Control Giant Scale Bob Beckman HOSTETLER PROJECTS first met Wendell Hostetler Toledo 1980 Since have corresponding fairly regular basis thought would interested last exchanges First letter response Dear Wendell Youre always coming up interesting things last letter contains men tion least three big Kioritz interest just little ago Dick called told bit about some engines looking hoping get chance look at least big Kioritz engines point have explain DIck refered Dick Roush Roush Manufacturing Dick custom basis converting some larger Kioritz engines aircraft use Note usues ci cubic inch Next touched another pet subjectsprops have long felt really arent putting enough prop engines what saw during engine tests seemed confirm mentioned 2 1-14 prop made made Would possible get try engines during tests finaly P6-E Please let take crack reviewing plans soon available hope have prototype Todelo look forward seeing Regards Bob reply interesting part Dear Bob Props also pet carve sand Giant Scale props has interesting made six props 37 Kioritz first three flutter problems made piece hard maple concluded verytnngs oig Hill Lountry Wally Hinker big man builds biggerhis Stoip Starlet half-scale Its perfect man whogvu nia r-oiuer uviii preflight examinatIon Scene doesnt want bend over prop engineury uai hying site OSAA Fly-in Plans reviewed month 42 Model Aviation portion theflight line spectatorarca atthe 1980 Hill Country Flyers Mammoth Scale Fly-in large hangar background isthe Wings & Wheels Museumits full fabulous old planes cars years edition scheduled Augusta 9 Thats special-order Roush Mfg 37 cu iuorltz nose Wendell Hostetlers Skybolt prop Wendells homemade 21 -1 4s since getting bigger approaching full scale should adopt full-scale practice laminating did second set three laminating eliminated flutter lam mattons 3/16-in thick have 22-14 a2014 4 have run 21-14 has flown would happy loan props could testing two days return promptly rpms props 37 ci follows 20-14 6500 21-14 6000 22-14 5200 experience 24 Kioritz has indi cated have using enough prop will turn between 7900 8000 ground pulls 26-lb Skybolt good authority 20-10 good estimation quite crisp have used 20-12 static thrust good flight performance equal other props plane does have constant speed its overall performance down bit present feeling keep diameter down pitch up line kept diameter down pitch up 37 Kioritz 37 Kioritz has carb front exhaust rear enclosed coil points magneto assembly needles very accessible adjustments running think arrangement neat went 40cc 24 ci 60cc 37 ci weight increase 5 oz have very pleased P6-E project. plane will formally introduced Toledo BR T&D Fiberglass will have one-piece cowl pants two pieces assembled Tom Keeling T&D made ones photo See last mont/is column BR T&D will also make gear aux fuel tank read close turns out Wendall agrees need prop us have using two ways put prop increase diameter increase pitch right three waysincrease both fourth way isnt obvious shape area blade havent seen Wendells props yet have told fairly wide wide blade can produce thrust narrow given rpm trick have thin yet efficient airfoil section blade prop can reach rpm experience engine test series Continued page 120 GET INTO THE AIR FAST Quick-Building Sport-Trainer Model Merchant ALLEY KAT An ideal low-wing aileron trainer Flies both B pattern 40 balsaThe thing plain about Jane name truly kit machine-cut parts everythingclassicaport-trainer shesgentle slow 15 needed complete WS 54 Areawilling performer 25 Builds no time perassembled fuse built-in motor mounts pre-shaped 800 Eng 35-46 Radio 3-4 Chcontrol-surfaces can order hercompletely pre Gompete instructions Price $5995built $8495 Span 51 Weight 3-4 lbs Eng 1 5-25 Radio 3-4 Ch Detailed instructions MR ZIP V2A Sport Trainer HOBBY COMMANDER Heres trainer character motor prop up high theVre easy start hard kill Large wing flatbottomed airfoil give extended flights hands-off landings Perfect com plete novice fun experienced flyer Ready-to-f iy just stew hours Span 45 Weight 20-25 oz Eng 049-051 E-Z FLYER Ideal first bipe Slow easy a35 hot 45 Fast construction fiberglass fuse pre-cut parts Formed gear hardware package full sized plans instructions WS 47 Area 730 Eng 25-45 Radio 3-4 ChannelPrice $5995 EAGLE 1 its pre-assembled fuselage sheet-foam wing construction techniques youll ready soar just few hours great trainer competition slope thermal performance Tow power assist Span 78 Weight 1 lb 2 os Wing Loading 78 az/sq ft Radio 2-3 ChannelPrice $3995 Ideal novice wants start off something little bigger All-Balsa kit comes machine-cut parts pre formed gear hardware Superior take-off landing characteristics WS 54 Area 600 sq 35-46 Radio 3-4 Channel Price $5995 Did know about selection sport competition airplanes Send SASE today free catalog iOC L If Local Dealer May Order Direct Send check money order 554 E FRONTON ST BROWNSVILLE TX 78520 512 541-3867 August1981 43 Runestrand props Quadra L-4U cirasahopper cigar safety device ash starts flick off knows hes too close prop PLANE JANE Sport K Finish international orange butyrate dope flattener added over silkspan complete fuselage top cockpit removeable access engine drive train Weldon has made electric retract mechanisms operational sprung landing gear legs reservoir supplies air bladder wheel brakes cockpit well detailed including operating hand cranks lowering side windows Unquestionably fine example Precision Scale Giant Scale class 18 lb Vito Tomeos scratch-built 1/6-scale Hawker Sea Fury first place winner Military Stand-off class seen 18 lb 77-in span model flight last years Nats Dennis Bryll placed second P-47 Thunderbolt Third place Stand-off winner anotherfamiliar plane having won first place 77 80 Nats P-6 1 Black Widow Roger Brennom 195 lb plane scratch-built Wylam drawings foam balsa construction Hobbypoxy finish Three hand-made nonretractable gear legs have two springs Roger has recently installed new OS 60 engines seems well-tried flying planes making appearance Toledo Non military Stand-off Scale Starduster Too Terry Williams awarded first place Team Selection proposal has made select three Scale Teams Seguin Nats F4C Radio Control F4B Control-line Stand-off Radio Control though nation making bid 1982 World Champ ionship has USSR have elected omit Stand-off RC being proposed basis another nation may make attractive bid 1982 would include Stand off RC preparations must made send team eventuality Therefore modelers wish have entries considered three classes must have FAI stamp AMA licenses must pay FAI entry fee addition Nats entry fee must enter model complies FAI rules should noted FAI designation event Stand-off RC Scale US called RC Sport Scale no other nation makes successful bid 1982 World Championship FAI plenary session December USSR bid accepted refunds FAI program entry fee will made AMA headquarters upon appli cation Sport Scale RC Nats contestants serious effort being made least other nation outbid USSR Stand-off RC can included present far popular Scale event nations except USSR certainly deserves World Cham pionship status Bob andDolly Wischer Rt 1 S-22lLapham Peak Roa4 Delafiel4 WI 53018 RC Aerobatics/Van Putte Continued page 41 7Z transmitter because great sticks convenient trim pot locations So made compromise bought Ace Silver Seven encoder kit replace Kraft encoder As usual Fred Marks has done fine job Ace developing kit instructions assembly adjustment troubleshooting Ace suggests experienced kit build ers attempt retrofit encoder another transmitter However Ive experience assembling Ace Royal servo kits trouble shooting servo problems building Royal re ceiver installing dual rate switches KP-7Z transmitter Consequently lam optimis tic half-vast experience will carry through job course intend thing instructions say thoroughly read what George Myers wrote column Silver Seven transmitter August 1980 is6ue Model Aviation things work out well youll hear about what great job did dont work