BONDING AND ADHESIVES subjects Chris Shearer member Orbiting Ea gles Omaha has some words us suspect writing Chris Scale Combat comments bonding adhesives apply us Chris starts comments indicating us certainly aware importance adhesives aware impor tance bond bond made up adhe sive contact between surfaces being bonded Most adhesives found today extreme ly good bonding two materials long materials make good contact problem occurs two materials being bonded make good contact Chris goes relate own expe rience poor bonding can costly Some time ago built number Slow Combat planes some spots surfaces glued did make good contact later found planes poor bonds did stand up stresses hard landings crashes thus limiting some models flying times lesson learned whether youre nov ice experienced builder importance making sure surfaces bonded make proper contact Dont fall assumption adhesive will fill gaps between surfaces accompanying sketches intended il lustrate points made Chris Sketches B type joint might expect find putting together bulkheads ap plying sheeting wing tail surface Sketch shows quite exaggerated ragged edge would make bonding two surfaces almost impossible large amounts glue wont make up gaps between surfaces POOR JOINT RAGGED EDGE [v TOO MUCH SPACE GOOD JOINT 100% CONTACT - GOOD FIT cant obtain maximum strength structural joint unless pieces fit well no matter what adhesive use Bills column discusses fact length month Sketch B shows joint 100% contactSketches C D illustrate type joint maximum strength can obtained fromconstruction found leading trailing bonding adhesiveContinued nape 160 March 1988 61 Control Line Scale Bill Boss 77-06 269th Street New Hyde Parke NY 11040 four fliers competed Scale event 87 Southwestern CL Championships Dallas TX Pilots/planes L-R Jason Stolly/prof lie P-51 Jack Stolly/P-38 Nats winner Eric Tomchiklprofile P38 Jeff Etheridge/Curtiss P-40 members Dallas Model Aircraft Association Photo Gene Hempel Note P-40 actually Stunter Mike Welshans sends two photos L Bill Logan London Ontario Canada 1/4-scale Volksplane Wingspan 7 ft Seafire R work Bill Gielow Sterling Heights Ml made highly modified Sterling kit Power Fox 60 Cr towline launch techniques achieve results approach coupled very light wing loading enabled him max quite easily some impressive initial altitudes airfoils super-sophisticated todays standards probably heart continuing success field Owing touchiness trim very serious center-of-gravity problems present Rubber categories flying wings still disadvantage conven tional AMA competition configura tion continues Wainfans modeling priority and well probably see machines continue capture some trophies pitted against orthodox models Whether its wing canard hybrid design sets apart different things air always fascinate Under canopy extremes heat Taft 1987 certainly far bored subject hand fact terrific time testing out theories against actual performance learned lot gulped Ga torade gallon prepared next year extra-generous Wainfans supplied liberal quantities one-onone help armed us bags airfoil plots well making good performance seem right hand As result twentysecond Northrop Flying Wing Contest next year should vey close encounter responding advertisers mention read about Model Aviation edge wing tail surface Again gap shown joint Sketch C would provide joint poor strength well make rib align ment wing difficult task Sketch D shows same joint properly made provide maxi mum strength three most-used adhesives modelers work today aliphatic resins white glue cyanoacrylate CyA epoxy resin seems Chris modelers using more epoxy cyano expense ali phatic resins ie Elmers Carpenter Glue Titebond etc seem have fallen sumption epoxy cyano better use because strength speed curing However aliphatic resins can just strong job given proper curing time cases aliphatic glues will set suf ficiently hour permit handling hooded structure distinct advantages using phatic resins cost Using base approxi mately $10 can get either about four ounces cyano about 16 oz epoxy quart aliphatic resins Chris doesnt say should stop using epoxy cy ano adhesives suggesting ali phatic adhesives certainly have place modeling activities Hobbypoxy paint formula Petit Paint Co has recently issued another set its Hobbypoxy Military Color formulas new colors Lemon Yellow Willow Green used U S Navy carrier aircraft identifica tion during Thirties about mid-Thirties aircraft car rier assigned particular identifying color color painted tail surfaces planes based carrier carrier colors CV-2 LexingtonLemon Yellow FS 13655 CV-3 SaratogaWhite FS 17875 CV4 RangerWillow Green FS 14817 CV-5 YorktownInsignia Red FS 11136 CV-6 EnterpriseTrue Blue FS 15102 CV-7 WaspBlack FS 17038 Reference iden tification colors US Naval Fighters 1922 1980s published Aero Publishers new formulas noted above Lemon Yellow Willow Green follows Lemon Yellow FS 13655three parts H49 Cub Yellow two parts H47 Bright Yellow part H10 White two drops H33 Stinson Green per three ounces above mixed colors Willow Green FS 1481 7lO parts H47 Bright Yellow three parts H49 Cub Yellow two parts H24 Dark Blue identification colors glossy Use Hob bypoxy H02 Gloss H06 Quick Spray harden ers mixing colors should noted formulas True Blue color sometimes referred ANA 501 Light Blue FS 15102 RMcM Insignia Red Insignia White original ly published Petit Co 1984 Black stock Hobbypoxy color mulas did appear column can found RC Scale column Bob Dol ly Wischer January March 1985 issues MA formulas early colors may also obtained writing Hobbypoxy Products Pettit Paint Co Inc 36 Pine St Rockaway NJ 07866 Kits plans Stan Alexander Editor Repli FOAM WINS CORES SEND $350 FOR DESCRIPTIVE PRODUCT CATALOG muuu...uUEUEuEEEuuEuEuuuEEEEuuUUUUEEIU U U .