Radio Control Giant Scale Bob Beckman NOSTALGIA TIME early Fifties living San Francisco area RC activities centered around Ed Rockwood multi-channel reed system Alex Schneider become three-time Nats winner proficient builder/flier local group Alexs planes much-modified versions seven-foot-span Capital kit Piper Cub first reed radio model built Alexs rough draw ings lot people interested building model especially after won Nationals rough drawings werent really construction plans Alexs permission drew up set plans As remember made few structural changes outlines aerodynamics unchanged mid-Fifties selling plans $395 postpaid corre sponds about $3950 today dont remember sold wasnt enough make money Im sure broke deal few sets plans however got out parts country Later moves everything inked linen originals lost wound up intact copy myself Recently Wes Delong Toledo OH got touch few bought plans built models interested getting set plans lost also re-drafting still hadnt dug out cut-up set still have found complete unused set biggest problem rolled up 30 years Wes plans reproduci ble copy has promised set new plans Id love build another Cub just old times sake before finish Sparrowhawk Walrus Giant Scale Most com panies supply materials accesso ries hobby owned operated modelers fact things depend building efforts available us because some other modeler needed figured out make kept making enough rest us Almost exception people outstanding modelers own right Bob Siegelkoff CR Associates prime example Bob has modeling almost long have reason say almost long wont admit being old am Well nobodys old items CR provides us something Bob time another needed couldnt find made kept making month Ive got couple pic tures Bobs latest modeling project Vickers Armstrong Walrus pro duced 1935 awk ward fascinating military designs spanned time between WW WW II meant patrol obser vation aircraft time tried out dive bomber story after few tests idea dropped because no could decide would cause damagethe bomb sight sound thing dive plans 1A-scale model drawn Bob Morse wingspan 90 design weight 29 32 lb Although installed pictures taken functional retract gear has designed built photos show Saito Twin installed engine pod will replaced OS five-cylinder radial before first flights model currently complete except covering finish Ill try have flight shots time comes Sparrowhawk project pictures month Sparrowhawk fuse lage framework still pinned down bench first picture took sometime 1979 As can see pretty bad ways picture framework Mortimer looking picture got inter ested learning something about photog raphy turn led lot things goodbut also lot fact Sparrowhawk yet finished main reason include picture want talk about use gussets look close will see lot gussets pic Vickers Armstrong Walrus 1935 British amphibious patrol plane Bob Siegeikoff modeling Saito Twin 4cycie powerpiant will replaced 5cyiinder OS 4cycle before first flight Bob awaits firstflight photos 56 Model Aviation GIant Scaie30 years ago Wes Delong sent photo himself 7-ft-span Piper Cub Model built Alex Schneiders piens used Rockwell muitchannei reed-type radio powered Anderson Spitfire 60 2-speed ignition ture point project complete construction aircraft pret ty well planned mind enough down paper rough drawings could start actual building fuse lage framework sides built top other just like used build rubber models 50 years ago time though instead A-in square balsa used A-in square spruce gussets added side before sides removed board other side turned over before gusseting wound up right left side picture sides have pinned down over top view frame work top bottom cross pieces have added Note frame work upside down point LIGHT TO~OL look closely can see gussets have installed bottom frame work After everything set up framework unpinned turned over gussets added along top Okay whats gussets did go trouble matter what gussets Checking dictionary came up Gusset bracket plate used reinforce joints structure use gussets model building reinforce strengthen joints built-up fuselage frame like just bunch sticks glued together butt joints butt joints arent strongest world right kind gussets can increase strength butt joint factor five 10 get better idea gussets PO BOX 5387 SPRINGFIELD ILLINOIS 62705 should work what right kind gussets lets take close look butt joints framework side framework consists top bottom longeron vertical members maintaining spacing between longerons addition diagonal members add rigidity help distribute shock loads vertical pieces butt-joined longerons glue holding vertical spacer longe ron little patch glue has two pretty important things has keep longeron moving out away other longeron has keep ver tical spacer moving sideways would let longerons get closer togeth er Thats big job little square Continued page 155 Phone 217 7877811 Hours 10am 6pm MondaySaturday MasterCard VISA welcome Send cashiers check money order immediate processing HOBBIES via UPS Add $300 postage handling Add $500 charge card COD orders deliveries made Prices subject change notice MODEL KITS AIATRONIcS SAGITTA 9008595 SAGITTA 600sags OLYMPIC II5495 OLYMPIC 6503090 IRIDI AIRCRUISER 252190 AIRCRUISER6O3995 EU-iIsis EX-2 100 2390 KRAPTY 25 2495 KRAP1Y004295 LOADSTAR4O4290 WARLOAD 40 3795 GYRO