7211 OSE fair assume Record Trial time place set records Such being case should come no surprise grand total nine new Indoor Category II records set during June 2nd through 5th bash Northwood Institutes 96-foot Atrium West Baden Indiana scene Second Annual Na tional Indoor Model Airplane Societys Record Trials combined FAI door Team Qualification Contest North- South Central Regions great time should have living easy meals good accommodation rates inexpensive flying high quality Nine new marks set during four-day session fabulous Northwood Institute Atrium occasion 2nd Annual NIMAS Record Trials combined FAI Team QualificationE Ed Whitten West Baden fast becoming Mecca Category II flying rate going entire list Category II records will some day have set thereplus maybe Category helicopter record set dining room second year MIAMA club Florida sponsored event pewter mugs awarded broke approached existing records highest percentage Doc Martin hand see everything moved smoothly during first two days Ed Whitten took over CD FAI flying Top man Mike Van Gorder es tablished new Junior Pennyplane record 9314 gave him percentage index 20930 Novice Pennyplane included eligible event Continued page 82 following top eight places 90% better existing records NIMAS Index flying first two days 1 Mike Van Gorder 2 Richard Whitten 3 Richard Whitten 4 Bucky Servaites 5 Richard Doig 6 Stan Chilton 7 Ron Ganser 8 Robert Larsh Jr Sr Sr Op COp Cop COp COp Pennyplane Pennyplane Stick ROG HL Stick Stick ROG Paper Stick Cabin ROG HL Glider 20930% 11869% 10565% 10469% 9970% 9600% 9556% 9075% 9314 10039 11090 35085 15494 23140 22166 2096 Manhattan results 1 Jim Miller8155Miller Special42 grams 2 Dick Obarski7090Not Really40 3 Robert Larsh6150Trivaites Special52 4 Ron Williams *5501Yelloise43 5 Walt Van Gorder5174Jezebel51 6 Dick Hardcastle4302Uptown Manhattan40 * proxied Richard Whitten October1977 35 Top man NIMAS Record Trials Mike Van Gorder holding Meuser designed Pen nyplane pics author taken Trials Buck Servaites poses official photo world record model Its 38085 flight killed 2 birds 1 stonean PAl Category Ill record AMA Category II record Dick Oberski demonstrates tail boom attaches 2nd place Manhattan model Dick has active flier since 30s OUT-PERFORMS ALL OTHERS AT THE 1976 NATIONALS 1st AC Mastert Class 1st AC Advanced 1st AC Novice 1st RC Sport Scale 1st Formula Pylon 1st Quarter Midget Pylon 1st CL Stunt Open 1st CL Stunt Senior 1st CL Stunt Junior 1st CL Combat Op & Sr 1st CL Slow Comb Op & Sr 1st CL Carrier II Op Jr Sr 1st CL Carrier Jr & Sr 1st CL Class 0 Speed Open 1st CL Class C Speed Jr & Sr 1st CL Claw B Speed Op & Sr 1st CL Cl Speed Op Sr Jr 1st CL Formula 40 Open 1st CL Class B Proto Jr HIGH PERFORMANCE * COMPETITION PROVEN * THIN RIGID BLADES OF HARD MAPLE WOOD * SUPERBIY FINISHED COMPLETELY FUEL PROOF SERIES 400 B FOR SPEED NG ADVANCED DESIGN NO 1 IN PYLON RACING LEADING SPEED RECORD HOLDER OP ALL TIMES RC PYLON RACING DIA PITCHPRICE 5%354129 755h6149 7SN 5hN SN149 8% 65657 757%189 9857 757%189 CONTROL LINE SPEED & RACING DIAPITCHPRICE 4%657129 4%55%129 6788%149 77510511 169 889189 89N 95N189 85775189 91213219 N NARROW recessed flush /s X a strips fuselage sides Cowl attached 4-40 bolt through C6 C7 small wood Screw through D4 C8 point seal raw edges fuselage gummed paper tape Make 1/tn wire main landing gear add balsa fairings sand shape Make tail skid form 1/16 wire Attach support wrapping thread glue place Make four outboard wing struts will notice slightly longer inboard struts Finishing Now time paint trim model before final assembly color scheme silver red same used Western Air Ex press 1926 mail routes wings empennage nose block removable cowl struts gear fairings silver fuselage red Lettering trim made black silver Monokote Use split fuel tubing cockpit combing paint black Make windscreen thin plastic glue fuselage Final Assembly Glue bottom wing fuse lage Glue outboard struts posi tion bottom wing make sure outboard wing struts stay aligned slip top wing over struts gluing struts drying place bottom wing dry turn airplane upside down glue struts place top wing Make fillets glue around strut enters wing surface increased strength Glue stabilizer place attach nylon control horn hook up pushrod Glue fin place Attach main landing gear gear clips wood screws Add 3-in-diameter vintage wheels Bolt motor motor mount attach fuel line throttle linkage 10-6 pro peller Bolt removable decking Make sit ply line guide attach left out board struts 4-40 bolts Pass leadout wires through line guide tie off ship now complete sure bal ance airplane shown plans R ecords/Whitten continued page 35 contest since Mikes Pennyplane Novice version Bob Meusers excellent No Nonsence design also set new Junior Novice Pennyplane record well Two records Richard Whitten repeated double win last year time setting new Senior Stick ROG Pennyplane times made four new records outstanding record established course Bucky Servaites superb 3508 5 flight established new AMA HL Stick time Whats same flight borke old FAI World Unlimited record FAI Category III sites Bucky really gunning came fully prepared necessary sanction papers such world record attempt model FAI design weighed less minimum gram FAI competition class requirement Nice going Bucky congratulations like see world records side pond Six records contests other typestoo Easy B perhaps hotly contested Stan Chiltons time must surely about tops Category II Take look best four Stan Chilton Bob Mullins Dick Obarski Al Rohrbaugh 16426 15340 14580 14150 Manhattan Formula very popular times much improved over last year Flying same MIAMA rules first five places higher Servaites last years winning West Baden time 4528 Cincinnatis Jim Miller took top honors 8145 establishing new Category II contest high time unofficial cabin event models built close minimum 40 airframe weight allowance except two 5 grams requirement recent Indianapolis contest should noted product review product review product review Super Pumper Compatible engines mountings tank locations pump comes adjusted put out 15 psi ounce fuel per minutedrops 1/8 /a psi idle depending engines adjust ment affects pressure low end high rpm because carburetor designed handle high pressure both idle wide openprolonged idle possible no hesitation response throttle Unit no larger filter need pumper course insure steady engine run under flight conditionsfrom full tank emptywithout variations such running rich lean breaks power hesitant re sponse throttle changes etc engine does require tapping pressure feed no problem well worth super ior engine performance Robart Mfg Co PO Box 122 Wheaton IL 60187 product review product review product review 82 Model Aviation NEWS FLASH Bob Smith Chatsworth CA set new World Speed Record June 19 Pylon mula 11125 RevUp 83h-6% new Pylon Rac ing prop 1st PP Class B Open 1st PP Class C Open SPECIAL PRO SERIES 2 FOR EC-FREE FUGHT CONTROL LINE DIAPITCHPRICE 5%3489 63489 733%4119 835458129 94586% 77%139 10467149 106W 8W149 10SEW159 114677/ 7% 758159 11SEW169 11%67189 126179 12SW179 1356219 145 6249 1556309 164/,6389 W WIDE BLADE EW EXTRA WIDE Manhattan fans wanted keep rules possible exception some preferring 5 gram minimum allowance wood wing stab bracing After second days flying came banquet Dishevelled modelers showed up strangely washed wearing crisp clean clothes nice change also nice see lovely wives lady friends present As last year banquet food excellent time given thank lucky stars have such good place fly relax plus announcement winners other little speeches third day flying turned over first three