- .-U U PRECISION MADE EXPANDED BEAD POLYSTYRENE REPLACEMENT WING S STAB CORES FOR ALL I POPULAR RIC AIRCRAFt OVER 250 DIFFERENT WINGS U IN STOCK FOR IMMEDIATE DELIVERY SO IF YOU NAVE U mA FAVORITE BIRD THAT NEEDS WING CALL OR U I U U _________________________ U U U U U U IUUUflUUUUUUUUUI 160 Model Aviation l*AjoJ1 KZ/G AIFG WING MFIL P0 BOX 33 CRYSTAL LAKE IL 60014 COMPOSITE MA TERIALS CARBON FIBER LAMINATES CARBON & KEVIAR MATS KEVLARI GRAPHITE FABRICS tsozlsqJLGLASSCLOTH CARBON & KEVLAR TAPES CARBON FIBER RIBBON GLASS FOAM PANELS GLASS END GRAIN BALSA PANELS CARBON FIBER END GRAIN BALSA PANELS BRAIDED CARBON CORD 074 CARBON FIBER FLEX PLATES SAFETPOXY Epoxy Lanilnglng Reski Send SASE mpIete listing products Aerospace Composite Products PO Box 16621 IMne CA 4 714 2501107 CL Scale/Boss Continued page 61 DOHAVILLAND BEAVER GIANT SCALE 96 4 CYCLE 90120 SEND S200 FOR COMPLETE CATALOG OF FINE KITS IKON NWST__ PO Box 566 Ca newsletter National Association Scale Aeromodelers says recent issue youve looking around kits market just dont see anything strikes fancy its time start look ing plans new project know must have three-views some pictures along anything can find chosen subject area interest Stan suggests best sources knows plans Bob Holman Plans PO Box 741 San Bernardino CA 92404 Bob offers three catalogs total price $9 first catalog includes Brian Taylor plans Scale drawings kinds aircraft us have heard aboutand also some obscure plans catalog includes such subjects F6F Hellcat A-scale Eindecker working wing warping 60-in ME-109F 75-in F4U-1 Corsair addition semikits include sanded wing ribs cowl canopy some plans second pians catalog has plans FF CL RC England subjects catalog avail able other US plans catalogs last catalog contains listings Scale drawingseverything Gossamer Alba tross Zeppelin Staaken RVI Whether subject current vintage good chance youll find Holman catalogs am always very receptive appreciative correspondence especially photos relat ing CL Scale Mail address given front column CL Aerobatics/Fancher Continued page 62 plan duplicate desired shape Tackglue fuse parts together prior installing wing tail entire fuselage shaped unit Protect areas dont wish sand masking tape Use modeling/razor plane shape nose tail long sweeping strokes Count number passes segment repeat number its symmetrical counterpart will insure reasonable synmietry shape nearly desired continue refining coarse sandpaper work way down fine paper shape surface finish finalized Glue sandpaper variously sized dowels use shaping concave areas Whenever possible use sanding block ensure uniform pressure convenience cover wing tail whether silkspan full-bore Pro Stunt finish MonoKote-type covering before final assembly papering overlap center section provide uniform rigidity full span MonoKote coverings should carefully tached within / fuselage will glued thus allowing fillet overlap covering assure sealing edge After assembling major components recognizable Stunt ship cover nose back high point wing ultralightweight fi berglass cloth using Hobbypoxy Formula II glue thinned brushing consistency Hobbypoxy thinner Use excess fuel-proof engine tank compartments epoxy thor oughly cured sand lightly medium paper remove oily residue apply two fullstrength coats clear dope Now cover fuse vertical tail light weight silkspan Apply paper fuse side time using spray bottle water moisten paper mold body WRAM SHOW88 1988 will once again present RC Plane Car Beat Show Yonkers Raceway mited parking Its 20th annual show its sure biggest ever Thia years WRAM Show going largest yet Well over 150 manufacturers other eshibitors have already signed up bring everything thats new hobby . kits engines radios accessories everything between famous Swap Shop will full operation thousands items including built-up planes cars boats almost new radios engines something lust about everyone ADVANCED TICKET SALES Save time order tickets now send check money order made payable WRAM Inc allow 3 weeks check clearance selfaddressed stamped envelope Ed Alesis 21 Pamela Road Peekskill NY 10566 day Ticket Two day Ticket under 12 yrs day 4 te,,,,n IZZD ~7Fi STATIC COMPETITION modeis must operable RC controlled Trophies andlor prizes awarded VCRs awarded two categories Best-in-Show flying Best-is show non-flying Top line RC systems 1st piece category Trophies