out Ill probably forget mention Ron Van Putte 111 Sleepy Oaks Rd Fort Walton Beach FL 32548 RC Giant Scale/Beckman Continued page 43 indicates commercial props 18-10 size will deliver 20 25 lb thrust 8000 rpm Its no wonder prop pulls Wendells Skybolt good authority whole subject propellers has become fascinating hadnt really put much thought started engine project quickly became apparent testing props much engines variables involved impossible really cover everything properly space well have available going through tremendous learning process ourselves just hope will able pass along Plan reviews month reviewing two plans available Taylorcraft Ltd have around about two years first saw prototypes Bill Wendts Fokker DVIII Ken Runestrands L-4B Morgan Hill 1979 first Giant Scale Fly-in literaly overwhelmed new impressions information two birds stood out Bills DVIII built scale sounds odd US modelers 1 ft 1 meter alittlelessthan one-third scale Bill worked European drawings metric dimensions easier converting exact one-third scale plans three sheets approxi mately 3 ft 6 ft clear easily read contain fair amount detail dont have much detail control surface hinging control hook-up however dont have experience area youll need some help obvious aircraft designed big bangers mind Materials construc tion techniques rugged Basic structures spruce plywood some balsa mostly weight critical wing employs beautiful set box spars built up -in square spruce 1/32-in ply wing separates center both wing locking strut attachment systems ingenious simple effective plans show Quadra original flew nicely cowl will accept almost currently available engines building Bills plans change would make use foam-core board some ribs formers rudder elevator cores already know Im hooked foam-core L-4B Grasshopper ubiquitous Piper Cub uniform Painted olive drab cabin windows extended behind wing used throughout WW II liaison observation aircraft Kens plans unusual can used modify existing kit Nosen Balsa USA manner builder selects cuts materials work kit sure make material changes indicated Kens plans Continued page 122 120 Model Aviation job heresonethatwill 37 Cu engine develops almost 4 hp yet weighs pound over Quadra has power pull Byron Pitta straight upwithout prop reduction also takes no space Quadrait will fit entirely inside cowl Nosen D unexposed stripped chain-saw motor engine manufactured USA miniature aircraft use Comes complete ready run year 100% warranty OMPLETE MODIFIED 37 ENGINE Lnul I. r.at ramoivgq Senu .ct MO COD UPS Add $400 shipping & Ia SCALE DOCUIVIENTATION SCALE DRAWHOTOS eOCKLETS IP REPLA-TECH 191 INTERNATIONAL CATALOGS $200 4SEOO MC KENZIE HWY VIDA OREGON 974B9 Price 2995 K Miter Master Mite Master tool designed enable crafts man wake perfect loints wood accurately sanding pre-setangles Thesquaringfence{A aflowsforprecisegO angles retracts below surface Any angle can beset triangular guide using adjacent side complement angle will formed waking inoaluahle truss construction sew cyanuacrylate adhesines require accurately fitted joints achiene full strnngth Miter Master will enableyso wake thaw easily FOURMOST PRODUCTS 4040 24th Ave Forest Grove OR 97116 L-4B spans 110-in 1610 sq wing area projected 18 lb weight wing loading little over 15 lb/sq ft Quadra can deliver over 18 lb static thrust plane can real performer can certainly recommend both plans less-experienced Giant Scale builder flier available Taylorcraft Ltd 216 Willow Rd Roseville CA 95678 DVIII $2500 L-4B $1995 Plans review list plans reviewed keeps growing faster can keep up Add following list Super Cub Big Mach non-scale Anticlike design Biz Cap Plan Service 1408 Morris Saginaw MI 48601 Travelaire 2000 J B Special non-scale flyable biplane monoplane Behrens Plan Service 31-27 Healy Ave Far Rockway NY 11691 Waco YKS-6 Ryan SC Bob Morse Mammoth Scale Plans 3351 Pruneridge Ave Santa Clara CA 95051 FW 190 P-Si Bob Holman Plans P0 Box 741 San Bernardino CA 92402 P6-E Wendell Hostetler 1041 Heatherwood Lane Orrville OH 44667 Christen Eagle T&D Fiberglass 30926 APrice $750 Assembled booed 503 357-2732 Block Garden City MI 48135 SE-5 Baby Air Design 549 Appian Way Napoleon OH 43545 Waco HKS-7 Norm Rosenstock 94 Cedar Dr Plainview NY 11803 Fly-in dates some Giant Scale fly-ins have scheduled along contact further information August 8 & 9 Three Rivers Airport Jim Susemihl 240 South Main Three Rivers MI 49093 616 273-8036 August 15 & 16 Bayport Aerodrome Long Island NY Pete Polapink 516 585-7013 after 600 pm August 30 Oshkosh WI Hubert Ziebell 338 W 20th st Oshkosh WI 54901 October 8 II 5th Annual QSAA Flyin Pat Bunker 6532 Bourbon Way Las Vegas NV 89107 October17 & 18 IMAA East Coast Regional Fort Meade MD Ill pass details available BIG Big Bangers As mentioned above Roush Manufacturing offering some Super Engines up 56 cu displacement engines come out new Echo-Kioritz professional chainsaws covered limited warranty Currently three engines available direct special-orderbasis a39 ci a48 ci 56 ci Power output ranges 55 hp 85 hp Although quality performance engines high prices 48 example will set back about $450 interested write Roush Mfg P0 Box 251 Sandyville OH 44671 want point out large engines intended special applications kind Giant Scale aircraft would require kind power doesnt belong average flying field personal feeling 4 ci 40 lb reasonable limits 9944% models Bob Beckman 8248 Holly Grove Court Manassas VA 22110 RC Helicopters/Chesney Continued page 45 clear runway area turning Helicopter toward pit did notice someone pit running up behind tell air plane dead stick Thats distractionI crashed Helicopter avoid hitting person Another tip Keep assistant you fly can eyes ears concentrate flying similar happening shopping mall flying exhibition occurred crowd back pushed closer look Helicopter 30 feet up over head crowd front sides least 70 feet away did tail-rotor turn towards flew over head turned found myself face-toface crowd exhibition cleared hover demonstrations distraction led Helicopter accelerating fast forward flight over heads spectators crowd seemed pleased scared death An assistant would have handy security handling three sides crowd didnt control fourth use ropes now Although suspect Helicopters bore aggra vate some fixed-wing fliers uninitiated spectators hypnotized RC Helcopters will often come close possible Helicopter flight particularly true Heli copter hovered long periods time after pilot closeit must safe think RC Helicopters potentially dangerous pilot spectators surrounding obstacles other sport aircraft wont tell story about five cars hit learning fly Just call Ace consider Helicopters generally com patible other RC activities No suggest Helicopters banned RC AT LAST Hard Break Fibre-Filled Prop Size 10/6 Introductory Offer 6 495 12 900 24 1750 Postage paidClub Discounts Avail1 Send check money order ACCU-FLiTE 122 Model Aviation NEW FOURMOST PRODUCTS FUSELAGE FIXTURE FOURMOST FUSELAGE FIXTURE designed AatortaticaIIy align fuselage structures huilt strings measuring eveballing Srnply slide foot centering brackets track until align firewall tail joist two bulkheads Clamp fuselage together lightly rubberbands structure will straight track ccumm4t nuctu.uptofeuI.t RUBBER STRIP FAI RUBBER 4 out S flyoff 1979 World Championships used FAI RUBBER Made USA SIZES % 3/76 7/8 3132 1/76 1mm 042 thick SPOOLED GROSS WT 1-% 1- LBS PRICE $1250 first spool PPD US Additional spools $1250 NEW PIRELLI SIZES 6mm 5mm 4mm X 1mm PRICE $7500 first hank PPD US Additional spools $1450 Sole US Distributor World-Wide Sales Send 25 cents 1980 Catalog FAI Model Supply ~3957TorranceC0510 GIANT SCALE Al* QUARTER SCALE W13P00 BY POPULAR DEMAND SPANDAU & VICKEES PLAtTIC GUN KITS STANDARD PILOT COMPLETE WITH GOGGLES GNOME ROTARY ENGINE CYLINDESt VINTAGE GOLDEN AGE ASALLOON TIRE WHEELS Send $1 Illustrated Catalog WILLIAMS BROTHERS INC Dept MA 181 Pawnee Street -usfi San Marcos Calif 92069
Edition: Model Aviation - 1981/08
