require little effort lot luck subscribe Hi-Low-Landings newsletter miss ing out excellent Navy Carrier pub lication contains contest results Top Ten listings hints equipment used top competitors photos opportunity communicate rest Carrier community through letters pub lished sign up year send five dollars Ron Duly 1806 Karen Street Burbank CA 91504 Dick Perry 5016 ngelita Ave Dayton OH 45424 CL Speed/Hempel/Upton continued page 41 wall cleaned spiders out pipe showed everyone groove 19600 mph third place Lenny Waltemath Kenosha WI hoping psyche everyone out placing 200 mph flight early Sat am took eye off ship tapped down hard enough break stab tried get wrist pylon yoke Saturday night repairs evidently lacked proper alignment flown Sunday ship grooving well 19410 mph flight placed him fourth must make couple comments top four jet speed ships four different head setups L-H-H entry Super Burp MKII Langlois Pardue extended head intake diameter reduced 125 Marceneros Sidewinder large bore Hoyt Raven head reduced down epoxy putty 125 throat Davis just ran spiders out old stock Dyna head-powered Sidewinder Waltemath running large bore Raven Side winder L-H-H add benzene 50-50 fuel mixture get enough laps clocking 6 oz tank glad see Earl Witt AMA Sec-Treas down visit Said wanted see what AAAA bally hoo about flight didnt leave Saturday night able stay around help 160 people eat barbecue fried chicken order 200 people Dub Jett won chicken eating contest four helpings opportunity socialize talk other model ing fraternity would like express thanks Bill Pardue Contest Director United States Control Line Championships Event Directors Rickey Barrier Harold Nash John Bartley excellent job did making things move along smoothly Hope see yall next year Product Note Toms Custom Engines 1242 GardengateCir Garland TX 75043 214 271-8201 open limited busi ness again Chrome work K&B mods speciality Gene Hempel Tom Upton 301 N Yale Dr Garland TX 75042 N IMAS/Martin continued page 44 Senior Richard Whitten second Junior Mike Van Gorder third Junior Dave Lindley doesnt take Sherlock Holmes deduce Junior Senior indoor records easier ex ceed serious younger modeler Open records nice part about records being up graded younger people have great incentive youth few summers ago Open class times usually much worse Junior Senior times days vig orous competition about 17 years old Open class modeler patronized some kind doddering grandpa con test results bore out concept Open modeler tolerated hanger-on well meaning non-serious competitor way off current standards Un fortunately concept Open class modeler now has Junior Senior contest results prove true Except glider youthful arm can peg plane rafters indoor records dominated Open class over 19 modeler THNIRT earlier record trials have done much bring younger state art up realistic standards Lets keep up course always feel Old age treachery will beat youth skill time SAM Miami Indoor Aircraft Model Assoc plans continue annual unique meet weve already booked Northwood FNART Fourth Nimas Annual Record Trials will third weekend next June plan ahead model meet its hap pening type flying sounds interesting you might like try yourself see elsewhere issue information join National Indoor Model Airplane Society Summer over winter winds blow product review product review product review Gieseine injobler stunt guys asked now youve got itl CL Nobler exact dupli cation ex-world champion Bob Giesekes modified Nobler Bobs Nobler won four na tional championships four Walker trophies frequent member USA teams Allbalsa kit designed 35 engines has 50 span 510 sq area Weight 38-42 oz Kit uses Superform fuselage top reduce weight eliminate block carving Molded canopy molded adjustable lead-out guide tn-ads precise construction ease handling Hardware 3 nylon bellcrank lead-out wire silver-soldered control horns Top Flite Models Inc 1901 N Nar ragansett Ave Chicago IL 60639 product review product review product review October1978 99 Kraftsmanship kit processed AAMCO GOLD BALSAThis Trainer will blow apart hits ground GREATEST B/C "BASIC TRAINER Design & Kit ALL TIME Ask over 25000 satisfied builders H-RAYand dealers sold themSHALL WE SAY MORE Andrews Aircraft Model Co Inc US Ete 1& North St Topsfield Mass 01983 887-8541 Support AMA Price $3995 kit per doUar bar em all