eli other winners OvAl SCALE BC BSATS POST WSSI IMiIIIaIYI IMilunli POST 02W SCALE RC BOATS lhOMIIiltnhl INOIl-tiIIjIaOl PATTERN RACING B/C BOATS GANT SCALE STANO-OFF SCALE SO TIMERS vc CAnS 1/12 scale JANIOR EVENTSOC CABS 1/10 SCAIB SPORT vC CARS 1/I shoe SLISERS lolget HELICOPTERS BESTI1i-SAOW EIIItS may ImilOt tut0 spat aoalatIIIIy obtain pre-regist ration Static Competi tinT forms write linclude self-addressed stamped enoelopel Allen Reinherdt 2 Doagias Drive Pieasantviile NY 10570 Judging takes piece sunday afternoon DIRECTIONS Tonkert BacnwaA S located n snuthern woatchoster County along Beetern Nohhhound Side New TorN state Thruway tOll PROM THE NORTH I-aT South Ecit 4 5eoice oad 1030 ttatto lIght Turn lert iooer Thruwdyl toentet park ne area PROM THE SOUTht lOT Noth Ecit 2 tat trattlc lIght turn Ight ente perkng area Youll surprised much able work material its wet Adhere using mixture 75% thinner 25% dope dry remove excess paper folding back itself sanding #320 paper until separates leaving nicely feathered edge lightly pen ciled centerline will help job neatly second side same way folding back paper centerline feathering away edge 320 paper paper serves two purposes First adds tremendous strength Second covers coarse balsa grain need oniy apply enough flu lercoat fill grain paper Apply sever al coats 50/50 dope/thinner mixture entire airframe looking condition no open pores paper yet glossy Now add fillets Sig Epoxolite equal fillets - light extremely strong Entries accepted until 12 Noon Sunday Special admission area will prooided both days static display con testants built-up models Registration models will start 830 am morning SWAP SHOP WRAMs Swap shop has become maior show attractions thoasands individeal items changing hands help eliminate registration crush Swap Shop will provide preregistration forms receive forms send self-addressed stamped envelope John Isbister 4 Devon Rd Larchmont NY 10538 SPECIAL NOTE year will no restrictions namber built-up models regis trant may piece Swap Shop further information write enclose sell-addressed stamped envelope call Jerry Judge Nancy Road Brewster tOY 10509 914-279-2717 WESTCHESTER RADIO AEROMODELERS INC Cut tip off large nylon glue gun leaving A-in hole use apply Epoxolite Use wet dowel rough-shaping fillet final modeling finger kept very wet prevent dragging fillet material Epox olite should completely shaped still uncured Once cured too hard shape Allow fillets cure two full days use Sig Airplane Cleaner DuPont PrepSol clean oily epoxy residue completely Sand entire ship lightly #400 paper used dry Now must make decision what type finish desire recommend use dope either Sig Aero Gloss depending clear have used epoxy paint K&B Super Poxy current favorite dope finishes somewhat lighter can buffed slight ly lustrous final finish whereas epoxy finishes infinitely durable will March 1988 161 21/2D lOAM to6PM MECA Model Engine Collectors Association invites visit Flea Market & Display Antique Model Engines during weekend WRAM Show MECA activity will Saturday Evening February 27 1987 400 pm 1000 pm VFW Hall Yonkers New York Yonkers VFW City Post #1 666 574 Yonkers Avenue 314 mile northwest NY State Thruway 1-87 Yonkers Raceway 1/4 mile southeast Cross County Parkway Admission $500 plus $200 table space desired
Edition: Model Aviation - 1988/03
Page Numbers: 61, 160, 161
Edition: Model Aviation - 1988/03
Page Numbers: 61, 160, 161
BONDING AND ADHESIVES subjects Chris Shearer member Orbiting Ea gles Omaha has some words us suspect writing Chris Scale Combat comments bonding adhesives apply us Chris starts comments indicating us certainly aware importance adhesives aware impor tance bond bond made up adhe sive contact between surfaces being bonded Most adhesives found today extreme ly good bonding two materials long materials make good contact problem occurs two materials being bonded make good contact Chris goes relate own expe rience poor bonding can costly Some time ago built number Slow Combat planes some spots surfaces glued did make good contact later found planes poor bonds did stand up stresses hard landings crashes thus limiting some models flying times lesson learned whether youre nov ice experienced builder importance making sure surfaces bonded make proper contact Dont fall assumption adhesive will fill gaps between surfaces accompanying sketches intended il lustrate points made Chris Sketches B type joint might expect find putting together bulkheads ap plying sheeting wing tail surface Sketch shows quite exaggerated ragged edge would make bonding two surfaces almost impossible large amounts glue wont make up gaps between surfaces POOR JOINT RAGGED EDGE [v TOO MUCH SPACE GOOD JOINT 100% CONTACT - GOOD FIT cant obtain maximum strength structural joint unless pieces fit well no matter what adhesive use Bills column discusses fact length month Sketch B shows joint 100% contactSketches C D illustrate type joint maximum strength can obtained fromconstruction found leading trailing bonding adhesiveContinued nape 160 March 1988 