Page Numbers: 42, 43, 120, 122
Control Giant Scale Bob Beckman HOSTETLER PROJECTS first met Wendell Hostetler Toledo 1980 Since have corresponding fairly regular basis thought would interested last exchanges First letter response Dear Wendell Youre always coming up interesting things last letter contains men tion least three big Kioritz interest just little ago Dick called told bit about some engines looking hoping get chance look at least big Kioritz engines point have explain DIck refered Dick Roush Roush Manufacturing Dick custom basis converting some larger Kioritz engines aircraft use Note usues ci cubic inch Next touched another pet subjectsprops have long felt really arent putting enough prop engines what saw during engine tests seemed confirm mentioned 2 1-14 prop made made Would possible get try engines during tests finaly P6-E Please let take crack reviewing plans soon available hope have prototype Todelo look forward seeing Regards Bob reply interesting part Dear Bob Props also pet carve sand Giant Scale props has interesting made six props 37 Kioritz first three flutter problems made piece hard maple concluded verytnngs oig Hill Lountry Wally Hinker big man builds biggerhis Stoip Starlet half-scale Its perfect man whogvu nia r-oiuer uviii preflight examinatIon Scene doesnt want bend over prop engineury uai hying site OSAA Fly-in Plans reviewed month 42 Model Aviation portion theflight line spectatorarca atthe 1980 Hill Country Flyers Mammoth Scale Fly-in large hangar background isthe Wings & Wheels Museumits full fabulous old planes cars years edition scheduled Augusta 9 Thats special-order Roush Mfg 37 cu iuorltz nose Wendell Hostetlers Skybolt prop Wendells homemade 21 -1 4s since getting bigger approaching full scale should adopt full-scale practice laminating did second set three laminating eliminated flutter lam mattons 3/16-in thick have 22-14 a2014 4 have run 21-14 has flown would happy loan props could testing two days return promptly rpms props 37 ci follows 20-14 6500 21-14 6000 22-14 5200 experience 24 Kioritz has indi cated have using enough prop will turn between 7900 8000 ground pulls 26-lb Skybolt good authority 20-10 good estimation quite crisp have used 20-12 static thrust good flight performance equal other props plane does have constant speed its overall performance down bit present feeling keep diameter down pitch up line kept diameter down pitch up 37 Kioritz 37 Kioritz has carb front exhaust rear enclosed coil points magneto assembly needles very accessible adjustments running think arrangement neat went 40cc 24 ci 60cc 37 ci weight increase 5 oz have very pleased P6-E project. plane will formally introduced Toledo BR T&D Fiberglass will have one-piece cowl pants two pieces assembled Tom Keeling T&D made ones photo See last mont/is column BR T&D will also make gear aux fuel tank read close turns out Wendall agrees need prop us have using two ways put prop increase diameter increase pitch right three waysincrease both fourth way isnt obvious shape area blade havent seen Wendells props yet have told fairly wide wide blade can produce thrust narrow given rpm trick have thin yet efficient airfoil section blade prop can reach rpm experience engine test series Continued page 120 GET INTO THE AIR FAST Quick-Building Sport-Trainer Model Merchant ALLEY KAT An ideal low-wing aileron trainer Flies both B pattern 40 balsaThe thing plain about Jane name truly kit machine-cut parts everythingclassicaport-trainer shesgentle slow 15 needed complete WS 54 Areawilling performer 25 Builds no time perassembled fuse built-in motor mounts pre-shaped 800 Eng 35-46 Radio 3-4 Chcontrol-surfaces can order hercompletely pre Gompete instructions Price $5995built $8495 Span 51 Weight 3-4 lbs Eng 1 5-25 Radio 3-4 Ch Detailed instructions MR ZIP V2A Sport Trainer HOBBY COMMANDER Heres trainer character motor prop up high theVre easy start hard kill Large wing flatbottomed airfoil give extended flights hands-off landings Perfect com plete novice fun experienced flyer Ready-to-f iy just stew hours Span 45 Weight 20-25 oz Eng 049-051 E-Z FLYER Ideal first bipe Slow easy a35 hot 45 Fast construction fiberglass fuse pre-cut parts Formed gear hardware package full sized plans instructions WS 47 Area 730 Eng 25-45 Radio 3-4 ChannelPrice $5995 EAGLE 1 its pre-assembled fuselage sheet-foam wing construction techniques youll ready soar just few hours great trainer competition slope thermal performance Tow power assist Span 78 Weight 1 lb 2 os Wing Loading 78 az/sq ft Radio 2-3 ChannelPrice $3995 Ideal novice wants start off something little bigger All-Balsa kit comes machine-cut parts pre formed gear hardware Superior take-off landing characteristics WS 54 Area 600 sq 35-46 Radio 3-4 Channel Price $5995 Did know about selection sport competition airplanes Send SASE today free catalog iOC L If Local Dealer May Order Direct Send check money order 554 E FRONTON ST BROWNSVILLE TX 78520 512 541-3867 August1981 43 Runestrand props Quadra L-4U cirasahopper cigar safety device ash starts flick off knows hes too close prop PLANE JANE Sport K Finish international orange butyrate dope flattener added over silkspan complete fuselage top cockpit removeable access engine drive train Weldon has made electric retract mechanisms operational sprung landing gear legs reservoir supplies air bladder wheel brakes cockpit well detailed including operating hand cranks lowering side windows Unquestionably fine example Precision Scale Giant Scale class 18 lb Vito Tomeos scratch-built 1/6-scale Hawker Sea Fury first place winner Military Stand-off class seen 18 lb 77-in span model flight last years Nats Dennis Bryll placed second P-47 Thunderbolt Third place Stand-off winner anotherfamiliar plane having won first place 77 80 Nats P-6 1 Black Widow Roger Brennom 195 lb plane scratch-built Wylam drawings foam balsa construction Hobbypoxy finish Three hand-made nonretractable gear legs have two springs Roger has recently installed new OS 60 engines seems well-tried flying planes making appearance Toledo Non military Stand-off Scale Starduster Too Terry Williams awarded first place Team Selection proposal has made select three Scale Teams Seguin Nats F4C Radio Control F4B Control-line Stand-off Radio Control though nation making bid 1982 World Champ ionship has USSR have elected omit Stand-off RC being proposed basis another nation may make attractive bid 1982 would include Stand off RC preparations must made send team eventuality Therefore modelers wish have entries considered three classes must have FAI stamp AMA licenses must pay FAI entry fee addition Nats entry fee must enter model complies FAI rules should noted FAI designation event Stand-off RC Scale US called RC Sport Scale no other nation makes successful bid 1982 World Championship FAI plenary session December USSR bid accepted refunds FAI program entry fee will made AMA headquarters upon appli cation Sport Scale RC Nats contestants serious effort being made least other nation outbid USSR Stand-off RC can included present far popular Scale event nations except USSR certainly deserves World Cham pionship status Bob andDolly Wischer Rt 1 S-22lLapham Peak Roa4 Delafiel4 WI 53018 RC Aerobatics/Van Putte Continued page 41 7Z transmitter because great sticks convenient trim pot locations So made compromise bought Ace Silver Seven encoder kit replace Kraft encoder As usual Fred Marks has done fine job Ace developing kit instructions assembly adjustment troubleshooting Ace suggests experienced kit build ers attempt retrofit encoder another transmitter However Ive experience assembling Ace Royal servo kits trouble shooting servo problems building Royal re ceiver installing dual rate switches KP-7Z transmitter Consequently lam optimis tic half-vast experience will carry through job course intend thing instructions say thoroughly read what George Myers wrote column Silver Seven transmitter August 1980 is6ue Model Aviation things work out well youll hear about what great