SOONER later Scale RC builder will build model has have some real metal ex ternal parts Painted balsa vacuum-formed fi berglass pieces will just Ryan ST Hawker Hart Spirit St Louis Fokker Emdecker needs some real metal pass muster youre like other balsa cutters sheet metal can little intimidating few ideas may help get started Youll find very little practice sheet metal work will another basic RC Scale modeling tasks Starting small simple parts found alu minum much easier use feared has several big advantages too Aside looking much better au thentic balsa plastic small parts actually faster easier make aluminum Another advantage especially cowl parts aluminum about fuel-proof can get start pick some simple panels cowl pieces vents fairings etc give try aluminum lithoplate commonly used printers very lightweight thin usually 005 thick very hard aluminum sheet Since price material has risen rather sharply recent past little harder get Scrap metal places now buy used plates recycling will have large quantities few dollars lifetime supply can Some friendly print ing places may actually still give away used plates dont count Avoid newer kind plate has gray USING MALE FORM BLOCK WOOD FORM- -- 7ICLAMPALUMI BLANK TO FORMI WITH CLAMPS OR METAL STRAP OWLYPEEN -ALUM OVER FORM - IF ALUM BLANK HARDENSLt%f~ REMOVE FROM FORM & ANNEAL SruIi gives complete description using metal-forming technique column USING FEMALE FORM BLOCK PINE BLOCK FORM Another metal-forming technique also de scribed months column Don Sruli USE BALL PEEN HAMMER TO SHAPE INTO FORM enamel some kind both sides lieve stuff will nor come off printing ink im pressions usually found plates can removed lacquer thinner acetone simplest use lithoplate flat single-curvature panels have sheeted balsa case simply cut paper pattern first get exactly right shape cut lithoplate shape using scissors X-Acto knife Attach plate contact cement around outer edge use thick cyano have also used Wilhold RC-56 glue good results Before applying such panels can add ri vets making small dents reverse side lithoplate pointed tool Rows lievable rivets can easily simulated aid dressmakers marking toola device 50 Model Aviation Radio Confrol Scale Don SruII 941 Klmberwlcke Rd Mclean VA 22101 ruIIs quarter-scale WW Fokker Eindecker makes use of materials tech niques described months column scale machine turning pattern helps ob scure dents surface irregularities hand-formed sheet metaljust prototypel PRESS IN ALUM HOLD BY HAND Female form carved scrap pine block used form Elndeckers fuel guage fairing 025-in soft aluminum sheet Small Dremel wire brush used medium speed Moto-Tool produced authenticlooking machine turning patterns Eindeckers aluminum cowls panels resembles metal gear attached end handle much like pizza cutter Rolling gear end lithoplate using straightedge guide will produce quick line evenly spaced rivets other side Panels tairings have small amount double curvature compound curvature can formed gently burnishing plate held sheet soft balsa can use fin ger pressure employing small piece flannel other cloth keep friction down firm pressure will soon produce slight compound curve sheet soft balsa yields under metal sharper curves try using spoon plas tic burnishing tool found art stores very deep curves hard lithoplate will have hammered shape Before deep forming plate must softened annealing simple butane torch can used heat plate Hold Continued page iSO timer ned modeling rlss Robin 049 EngInes -Channel R/C 41 Wingspan Electric Power Optional saasa Vety few lull scale siroreg ideally suited model flight 55 appealing old Curtiss Robin born spruce linen age beautifully proportioned rubber electric glow engines Esay fun build frainerlike performence Flyline Models Catalog 505Phone 7031 3739093 INE MODELS INC PO Eon 2136 FaIrfax VIrginIa 22031 USA VINTAGE -C ILAN CONSOLIDATED PBY-5A CATALINA 9 FT WING SPAN ALL RIhS B FULL FORMERS SHOWN ON PLANS FLASVIC ENGCOWLS siOSO PR CLEAR GUN BLISTERS $ 760 PR 5 LARGE ILAN SHEETS s $895 6FT WING SPAN MODEL PBY-5A ENGINE COWLS $750 PR Plans $495 GUN BLISTERS PR ADO $ 300 POSTAGE CATALOGOVER 50 PLANS $100 DEALERS WRITE w SID MORGAN 13157 ORMOND BELLEVILLE MICH 48111 USA SAVE YOUR FIELD [ SNuF-LER muffler Isa lOw coec easy Install light weight sound reducIng muffler wIth rto performance penalty answer AMA muffler rule suggestIons saving flying fIelds Meets AMA muffler rule suggestIons 3 10 decIbels quieter siocl muffler No