FAI qualifying rounds didnt mean records attempts end Ron Ganser come within whisker making new Cabin ROG record hung up two ships trying finally put together posted magnificent 25199 Hes after Cabin record long time Seven records came flying scale time lasted up until midnight Jim Miller put up top Peanut ROG times 1176 Piper J-3 1164 Itoh N-62 Eaglet Jim Pulley next 1028 flying Lacey M-l0 AMA Flying Scale ROG again Jim Miller time flying 26 version Itoh Eaglet 334 seconds same time Jim Richmond taking chances flying FAI Cat Walker record managed 3147 3105 worsening air conditions near floor kept him breaking record Jim wasnt denied however third official following day during FAI Qualifications new time 3240 also gave him top points Qualifica tions among 13 FAI fliers Actually flight set two AMA records being FAI gram models AMA Category II sites other FAI Category III sites So count em e new records West Baden really great place fly enjoyed minute raising Jolly Green Giants banner beginning its lowering end Ray Semmens Director Outside Activities Northwood Institute genial host tour duty coin cidentally came end right mid dle stay Much will miss him think new Director Paul Stroud will good friend too fact Pauls effort brought TV cameramen Louisvilles Channel 13 took some beautiful flying shots Stan Chilton giving commentary film has shown both locally National hook-up What can say excep tionally good four days flying wonderful vacation well worth two days driving way New York r CONTROL HOOKUP ACCESSORIES DU-BRO 20 FLEX-CABLE MOTOR CONTROL Provides ultimate control cable assembly HighlyBOATS.CARS control horn L flexible free running adjustable STRIP AILERONiF DU-BRO KWIK-LINK HORN WIREThetriedandtrue CONNECTORS Ispring steel I4- -any control1 shook-upsAlinkage Simplify yourHKwik-Link Ideal JLNo.75C No 10379cjI1I2each NY-STEEL KWIK-ROD ASSEMBLY No shrink no stretch free running fully adjustable control horn Strong simple easy install Hot wet cold days wont affect trim setting Complete 31 assembly Kwik-LinksNo 102$149 E THREADED [ COUPLERS cat No 212 new threaded couplers now designed fit perfectly Kwik Link II rods flex cable 5 $1 00 NYLON CONTROL HORNS Four throw adjust ment positions Set contains left right threading nut plates horn two selfand four screws NEW E-Z CONNECTORS WE HAVE INCLUDED IN EVERY PACKAGE OF SNAP EZ CONNECTORS 2 OF OUR NEW NYLON NEWS StillSNAP-ONS ESPECIALLY MADE TOON TIGHT ON ANY SIZE CONTROL ARM THESE NAP-ONS CAN SAFELY BE USED OVER ANDOVER AGAIN FOR THOSE OF YOU WHOOr 98C Pr STILL PREFER PERMANENT INSTALLATION PEEN PEEN ON THE WASHER AS YOUR CHOICECat No121ON CONTROL OVER-RIDE SERVO SAVER adjustable spring action assembly protects servo shock stalling Excellent throttle rudder nosewheel hookups Both light heavy duty springs included linkage application No 12098c SMALL SERVO MOUNTINGSMALL SERVO HARDWARENATURAL 60 pieces enough for---RUBBERGROMMETS five servos 20- Sheet Metal Screws20 pieces 20-Fibre Washers 0- Spacers No115 No 114$12059c DU-BRO PRODUCTS" INCORPORATED Bonner Road Wauconda Illinois 60084 U SA October1977 83 City Thanks Northwood ks MIAMA anks NIMAS See again next year Ed Whitten Box 176 Wall Street Sta tionNYC NY JOOOS FF Scale/Wischers continued page 21 materials easily obtainable likely found modelers work shops Requirements two hardwood blocks cabinet hinge hard piece metal such lathe cutting tool two scraps steel two pins made short lengths music wire wood screws hinge example shown photos hardwood blocks cut -birch 3 wide 1 longer aluminum cowl length slot cut across width block 1 its end fit lathe tool tightly should press fit block should set flush surface pressed place lathe tool used because extremely hard material will wear along its cutting edge tool available piece steel such 3/8-sq key stock may substituted since likely wear out during few operations made producing single louvered cowl notch cut lower wood block adjacent steel tool notch should approximate external shape louver punched can made X-acto knife louvers cut sequence form continu ous row second notch needed toward end block notch can cut across full width block shown photo Its spacing first notch determines exact spacing tween louvers row row louvers cut relief notch must also made along length block avoid flattening previous row completes die half tool punch cuts through alumi num filed strip steel ex act shape louver punch sweat soldered l/16-thick steel back up plate assembly will cemented pinned upper block later steps two blocks now hinged together end opposite notches drilling screw holes hinge blocks should spaced apart same amount thickness back-up plate punch now laid notch loosely hinged blocks brought together alignment Mark approxi mate location back-up plate upper block spread strong contact cement such Walthers Goo back-up plate marked off area wood Allow ten minutes ce ment dry punch set posi tion its notch bring blocks together R/C Buyers Guide new third edition just released Includes listings 2000 RC products Aircraft boats cars radio sys tems accessory items pictured de scribed 200 manufacturers represented Included descriptions new products displayed years trade shows Listings include important information retail prices Suggested retail price $425 hobby stores $500 postpaid Boyn ton & Associates Clifton House Clifton VA 22024 product review product review product review cemented areas make contact tool closed perfect alignment should result between punch die Dowel back-up plate upper block short lengths 3/32-dia music wire prevent possible shifting Test operation scrap alumi num sharp blow fist hammer will drive punch through alumi num forming louver evidence tearing notching along cut edge usually indicates too much clearance tween punch die clearance easily adjustable means paper shims inserted between lower hinge leaf block case stubbing due inter ference between punch die shims would inserted opposite side hinge Shims will very likely re quired because low quality fit pin cabinet hinge heavy paper about 003 thick provides useful incremental changes fine tuning possible thinner paper may sound like large project able produce tool help table saw slightly hour single cowl side punched 48 perfectly spaced uniform louvers produced 30 minutes Alter nate methods such fake glued-on strips would have taken much longer doubt ful quality end result An obvious benefit louvers functional prototype total area 150 ventilation slots sufficient cool 60 engine Douglas Mailplane properly cool engine enclosed cowl baffle arrangement control direct flow air through cylinder fins absolute necessity can made aluminum plywood baffle should fit cylinder closely force incoming air flow past through fins effect desired similar used full-size planes opening entering air larger baffle opening around engine creates pressure cowl effec tively forces air past fins velocity greater slipstream desirable air outlet behind en gine have area larger inlet least larger baffle bypass area case louvered cowl total area louvers keeping mind swarm small louvers may somewhat lacking efficiency com pared larger smoother openings thin aluminum used baf fle needs braced cannot deflect due pressure Deflection will spoil effectiveness permit incoming air find path lesser resistance rather flowing through fins overheated engine sagged during flight found reason After bracing baffle immediate improvement Mounting cowled engine too close firewall causes damming effect obstructing air flow can result 84 Model Aviation product review product review product review
Edition: Model Aviation - 1977/10