job did dont work out Ill probably forget mention Ron Van Putte 111 Sleepy Oaks Rd Fort Walton Beach FL 32548 RC Giant Scale/Beckman Continued page 43 indicates commercial props 18-10 size will deliver 20 25 lb thrust 8000 rpm Its no wonder prop pulls Wendells Skybolt good authority whole subject propellers has become fascinating hadnt really put much thought started engine project quickly became apparent testing props much engines variables involved impossible really cover everything properly space well have available going through tremendous learning process ourselves just hope will able pass along Plan reviews month reviewing two plans available Taylorcraft Ltd have around about two years first saw prototypes Bill Wendts Fokker DVIII Ken Runestrands L-4B Morgan Hill 1979 first Giant Scale Fly-in literaly overwhelmed new impressions information two birds stood out Bills DVIII built scale sounds odd US modelers 1 ft 1 meter alittlelessthan one-third scale Bill worked European drawings metric dimensions easier converting exact one-third scale plans three sheets approxi mately 3 ft 6 ft clear easily read contain fair amount detail dont have much detail control surface hinging control hook-up however dont have experience area youll need some help obvious aircraft designed big bangers mind Materials construc tion techniques rugged Basic structures spruce plywood some balsa mostly weight critical wing employs beautiful set box spars built up -in square spruce 1/32-in ply wing separates center both wing locking strut attachment systems ingenious simple effective plans show Quadra original flew nicely cowl will accept almost currently available engines building Bills plans change would make use foam-core board some ribs formers rudder elevator cores already know Im hooked foam-core L-4B Grasshopper ubiquitous Piper Cub uniform Painted olive drab cabin windows extended behind wing used throughout WW II liaison observation aircraft Kens plans unusual can used modify existing kit Nosen Balsa USA manner builder selects cuts materials work kit sure make material changes indicated Kens plans Continued page 122 120 Model Aviation job heresonethatwill 37 Cu engine develops almost 4 hp yet weighs pound over Quadra has power pull Byron Pitta straight upwithout prop reduction also takes no space Quadrait will fit entirely inside cowl Nosen D unexposed stripped chain-saw motor engine manufactured USA miniature aircraft use Comes complete ready run year 100% warranty OMPLETE MODIFIED 37 ENGINE Lnul I. r.at ramoivgq Senu .ct MO COD UPS Add $400 shipping & Ia SCALE DOCUIVIENTATION SCALE DRAWHOTOS eOCKLETS IP REPLA-TECH 191 INTERNATIONAL CATALOGS $200 4SEOO MC KENZIE HWY VIDA OREGON 974B9 Price 2995 K Miter Master Mite Master tool designed enable crafts man wake perfect loints wood accurately sanding pre-setangles Thesquaringfence{A aflowsforprecisegO angles retracts below surface Any angle can beset triangular guide using adjacent side complement angle will formed waking inoaluahle truss construction sew cyanuacrylate adhesines require accurately fitted joints achiene full strnngth Miter Master will enableyso wake thaw easily FOURMOST PRODUCTS 4040 24th Ave Forest Grove OR 97116 L-4B spans 110-in 1610 sq wing area projected 18 lb weight wing loading little over 15 lb/sq ft Quadra can deliver over 18 lb static thrust plane can real performer can certainly recommend both plans less-experienced Giant Scale builder flier available Taylorcraft Ltd 216 Willow Rd Roseville CA 95678 DVIII $2500 L-4B $1995 Plans review list plans reviewed keeps growing faster can keep up Add following list Super Cub Big Mach non-scale Anticlike design Biz Cap Plan Service 1408 Morris Saginaw MI 48601 Travelaire 2000 J B Special non-scale flyable biplane monoplane Behrens Plan Service 31-27 Healy Ave Far Rockway NY 11691 Waco YKS-6 Ryan SC Bob Morse Mammoth Scale Plans 3351 Pruneridge Ave Santa Clara CA 95051 FW 190 P-Si Bob Holman Plans P0 Box 741 San Bernardino CA 92402 P6-E Wendell Hostetler 1041 Heatherwood Lane Orrville OH 44667 Christen Eagle T&D Fiberglass 30926 APrice $750 Assembled booed 503 357-2732 Block Garden City MI 48135 SE-5 Baby Air Design 549 Appian Way Napoleon OH 43545 Waco HKS-7 Norm Rosenstock 94 Cedar Dr Plainview NY 11803 Fly-in dates some Giant Scale fly-ins have scheduled along contact further information August 8 & 9 Three Rivers Airport Jim Susemihl 240 South Main Three Rivers MI 49093 616 273-8036 August 15 & 16 Bayport Aerodrome Long Island NY Pete Polapink 516 585-7013 after 600 pm August 30 Oshkosh WI Hubert Ziebell 338 W 20th st Oshkosh WI 54901 October 8 II 5th Annual QSAA Flyin Pat Bunker 6532 Bourbon Way Las Vegas NV 89107 October17 & 18 IMAA East Coast Regional Fort Meade MD Ill pass details available BIG Big Bangers As mentioned above Roush Manufacturing offering some Super Engines up 56 cu displacement engines come out new Echo-Kioritz professional chainsaws covered limited warranty Currently three engines available direct special-orderbasis a39 ci a48 ci 56 ci Power output ranges 55 hp 85 hp Although quality performance engines high prices 48 example will set back about $450 interested write Roush Mfg P0 Box 251 Sandyville OH 44671 want point out large engines intended special applications kind Giant Scale aircraft would require kind power doesnt belong average flying field personal feeling 4 ci 40 lb reasonable limits 9944% models Bob Beckman 8248 Holly Grove Court Manassas VA 22110 RC Helicopters/Chesney Continued page 45 clear runway area turning Helicopter toward pit did notice someone pit running up behind tell air plane dead stick Thats distractionI crashed Helicopter avoid hitting person Another tip Keep assistant you fly can eyes ears concentrate flying similar happening shopping mall flying exhibition occurred crowd back pushed closer look Helicopter 30 feet up over head crowd front sides least 70 feet away did tail-rotor turn towards flew over head turned found myself face-toface crowd exhibition cleared hover demonstrations distraction led Helicopter accelerating fast forward flight over heads spectators crowd seemed pleased scared death An assistant would have handy security handling three sides crowd didnt control fourth use ropes now Although suspect Helicopters bore aggra vate some fixed-wing fliers uninitiated spectators hypnotized RC Helcopters will often come close possible Helicopter flight particularly true Heli copter hovered long periods time after pilot closeit must safe think RC Helicopters potentially dangerous pilot spectators surrounding obstacles other sport aircraft wont tell story about five cars hit learning fly Just call Ace consider Helicopters generally com patible other RC activities No suggest Helicopters banned RC AT LAST Hard Break Fibre-Filled Prop Size 10/6 Introductory Offer 6 495 12 900 24 1750 Postage paidClub Discounts Avail1 Send check money order ACCU-FLiTE 122 Model Aviation NEW FOURMOST PRODUCTS FUSELAGE FIXTURE FOURMOST FUSELAGE FIXTURE designed AatortaticaIIy align fuselage structures huilt strings measuring eveballing Srnply slide foot centering brackets track until align firewall tail joist two bulkheads Clamp fuselage together lightly rubberbands structure will straight track ccumm4t nuctu.uptofeuI.t RUBBER STRIP FAI RUBBER 4 out S flyoff 1979 World Championships used FAI RUBBER Made USA SIZES % 3/76 7/8 3132 1/76 1mm 042 thick SPOOLED GROSS WT 1-% 1- LBS PRICE $1250 first spool PPD US Additional spools $1250 NEW PIRELLI SIZES 6mm 5mm 4mm X 1mm PRICE $7500 first hank PPD US Additional spools $1450 Sole US Distributor World-Wide Sales Send 25 cents 1980 Catalog FAI Model Supply ~3957TorranceC0510 GIANT SCALE Al* QUARTER SCALE W13P00 BY POPULAR DEMAND SPANDAU & VICKEES PLAtTIC GUN KITS STANDARD PILOT COMPLETE WITH GOGGLES GNOME ROTARY ENGINE CYLINDESt VINTAGE GOLDEN AGE ASALLOON TIRE WHEELS Send $1 Illustrated Catalog WILLIAMS BROTHERS INC Dept MA 181 Pawnee Street -usfi San Marcos Calif 92069
Edition: Model Aviation - 1981/08
