Radio Control SCALE Bob & Dolly Wlscher METALWORKING Anyone having complete metalworking shop may find following de scriptions boring However us min imum equipment always looking methods producing quality models great ex pense Never having built complete model aluminum raw material arent qualified describe type work however seeing increase number metal com ponents quality Scale models degree Simplified metalworking tools can handmade ordinary materials will enable average modeler produce professional-quality metal pans louver-forming press alignment punch die key success realism possible metal cant ig nored have efforts past 10 years construct complete model aircraft using aluminum Staggerwing Chicago Expo Jon Hauser used Wylam drawings construct 69-in wingspan modelsorry didnt get weight engine basic fuselage structure duplicates real plane steel tubing plywood formers spruce stringers R above retractable gear handcrafted has scale chain driveand look detailing wheel well including placards L below models open door operating latch handle lets us see leather-covered upholstery door-compartments hinged flap R below adjustable Hamilton Standard propeller detailed Pratt & Whitney dummy engine pushrods spark plugs ignition cables features Hausers G175 Beechcraft John made extensive use formed metal pafls magicalIyshrunken real airplane 50 Model Aviation TO BE PUNCHEDSHARP CORNER SECTION A-A A PAPER SHIMS DOWELFOR ADJUSTMENT STEEL LOUVER PUNCH STEEL PLATECUTOUTTO FIT LOUVERPUNCH SHARP CORNER ON PUNCH SPACE BETWEEN EDGE VIEWLOUVERS IN ROW OF PUNCH sheet exact duplication full-size pro totype including internal structure have semi-successful flying models weight radio problems probable nega tive factors Jerry Fingler produced completely metal-covered balsa Shinn 2150A spec tacular beauty Radio noise due chafing alu minum sheets suspected reason its control difficulties changing radios using whip antenna some success attained raw material commonly used applications aluminum litho sheet 005-in 010-in thickness exterior applications supplier local newspaper time gave us sheets no charge used once print page recently have heen asked pay about 25g sheets scrap value aluminum quite hard would difficult form compound curves unless annealed heating quenching best use material tiat pieces simple forms recent models have parts made sheets Litho plate comes us liberal coating printers ink needs removed sol vent have used cleaning fluid gasoline alco hol dope thinner acetone equal success surface etched printed matter photos becomes reverse side part being formed exterior smooth Forming louvers average modeler doesnt have unlimited facilities metal work would like punch row louvers litho sheet will probably surprised find necessary materials close hand have used hardwood die holders metal em ployed actual point cutting maintain alignment between punch die two pieces hardwood X 10 average work hinged end 3-in dimension would make louvers /2 2-in long longer louvers increase board width suit 10-in length may vary depending length aluminum sheet punched hinge ordinary cabinet butt-type 2 3-in long Continued page 148 Gator RIC Products 3713 Pompano Dr Pensacola FL 32514 Phone AC 904 476-8639 ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone espanding brass ring grips sleeve bearing 10 new 60s 17MM rear bearing *SPECIAL* Both $1395 NewNew WING TUBE & SOCKETS 1 V dia aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wingstruct 2024 alum tube 24 long socket 12 long 58951 set TIGER TAIL 4 Ron Chidgeys latest best series little larger lighter slower retains honest flight characteristics ifs predecessors Especially recommended sportsman advanced pattern also good choice turn around pattern Plans construction hints- $995 ENDANNER USA MODELING PRODUCTE INC DEPTA U Po Box sie STOWN PA 19464 37-1231 ELECTRIC RETRACTS GIEZENDANNER Two Time World Champion REGULAR RETRACTS 5/32 Pattern- Up 10 lbs HEAVY DUTY RETRACTS 3/16 ForScale-lOto 18 lbs EXTRA HEAVY DUTY RETRACTS 1/4 Big Ones 18 50 lbs retract Slip Clutch prevent jamming stripping gears Left GMP-2001-R Regular Right GMP-2001 -D Deluxe Dealers Invited ELECTRONIC DIGITAL TACHOMETERS GMP-2001-D Visible display ble low battery display 2 & 3 Bladed props W liquid display Crystal controlled GMP-2001 -R Visible display Visible low battery display 2 Bladed W liquid display Crystal controlled Catalog Available Ideal beginner well master flier CHARGE IT Yes have Giezendanner Wipers 3 Bladed Low-Noise Glass Filled Props May 1983 51 Richard Guinlan displayed exquisite Douglas DC-3 Chicago Expo began Royal kit spans 83 has two K&B 408 real metal skin Its aluminum refrigerator insulation Take careful note scale props antennas landing gear details door hinges Interior has curtains seats model required two years building time GP nhuJu rn II dEi - I 1981 -82 World RIG Aerobatic C dpi Winner 7 Consecutive Las Vegas Tournament Champions Shown above Giezendanner GMP 2001 -D Digital Tachometer See Dealer Order Direct Include 75 Per Item UPS THE new POWRTOW WINCH ZIP & LONGER BATTERY LIFE Power size sailplane current draw -kiting & manual drum brakes adjustable speed parachute turn-a round foot switch 115 lb braided line use iith RETRIEVER launch-a-minute flightsan end line shagging delays line crossings drag free operation tangles heavy-duty cables Clips braided 301blinetow ribbonhand switch line guides ball bearing swivels DAVEY SYSTEMS CORPORATION ONE ROOD LANEMALVEEN PA 19355 215644-0692 Write call information Cam-Axial/Paul Continued page 48 Although first engines have conceived model airplane propulsion units mind little imagination can lead visualize other uses Since dont see need new technologies material processes should production pos sibilities utilizing latest materials methods Using current state art equiv alent present-day engine manufacturing would expect some Cam-Axial engine possible advantages might include horsepower per unit weight horse power per displacement smoother oper ation multi-cylinder configurations possible conventional engines because reduction side forces piston caused crank angle connecting rod twice power pulses natural lubri cation cam track followers pis ton shaft less dead volume between piston housing giving better pumping action cam track configuration does have harmonic can programconfigured apply power shaft rotation relative rest cycle Another possibly advantageous difference relative torque illustrated sketches RC Scale/Wischers Continued page 51 cutting punch filed piece steel dimensions equal desired lou ver Quality steel isnt critical punch after being filed shape will took exactly like individual louver Securely solder punch center metal plate roughly dimensioned 1/16 x 3-in dimension equals board width punch plate assembly epoxied boards cutting edge toward hinge about end 9 hinge After epoxy hardens drill pair holes through plate wood fit steel dowels closely dowels pressed flush plate surface An ideal dowel mate rial 3/32-in mustc wire hinged hoards brought together louver punch rests against lower board light hammer blow top board will leave imprint wood mark location cutting edge die steel 148 Model Aviation block about square 2 3-in long block set eroose cut across board block lush board surface Use file make cenain blocks cutting edge shatp square After cutting groove block carve out bit wood form relief punch two boards should now come together separated metal plate carved relief should quite close punch shape slightly larger compensate thickness metal material being punched steel block pressed groove Epoxy place necessary two hinged boards brought together punch should just clear die block gap between cutting edges too great aluminum sheet will tear rather cut Use paper shims beneath hinge leaves obtain clean cut homemade louver cutter has made hundreds louvers shows no sign wear arrangement described will make single louver row louvers material must removed lower board avoid flat tening previous form placing edge cutaway portion exact location relative die block louver spacing row auto matically maintained Set last formed louver against cutaway edge Use pencil lines etched side aluminum s guide straight rows first thought hammer blow necessary cut form louver 010 litho aluminum later found just squeezing hand pressure will cut through metal much less risk misalignment Louv ers punched rate 170 hour neat rows exactly spaced Dont get carried away did punch too sheet containing about 50 Forming corrugations Metal corrugated ailer ons used Waco Aeronca C-2 airplanes example can formed thin sheet alu mtnum using same primitive tooling foregoing text purpose 005-in sheet thickness preferred punch triangularshaped strip steel soldered across plate upper board pushes aluminum matching groove lower board lower board very hard made birch maple example groove can cut directly wood softer woods die steel will needed groove filed metal turn epoxied place using punch guide exact location important cutting groove retain sharp corners groove meets flat surface cor rugation requires three sharp corners realism punch height must match slightly continued page 152 RETRIEVER $300Qi plus shipping VLMT Ut IMILtU tMLt ULbIUN TL LMbT MbrMDLT SPECTACuLAR PLYING QUALITIES FULLY ACROBATIC 641N WINGSPAN 75 LBS USING 45 ENGINES AND up opS NEW BLA BARON EPOXY P~MER Spray raw balsa fabric Sands quickly & smoothly spray favorite color Black Baron Epoxy paint fuelproof fool proof system Look label worlds first rear utew Black Baron ~vIi-i CPEPJTES BLACK o11 DDD 420 BABYLON RD HORSHAM PA 19044 USA APPliED DESIGN CORPORATION 738 Penn St El Segundo CA N245 MINI-STRIPS PRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFine Garnet AND EFFORT $135 SANDING BELTS Water Preel TEE 7ALUMINUM EXTRUSION -~- DING BLOCK hr RUFF-STUFF Suit-adhesive saed paper LargeTnan Surface Went Wear Out 11 Inch -5225 HaedyteUne 22 Inch -$335 RUFF 6~& STUFF SELF ADHESIVE SHEET SANOMPER 6MAKE YOUR OWN SPECIAL SANDING SHAPES Ne macny ghae er dryine Medium Fine r Fine $ 75 MINIASAW $610 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE am han rugged die-cast treew emlertahin chIp-punt plank In4 h.tdin Receding anna ad B hated gives access Cuts weed piuntic metal HARDENED MUSIC WIRE Xtr bludos-3/S1 75 less depth groove die three comered file will produce 1200 groove slightly greater depth comes close shape needed Paper shims under hinge leaves will aid alignment Cutting forming first things dis covered about cutting thin sheet aluminum inadequacy ordinary tin snips tool has nasty habit stretching metal curved helix shapes quite useless purpose decided must way cut sheet hand tools would avoid curl solu tion simple Use straight edge sharp blade