Page Numbers: 35, 82, 83, 84
7211 OSE fair assume Record Trial time place set records Such being case should come no surprise grand total nine new Indoor Category II records set during June 2nd through 5th bash Northwood Institutes 96-foot Atrium West Baden Indiana scene Second Annual Na tional Indoor Model Airplane Societys Record Trials combined FAI door Team Qualification Contest North- South Central Regions great time should have living easy meals good accommodation rates inexpensive flying high quality Nine new marks set during four-day session fabulous Northwood Institute Atrium occasion 2nd Annual NIMAS Record Trials combined FAI Team QualificationE Ed Whitten West Baden fast becoming Mecca Category II flying rate going entire list Category II records will some day have set thereplus maybe Category helicopter record set dining room second year MIAMA club Florida sponsored event pewter mugs awarded broke approached existing records highest percentage Doc Martin hand see everything moved smoothly during first two days Ed Whitten took over CD FAI flying Top man Mike Van Gorder es tablished new Junior Pennyplane record 9314 gave him percentage index 20930 Novice Pennyplane included eligible event Continued page 82 following top eight places 90% better existing records NIMAS Index flying first two days 1 Mike Van Gorder 2 Richard Whitten 3 Richard Whitten 4 Bucky Servaites 5 Richard Doig 6 Stan Chilton 7 Ron Ganser 8 Robert Larsh Jr Sr Sr Op COp Cop COp COp Pennyplane Pennyplane Stick ROG HL Stick Stick ROG Paper Stick Cabin ROG HL Glider 20930% 11869% 10565% 10469% 9970% 9600% 9556% 9075% 9314 10039 11090 35085 15494 23140 22166 2096 Manhattan results 1 Jim Miller8155Miller Special42 grams 2 Dick Obarski7090Not Really40 3 Robert Larsh6150Trivaites Special52 4 Ron Williams *5501Yelloise43 5 Walt Van Gorder5174Jezebel51 6 Dick Hardcastle4302Uptown Manhattan40 * proxied Richard Whitten October1977 35 Top man NIMAS Record Trials Mike Van Gorder holding Meuser designed Pen nyplane pics author taken Trials Buck Servaites poses official photo world record model Its 38085 flight killed 2 birds 1 stonean PAl Category Ill record AMA Category II record Dick Oberski demonstrates tail boom attaches 2nd place Manhattan model Dick has active flier since 30s OUT-PERFORMS ALL OTHERS AT THE 1976 NATIONALS 1st AC Mastert Class 1st AC Advanced 1st AC Novice 1st RC Sport Scale 1st Formula Pylon 1st Quarter Midget Pylon 1st CL Stunt Open 1st CL Stunt Senior 1st CL Stunt Junior 1st CL Combat Op & Sr 1st CL Slow Comb Op & Sr 1st CL Carrier II Op Jr Sr 1st CL Carrier Jr & Sr 1st CL Class 0 Speed Open 1st CL Class C Speed Jr & Sr 1st CL Claw B Speed Op & Sr 1st CL Cl Speed Op Sr Jr 1st CL Formula 40 Open 1st CL Class B Proto Jr HIGH PERFORMANCE * COMPETITION PROVEN * THIN RIGID BLADES OF HARD MAPLE WOOD * SUPERBIY FINISHED COMPLETELY FUEL PROOF SERIES 400 B FOR SPEED NG ADVANCED DESIGN NO 1 IN PYLON RACING LEADING SPEED RECORD HOLDER OP ALL TIMES RC PYLON RACING DIA PITCHPRICE 5%354129 755h6149 7SN 5hN SN149 8% 65657 757%189 9857 757%189 CONTROL LINE SPEED & RACING DIAPITCHPRICE 4%657129 4%55%129 6788%149 77510511 169 889189 89N 95N189 85775189 91213219 N NARROW recessed flush /s X a strips fuselage sides Cowl attached 4-40 bolt through C6 C7 small wood Screw through D4 C8 point seal raw edges fuselage gummed paper tape Make 1/tn wire main landing gear add balsa fairings sand shape Make tail skid form 1/16 wire Attach support wrapping thread glue place Make four outboard wing struts will notice slightly longer inboard struts Finishing Now time paint trim model before final assembly color scheme silver red same used Western Air Ex press 1926 mail routes wings empennage nose block removable cowl struts gear fairings silver fuselage red Lettering trim made black silver Monokote Use split fuel tubing cockpit combing paint black Make windscreen thin plastic glue fuselage Final Assembly Glue bottom wing fuse lage Glue outboard struts posi tion bottom wing make sure outboard wing struts stay aligned slip top wing over struts gluing struts drying place bottom wing dry turn airplane upside down glue struts place top wing Make fillets glue around strut enters wing surface increased strength Glue stabilizer place attach nylon control horn hook up pushrod Glue fin place Attach main landing gear gear clips wood screws Add 3-in-diameter vintage wheels Bolt motor motor mount attach fuel line throttle linkage 10-6 pro peller Bolt removable decking Make sit ply line guide attach left out board struts 4-40 bolts Pass leadout wires through line guide tie off ship now complete sure bal ance airplane shown plans R ecords/Whitten continued page 35 contest since Mikes Pennyplane Novice version Bob Meusers excellent No Nonsence design also set new Junior Novice Pennyplane record well Two records Richard Whitten repeated double win last year time setting new Senior Stick ROG Pennyplane times made four new records outstanding record established course Bucky Servaites superb 3508 5 flight established new AMA HL Stick time Whats same flight borke old FAI World Unlimited record FAI Category III sites Bucky really gunning came fully prepared necessary sanction papers such world record attempt model FAI design weighed less minimum gram FAI competition class requirement Nice going Bucky congratulations like see world records side pond Six records contests other typestoo Easy B perhaps hotly contested Stan Chiltons time must surely about tops Category II Take look best four Stan Chilton Bob Mullins Dick Obarski Al Rohrbaugh 16426 15340 14580 14150 Manhattan Formula very popular times much improved over last year Flying same MIAMA rules first five places higher Servaites last years winning West Baden time 4528 Cincinnatis Jim Miller took top honors 8145 establishing new Category II contest high time unofficial cabin event models built close minimum 40 airframe weight allowance except two 5 grams requirement recent Indianapolis contest should noted product review product review product review Super Pumper Compatible engines mountings tank locations pump comes adjusted put out 15 psi ounce fuel per minutedrops 1/8 /a psi idle depending engines adjust ment affects pressure low end high rpm because carburetor designed handle high pressure both idle wide openprolonged idle possible no hesitation response throttle Unit no larger filter need pumper course insure steady engine run under flight conditionsfrom full tank emptywithout variations such running rich lean breaks power hesitant re sponse throttle changes etc engine does require tapping pressure feed no problem well worth super ior engine performance Robart Mfg Co PO Box 122 Wheaton IL 60187 product review product review product review 82 Model Aviation NEWS FLASH Bob Smith Chatsworth CA set new World Speed Record June 19 Pylon mula 11125 RevUp 83h-6% new Pylon Rac ing prop 1st PP Class B Open 1st PP Class C Open SPECIAL PRO SERIES 2 FOR EC-FREE FUGHT CONTROL LINE DIAPITCHPRICE 5%3489 63489 733%4119 835458129 94586% 77%139 10467149 106W 8W149 10SEW159 114677/ 7% 758159 11SEW169 11%67189 126179 12SW179 1356219 145 6249 1556309 164/,6389 W WIDE BLADE EW EXTRA WIDE Manhattan fans wanted keep rules possible exception some preferring 5 gram minimum allowance wood wing stab bracing After second days flying came banquet Dishevelled modelers showed up strangely washed wearing crisp clean clothes nice change also nice see lovely wives lady friends present As last year banquet food excellent time given thank lucky stars have such good place fly relax plus announcement winners other little speeches third day flying turned