Edition: Model Aviation - 1978/10
Page Numbers: 40, 98, 99
I PROMISED would write about throttles month have quite few ideas try out havent yet chance test goal has try find variety throttle schemes simple operate readily avail able through hobby shops simplest throttle suction sys tem using standard RC carburetor wide variety RC 40 60 engines available latter designs quite powerful disadvantage using suction system engine power will somewhat lower pressurized system wide-open intake great est power difference seen using suction carburetor designed size engine using because carburetors designed provide consistent performance over wide range conditions carbs have small throat areas fuel draw will relatively high Most engines can run quite successfully much larger carburetors Ive talked before about carburetor throat area Profile Carrier engines 35-40 size engine can function quite well carb throat area 30mm2 square millimeters about 50-80% larger carburetors supplied size engine fact about size carbu retor usually found 60 large Perry carbs example have throat areas 29 mm2 except Kraft 61 OPS 60 about 37 mm2 have used large Perry carb Fox 36 no problems rear intake en2ine should able use larger carbs because fuel tank can closer carb havent yet run tests 60-size Class II engines should able handle 55 mm2 carb trouble Perhaps carb large 62 mm2 would work hope because size 900 series Perry carburetors designed use pump secret success suction fuel system fuel tank Ive shown preference fuel tank designa modifica tion common uniflow tank George Cox uses chicken-hopper tank MO-i profile see photo good results tin nod nit nnao OR 40 Model Aviation Control Line. Navy Carrier Richard Perry George Cox won Profile event National Championships MO-i modified Charles Reeves design used flaps ailerons rudder Area 360 sq Sal Costellis profile version Sf 109T German carrier fighter modified Midwest kit large wingwithin 44 limit span improves slow flight capability Perry carburetors 40 engines have throat areas 1 mm br suction left 62 mm pump carburetor right Increased throat area can provide increased engine power Power George Coxs profile MO-i Paul Tune conversion OS 40 FSR Rev-Up 9/7-1/2 nylon prop fed chicken hopper tank HazelnutMBH-1 I CSD-1 I 22W ws o American Eagle catalog 25c I MODERNISTIC MODELS P0 BOX 6974 ALBUQ NM 87197 J should tire such machine very effec tive solution might take com bat match can almost guarantee instant cure such emotional state writer can ever pin Rich down submitting design feels truly competitive may able get set plans COPAs could utilized begin ners out However pointed out March 1978 issue Model Aviation Rich does use basically VooDoo type Half-A design recommending least 200 sq wing 18 degrees engine off set creates tricycle landing gear craft whole thing weighs about 8 9 ounces Rich enclosed unreproduceable sketch plan proposed Blazing 50 Half-A stunter should make SSF remember thats Serious Stunt Flier drool Blazing 50 features beautiful elliptical wing 50-inch span matching stabilator top view plane has lines Charley Mackeys svelte Starlight 1967 side view looks like Starship 2001 graceful fuselage trike gear wing will have about 415 sq total weight should about 16 oz Lets hope Rich can get transformed flying model could beautiful stunter Rich also has some other hints pass new Gb Bees definitely give around 1000 rpm increase Tee Dee air 21 about 222 grand some smoothness engine run sacrificed unavailable Testor 6 X 4 prop gives identical lap speeds Cox competition 6 X 3 prop doesnt tend overheat engine maneuvers sometimes case Magnum fuel Cox 6 X 3 competition prop subject fuel systems Rich says Tatone makes small pen bladders work very well Half-As pen bladder requires about 12 pounds start drops down about 6 pounds using 2 oz syringe bathroom scales measure pressure light weight low cost consistency simplicity extra power availability pressure system very desirable once system under stood especially good use smaller engines light aircraft such Half-A stunters Some concern has expressed over 008 lines used Half-A According Rich just need take care fragile things has