C onE rol S Re Navy Carrier Richard Perry IN MY April column mentioned potential problem pump-equipped engines mounted horizontally rather vertically tend go rich flight due centrifugal acceleration because pump backplate inboard carb thus causing increased fuel pressure carb models speed increases Perry pump carburetor has means compensating effect carbs have small weight fuel passage intended restrict fuel flow engine inverted thus avoiding rich setting An adjusting screw provided control amount restriction use sidemounted engine CL model adjustment can used control in-flight mixture screw richen mixture screw out lean mixture Once set mixture should need no major adjustments unless fuel altitude should change considerably Some control flight mixture will possible using normal needle valve GS Profile kits Ijust received letter Bob Smurthwaite GS Products contained some good news Carrier fliers planning reissue Bearcat Skyraider kits Profile Carrier kits have extremely popular past have proven successful competitionincluding Nats win two records GS kit parts preshapedeven having stabilizer edges rounded tapered hinge slots cutso required light sanding after assembly details production schedule price have finalized yet Look Beginners corner tail hook single feature seperates Carrier models other CL models simple devices usually held up catch loop arrangement like shown photo wire catch hook slides piece brass tubing wire loop soldered pushrod catch could just easily pushrod loop tail hook wire catch slides tubing normal ranges elevator travel pilot wishes release hook momentarily applies full up commonly full down wire slides Out loop hook free fall hook held down spring rubberbands positive stop should provided hook extended between 450 600 horizontal spring tension Continued page 132 54 Model Aviation Tfle tail hook installation Dick Starks Airabonita Profile Carrier model typical Held up small length tubing elevator pushrodit released full up elevator extended spring tension anchors plywood insert fuselage n.Du nuyruu uv u1 rurey rireiiy rurarrIen nis superDIy-crarrea moaei usea LIass II lie also has Class 1 Profile versions Photos below depict Bob makes light warp-free wings models uses balsa sheeting over ribscarefully selects wood avoids use excess glue Great must assure proper alignment adding sheeting Bobs wing jig shown bare CL wing place R NEW FOURMOST PRODUCTS Bulk head Fitting simple method feed fuel vent tubes through solid bulkheads Drill hole No 18 drill size buikhead firewall up 3/B thick Provides seaied tank compartment eliminates fuelo" 4$ line chaffing Coior coded identification MOULDED NYLON FUELPROOF Weight GM EACH Size 3/32 10 PRICE 2for$195 FOURMOST PRODUCTS 4040 24th Ave Forest Grove OR 97116 talcum powder weight significant factor could probably save two three ounces given medium-sized aircraft Some people may find doesnt work satisfaction however feel worth experiment ing could possibly save overall five six ounces off aircraft because predominant amount paint applied rear center gravity Any other finishing techniques have please feel free submit publica tion Inclosing would like remind readers please send pictures sketches ideas publication need good input everybody perpetuate love Scale modeling Please send information Richard Byron 2506 So 16 1st Circle Omaha NE 68130 CL Navy Carrier/Perry Continued page 54 should light enough allow model settle onto its tail skid model placed smooth surface hook extended end hook should form about 450 angle main part hook way hook can engage arresting cables Bomb Release Fourmost Bombreiease mechanism simple lIght weIght device ideai fun-fly events Fasten unit plane screws provided Attach Springioaded latch thread connect throttle rudder servo Corrosion problem unit molded nylon spring stainless Weight 1/10 OUNCE PRICE $250 503 357-2732 AVAILABLE NOW Prototype Built Flight Tested JB Speosal MK III 84 Mono 78 Pipe Weight 18 lbs2195 TrasI Air 2000 105 Classc Scle Bipla0e 22 lbs 2295 irenral Ak 4000 99 RodaI Eng Classic Bipe 23 lbs2299 Foirke D-VII 88 Genran WA Fighte Bipe 23 lbs2495 Ceseng Sos topw4h Pop 80 Pipe Sopreith Tripehosed 80 Triplane Waco UFF 790 Pipe Waco ATO Lyjock Version 90 Bipe Nreoporr 11 Pebe 85 Pipe 35 Scole Fokker 081 72 Triplone Plans shipped U PS Parcel Post Please add $300 postarje hand/mo fastest sevice send pOstei money order No co D orders sent BEHRENS PLAN SERVICE 31-27 Nealy Ave. Far Rockaway NY 11691 in212 337-6987in model normal three-point attitude well can model flying just above deck hook can no one-third length fuselage should made 3/32-in music wire will strong enough resist straightening out engaging arresting cable tail hook can attached model variety ways photo shows typical installation using -in plywood reinforcements fuselage hardwood block can inset fuselage serve same purpose Hook placement should such end hook forward tail skid/wheel avoid interference missed arresting cables Scratch building very few kits available events scratch building almost necessity Original designs appear contests add interest Carrier flying both contestants spectators standard Class & II models sheeted solid wing construction Strong light wings can carved soild balsa getting balsa required thickness density requires