Page Numbers: 42, 43, 120, 122
Control Giant Scale Bob Beckman HOSTETLER PROJECTS first met Wendell Hostetler Toledo 1980 Since have corresponding fairly regular basis thought would interested last exchanges First letter response Dear Wendell Youre always coming up interesting things last letter contains men tion least three big Kioritz interest just little ago Dick called told bit about some engines looking hoping get chance look at least big Kioritz engines point have explain DIck refered Dick Roush Roush Manufacturing Dick custom basis converting some larger Kioritz engines aircraft use Note usues ci cubic inch Next touched another pet subjectsprops have long felt really arent putting enough prop engines what saw during engine tests seemed confirm mentioned 2 1-14 prop made made Would possible get try engines during tests finaly P6-E Please let take crack reviewing plans soon available hope have prototype Todelo look forward seeing Regards Bob reply interesting part Dear Bob Props also pet carve sand Giant Scale props has interesting made six props 37 Kioritz first three flutter problems made piece hard maple concluded verytnngs oig Hill Lountry Wally Hinker big man builds biggerhis Stoip Starlet half-scale Its perfect man whogvu nia r-oiuer uviii preflight examinatIon Scene doesnt want bend over prop engineury uai hying site OSAA Fly-in Plans reviewed month 42 Model Aviation portion theflight line spectatorarca atthe 1980 Hill Country Flyers Mammoth Scale Fly-in large hangar background isthe Wings & Wheels Museumits full fabulous old planes cars years edition scheduled Augusta 9 Thats special-order Roush Mfg 37 cu iuorltz nose Wendell Hostetlers Skybolt prop Wendells homemade 21 -1 4s since getting bigger approaching full scale should adopt full-scale practice laminating did second set three laminating eliminated flutter lam mattons 3/16-in thick have 22-14 a2014 4 have run 21-14 has flown would happy loan props could testing two days return promptly rpms props 37 ci follows 20-14 6500 21-14 6000 22-14 5200 experience 24 Kioritz has indi cated have using enough prop will turn between 7900 8000 ground pulls 26-lb Skybolt good authority 20-10 good estimation quite crisp have used 20-12 static thrust good flight performance equal other props plane does have constant speed its overall performance down bit present feeling keep diameter down pitch up line kept diameter down pitch up 37 Kioritz 37 Kioritz has carb front exhaust rear enclosed coil points magneto assembly needles very accessible adjustments running think arrangement neat went 40cc 24 ci 60cc 37 ci weight increase 5 oz have very pleased P6-E project. plane will formally introduced Toledo BR T&D Fiberglass will have one-piece cowl pants two pieces assembled Tom Keeling T&D made ones photo See last mont/is column BR T&D will also make gear aux fuel tank read close turns out Wendall agrees need prop us have using two ways put prop increase diameter increase pitch right three waysincrease both fourth way isnt obvious shape area blade havent seen Wendells props yet have told fairly wide wide blade can produce thrust narrow given rpm trick have thin yet efficient airfoil section blade prop can reach rpm experience engine test series Continued page 120 GET INTO THE AIR FAST Quick-Building Sport-Trainer Model Merchant ALLEY KAT An ideal low-wing aileron trainer Flies both B pattern 40 balsaThe thing plain about Jane name truly kit machine-cut parts everythingclassicaport-trainer shesgentle slow 15 needed complete WS 54 Areawilling performer 25 Builds no time perassembled fuse built-in motor mounts pre-shaped 800 Eng 35-46 Radio 3-4 Chcontrol-surfaces can order hercompletely pre Gompete instructions Price $5995built $8495 Span 51 Weight 3-4 lbs Eng 1 5-25 Radio 3-4 Ch Detailed instructions MR ZIP V2A Sport Trainer HOBBY COMMANDER Heres trainer character motor prop up high theVre easy start hard kill Large wing flatbottomed airfoil give extended flights hands-off landings Perfect com plete novice fun experienced flyer Ready-to-f iy just stew hours Span 45 Weight 20-25 oz Eng 049-051 E-Z FLYER Ideal first bipe Slow easy a35 hot 45 Fast construction fiberglass fuse pre-cut parts Formed gear hardware package full sized plans instructions WS 47 Area 730 Eng 25-45 Radio 3-4 ChannelPrice $5995 EAGLE 1 its pre-assembled fuselage sheet-foam wing construction techniques youll ready soar just few hours great trainer competition slope thermal performance Tow power assist Span 78 Weight 1 lb 2 os Wing Loading 78 az/sq ft Radio 2-3 ChannelPrice $3995 Ideal novice wants start off something little bigger All-Balsa kit comes machine-cut parts pre formed gear hardware Superior take-off landing characteristics WS 54 Area 600 sq 35-46 Radio 3-4 Channel Price $5995 Did know about selection sport competition airplanes Send SASE today free catalog iOC L If Local Dealer May Order Direct Send check money order 554 E FRONTON ST BROWNSVILLE TX 78520 512 541-3867 August1981 43 Runestrand props Quadra L-4U cirasahopper cigar safety device ash starts flick off knows hes too close prop PLANE JANE Sport K Finish international orange butyrate dope flattener added over silkspan complete fuselage top cockpit removeable access engine drive train Weldon has made electric retract mechanisms operational sprung landing gear legs reservoir supplies air bladder wheel brakes cockpit well detailed including operating hand cranks lowering side windows Unquestionably fine example Precision Scale Giant Scale class 18 lb Vito Tomeos scratch-built 1/6-scale Hawker Sea Fury first place winner Military Stand-off class seen 18 lb 77-in span model flight last years Nats Dennis Bryll placed second P-47 Thunderbolt Third place Stand-off winner anotherfamiliar plane having won first place 77 80 Nats P-6 1 Black Widow Roger Brennom 195 lb plane scratch-built Wylam drawings foam balsa construction Hobbypoxy finish Three hand-made nonretractable gear legs have two springs Roger has recently installed new OS 60 engines seems well-tried flying planes making appearance Toledo Non military Stand-off Scale Starduster Too Terry Williams awarded first place Team Selection proposal has made select three Scale Teams Seguin Nats F4C Radio Control F4B Control-line Stand-off Radio Control though nation making bid 1982 World Champ ionship has USSR have elected omit Stand-off RC being proposed basis another nation may make attractive bid 1982 would include Stand off RC preparations must made send team eventuality Therefore modelers wish have entries considered three classes must have FAI stamp AMA licenses must pay FAI entry fee addition Nats entry fee must enter model complies FAI rules should noted FAI designation event Stand-off RC Scale US called RC Sport Scale no other nation makes successful bid 1982 World Championship FAI plenary session December USSR bid accepted refunds FAI program entry fee will made AMA headquarters upon appli cation Sport Scale RC Nats contestants serious effort being made least other nation outbid USSR Stand-off RC can included present far popular Scale event nations except USSR certainly deserves World Cham pionship status Bob andDolly Wischer Rt 1 S-22lLapham Peak Roa4 Delafiel4 WI 53018 RC Aerobatics/Van Putte Continued page 41 7Z transmitter because great sticks convenient trim pot locations So made compromise bought Ace Silver Seven encoder kit replace Kraft encoder As usual Fred Marks has done fine job Ace developing kit instructions assembly adjustment troubleshooting Ace suggests experienced kit build ers attempt retrofit encoder another transmitter However Ive experience assembling Ace Royal servo kits trouble shooting servo problems building Royal re ceiver installing dual rate switches KP-7Z transmitter Consequently lam optimis tic half-vast experience will carry through job course intend thing instructions say thoroughly read what George Myers wrote column Silver Seven transmitter August 1980 is6ue Model Aviation things work out well youll hear