loelcAis 500 racetl 2795 4-SEASONS4S3290 THEOLPAl-rERN5595 BREZEE SIPE 4995 TRAINERKRAFT4O2990 VAGABOND 40 3995 COVERITE GEE BEE SPORTOTER 5595 THEJEEP 5996 GEE SEE E seoS GREAT PLANES SUPER SPORTOTER 40 5990 SPORTOTER SIPEod 6195 SUPER SPORTSTER50 8299 CAP2160 9095 GOLDBERG JR TIGER 3995 SKY TIGER 4295 EAGLE 63 4295 FALCON 56 3395 SR FALCON 5995 JR FALCON 1995 SKYLARK56MKII 3995 SKYLANE62 4595 CURTIS PIAWE 3998 RANGER42IARFI 2495 GENTLE LADY 1996 BOB MARTIN MODELS ROUSE OF BALSAI 2 4 1395 206 1795 TOTEXAN 2195 1/4SCALEPETE 12495 F90DUCTED FAN 12495 P51-405IZEGLASS 9595 P51-405IZESALSA 4195 PIENTENPOL 3496 COYOTE 5295 KATIE II 4295 5679595 SUPER GRYPHON5095 HOBIEHAWK13995 1/Dy P51 MUSTANG1998 II3APOCKEWOLFE1S95 1I2ASONANZA1895 1l2AME1001595 1I2APETE1895 1/2ACHIPMUNK1695 TWO TEE1795 MARIES MODELS SCORPION IV3295 MIRAGE3495 WANDERER 993495 SUSHWACKERDoss SUNNY2595 HONKER SIPE2396 HONKER 1/21996 LIL GYPSY2296 PInS3595 MINI BIRD OF TIME2695 SENSOR9596 PHANTOM5395 AMERICAN EAGLE2995 P472 RAZORBACK9195 FUN COBRA2996 FUN MUSTANG2995 HELLCAT9595 19009 FW9595 PT154995 P5124995 M51594324995 CORSAIR7495 ATS4995 MIDWEST DAS BIPE STICK3995 SWEETS LOW3995 GIANT SWEET N LOW9595 LAZY BIRD3095 SOARER2595 PIPERCUBIIoanrI2796 BEERCAT3995 T-CRAPT3595 PAflERNMASTER3795 DAS LIL STICK2495 SUPER SWEET STICK4195 CESSNA CARDINAL2495 SUPER CHIPMUNK2496 HEINKEL4495 SWEET STICK 403995 SILENT SOSIRE2795 ATTACKER3995 TWINSTICKTRAINER3196 CHAMPION MK II2595 PERFORMER1996 JETSTER2S3196 PITiS SPECIAL6996 AOl Iducted lanI2395 PICA SPITFIRE9295 P001902-S7295 CESSNA1S2rsss SUCKER JUNOMEISTER7995 SHOOFLI5296 TOUCHE4195 JACK STAFFORD TOM KITTY 40IIoerrrI3795 TOM KIlT MK403995 TWIN COMANCHE9395 624 LIBERATOR12995 P394796 SUPER BUCCANEER2795 SUPER BUCCANEERIIOanrI2995 AIRCOUPE5995 CHIPMUNK5995 EAAACROSPORT5095 EAAACROSPORTIIoanrI5095 SIG ASTRO HOG4995 KOBRA2995 PIPER J 33795 PIPER CUB 114S15695 CLIPPEDWINOCUB3795 CLIPPEDWINGCUB1/4scale . 9596 RISER1995 HUMMER1695 KAVALIER3995 KIWI3995 COLT2395 DOUBLER II2595 CITABRIA5995 LISERTY SPORT6595 SMITH MINI PLANE4995 RYAN STA7495 ZLIN ACROBAT5395 KADET MK II3295 KADETJR2495 SKY BOLT5795 KOUGAR MEl3795 ELIPPER2195 SUPER SPORT2196 450 MUSTANG39B5 KOMET BALSA5695 KOMET PLY6295 KOMANDERMKII4195 BONANZA9196 SCAMP2295 KING KOBRA4995 EWIK BUILTS P516395 CESSNA 1506495 SUPER CHIPMUNK5995 CESSNA 1720995 ROYAL HIENSR11595 ZERO SR ASMS9195 SPITFIRE SR8796 CORSAIR SR P40109095 OSCAR SR 01439595 7W 19090BS FOPSEARCAT9095 P51 D9795 STUKA9595 ME 1099755 CESSNA 182. 9095 PIPER COLT 599095 SPIRITOPSY LOUIS10398 PITISLILSTINKER9096 PIflS S29795 STAGGERWING9796 CESSNADUK9796 P4J PHANTOM9595 TOPPL lYE ELDER3195 ANTARES GLIDER6495 HOT KANARY4695 SESA5095 HEADMASTER 454495 ZERO6595 J3 CUB6795 CONTENDER4155 CONTENDER 403995 PRESSMAN TRAINER3595 P51 MUSTANG 5795 PAD WARHAWK 6295 P39AIRCOBRA 5795 P47THUNDERBOLT 9595 CORSAIR 9596 BEARCAT POP 9595 METRICK 3695 OTHER KITS AVAILABLE AT COMPARABLE PRICES ACCESSORY COMPLETION KITS rrred shopping br hardware oIler custom I lot krl accessorIes required complete model spRUrarly grouped ucroenienl sit lorm allow low prroes Accessories also acailaSle separately ENGINES 02 MAX wIMeIlls, 10 PSR 6/C 3095 tSR/C 3595 2ORIC 3295 25 6/C 2395 25 FOR RIC 4995 25 PSR 6/C ABC 5595 28709 6/C 5795 28 FSR RIC C 9096 30R/C 2595 356/C 3995 40 6/C 5796 40PSR 6/C 6296 40 PSR 6/C ABC 6995 4SPSR RIC 9595 45 PSR 6/C ABC 9995 50PSR 9/C 5295 6tFSR6/C 90BS El FSRRICABC 11595 907S6 6/C 13395 108 FOR 6/C 13695 FT12OTWIN 36595 PS4D 4CYCLE 9595 70514-CYCLE 12295 70504-CYCLE 14295 PS 1254CYCLE SINGLE 17995 ENYA 705 ENGINES Also Auai/aS/e RADIOS FUTABA RADIOS Prices aca/laSle opec requesll 4 70 in/a SERVOS 6 PG mId SERVOS 8 SGH eu/A SERVOS O P0K w/4 SER AM 5 PGK 0u14 SER FM 6 70K w14 SER AM 6 P0K w14 SER FM 7 FGK mId SER AM 7 70K ovId SER PM PLUS. GAS TANKS COVERING MATERIALS OH SSIV ES PROPS GLOW PLUGS ACYCLE GLOW PLUGS HARDWARE WHEELS April 1985 57 Bob almost ashamed show photo left taken very early stages photographic efforts however wants show examples use gussets strengthen model structure Hed just started Sparrowhawk Two things have progressed photo right Sparrowhawk Bobs photographic prowess framework has now fleshed out lightweight foamoore formers light stringers Note Ioadbearing formers heavy plywood RC Giant Scale/Beckman Continued page 57 glue especially consider stresses will see rough landing point seems obvious want get some glue working us joint Some people try using big globs glue fill cor ners two pieces meet adds weight strength since glue designed hold two pieces something else together itself very strong Dont make mistake think ing what just said doesnt apply epoxy does What needed crease total area glued joint Thats gussets come Take another look definition gusset talks about bracket plate. implies least two types gussets applica tion bracket corresponds piece material fitted glued angles between two structural members plate flat piece material glued surface both members spanning joint pictures can see gussets plate type Bracket fill-in type gussets have uses cases prefer plates mind fill-ins have two strikes against First trying get maximum glued area should thick structural members case t balsa would indicated Second joint requires least two sometimes three four carefully-fitted pieces Thats lot time-consuming