either special order inordinant amount luck Foam cores have used models straight-tapered wings have advantage allowing use waste material core provide support wing sheeting during gluing processthe result being perfectly warp-free wing Built-up sheeted construction offers best opportunity obtaining light structure care used wood selection use glue Bob Reynolds uses jig shown accompaning photos build warp-free perfectlyaligned wings Fairey Firefly models jig allows complete wing dihedral built unit method worth considering especially individual family club antici pates building model particular design Richard L Perry 416 Woodhill Drr Golds boro NC 27530 CL Aerobatics/Paul Continued page 55 hear just remember anytime run plugs products manufactured individuals assuming certain amount risk ordering folks info rmation Stunt orPA MPA contact Wynn Paul 1640 MaywickDr Lexington KY 40504 CL Speed/Hempel Continued page 57 2-in long Flare end tubing using flaring tool Cut small end cone off place cone 5/16-in OD Use taper reamer put sharp edge front cone headpiece should fit cone snugly rocking therefore no jig required parts brazed Clean cone headpipe soap water dry Position headpipe small end cone place base cone flat surface brazing Braze headpipe cone using same procedure described before After cone cools wash soap water remove flux Tailpipe-to-cone Cut 7/32-in ID tubing 11-in long Flare end tubing using flaring tool Cut small end cone off cone 7/32-in OD tailpipe should fit cone snugly rocking therefore no jig required parts brazed Clean cone tailpipe soap water dry Position tailpipe small end cone place base cone flat surface brazing Braze tailpipe cone using same procedures described before After cone cools wash soap water remove flux Use taper reamer working inside cone enlarge hole 7/32-in ID Final Assembly have very simple jig holds two sections pipe perfect alignment being brazed jig made two metal rods 5/16-in OD 3/16-in OD least 12-in long end 5/16-in rod center drill 3/16in hole 1-in deep should done lathe large diameter end front cone should slightly smaller large diameter rear cone Cut file large end front cone will just fit inside large end rear cone parts should thoroughly cleaned soap water dried Fit two rods together Slide headpiece onto 5/16-in rod tailpipe onto 3/16-in rod Use 7/32-in OD tubing spacer fit between tailpipe rod joint 132 Model Aviation RINDYS UNIFLOW TUNT TAD PROFILE*COMBAT*RAT* WIDE & NARROW WEDGE 2. 6 oz Capacities Standard Vent available CUSTOM BLEND FUEL 5--40%Njtro Send 25cents specs CAROLINA TAFFINDER 8345 Delhi Road Charleston Hgts SC 29405
Edition: Model Aviation - 1981/06
Page Numbers: 54, 132
C onE rol S Re Navy Carrier Richard Perry IN MY April column mentioned potential problem pump-equipped engines mounted horizontally rather vertically tend go rich flight due centrifugal acceleration because pump backplate inboard carb thus causing increased fuel pressure carb models speed increases Perry pump carburetor has means compensating effect carbs have small weight fuel passage intended restrict fuel flow engine inverted thus avoiding rich setting An adjusting screw provided control amount restriction use sidemounted engine CL model adjustment can used control in-flight mixture screw richen mixture screw out lean mixture Once set mixture should need no major adjustments unless fuel altitude should change considerably Some control flight mixture will possible using normal needle valve GS Profile kits Ijust received letter Bob Smurthwaite GS Products contained some good news Carrier fliers planning reissue Bearcat Skyraider kits Profile Carrier kits have extremely popular past have proven successful competitionincluding Nats win two records GS kit parts preshapedeven having stabilizer edges rounded tapered hinge slots cutso required light sanding after assembly details production schedule price have finalized yet Look Beginners corner tail hook single feature seperates Carrier models other CL models simple devices usually held up catch loop arrangement like shown photo wire catch hook slides piece brass tubing wire loop soldered pushrod catch could just easily pushrod loop tail hook wire catch slides tubing normal ranges elevator travel pilot wishes release hook momentarily applies full up commonly full down wire slides Out loop hook free fall hook held down spring rubberbands positive stop should provided hook extended between 450 600 horizontal spring tension Continued page 132 54 Model Aviation Tfle tail hook installation Dick Starks Airabonita Profile Carrier model typical Held up small length tubing elevator pushrodit released full up elevator extended spring tension anchors plywood insert fuselage n.Du nuyruu uv u1 rurey rireiiy rurarrIen nis superDIy-crarrea moaei usea LIass II lie also has Class 1 Profile versions Photos below depict Bob makes light warp-free wings models uses balsa sheeting over ribscarefully selects wood avoids use excess glue Great must assure proper alignment adding sheeting Bobs wing jig shown bare CL wing place R NEW FOURMOST PRODUCTS Bulk head Fitting simple method feed fuel vent tubes through solid bulkheads Drill hole No 18 drill size buikhead firewall up 3/B thick Provides seaied tank compartment eliminates fuelo" 4$ line chaffing