power lose wIth poselble 300-500 RPM Increase Improves engine Idle s better fuel economy Easgy attached 25108 stools mufflers Heat corrosIon resistant BlacK 5 COSt finish No special adapters requIred WeIghs 36 oza Fis ASF BRAT ENVA FOX HF PVINE 155 OS MAX ROYAL VS SuPSF TiORS rtuWers SNUF-LER mufflers JTEC IN-COWL mufflers ann00oruuoounnowe 40990Moo90o,o395 99909 ho eS 39 r49rn 2 us NUF-iER Muffler can 00 uSed 090r1 99 900 T009 00 4T903 e9 7910040900 scale aocran ortn IISC INCO WI 4090090 hi 9000 70999 300 90000199000 mOOS000 4r0003 FOr 0OW9 TOO rool99nnn 2e90mufflers clamp used tO Dolt tOTe~0S TlIrmuffler Ore 000cm fuselage4790201 SOOn225 S Connected tO JTSC muffler479000019 SOOntun 0reoOu00tf necorene fuoing spoearance sake can removed alter flying 09 0009 O 00 S90 900 000900509 vov 00009 thou 00050 b05 909 0090 03 50090 0090509095090905999 Cr009 MO VItO MC09000 709 anszmOsAL InFO . L.000501009 AOO tOhO 909 OhS 0200109 000 0000% Ottt CAtOL00 0005 900 909 Cool 0005Sf July 1989 51 Fuel guage fairing has flange used mount ing Curved ammunition trough right fabricated llthoplate-covered balsa DEIC Balsa0 Cutter5 T001~ 5 pc Masters Set 1/8 3/16 1/4 5/16 3/8 . $1698 3 pc Builders Set 3/161/4 5/16 .....$998 Whether kit builder scratch builder SQUARE CUT Tools will save time Remove stubborn die cuts cut own squares slots Made US quality machined nickel plated steel Order set today See Dealer Cataloger Order Ir dont carry Square Cut Tools call us calL well pay shipping US Canada extra SQUARE CUT Tools 407 254-0516 905 N Harbor City Blvd Melbourne FL 32935 Dsaler/ Distributo lnquiiies Invited Florida Residents Add 6% Saleg Tao NEW BY POPULAR REQUEST LARGE SCALE ENGINE CYLINDERS PRATT WHITNEY WASP 4 WRIGHT WHIRLWIND Molded high-impact styrene dummy cylinders feature deep cooling fins utmost realism Both Wasp Whirlwind types cylinders available two different large scales1/5th 21 1/4th 3 ts include assembly instructions Smaller sizes also offered Note These units may modified resemble other cylinder types Send $3 full-color catalog featuring aircraft paintings suitable framing WILLIAMS BROTHERS INC DEPT MA PAWNEE STREET SAN MARCOS CALIFORNIA 92069 NEW FAI TAN RUBBER Sizes 1/4 3/16 1/8 3/32 1/16 042 thick pound box Price *1475 includes 4 oz Slick lube *1375 no lube Slick coats *176 Postpaid US via UPS Cal add 5% tax Made USA Slow cure consistant quality Ask FAI-TAN CROCKET HOOKS NOW MADE BYFAI New catalog Ilata 100 FF kital SEND $150FAl Model Supply cATALOGCA 90510 RC Scale/SruII Continued page 51 plate pair pliers can easily melted little care must exercised Practic ing some scrap sheet will soon give hang Once softened lithoplate can formed complex compound shapes burnishing hammering small ball peen hammer lot forming being done piece can re vert its hard brittle state through process known work hardening occurs sim ply reheat piece playing butane flame presto Its ready form again Another very good aluminum material model useand favorite because its easy useis flashing gutter aluminum sheet sold hardware stores dead soft usually 010 thick comes rolls up 12 ft long various widths area about seven bucks can get 14-in-wide roll should last forever Because soft ductile material can formed complex compound surfaces rather easily ball peen plastic-headed hammers items have made amount hammering required did work harden pieces annealing neces sary compound shapes require lots form ing such circular cowls work hardening can occur does easy detect piece will suddenly become very stiff hard stops changing shape As litho plate remove piece form heat butane torch heat will required case because metal much thicker pieces usually larger basically three simple ways hammer-form aluminum sheet 1 female form 2 over male form 3 free-formed over anvil small scoops fairings carved form easy scoop Out pinewood block carved form does have smooth fin ished perfectly would case ing used vacu-forming part Bend sheet metal hand until roughly conforms final shape will minimize forming needed Next slowly hammer metal shape ball peen hammer using multiple light blows Start metal touching form work towards areas needing stretch ing An advantage female-form method can easily shape mounting flange around edge part factor often useful attaching finished part model small parts two inches sheet metal can held place hand Much larger parts may require metal clamped screwed form during forming opera tions male mold method useful forming