work plates other hand piece per joint needed little fitting required Plates can quite thin since gluing area surface edge course material used must have good tensile strength favorite 42-in plywood has strength needed application can easily cut pair scissors took about two minutes prepare gussets Sparrowhawk used combination square draw bunch one-inch squares 6 x 12-in sheet plywood drew diagonals through squares easy job 450 head combination square cut Out triangular gussets scissors few rectangular pieces needed done just easily Youll note gussets outside framework gives maximum strength least amount work Since formers needed final fuselage shape simply included thickness gussets cutting formers fit framework sometimes case framework itself outer surface fuselage might want have gussets show ing case might want use bracket fill-in type gusset Plates can used inside framework have some real dis * TPLANS * AR Baby 7j Especially Turn-around thi 850 sq 120 9 cycle powered Ron Chidgey design smooth solid performer Rib templates computer plotted Plans construction hints $1190 TIGER TAIL 4 Ron Chidgeys latest best series little larger lighter slower retains honest flight characteristics its predecess ors Plans construction hints WELLER 3 BLADE FIBERGLASS PROP Proven ih Nats Interna tional competition 7319 $2000 IVANS MAGIC GADGET protractor device used Ivan Krletensen accurately measu-e aileron elevator arfd rucder throw Takes guess work Out trimming Out airplane quality tool complete instructions log book carrying case SEE YOUR DEALER OR OREItK DIRECT advantages first completely internal gusset arrangement can reinforce plane struc ture corner example could use internal plate gussets strengthen sides framework would have use either external plates brackets reinforce top bottom points crossmembers line vertical members final point Ive often seen gussets shown sections circles dont see advantage same size gusset difference gluing area significant compared work involved second Sparrowhawk picture month shows final rigid gusseted framework fleshed out lightweight formers stringers also shows that time making some progress responding advertisers mention read about Model Aviation WING TUBE & SOCKETS Aluminum alloy tubing plugin wings Included pair special slipfit phenolic sockets build wing structure Now size models 7/8 die x 2 0 1j dia x2 $895 11 dia x 3 5 ENGINE SLEEVE BEARING PULLER Pull tight sleeves bearings easily damage new 99s 17MM rea bearing Both SLEEVE- $795for TRANSMITTER CASE An inexpensive molded case protect eapenslve transmitter two stick single transmittersBrown1w grain aluminum trim ano locking clasp $1695 Qatar WC Products GP 3713 Pompano Drive Pensacola FL 325111 Phone 9011 11768639 INCLUbE 9100 PER ITEM FOR UPS photography learned little about backgrounds focus still long way go lighting composition Bob Beckman 8248 Holly Grove Ct Manass VA 22110 RC Pylon Racing/Hager Continued page 58 checked again Well some changes some props noted testing props noticed some seemed have airflow behind others So checked pitch see What found out didnt seem right lower-pitch prop turning same rpm higher-pitch prop equal diameter shouldnt have airflow other So started thinking could measure differ ence saying its wood system used easy make simple come round cardboard tube roll ZLIN Z50-L K Brand New hot new per former gives everything demand model Strong lightweight balsa ply construc tion easy buildl Fuel tank hardware included 60 90 two stroke 90 120 four stroke engines BASIC KIT S 1199569Z/3 wing span 844 sq wing area 80% ASSEMBLED 53250075 88 lbs WE GIVE YOU THE GREATEST VALUE fl33gORDER TOLL FREE 8007820022 CI3AI*5 SERVICE & INFORMATION 702-7320022 3132 So Highland Drive Las Vegas Nevada 89109 Send $150 catalog Refunded first purchase April1985 155
Edition: Model Aviation - 1985/04
Page Numbers: 56, 57, 155
Radio Control Giant Scale Bob Beckman NOSTALGIA TIME early Fifties living San Francisco area RC activities centered around Ed Rockwood multi-channel reed system Alex Schneider become three-time Nats winner proficient builder/flier local group Alexs planes much-modified versions seven-foot-span Capital kit Piper Cub first reed radio model built Alexs rough draw ings lot people interested building model especially after won Nationals rough drawings werent really construction plans Alexs permission drew up set plans As remember made few structural changes outlines aerodynamics unchanged mid-Fifties selling plans $395 postpaid corre sponds about $3950 today dont remember sold wasnt enough make money Im sure broke deal few sets plans however got out parts country Later moves everything inked linen originals lost wound up intact copy myself Recently Wes Delong Toledo OH got touch few bought plans built models interested getting set plans lost also re-drafting still hadnt dug out cut-up set still have found complete unused set biggest problem rolled up 30 years Wes plans reproduci ble copy has promised set new plans Id love build another Cub just old times sake before finish Sparrowhawk Walrus Giant Scale Most com panies supply materials accesso ries hobby owned operated modelers fact things depend building efforts available us because some other modeler needed figured out make kept making enough rest us Almost exception