problems people walking breaks unravelling procedure use untwisting lines use hand closest airplane separate lines wiping cloth other hand used twist hold tension lines between two hands avoid allowing kinks start have never gotten kink using procedure oil buildup lines prevented says Rich also uses what appears quadruped wrap ends lines wraps 1/2 inch down line clip wraps back clip loops 008 line around clip again wraps 1/4 inch down back After always uses epoxy other glue finish off tapered end good set unkinked lines should easily take 16 pounds pull test 008 lines should adequate winds up 25 mph present Half-A power levels Just stay safe side Rich recommends switch ing 012 lines winds above 20mph going 50 52 feet length Winston-Salem Control Line Champion ships Les McDonald won event held Raady-toFIy Foam RC Planes Available either MRC-Enya 15 MRC Mabuchi electric power system installed realistic planes assemble hour Wing spans 48 lengths 32 Trainer Hawk 15 engine factory installed fuel tank control rods horns Two-chan radio included controls nosewheel steering rudder elevator Third chan nel desired throttle Price $9800 Elec tra-Fli Trainer Electric power system place also horns rodsdesigned 2 chan Elec tric system consists motor CVR cutoff voltage regulator600 mah battery fast charg er operable cigarette lighter25 minutes used system Third channel can added control CVRs microswitch turns motor off flight con serving power gliding periods between powered flight CVR unit prevents overcharg ing allows battery operate radio servo motor Automatic cutoff prevent deep dis charge CVR monitors battery voltage cuts power motor before voltage drops too low always enough battery power glide back control Price $18995 Modal Rectifier Corp 2500 Woodbridge Ave Edison NJ 08817 product review product review product review June 17-18 flying new I-beam wing Stiletto new Stiletto 60 inches span 650 sq wing Weight 52 oz stabilizer 32 in span root chord inch thick Very short flaps used Les effort give better turning ability Norm Whittle finished second 4700 Les 4945 Third place went Bob Galle now living New Jer sey Claus Maikis competed way West Germany finished seventh after having some trouble plane Advanced PAMPA stunt won Vince Schnetzer Miami Florida Stiletto beat out Les best appearance points information stunt PAMPA write Wynn Paul 1640 Maywick Drive Lexington KY 40504 CL Carrier/Perry continued page 40 Bill Lee July 78 MA Don Jehlik June 78 MA gave good descriptions various types fuel tanks opera tions sure read columns close relative suction system reported operating quite successfully Arizona Mike DelPonte isusing Perry pump carburetor pump Class engine get boost tank pres sure help large carb Mike puts tank vent exhaust stack obviously works since Mike placed second Buck eye Arizona year 333 havent tried yet could turn out best thing since sliced bread Just careful unwanted fires ex haust stack next step up order complexity pump system two pumps readily available Perry Robart Robart SuperPumper MkII has maxi mum output three ounces per minute might satisfy some thirsty Class II engines Robarts High Volume Pumper should used higher flow rates required Perry 900 series carburetors pump systems have plunger changes mixture settings during verted flight upright engine instal lation located under screw adjacent fuel line connection dont need it can cause problems certain carburetor attitudes because centrifugal force Take plunger out least screw adjustment screw cant cause trouble Pump systems work harder adjust initially suction systems less critical tank position cost because pump primary disadvantage letter Pete Mazur HiLow-Landings newsletter mentioned use pump conjunction ex haust restrictor K&B Semco make boaters idea restrictor slows engine pump pro98 Model Aviation ATTENTION RC DEALERS Order large stock Kraft radios ServosKraft EnginesAir born unitsPlus accessories J KRAFT SOUTHWESTERN INC 5725 E Lancaster Ft worth TX 76112 a17-451-7537 Night 429-3a28 572-1452 product review product review product revrnA vides less fuel therefore get auto matic mixture adjustment tried very briefly test stand limited success can probably made work will require little effort lot luck subscribe