over first three FAI qualifying rounds didnt mean records attempts end Ron Ganser come within whisker making new Cabin ROG record hung up two ships trying finally put together posted magnificent 25199 Hes after Cabin record long time Seven records came flying scale time lasted up until midnight Jim Miller put up top Peanut ROG times 1176 Piper J-3 1164 Itoh N-62 Eaglet Jim Pulley next 1028 flying Lacey M-l0 AMA Flying Scale ROG again Jim Miller time flying 26 version Itoh Eaglet 334 seconds same time Jim Richmond taking chances flying FAI Cat Walker record managed 3147 3105 worsening air conditions near floor kept him breaking record Jim wasnt denied however third official following day during FAI Qualifications new time 3240 also gave him top points Qualifica tions among 13 FAI fliers Actually flight set two AMA records being FAI gram models AMA Category II sites other FAI Category III sites So count em e new records West Baden really great place fly enjoyed minute raising Jolly Green Giants banner beginning its lowering end Ray Semmens Director Outside Activities Northwood Institute genial host tour duty coin cidentally came end right mid dle stay Much will miss him think new Director Paul Stroud will good friend too fact Pauls effort brought TV cameramen Louisvilles Channel 13 took some beautiful flying shots Stan Chilton giving commentary film has shown both locally National hook-up What can say excep tionally good four days flying wonderful vacation well worth two days driving way New York r CONTROL HOOKUP ACCESSORIES DU-BRO 20 FLEX-CABLE MOTOR CONTROL Provides ultimate control cable assembly HighlyBOATS.CARS control horn L flexible free running adjustable STRIP AILERONiF DU-BRO KWIK-LINK HORN WIREThetriedandtrue CONNECTORS Ispring steel I4- -any control1 shook-upsAlinkage Simplify yourHKwik-Link Ideal JLNo.75C No 10379cjI1I2each NY-STEEL KWIK-ROD ASSEMBLY No shrink no stretch free running fully adjustable control horn Strong simple easy install Hot wet cold days wont affect trim setting Complete 31 assembly Kwik-LinksNo 102$149 E THREADED [ COUPLERS cat No 212 new threaded couplers now designed fit perfectly Kwik Link II rods flex cable 5 $1 00 NYLON CONTROL HORNS Four throw adjust ment positions Set contains left right threading nut plates horn two selfand four screws NEW E-Z CONNECTORS WE HAVE INCLUDED IN EVERY PACKAGE OF SNAP EZ CONNECTORS 2 OF OUR NEW NYLON NEWS StillSNAP-ONS ESPECIALLY MADE TOON TIGHT ON ANY SIZE CONTROL ARM THESE NAP-ONS CAN SAFELY BE USED OVER ANDOVER AGAIN FOR THOSE OF YOU WHOOr 98C Pr STILL PREFER PERMANENT INSTALLATION PEEN PEEN ON THE WASHER AS YOUR CHOICECat No121ON CONTROL OVER-RIDE SERVO SAVER adjustable spring action assembly protects servo shock stalling Excellent throttle rudder nosewheel hookups Both light heavy duty springs included linkage application No 12098c SMALL SERVO MOUNTINGSMALL SERVO HARDWARENATURAL 60 pieces enough for---RUBBERGROMMETS five servos 20- Sheet Metal Screws20 pieces 20-Fibre Washers 0- Spacers No115 No 114$12059c DU-BRO PRODUCTS" INCORPORATED Bonner Road Wauconda Illinois 60084 U SA October1977 83 City Thanks Northwood ks MIAMA anks NIMAS See again next year Ed Whitten Box 176 Wall Street Sta tionNYC NY JOOOS FF Scale/Wischers continued page 21 materials easily obtainable likely found modelers work shops Requirements two hardwood blocks cabinet hinge hard piece metal such lathe cutting tool two scraps steel two pins made short lengths music wire wood screws hinge example shown photos hardwood blocks cut -birch 3 wide 1 longer aluminum cowl length slot cut across width block 1 its end fit lathe tool tightly should press fit block should set flush surface pressed place lathe tool used because extremely hard material will wear along its cutting edge tool available piece steel such 3/8-sq key stock may substituted since likely wear out during few operations made producing single louvered cowl notch cut lower wood block adjacent steel tool notch should approximate external shape louver punched can made X-acto knife louvers cut sequence form continu ous row second notch needed toward end block notch can cut across full width block shown photo Its spacing first notch determines exact spacing tween louvers row row louvers cut relief notch must also made along length block avoid flattening previous row completes die half tool punch cuts through alumi num filed strip steel ex act shape louver punch sweat soldered l/16-thick steel back up plate assembly will cemented pinned upper block later steps two blocks now hinged together end opposite notches drilling screw holes hinge blocks should spaced apart same amount thickness back-up plate punch now laid notch loosely hinged blocks brought together alignment Mark approxi mate location back-up plate upper block spread strong contact cement such Walthers Goo back-up plate marked off area wood Allow ten minutes ce ment dry punch set posi tion its notch bring blocks together R/C Buyers Guide new third edition just released Includes listings 2000 RC products Aircraft boats cars radio sys tems accessory items pictured de scribed 200 manufacturers represented Included descriptions new products displayed years trade shows Listings include important information retail prices Suggested retail price $425 hobby stores $500 postpaid Boyn ton & Associates Clifton House Clifton VA 22024 product review product review product review cemented areas make contact tool closed perfect alignment should result between punch die Dowel back-up plate upper block short lengths 3/32-dia music wire prevent possible shifting Test operation scrap alumi num sharp blow fist hammer will drive punch through alumi num forming louver evidence tearing notching along cut edge usually indicates too much clearance tween punch die clearance easily adjustable means paper shims inserted between lower hinge leaf block case stubbing due inter ference between punch die shims would inserted opposite side hinge Shims will very likely re quired because low quality fit pin cabinet hinge heavy paper about 003 thick provides useful incremental changes fine tuning possible thinner paper may sound like large project able produce tool help table saw slightly hour single cowl side punched 48 perfectly spaced uniform louvers produced 30 minutes Alter nate methods such fake glued-on strips would have taken much longer doubt ful quality end result An obvious benefit louvers functional prototype total area 150 ventilation slots sufficient cool 60 engine Douglas Mailplane properly cool engine enclosed cowl baffle arrangement control direct flow air through cylinder fins absolute necessity can made aluminum plywood baffle should fit cylinder closely force incoming air flow past through fins effect desired similar used full-size planes opening entering air larger baffle opening around engine creates pressure cowl effec tively forces air past fins velocity greater slipstream desirable air outlet behind en gine have area larger inlet least larger baffle bypass area case louvered cowl total area louvers keeping mind swarm small louvers may somewhat lacking efficiency com pared larger smoother openings thin aluminum used baf fle needs braced cannot deflect due pressure Deflection will spoil effectiveness permit incoming air find path lesser resistance rather flowing through fins overheated engine sagged during flight found reason After bracing baffle immediate improvement Mounting cowled engine too close firewall causes damming effect obstructing air flow can result 84 Model Aviation product review product review product review
Edition: Model Aviation - 1977/10