such ubiquitous X-Acto knife score sheet deeply crack sheet along score line Lay scored line over edge board push down uniformly another wood strip doesnt break after first bend flip sheet bend opposite direction light touch-up file along broken edge finishes cut Straight smooth cuts also possible ordinary paper cutter type long lever cutting blade will cut aluminum sheet up 010-in thick work-piece always laid paper-cutter board since scrap end unsupported will acquire curl due metal stretching leftover piece stretched edge isnt lost Remove stressed metal usually about A-in wide remainder will again flat paper cutter indispensable tool has used make metal fuel tanks 005-in brass canopy tracks frames aluminum cockpit details inspection panels Forming angles Z bends channels done clamping sheet between two hard wood blocks vise protruding metal pried over form angle using third block distribute bending force uniformly along full length metal Sharpness bend de pends upon radius inside block Very complex shapes can made two pieces joined afterward CyA cement Rivet detail can embossed litho plate impressions reverse side using blunt rounded tool proper diameter tool could spike its point filed hemispherical shape part laid face down lead hardwood block tool tapped light hammer Experiment scrap aluminum de termine what hammer force needed get correct-size impression Keeping hammer blows equal rivet minor difficulty large numbers rivet impressions made may worth additional effort fasten forming tool end pivoted lever using falling weight keep hammer force uniform Greater uniformity can also real ized using dimpled steel block place lead head pocket ideas borrowed scratch-builder model railroaders often have thousands rivets form loco motive Metalworking worthwhile skills acquire Scale modeling addition satisfaction accomplishment minimum tools metal parts often ready used out paint primer should used assure adhesion parts painted New FAI rules Under changed static scoring system proof scale much simplified threeview drawing between 1/24 1/72 scale minimum wingspan 150mm 591 required older prototypes selection photos can substitute three-view Proof color markings necessary authentic source such Profile least three photos must provided including actual subject being modeled contestant must certify builder model must supply declara tion listing comopnents didnt make Proof prototype cruising speed must furnished scale ruler no longer required no limit maximum number photos number pages presentation simplified judges guide now explains placing model checking against three-view photos Spe cific items checking judges listed Photos take precedence over three-views conflict Flight judging com plexity bonus remain unchanged static judging change emphasis details Under old FAI rules cockpit scored 0 10 although its K-factor 4 As result top-quality cockpit awarded less half score excellent fuselage wing Under new rules cockpit considered part models scale detail cant examined closely Judging dis tance Im 39 whole airplane model will moved can viewed side front rear top bottom single item will affect static score 39-in distance craftsmanship has K-factor 10 same scale ac curacy respect FAI differs AMA Sport Scale rules good craftmanship goes unnoticed 15 ft Nats planning committee has decided use new FAI rules Precision Scale event 1983 Nats new static judging schedule published last months column April 1983 along changes displacement allowed four-stroke engines Other necessary infor mation contestants included above discussion Proof Scale Referring AMA rule book delete everything under section 19 Proof Scale pages 123 124 delete everything under Annex section 110 152 Model Aviation Padded flats end curves Easytauns$210 Add 20% postage Send 25C catalog FOR 35 TO 60 MOTORS See What Get SPAN 60 Completely Prefabricated High Quality Fuselage Top Deck Obechi Veneer-Covered Foam Wings Preshaped Tail Rudder Unit ABS Cowl Clear Canopy Hardware An Easy-To-Handle 1/6 Scale Model CALIFORNIA 129ADD 6% TAX Includes Send Check Carriage Cashiers Check i~i Money Order ONLY 359 TROUSDALE DRIVE SUITE POWERMAX CHULA VISTA CALIFORNIA 92010 Telephone 619 691-0780 AT LEADING HOBBY STORESSAE FOR PRICE LIST Judging Fidelity Scale Craftsman ship else remains same including com plexity bonus flight scoring except multimotors can no longer nominated Ilight option Multi-motors remain eligible com plexity bonus means now have three kinds Stand-off Scale Nats Sport Scale Giant Scale FAI Scale Bob Do//v Wiseher S-221 Lapham Peak Rd Dc/afield WI 530/8 RC Aerobatics/Van Putte Continued page 53 over MonoKote tip works well applying MonoKote over MonoKote what after having cleaned base coat MonoKote Glass Plus flood area trimmed Glass Plus Windex works too Lay pre-cut piece trim position over pool liquid glass cleaner Now work liquid Out under trim piece fingers liquid will force air out Use fingers squeegee Now use heat gun activate adhesive trim material bond base layer MonoKate Presto have clean bubble-free trim job Hey thats great Thanks Bill Now problem klutzes rapidly running out ex cuses producing poor MonoKote jobs Several people have written say sug gestions perform some Novice Sportsman-class maneuvers have helpful Some suggested what next maneuver covered ought consensus seems lot fliers out still cant land airplane properly Since landing air plane important whether youre flying Pattern contest Ill give few hints month training quite few beginners over years Ive discovered biggest problem leaming land airplane fliers dont really know what purpose elevator watch uninformed flier trying land airplane youll probably see lot climbing diving going because hes pumping elevator Thats what elevator elevator supposed control aircraft pitch attitude other hand throttle should used control aircraft altitude Sometimes action two controls seems mixed up example elevator attitude control have use perform loop easiest explanation can think while-the elevator control provides airplanes pitch atti tude excess power over what required level flight brings airplane around loop elevator position power setting will result steady horizontal flight airplane elevator held fixed position throttle creased airplane will climb Similarly throttle reduced airplane will descend What does have landing Well trick landing keep airplane steady descent holding elevator control fixed position sink rate airplane controlled throttle remember throttle controls altitude However beginners have difficult time setting up proper landing because land ing approach too short downwind leg traffic pattem should exaggerated airplane turned onto final leg nice long descent landing Once final tum has completed throttle should reduced near-idle setting ele vator control should slowly fed until airplane horizontal slightly noseup atti tude Usually means slight constant back stick held during descent Resist temp tation change elevator control position Continued page 156 LUNU GE GREECIAL PLAN $27 OOpp PLAN$27 OOpp F G Cowl $27 OOpp F C Cowl $27 OOpp F C Pants$25 OOpp ECONO PAC$49Upp ECDNO-PAC... $70OOpp SAVt.$0 00 SAVE $900 Farman Moustique plan$17OOpp MODEL SUPPLIES Ply-Span tissue various colors Fiberglass tailbooms HL gliders towline gliders RIO gliders free flight Adhesives carbon fiber pre-formed landing skids KW prop brakes paci fier bulbs Drew circle-tow units thinwall surgical tubing Tatone engine mounts plastic-head pins other items catalog send self-addressed large envelope NFFS/MA-1 1602 Encanto Place Walnut Creek CA 94596 May 1983 153 ROGA/HANNO PRETTNER DALOTEL 150 THE QUICKIE BUILD OF ALL TIME MANY OTHER SCALE KITS AVAILABLE 1/6 SCALE MOSQUITO 95 Span $465 Glass Fire Fuselage Veneered Wings 1/4 SCALE SPITFIRE MKII 102 Span . $295 AVAILABLE FROM Balsa Construction 1/4 SCALE DALOTEL 230 90 Span$299 Glass Fibre Fuselage ered Wings 1/5 SCALE JODEL ROBIN 90 Span$399 Correction February 1983 column photo Travel Air 4000 built Roger Paul photo caption incorrectly stated model built Rich ard Barron plans really built Jerry Behrens plans See Jerrys ads MA REALISM GEE BEE RACER FINE QUALITY PLASTIC DISPLAY MODELS- PILOTS WHEELS CYLINDERS- ENGINE KITS MACHINE GUN KITS SEND $1 FOR ALLAJ3 COMPLETE CATALOG DEPT MA 181 PAWNEE ST SAN MARCOS Ca 92069
Edition: Model Aviation - 1983/05
Page Numbers: 50, 51, 148, 152, 153
Radio Control SCALE Bob & Dolly Wlscher METALWORKING Anyone having complete metalworking shop may find following de scriptions boring However us min imum equipment always looking methods producing quality models great ex pense Never having built complete model aluminum raw material arent qualified describe type work however seeing increase number metal com ponents quality Scale models degree Simplified metalworking tools can handmade ordinary materials will enable average modeler produce professional-quality metal pans louver-forming press alignment punch die key success realism possible metal cant ig nored have efforts past 10 years construct complete model aircraft using aluminum Staggerwing Chicago Expo Jon Hauser used Wylam drawings construct 69-in wingspan modelsorry didnt get weight engine basic fuselage structure duplicates real plane steel tubing plywood formers spruce stringers R above retractable gear handcrafted has scale chain driveand look detailing wheel well including placards L below models open door operating latch handle lets us see leather-covered upholstery door-compartments hinged flap R below adjustable Hamilton Standard propeller detailed Pratt & Whitney dummy engine pushrods spark plugs ignition cables features Hausers G175 Beechcraft John made extensive use formed metal pafls magicalIyshrunken real airplane 50 Model Aviation TO BE PUNCHEDSHARP CORNER SECTION A-A A PAPER SHIMS DOWELFOR ADJUSTMENT STEEL LOUVER PUNCH STEEL PLATECUTOUTTO FIT LOUVERPUNCH SHARP CORNER ON PUNCH SPACE BETWEEN EDGE VIEWLOUVERS IN ROW OF PUNCH sheet exact duplication full-size pro totype including internal structure have semi-successful flying models weight radio problems probable nega tive factors Jerry Fingler produced completely metal-covered balsa Shinn 2150A spec tacular beauty Radio noise due chafing alu minum sheets suspected reason its control difficulties changing radios using whip antenna some success attained raw material commonly used applications aluminum litho sheet 005-in 010-in thickness exterior applications supplier local newspaper time gave us sheets no charge used once print page recently have heen asked pay about 25g sheets scrap value aluminum quite hard would difficult form compound curves unless annealed heating quenching best use material tiat pieces simple forms recent models have parts made sheets Litho plate comes