larger cowl fairing parts metal case attached means clamps screws wooden form carved desired shape Two examples shown figures Remember go slowly using multiple hammer blows moving areas touching form toward areas raised farthest above form metal work hardens feels stiff brit tle remove form soften up butane torch way looking form cir cular cowl always good shop around va riety stores department stores hardware stores inexpensive aluminum pot close desired shape perfect size shape necessary get close whats needed can usually cut up bit either enlarged reduced size beaten desired fi nal shape inexpensive pots typically spun dead-soft aluminum sheet about 025 thick Modifying pot can awful lot easier making large cowl scratch course modelers have known build model around a nice-looking cooking pot found Finishing After hammer-forming metal part shape will necessary some cases smooth out surface irregularities file several grades emery cloth lots elbow grease As gain experience will able re duce amount hammer marks remaining finished pieces thereby reducing amount finishing work needed final polishing rubbing compound metal polish will result shiny beautiful finish course flat panels pieces have burnished shape need filing smooth ing before being polished WW Golden Age aircraft metal parts finished off machine turning means final wire brushing grinding buffing done rotating tool abrasive head intentionally left circular pat terns finished metal Skillfully done pro duced beautiful decorative surface finish tally obscured hammer marks other blem ishes would otherwise have marred its appear ance works great models too worst case beginner hammer warts can camouflaged effectively means So full-size prototype model used technique can skip filing em ery cloth hand work Simply cover up bumpy ratty-looking surface regular pattern machine turned ovals Two patterns machine turning com monly used perfectly circular shape exem plified Spirit St Louis commashaped swirl found Fokker El through EIV WW fighters case oval-shaped discs about 2 x 2 across size very small Schoolyard Scale-type models hard round eraser chucked drill electric draftsmans eraser can employed simulate marks larger RC models /6 scale find Dremel small end-wire brush used medium-low speed Dremel tool ideal little practice will able cover large panel scalelike turning pat terns no time machine turned pattern much easier apply heavier soft aluminum sheet hard lithoplate hold Dremel tool very firmly use slightly slower speed hardest sheet panels can patterned Try little sheet metal work next Scale model Youll learn like itand models will better RC Aerobatics/Van Putte Continued page 53 Lately job has caused travel several different cities Usually trips pretty bor ing Fly city check motel see contractor next day return motel fly back following day Its seldom fun However recent trip Tucson AZ different received letter David Mo150 Model Aviation
Edition: Model Aviation - 1989/07
Page Numbers: 50, 51, 150
SOONER later Scale RC builder will build model has have some real metal ex ternal parts Painted balsa vacuum-formed fi berglass pieces will just Ryan ST Hawker Hart Spirit St Louis Fokker Emdecker needs some real metal pass muster youre like other balsa cutters sheet metal can little intimidating few ideas may help get started Youll find very little practice sheet metal work will another basic RC Scale modeling tasks Starting small simple parts found alu minum much easier use feared has several big advantages too Aside looking much better au thentic balsa plastic small parts actually faster easier make aluminum Another advantage especially cowl parts aluminum about fuel-proof can get start pick some simple panels cowl pieces vents fairings etc give try aluminum lithoplate commonly used printers very lightweight thin usually 005 thick very hard aluminum sheet Since price material has risen rather sharply recent past little harder get Scrap metal places now buy used plates recycling will have large quantities few dollars lifetime supply can Some friendly print ing places may actually still give away used plates dont count Avoid newer kind plate has gray USING MALE FORM BLOCK WOOD FORM- -- 7ICLAMPALUMI BLANK TO FORMI WITH CLAMPS OR METAL STRAP OWLYPEEN -ALUM OVER FORM - IF ALUM BLANK HARDENSLt%f~ REMOVE FROM FORM & ANNEAL SruIi gives complete description using metal-forming technique column USING FEMALE FORM BLOCK PINE BLOCK FORM Another metal-forming