Hi-Low-Landings newsletter miss ing out excellent Navy Carrier pub lication contains contest results Top Ten listings hints equipment used top competitors photos opportunity communicate rest Carrier community through letters pub lished sign up year send five dollars Ron Duly 1806 Karen Street Burbank CA 91504 Dick Perry 5016 ngelita Ave Dayton OH 45424 CL Speed/Hempel/Upton continued page 41 wall cleaned spiders out pipe showed everyone groove 19600 mph third place Lenny Waltemath Kenosha WI hoping psyche everyone out placing 200 mph flight early Sat am took eye off ship tapped down hard enough break stab tried get wrist pylon yoke Saturday night repairs evidently lacked proper alignment flown Sunday ship grooving well 19410 mph flight placed him fourth must make couple comments top four jet speed ships four different head setups L-H-H entry Super Burp MKII Langlois Pardue extended head intake diameter reduced 125 Marceneros Sidewinder large bore Hoyt Raven head reduced down epoxy putty 125 throat Davis just ran spiders out old stock Dyna head-powered Sidewinder Waltemath running large bore Raven Side winder L-H-H add benzene 50-50 fuel mixture get enough laps clocking 6 oz tank glad see Earl Witt AMA Sec-Treas down visit Said wanted see what AAAA bally hoo about flight didnt leave Saturday night able stay around help 160 people eat barbecue fried chicken order 200 people Dub Jett won chicken eating contest four helpings opportunity socialize talk other model ing fraternity would like express thanks Bill Pardue Contest Director United States Control Line Championships Event Directors Rickey Barrier Harold Nash John Bartley excellent job did making things move along smoothly Hope see yall next year Product Note Toms Custom Engines 1242 GardengateCir Garland TX 75043 214 271-8201 open limited busi ness again Chrome work K&B mods speciality Gene Hempel Tom Upton 301 N Yale Dr Garland TX 75042 N IMAS/Martin continued page 44 Senior Richard Whitten second Junior Mike Van Gorder third Junior Dave Lindley doesnt take Sherlock Holmes deduce Junior Senior indoor records easier ex ceed serious younger modeler Open records nice part about records being up graded younger people have great incentive youth few summers ago Open class times usually much worse Junior Senior times days vig orous competition about 17 years old Open class modeler patronized some kind doddering grandpa con test results bore out concept Open modeler tolerated hanger-on well meaning non-serious competitor way off current standards Un fortunately concept Open class modeler now has Junior Senior contest results prove true Except glider youthful arm can peg plane rafters indoor records dominated Open class over 19 modeler THNIRT earlier record trials have done much bring younger state art up realistic standards Lets keep up course always feel Old age treachery will beat youth skill time SAM Miami Indoor Aircraft Model Assoc plans continue annual unique meet weve already booked Northwood FNART Fourth Nimas Annual Record Trials will third weekend next June plan ahead model meet its hap pening type flying sounds interesting you might like try yourself see elsewhere issue information join National Indoor Model Airplane Society Summer over winter winds blow product review product review product review Gieseine injobler stunt guys asked now youve got itl CL Nobler exact dupli cation ex-world champion Bob Giesekes modified Nobler Bobs Nobler won four na tional championships four Walker trophies frequent member USA teams Allbalsa kit designed 35 engines has 50 span 510 sq area Weight 38-42 oz Kit uses Superform fuselage top reduce weight eliminate block carving Molded canopy molded adjustable lead-out guide tn-ads precise construction ease handling Hardware 3 nylon bellcrank lead-out wire silver-soldered control horns Top Flite Models Inc 1901 N Nar ragansett Ave Chicago IL 60639 product review product review product review October1978 99 Kraftsmanship kit processed AAMCO GOLD BALSAThis Trainer will blow apart hits ground GREATEST B/C "BASIC TRAINER Design & Kit ALL TIME Ask over 25000 satisfied builders H-RAYand dealers sold themSHALL WE SAY MORE Andrews Aircraft Model Co Inc US Ete 1& North St Topsfield Mass 01983 887-8541 Support AMA Price $3995 kit per doUar bar em all