us liberal coating printers ink needs removed sol vent have used cleaning fluid gasoline alco hol dope thinner acetone equal success surface etched printed matter photos becomes reverse side part being formed exterior smooth Forming louvers average modeler doesnt have unlimited facilities metal work would like punch row louvers litho sheet will probably surprised find necessary materials close hand have used hardwood die holders metal em ployed actual point cutting maintain alignment between punch die two pieces hardwood X 10 average work hinged end 3-in dimension would make louvers /2 2-in long longer louvers increase board width suit 10-in length may vary depending length aluminum sheet punched hinge ordinary cabinet butt-type 2 3-in long Continued page 148 Gator RIC Products 3713 Pompano Dr Pensacola FL 32514 Phone AC 904 476-8639 ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone espanding brass ring grips sleeve bearing 10 new 60s 17MM rear bearing *SPECIAL* Both $1395 NewNew WING TUBE & SOCKETS 1 V dia aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wingstruct 2024 alum tube 24 long socket 12 long 58951 set TIGER TAIL 4 Ron Chidgeys latest best series little larger lighter slower retains honest flight characteristics ifs predecessors Especially recommended sportsman advanced pattern also good choice turn around pattern Plans construction hints- $995 ENDANNER USA MODELING PRODUCTE INC DEPTA U Po Box sie STOWN PA 19464 37-1231 ELECTRIC RETRACTS GIEZENDANNER Two Time World Champion REGULAR RETRACTS 5/32 Pattern- Up 10 lbs HEAVY DUTY RETRACTS 3/16 ForScale-lOto 18 lbs EXTRA HEAVY DUTY RETRACTS 1/4 Big Ones 18 50 lbs retract Slip Clutch prevent jamming stripping gears Left GMP-2001-R Regular Right GMP-2001 -D Deluxe Dealers Invited ELECTRONIC DIGITAL TACHOMETERS GMP-2001-D Visible display ble low battery display 2 & 3 Bladed props W liquid display Crystal controlled GMP-2001 -R Visible display Visible low battery display 2 Bladed W liquid display Crystal controlled Catalog Available Ideal beginner well master flier CHARGE IT Yes have Giezendanner Wipers 3 Bladed Low-Noise Glass Filled Props May 1983 51 Richard Guinlan displayed exquisite Douglas DC-3 Chicago Expo began Royal kit spans 83 has two K&B 408 real metal skin Its aluminum refrigerator insulation Take careful note scale props antennas landing gear details door hinges Interior has curtains seats model required two years building time GP nhuJu rn II dEi - I 1981 -82 World RIG Aerobatic C dpi Winner 7 Consecutive Las Vegas Tournament Champions Shown above Giezendanner GMP 2001 -D Digital Tachometer See Dealer Order Direct Include 75 Per Item UPS THE new POWRTOW WINCH ZIP & LONGER BATTERY LIFE Power size sailplane current draw -kiting & manual drum brakes adjustable speed parachute turn-a round foot switch 115 lb braided line use iith RETRIEVER launch-a-minute flightsan end line shagging delays line crossings drag free operation tangles heavy-duty cables Clips braided 301blinetow ribbonhand switch line guides ball bearing swivels DAVEY SYSTEMS CORPORATION ONE ROOD LANEMALVEEN PA 19355 215644-0692 Write call information Cam-Axial/Paul Continued page 48 Although first engines have conceived model airplane propulsion units mind little imagination can lead visualize other uses Since dont see need new technologies material processes should production pos sibilities utilizing latest materials methods Using current state art equiv alent present-day engine manufacturing would expect some Cam-Axial engine possible advantages might include horsepower per unit weight horse power per displacement smoother oper ation multi-cylinder configurations possible conventional engines because reduction side forces piston caused crank angle connecting rod twice power pulses natural lubri cation cam track followers pis ton shaft less dead volume between piston housing giving better pumping action cam track configuration does have harmonic can programconfigured apply power shaft rotation relative rest cycle Another possibly advantageous difference relative torque illustrated sketches RC Scale/Wischers Continued page 51 cutting punch filed piece steel dimensions equal desired lou ver Quality steel isnt critical punch after being filed shape will took exactly like individual louver Securely solder punch center metal plate roughly dimensioned 1/16 x 3-in dimension equals board width punch plate assembly epoxied boards cutting edge toward hinge about end 9 hinge After epoxy hardens drill pair holes through plate wood fit steel dowels closely dowels pressed flush plate surface An ideal dowel mate rial 3/32-in mustc wire hinged hoards brought together louver punch rests against lower board light hammer blow top board will leave imprint wood mark location cutting edge die steel 148 Model Aviation block about square 2 3-in long block set eroose cut across board block lush board surface Use file make cenain blocks cutting edge shatp square After cutting groove block carve out bit wood form relief punch two boards should now come together separated metal plate carved relief should quite close punch shape slightly larger compensate thickness metal material being punched steel block pressed groove Epoxy place necessary two hinged boards brought together punch should just clear die block gap between cutting edges too great aluminum sheet will tear rather cut Use paper shims beneath hinge leaves obtain clean cut homemade louver cutter has made hundreds louvers shows no sign wear arrangement described will make single louver row louvers material must removed lower board avoid flat tening previous form placing edge cutaway portion exact location relative die block louver spacing row auto matically maintained Set last formed louver against cutaway edge Use pencil lines etched side aluminum s guide straight rows first thought hammer blow necessary cut form louver 010 litho aluminum later found just squeezing hand pressure will cut through metal much less risk misalignment Louv ers punched rate 170 hour neat rows exactly spaced Dont get carried away did punch too sheet containing about 50 Forming corrugations Metal corrugated ailer ons used Waco Aeronca C-2 airplanes example can formed thin sheet alu mtnum using same primitive tooling foregoing text purpose 005-in sheet thickness preferred punch triangularshaped strip steel soldered across plate upper board pushes aluminum matching groove lower board lower board very hard made birch maple example groove can cut directly wood softer woods die steel will needed groove filed metal turn epoxied place using punch guide exact location important cutting groove retain sharp corners groove meets flat surface cor rugation requires three sharp corners realism punch height must match slightly continued page 152 RETRIEVER $300Qi plus shipping VLMT Ut IMILtU tMLt ULbIUN TL LMbT MbrMDLT SPECTACuLAR PLYING QUALITIES FULLY ACROBATIC 641N WINGSPAN 75 LBS USING 45 ENGINES AND up opS NEW BLA BARON EPOXY P~MER Spray raw balsa fabric Sands quickly & smoothly spray favorite color Black Baron Epoxy paint fuelproof fool proof system Look label worlds first rear utew Black Baron ~vIi-i CPEPJTES BLACK o11 DDD 420 BABYLON RD HORSHAM PA 19044 USA APPliED DESIGN CORPORATION 738 Penn St El Segundo CA N245 MINI-STRIPS PRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFine Garnet AND EFFORT $135 SANDING BELTS Water Preel TEE 7ALUMINUM EXTRUSION -~- DING BLOCK hr RUFF-STUFF Suit-adhesive saed paper LargeTnan Surface Went Wear Out 11 Inch -5225 HaedyteUne 22 Inch -$335 RUFF 6~& STUFF SELF ADHESIVE SHEET SANOMPER 6MAKE YOUR OWN SPECIAL SANDING SHAPES Ne macny ghae er dryine Medium Fine r Fine $ 75 MINIASAW $610 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE am han rugged die-cast treew emlertahin chIp-punt plank In4 h.tdin Receding anna ad B hated gives access Cuts weed piuntic metal HARDENED MUSIC WIRE Xtr bludos-3/S1 75 less depth groove die three comered file will produce 1200 groove slightly greater depth comes close shape needed Paper shims under hinge leaves will aid alignment Cutting forming first things dis covered about cutting thin sheet aluminum inadequacy ordinary tin snips tool has nasty habit stretching metal curved helix shapes quite useless purpose decided must way cut sheet hand tools would avoid curl solu tion simple Use straight edge sharp blade such ubiquitous X-Acto knife score sheet deeply crack sheet along score line Lay scored line over edge board push down uniformly another wood strip doesnt break after first bend flip sheet bend opposite direction light touch-up file along broken edge finishes cut Straight smooth cuts also possible ordinary paper cutter type long lever cutting blade will cut aluminum sheet up 010-in thick work-piece always laid paper-cutter board since scrap end unsupported will acquire curl due metal stretching leftover piece stretched edge isnt lost Remove stressed metal usually about A-in wide remainder will again flat paper cutter indispensable tool has used make metal fuel tanks 005-in brass canopy tracks frames aluminum cockpit details inspection panels Forming angles Z bends channels done clamping sheet between two hard wood blocks vise protruding metal pried over form angle using third block distribute bending force uniformly along full length metal Sharpness bend de pends upon radius inside block Very complex shapes can made two pieces joined afterward CyA cement Rivet detail can embossed litho plate impressions reverse side using blunt rounded tool proper diameter tool could spike its point filed hemispherical shape part laid face down lead hardwood block tool tapped light hammer Experiment scrap aluminum de termine what hammer force needed get correct-size impression Keeping hammer blows equal rivet minor difficulty large numbers rivet impressions made may worth additional effort fasten forming tool end pivoted lever using falling weight keep hammer force uniform Greater uniformity can also real ized using dimpled steel block place lead head pocket ideas borrowed scratch-builder model railroaders often have thousands rivets form loco motive Metalworking worthwhile skills acquire Scale modeling addition satisfaction accomplishment minimum tools metal parts often ready used out paint primer should used assure adhesion parts painted New FAI rules Under changed static scoring system proof scale much simplified threeview drawing between 1/24 1/72 scale minimum wingspan 150mm 591 required older prototypes selection photos can substitute three-view Proof color markings necessary authentic source such Profile least three photos must provided including actual subject being modeled contestant must certify builder model must supply declara tion listing