technique also de scribed months column Don Sruli USE BALL PEEN HAMMER TO SHAPE INTO FORM enamel some kind both sides lieve stuff will nor come off printing ink im pressions usually found plates can removed lacquer thinner acetone simplest use lithoplate flat single-curvature panels have sheeted balsa case simply cut paper pattern first get exactly right shape cut lithoplate shape using scissors X-Acto knife Attach plate contact cement around outer edge use thick cyano have also used Wilhold RC-56 glue good results Before applying such panels can add ri vets making small dents reverse side lithoplate pointed tool Rows lievable rivets can easily simulated aid dressmakers marking toola device 50 Model Aviation Radio Confrol Scale Don SruII 941 Klmberwlcke Rd Mclean VA 22101 ruIIs quarter-scale WW Fokker Eindecker makes use of materials tech niques described months column scale machine turning pattern helps ob scure dents surface irregularities hand-formed sheet metaljust prototypel PRESS IN ALUM HOLD BY HAND Female form carved scrap pine block used form Elndeckers fuel guage fairing 025-in soft aluminum sheet Small Dremel wire brush used medium speed Moto-Tool produced authenticlooking machine turning patterns Eindeckers aluminum cowls panels resembles metal gear attached end handle much like pizza cutter Rolling gear end lithoplate using straightedge guide will produce quick line evenly spaced rivets other side Panels tairings have small amount double curvature compound curvature can formed gently burnishing plate held sheet soft balsa can use fin ger pressure employing small piece flannel other cloth keep friction down firm pressure will soon produce slight compound curve sheet soft balsa yields under metal sharper curves try using spoon plas tic burnishing tool found art stores very deep curves hard lithoplate will have hammered shape Before deep forming plate must softened annealing simple butane torch can used heat plate Hold Continued page iSO timer ned modeling rlss Robin 049 EngInes -Channel R/C 41 Wingspan Electric Power Optional saasa Vety few lull scale siroreg ideally suited model flight 55 appealing old Curtiss Robin born spruce linen age beautifully proportioned rubber electric glow engines Esay fun build frainerlike performence Flyline Models Catalog 505Phone 7031 3739093 INE MODELS INC PO Eon 2136 FaIrfax VIrginIa 22031 USA VINTAGE -C ILAN CONSOLIDATED PBY-5A CATALINA 9 FT WING SPAN ALL RIhS B FULL FORMERS SHOWN ON PLANS FLASVIC ENGCOWLS siOSO PR CLEAR GUN BLISTERS $ 760 PR 5 LARGE ILAN SHEETS s $895 6FT WING SPAN MODEL PBY-5A ENGINE COWLS $750 PR Plans $495 GUN BLISTERS PR ADO $ 300 POSTAGE CATALOGOVER 50 PLANS $100 DEALERS WRITE w SID MORGAN 13157 ORMOND BELLEVILLE MICH 48111 USA SAVE YOUR FIELD [ SNuF-LER muffler Isa lOw coec easy Install light weight sound reducIng muffler wIth rto performance penalty answer AMA muffler rule suggestIons saving flying fIelds Meets AMA muffler rule suggestIons 3 10 decIbels quieter siocl muffler No power lose wIth poselble 300-500 RPM Increase Improves engine Idle s better fuel economy Easgy attached 25108 stools mufflers Heat corrosIon resistant BlacK 5 COSt finish No special adapters requIred WeIghs 36 oza Fis ASF BRAT ENVA FOX HF PVINE 155 OS MAX ROYAL VS SuPSF TiORS rtuWers SNUF-LER mufflers JTEC IN-COWL mufflers ann00oruuoounnowe 40990Moo90o,o395 99909 ho eS 39 r49rn 2 us NUF-iER Muffler can 00 uSed 090r1 99 900 T009 00 4T903 e9 7910040900 scale aocran ortn IISC INCO WI 4090090 hi 9000 70999 300 90000199000 mOOS000 4r0003 FOr 0OW9 TOO rool99nnn 2e90mufflers clamp used tO Dolt tOTe~0S TlIrmuffler Ore 000cm fuselage4790201 SOOn225 S Connected tO JTSC muffler479000019 SOOntun 0reoOu00tf necorene fuoing spoearance sake can removed alter flying 09 0009 O 00 S90 900 000900509 vov 00009 thou 00050 b05 909 0090 03 50090 0090509095090905999 Cr009 MO VItO MC09000 709 anszmOsAL InFO . L.000501009 AOO tOhO 909 OhS 0200109 000 0000% Ottt CAtOL00 0005 900 909 Cool 0005Sf July 1989 51 Fuel guage fairing has flange used mount ing Curved ammunition trough right fabricated llthoplate-covered balsa DEIC Balsa0 Cutter5 T001~ 5 pc Masters Set 1/8 3/16 1/4 5/16 3/8 . $1698 3 pc Builders Set 3/161/4 5/16 .....