Edition: Model Aviation - 1978/10
Page Numbers: 40, 98, 99
I PROMISED would write about throttles month have quite few ideas try out havent yet chance test goal has try find variety throttle schemes simple operate readily avail able through hobby shops simplest throttle suction sys tem using standard RC carburetor wide variety RC 40 60 engines available latter designs quite powerful disadvantage using suction system engine power will somewhat lower pressurized system wide-open intake great est power difference seen using suction carburetor designed size engine using because carburetors designed provide consistent performance over wide range conditions carbs have small throat areas fuel draw will relatively high Most engines can run quite successfully much larger carburetors Ive talked before about carburetor throat area Profile Carrier engines 35-40 size engine can function quite well carb throat area 30mm2 square millimeters about 50-80% larger carburetors supplied size engine fact about size carbu retor usually found 60 large Perry carbs example have throat areas 29 mm2 except Kraft 61 OPS 60 about 37 mm2 have used large Perry carb Fox 36 no problems rear intake en2ine should able use larger carbs because fuel tank can closer carb havent yet run tests 60-size Class II engines should able handle 55 mm2 carb trouble Perhaps carb large 62 mm2 would work hope because size 900 series Perry carburetors designed use pump secret success suction fuel system fuel tank Ive shown preference fuel tank designa modifica tion common uniflow tank George Cox uses chicken-hopper tank MO-i profile see photo good results tin nod nit nnao OR 40 Model Aviation Control Line. Navy Carrier Richard Perry George Cox won Profile event National Championships MO-i modified Charles Reeves design used flaps ailerons rudder Area 360 sq Sal Costellis profile version Sf 109T German carrier fighter modified Midwest kit large wingwithin 44 limit span improves slow flight capability Perry carburetors 40 engines have throat areas 1 mm br suction left 62 mm pump carburetor right Increased throat area can provide increased engine power Power George Coxs profile MO-i Paul Tune conversion OS 40 FSR Rev-Up 9/7-1/2 nylon prop fed chicken hopper tank HazelnutMBH-1 I CSD-1 I 22W ws o American Eagle catalog 25c I MODERNISTIC MODELS P0 BOX 6974 ALBUQ NM 87197 J should tire such machine very effec tive solution might take com bat match can almost guarantee instant cure such emotional state writer can ever pin Rich down submitting design feels truly competitive may able get set plans COPAs could utilized begin ners out However pointed out March 1978 issue Model Aviation Rich does use basically VooDoo type Half-A design recommending least 200 sq wing 18 degrees engine off set creates tricycle landing gear craft whole thing weighs about 8 9 ounces Rich enclosed unreproduceable sketch plan proposed Blazing 50 Half-A stunter should make SSF remember thats Serious Stunt Flier drool Blazing 50 features beautiful elliptical wing 50-inch span matching stabilator top view plane has lines Charley Mackeys svelte Starlight 1967 side view looks like Starship 2001 graceful fuselage trike gear wing will have about 415 sq total weight should about 16 oz Lets hope Rich can get transformed flying model could beautiful stunter Rich also has some other hints pass new Gb Bees definitely give around 1000 rpm increase Tee Dee air 21 about 222 grand some smoothness engine run sacrificed unavailable Testor 6 X 4 prop gives identical lap speeds Cox competition 6 X 3 prop doesnt tend overheat engine maneuvers sometimes case Magnum fuel Cox 6 X 3 competition prop subject fuel systems Rich says Tatone makes small pen bladders work very well Half-As pen bladder requires about 12 pounds start drops down about 6 pounds using 2 oz syringe bathroom scales measure pressure light weight low cost consistency simplicity extra power availability pressure system very desirable once system under stood especially good use smaller engines light aircraft such Half-A stunters Some concern has expressed over 008 lines used Half-A According Rich just need take care fragile things has problems people walking breaks unravelling