comopnents didnt make Proof prototype cruising speed must furnished scale ruler no longer required no limit maximum number photos number pages presentation simplified judges guide now explains placing model checking against three-view photos Spe cific items checking judges listed Photos take precedence over three-views conflict Flight judging com plexity bonus remain unchanged static judging change emphasis details Under old FAI rules cockpit scored 0 10 although its K-factor 4 As result top-quality cockpit awarded less half score excellent fuselage wing Under new rules cockpit considered part models scale detail cant examined closely Judging dis tance Im 39 whole airplane model will moved can viewed side front rear top bottom single item will affect static score 39-in distance craftsmanship has K-factor 10 same scale ac curacy respect FAI differs AMA Sport Scale rules good craftmanship goes unnoticed 15 ft Nats planning committee has decided use new FAI rules Precision Scale event 1983 Nats new static judging schedule published last months column April 1983 along changes displacement allowed four-stroke engines Other necessary infor mation contestants included above discussion Proof Scale Referring AMA rule book delete everything under section 19 Proof Scale pages 123 124 delete everything under Annex section 110 152 Model Aviation Padded flats end curves Easytauns$210 Add 20% postage Send 25C catalog FOR 35 TO 60 MOTORS See What Get SPAN 60 Completely Prefabricated High Quality Fuselage Top Deck Obechi Veneer-Covered Foam Wings Preshaped Tail Rudder Unit ABS Cowl Clear Canopy Hardware An Easy-To-Handle 1/6 Scale Model CALIFORNIA 129ADD 6% TAX Includes Send Check Carriage Cashiers Check i~i Money Order ONLY 359 TROUSDALE DRIVE SUITE POWERMAX CHULA VISTA CALIFORNIA 92010 Telephone 619 691-0780 AT LEADING HOBBY STORESSAE FOR PRICE LIST Judging Fidelity Scale Craftsman ship else remains same including com plexity bonus flight scoring except multimotors can no longer nominated Ilight option Multi-motors remain eligible com plexity bonus means now have three kinds Stand-off Scale Nats Sport Scale Giant Scale FAI Scale Bob Do//v Wiseher S-221 Lapham Peak Rd Dc/afield WI 530/8 RC Aerobatics/Van Putte Continued page 53 over MonoKote tip works well applying MonoKote over MonoKote what after having cleaned base coat MonoKote Glass Plus flood area trimmed Glass Plus Windex works too Lay pre-cut piece trim position over pool liquid glass cleaner Now work liquid Out under trim piece fingers liquid will force air out Use fingers squeegee Now use heat gun activate adhesive trim material bond base layer MonoKate Presto have clean bubble-free trim job Hey thats great Thanks Bill Now problem klutzes rapidly running out ex cuses producing poor MonoKote jobs Several people have written say sug gestions perform some Novice Sportsman-class maneuvers have helpful Some suggested what next maneuver covered ought consensus seems lot fliers out still cant land airplane properly Since landing air plane important whether youre flying Pattern contest Ill give few hints month training quite few beginners over years Ive discovered biggest problem leaming land airplane fliers dont really know what purpose elevator watch uninformed flier trying land airplane youll probably see lot climbing diving going because hes pumping elevator Thats what elevator elevator supposed control aircraft pitch attitude other hand throttle should used control aircraft altitude Sometimes action two controls seems mixed up example elevator attitude control have use perform loop easiest explanation can think while-the elevator control provides airplanes pitch atti tude excess power over what required level flight brings airplane around loop elevator position power setting will result steady horizontal flight airplane elevator held fixed position throttle creased airplane will climb Similarly throttle reduced airplane will descend What does have landing Well trick landing keep airplane steady descent holding elevator control fixed position sink rate airplane controlled throttle remember throttle controls altitude However beginners have difficult time setting up proper landing because land ing approach too short downwind leg traffic pattem should exaggerated airplane turned onto final leg nice long descent landing Once final tum has completed throttle should reduced near-idle setting ele vator control should slowly fed until airplane horizontal slightly noseup atti tude Usually means slight constant back stick held during descent Resist temp tation change elevator control position Continued page 156 LUNU GE GREECIAL PLAN $27 OOpp PLAN$27 OOpp F G Cowl $27 OOpp F C Cowl $27 OOpp F C Pants$25 OOpp ECONO PAC$49Upp ECDNO-PAC... $70OOpp SAVt.$0 00 SAVE $900 Farman Moustique plan$17OOpp MODEL SUPPLIES Ply-Span tissue various colors Fiberglass tailbooms HL gliders towline gliders RIO gliders free flight Adhesives carbon fiber pre-formed landing skids KW prop brakes paci fier bulbs Drew circle-tow units thinwall surgical tubing Tatone engine mounts plastic-head pins other items catalog send self-addressed large envelope NFFS/MA-1 1602 Encanto Place Walnut Creek CA 94596 May 1983 153 ROGA/HANNO PRETTNER DALOTEL 150 THE QUICKIE BUILD OF ALL TIME MANY OTHER SCALE KITS AVAILABLE 1/6 SCALE MOSQUITO 95 Span $465 Glass Fire Fuselage Veneered Wings 1/4 SCALE SPITFIRE MKII 102 Span . $295 AVAILABLE FROM Balsa Construction 1/4 SCALE DALOTEL 230 90 Span$299 Glass Fibre Fuselage ered Wings 1/5 SCALE JODEL ROBIN 90 Span$399 Correction February 1983 column photo Travel Air 4000 built Roger Paul photo caption incorrectly stated model built Rich ard Barron plans really built Jerry Behrens plans See Jerrys ads MA REALISM GEE BEE RACER FINE QUALITY PLASTIC DISPLAY MODELS- PILOTS WHEELS CYLINDERS- ENGINE KITS MACHINE GUN KITS SEND $1 FOR ALLAJ3 COMPLETE CATALOG DEPT MA 181 PAWNEE ST SAN MARCOS Ca 92069
Edition: Model Aviation - 1983/05
Page Numbers: 50, 51, 148, 152, 153
Radio Control SCALE Bob & Dolly Wlscher METALWORKING Anyone having complete metalworking shop may find following de scriptions boring However us min imum equipment always looking methods producing quality models great ex pense Never having built complete model aluminum raw material arent qualified describe type work however seeing increase number metal com ponents quality Scale models degree Simplified metalworking tools can handmade ordinary materials will enable average modeler produce professional-quality metal pans louver-forming press alignment punch die key success realism possible metal cant ig nored have efforts past 10 years construct complete model aircraft using aluminum Staggerwing Chicago Expo Jon Hauser used Wylam drawings construct 69-in wingspan modelsorry didnt get weight engine basic fuselage structure duplicates real plane steel tubing plywood formers spruce stringers R above retractable gear handcrafted has scale chain driveand look detailing wheel well including placards L below models open door operating latch handle lets us see leather-covered upholstery door-compartments hinged flap R below adjustable Hamilton Standard propeller detailed Pratt & Whitney dummy engine pushrods spark plugs ignition cables features Hausers G175 Beechcraft John made extensive use formed metal pafls magicalIyshrunken real airplane 50 Model Aviation TO BE PUNCHEDSHARP CORNER SECTION A-A A PAPER SHIMS DOWELFOR ADJUSTMENT STEEL LOUVER PUNCH STEEL PLATECUTOUTTO FIT LOUVERPUNCH SHARP CORNER ON PUNCH SPACE BETWEEN EDGE VIEWLOUVERS IN ROW OF PUNCH sheet exact duplication full-size pro totype including internal structure have semi-successful flying models weight radio problems probable nega tive factors Jerry Fingler produced completely metal-covered balsa Shinn 2150A spec tacular beauty Radio noise due chafing alu minum sheets suspected reason its control difficulties changing radios using whip antenna some success attained raw material commonly used applications aluminum litho sheet 005-in 010-in thickness exterior applications supplier local newspaper time gave us sheets no charge used once print page recently have heen asked pay about 25g sheets scrap value aluminum quite hard would difficult form compound curves unless annealed heating quenching best use material tiat pieces simple forms recent models have parts made sheets Litho plate comes us liberal coating printers ink needs removed sol vent have used cleaning fluid gasoline alco hol dope thinner acetone equal success surface etched printed matter photos becomes reverse side part being formed exterior smooth Forming louvers average modeler doesnt have unlimited facilities metal work would like punch row louvers litho sheet will probably surprised find necessary materials close hand have used hardwood die holders metal em ployed actual point cutting maintain alignment between punch die two pieces hardwood X 10 average work hinged end 3-in dimension would make louvers /2 2-in long longer louvers increase board width suit 10-in length may vary depending length aluminum sheet punched hinge ordinary cabinet butt-type 2 3-in long Continued page 148 Gator RIC Products 3713 Pompano Dr Pensacola FL 32514 Phone AC 904 476-8639 ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone espanding brass ring grips sleeve bearing 10 new 60s 17MM rear bearing *SPECIAL* Both $1395 NewNew WING TUBE & SOCKETS 1 V dia aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wingstruct 2024 alum tube 24 long socket 12 long 58951 set TIGER TAIL 4 Ron Chidgeys latest best series little larger lighter slower retains honest flight characteristics ifs predecessors Especially recommended sportsman advanced pattern also good choice turn around pattern Plans construction hints- $995 ENDANNER USA MODELING PRODUCTE INC DEPTA U Po Box sie STOWN PA 19464 37-1231 ELECTRIC RETRACTS GIEZENDANNER Two Time World Champion REGULAR RETRACTS 5/32 Pattern- Up 10 lbs HEAVY DUTY RETRACTS 3/16 ForScale-lOto 18 lbs EXTRA HEAVY DUTY RETRACTS 1/4 Big Ones 18 50 lbs retract Slip Clutch prevent jamming stripping gears Left GMP-2001-R Regular Right GMP-2001 -D Deluxe Dealers Invited ELECTRONIC DIGITAL TACHOMETERS GMP-2001-D Visible display ble low battery display 2 & 3 Bladed props W liquid display Crystal controlled GMP-2001 -R Visible display Visible low battery display 2 Bladed W liquid display Crystal controlled Catalog Available Ideal beginner well master flier CHARGE IT Yes have Giezendanner Wipers 3 Bladed Low-Noise Glass Filled Props May 1983 51 Richard Guinlan displayed exquisite Douglas DC-3 Chicago Expo began Royal kit spans 83 has two K&B 408 real metal skin Its aluminum refrigerator insulation Take careful note scale props antennas landing gear details door