$998 Whether kit builder scratch builder SQUARE CUT Tools will save time Remove stubborn die cuts cut own squares slots Made US quality machined nickel plated steel Order set today See Dealer Cataloger Order Ir dont carry Square Cut Tools call us calL well pay shipping US Canada extra SQUARE CUT Tools 407 254-0516 905 N Harbor City Blvd Melbourne FL 32935 Dsaler/ Distributo lnquiiies Invited Florida Residents Add 6% Saleg Tao NEW BY POPULAR REQUEST LARGE SCALE ENGINE CYLINDERS PRATT WHITNEY WASP 4 WRIGHT WHIRLWIND Molded high-impact styrene dummy cylinders feature deep cooling fins utmost realism Both Wasp Whirlwind types cylinders available two different large scales1/5th 21 1/4th 3 ts include assembly instructions Smaller sizes also offered Note These units may modified resemble other cylinder types Send $3 full-color catalog featuring aircraft paintings suitable framing WILLIAMS BROTHERS INC DEPT MA PAWNEE STREET SAN MARCOS CALIFORNIA 92069 NEW FAI TAN RUBBER Sizes 1/4 3/16 1/8 3/32 1/16 042 thick pound box Price *1475 includes 4 oz Slick lube *1375 no lube Slick coats *176 Postpaid US via UPS Cal add 5% tax Made USA Slow cure consistant quality Ask FAI-TAN CROCKET HOOKS NOW MADE BYFAI New catalog Ilata 100 FF kital SEND $150FAl Model Supply cATALOGCA 90510 RC Scale/SruII Continued page 51 plate pair pliers can easily melted little care must exercised Practic ing some scrap sheet will soon give hang Once softened lithoplate can formed complex compound shapes burnishing hammering small ball peen hammer lot forming being done piece can re vert its hard brittle state through process known work hardening occurs sim ply reheat piece playing butane flame presto Its ready form again Another very good aluminum material model useand favorite because its easy useis flashing gutter aluminum sheet sold hardware stores dead soft usually 010 thick comes rolls up 12 ft long various widths area about seven bucks can get 14-in-wide roll should last forever Because soft ductile material can formed complex compound surfaces rather easily ball peen plastic-headed hammers items have made amount hammering required did work harden pieces annealing neces sary compound shapes require lots form ing such circular cowls work hardening can occur does easy detect piece will suddenly become very stiff hard stops changing shape As litho plate remove piece form heat butane torch heat will required case because metal much thicker pieces usually larger basically three simple ways hammer-form aluminum sheet 1 female form 2 over male form 3 free-formed over anvil small scoops fairings carved form easy scoop Out pinewood block carved form does have smooth fin ished perfectly would case ing used vacu-forming part Bend sheet metal hand until roughly conforms final shape will minimize forming needed Next slowly hammer metal shape ball peen hammer using multiple light blows Start metal touching form work towards areas needing stretch ing An advantage female-form method can easily shape mounting flange around edge part factor often useful attaching finished part model small parts two inches sheet metal can held place hand Much larger parts may require metal clamped screwed form during forming opera tions male mold method useful forming larger cowl fairing parts metal case attached means clamps screws wooden form carved desired shape Two examples shown figures Remember go slowly using multiple hammer blows moving areas touching form toward areas raised farthest above form metal work hardens feels stiff brit tle remove form soften up butane torch way looking form cir cular cowl always good shop around va riety stores department stores hardware stores inexpensive aluminum pot close desired shape perfect size shape necessary get close whats needed can usually cut up bit either enlarged reduced size beaten desired fi nal shape inexpensive pots typically spun dead-soft aluminum sheet about 025 thick Modifying pot can awful lot easier making large cowl scratch course modelers have known build model around a nice-looking cooking pot found Finishing After hammer-forming metal part shape will necessary some cases smooth out surface irregularities file several grades emery cloth lots elbow grease As gain experience will able re duce amount hammer marks remaining finished pieces thereby reducing amount finishing work needed final polishing rubbing compound metal polish will result shiny beautiful finish course flat panels pieces have burnished shape need filing smooth ing before being polished WW Golden Age aircraft metal parts finished off machine turning means final wire brushing grinding buffing done rotating tool abrasive head intentionally left circular pat terns finished metal Skillfully