procedure use untwisting lines use hand closest airplane separate lines wiping cloth other hand used twist hold tension lines between two hands avoid allowing kinks start have never gotten kink using procedure oil buildup lines prevented says Rich also uses what appears quadruped wrap ends lines wraps 1/2 inch down line clip wraps back clip loops 008 line around clip again wraps 1/4 inch down back After always uses epoxy other glue finish off tapered end good set unkinked lines should easily take 16 pounds pull test 008 lines should adequate winds up 25 mph present Half-A power levels Just stay safe side Rich recommends switch ing 012 lines winds above 20mph going 50 52 feet length Winston-Salem Control Line Champion ships Les McDonald won event held Raady-toFIy Foam RC Planes Available either MRC-Enya 15 MRC Mabuchi electric power system installed realistic planes assemble hour Wing spans 48 lengths 32 Trainer Hawk 15 engine factory installed fuel tank control rods horns Two-chan radio included controls nosewheel steering rudder elevator Third chan nel desired throttle Price $9800 Elec tra-Fli Trainer Electric power system place also horns rodsdesigned 2 chan Elec tric system consists motor CVR cutoff voltage regulator600 mah battery fast charg er operable cigarette lighter25 minutes used system Third channel can added control CVRs microswitch turns motor off flight con serving power gliding periods between powered flight CVR unit prevents overcharg ing allows battery operate radio servo motor Automatic cutoff prevent deep dis charge CVR monitors battery voltage cuts power motor before voltage drops too low always enough battery power glide back control Price $18995 Modal Rectifier Corp 2500 Woodbridge Ave Edison NJ 08817 product review product review product review June 17-18 flying new I-beam wing Stiletto new Stiletto 60 inches span 650 sq wing Weight 52 oz stabilizer 32 in span root chord inch thick Very short flaps used Les effort give better turning ability Norm Whittle finished second 4700 Les 4945 Third place went Bob Galle now living New Jer sey Claus Maikis competed way West Germany finished seventh after having some trouble plane Advanced PAMPA stunt won Vince Schnetzer Miami Florida Stiletto beat out Les best appearance points information stunt PAMPA write Wynn Paul 1640 Maywick Drive Lexington KY 40504 CL Carrier/Perry continued page 40 Bill Lee July 78 MA Don Jehlik June 78 MA gave good descriptions various types fuel tanks opera tions sure read columns close relative suction system reported operating quite successfully Arizona Mike DelPonte isusing Perry pump carburetor pump Class engine get boost tank pres sure help large carb Mike puts tank vent exhaust stack obviously works since Mike placed second Buck eye Arizona year 333 havent tried yet could turn out best thing since sliced bread Just careful unwanted fires ex haust stack next step up order complexity pump system two pumps readily available Perry Robart Robart SuperPumper MkII has maxi mum output three ounces per minute might satisfy some thirsty Class II engines Robarts High Volume Pumper should used higher flow rates required Perry 900 series carburetors pump systems have plunger changes mixture settings during verted flight upright engine instal lation located under screw adjacent fuel line connection dont need it can cause problems certain carburetor attitudes because centrifugal force Take plunger out least screw adjustment screw cant cause trouble Pump systems work harder adjust initially suction systems less critical tank position cost because pump primary disadvantage letter Pete Mazur HiLow-Landings newsletter mentioned use pump conjunction ex haust restrictor K&B Semco make boaters idea restrictor slows engine pump pro98 Model Aviation ATTENTION RC DEALERS Order large stock Kraft radios ServosKraft EnginesAir born unitsPlus accessories J KRAFT SOUTHWESTERN INC 5725 E Lancaster Ft worth TX 76112 a17-451-7537 Night 429-3a28 572-1452 product review product review product revrnA vides less fuel therefore get auto matic mixture adjustment tried very briefly test stand limited success can probably made work will require little effort lot luck subscribe Hi-Low-Landings newsletter miss ing out excellent