hinges Interior has curtains seats model required two years building time GP nhuJu rn II dEi - I 1981 -82 World RIG Aerobatic C dpi Winner 7 Consecutive Las Vegas Tournament Champions Shown above Giezendanner GMP 2001 -D Digital Tachometer See Dealer Order Direct Include 75 Per Item UPS THE new POWRTOW WINCH ZIP & LONGER BATTERY LIFE Power size sailplane current draw -kiting & manual drum brakes adjustable speed parachute turn-a round foot switch 115 lb braided line use iith RETRIEVER launch-a-minute flightsan end line shagging delays line crossings drag free operation tangles heavy-duty cables Clips braided 301blinetow ribbonhand switch line guides ball bearing swivels DAVEY SYSTEMS CORPORATION ONE ROOD LANEMALVEEN PA 19355 215644-0692 Write call information Cam-Axial/Paul Continued page 48 Although first engines have conceived model airplane propulsion units mind little imagination can lead visualize other uses Since dont see need new technologies material processes should production pos sibilities utilizing latest materials methods Using current state art equiv alent present-day engine manufacturing would expect some Cam-Axial engine possible advantages might include horsepower per unit weight horse power per displacement smoother oper ation multi-cylinder configurations possible conventional engines because reduction side forces piston caused crank angle connecting rod twice power pulses natural lubri cation cam track followers pis ton shaft less dead volume between piston housing giving better pumping action cam track configuration does have harmonic can programconfigured apply power shaft rotation relative rest cycle Another possibly advantageous difference relative torque illustrated sketches RC Scale/Wischers Continued page 51 cutting punch filed piece steel dimensions equal desired lou ver Quality steel isnt critical punch after being filed shape will took exactly like individual louver Securely solder punch center metal plate roughly dimensioned 1/16 x 3-in dimension equals board width punch plate assembly epoxied boards cutting edge toward hinge about end 9 hinge After epoxy hardens drill pair holes through plate wood fit steel dowels closely dowels pressed flush plate surface An ideal dowel mate rial 3/32-in mustc wire hinged hoards brought together louver punch rests against lower board light hammer blow top board will leave imprint wood mark location cutting edge die steel 148 Model Aviation block about square 2 3-in long block set eroose cut across board block lush board surface Use file make cenain blocks cutting edge shatp square After cutting groove block carve out bit wood form relief punch two boards should now come together separated metal plate carved relief should quite close punch shape slightly larger compensate thickness metal material being punched steel block pressed groove Epoxy place necessary two hinged boards brought together punch should just clear die block gap between cutting edges too great aluminum sheet will tear rather cut Use paper shims beneath hinge leaves obtain clean cut homemade louver cutter has made hundreds louvers shows no sign wear arrangement described will make single louver row louvers material must removed lower board avoid flat tening previous form placing edge cutaway portion exact location relative die block louver spacing row auto matically maintained Set last formed louver against cutaway edge Use pencil lines etched side aluminum s guide straight rows first thought hammer blow necessary cut form louver 010 litho aluminum later found just squeezing hand pressure will cut through metal much less risk misalignment Louv ers punched rate 170 hour neat rows exactly spaced Dont get carried away did punch too sheet containing about 50 Forming corrugations Metal corrugated ailer ons used Waco Aeronca C-2 airplanes example can formed thin sheet alu mtnum using same primitive tooling foregoing text purpose 005-in sheet thickness preferred punch triangularshaped strip steel soldered across plate upper board pushes aluminum matching groove lower board lower board very hard made birch maple example groove can cut directly wood softer woods die steel will needed groove filed metal turn epoxied place using punch guide exact location important cutting groove retain sharp corners groove meets flat surface cor rugation requires three sharp corners realism punch height must match slightly continued page 152 RETRIEVER $300Qi plus shipping VLMT Ut IMILtU tMLt ULbIUN TL LMbT MbrMDLT SPECTACuLAR PLYING QUALITIES FULLY ACROBATIC 641N WINGSPAN 75 LBS USING 45 ENGINES AND up opS NEW BLA BARON EPOXY P~MER Spray raw balsa fabric Sands quickly & smoothly spray favorite color Black Baron Epoxy paint fuelproof fool proof system Look label worlds first rear utew Black Baron ~vIi-i CPEPJTES BLACK o11 DDD 420 BABYLON RD HORSHAM PA 19044 USA APPliED DESIGN CORPORATION 738 Penn St El Segundo CA N245 MINI-STRIPS PRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFine Garnet AND EFFORT $135 SANDING BELTS Water Preel TEE 7ALUMINUM EXTRUSION -~- DING BLOCK hr RUFF-STUFF Suit-adhesive saed paper LargeTnan Surface Went Wear Out 11 Inch -5225 HaedyteUne 22 Inch -$335 RUFF 6~& STUFF SELF ADHESIVE SHEET SANOMPER 6MAKE YOUR OWN SPECIAL SANDING SHAPES Ne macny ghae er dryine Medium Fine r Fine $ 75 MINIASAW $610 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE am han rugged die-cast treew emlertahin chIp-punt plank In4 h.tdin Receding anna ad B hated gives access Cuts weed piuntic metal HARDENED MUSIC WIRE Xtr bludos-3/S1 75 less depth groove die three comered file will produce 1200 groove slightly greater depth comes close shape needed Paper shims under hinge leaves will aid alignment Cutting forming first things dis covered about cutting thin sheet aluminum inadequacy ordinary tin snips tool has nasty habit stretching metal curved helix shapes quite useless purpose decided must way cut sheet hand tools would avoid curl solu tion simple Use straight edge sharp blade such ubiquitous X-Acto knife score sheet deeply crack sheet along score line Lay scored line over edge board push down uniformly another wood strip doesnt break after first bend flip sheet bend opposite direction light touch-up file along broken edge finishes cut Straight smooth cuts also possible ordinary paper cutter type long lever cutting blade will cut aluminum sheet up 010-in thick work-piece always laid paper-cutter board since scrap end unsupported will acquire curl due metal stretching leftover piece stretched edge isnt lost Remove stressed metal usually about A-in wide remainder will again flat paper cutter indispensable tool has used make metal fuel tanks 005-in brass canopy tracks frames aluminum cockpit details inspection panels Forming angles Z bends channels done clamping sheet between two hard wood blocks vise protruding metal pried over form angle using third block distribute bending force uniformly along full length metal Sharpness bend de pends upon radius inside block Very complex shapes can made two pieces joined afterward CyA cement Rivet detail can embossed litho plate impressions reverse side using blunt rounded tool proper diameter tool could spike its point filed hemispherical shape part laid face down lead hardwood block tool tapped light hammer Experiment scrap aluminum de termine what hammer force needed get correct-size impression Keeping hammer blows equal rivet minor difficulty large numbers rivet impressions made may worth additional effort fasten forming tool end pivoted lever using falling weight keep hammer force uniform Greater uniformity can also real ized using dimpled steel block place lead head pocket ideas borrowed scratch-builder model railroaders often have thousands rivets form loco motive Metalworking worthwhile skills acquire Scale modeling addition satisfaction accomplishment minimum tools metal parts often ready used out paint primer should used assure adhesion parts painted New FAI rules Under changed static scoring system proof scale much simplified threeview drawing between 1/24 1/72 scale minimum wingspan 150mm 591 required older prototypes selection photos can substitute three-view Proof color markings necessary authentic source such Profile least three photos must provided including actual subject being modeled contestant must certify builder model must supply declara tion listing comopnents didnt make Proof prototype cruising speed must furnished scale ruler no longer required no limit maximum number photos number pages presentation simplified judges guide now explains placing model checking against three-view photos Spe cific items checking judges listed Photos take precedence over three-views conflict Flight judging com plexity bonus remain unchanged static judging change emphasis details Under old FAI rules cockpit scored 0 10 although its K-factor 4 As result top-quality cockpit awarded less half score excellent fuselage wing Under new rules cockpit considered part models scale detail cant examined closely Judging dis tance Im 39 whole airplane model will moved can viewed side front rear top bottom single item will affect static score 39-in distance craftsmanship has K-factor 10 same scale ac curacy respect FAI differs AMA Sport Scale rules good craftmanship goes unnoticed 15 ft Nats planning committee has decided use new FAI rules Precision Scale event 1983 Nats new static judging schedule published last months column April 1983 along changes displacement allowed four-stroke engines Other necessary infor mation contestants included above discussion Proof Scale Referring AMA rule book delete everything under section 19 Proof Scale pages 123 124 delete everything under Annex section 110 152 Model Aviation Padded flats end curves Easytauns$210 Add 20% postage Send 25C catalog FOR 35 TO 60 MOTORS See What Get SPAN 60 Completely Prefabricated High Quality Fuselage Top Deck Obechi Veneer-Covered Foam Wings Preshaped Tail Rudder Unit ABS Cowl Clear Canopy Hardware An Easy-To-Handle 1/6 Scale Model CALIFORNIA 129ADD 6% TAX Includes Send Check Carriage Cashiers Check i~i Money Order ONLY 359 TROUSDALE DRIVE SUITE POWERMAX CHULA VISTA CALIFORNIA 92010 Telephone 619 691-0780 AT LEADING HOBBY STORESSAE FOR PRICE LIST Judging Fidelity Scale Craftsman ship else remains same including com plexity bonus flight scoring except multimotors can no longer nominated Ilight option Multi-motors remain eligible com plexity bonus means now have three kinds Stand-off Scale Nats Sport Scale Giant Scale FAI Scale Bob Do//v Wiseher S-221 Lapham Peak Rd Dc/afield WI 530/8 RC Aerobatics/Van Putte Continued page 53 over MonoKote tip works well applying MonoKote over MonoKote what after having cleaned base coat MonoKote Glass Plus flood area