done pro duced beautiful decorative surface finish tally obscured hammer marks other blem ishes would otherwise have marred its appear ance works great models too worst case beginner hammer warts can camouflaged effectively means So full-size prototype model used technique can skip filing em ery cloth hand work Simply cover up bumpy ratty-looking surface regular pattern machine turned ovals Two patterns machine turning com monly used perfectly circular shape exem plified Spirit St Louis commashaped swirl found Fokker El through EIV WW fighters case oval-shaped discs about 2 x 2 across size very small Schoolyard Scale-type models hard round eraser chucked drill electric draftsmans eraser can employed simulate marks larger RC models /6 scale find Dremel small end-wire brush used medium-low speed Dremel tool ideal little practice will able cover large panel scalelike turning pat terns no time machine turned pattern much easier apply heavier soft aluminum sheet hard lithoplate hold Dremel tool very firmly use slightly slower speed hardest sheet panels can patterned Try little sheet metal work next Scale model Youll learn like itand models will better RC Aerobatics/Van Putte Continued page 53 Lately job has caused travel several different cities Usually trips pretty bor ing Fly city check motel see contractor next day return motel fly back following day Its seldom fun However recent trip Tucson AZ different received letter David Mo150 Model Aviation
Edition: Model Aviation - 1989/07
Page Numbers: 50, 51, 150
SOONER later Scale RC builder will build model has have some real metal ex ternal parts Painted balsa vacuum-formed fi berglass pieces will just Ryan ST Hawker Hart Spirit St Louis Fokker Emdecker needs some real metal pass muster youre like other balsa cutters sheet metal can little intimidating few ideas may help get started Youll find very little practice sheet metal work will another basic RC Scale modeling tasks Starting small simple parts found alu minum much easier use feared has several big advantages too Aside looking much better au thentic balsa plastic small parts actually faster easier make aluminum Another advantage especially cowl parts aluminum about fuel-proof can get start pick some simple panels cowl pieces vents fairings etc give try aluminum lithoplate commonly used printers very lightweight thin usually 005 thick very hard aluminum sheet Since price material has risen rather sharply recent past little harder get Scrap metal places now buy used plates recycling will have large quantities few dollars lifetime supply can Some friendly print ing places may actually still give away used plates dont count Avoid newer kind plate has gray USING MALE FORM BLOCK WOOD FORM- -- 7ICLAMPALUMI BLANK TO FORMI WITH CLAMPS OR METAL STRAP OWLYPEEN -ALUM OVER FORM - IF ALUM BLANK HARDENSLt%f~ REMOVE FROM FORM & ANNEAL SruIi gives complete description using metal-forming technique column USING FEMALE FORM BLOCK PINE BLOCK FORM Another metal-forming technique also de scribed months column Don Sruli USE BALL PEEN HAMMER TO SHAPE INTO FORM enamel some kind both sides lieve stuff will nor come off printing ink im pressions usually found plates can removed lacquer thinner acetone simplest use lithoplate flat single-curvature panels have sheeted balsa case simply cut paper pattern first get exactly right shape cut lithoplate shape using scissors X-Acto knife Attach plate contact cement around outer edge use thick cyano have also used Wilhold RC-56 glue good results Before applying such panels can add ri vets making small dents reverse side lithoplate pointed tool Rows lievable rivets can easily simulated aid dressmakers marking toola device 50 Model Aviation Radio Confrol Scale Don SruII 941 Klmberwlcke Rd Mclean VA 22101 ruIIs quarter-scale WW Fokker Eindecker makes use of materials tech niques described months column scale machine turning pattern helps ob scure dents surface irregularities hand-formed sheet metaljust prototypel PRESS IN ALUM HOLD BY HAND Female form carved scrap pine block used form Elndeckers fuel guage fairing 025-in soft aluminum sheet Small Dremel wire brush used medium speed Moto-Tool produced authenticlooking machine turning patterns Eindeckers aluminum cowls panels resembles metal gear attached end handle much like pizza cutter Rolling gear end lithoplate using straightedge guide will produce quick line evenly spaced rivets other side Panels tairings have small amount