61 Control Line Scale Bill Boss 77-06 269th Street New Hyde Parke NY 11040 four fliers competed Scale event 87 Southwestern CL Championships Dallas TX Pilots/planes L-R Jason Stolly/prof lie P-51 Jack Stolly/P-38 Nats winner Eric Tomchiklprofile P38 Jeff Etheridge/Curtiss P-40 members Dallas Model Aircraft Association Photo Gene Hempel Note P-40 actually Stunter Mike Welshans sends two photos L Bill Logan London Ontario Canada 1/4-scale Volksplane Wingspan 7 ft Seafire R work Bill Gielow Sterling Heights Ml made highly modified Sterling kit Power Fox 60 Cr towline launch techniques achieve results approach coupled very light wing loading enabled him max quite easily some impressive initial altitudes airfoils super-sophisticated todays standards probably heart continuing success field Owing touchiness trim very serious center-of-gravity problems present Rubber categories flying wings still disadvantage conven tional AMA competition configura tion continues Wainfans modeling priority and well probably see machines continue capture some trophies pitted against orthodox models Whether its wing canard hybrid design sets apart different things air always fascinate Under canopy extremes heat Taft 1987 certainly far bored subject hand fact terrific time testing out theories against actual performance learned lot gulped Ga torade gallon prepared next year extra-generous Wainfans supplied liberal quantities one-onone help armed us bags airfoil plots well making good performance seem right hand As result twentysecond Northrop Flying Wing Contest next year should vey close encounter responding advertisers mention read about Model Aviation edge wing tail surface Again gap shown joint Sketch C would provide joint poor strength well make rib align ment wing difficult task Sketch D shows same joint properly made provide maxi mum strength three most-used adhesives modelers work today aliphatic resins white glue cyanoacrylate CyA epoxy resin seems Chris modelers using more epoxy cyano expense ali phatic resins ie Elmers Carpenter Glue Titebond etc seem have fallen sumption epoxy cyano better use because strength speed curing However aliphatic resins can just strong job given proper curing time cases aliphatic glues will set suf ficiently hour permit handling hooded structure distinct advantages using phatic resins cost Using base approxi mately $10 can get either about four ounces cyano about 16 oz epoxy quart aliphatic resins Chris doesnt say should stop using epoxy cy ano adhesives suggesting ali phatic adhesives certainly have place modeling activities Hobbypoxy paint formula Petit Paint Co has recently issued another set its Hobbypoxy Military Color formulas new colors Lemon Yellow Willow Green used U S Navy carrier aircraft identifica tion during Thirties about mid-Thirties aircraft car rier assigned particular identifying color color painted tail surfaces planes based carrier carrier colors CV-2 LexingtonLemon Yellow FS 13655 CV-3 SaratogaWhite FS 17875 CV4 RangerWillow Green FS 14817 CV-5 YorktownInsignia Red FS 11136 CV-6 EnterpriseTrue Blue FS 15102 CV-7 WaspBlack FS 17038 Reference iden tification colors US Naval Fighters 1922 1980s published Aero Publishers new formulas noted above Lemon Yellow Willow Green follows Lemon Yellow FS 13655three parts H49 Cub Yellow two parts H47 Bright Yellow part H10 White two drops H33 Stinson Green per three ounces above mixed colors Willow Green FS 1481 7lO parts H47 Bright Yellow three parts H49 Cub Yellow two parts H24 Dark Blue identification colors glossy Use Hob bypoxy H02 Gloss H06 Quick Spray harden ers mixing colors should noted formulas True Blue color sometimes referred ANA 501 Light Blue FS 15102 RMcM Insignia Red Insignia White original ly published Petit Co 1984 Black stock Hobbypoxy color mulas did appear column can found RC Scale column Bob Dol ly Wischer January March 1985 issues MA formulas early colors may also obtained writing Hobbypoxy Products Pettit Paint Co Inc 36 Pine St Rockaway NJ 07866 Kits plans Stan Alexander Editor Repli FOAM WINS CORES SEND $350 FOR DESCRIPTIVE PRODUCT CATALOG muuu...uUEUEuEEEuuEuEuuuEEEEuuUUUUEEIU U U .- .-U U PRECISION MADE EXPANDED BEAD POLYSTYRENE REPLACEMENT WING S STAB CORES FOR ALL I POPULAR RIC AIRCRAFt OVER 250 DIFFERENT WINGS U IN STOCK FOR IMMEDIATE DELIVERY SO IF YOU NAVE U mA FAVORITE BIRD THAT NEEDS WING CALL OR U I U U _________________________ U U U U U U IUUUflUUUUUUUUUI 160 Model Aviation l*AjoJ1 KZ/G AIFG WING MFIL P0 BOX 33 CRYSTAL LAKE IL 60014 COMPOSITE MA TERIALS CARBON FIBER LAMINATES CARBON & KEVIAR MATS KEVLARI GRAPHITE FABRICS tsozlsqJLGLASSCLOTH CARBON & KEVLAR TAPES CARBON FIBER RIBBON GLASS FOAM PANELS GLASS END GRAIN BALSA PANELS CARBON FIBER END GRAIN BALSA PANELS BRAIDED CARBON CORD 074 CARBON FIBER FLEX PLATES SAFETPOXY Epoxy Lanilnglng Reski Send SASE mpIete listing products Aerospace Composite Products PO Box 16621 IMne CA 4 714 2501107 CL Scale/Boss Continued page 61 DOHAVILLAND BEAVER GIANT SCALE 96 4 CYCLE 90120 SEND S200 FOR COMPLETE CATALOG OF FINE KITS IKON NWST__ PO