people outstanding modelers own right Bob Siegelkoff CR Associates prime example Bob has modeling almost long have reason say almost long wont admit being old am Well nobodys old items CR provides us something Bob time another needed couldnt find made kept making month Ive got couple pic tures Bobs latest modeling project Vickers Armstrong Walrus pro duced 1935 awk ward fascinating military designs spanned time between WW WW II meant patrol obser vation aircraft time tried out dive bomber story after few tests idea dropped because no could decide would cause damagethe bomb sight sound thing dive plans 1A-scale model drawn Bob Morse wingspan 90 design weight 29 32 lb Although installed pictures taken functional retract gear has designed built photos show Saito Twin installed engine pod will replaced OS five-cylinder radial before first flights model currently complete except covering finish Ill try have flight shots time comes Sparrowhawk project pictures month Sparrowhawk fuse lage framework still pinned down bench first picture took sometime 1979 As can see pretty bad ways picture framework Mortimer looking picture got inter ested learning something about photog raphy turn led lot things goodbut also lot fact Sparrowhawk yet finished main reason include picture want talk about use gussets look close will see lot gussets pic Vickers Armstrong Walrus 1935 British amphibious patrol plane Bob Siegeikoff modeling Saito Twin 4cycie powerpiant will replaced 5cyiinder OS 4cycle before first flight Bob awaits firstflight photos 56 Model Aviation GIant Scaie30 years ago Wes Delong sent photo himself 7-ft-span Piper Cub Model built Alex Schneiders piens used Rockwell muitchannei reed-type radio powered Anderson Spitfire 60 2-speed ignition ture point project complete construction aircraft pret ty well planned mind enough down paper rough drawings could start actual building fuse lage framework sides built top other just like used build rubber models 50 years ago time though instead A-in square balsa used A-in square spruce gussets added side before sides removed board other side turned over before gusseting wound up right left side picture sides have pinned down over top view frame work top bottom cross pieces have added Note frame work upside down point LIGHT TO~OL look closely can see gussets have installed bottom frame work After everything set up framework unpinned turned over gussets added along top Okay whats gussets did go trouble matter what gussets Checking dictionary came up Gusset bracket plate used reinforce joints structure use gussets model building reinforce strengthen joints built-up fuselage frame like just bunch sticks glued together butt joints butt joints arent strongest world right kind gussets can increase strength butt joint factor five 10 get better idea gussets PO BOX 5387 SPRINGFIELD ILLINOIS 62705 should work what right kind gussets lets take close look butt joints framework side framework consists top bottom longeron vertical members maintaining spacing between longerons addition diagonal members add rigidity help distribute shock loads vertical pieces butt-joined longerons glue holding vertical spacer longe ron little patch glue has two pretty important things has keep longeron moving out away other longeron has keep ver tical spacer moving sideways would let longerons get closer togeth er Thats big job little square Continued page 155 Phone 217 7877811 Hours 10am 6pm MondaySaturday MasterCard VISA welcome Send cashiers check money order immediate processing HOBBIES via UPS Add $300 postage handling Add $500 charge card COD orders deliveries made Prices subject change notice MODEL KITS AIATRONIcS SAGITTA 9008595 SAGITTA 600sags OLYMPIC II5495 OLYMPIC 6503090 IRIDI AIRCRUISER 252190 AIRCRUISER6O3995 EU-iIsis EX-2 100 2390 KRAPTY 25 2495 KRAP1Y004295 LOADSTAR4O4290 WARLOAD 40 3795 GYRO loelcAis 500 racetl 2795 4-SEASONS4S3290 THEOLPAl-rERN5595 BREZEE SIPE 4995 TRAINERKRAFT4O2990 VAGABOND 40 3995 COVERITE GEE BEE SPORTOTER 5595 THEJEEP 5996 GEE SEE E seoS GREAT PLANES SUPER SPORTOTER 40 5990 SPORTOTER SIPEod 6195 SUPER SPORTSTER50 8299 CAP2160 9095 GOLDBERG JR TIGER 3995 SKY TIGER 4295 EAGLE 63 4295 FALCON 56 3395 SR FALCON 5995 JR FALCON 1995 SKYLARK56MKII 3995 SKYLANE62 4595 CURTIS PIAWE 3998 RANGER42IARFI 2495 GENTLE LADY 1996 BOB MARTIN MODELS ROUSE OF BALSAI 2 4 1395 206 1795 TOTEXAN 2195 1/4SCALEPETE 12495 F90DUCTED FAN 12495 P51-405IZEGLASS 9595 P51-405IZESALSA 4195 PIENTENPOL 3496 COYOTE 5295 KATIE II 4295 5679595 SUPER GRYPHON5095 HOBIEHAWK13995 1/Dy P51 MUSTANG1998 II3APOCKEWOLFE1S95 1I2ASONANZA1895 1l2AME1001595 1I2APETE1895 1/2ACHIPMUNK1695 TWO TEE1795 MARIES MODELS SCORPION IV3295 MIRAGE3495 WANDERER 993495 SUSHWACKERDoss SUNNY2595 HONKER SIPE2396 HONKER 1/21996 LIL GYPSY2296 PInS3595 MINI BIRD OF TIME2695 SENSOR9596 PHANTOM5395 AMERICAN EAGLE2995 P472 RAZORBACK9195 FUN COBRA2996 FUN MUSTANG2995 HELLCAT9595 19009 FW9595 PT154995 P5124995 M51594324995 CORSAIR7495 ATS4995 MIDWEST DAS BIPE STICK3995 SWEETS LOW3995 GIANT SWEET N LOW9595 LAZY BIRD3095 SOARER2595 PIPERCUBIIoanrI2796 BEERCAT3995 T-CRAPT3595 PAflERNMASTER3795 DAS LIL STICK2495 SUPER SWEET STICK4195 CESSNA CARDINAL2495 SUPER CHIPMUNK2496 HEINKEL4495 SWEET STICK 403995 SILENT SOSIRE2795 ATTACKER3995 TWINSTICKTRAINER3196 CHAMPION MK II2595 PERFORMER1996 JETSTER2S3196 PITiS SPECIAL6996 AOl Iducted lanI2395 PICA SPITFIRE9295 P001902-S7295 CESSNA1S2rsss SUCKER JUNOMEISTER7995 SHOOFLI5296 TOUCHE4195 JACK STAFFORD TOM KITTY 40IIoerrrI3795 TOM KIlT MK403995 TWIN COMANCHE9395 624 LIBERATOR12995 P394796 SUPER BUCCANEER2795 SUPER BUCCANEERIIOanrI2995 AIRCOUPE5995 CHIPMUNK5995 EAAACROSPORT5095 EAAACROSPORTIIoanrI5095 SIG ASTRO HOG4995 KOBRA2995 PIPER J 33795 PIPER CUB 114S15695 CLIPPEDWINOCUB3795 CLIPPEDWINGCUB1/4scale . 