trimmed Glass Plus Windex works too Lay pre-cut piece trim position over pool liquid glass cleaner Now work liquid Out under trim piece fingers liquid will force air out Use fingers squeegee Now use heat gun activate adhesive trim material bond base layer MonoKate Presto have clean bubble-free trim job Hey thats great Thanks Bill Now problem klutzes rapidly running out ex cuses producing poor MonoKote jobs Several people have written say sug gestions perform some Novice Sportsman-class maneuvers have helpful Some suggested what next maneuver covered ought consensus seems lot fliers out still cant land airplane properly Since landing air plane important whether youre flying Pattern contest Ill give few hints month training quite few beginners over years Ive discovered biggest problem leaming land airplane fliers dont really know what purpose elevator watch uninformed flier trying land airplane youll probably see lot climbing diving going because hes pumping elevator Thats what elevator elevator supposed control aircraft pitch attitude other hand throttle should used control aircraft altitude Sometimes action two controls seems mixed up example elevator attitude control have use perform loop easiest explanation can think while-the elevator control provides airplanes pitch atti tude excess power over what required level flight brings airplane around loop elevator position power setting will result steady horizontal flight airplane elevator held fixed position throttle creased airplane will climb Similarly throttle reduced airplane will descend What does have landing Well trick landing keep airplane steady descent holding elevator control fixed position sink rate airplane controlled throttle remember throttle controls altitude However beginners have difficult time setting up proper landing because land ing approach too short downwind leg traffic pattem should exaggerated airplane turned onto final leg nice long descent landing Once final tum has completed throttle should reduced near-idle setting ele vator control should slowly fed until airplane horizontal slightly noseup atti tude Usually means slight constant back stick held during descent Resist temp tation change elevator control position Continued page 156 LUNU GE GREECIAL PLAN $27 OOpp PLAN$27 OOpp F G Cowl $27 OOpp F C Cowl $27 OOpp F C Pants$25 OOpp ECONO PAC$49Upp ECDNO-PAC... $70OOpp SAVt.$0 00 SAVE $900 Farman Moustique plan$17OOpp MODEL SUPPLIES Ply-Span tissue various colors Fiberglass tailbooms HL gliders towline gliders RIO gliders free flight Adhesives carbon fiber pre-formed landing skids KW prop brakes paci fier bulbs Drew circle-tow units thinwall surgical tubing Tatone engine mounts plastic-head pins other items catalog send self-addressed large envelope NFFS/MA-1 1602 Encanto Place Walnut Creek CA 94596 May 1983 153 ROGA/HANNO PRETTNER DALOTEL 150 THE QUICKIE BUILD OF ALL TIME MANY OTHER SCALE KITS AVAILABLE 1/6 SCALE MOSQUITO 95 Span $465 Glass Fire Fuselage Veneered Wings 1/4 SCALE SPITFIRE MKII 102 Span . $295 AVAILABLE FROM Balsa Construction 1/4 SCALE DALOTEL 230 90 Span$299 Glass Fibre Fuselage ered Wings 1/5 SCALE JODEL ROBIN 90 Span$399 Correction February 1983 column photo Travel Air 4000 built Roger Paul photo caption incorrectly stated model built Rich ard Barron plans really built Jerry Behrens plans See Jerrys ads MA REALISM GEE BEE RACER FINE QUALITY PLASTIC DISPLAY MODELS- PILOTS WHEELS CYLINDERS- ENGINE KITS MACHINE GUN KITS SEND $1 FOR ALLAJ3 COMPLETE CATALOG DEPT MA 181 PAWNEE ST SAN MARCOS Ca 92069
Edition: Model Aviation - 1983/05
Page Numbers: 50, 51, 148, 152, 153
Radio Control SCALE Bob & Dolly Wlscher METALWORKING Anyone having complete metalworking shop may find following de scriptions boring However us min imum equipment always looking methods producing quality models great ex pense Never having built complete model aluminum raw material arent qualified describe type work however seeing increase number metal com ponents quality Scale models degree Simplified metalworking tools can handmade ordinary materials will enable average modeler produce professional-quality metal pans louver-forming press alignment punch die key success realism possible metal cant ig nored have efforts past 10 years construct complete model aircraft using aluminum Staggerwing Chicago Expo Jon Hauser used Wylam drawings construct 69-in wingspan modelsorry didnt get weight engine basic fuselage structure duplicates real plane steel tubing plywood formers spruce stringers R above retractable gear handcrafted has scale chain driveand look detailing wheel well including placards L below models open door operating latch handle lets us see leather-covered upholstery door-compartments hinged flap R below adjustable Hamilton Standard propeller detailed Pratt & Whitney dummy engine pushrods spark plugs ignition cables features Hausers G175 Beechcraft John made extensive use formed metal pafls magicalIyshrunken real airplane 50 Model Aviation TO BE PUNCHEDSHARP CORNER SECTION A-A A PAPER SHIMS DOWELFOR ADJUSTMENT STEEL LOUVER PUNCH STEEL PLATECUTOUTTO FIT LOUVERPUNCH SHARP CORNER ON PUNCH SPACE BETWEEN EDGE VIEWLOUVERS IN ROW OF PUNCH sheet exact duplication full-size pro totype including internal structure have semi-successful flying models weight radio problems probable nega tive factors Jerry Fingler produced completely metal-covered balsa Shinn 2150A spec tacular beauty Radio noise due chafing alu minum sheets suspected reason its control difficulties changing radios using whip antenna some success attained raw material commonly used applications aluminum litho sheet 005-in 010-in thickness exterior applications supplier local newspaper time gave us sheets no charge used once print page recently have heen asked pay about 25g sheets scrap value aluminum quite hard would difficult form compound curves unless annealed heating quenching best use material tiat pieces simple forms recent models have parts made sheets Litho plate comes us liberal coating printers ink needs removed sol vent have used cleaning fluid gasoline alco hol dope thinner acetone equal success surface etched printed matter photos becomes reverse side part being formed exterior smooth Forming louvers average modeler doesnt have unlimited facilities metal work would like punch row louvers litho sheet will probably surprised find necessary materials close hand have used hardwood die holders metal em ployed actual point cutting maintain alignment between punch die two pieces hardwood X 10 average work hinged end 3-in dimension would make louvers /2 2-in long longer louvers increase board width suit 10-in length may vary depending length aluminum sheet punched hinge ordinary cabinet butt-type 2 3-in long Continued page 148 Gator RIC Products 3713 Pompano Dr Pensacola FL 32514 Phone AC 904 476-8639 ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone espanding brass ring grips sleeve bearing 10 new 60s 17MM rear bearing *SPECIAL* Both $1395 NewNew WING TUBE & SOCKETS 1 V dia aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wingstruct 2024 alum tube 24 long socket 12 long 58951 set TIGER TAIL 4 Ron Chidgeys latest best series little larger lighter slower retains honest flight characteristics ifs predecessors Especially recommended sportsman advanced pattern also good choice turn around pattern Plans construction hints- $995 ENDANNER USA MODELING PRODUCTE INC DEPTA U Po Box sie STOWN PA 19464 37-1231 ELECTRIC RETRACTS GIEZENDANNER Two Time World Champion REGULAR RETRACTS 5/32 Pattern- Up 10 lbs HEAVY DUTY RETRACTS 3/16 ForScale-lOto 18 lbs EXTRA HEAVY DUTY RETRACTS 1/4 Big Ones 18 50 lbs retract Slip Clutch prevent jamming stripping gears Left GMP-2001-R Regular Right GMP-2001 -D Deluxe Dealers Invited ELECTRONIC DIGITAL TACHOMETERS GMP-2001-D Visible display ble low battery display 2 & 3 Bladed props W liquid display Crystal controlled GMP-2001 -R Visible display Visible low battery display 2 Bladed W liquid display Crystal controlled Catalog Available Ideal beginner well master flier CHARGE IT Yes have Giezendanner Wipers 3 Bladed Low-Noise Glass Filled Props May 1983 51 Richard Guinlan displayed exquisite Douglas DC-3 Chicago Expo began Royal kit spans 83 has two K&B 408 real metal skin Its aluminum refrigerator insulation Take careful note scale props antennas landing gear details door hinges Interior has curtains seats model required two years building time GP nhuJu rn II dEi - I 1981 -82 World RIG Aerobatic C dpi Winner 7 Consecutive Las Vegas Tournament Champions Shown above Giezendanner GMP 2001 -D Digital Tachometer See Dealer Order Direct Include 75 Per Item UPS THE new POWRTOW WINCH ZIP & LONGER BATTERY LIFE Power size sailplane current draw -kiting & manual drum brakes adjustable speed parachute turn-a round foot switch 115 lb braided line use iith RETRIEVER launch-a-minute flightsan end line shagging delays line crossings drag free operation tangles heavy-duty cables Clips braided 301blinetow ribbonhand switch line guides ball bearing swivels DAVEY SYSTEMS CORPORATION ONE ROOD LANEMALVEEN PA 19355 215644-0692 Write call information Cam-Axial/Paul Continued page 48 Although first engines have conceived model airplane propulsion units mind little imagination can lead visualize other uses Since dont see need new technologies material processes should production pos sibilities utilizing latest materials methods Using current state art equiv alent present-day engine manufacturing would expect some Cam-Axial engine possible advantages might include horsepower per unit weight horse power per displacement smoother oper ation multi-cylinder configurations possible conventional engines because reduction side forces piston caused crank angle connecting rod twice power pulses natural lubri cation cam track followers pis ton shaft less dead volume between piston housing giving better pumping action cam track configuration does have harmonic can programconfigured apply power shaft rotation relative rest cycle Another possibly advantageous difference relative torque illustrated sketches RC Scale/Wischers Continued page 51 cutting punch filed piece steel dimensions equal desired lou ver Quality steel isnt critical punch after being filed shape will took exactly like individual louver Securely solder punch center metal plate roughly dimensioned 1/16 x 3-in dimension equals board width punch plate assembly epoxied boards cutting edge toward hinge about end 9 hinge After epoxy hardens drill pair holes through plate wood fit steel dowels closely dowels pressed flush plate surface An ideal dowel mate rial 3/32-in mustc wire hinged hoards brought together louver punch rests against lower board light hammer blow top board will leave