Box 566 Ca newsletter National Association Scale Aeromodelers says recent issue youve looking around kits market just dont see anything strikes fancy its time start look ing plans new project know must have three-views some pictures along anything can find chosen subject area interest Stan suggests best sources knows plans Bob Holman Plans PO Box 741 San Bernardino CA 92404 Bob offers three catalogs total price $9 first catalog includes Brian Taylor plans Scale drawings kinds aircraft us have heard aboutand also some obscure plans catalog includes such subjects F6F Hellcat A-scale Eindecker working wing warping 60-in ME-109F 75-in F4U-1 Corsair addition semikits include sanded wing ribs cowl canopy some plans second pians catalog has plans FF CL RC England subjects catalog avail able other US plans catalogs last catalog contains listings Scale drawingseverything Gossamer Alba tross Zeppelin Staaken RVI Whether subject current vintage good chance youll find Holman catalogs am always very receptive appreciative correspondence especially photos relat ing CL Scale Mail address given front column CL Aerobatics/Fancher Continued page 62 plan duplicate desired shape Tackglue fuse parts together prior installing wing tail entire fuselage shaped unit Protect areas dont wish sand masking tape Use modeling/razor plane shape nose tail long sweeping strokes Count number passes segment repeat number its symmetrical counterpart will insure reasonable synmietry shape nearly desired continue refining coarse sandpaper work way down fine paper shape surface finish finalized Glue sandpaper variously sized dowels use shaping concave areas Whenever possible use sanding block ensure uniform pressure convenience cover wing tail whether silkspan full-bore Pro Stunt finish MonoKote-type covering before final assembly papering overlap center section provide uniform rigidity full span MonoKote coverings should carefully tached within / fuselage will glued thus allowing fillet overlap covering assure sealing edge After assembling major components recognizable Stunt ship cover nose back high point wing ultralightweight fi berglass cloth using Hobbypoxy Formula II glue thinned brushing consistency Hobbypoxy thinner Use excess fuel-proof engine tank compartments epoxy thor oughly cured sand lightly medium paper remove oily residue apply two fullstrength coats clear dope Now cover fuse vertical tail light weight silkspan Apply paper fuse side time using spray bottle water moisten paper mold body WRAM SHOW88 1988 will once again present RC Plane Car Beat Show Yonkers Raceway mited parking Its 20th annual show its sure biggest ever Thia years WRAM Show going largest yet Well over 150 manufacturers other eshibitors have already signed up bring everything thats new hobby . kits engines radios accessories everything between famous Swap Shop will full operation thousands items including built-up planes cars boats almost new radios engines something lust about everyone ADVANCED TICKET SALES Save time order tickets now send check money order made payable WRAM Inc allow 3 weeks check clearance selfaddressed stamped envelope Ed Alesis 21 Pamela Road Peekskill NY 10566 day Ticket Two day Ticket under 12 yrs day 4 te,,,,n IZZD ~7Fi STATIC COMPETITION modeis must operable RC controlled Trophies andlor prizes awarded VCRs awarded two categories Best-in-Show flying Best-is show non-flying Top line RC systems 1st piece category Trophies eli other winners OvAl SCALE BC BSATS POST WSSI IMiIIIaIYI IMilunli POST 02W SCALE RC BOATS lhOMIIiltnhl INOIl-tiIIjIaOl PATTERN RACING B/C BOATS GANT SCALE STANO-OFF SCALE SO TIMERS vc CAnS 1/12 scale JANIOR EVENTSOC CABS 1/10 SCAIB SPORT vC CARS 1/I shoe SLISERS lolget HELICOPTERS BESTI1i-SAOW EIIItS may ImilOt tut0 spat aoalatIIIIy obtain pre-regist ration Static Competi tinT forms write linclude self-addressed stamped enoelopel Allen Reinherdt 2 Doagias Drive Pieasantviile NY 10570 Judging takes piece sunday afternoon DIRECTIONS Tonkert BacnwaA S located n snuthern woatchoster County along Beetern Nohhhound Side New TorN state Thruway tOll PROM THE NORTH I-aT South Ecit 4 5eoice oad 1030 ttatto lIght Turn lert iooer Thruwdyl toentet park ne area PROM THE SOUTht lOT Noth Ecit 2 tat trattlc lIght turn Ight ente perkng area Youll surprised much able work material its wet Adhere using mixture 75% thinner 25% dope dry remove excess paper folding back itself sanding #320 paper until separates leaving nicely feathered edge lightly pen ciled centerline will help job neatly second side same way folding back paper centerline feathering away edge 320 paper paper serves two purposes First adds tremendous strength Second covers coarse balsa grain need oniy apply enough flu lercoat fill grain paper Apply sever al coats 50/50 dope/thinner mixture entire airframe looking condition no open pores paper yet glossy Now add fillets Sig Epoxolite equal fillets - light extremely strong Entries accepted until 12 Noon Sunday Special admission area will prooided both days static display con testants built-up models Registration