9596 RISER1995 HUMMER1695 KAVALIER3995 KIWI3995 COLT2395 DOUBLER II2595 CITABRIA5995 LISERTY SPORT6595 SMITH MINI PLANE4995 RYAN STA7495 ZLIN ACROBAT5395 KADET MK II3295 KADETJR2495 SKY BOLT5795 KOUGAR MEl3795 ELIPPER2195 SUPER SPORT2196 450 MUSTANG39B5 KOMET BALSA5695 KOMET PLY6295 KOMANDERMKII4195 BONANZA9196 SCAMP2295 KING KOBRA4995 EWIK BUILTS P516395 CESSNA 1506495 SUPER CHIPMUNK5995 CESSNA 1720995 ROYAL HIENSR11595 ZERO SR ASMS9195 SPITFIRE SR8796 CORSAIR SR P40109095 OSCAR SR 01439595 7W 19090BS FOPSEARCAT9095 P51 D9795 STUKA9595 ME 1099755 CESSNA 182. 9095 PIPER COLT 599095 SPIRITOPSY LOUIS10398 PITISLILSTINKER9096 PIflS S29795 STAGGERWING9796 CESSNADUK9796 P4J PHANTOM9595 TOPPL lYE ELDER3195 ANTARES GLIDER6495 HOT KANARY4695 SESA5095 HEADMASTER 454495 ZERO6595 J3 CUB6795 CONTENDER4155 CONTENDER 403995 PRESSMAN TRAINER3595 P51 MUSTANG 5795 PAD WARHAWK 6295 P39AIRCOBRA 5795 P47THUNDERBOLT 9595 CORSAIR 9596 BEARCAT POP 9595 METRICK 3695 OTHER KITS AVAILABLE AT COMPARABLE PRICES ACCESSORY COMPLETION KITS rrred shopping br hardware oIler custom I lot krl accessorIes required complete model spRUrarly grouped ucroenienl sit lorm allow low prroes Accessories also acailaSle separately ENGINES 02 MAX wIMeIlls, 10 PSR 6/C 3095 tSR/C 3595 2ORIC 3295 25 6/C 2395 25 FOR RIC 4995 25 PSR 6/C ABC 5595 28709 6/C 5795 28 FSR RIC C 9096 30R/C 2595 356/C 3995 40 6/C 5796 40PSR 6/C 6296 40 PSR 6/C ABC 6995 4SPSR RIC 9595 45 PSR 6/C ABC 9995 50PSR 9/C 5295 6tFSR6/C 90BS El FSRRICABC 11595 907S6 6/C 13395 108 FOR 6/C 13695 FT12OTWIN 36595 PS4D 4CYCLE 9595 70514-CYCLE 12295 70504-CYCLE 14295 PS 1254CYCLE SINGLE 17995 ENYA 705 ENGINES Also Auai/aS/e RADIOS FUTABA RADIOS Prices aca/laSle opec requesll 4 70 in/a SERVOS 6 PG mId SERVOS 8 SGH eu/A SERVOS O P0K w/4 SER AM 5 PGK 0u14 SER FM 6 70K w14 SER AM 6 P0K w14 SER FM 7 FGK mId SER AM 7 70K ovId SER PM PLUS. GAS TANKS COVERING MATERIALS OH SSIV ES PROPS GLOW PLUGS ACYCLE GLOW PLUGS HARDWARE WHEELS April 1985 57 Bob almost ashamed show photo left taken very early stages photographic efforts however wants show examples use gussets strengthen model structure Hed just started Sparrowhawk Two things have progressed photo right Sparrowhawk Bobs photographic prowess framework has now fleshed out lightweight foamoore formers light stringers Note Ioadbearing formers heavy plywood RC Giant Scale/Beckman Continued page 57 glue especially consider stresses will see rough landing point seems obvious want get some glue working us joint Some people try using big globs glue fill cor ners two pieces meet adds weight strength since glue designed hold two pieces something else together itself very strong Dont make mistake think ing what just said doesnt apply epoxy does What needed crease total area glued joint Thats gussets come Take another look definition gusset talks about bracket plate. implies least two types gussets applica tion bracket corresponds piece material fitted glued angles between two structural members plate flat piece material glued surface both members spanning joint pictures can see gussets plate type Bracket fill-in type gussets have uses cases prefer plates mind fill-ins have two strikes against First trying get maximum glued area should thick structural members case t balsa would indicated Second joint requires least two sometimes three four carefully-fitted pieces Thats lot time-consuming work plates other hand piece per joint needed little fitting required Plates can quite thin since gluing area surface edge course material used must have good tensile strength favorite 42-in plywood has strength needed application can easily cut pair scissors took about two minutes prepare gussets Sparrowhawk used combination square draw bunch one-inch squares 6 x 12-in sheet plywood drew diagonals through squares easy job 450 head combination square cut Out triangular gussets scissors few rectangular pieces needed done just easily Youll note gussets outside framework gives maximum strength least amount work Since formers needed final fuselage shape simply included thickness gussets cutting formers fit framework sometimes case framework itself outer surface fuselage might want have gussets show ing case might want use bracket fill-in type gusset Plates can used inside framework have some real dis * TPLANS * AR Baby 7j Especially Turn-around thi 850 sq 120 9 cycle powered Ron Chidgey design smooth solid performer Rib templates computer plotted Plans construction hints $1190 TIGER TAIL 4 Ron Chidgeys latest best series little larger lighter slower retains honest flight characteristics its predecess ors Plans construction hints WELLER 3 BLADE FIBERGLASS PROP Proven ih Nats Interna tional competition 7319 $2000 IVANS MAGIC GADGET protractor device used Ivan Krletensen accurately measu-e aileron elevator arfd rucder