imprint wood mark location cutting edge die steel 148 Model Aviation block about square 2 3-in long block set eroose cut across board block lush board surface Use file make cenain blocks cutting edge shatp square After cutting groove block carve out bit wood form relief punch two boards should now come together separated metal plate carved relief should quite close punch shape slightly larger compensate thickness metal material being punched steel block pressed groove Epoxy place necessary two hinged boards brought together punch should just clear die block gap between cutting edges too great aluminum sheet will tear rather cut Use paper shims beneath hinge leaves obtain clean cut homemade louver cutter has made hundreds louvers shows no sign wear arrangement described will make single louver row louvers material must removed lower board avoid flat tening previous form placing edge cutaway portion exact location relative die block louver spacing row auto matically maintained Set last formed louver against cutaway edge Use pencil lines etched side aluminum s guide straight rows first thought hammer blow necessary cut form louver 010 litho aluminum later found just squeezing hand pressure will cut through metal much less risk misalignment Louv ers punched rate 170 hour neat rows exactly spaced Dont get carried away did punch too sheet containing about 50 Forming corrugations Metal corrugated ailer ons used Waco Aeronca C-2 airplanes example can formed thin sheet alu mtnum using same primitive tooling foregoing text purpose 005-in sheet thickness preferred punch triangularshaped strip steel soldered across plate upper board pushes aluminum matching groove lower board lower board very hard made birch maple example groove can cut directly wood softer woods die steel will needed groove filed metal turn epoxied place using punch guide exact location important cutting groove retain sharp corners groove meets flat surface cor rugation requires three sharp corners realism punch height must match slightly continued page 152 RETRIEVER $300Qi plus shipping VLMT Ut IMILtU tMLt ULbIUN TL LMbT MbrMDLT SPECTACuLAR PLYING QUALITIES FULLY ACROBATIC 641N WINGSPAN 75 LBS USING 45 ENGINES AND up opS NEW BLA BARON EPOXY P~MER Spray raw balsa fabric Sands quickly & smoothly spray favorite color Black Baron Epoxy paint fuelproof fool proof system Look label worlds first rear utew Black Baron ~vIi-i CPEPJTES BLACK o11 DDD 420 BABYLON RD HORSHAM PA 19044 USA APPliED DESIGN CORPORATION 738 Penn St El Segundo CA N245 MINI-STRIPS PRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFine Garnet AND EFFORT $135 SANDING BELTS Water Preel TEE 7ALUMINUM EXTRUSION -~- DING BLOCK hr RUFF-STUFF Suit-adhesive saed paper LargeTnan Surface Went Wear Out 11 Inch -5225 HaedyteUne 22 Inch -$335 RUFF 6~& STUFF SELF ADHESIVE SHEET SANOMPER 6MAKE YOUR OWN SPECIAL SANDING SHAPES Ne macny ghae er dryine Medium Fine r Fine $ 75 MINIASAW $610 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE am han rugged die-cast treew emlertahin chIp-punt plank In4 h.tdin Receding anna ad B hated gives access Cuts weed piuntic metal HARDENED MUSIC WIRE Xtr bludos-3/S1 75 less depth groove die three comered file will produce 1200 groove slightly greater depth comes close shape needed Paper shims under hinge leaves will aid alignment Cutting forming first things dis covered about cutting thin sheet aluminum inadequacy ordinary tin snips tool has nasty habit stretching metal curved helix shapes quite useless purpose decided must way cut sheet hand tools would avoid curl solu tion simple Use straight edge sharp blade such ubiquitous X-Acto knife score sheet deeply crack sheet along score line Lay scored line over edge board push down uniformly another wood strip doesnt break after first bend flip sheet bend opposite direction light touch-up file along broken edge finishes cut Straight smooth cuts also possible ordinary paper cutter type long lever cutting blade will cut aluminum sheet up 010-in thick work-piece always laid paper-cutter board since scrap end unsupported will acquire curl due metal stretching leftover piece stretched edge isnt lost Remove stressed metal usually about A-in wide remainder will again flat paper cutter indispensable tool has used make metal fuel tanks 005-in brass canopy tracks frames aluminum cockpit details inspection panels Forming angles Z bends channels done clamping sheet between two hard wood blocks vise protruding metal pried over form angle using third block distribute bending force uniformly along full length metal Sharpness bend de pends upon radius inside block Very complex shapes can made two pieces joined afterward CyA cement Rivet detail can embossed litho plate impressions reverse side using blunt rounded tool proper diameter tool could spike its point filed hemispherical shape part laid face down lead hardwood block tool tapped light hammer Experiment scrap aluminum de termine what hammer force needed get correct-size impression Keeping hammer blows equal rivet minor difficulty large numbers rivet impressions made may worth additional effort fasten forming tool end pivoted lever using falling weight keep hammer force uniform Greater uniformity can also real ized using dimpled steel block place lead head pocket ideas borrowed scratch-builder model railroaders often have thousands rivets form loco motive Metalworking worthwhile skills acquire Scale modeling addition satisfaction accomplishment minimum tools metal parts often ready used out paint primer should used assure adhesion parts painted New FAI rules Under changed static scoring system proof scale much simplified threeview drawing between 1/24 1/72 scale minimum wingspan 150mm 591 required older prototypes selection photos can substitute three-view Proof color markings necessary authentic source such Profile least three photos must provided including actual subject being modeled contestant must certify builder model must supply declara tion listing comopnents didnt make Proof prototype cruising speed must furnished scale ruler no longer required no limit maximum number photos number pages presentation simplified judges guide now explains placing model checking against three-view photos Spe cific items checking judges listed Photos take precedence over three-views conflict Flight judging com plexity bonus remain unchanged static judging change emphasis details Under old FAI rules cockpit scored 0 10 although its K-factor 4 As result top-quality cockpit awarded less half score excellent fuselage wing Under new rules cockpit considered part models scale detail cant examined closely Judging dis tance Im 39 whole airplane model will moved can viewed side front rear top bottom single item will affect static score 39-in distance craftsmanship has K-factor 10 same scale ac curacy respect FAI differs AMA Sport Scale rules good craftmanship goes unnoticed 15 ft Nats planning committee has decided use new FAI rules Precision Scale event 1983 Nats new static judging schedule published last months column April 1983 along changes displacement allowed four-stroke engines Other necessary infor mation contestants included above discussion Proof Scale Referring AMA rule book delete everything under section 19 Proof Scale pages 123 124 delete everything under Annex section 110 152 Model Aviation Padded flats end curves Easytauns$210 Add 20% postage Send 25C catalog FOR 35 TO 60 MOTORS See What Get SPAN 60 Completely Prefabricated High Quality Fuselage Top Deck Obechi Veneer-Covered Foam Wings Preshaped Tail Rudder Unit ABS Cowl Clear Canopy Hardware An Easy-To-Handle 1/6 Scale Model CALIFORNIA 129ADD 6% TAX Includes Send Check Carriage Cashiers Check i~i Money Order ONLY 359 TROUSDALE DRIVE SUITE POWERMAX CHULA VISTA CALIFORNIA 92010 Telephone 619 691-0780 AT LEADING HOBBY STORESSAE FOR PRICE LIST Judging Fidelity Scale Craftsman ship else remains same including com plexity bonus flight scoring except multimotors can no longer nominated Ilight option Multi-motors remain eligible com plexity bonus means now have three kinds Stand-off Scale Nats Sport Scale Giant Scale FAI Scale Bob Do//v Wiseher S-221 Lapham Peak Rd Dc/afield WI 530/8 RC Aerobatics/Van Putte Continued page 53 over MonoKote tip works well applying MonoKote over MonoKote what after having cleaned base coat MonoKote Glass Plus flood area trimmed Glass Plus Windex works too Lay pre-cut piece trim position over pool liquid glass cleaner Now work liquid Out under trim piece fingers liquid will force air out Use fingers squeegee Now use heat gun activate adhesive trim material bond base layer MonoKate Presto have clean bubble-free trim job Hey thats great Thanks Bill Now problem klutzes rapidly running out ex cuses producing poor MonoKote jobs Several people have written say sug gestions perform some Novice Sportsman-class maneuvers have helpful Some suggested what next maneuver covered ought consensus seems lot fliers out still cant land airplane properly Since landing air plane important whether youre flying Pattern contest Ill give few hints month training quite few beginners over years Ive discovered biggest problem leaming land airplane fliers dont really know what purpose elevator watch uninformed flier trying land airplane youll probably see lot climbing diving going because hes pumping elevator Thats what elevator elevator supposed control aircraft pitch attitude other hand throttle should used control aircraft altitude Sometimes action two controls seems mixed up example elevator attitude control have use perform loop easiest explanation can think while-the elevator control provides airplanes pitch atti tude excess power over what required level flight brings airplane around loop elevator position power setting will result steady horizontal flight airplane elevator held fixed position throttle creased airplane will climb Similarly throttle reduced airplane will descend What does have landing Well trick landing keep airplane steady descent holding elevator control fixed position sink rate airplane controlled throttle remember throttle controls altitude However beginners have difficult time setting up proper landing because land ing approach too short downwind leg traffic pattem should exaggerated airplane turned onto final leg nice long descent landing Once final tum has completed throttle should reduced near-idle setting ele vator control should slowly fed until airplane horizontal slightly noseup atti tude Usually means slight constant back stick held during descent Resist temp tation change elevator control position Continued page 156 LUNU GE GREECIAL PLAN $27 OOpp PLAN$27 OOpp F G Cowl $27 OOpp F C Cowl $27 OOpp F C Pants$25 OOpp ECONO PAC$49Upp ECDNO-PAC... $70OOpp SAVt.$0 00 SAVE $900 Farman Moustique plan$17OOpp MODEL SUPPLIES Ply-Span tissue various colors Fiberglass tailbooms HL gliders towline gliders RIO gliders free flight Adhesives carbon fiber pre-formed landing skids KW prop brakes paci fier bulbs Drew circle-tow units thinwall surgical tubing Tatone engine mounts plastic-head pins other items catalog send self-addressed large envelope NFFS/MA-1 1602 Encanto Place Walnut Creek CA 94596 May 1983 153 ROGA/HANNO PRETTNER DALOTEL 150 THE QUICKIE BUILD OF ALL TIME MANY OTHER SCALE KITS AVAILABLE 1/6 SCALE MOSQUITO 95 Span $465 Glass Fire Fuselage Veneered Wings 1/4 SCALE SPITFIRE MKII 102 Span . $295 AVAILABLE FROM Balsa Construction 1/4 SCALE DALOTEL 230 90 Span$299 Glass Fibre Fuselage ered Wings 1/5 SCALE JODEL ROBIN 90 Span$399 Correction February 1983 column photo Travel Air 4000 built Roger Paul photo caption incorrectly stated model built Rich ard Barron plans really built Jerry Behrens plans See Jerrys ads MA REALISM GEE BEE RACER FINE QUALITY PLASTIC DISPLAY MODELS- PILOTS WHEELS CYLINDERS- ENGINE KITS MACHINE GUN KITS SEND $1 FOR ALLAJ3 COMPLETE CATALOG DEPT MA 181 PAWNEE ST SAN MARCOS Ca 92069