Page Numbers: 35, 82, 83, 84
7211 OSE fair assume Record Trial time place set records Such being case should come no surprise grand total nine new Indoor Category II records set during June 2nd through 5th bash Northwood Institutes 96-foot Atrium West Baden Indiana scene Second Annual Na tional Indoor Model Airplane Societys Record Trials combined FAI door Team Qualification Contest North- South Central Regions great time should have living easy meals good accommodation rates inexpensive flying high quality Nine new marks set during four-day session fabulous Northwood Institute Atrium occasion 2nd Annual NIMAS Record Trials combined FAI Team QualificationE Ed Whitten West Baden fast becoming Mecca Category II flying rate going entire list Category II records will some day have set thereplus maybe Category helicopter record set dining room second year MIAMA club Florida sponsored event pewter mugs awarded broke approached existing records highest percentage Doc Martin hand see everything moved smoothly during first two days Ed Whitten took over CD FAI flying Top man Mike Van Gorder es tablished new Junior Pennyplane record 9314 gave him percentage index 20930 Novice Pennyplane included eligible event Continued page 82 following top eight places 90% better existing records NIMAS Index flying first two days 1 Mike Van Gorder 2 Richard Whitten 3 Richard Whitten 4 Bucky Servaites 5 Richard Doig 6 Stan Chilton 7 Ron Ganser 8 Robert Larsh Jr Sr Sr Op COp Cop COp COp Pennyplane Pennyplane Stick ROG HL Stick Stick ROG Paper Stick Cabin ROG HL Glider 20930% 11869% 10565% 10469% 9970% 9600% 9556% 9075% 9314 10039 11090 35085 15494 23140 22166 2096 Manhattan results 1 Jim Miller8155Miller Special42 grams 2 Dick Obarski7090Not Really40 3 Robert Larsh6150Trivaites Special52 4 Ron Williams *5501Yelloise43 5 Walt Van Gorder5174Jezebel51 6 Dick Hardcastle4302Uptown Manhattan40 * proxied Richard Whitten October1977 35 Top man NIMAS Record Trials Mike Van Gorder holding Meuser designed Pen nyplane pics author taken Trials Buck Servaites poses official photo world record model Its 38085 flight killed 2 birds 1 stonean PAl Category Ill record AMA Category II record Dick Oberski demonstrates tail boom attaches 2nd place Manhattan model Dick has active flier since 30s OUT-PERFORMS ALL OTHERS AT THE 1976 NATIONALS 1st AC Mastert Class 1st AC Advanced 1st AC Novice 1st RC Sport Scale 1st Formula Pylon 1st Quarter Midget Pylon 1st CL Stunt Open 1st CL Stunt Senior 1st CL Stunt Junior 1st CL Combat Op & Sr 1st CL Slow Comb Op & Sr 1st CL Carrier II Op Jr Sr 1st CL Carrier Jr & Sr 1st CL Class 0 Speed Open 1st CL Class C Speed Jr & Sr 1st CL Claw B Speed Op & Sr 1st CL Cl Speed Op Sr Jr 1st CL Formula 40 Open 1st CL Class B Proto Jr HIGH PERFORMANCE * COMPETITION PROVEN * THIN RIGID BLADES OF HARD MAPLE WOOD * SUPERBIY FINISHED COMPLETELY FUEL PROOF SERIES 400 B FOR SPEED NG ADVANCED DESIGN NO 1 IN PYLON RACING LEADING SPEED RECORD HOLDER OP ALL TIMES RC PYLON RACING DIA PITCHPRICE 5%354129 755h6149 7SN 5hN SN149 8% 65657 757%189 9857 757%189 CONTROL LINE SPEED & RACING DIAPITCHPRICE 4%657129 4%55%129 6788%149 77510511 169 889189 89N 95N189 85775189 91213219 N NARROW recessed flush /s X a strips fuselage sides Cowl attached 4-40 bolt through C6 C7 small wood Screw through D4 C8 point seal raw edges fuselage gummed paper tape Make 1/tn wire main landing gear add balsa fairings sand shape Make tail skid form 1/16 wire Attach support wrapping thread glue place Make four outboard wing struts will notice slightly longer inboard struts Finishing Now time paint trim model before final assembly color scheme silver red same used Western Air Ex press 1926 mail routes wings empennage nose block removable cowl struts gear fairings silver fuselage red Lettering trim made black silver Monokote Use split fuel tubing cockpit combing paint black Make windscreen thin plastic glue fuselage Final Assembly Glue bottom wing fuse lage Glue outboard struts posi tion bottom wing make sure outboard wing struts stay aligned slip top wing over struts gluing struts drying place bottom wing dry turn airplane upside down glue struts place top wing Make fillets glue around strut enters wing surface increased strength Glue stabilizer place attach nylon control horn hook up pushrod Glue fin place Attach main landing gear gear clips wood screws Add 3-in-diameter vintage wheels Bolt motor motor mount attach fuel line throttle linkage 10-6 pro peller Bolt removable decking Make sit ply line guide attach left out board struts 4-40 bolts Pass leadout wires through line guide tie off ship now complete sure bal ance airplane shown plans R ecords/Whitten continued page 35 contest since Mikes Pennyplane Novice version Bob Meusers excellent No Nonsence design also set new Junior Novice Pennyplane record well Two records Richard Whitten repeated double win last year time setting new Senior Stick ROG Pennyplane times made four new records outstanding record established course Bucky Servaites superb 3508 5 flight established new AMA HL Stick time Whats same flight borke old FAI World Unlimited record FAI Category III sites Bucky really gunning came fully prepared necessary sanction papers such world record attempt model FAI design weighed less minimum gram FAI competition class requirement Nice going Bucky congratulations like see world records side pond Six records contests other typestoo Easy B perhaps hotly contested Stan Chiltons time must surely about tops Category II Take look best four Stan Chilton Bob Mullins Dick Obarski Al Rohrbaugh 16426 15340 14580 14150 Manhattan Formula very popular times much improved over last year Flying same MIAMA rules first five places higher Servaites last years winning West Baden time 4528 Cincinnatis Jim Miller took top honors 8145 establishing new Category II contest high time unofficial cabin event models built close minimum 40 airframe weight allowance except two 5 grams requirement recent Indianapolis contest should noted product review product review product review Super Pumper Compatible engines mountings tank locations pump comes adjusted put out 15 psi ounce fuel per minutedrops 1/8 /a psi idle depending engines adjust ment affects pressure low end high rpm because carburetor designed handle high pressure both idle wide openprolonged idle possible no hesitation response throttle Unit no larger filter need pumper course insure steady engine run under flight conditionsfrom full tank emptywithout variations such running rich lean breaks power hesitant re sponse throttle changes etc engine does require tapping pressure feed no problem well worth super ior engine performance Robart Mfg Co PO Box 122 Wheaton IL 60187 product review product review product review 82 Model Aviation NEWS FLASH Bob Smith Chatsworth CA set new World Speed Record June 19 Pylon mula 11125 RevUp 83h-6% new Pylon Rac ing prop 1st PP Class B Open 1st PP Class C Open SPECIAL PRO SERIES 2 FOR EC-FREE FUGHT CONTROL LINE DIAPITCHPRICE 5%3489 63489 733%4119 835458129 94586% 77%139 10467149 106W 8W149 10SEW159 114677/ 7% 758159 11SEW169 11%67189 126179 12SW179 1356219 145 6249 1556309 164/,6389 W WIDE BLADE EW EXTRA WIDE Manhattan fans wanted keep rules possible exception some preferring 5 gram minimum allowance wood wing stab bracing After second days flying came banquet Dishevelled modelers showed up strangely washed wearing crisp clean clothes nice change also nice see lovely wives lady friends present As last year banquet food excellent time given thank lucky stars have such good place fly relax plus announcement winners other little speeches third