double curvature compound curvature can formed gently burnishing plate held sheet soft balsa can use fin ger pressure employing small piece flannel other cloth keep friction down firm pressure will soon produce slight compound curve sheet soft balsa yields under metal sharper curves try using spoon plas tic burnishing tool found art stores very deep curves hard lithoplate will have hammered shape Before deep forming plate must softened annealing simple butane torch can used heat plate Hold Continued page iSO timer ned modeling rlss Robin 049 EngInes -Channel R/C 41 Wingspan Electric Power Optional saasa Vety few lull scale siroreg ideally suited model flight 55 appealing old Curtiss Robin born spruce linen age beautifully proportioned rubber electric glow engines Esay fun build frainerlike performence Flyline Models Catalog 505Phone 7031 3739093 INE MODELS INC PO Eon 2136 FaIrfax VIrginIa 22031 USA VINTAGE -C ILAN CONSOLIDATED PBY-5A CATALINA 9 FT WING SPAN ALL RIhS B FULL FORMERS SHOWN ON PLANS FLASVIC ENGCOWLS siOSO PR CLEAR GUN BLISTERS $ 760 PR 5 LARGE ILAN SHEETS s $895 6FT WING SPAN MODEL PBY-5A ENGINE COWLS $750 PR Plans $495 GUN BLISTERS PR ADO $ 300 POSTAGE CATALOGOVER 50 PLANS $100 DEALERS WRITE w SID MORGAN 13157 ORMOND BELLEVILLE MICH 48111 USA SAVE YOUR FIELD [ SNuF-LER muffler Isa lOw coec easy Install light weight sound reducIng muffler wIth rto performance penalty answer AMA muffler rule suggestIons saving flying fIelds Meets AMA muffler rule suggestIons 3 10 decIbels quieter siocl muffler No power lose wIth poselble 300-500 RPM Increase Improves engine Idle s better fuel economy Easgy attached 25108 stools mufflers Heat corrosIon resistant BlacK 5 COSt finish No special adapters requIred WeIghs 36 oza Fis ASF BRAT ENVA FOX HF PVINE 155 OS MAX ROYAL VS SuPSF TiORS rtuWers SNUF-LER mufflers JTEC IN-COWL mufflers ann00oruuoounnowe 40990Moo90o,o395 99909 ho eS 39 r49rn 2 us NUF-iER Muffler can 00 uSed 090r1 99 900 T009 00 4T903 e9 7910040900 scale aocran ortn IISC INCO WI 4090090 hi 9000 70999 300 90000199000 mOOS000 4r0003 FOr 0OW9 TOO rool99nnn 2e90mufflers clamp used tO Dolt tOTe~0S TlIrmuffler Ore 000cm fuselage4790201 SOOn225 S Connected tO JTSC muffler479000019 SOOntun 0reoOu00tf necorene fuoing spoearance sake can removed alter flying 09 0009 O 00 S90 900 000900509 vov 00009 thou 00050 b05 909 0090 03 50090 0090509095090905999 Cr009 MO VItO MC09000 709 anszmOsAL InFO . L.000501009 AOO tOhO 909 OhS 0200109 000 0000% Ottt CAtOL00 0005 900 909 Cool 0005Sf July 1989 51 Fuel guage fairing has flange used mount ing Curved ammunition trough right fabricated llthoplate-covered balsa DEIC Balsa0 Cutter5 T001~ 5 pc Masters Set 1/8 3/16 1/4 5/16 3/8 . $1698 3 pc Builders Set 3/161/4 5/16 .....$998 Whether kit builder scratch builder SQUARE CUT Tools will save time Remove stubborn die cuts cut own squares slots Made US quality machined nickel plated steel Order set today See Dealer Cataloger Order Ir dont carry Square Cut Tools call us calL well pay shipping US Canada extra SQUARE CUT Tools 407 254-0516 905 N Harbor City Blvd Melbourne FL 32935 Dsaler/ Distributo lnquiiies Invited Florida Residents Add 6% Saleg Tao NEW BY POPULAR REQUEST LARGE SCALE ENGINE CYLINDERS PRATT WHITNEY WASP 4 WRIGHT WHIRLWIND Molded high-impact styrene dummy cylinders feature deep cooling fins utmost realism Both Wasp Whirlwind types cylinders available two different large scales1/5th 21 1/4th 3 ts include assembly instructions Smaller sizes also offered Note These units may modified resemble other cylinder types Send $3 full-color catalog featuring aircraft paintings suitable framing WILLIAMS BROTHERS INC DEPT MA PAWNEE STREET SAN MARCOS CALIFORNIA 92069 NEW FAI TAN RUBBER Sizes 1/4 3/16 1/8 3/32 1/16 042 thick pound box Price *1475 includes 4 oz Slick lube *1375 no lube Slick coats *176 Postpaid US via UPS Cal add 5% tax Made USA Slow cure consistant quality Ask FAI-TAN CROCKET HOOKS NOW MADE BYFAI New catalog Ilata 100 FF kital SEND $150FAl Model Supply cATALOGCA 90510 RC Scale/SruII Continued page 51 plate pair pliers can easily melted little care must exercised Practic ing some scrap sheet will soon give hang Once softened lithoplate can formed complex compound shapes burnishing hammering small ball peen hammer lot forming being done piece can re vert its hard brittle state through process known work hardening occurs sim ply reheat piece playing butane flame presto Its ready form again Another very good