throw Takes guess work Out trimming Out airplane quality tool complete instructions log book carrying case SEE YOUR DEALER OR OREItK DIRECT advantages first completely internal gusset arrangement can reinforce plane struc ture corner example could use internal plate gussets strengthen sides framework would have use either external plates brackets reinforce top bottom points crossmembers line vertical members final point Ive often seen gussets shown sections circles dont see advantage same size gusset difference gluing area significant compared work involved second Sparrowhawk picture month shows final rigid gusseted framework fleshed out lightweight formers stringers also shows that time making some progress responding advertisers mention read about Model Aviation WING TUBE & SOCKETS Aluminum alloy tubing plugin wings Included pair special slipfit phenolic sockets build wing structure Now size models 7/8 die x 2 0 1j dia x2 $895 11 dia x 3 5 ENGINE SLEEVE BEARING PULLER Pull tight sleeves bearings easily damage new 99s 17MM rea bearing Both SLEEVE- $795for TRANSMITTER CASE An inexpensive molded case protect eapenslve transmitter two stick single transmittersBrown1w grain aluminum trim ano locking clasp $1695 Qatar WC Products GP 3713 Pompano Drive Pensacola FL 325111 Phone 9011 11768639 INCLUbE 9100 PER ITEM FOR UPS photography learned little about backgrounds focus still long way go lighting composition Bob Beckman 8248 Holly Grove Ct Manass VA 22110 RC Pylon Racing/Hager Continued page 58 checked again Well some changes some props noted testing props noticed some seemed have airflow behind others So checked pitch see What found out didnt seem right lower-pitch prop turning same rpm higher-pitch prop equal diameter shouldnt have airflow other So started thinking could measure differ ence saying its wood system used easy make simple come round cardboard tube roll ZLIN Z50-L K Brand New hot new per former gives everything demand model Strong lightweight balsa ply construc tion easy buildl Fuel tank hardware included 60 90 two stroke 90 120 four stroke engines BASIC KIT S 1199569Z/3 wing span 844 sq wing area 80% ASSEMBLED 53250075 88 lbs WE GIVE YOU THE GREATEST VALUE fl33gORDER TOLL FREE 8007820022 CI3AI*5 SERVICE & INFORMATION 702-7320022 3132 So Highland Drive Las Vegas Nevada 89109 Send $150 catalog Refunded first purchase April1985 155
Edition: Model Aviation - 1985/04
Page Numbers: 56, 57, 155
Radio Control Giant Scale Bob Beckman NOSTALGIA TIME early Fifties living San Francisco area RC activities centered around Ed Rockwood multi-channel reed system Alex Schneider become three-time Nats winner proficient builder/flier local group Alexs planes much-modified versions seven-foot-span Capital kit Piper Cub first reed radio model built Alexs rough draw ings lot people interested building model especially after won Nationals rough drawings werent really construction plans Alexs permission drew up set plans As remember made few structural changes outlines aerodynamics unchanged mid-Fifties selling plans $395 postpaid corre sponds about $3950 today dont remember sold wasnt enough make money Im sure broke deal few sets plans however got out parts country Later moves everything inked linen originals lost wound up intact copy myself Recently Wes Delong Toledo OH got touch few bought plans built models interested getting set plans lost also re-drafting still hadnt dug out cut-up set still have found complete unused set biggest problem rolled up 30 years Wes plans reproduci ble copy has promised set new plans Id love build another Cub just old times sake before finish Sparrowhawk Walrus Giant Scale Most com panies supply materials accesso ries hobby owned operated modelers fact things depend building efforts available us because some other modeler needed figured out make kept making enough rest us Almost exception people outstanding modelers own right Bob Siegelkoff CR Associates prime example Bob has modeling almost long have reason say almost long wont admit being old am Well nobodys old items CR provides us something Bob time another needed couldnt find made kept making month Ive got couple pic tures Bobs latest modeling project Vickers Armstrong Walrus pro duced 1935 awk ward fascinating military designs spanned time between WW WW II meant patrol obser vation aircraft time tried out dive bomber story after few tests idea dropped because no could decide would cause damagethe bomb sight sound thing dive plans 1A-scale model drawn Bob Morse wingspan 90 design weight 29 32 lb Although installed pictures taken functional retract gear has designed built photos show Saito Twin installed engine pod will replaced OS five-cylinder radial before first flights model currently complete except covering finish Ill try have flight shots time comes Sparrowhawk project pictures month Sparrowhawk fuse lage framework still pinned down bench first picture took sometime 1979 As can see pretty bad ways picture framework Mortimer looking picture got inter ested learning something about photog raphy turn led lot things goodbut also lot fact Sparrowhawk yet finished main reason include picture want talk about use gussets look close will see lot gussets pic Vickers Armstrong Walrus 1935 British amphibious patrol plane Bob Siegeikoff modeling Saito