day flying turned over first three FAI qualifying rounds didnt mean records attempts end Ron Ganser come within whisker making new Cabin ROG record hung up two ships trying finally put together posted magnificent 25199 Hes after Cabin record long time Seven records came flying scale time lasted up until midnight Jim Miller put up top Peanut ROG times 1176 Piper J-3 1164 Itoh N-62 Eaglet Jim Pulley next 1028 flying Lacey M-l0 AMA Flying Scale ROG again Jim Miller time flying 26 version Itoh Eaglet 334 seconds same time Jim Richmond taking chances flying FAI Cat Walker record managed 3147 3105 worsening air conditions near floor kept him breaking record Jim wasnt denied however third official following day during FAI Qualifications new time 3240 also gave him top points Qualifica tions among 13 FAI fliers Actually flight set two AMA records being FAI gram models AMA Category II sites other FAI Category III sites So count em e new records West Baden really great place fly enjoyed minute raising Jolly Green Giants banner beginning its lowering end Ray Semmens Director Outside Activities Northwood Institute genial host tour duty coin cidentally came end right mid dle stay Much will miss him think new Director Paul Stroud will good friend too fact Pauls effort brought TV cameramen Louisvilles Channel 13 took some beautiful flying shots Stan Chilton giving commentary film has shown both locally National hook-up What can say excep tionally good four days flying wonderful vacation well worth two days driving way New York r CONTROL HOOKUP ACCESSORIES DU-BRO 20 FLEX-CABLE MOTOR CONTROL Provides ultimate control cable assembly HighlyBOATS.CARS control horn L flexible free running adjustable STRIP AILERONiF DU-BRO KWIK-LINK HORN WIREThetriedandtrue CONNECTORS Ispring steel I4- -any control1 shook-upsAlinkage Simplify yourHKwik-Link Ideal JLNo.75C No 10379cjI1I2each NY-STEEL KWIK-ROD ASSEMBLY No shrink no stretch free running fully adjustable control horn Strong simple easy install Hot wet cold days wont affect trim setting Complete 31 assembly Kwik-LinksNo 102$149 E THREADED [ COUPLERS cat No 212 new threaded couplers now designed fit perfectly Kwik Link II rods flex cable 5 $1 00 NYLON CONTROL HORNS Four throw adjust ment positions Set contains left right threading nut plates horn two selfand four screws NEW E-Z CONNECTORS WE HAVE INCLUDED IN EVERY PACKAGE OF SNAP EZ CONNECTORS 2 OF OUR NEW NYLON NEWS StillSNAP-ONS ESPECIALLY MADE TOON TIGHT ON ANY SIZE CONTROL ARM THESE NAP-ONS CAN SAFELY BE USED OVER ANDOVER AGAIN FOR THOSE OF YOU WHOOr 98C Pr STILL PREFER PERMANENT INSTALLATION PEEN PEEN ON THE WASHER AS YOUR CHOICECat No121ON CONTROL OVER-RIDE SERVO SAVER adjustable spring action assembly protects servo shock stalling Excellent throttle rudder nosewheel hookups Both light heavy duty springs included linkage application No 12098c SMALL SERVO MOUNTINGSMALL SERVO HARDWARENATURAL 60 pieces enough for---RUBBERGROMMETS five servos 20- Sheet Metal Screws20 pieces 20-Fibre Washers 0- Spacers No115 No 114$12059c DU-BRO PRODUCTS" INCORPORATED Bonner Road Wauconda Illinois 60084 U SA October1977 83 City Thanks Northwood ks MIAMA anks NIMAS See again next year Ed Whitten Box 176 Wall Street Sta tionNYC NY JOOOS FF Scale/Wischers continued page 21 materials easily obtainable likely found modelers work shops Requirements two hardwood blocks cabinet hinge hard piece metal such lathe cutting tool two scraps steel two pins made short lengths music wire wood screws hinge example shown photos hardwood blocks cut -birch 3 wide 1 longer aluminum cowl length slot cut across width block 1 its end fit lathe tool tightly should press fit block should set flush surface pressed place lathe tool used because extremely hard material will wear along its cutting edge tool available piece steel such 3/8-sq key stock may substituted since likely wear out during few operations made producing single louvered cowl notch cut lower wood block adjacent steel tool notch should approximate external shape louver punched can made X-acto knife louvers cut sequence form continu ous row second notch needed toward end block notch can cut across full width block shown photo Its spacing first notch determines exact spacing tween louvers row row louvers cut relief notch must also made along length block avoid flattening previous row completes die half tool punch cuts through alumi num filed strip steel ex act shape louver punch sweat soldered l/16-thick steel back up plate assembly will cemented pinned upper block later steps two blocks now hinged together end opposite notches drilling screw holes hinge blocks should spaced apart same amount thickness back-up plate punch now laid notch loosely hinged blocks brought together alignment Mark approxi mate location back-up plate upper block spread strong contact cement such Walthers Goo back-up plate marked off area wood Allow ten minutes ce ment dry punch set posi tion its notch bring blocks together R/C Buyers Guide new third edition just released Includes listings 2000 RC products Aircraft boats cars radio sys tems accessory items pictured de scribed 200 manufacturers represented Included descriptions new products displayed years trade shows Listings include important information retail prices Suggested retail price $425 hobby stores $500 postpaid Boyn ton & Associates Clifton House Clifton VA 22024 product review product review product review cemented areas make contact tool closed perfect alignment should result between punch die Dowel back-up plate upper block short lengths 3/32-dia music wire prevent possible shifting Test operation scrap alumi num sharp blow fist hammer will drive punch through alumi num forming louver evidence tearing notching along cut edge usually indicates too much clearance tween punch die clearance easily adjustable means paper shims inserted between lower hinge leaf block case stubbing due inter ference between punch die shims would inserted opposite side hinge Shims will very likely re quired because low quality fit pin cabinet hinge heavy paper about 003 thick provides useful incremental changes fine tuning possible thinner paper may sound like large project able produce tool help table saw slightly hour single cowl side punched 48 perfectly spaced uniform louvers produced 30 minutes Alter nate methods such fake glued-on strips would have taken much longer doubt ful quality end result An obvious benefit louvers functional prototype total area 150 ventilation slots sufficient cool 60 engine Douglas Mailplane properly cool engine enclosed cowl baffle arrangement control direct flow air through cylinder fins absolute necessity can made aluminum plywood baffle should fit cylinder closely force incoming air flow past through fins effect desired similar used full-size planes opening entering air larger baffle opening around engine creates pressure cowl effec tively forces air past fins velocity greater slipstream desirable air outlet behind en gine have area larger inlet least larger baffle bypass area case louvered cowl total area louvers keeping mind swarm small louvers may somewhat lacking efficiency com pared larger smoother openings thin aluminum used baf fle needs braced cannot deflect due pressure Deflection will spoil effectiveness permit incoming air find path lesser resistance rather flowing through fins overheated engine sagged during flight found reason After bracing baffle immediate improvement Mounting cowled engine too close firewall causes damming effect obstructing air flow can result 84 Model Aviation product review product review product review