models will start 830 am morning SWAP SHOP WRAMs Swap shop has become maior show attractions thoasands individeal items changing hands help eliminate registration crush Swap Shop will provide preregistration forms receive forms send self-addressed stamped envelope John Isbister 4 Devon Rd Larchmont NY 10538 SPECIAL NOTE year will no restrictions namber built-up models regis trant may piece Swap Shop further information write enclose sell-addressed stamped envelope call Jerry Judge Nancy Road Brewster tOY 10509 914-279-2717 WESTCHESTER RADIO AEROMODELERS INC Cut tip off large nylon glue gun leaving A-in hole use apply Epoxolite Use wet dowel rough-shaping fillet final modeling finger kept very wet prevent dragging fillet material Epox olite should completely shaped still uncured Once cured too hard shape Allow fillets cure two full days use Sig Airplane Cleaner DuPont PrepSol clean oily epoxy residue completely Sand entire ship lightly #400 paper used dry Now must make decision what type finish desire recommend use dope either Sig Aero Gloss depending clear have used epoxy paint K&B Super Poxy current favorite dope finishes somewhat lighter can buffed slight ly lustrous final finish whereas epoxy finishes infinitely durable will March 1988 161 21/2D lOAM to6PM MECA Model Engine Collectors Association invites visit Flea Market & Display Antique Model Engines during weekend WRAM Show MECA activity will Saturday Evening February 27 1987 400 pm 1000 pm VFW Hall Yonkers New York Yonkers VFW City Post #1 666 574 Yonkers Avenue 314 mile northwest NY State Thruway 1-87 Yonkers Raceway 1/4 mile southeast Cross County Parkway Admission $500 plus $200 table space desired
Edition: Model Aviation - 1988/03
Page Numbers: 61, 160, 161
BONDING AND ADHESIVES subjects Chris Shearer member Orbiting Ea gles Omaha has some words us suspect writing Chris Scale Combat comments bonding adhesives apply us Chris starts comments indicating us certainly aware importance adhesives aware impor tance bond bond made up adhe sive contact between surfaces being bonded Most adhesives found today extreme ly good bonding two materials long materials make good contact problem occurs two materials being bonded make good contact Chris goes relate own expe rience poor bonding can costly Some time ago built number Slow Combat planes some spots surfaces glued did make good contact later found planes poor bonds did stand up stresses hard landings crashes thus limiting some models flying times lesson learned whether youre nov ice experienced builder importance making sure surfaces bonded make proper contact Dont fall assumption adhesive will fill gaps between surfaces accompanying sketches intended il lustrate points made Chris Sketches B type joint might expect find putting together bulkheads ap plying sheeting wing tail surface Sketch shows quite exaggerated ragged edge would make bonding two surfaces almost impossible large amounts glue wont make up gaps between surfaces POOR JOINT RAGGED EDGE [v TOO MUCH SPACE GOOD JOINT 100% CONTACT - GOOD FIT cant obtain maximum strength structural joint unless pieces fit well no matter what adhesive use Bills column discusses fact length month Sketch B shows joint 100% contactSketches C D illustrate type joint maximum strength can obtained fromconstruction found leading trailing bonding adhesiveContinued nape 160 March 1988 61 Control Line Scale Bill Boss 77-06 269th Street New Hyde Parke NY 11040 four fliers competed Scale event 87 Southwestern CL Championships Dallas TX Pilots/planes L-R Jason Stolly/prof lie P-51 Jack Stolly/P-38 Nats winner Eric Tomchiklprofile P38 Jeff Etheridge/Curtiss P-40 members Dallas Model Aircraft Association Photo Gene Hempel Note P-40 actually Stunter Mike Welshans sends two photos L Bill Logan London Ontario Canada 1/4-scale Volksplane Wingspan 7 ft Seafire R work Bill Gielow Sterling Heights Ml made highly modified Sterling kit Power Fox 60 Cr towline launch techniques achieve results approach coupled very light wing loading enabled him max quite easily some impressive initial altitudes airfoils super-sophisticated todays standards probably heart continuing success field Owing touchiness trim very serious center-of-gravity problems present Rubber categories flying wings still disadvantage conven tional AMA competition configura tion continues Wainfans modeling priority and well probably see machines continue capture some trophies pitted against orthodox models Whether its wing canard hybrid design sets apart different things air always fascinate Under canopy extremes heat Taft 1987 certainly far bored subject hand fact terrific time testing out theories against actual performance learned lot gulped Ga torade gallon prepared next year extra-generous Wainfans supplied liberal quantities one-onone help armed us bags airfoil plots well making good performance seem right hand As result twentysecond Northrop Flying Wing Contest next year should vey close encounter responding advertisers mention read about Model Aviation edge wing tail surface Again gap shown