aluminum material model useand favorite because its easy useis flashing gutter aluminum sheet sold hardware stores dead soft usually 010 thick comes rolls up 12 ft long various widths area about seven bucks can get 14-in-wide roll should last forever Because soft ductile material can formed complex compound surfaces rather easily ball peen plastic-headed hammers items have made amount hammering required did work harden pieces annealing neces sary compound shapes require lots form ing such circular cowls work hardening can occur does easy detect piece will suddenly become very stiff hard stops changing shape As litho plate remove piece form heat butane torch heat will required case because metal much thicker pieces usually larger basically three simple ways hammer-form aluminum sheet 1 female form 2 over male form 3 free-formed over anvil small scoops fairings carved form easy scoop Out pinewood block carved form does have smooth fin ished perfectly would case ing used vacu-forming part Bend sheet metal hand until roughly conforms final shape will minimize forming needed Next slowly hammer metal shape ball peen hammer using multiple light blows Start metal touching form work towards areas needing stretch ing An advantage female-form method can easily shape mounting flange around edge part factor often useful attaching finished part model small parts two inches sheet metal can held place hand Much larger parts may require metal clamped screwed form during forming opera tions male mold method useful forming larger cowl fairing parts metal case attached means clamps screws wooden form carved desired shape Two examples shown figures Remember go slowly using multiple hammer blows moving areas touching form toward areas raised farthest above form metal work hardens feels stiff brit tle remove form soften up butane torch way looking form cir cular cowl always good shop around va riety stores department stores hardware stores inexpensive aluminum pot close desired shape perfect size shape necessary get close whats needed can usually cut up bit either enlarged reduced size beaten desired fi nal shape inexpensive pots typically spun dead-soft aluminum sheet about 025 thick Modifying pot can awful lot easier making large cowl scratch course modelers have known build model around a nice-looking cooking pot found Finishing After hammer-forming metal part shape will necessary some cases smooth out surface irregularities file several grades emery cloth lots elbow grease As gain experience will able re duce amount hammer marks remaining finished pieces thereby reducing amount finishing work needed final polishing rubbing compound metal polish will result shiny beautiful finish course flat panels pieces have burnished shape need filing smooth ing before being polished WW Golden Age aircraft metal parts finished off machine turning means final wire brushing grinding buffing done rotating tool abrasive head intentionally left circular pat terns finished metal Skillfully done pro duced beautiful decorative surface finish tally obscured hammer marks other blem ishes would otherwise have marred its appear ance works great models too worst case beginner hammer warts can camouflaged effectively means So full-size prototype model used technique can skip filing em ery cloth hand work Simply cover up bumpy ratty-looking surface regular pattern machine turned ovals Two patterns machine turning com monly used perfectly circular shape exem plified Spirit St Louis commashaped swirl found Fokker El through EIV WW fighters case oval-shaped discs about 2 x 2 across size very small Schoolyard Scale-type models hard round eraser chucked drill electric draftsmans eraser can employed simulate marks larger RC models /6 scale find Dremel small end-wire brush used medium-low speed Dremel tool ideal little practice will able cover large panel scalelike turning pat terns no time machine turned pattern much easier apply heavier soft aluminum sheet hard lithoplate hold Dremel tool very firmly use slightly slower speed hardest sheet panels can patterned Try little sheet metal work next Scale model Youll learn like itand models will better RC Aerobatics/Van Putte Continued page 53 Lately job has caused travel several different cities Usually trips pretty bor ing Fly city check motel see contractor next day return motel fly back following day Its seldom fun However recent trip Tucson AZ different received letter David Mo150 Model Aviation