Coior coded identification MOULDED NYLON FUELPROOF Weight GM EACH Size 3/32 10 PRICE 2for$195 FOURMOST PRODUCTS 4040 24th Ave Forest Grove OR 97116 talcum powder weight significant factor could probably save two three ounces given medium-sized aircraft Some people may find doesnt work satisfaction however feel worth experiment ing could possibly save overall five six ounces off aircraft because predominant amount paint applied rear center gravity Any other finishing techniques have please feel free submit publica tion Inclosing would like remind readers please send pictures sketches ideas publication need good input everybody perpetuate love Scale modeling Please send information Richard Byron 2506 So 16 1st Circle Omaha NE 68130 CL Navy Carrier/Perry Continued page 54 should light enough allow model settle onto its tail skid model placed smooth surface hook extended end hook should form about 450 angle main part hook way hook can engage arresting cables Bomb Release Fourmost Bombreiease mechanism simple lIght weIght device ideai fun-fly events Fasten unit plane screws provided Attach Springioaded latch thread connect throttle rudder servo Corrosion problem unit molded nylon spring stainless Weight 1/10 OUNCE PRICE $250 503 357-2732 AVAILABLE NOW Prototype Built Flight Tested JB Speosal MK III 84 Mono 78 Pipe Weight 18 lbs2195 TrasI Air 2000 105 Classc Scle Bipla0e 22 lbs 2295 irenral Ak 4000 99 RodaI Eng Classic Bipe 23 lbs2299 Foirke D-VII 88 Genran WA Fighte Bipe 23 lbs2495 Ceseng Sos topw4h Pop 80 Pipe Sopreith Tripehosed 80 Triplane Waco UFF 790 Pipe Waco ATO Lyjock Version 90 Bipe Nreoporr 11 Pebe 85 Pipe 35 Scole Fokker 081 72 Triplone Plans shipped U PS Parcel Post Please add $300 postarje hand/mo fastest sevice send pOstei money order No co D orders sent BEHRENS PLAN SERVICE 31-27 Nealy Ave. Far Rockaway NY 11691 in212 337-6987in model normal three-point attitude well can model flying just above deck hook can no one-third length fuselage should made 3/32-in music wire will strong enough resist straightening out engaging arresting cable tail hook can attached model variety ways photo shows typical installation using -in plywood reinforcements fuselage hardwood block can inset fuselage serve same purpose Hook placement should such end hook forward tail skid/wheel avoid interference missed arresting cables Scratch building very few kits available events scratch building almost necessity Original designs appear contests add interest Carrier flying both contestants spectators standard Class & II models sheeted solid wing construction Strong light wings can carved soild balsa getting balsa required thickness density requires either special order inordinant amount luck Foam cores have used models straight-tapered wings have advantage allowing use waste material core provide support wing sheeting during gluing processthe result being perfectly warp-free wing Built-up sheeted construction offers best opportunity obtaining light structure care used wood selection use glue Bob Reynolds uses jig shown accompaning photos build warp-free perfectlyaligned wings Fairey Firefly models jig allows complete wing dihedral built unit method worth considering especially individual family club antici pates building model particular design Richard L Perry 416 Woodhill Drr Golds boro NC 27530 CL Aerobatics/Paul Continued page 55 hear just remember anytime run plugs products manufactured individuals assuming certain amount risk ordering folks info rmation Stunt orPA MPA contact Wynn Paul 1640 MaywickDr Lexington KY 40504 CL Speed/Hempel Continued page 57 2-in long Flare end tubing using flaring tool Cut small end cone off place cone 5/16-in OD Use taper reamer put sharp edge front cone headpiece should fit cone snugly rocking therefore no jig required parts brazed Clean cone headpipe soap water dry Position headpipe small end cone place base cone flat surface brazing Braze headpipe cone using same procedure described before After cone cools wash soap water remove flux Tailpipe-to-cone Cut 7/32-in ID tubing 11-in long Flare end tubing using flaring tool Cut small end cone off cone 7/32-in OD tailpipe should fit cone snugly rocking therefore no jig required parts brazed Clean cone tailpipe soap water dry Position tailpipe small end cone place base cone flat surface brazing Braze tailpipe cone using same procedures described before After cone cools wash soap water remove flux Use taper reamer working inside cone enlarge hole 7/32-in ID Final Assembly have very simple jig holds two sections pipe perfect alignment being brazed jig made two metal rods 5/16-in OD 3/16-in OD least 12-in long end 5/16-in rod center drill 3/16in hole 1-in deep should done lathe large diameter end front cone should slightly smaller large diameter rear cone Cut file large end front cone will just fit inside large end rear cone parts should thoroughly cleaned soap water dried Fit two rods together Slide headpiece onto 5/16-in rod tailpipe onto 3/16-in rod Use 7/32-in OD tubing spacer fit between tailpipe rod joint 132 Model Aviation RINDYS UNIFLOW TUNT TAD PROFILE*COMBAT*RAT* WIDE & NARROW WEDGE 2. 6 oz Capacities Standard Vent available CUSTOM BLEND FUEL 5--40%Njtro Send 25cents specs CAROLINA TAFFINDER 8345 Delhi Road Charleston Hgts SC 29405