joint Sketch C would provide joint poor strength well make rib align ment wing difficult task Sketch D shows same joint properly made provide maxi mum strength three most-used adhesives modelers work today aliphatic resins white glue cyanoacrylate CyA epoxy resin seems Chris modelers using more epoxy cyano expense ali phatic resins ie Elmers Carpenter Glue Titebond etc seem have fallen sumption epoxy cyano better use because strength speed curing However aliphatic resins can just strong job given proper curing time cases aliphatic glues will set suf ficiently hour permit handling hooded structure distinct advantages using phatic resins cost Using base approxi mately $10 can get either about four ounces cyano about 16 oz epoxy quart aliphatic resins Chris doesnt say should stop using epoxy cy ano adhesives suggesting ali phatic adhesives certainly have place modeling activities Hobbypoxy paint formula Petit Paint Co has recently issued another set its Hobbypoxy Military Color formulas new colors Lemon Yellow Willow Green used U S Navy carrier aircraft identifica tion during Thirties about mid-Thirties aircraft car rier assigned particular identifying color color painted tail surfaces planes based carrier carrier colors CV-2 LexingtonLemon Yellow FS 13655 CV-3 SaratogaWhite FS 17875 CV4 RangerWillow Green FS 14817 CV-5 YorktownInsignia Red FS 11136 CV-6 EnterpriseTrue Blue FS 15102 CV-7 WaspBlack FS 17038 Reference iden tification colors US Naval Fighters 1922 1980s published Aero Publishers new formulas noted above Lemon Yellow Willow Green follows Lemon Yellow FS 13655three parts H49 Cub Yellow two parts H47 Bright Yellow part H10 White two drops H33 Stinson Green per three ounces above mixed colors Willow Green FS 1481 7lO parts H47 Bright Yellow three parts H49 Cub Yellow two parts H24 Dark Blue identification colors glossy Use Hob bypoxy H02 Gloss H06 Quick Spray harden ers mixing colors should noted formulas True Blue color sometimes referred ANA 501 Light Blue FS 15102 RMcM Insignia Red Insignia White original ly published Petit Co 1984 Black stock Hobbypoxy color mulas did appear column can found RC Scale column Bob Dol ly Wischer January March 1985 issues MA formulas early colors may also obtained writing Hobbypoxy Products Pettit Paint Co Inc 36 Pine St Rockaway NJ 07866 Kits plans Stan Alexander Editor Repli FOAM WINS CORES SEND $350 FOR DESCRIPTIVE PRODUCT CATALOG muuu...uUEUEuEEEuuEuEuuuEEEEuuUUUUEEIU U U .- .-U U PRECISION MADE EXPANDED BEAD POLYSTYRENE REPLACEMENT WING S STAB CORES FOR ALL I POPULAR RIC AIRCRAFt OVER 250 DIFFERENT WINGS U IN STOCK FOR IMMEDIATE DELIVERY SO IF YOU NAVE U mA FAVORITE BIRD THAT NEEDS WING CALL OR U I U U _________________________ U U U U U U IUUUflUUUUUUUUUI 160 Model Aviation l*AjoJ1 KZ/G AIFG WING MFIL P0 BOX 33 CRYSTAL LAKE IL 60014 COMPOSITE MA TERIALS CARBON FIBER LAMINATES CARBON & KEVIAR MATS KEVLARI GRAPHITE FABRICS tsozlsqJLGLASSCLOTH CARBON & KEVLAR TAPES CARBON FIBER RIBBON GLASS FOAM PANELS GLASS END GRAIN BALSA PANELS CARBON FIBER END GRAIN BALSA PANELS BRAIDED CARBON CORD 074 CARBON FIBER FLEX PLATES SAFETPOXY Epoxy Lanilnglng Reski Send SASE mpIete listing products Aerospace Composite Products PO Box 16621 IMne CA 4 714 2501107 CL Scale/Boss Continued page 61 DOHAVILLAND BEAVER GIANT SCALE 96 4 CYCLE 90120 SEND S200 FOR COMPLETE CATALOG OF FINE KITS IKON NWST__ PO Box 566 Ca newsletter National Association Scale Aeromodelers says recent issue youve looking around kits market just dont see anything strikes fancy its time start look ing plans new project know must have three-views some pictures along anything can find chosen subject area interest Stan suggests best sources knows plans Bob Holman Plans PO Box 741 San Bernardino CA 92404 Bob offers three catalogs total price $9 first catalog includes Brian Taylor plans Scale drawings kinds aircraft us have heard aboutand also some obscure plans catalog includes such subjects F6F Hellcat A-scale Eindecker working wing warping 60-in ME-109F 75-in F4U-1 Corsair addition semikits include sanded wing ribs cowl canopy some plans second pians catalog has plans FF CL RC England subjects catalog avail able other US plans catalogs last catalog contains listings Scale drawingseverything Gossamer Alba tross Zeppelin Staaken RVI Whether subject current vintage good chance youll find Holman catalogs am always very receptive appreciative correspondence especially photos relat ing CL Scale Mail address given front column CL Aerobatics/Fancher Continued page 62 plan duplicate desired shape Tackglue fuse parts together prior installing wing tail entire fuselage shaped unit Protect areas dont wish sand masking tape Use modeling/razor plane shape nose tail long sweeping strokes Count number passes segment repeat number its symmetrical counterpart will insure reasonable synmietry shape nearly desired continue refining coarse sandpaper work way down fine paper shape surface finish finalized Glue sandpaper variously sized dowels use shaping concave areas Whenever possible use sanding block ensure uniform