about what great job did dont work out Ill probably forget mention Ron Van Putte 111 Sleepy Oaks Rd Fort Walton Beach FL 32548 RC Giant Scale/Beckman Continued page 43 indicates commercial props 18-10 size will deliver 20 25 lb thrust 8000 rpm Its no wonder prop pulls Wendells Skybolt good authority whole subject propellers has become fascinating hadnt really put much thought started engine project quickly became apparent testing props much engines variables involved impossible really cover everything properly space well have available going through tremendous learning process ourselves just hope will able pass along Plan reviews month reviewing two plans available Taylorcraft Ltd have around about two years first saw prototypes Bill Wendts Fokker DVIII Ken Runestrands L-4B Morgan Hill 1979 first Giant Scale Fly-in literaly overwhelmed new impressions information two birds stood out Bills DVIII built scale sounds odd US modelers 1 ft 1 meter alittlelessthan one-third scale Bill worked European drawings metric dimensions easier converting exact one-third scale plans three sheets approxi mately 3 ft 6 ft clear easily read contain fair amount detail dont have much detail control surface hinging control hook-up however dont have experience area youll need some help obvious aircraft designed big bangers mind Materials construc tion techniques rugged Basic structures spruce plywood some balsa mostly weight critical wing employs beautiful set box spars built up -in square spruce 1/32-in ply wing separates center both wing locking strut attachment systems ingenious simple effective plans show Quadra original flew nicely cowl will accept almost currently available engines building Bills plans change would make use foam-core board some ribs formers rudder elevator cores already know Im hooked foam-core L-4B Grasshopper ubiquitous Piper Cub uniform Painted olive drab cabin windows extended behind wing used throughout WW II liaison observation aircraft Kens plans unusual can used modify existing kit Nosen Balsa USA manner builder selects cuts materials work kit sure make material changes indicated Kens plans Continued page 122 120 Model Aviation job heresonethatwill 37 Cu engine develops almost 4 hp yet weighs pound over Quadra has power pull Byron Pitta straight upwithout prop reduction also takes no space Quadrait will fit entirely inside cowl Nosen D unexposed stripped chain-saw motor engine manufactured USA miniature aircraft use Comes complete ready run year 100% warranty OMPLETE MODIFIED 37 ENGINE Lnul I. r.at ramoivgq Senu .ct MO COD UPS Add $400 shipping & Ia SCALE DOCUIVIENTATION SCALE DRAWHOTOS eOCKLETS IP REPLA-TECH 191 INTERNATIONAL CATALOGS $200 4SEOO MC KENZIE HWY VIDA OREGON 974B9 Price 2995 K Miter Master Mite Master tool designed enable crafts man wake perfect loints wood accurately sanding pre-setangles Thesquaringfence{A aflowsforprecisegO angles retracts below surface Any angle can beset triangular guide using adjacent side complement angle will formed waking inoaluahle truss construction sew cyanuacrylate adhesines require accurately fitted joints achiene full strnngth Miter Master will enableyso wake thaw easily FOURMOST PRODUCTS 4040 24th Ave Forest Grove OR 97116 L-4B spans 110-in 1610 sq wing area projected 18 lb weight wing loading little over 15 lb/sq ft Quadra can deliver over 18 lb static thrust plane can real performer can certainly recommend both plans less-experienced Giant Scale builder flier available Taylorcraft Ltd 216 Willow Rd Roseville CA 95678 DVIII $2500 L-4B $1995 Plans review list plans reviewed keeps growing faster can keep up Add following list Super Cub Big Mach non-scale Anticlike design Biz Cap Plan Service 1408 Morris Saginaw MI 48601 Travelaire 2000 J B Special non-scale flyable biplane monoplane Behrens Plan Service 31-27 Healy Ave Far Rockway NY 11691 Waco YKS-6 Ryan SC Bob Morse Mammoth Scale Plans 3351 Pruneridge Ave Santa Clara CA 95051 FW 190 P-Si Bob Holman Plans P0 Box 741 San Bernardino CA 92402 P6-E Wendell Hostetler 1041 Heatherwood Lane Orrville OH 44667 Christen Eagle T&D Fiberglass 30926 APrice $750 Assembled booed 503 357-2732 Block Garden City MI 48135 SE-5 Baby Air Design 549 Appian Way Napoleon OH 43545 Waco HKS-7 Norm Rosenstock 94 Cedar Dr Plainview NY 11803 Fly-in dates some Giant Scale fly-ins have scheduled along contact further information August 8 & 9 Three Rivers Airport Jim Susemihl 240 South Main Three Rivers MI 49093 616 273-8036 August 15 & 16 Bayport Aerodrome Long Island NY Pete Polapink 516 585-7013 after 600 pm August 30 Oshkosh WI Hubert Ziebell 338 W 20th st Oshkosh WI 54901 October 8 II 5th Annual QSAA Flyin Pat Bunker 6532 Bourbon Way Las Vegas NV 89107 October17 & 18 IMAA East Coast Regional Fort Meade MD Ill pass details available BIG Big Bangers As mentioned above Roush Manufacturing offering some Super Engines up 56 cu displacement engines come out new Echo-Kioritz professional chainsaws covered limited warranty Currently three engines available direct special-orderbasis a39 ci a48 ci 56 ci Power output ranges 55 hp 85 hp Although quality performance engines high prices 48 example will set back about $450 interested write Roush Mfg P0 Box 251 Sandyville OH 44671 want point out large engines intended special applications kind Giant Scale aircraft would require kind power doesnt belong average flying field personal feeling 4 ci 40 lb reasonable limits 9944% models Bob Beckman 8248 Holly Grove Court Manassas VA 22110 RC Helicopters/Chesney Continued page 45 clear runway area turning Helicopter toward pit did notice someone pit running up behind tell air plane dead stick Thats distractionI crashed Helicopter avoid hitting person Another tip Keep assistant you fly can eyes ears concentrate flying similar happening shopping mall flying exhibition occurred crowd back pushed closer look Helicopter 30 feet up over head crowd front sides least 70 feet away did tail-rotor turn towards flew over head turned found myself face-toface crowd exhibition cleared hover demonstrations distraction led Helicopter accelerating fast forward flight over heads spectators crowd seemed pleased scared death An assistant would have handy security handling three sides crowd didnt control fourth use ropes now Although suspect Helicopters bore aggra vate some fixed-wing fliers uninitiated spectators hypnotized RC Helcopters will often come close possible Helicopter flight particularly true Heli copter hovered long periods time after pilot closeit must safe think RC Helicopters potentially dangerous pilot spectators surrounding obstacles other sport aircraft wont tell story about five cars hit learning fly Just call Ace consider Helicopters generally com patible other RC activities No suggest Helicopters banned RC AT LAST Hard Break Fibre-Filled Prop Size 10/6 Introductory Offer 6 495 12 900 24 1750 Postage paidClub Discounts Avail1 Send check money order ACCU-FLiTE 122 Model Aviation NEW FOURMOST PRODUCTS FUSELAGE FIXTURE FOURMOST FUSELAGE FIXTURE designed AatortaticaIIy align fuselage structures huilt strings measuring eveballing Srnply slide foot centering brackets track until align firewall tail joist two bulkheads Clamp fuselage together lightly rubberbands structure will straight track ccumm4t nuctu.uptofeuI.t RUBBER STRIP FAI RUBBER 4 out S flyoff 1979 World Championships used FAI RUBBER Made USA SIZES % 3/76 7/8 3132 1/76 1mm 042 thick SPOOLED GROSS WT 1-% 1- LBS PRICE $1250 first spool PPD US Additional spools $1250 NEW PIRELLI SIZES 6mm 5mm 4mm X 1mm PRICE $7500 first hank PPD US Additional spools $1450 Sole US Distributor World-Wide Sales Send 25 cents 1980 Catalog FAI Model Supply ~3957TorranceC0510 GIANT SCALE Al* QUARTER SCALE W13P00 BY POPULAR DEMAND SPANDAU & VICKEES PLAtTIC GUN KITS STANDARD PILOT COMPLETE WITH GOGGLES GNOME ROTARY ENGINE CYLINDESt VINTAGE GOLDEN AGE ASALLOON TIRE WHEELS Send $1 Illustrated Catalog WILLIAMS BROTHERS INC Dept MA 181 Pawnee Street -usfi San Marcos Calif 92069