Twin 4cycie powerpiant will replaced 5cyiinder OS 4cycle before first flight Bob awaits firstflight photos 56 Model Aviation GIant Scaie30 years ago Wes Delong sent photo himself 7-ft-span Piper Cub Model built Alex Schneiders piens used Rockwell muitchannei reed-type radio powered Anderson Spitfire 60 2-speed ignition ture point project complete construction aircraft pret ty well planned mind enough down paper rough drawings could start actual building fuse lage framework sides built top other just like used build rubber models 50 years ago time though instead A-in square balsa used A-in square spruce gussets added side before sides removed board other side turned over before gusseting wound up right left side picture sides have pinned down over top view frame work top bottom cross pieces have added Note frame work upside down point LIGHT TO~OL look closely can see gussets have installed bottom frame work After everything set up framework unpinned turned over gussets added along top Okay whats gussets did go trouble matter what gussets Checking dictionary came up Gusset bracket plate used reinforce joints structure use gussets model building reinforce strengthen joints built-up fuselage frame like just bunch sticks glued together butt joints butt joints arent strongest world right kind gussets can increase strength butt joint factor five 10 get better idea gussets PO BOX 5387 SPRINGFIELD ILLINOIS 62705 should work what right kind gussets lets take close look butt joints framework side framework consists top bottom longeron vertical members maintaining spacing between longerons addition diagonal members add rigidity help distribute shock loads vertical pieces butt-joined longerons glue holding vertical spacer longe ron little patch glue has two pretty important things has keep longeron moving out away other longeron has keep ver tical spacer moving sideways would let longerons get closer togeth er Thats big job little square Continued page 155 Phone 217 7877811 Hours 10am 6pm MondaySaturday MasterCard VISA welcome Send cashiers check money order immediate processing HOBBIES via UPS Add $300 postage handling Add $500 charge card COD orders deliveries made Prices subject change notice MODEL KITS AIATRONIcS SAGITTA 9008595 SAGITTA 600sags OLYMPIC II5495 OLYMPIC 6503090 IRIDI AIRCRUISER 252190 AIRCRUISER6O3995 EU-iIsis EX-2 100 2390 KRAPTY 25 2495 KRAP1Y004295 LOADSTAR4O4290 WARLOAD 40 3795 GYRO loelcAis 500 racetl 2795 4-SEASONS4S3290 THEOLPAl-rERN5595 BREZEE SIPE 4995 TRAINERKRAFT4O2990 VAGABOND 40 3995 COVERITE GEE BEE SPORTOTER 5595 THEJEEP 5996 GEE SEE E seoS GREAT PLANES SUPER SPORTOTER 40 5990 SPORTOTER SIPEod 6195 SUPER SPORTSTER50 8299 CAP2160 9095 GOLDBERG JR TIGER 3995 SKY TIGER 4295 EAGLE 63 4295 FALCON 56 3395 SR FALCON 5995 JR FALCON 1995 SKYLARK56MKII 3995 SKYLANE62 4595 CURTIS PIAWE 3998 RANGER42IARFI 2495 GENTLE LADY 1996 BOB MARTIN MODELS ROUSE OF BALSAI 2 4 1395 206 1795 TOTEXAN 2195 1/4SCALEPETE 12495 F90DUCTED FAN 12495 P51-405IZEGLASS 9595 P51-405IZESALSA 4195 PIENTENPOL 3496 COYOTE 5295 KATIE II 4295 5679595 SUPER GRYPHON5095 HOBIEHAWK13995 1/Dy P51 MUSTANG1998 II3APOCKEWOLFE1S95 1I2ASONANZA1895 1l2AME1001595 1I2APETE1895 1/2ACHIPMUNK1695 TWO TEE1795 MARIES MODELS SCORPION IV3295 MIRAGE3495 WANDERER 993495 SUSHWACKERDoss SUNNY2595 HONKER SIPE2396 HONKER 1/21996 LIL GYPSY2296 PInS3595 MINI BIRD OF TIME2695 SENSOR9596 PHANTOM5395 AMERICAN EAGLE2995 P472 RAZORBACK9195 FUN COBRA2996 FUN MUSTANG2995 HELLCAT9595 19009 FW9595 PT154995 P5124995 M51594324995 CORSAIR7495 ATS4995 MIDWEST DAS BIPE STICK3995 SWEETS LOW3995 GIANT SWEET N LOW9595 LAZY BIRD3095 SOARER2595 PIPERCUBIIoanrI2796 BEERCAT3995 T-CRAPT3595 PAflERNMASTER3795 DAS LIL STICK2495 SUPER SWEET STICK4195 CESSNA CARDINAL2495 SUPER CHIPMUNK2496 HEINKEL4495 SWEET STICK 403995 SILENT SOSIRE2795 ATTACKER3995 TWINSTICKTRAINER3196 CHAMPION MK II2595 PERFORMER1996 JETSTER2S3196 PITiS SPECIAL6996 AOl Iducted lanI2395 PICA SPITFIRE9295 P001902-S7295 CESSNA1S2rsss SUCKER JUNOMEISTER7995 SHOOFLI5296 TOUCHE4195 JACK STAFFORD TOM KITTY 40IIoerrrI3795 TOM KIlT MK403995 TWIN COMANCHE9395 624 LIBERATOR12995 P394796 SUPER BUCCANEER2795 SUPER BUCCANEERIIOanrI2995 AIRCOUPE5995 CHIPMUNK5995 EAAACROSPORT5095 EAAACROSPORTIIoanrI5095 SIG ASTRO HOG4995 KOBRA2995 PIPER J 33795 PIPER CUB 114S15695 CLIPPEDWINOCUB3795 CLIPPEDWINGCUB1/4scale . 9596 RISER1995 HUMMER1695 KAVALIER3995 KIWI3995 COLT2395 DOUBLER II2595 CITABRIA5995 LISERTY SPORT6595 SMITH MINI PLANE4995 RYAN STA7495 ZLIN ACROBAT5395 KADET MK II3295 KADETJR2495 SKY BOLT5795 KOUGAR MEl3795 ELIPPER2195 SUPER SPORT2196 450 MUSTANG39B5 KOMET BALSA5695 KOMET PLY6295 KOMANDERMKII4195 BONANZA9196 SCAMP2295 KING KOBRA4995 EWIK BUILTS P516395 CESSNA 1506495 SUPER CHIPMUNK5995 CESSNA 1720995 ROYAL HIENSR11595 ZERO SR ASMS9195 SPITFIRE SR8796 CORSAIR SR P40109095 OSCAR SR 01439595 7W 19090BS FOPSEARCAT9095 P51 D9795 STUKA9595 ME 1099755 CESSNA 182. 