pressure convenience cover wing tail whether silkspan full-bore Pro Stunt finish MonoKote-type covering before final assembly papering overlap center section provide uniform rigidity full span MonoKote coverings should carefully tached within / fuselage will glued thus allowing fillet overlap covering assure sealing edge After assembling major components recognizable Stunt ship cover nose back high point wing ultralightweight fi berglass cloth using Hobbypoxy Formula II glue thinned brushing consistency Hobbypoxy thinner Use excess fuel-proof engine tank compartments epoxy thor oughly cured sand lightly medium paper remove oily residue apply two fullstrength coats clear dope Now cover fuse vertical tail light weight silkspan Apply paper fuse side time using spray bottle water moisten paper mold body WRAM SHOW88 1988 will once again present RC Plane Car Beat Show Yonkers Raceway mited parking Its 20th annual show its sure biggest ever Thia years WRAM Show going largest yet Well over 150 manufacturers other eshibitors have already signed up bring everything thats new hobby . kits engines radios accessories everything between famous Swap Shop will full operation thousands items including built-up planes cars boats almost new radios engines something lust about everyone ADVANCED TICKET SALES Save time order tickets now send check money order made payable WRAM Inc allow 3 weeks check clearance selfaddressed stamped envelope Ed Alesis 21 Pamela Road Peekskill NY 10566 day Ticket Two day Ticket under 12 yrs day 4 te,,,,n IZZD ~7Fi STATIC COMPETITION modeis must operable RC controlled Trophies andlor prizes awarded VCRs awarded two categories Best-in-Show flying Best-is show non-flying Top line RC systems 1st piece category Trophies eli other winners OvAl SCALE BC BSATS POST WSSI IMiIIIaIYI IMilunli POST 02W SCALE RC BOATS lhOMIIiltnhl INOIl-tiIIjIaOl PATTERN RACING B/C BOATS GANT SCALE STANO-OFF SCALE SO TIMERS vc CAnS 1/12 scale JANIOR EVENTSOC CABS 1/10 SCAIB SPORT vC CARS 1/I shoe SLISERS lolget HELICOPTERS BESTI1i-SAOW EIIItS may ImilOt tut0 spat aoalatIIIIy obtain pre-regist ration Static Competi tinT forms write linclude self-addressed stamped enoelopel Allen Reinherdt 2 Doagias Drive Pieasantviile NY 10570 Judging takes piece sunday afternoon DIRECTIONS Tonkert BacnwaA S located n snuthern woatchoster County along Beetern Nohhhound Side New TorN state Thruway tOll PROM THE NORTH I-aT South Ecit 4 5eoice oad 1030 ttatto lIght Turn lert iooer Thruwdyl toentet park ne area PROM THE SOUTht lOT Noth Ecit 2 tat trattlc lIght turn Ight ente perkng area Youll surprised much able work material its wet Adhere using mixture 75% thinner 25% dope dry remove excess paper folding back itself sanding #320 paper until separates leaving nicely feathered edge lightly pen ciled centerline will help job neatly second side same way folding back paper centerline feathering away edge 320 paper paper serves two purposes First adds tremendous strength Second covers coarse balsa grain need oniy apply enough flu lercoat fill grain paper Apply sever al coats 50/50 dope/thinner mixture entire airframe looking condition no open pores paper yet glossy Now add fillets Sig Epoxolite equal fillets - light extremely strong Entries accepted until 12 Noon Sunday Special admission area will prooided both days static display con testants built-up models Registration models will start 830 am morning SWAP SHOP WRAMs Swap shop has become maior show attractions thoasands individeal items changing hands help eliminate registration crush Swap Shop will provide preregistration forms receive forms send self-addressed stamped envelope John Isbister 4 Devon Rd Larchmont NY 10538 SPECIAL NOTE year will no restrictions namber built-up models regis trant may piece Swap Shop further information write enclose sell-addressed stamped envelope call Jerry Judge Nancy Road Brewster tOY 10509 914-279-2717 WESTCHESTER RADIO AEROMODELERS INC Cut tip off large nylon glue gun leaving A-in hole use apply Epoxolite Use wet dowel rough-shaping fillet final modeling finger kept very wet prevent dragging fillet material Epox olite should completely shaped still uncured Once cured too hard shape Allow fillets cure two full days use Sig Airplane Cleaner DuPont PrepSol clean oily epoxy residue completely Sand entire ship lightly #400 paper used dry Now must make decision what type finish desire recommend use dope either Sig Aero Gloss depending clear have used epoxy paint K&B Super Poxy current favorite dope finishes somewhat lighter can buffed slight ly lustrous final finish whereas epoxy finishes infinitely durable will March 1988 161 21/2D lOAM to6PM MECA Model Engine Collectors Association invites visit Flea Market & Display Antique Model Engines during weekend WRAM Show MECA activity will Saturday Evening February 27 1987 400 pm 1000 pm VFW Hall Yonkers New York Yonkers VFW City Post #1 666 574 Yonkers Avenue 314 mile northwest NY State Thruway 1-87 Yonkers Raceway 1/4 mile southeast Cross County Parkway Admission $500 plus $200 table space desired