Navy Carrier pub lication contains contest results Top Ten listings hints equipment used top competitors photos opportunity communicate rest Carrier community through letters pub lished sign up year send five dollars Ron Duly 1806 Karen Street Burbank CA 91504 Dick Perry 5016 ngelita Ave Dayton OH 45424 CL Speed/Hempel/Upton continued page 41 wall cleaned spiders out pipe showed everyone groove 19600 mph third place Lenny Waltemath Kenosha WI hoping psyche everyone out placing 200 mph flight early Sat am took eye off ship tapped down hard enough break stab tried get wrist pylon yoke Saturday night repairs evidently lacked proper alignment flown Sunday ship grooving well 19410 mph flight placed him fourth must make couple comments top four jet speed ships four different head setups L-H-H entry Super Burp MKII Langlois Pardue extended head intake diameter reduced 125 Marceneros Sidewinder large bore Hoyt Raven head reduced down epoxy putty 125 throat Davis just ran spiders out old stock Dyna head-powered Sidewinder Waltemath running large bore Raven Side winder L-H-H add benzene 50-50 fuel mixture get enough laps clocking 6 oz tank glad see Earl Witt AMA Sec-Treas down visit Said wanted see what AAAA bally hoo about flight didnt leave Saturday night able stay around help 160 people eat barbecue fried chicken order 200 people Dub Jett won chicken eating contest four helpings opportunity socialize talk other model ing fraternity would like express thanks Bill Pardue Contest Director United States Control Line Championships Event Directors Rickey Barrier Harold Nash John Bartley excellent job did making things move along smoothly Hope see yall next year Product Note Toms Custom Engines 1242 GardengateCir Garland TX 75043 214 271-8201 open limited busi ness again Chrome work K&B mods speciality Gene Hempel Tom Upton 301 N Yale Dr Garland TX 75042 N IMAS/Martin continued page 44 Senior Richard Whitten second Junior Mike Van Gorder third Junior Dave Lindley doesnt take Sherlock Holmes deduce Junior Senior indoor records easier ex ceed serious younger modeler Open records nice part about records being up graded younger people have great incentive youth few summers ago Open class times usually much worse Junior Senior times days vig orous competition about 17 years old Open class modeler patronized some kind doddering grandpa con test results bore out concept Open modeler tolerated hanger-on well meaning non-serious competitor way off current standards Un fortunately concept Open class modeler now has Junior Senior contest results prove true Except glider youthful arm can peg plane rafters indoor records dominated Open class over 19 modeler THNIRT earlier record trials have done much bring younger state art up realistic standards Lets keep up course always feel Old age treachery will beat youth skill time SAM Miami Indoor Aircraft Model Assoc plans continue annual unique meet weve already booked Northwood FNART Fourth Nimas Annual Record Trials will third weekend next June plan ahead model meet its hap pening type flying sounds interesting you might like try yourself see elsewhere issue information join National Indoor Model Airplane Society Summer over winter winds blow product review product review product review Gieseine injobler stunt guys asked now youve got itl CL Nobler exact dupli cation ex-world champion Bob Giesekes modified Nobler Bobs Nobler won four na tional championships four Walker trophies frequent member USA teams Allbalsa kit designed 35 engines has 50 span 510 sq area Weight 38-42 oz Kit uses Superform fuselage top reduce weight eliminate block carving Molded canopy molded adjustable lead-out guide tn-ads precise construction ease handling Hardware 3 nylon bellcrank lead-out wire silver-soldered control horns Top Flite Models Inc 1901 N Nar ragansett Ave Chicago IL 60639 product review product review product review October1978 99 Kraftsmanship kit processed AAMCO GOLD BALSAThis Trainer will blow apart hits ground GREATEST B/C "BASIC TRAINER Design & Kit ALL TIME Ask over 25000 satisfied builders H-RAYand dealers sold themSHALL WE SAY MORE Andrews Aircraft Model Co Inc US Ete 1& North St Topsfield Mass 01983 887-8541 Support AMA Price $3995 kit per doUar bar em all