9095 PIPER COLT 599095 SPIRITOPSY LOUIS10398 PITISLILSTINKER9096 PIflS S29795 STAGGERWING9796 CESSNADUK9796 P4J PHANTOM9595 TOPPL lYE ELDER3195 ANTARES GLIDER6495 HOT KANARY4695 SESA5095 HEADMASTER 454495 ZERO6595 J3 CUB6795 CONTENDER4155 CONTENDER 403995 PRESSMAN TRAINER3595 P51 MUSTANG 5795 PAD WARHAWK 6295 P39AIRCOBRA 5795 P47THUNDERBOLT 9595 CORSAIR 9596 BEARCAT POP 9595 METRICK 3695 OTHER KITS AVAILABLE AT COMPARABLE PRICES ACCESSORY COMPLETION KITS rrred shopping br hardware oIler custom I lot krl accessorIes required complete model spRUrarly grouped ucroenienl sit lorm allow low prroes Accessories also acailaSle separately ENGINES 02 MAX wIMeIlls, 10 PSR 6/C 3095 tSR/C 3595 2ORIC 3295 25 6/C 2395 25 FOR RIC 4995 25 PSR 6/C ABC 5595 28709 6/C 5795 28 FSR RIC C 9096 30R/C 2595 356/C 3995 40 6/C 5796 40PSR 6/C 6296 40 PSR 6/C ABC 6995 4SPSR RIC 9595 45 PSR 6/C ABC 9995 50PSR 9/C 5295 6tFSR6/C 90BS El FSRRICABC 11595 907S6 6/C 13395 108 FOR 6/C 13695 FT12OTWIN 36595 PS4D 4CYCLE 9595 70514-CYCLE 12295 70504-CYCLE 14295 PS 1254CYCLE SINGLE 17995 ENYA 705 ENGINES Also Auai/aS/e RADIOS FUTABA RADIOS Prices aca/laSle opec requesll 4 70 in/a SERVOS 6 PG mId SERVOS 8 SGH eu/A SERVOS O P0K w/4 SER AM 5 PGK 0u14 SER FM 6 70K w14 SER AM 6 P0K w14 SER FM 7 FGK mId SER AM 7 70K ovId SER PM PLUS. GAS TANKS COVERING MATERIALS OH SSIV ES PROPS GLOW PLUGS ACYCLE GLOW PLUGS HARDWARE WHEELS April 1985 57 Bob almost ashamed show photo left taken very early stages photographic efforts however wants show examples use gussets strengthen model structure Hed just started Sparrowhawk Two things have progressed photo right Sparrowhawk Bobs photographic prowess framework has now fleshed out lightweight foamoore formers light stringers Note Ioadbearing formers heavy plywood RC Giant Scale/Beckman Continued page 57 glue especially consider stresses will see rough landing point seems obvious want get some glue working us joint Some people try using big globs glue fill cor ners two pieces meet adds weight strength since glue designed hold two pieces something else together itself very strong Dont make mistake think ing what just said doesnt apply epoxy does What needed crease total area glued joint Thats gussets come Take another look definition gusset talks about bracket plate. implies least two types gussets applica tion bracket corresponds piece material fitted glued angles between two structural members plate flat piece material glued surface both members spanning joint pictures can see gussets plate type Bracket fill-in type gussets have uses cases prefer plates mind fill-ins have two strikes against First trying get maximum glued area should thick structural members case t balsa would indicated Second joint requires least two sometimes three four carefully-fitted pieces Thats lot time-consuming work plates other hand piece per joint needed little fitting required Plates can quite thin since gluing area surface edge course material used must have good tensile strength favorite 42-in plywood has strength needed application can easily cut pair scissors took about two minutes prepare gussets Sparrowhawk used combination square draw bunch one-inch squares 6 x 12-in sheet plywood drew diagonals through squares easy job 450 head combination square cut Out triangular gussets scissors few rectangular pieces needed done just easily Youll note gussets outside framework gives maximum strength least amount work Since formers needed final fuselage shape simply included thickness gussets cutting formers fit framework sometimes case framework itself outer surface fuselage might want have gussets show ing case might want use bracket fill-in type gusset Plates can used inside framework have some real dis * TPLANS * AR Baby 7j Especially Turn-around thi 850 sq 120 9 cycle powered Ron Chidgey design smooth solid performer Rib templates computer plotted Plans construction hints $1190 TIGER TAIL 4 Ron Chidgeys latest best series little larger lighter slower retains honest flight characteristics its predecess ors Plans construction hints WELLER 3 BLADE FIBERGLASS PROP Proven ih Nats Interna tional competition 7319 $2000 IVANS MAGIC GADGET protractor device used Ivan Krletensen accurately measu-e aileron elevator arfd rucder throw Takes guess work Out trimming Out airplane quality tool complete instructions log book carrying case SEE YOUR DEALER OR OREItK DIRECT advantages first completely internal gusset arrangement can reinforce plane struc ture corner example could use internal plate gussets strengthen sides framework would have use either external plates brackets reinforce top bottom points crossmembers line vertical members final point Ive often seen gussets shown sections circles dont see advantage same size gusset difference gluing area significant compared work involved second Sparrowhawk picture month shows final rigid gusseted framework fleshed out lightweight formers stringers also shows that time making some progress responding advertisers mention read about Model Aviation WING TUBE & SOCKETS Aluminum alloy tubing plugin wings Included pair special slipfit phenolic sockets build wing structure Now size models 7/8 die x 2 0 1j dia x2 $895 11 dia x 3 5 ENGINE SLEEVE BEARING PULLER Pull tight sleeves bearings easily damage new 99s 17MM 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hardware included 60 90 two stroke 90 120 four stroke engines BASIC KIT S 1199569Z/3 wing span 844 sq wing area 80% ASSEMBLED 53250075 88 lbs WE GIVE YOU THE GREATEST VALUE fl33gORDER TOLL FREE 8007820022 CI3AI*5 SERVICE & INFORMATION 702-7320022 3132 So Highland Drive Las Vegas Nevada 89109 Send $150 catalog Refunded first purchase April1985 155