Edition: Model Aviation - 1981/08
Page Numbers: 42, 43, 120, 122
Control Giant Scale Bob Beckman HOSTETLER PROJECTS first met Wendell Hostetler Toledo 1980 Since have corresponding fairly regular basis thought would interested last exchanges First letter response Dear Wendell Youre always coming up interesting things last letter contains men tion least three big Kioritz interest just little ago Dick called told bit about some engines looking hoping get chance look at least big Kioritz engines point have explain DIck refered Dick Roush Roush Manufacturing Dick custom basis converting some larger Kioritz engines aircraft use Note usues ci cubic inch Next touched another pet subjectsprops have long felt really arent putting enough prop engines what saw during engine tests seemed confirm mentioned 2 1-14 prop made made Would possible get try engines during tests finaly P6-E Please let take crack reviewing plans soon available hope have prototype Todelo look forward seeing Regards Bob reply interesting part Dear Bob Props also pet carve sand Giant Scale props has interesting made six props 37 Kioritz first three flutter problems made piece hard maple concluded verytnngs oig Hill Lountry Wally Hinker big man builds biggerhis Stoip Starlet half-scale Its perfect man whogvu nia r-oiuer uviii preflight examinatIon Scene doesnt want bend over prop engineury uai hying site OSAA Fly-in Plans reviewed month 42 Model Aviation portion theflight line spectatorarca atthe 1980 Hill Country Flyers Mammoth Scale Fly-in large hangar background isthe Wings & Wheels Museumits full fabulous old planes cars years edition scheduled Augusta 9 Thats special-order Roush Mfg 37 cu iuorltz nose Wendell Hostetlers Skybolt prop Wendells homemade 21 -1 4s since getting bigger approaching full scale should adopt full-scale practice laminating did second set three laminating eliminated flutter lam mattons 3/16-in thick have 22-14 a2014 4 have run 21-14 has flown would happy loan props could testing two days return promptly rpms props 37 ci follows 20-14 6500 21-14 6000 22-14 5200 experience 24 Kioritz has indi cated have using enough prop will turn between 7900 8000 ground pulls 26-lb Skybolt good authority 20-10 good estimation quite crisp have used 20-12 static thrust good flight performance equal other props plane does have constant speed its overall performance down bit present feeling keep diameter down pitch up line kept diameter down pitch up 37 Kioritz 37 Kioritz has carb front exhaust rear enclosed coil points magneto assembly needles very accessible adjustments running think arrangement neat went 40cc 24 ci 60cc 37 ci weight increase 5 oz have very pleased P6-E project. plane will formally introduced Toledo BR T&D Fiberglass will have one-piece cowl pants two pieces assembled Tom Keeling T&D made ones photo See last mont/is column BR T&D will also make gear aux fuel tank read close turns out Wendall agrees need prop us have using two ways put prop increase diameter increase pitch right three waysincrease both fourth way isnt obvious shape area blade havent seen Wendells props yet have told fairly wide wide blade can produce thrust narrow given rpm trick have thin yet efficient airfoil section blade prop can reach rpm experience engine test series Continued page 120 GET INTO THE AIR FAST Quick-Building Sport-Trainer Model Merchant ALLEY KAT An ideal low-wing aileron trainer Flies both B pattern 40 balsaThe thing plain about Jane name truly kit machine-cut parts everythingclassicaport-trainer shesgentle slow 15 needed complete WS 54 Areawilling performer 25 Builds no time perassembled fuse built-in motor mounts pre-shaped 800 Eng 35-46 Radio 3-4 Chcontrol-surfaces can order hercompletely pre Gompete instructions Price $5995built $8495 Span 51 Weight 3-4 lbs Eng 1 5-25 Radio 3-4 Ch Detailed instructions MR ZIP V2A Sport Trainer HOBBY COMMANDER Heres trainer character motor prop up high theVre easy start hard kill Large wing flatbottomed airfoil give extended flights hands-off landings Perfect com plete novice fun experienced flyer Ready-to-f iy just stew hours Span 45 Weight 20-25 oz Eng 049-051 E-Z FLYER Ideal first bipe Slow easy a35 hot 45 Fast construction fiberglass fuse pre-cut parts Formed gear hardware package full sized plans instructions WS 47 Area 730 Eng 25-45 Radio 3-4 ChannelPrice $5995 EAGLE 1 its pre-assembled fuselage sheet-foam wing construction techniques youll ready soar just few hours great trainer competition slope thermal performance Tow power assist Span 78 Weight 1 lb 2 os Wing Loading 78 az/sq ft Radio 2-3 ChannelPrice $3995 Ideal novice wants start off something little bigger All-Balsa kit comes machine-cut parts pre formed gear hardware Superior take-off landing characteristics WS 54 Area 600 sq 35-46 Radio 3-4 Channel Price $5995 Did know about selection sport competition airplanes Send SASE today free catalog iOC L If Local Dealer May Order Direct Send check money order 554 E FRONTON ST BROWNSVILLE TX 78520 512 541-3867 August1981 43 Runestrand props Quadra L-4U cirasahopper cigar safety device ash starts flick off knows hes too close prop PLANE JANE Sport K Finish international orange butyrate dope flattener added over silkspan complete fuselage top cockpit removeable access engine drive train Weldon has made electric retract mechanisms operational sprung landing gear legs reservoir supplies air bladder wheel brakes cockpit well detailed including operating hand cranks lowering side windows Unquestionably fine example Precision Scale Giant Scale class 18 lb Vito Tomeos scratch-built 1/6-scale Hawker Sea Fury first place winner Military Stand-off class seen 18 lb 77-in span model flight last years Nats Dennis Bryll placed second P-47 Thunderbolt Third place Stand-off winner anotherfamiliar plane having won first place 77 80 Nats P-6 1 Black Widow Roger Brennom 195 lb plane scratch-built Wylam drawings foam balsa construction Hobbypoxy finish Three hand-made nonretractable gear legs have two springs Roger has recently installed new OS 60 engines seems well-tried flying planes making appearance Toledo Non military Stand-off Scale Starduster Too Terry Williams awarded first place Team Selection proposal has made select three Scale Teams Seguin Nats F4C Radio Control F4B Control-line Stand-off Radio Control though nation making bid 1982 World Champ ionship has USSR have elected omit Stand-off RC being proposed basis another nation may make attractive bid 1982 would include Stand off RC preparations must made send team eventuality Therefore modelers wish have entries considered three classes must have FAI stamp AMA licenses must pay FAI entry fee addition Nats entry fee must enter model complies FAI rules should noted FAI designation event Stand-off RC Scale US called RC Sport Scale no other nation makes successful bid 1982 World Championship FAI plenary session December USSR bid accepted refunds FAI program entry fee will made AMA headquarters upon appli cation Sport Scale RC Nats contestants serious effort being made least other nation outbid USSR Stand-off RC can included present far popular Scale event nations except USSR certainly deserves World Cham pionship status Bob andDolly Wischer Rt 1 S-22lLapham Peak Roa4 Delafiel4 WI 53018 RC Aerobatics/Van Putte Continued page 41 7Z transmitter because great sticks convenient trim pot locations So made compromise bought Ace Silver Seven encoder kit replace Kraft encoder As usual Fred Marks has done fine job Ace developing kit instructions assembly adjustment troubleshooting Ace suggests experienced kit build ers attempt retrofit encoder another transmitter However Ive experience assembling Ace Royal servo kits trouble shooting servo problems building Royal re ceiver installing dual rate switches KP-7Z transmitter Consequently lam optimis tic half-vast experience will carry through job course intend thing instructions say thoroughly read what George Myers wrote column Silver Seven transmitter August 1980 is6ue Model Aviation things work out