Edition: Model Aviation - 1977/10
Page Numbers: 35, 82, 83, 84
7211 OSE fair assume Record Trial time place set records Such being case should come no surprise grand total nine new Indoor Category II records set during June 2nd through 5th bash Northwood Institutes 96-foot Atrium West Baden Indiana scene Second Annual Na tional Indoor Model Airplane Societys Record Trials combined FAI door Team Qualification Contest North- South Central Regions great time should have living easy meals good accommodation rates inexpensive flying high quality Nine new marks set during four-day session fabulous Northwood Institute Atrium occasion 2nd Annual NIMAS Record Trials combined FAI Team QualificationE Ed Whitten West Baden fast becoming Mecca Category II flying rate going entire list Category II records will some day have set thereplus maybe Category helicopter record set dining room second year MIAMA club Florida sponsored event pewter mugs awarded broke approached existing records highest percentage Doc Martin hand see everything moved smoothly during first two days Ed Whitten took over CD FAI flying Top man Mike Van Gorder es tablished new Junior Pennyplane record 9314 gave him percentage index 20930 Novice Pennyplane included eligible event Continued page 82 following top eight places 90% better existing records NIMAS Index flying first two days 1 Mike Van Gorder 2 Richard Whitten 3 Richard Whitten 4 Bucky Servaites 5 Richard Doig 6 Stan Chilton 7 Ron Ganser 8 Robert Larsh Jr Sr Sr Op COp Cop COp COp Pennyplane Pennyplane Stick ROG HL Stick Stick ROG Paper Stick Cabin ROG HL Glider 20930% 11869% 10565% 10469% 9970% 9600% 9556% 9075% 9314 10039 11090 35085 15494 23140 22166 2096 Manhattan results 1 Jim Miller8155Miller Special42 grams 2 Dick Obarski7090Not Really40 3 Robert Larsh6150Trivaites Special52 4 Ron Williams *5501Yelloise43 5 Walt Van Gorder5174Jezebel51 6 Dick Hardcastle4302Uptown Manhattan40 * proxied Richard Whitten October1977 35 Top man NIMAS Record Trials Mike Van Gorder holding Meuser designed Pen nyplane pics author taken Trials Buck Servaites poses official photo world record model Its 38085 flight killed 2 birds 1 stonean PAl Category Ill record AMA Category II record Dick Oberski demonstrates tail boom attaches 2nd place Manhattan model Dick has active flier since 30s OUT-PERFORMS ALL OTHERS AT THE 1976 NATIONALS 1st AC Mastert Class 1st AC Advanced 1st AC Novice 1st RC Sport Scale 1st Formula Pylon 1st Quarter Midget Pylon 1st CL Stunt Open 1st CL Stunt Senior 1st CL Stunt Junior 1st CL Combat Op & Sr 1st CL Slow Comb Op & Sr 1st CL Carrier II Op Jr Sr 1st CL Carrier Jr & Sr 1st CL Class 0 Speed Open 1st CL Class C Speed Jr & Sr 1st CL Claw B Speed Op & Sr 1st CL Cl Speed Op Sr Jr 1st CL Formula 40 Open 1st CL Class B Proto Jr HIGH PERFORMANCE * COMPETITION PROVEN * THIN RIGID BLADES OF HARD MAPLE WOOD * SUPERBIY FINISHED COMPLETELY FUEL PROOF SERIES 400 B FOR SPEED NG ADVANCED DESIGN NO 1 IN PYLON RACING LEADING SPEED RECORD HOLDER OP ALL TIMES RC PYLON RACING DIA PITCHPRICE 5%354129 755h6149 7SN 5hN SN149 8% 65657 757%189 9857 757%189 CONTROL LINE SPEED & RACING DIAPITCHPRICE 4%657129 4%55%129 6788%149 77510511 169 889189 89N 95N189 85775189 91213219 N NARROW recessed flush /s X a strips fuselage sides Cowl attached 4-40 bolt through C6 C7 small wood Screw through D4 C8 point seal raw edges fuselage gummed paper tape Make 1/tn wire main landing gear add balsa fairings sand shape Make tail skid form 1/16 wire Attach support wrapping thread glue place Make four outboard wing struts will notice slightly longer inboard struts Finishing Now time paint trim model before final assembly color scheme silver red same used Western Air Ex press 1926 mail routes wings empennage nose block removable cowl struts gear fairings silver fuselage red Lettering trim made black silver Monokote Use split fuel tubing cockpit combing paint black Make windscreen thin plastic glue fuselage Final Assembly Glue bottom wing fuse lage Glue outboard struts posi tion bottom wing make sure outboard wing struts stay aligned slip top wing over struts gluing struts drying place bottom wing dry turn airplane upside down glue struts place top wing Make fillets glue around strut enters wing surface increased strength Glue stabilizer place attach nylon control horn hook up pushrod Glue fin place Attach main landing gear gear clips wood screws Add 3-in-diameter vintage wheels Bolt motor motor mount attach fuel line throttle linkage 10-6 pro peller Bolt removable decking Make sit ply line guide attach left out board struts 4-40 bolts Pass leadout wires through line guide tie off ship now complete sure bal ance airplane shown plans R ecords/Whitten continued page 35 contest since Mikes Pennyplane Novice version Bob Meusers excellent No Nonsence design also set new Junior Novice Pennyplane record well Two records Richard Whitten repeated double win last year time setting new Senior Stick ROG Pennyplane times made four new records outstanding record established course Bucky Servaites superb 3508 5 flight established new AMA HL Stick time Whats same flight borke old FAI World Unlimited record FAI Category III sites Bucky really gunning came fully prepared necessary sanction papers such world record attempt model FAI design weighed less minimum gram FAI competition class requirement Nice going Bucky congratulations like see world records side pond Six records contests other typestoo Easy B perhaps hotly contested Stan Chiltons time must surely about tops Category II Take look best four Stan Chilton Bob Mullins Dick Obarski Al Rohrbaugh 16426 15340 14580 14150 Manhattan Formula very popular times much improved over last year Flying same MIAMA rules first five places higher Servaites last years winning West Baden time 4528 Cincinnatis Jim Miller took top honors 8145 establishing new Category II contest high time unofficial cabin event models built close minimum 40 airframe weight allowance except two 5 grams requirement recent Indianapolis contest should noted product review product review product review Super Pumper Compatible engines mountings tank locations pump comes adjusted put out 15 psi ounce fuel per minutedrops 1/8 /a psi idle depending engines adjust ment affects pressure low end high rpm because carburetor designed handle high pressure both idle wide openprolonged idle possible no hesitation response throttle Unit no larger filter need pumper course insure steady engine run under flight conditionsfrom full tank emptywithout variations such running rich lean breaks power hesitant re sponse throttle changes etc engine does require tapping pressure feed no problem well worth super ior engine performance Robart Mfg Co PO Box 122 Wheaton IL 60187 product review product review product review 82 Model Aviation NEWS FLASH Bob Smith Chatsworth CA set new World Speed Record June 19 Pylon mula 11125 RevUp 83h-6% new Pylon Rac ing prop 1st PP Class B Open 1st PP Class C Open SPECIAL PRO SERIES 2 FOR EC-FREE FUGHT CONTROL LINE DIAPITCHPRICE 5%3489 63489 733%4119 835458129 94586% 77%139 10467149 106W 8W149 10SEW159 114677/ 7% 758159 11SEW169 11%67189 126179 12SW179 1356219 145 6249 1556309 164/,6389 W WIDE BLADE EW EXTRA WIDE Manhattan fans wanted keep rules possible exception some preferring 5 gram minimum allowance wood wing stab bracing After second days flying came banquet Dishevelled modelers showed up strangely washed wearing crisp clean clothes nice change also nice see lovely wives lady friends present As last year banquet food excellent time given thank lucky stars have such good place fly relax plus announcement winners other little