well youll hear about what great job did dont work out Ill probably forget mention Ron Van Putte 111 Sleepy Oaks Rd Fort Walton Beach FL 32548 RC Giant Scale/Beckman Continued page 43 indicates commercial props 18-10 size will deliver 20 25 lb thrust 8000 rpm Its no wonder prop pulls Wendells Skybolt good authority whole subject propellers has become fascinating hadnt really put much thought started engine project quickly became apparent testing props much engines variables involved impossible really cover everything properly space well have available going through tremendous learning process ourselves just hope will able pass along Plan reviews month reviewing two plans available Taylorcraft Ltd have around about two years first saw prototypes Bill Wendts Fokker DVIII Ken Runestrands L-4B Morgan Hill 1979 first Giant Scale Fly-in literaly overwhelmed new impressions information two birds stood out Bills DVIII built scale sounds odd US modelers 1 ft 1 meter alittlelessthan one-third scale Bill worked European drawings metric dimensions easier converting exact one-third scale plans three sheets approxi mately 3 ft 6 ft clear easily read contain fair amount detail dont have much detail control surface hinging control hook-up however dont have experience area youll need some help obvious aircraft designed big bangers mind Materials construc tion techniques rugged Basic structures spruce plywood some balsa mostly weight critical wing employs beautiful set box spars built up -in square spruce 1/32-in ply wing separates center both wing locking strut attachment systems ingenious simple effective plans show Quadra original flew nicely cowl will accept almost currently available engines building Bills plans change would make use foam-core board some ribs formers rudder elevator cores already know Im hooked foam-core L-4B Grasshopper ubiquitous Piper Cub uniform Painted olive drab cabin windows extended behind wing used throughout WW II liaison observation aircraft Kens plans unusual can used modify existing kit Nosen Balsa USA manner builder selects cuts materials work kit sure make material changes indicated Kens plans Continued page 122 120 Model Aviation job heresonethatwill 37 Cu engine develops almost 4 hp yet weighs pound over Quadra has power pull Byron Pitta straight upwithout prop reduction also takes no space Quadrait will fit entirely inside cowl Nosen D unexposed stripped chain-saw motor engine manufactured USA miniature aircraft use Comes complete ready run year 100% warranty OMPLETE MODIFIED 37 ENGINE Lnul I. r.at ramoivgq Senu .ct MO COD UPS Add $400 shipping & Ia SCALE DOCUIVIENTATION SCALE DRAWHOTOS eOCKLETS IP REPLA-TECH 191 INTERNATIONAL CATALOGS $200 4SEOO MC KENZIE HWY VIDA OREGON 974B9 Price 2995 K Miter Master Mite Master tool designed enable crafts man wake perfect loints wood accurately sanding pre-setangles Thesquaringfence{A aflowsforprecisegO angles retracts below surface Any angle can beset triangular guide using adjacent side complement angle will formed waking inoaluahle truss construction sew cyanuacrylate adhesines require accurately fitted joints achiene full strnngth Miter Master will enableyso wake thaw easily FOURMOST PRODUCTS 4040 24th Ave Forest Grove OR 97116 L-4B spans 110-in 1610 sq wing area projected 18 lb weight wing loading little over 15 lb/sq ft Quadra can deliver over 18 lb static thrust plane can real performer can certainly recommend both plans less-experienced Giant Scale builder flier available Taylorcraft Ltd 216 Willow Rd Roseville CA 95678 DVIII $2500 L-4B $1995 Plans review list plans reviewed keeps growing faster can keep up Add following list Super Cub Big Mach non-scale Anticlike design Biz Cap Plan Service 1408 Morris Saginaw MI 48601 Travelaire 2000 J B Special non-scale flyable biplane monoplane Behrens Plan Service 31-27 Healy Ave Far Rockway NY 11691 Waco YKS-6 Ryan SC Bob Morse Mammoth Scale Plans 3351 Pruneridge Ave Santa Clara CA 95051 FW 190 P-Si Bob Holman Plans P0 Box 741 San Bernardino CA 92402 P6-E Wendell Hostetler 1041 Heatherwood Lane Orrville OH 44667 Christen Eagle T&D Fiberglass 30926 APrice $750 Assembled booed 503 357-2732 Block Garden City MI 48135 SE-5 Baby Air Design 549 Appian Way Napoleon OH 43545 Waco HKS-7 Norm Rosenstock 94 Cedar Dr Plainview NY 11803 Fly-in dates some Giant Scale fly-ins have scheduled along contact further information August 8 & 9 Three Rivers Airport Jim Susemihl 240 South Main Three Rivers MI 49093 616 273-8036 August 15 & 16 Bayport Aerodrome Long Island NY Pete Polapink 516 585-7013 after 600 pm August 30 Oshkosh WI Hubert Ziebell 338 W 20th st Oshkosh WI 54901 October 8 II 5th Annual QSAA Flyin Pat Bunker 6532 Bourbon Way Las Vegas NV 89107 October17 & 18 IMAA East Coast Regional Fort Meade MD Ill pass details available BIG Big Bangers As mentioned above Roush Manufacturing offering some Super Engines up 56 cu displacement engines come out new Echo-Kioritz professional chainsaws covered limited warranty Currently three engines available direct special-orderbasis a39 ci a48 ci 56 ci Power output ranges 55 hp 85 hp Although quality performance engines high prices 48 example will set back about $450 interested write Roush Mfg P0 Box 251 Sandyville OH 44671 want point out large engines intended special applications kind Giant Scale aircraft would require kind power doesnt belong average flying field personal feeling 4 ci 40 lb reasonable limits 9944% models Bob Beckman 8248 Holly Grove Court Manassas VA 22110 RC Helicopters/Chesney Continued page 45 clear runway area turning Helicopter toward pit did notice someone pit running up behind tell air plane dead stick Thats distractionI crashed Helicopter avoid hitting person Another tip Keep assistant you fly can eyes ears concentrate flying similar happening shopping mall flying exhibition occurred crowd back pushed closer look Helicopter 30 feet up over head crowd front sides least 70 feet away did tail-rotor turn towards flew over head turned found myself face-toface crowd exhibition cleared hover demonstrations distraction led Helicopter accelerating fast forward flight over heads spectators crowd seemed pleased scared death An assistant would have handy security handling three sides crowd didnt control fourth use ropes now Although suspect Helicopters bore aggra vate some fixed-wing fliers uninitiated spectators hypnotized RC Helcopters will often come close possible Helicopter flight particularly true Heli copter hovered long periods time after pilot closeit must safe think RC Helicopters potentially dangerous pilot spectators surrounding obstacles other sport aircraft wont tell story about five cars hit learning fly Just call Ace consider Helicopters generally com patible other RC activities No suggest Helicopters banned RC AT LAST Hard Break Fibre-Filled Prop Size 10/6 Introductory Offer 6 495 12 900 24 1750 Postage paidClub Discounts Avail1 Send check money order ACCU-FLiTE 122 Model Aviation NEW FOURMOST PRODUCTS FUSELAGE FIXTURE FOURMOST FUSELAGE FIXTURE designed AatortaticaIIy align fuselage structures huilt strings measuring eveballing Srnply slide foot centering brackets track until align firewall tail joist two bulkheads Clamp fuselage together lightly rubberbands structure will straight track ccumm4t nuctu.uptofeuI.t RUBBER STRIP FAI RUBBER 4 out S flyoff 1979 World Championships used FAI RUBBER Made USA SIZES % 3/76 7/8 3132 1/76 1mm 042 thick SPOOLED GROSS WT 1-% 1- LBS PRICE $1250 first spool PPD US Additional spools $1250 NEW PIRELLI SIZES 6mm 5mm 4mm X 1mm PRICE $7500 first hank PPD US Additional spools $1450 Sole US Distributor World-Wide Sales Send 25 cents 1980 Catalog FAI Model Supply ~3957TorranceC0510 GIANT SCALE Al* QUARTER SCALE W13P00 BY POPULAR DEMAND SPANDAU & VICKEES PLAtTIC GUN KITS STANDARD PILOT COMPLETE WITH GOGGLES GNOME ROTARY ENGINE CYLINDESt VINTAGE GOLDEN AGE ASALLOON TIRE WHEELS Send $1 Illustrated Catalog WILLIAMS BROTHERS INC Dept MA 181 Pawnee Street -usfi San Marcos Calif 92069