speeches third day flying turned over first three FAI qualifying rounds didnt mean records attempts end Ron Ganser come within whisker making new Cabin ROG record hung up two ships trying finally put together posted magnificent 25199 Hes after Cabin record long time Seven records came flying scale time lasted up until midnight Jim Miller put up top Peanut ROG times 1176 Piper J-3 1164 Itoh N-62 Eaglet Jim Pulley next 1028 flying Lacey M-l0 AMA Flying Scale ROG again Jim Miller time flying 26 version Itoh Eaglet 334 seconds same time Jim Richmond taking chances flying FAI Cat Walker record managed 3147 3105 worsening air conditions near floor kept him breaking record Jim wasnt denied however third official following day during FAI Qualifications new time 3240 also gave him top points Qualifica tions among 13 FAI fliers Actually flight set two AMA records being FAI gram models AMA Category II sites other FAI Category III sites So count em e new records West Baden really great place fly enjoyed minute raising Jolly Green Giants banner beginning its lowering end Ray Semmens Director Outside Activities Northwood Institute genial host tour duty coin cidentally came end right mid dle stay Much will miss him think new Director Paul Stroud will good friend too fact Pauls effort brought TV cameramen Louisvilles Channel 13 took some beautiful flying shots Stan Chilton giving commentary film has shown both locally National hook-up What can say excep tionally good four days flying wonderful vacation well worth two days driving way New York r CONTROL HOOKUP ACCESSORIES DU-BRO 20 FLEX-CABLE MOTOR CONTROL Provides ultimate control cable assembly HighlyBOATS.CARS control horn L flexible free running adjustable STRIP AILERONiF DU-BRO KWIK-LINK HORN WIREThetriedandtrue CONNECTORS Ispring steel I4- -any control1 shook-upsAlinkage Simplify yourHKwik-Link Ideal JLNo.75C No 10379cjI1I2each NY-STEEL KWIK-ROD ASSEMBLY No shrink no stretch free running fully adjustable control horn Strong simple easy install Hot wet cold days wont affect trim setting Complete 31 assembly Kwik-LinksNo 102$149 E THREADED [ COUPLERS cat No 212 new threaded couplers now designed fit perfectly Kwik Link II rods flex cable 5 $1 00 NYLON CONTROL HORNS Four throw adjust ment positions Set contains left right threading nut plates horn two selfand four screws NEW E-Z CONNECTORS WE HAVE INCLUDED IN EVERY PACKAGE OF SNAP EZ CONNECTORS 2 OF OUR NEW NYLON NEWS StillSNAP-ONS ESPECIALLY MADE TOON TIGHT ON ANY SIZE CONTROL ARM THESE NAP-ONS CAN SAFELY BE USED OVER ANDOVER AGAIN FOR THOSE OF YOU WHOOr 98C Pr STILL PREFER PERMANENT INSTALLATION PEEN PEEN ON THE WASHER AS YOUR CHOICECat No121ON CONTROL OVER-RIDE SERVO SAVER adjustable spring action assembly protects servo shock stalling Excellent throttle rudder nosewheel hookups Both light heavy duty springs included linkage application No 12098c SMALL SERVO MOUNTINGSMALL SERVO HARDWARENATURAL 60 pieces enough for---RUBBERGROMMETS five servos 20- Sheet Metal Screws20 pieces 20-Fibre Washers 0- Spacers No115 No 114$12059c DU-BRO PRODUCTS" INCORPORATED Bonner Road Wauconda Illinois 60084 U SA October1977 83 City Thanks Northwood ks MIAMA anks NIMAS See again next year Ed Whitten Box 176 Wall Street Sta tionNYC NY JOOOS FF Scale/Wischers continued page 21 materials easily obtainable likely found modelers work shops Requirements two hardwood blocks cabinet hinge hard piece metal such lathe cutting tool two scraps steel two pins made short lengths music wire wood screws hinge example shown photos hardwood blocks cut -birch 3 wide 1 longer aluminum cowl length slot cut across width block 1 its end fit lathe tool tightly should press fit block should set flush surface pressed place lathe tool used because extremely hard material will wear along its cutting edge tool available piece steel such 3/8-sq key stock may substituted since likely wear out during few operations made producing single louvered cowl notch cut lower wood block adjacent steel tool notch should approximate external shape louver punched can made X-acto knife louvers cut sequence form continu ous row second notch needed toward end block notch can cut across full width block shown photo Its spacing first notch determines exact spacing tween louvers row row louvers cut relief notch must also made along length block avoid flattening previous row completes die half tool punch cuts through alumi num filed strip steel ex act shape louver punch sweat soldered l/16-thick steel back up plate assembly will cemented pinned upper block later steps two blocks now hinged together end opposite notches drilling screw holes hinge blocks should spaced apart same amount thickness back-up plate punch now laid notch loosely hinged blocks brought together alignment Mark approxi mate location back-up plate upper block spread strong contact cement such Walthers Goo back-up plate marked off area wood Allow ten minutes ce ment dry punch set posi tion its notch bring blocks together R/C Buyers Guide new third edition just released Includes listings 2000 RC products Aircraft boats cars radio sys tems accessory items pictured de scribed 200 manufacturers represented Included descriptions new products displayed years trade shows Listings include important information retail prices Suggested retail price $425 hobby stores $500 postpaid Boyn ton & Associates Clifton House Clifton VA 22024 product review product review product review cemented areas make contact tool closed perfect alignment should result between punch die Dowel back-up plate upper block short lengths 3/32-dia music wire prevent possible shifting Test operation scrap alumi num sharp blow fist hammer will drive punch through alumi num forming louver evidence tearing notching along cut edge usually indicates too much clearance tween punch die clearance easily adjustable means paper shims inserted between lower hinge leaf block case stubbing due inter ference between punch die shims would inserted opposite side hinge Shims will very likely re quired because low quality fit pin cabinet hinge heavy paper about 003 thick provides useful incremental changes fine tuning possible thinner paper may sound like large project able produce tool help table saw slightly hour single cowl side punched 48 perfectly spaced uniform louvers produced 30 minutes Alter nate methods such fake glued-on strips would have taken much longer doubt ful quality end result An obvious benefit louvers functional prototype total area 150 ventilation slots sufficient cool 60 engine Douglas Mailplane properly cool engine enclosed cowl baffle arrangement control direct flow air through cylinder fins absolute necessity can made aluminum plywood baffle should fit cylinder closely force incoming air flow past through fins effect desired similar used full-size planes opening entering air larger baffle opening around engine creates pressure cowl effec tively forces air past fins velocity greater slipstream desirable air outlet behind en gine have area larger inlet least larger baffle bypass area case louvered cowl total area louvers keeping mind swarm small louvers may somewhat lacking efficiency com pared larger smoother openings thin aluminum used baf fle needs braced cannot deflect due pressure Deflection will spoil effectiveness permit incoming air find path lesser resistance rather flowing through fins overheated engine sagged during flight found reason After bracing baffle immediate improvement Mounting cowled engine too close firewall causes damming effect obstructing air flow can result 84 Model Aviation product review product review product review