Edition: Model Aviation - 1983/05
Page Numbers: 50, 51, 148, 152, 153
Radio Control SCALE Bob & Dolly Wlscher METALWORKING Anyone having complete metalworking shop may find following de scriptions boring However us min imum equipment always looking methods producing quality models great ex pense Never having built complete model aluminum raw material arent qualified describe type work however seeing increase number metal com ponents quality Scale models degree Simplified metalworking tools can handmade ordinary materials will enable average modeler produce professional-quality metal pans louver-forming press alignment punch die key success realism possible metal cant ig nored have efforts past 10 years construct complete model aircraft using aluminum Staggerwing Chicago Expo Jon Hauser used Wylam drawings construct 69-in wingspan modelsorry didnt get weight engine basic fuselage structure duplicates real plane steel tubing plywood formers spruce stringers R above retractable gear handcrafted has scale chain driveand look detailing wheel well including placards L below models open door operating latch handle lets us see leather-covered upholstery door-compartments hinged flap R below adjustable Hamilton Standard propeller detailed Pratt & Whitney dummy engine pushrods spark plugs ignition cables features Hausers G175 Beechcraft John made extensive use formed metal pafls magicalIyshrunken real airplane 50 Model Aviation TO BE PUNCHEDSHARP CORNER SECTION A-A A PAPER SHIMS DOWELFOR ADJUSTMENT STEEL LOUVER PUNCH STEEL PLATECUTOUTTO FIT LOUVERPUNCH SHARP CORNER ON PUNCH SPACE BETWEEN EDGE VIEWLOUVERS IN ROW OF PUNCH sheet exact duplication full-size pro totype including internal structure have semi-successful flying models weight radio problems probable nega tive factors Jerry Fingler produced completely metal-covered balsa Shinn 2150A spec tacular beauty Radio noise due chafing alu minum sheets suspected reason its control difficulties changing radios using whip antenna some success attained raw material commonly used applications aluminum litho sheet 005-in 010-in thickness exterior applications supplier local newspaper time gave us sheets no charge used once print page recently have heen asked pay about 25g sheets scrap value aluminum quite hard would difficult form compound curves unless annealed heating quenching best use material tiat pieces simple forms recent models have parts made sheets Litho plate comes us liberal coating printers ink needs removed sol vent have used cleaning fluid gasoline alco hol dope thinner acetone equal success surface etched printed matter photos becomes reverse side part being formed exterior smooth Forming louvers average modeler doesnt have unlimited facilities metal work would like punch row louvers litho sheet will probably surprised find necessary materials close hand have used hardwood die holders metal em ployed actual point cutting maintain alignment between punch die two pieces hardwood X 10 average work hinged end 3-in dimension would make louvers /2 2-in long longer louvers increase board width suit 10-in length may vary depending length aluminum sheet punched hinge ordinary cabinet butt-type 2 3-in long Continued page 148 Gator RIC Products 3713 Pompano Dr Pensacola FL 32514 Phone AC 904 476-8639 ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone espanding brass ring grips sleeve bearing 10 new 60s 17MM rear bearing *SPECIAL* Both $1395 NewNew WING TUBE & SOCKETS 1 V dia aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wingstruct 2024 alum tube 24 long socket 12 long 58951 set TIGER TAIL 4 Ron Chidgeys latest best series little larger lighter slower retains honest flight characteristics ifs predecessors Especially recommended sportsman advanced pattern also good choice turn around pattern Plans construction hints- $995 ENDANNER USA MODELING PRODUCTE INC DEPTA U Po Box sie STOWN PA 19464 37-1231 ELECTRIC RETRACTS GIEZENDANNER Two Time World Champion REGULAR RETRACTS 5/32 Pattern- Up 10 lbs HEAVY DUTY RETRACTS 3/16 ForScale-lOto 18 lbs EXTRA HEAVY DUTY RETRACTS 1/4 Big Ones 18 50 lbs retract Slip Clutch prevent jamming stripping gears Left GMP-2001-R Regular Right GMP-2001 -D Deluxe Dealers Invited ELECTRONIC DIGITAL TACHOMETERS GMP-2001-D Visible display ble low battery display 2 & 3 Bladed props W liquid display Crystal controlled GMP-2001 -R Visible display Visible low battery display 2 Bladed W liquid display Crystal controlled Catalog Available Ideal beginner well master flier CHARGE IT Yes have Giezendanner Wipers 3 Bladed Low-Noise Glass Filled Props May 1983 51 Richard Guinlan displayed exquisite Douglas DC-3 Chicago Expo began Royal kit spans 83 has two K&B 408 real metal skin Its aluminum refrigerator insulation Take careful note scale props antennas landing gear details door hinges Interior has curtains seats model required two years building time GP nhuJu rn II dEi - I 1981 -82 World RIG Aerobatic C dpi Winner 7 Consecutive Las Vegas Tournament Champions Shown above Giezendanner GMP 2001 -D Digital Tachometer See Dealer Order Direct Include 75 Per Item UPS THE new POWRTOW WINCH ZIP & LONGER BATTERY LIFE Power size sailplane current draw -kiting & manual drum brakes adjustable speed parachute turn-a round foot switch 115 lb braided line use iith RETRIEVER launch-a-minute flightsan end line shagging delays line crossings drag free operation tangles heavy-duty cables Clips braided 301blinetow ribbonhand switch line guides ball bearing swivels DAVEY SYSTEMS CORPORATION ONE ROOD LANEMALVEEN PA 19355 215644-0692 Write call information Cam-Axial/Paul Continued page 48 Although first engines have conceived model airplane propulsion units mind little imagination can lead visualize other uses Since dont see need new technologies material processes should production pos sibilities utilizing latest materials methods Using current state art equiv alent present-day engine manufacturing would expect some Cam-Axial engine possible advantages might include horsepower per unit weight horse power per displacement smoother oper ation multi-cylinder configurations possible conventional engines because reduction side forces piston caused crank angle connecting rod twice power pulses natural lubri cation cam track followers pis ton shaft less dead volume between piston housing giving better pumping action cam track configuration does have harmonic can programconfigured apply power shaft rotation relative rest cycle Another possibly advantageous difference relative torque illustrated sketches RC Scale/Wischers Continued page 51 cutting punch filed piece steel dimensions equal desired lou ver Quality steel isnt critical punch after being filed shape will took exactly like individual louver Securely solder punch center metal plate roughly dimensioned 1/16 x 3-in dimension equals board width punch plate assembly epoxied boards cutting edge toward hinge about end 9 hinge After epoxy hardens drill pair holes through plate wood fit steel dowels closely dowels pressed flush plate surface An ideal dowel mate rial 3/32-in mustc wire hinged hoards brought together louver punch rests against lower board light hammer blow top board will leave imprint wood mark location cutting edge die steel 148 Model Aviation block about square 2 3-in long block set eroose cut across board block lush board surface Use file make cenain blocks cutting edge shatp square After cutting groove block carve out bit wood form relief punch two boards should now come together separated metal plate carved relief should quite close punch shape slightly larger compensate thickness metal material being punched steel block pressed groove Epoxy place necessary two hinged boards brought together punch should just clear die block gap between cutting edges too great aluminum sheet will tear rather cut Use paper shims beneath hinge leaves obtain clean cut homemade louver cutter has made hundreds louvers shows no sign wear arrangement described will make single louver row louvers material must removed lower board avoid flat tening previous form placing edge cutaway portion exact location relative die block louver spacing row auto matically maintained Set last formed louver against cutaway edge Use pencil lines etched side aluminum s guide straight rows first thought hammer blow necessary cut form louver 010 litho aluminum later found just squeezing hand pressure will cut through metal much less risk misalignment Louv ers punched rate 170 hour neat rows exactly spaced Dont get carried away did punch too sheet containing about 50 Forming corrugations Metal corrugated ailer ons used Waco Aeronca C-2 airplanes example can formed thin sheet alu mtnum using same primitive tooling foregoing text purpose 005-in sheet thickness preferred punch triangularshaped strip steel soldered across plate upper board pushes aluminum matching groove lower board lower board very hard made birch maple example groove can cut directly wood softer woods die steel will needed groove filed metal turn epoxied place using punch guide exact location important cutting groove retain sharp corners groove meets flat surface cor rugation requires three sharp corners realism punch height must match slightly continued page 152 RETRIEVER $300Qi plus shipping VLMT Ut IMILtU tMLt ULbIUN TL LMbT MbrMDLT SPECTACuLAR PLYING QUALITIES FULLY ACROBATIC 641N WINGSPAN 75 LBS USING 45 ENGINES AND up opS NEW BLA BARON EPOXY P~MER Spray raw balsa fabric Sands quickly & smoothly spray favorite color Black Baron Epoxy paint fuelproof fool proof system Look label worlds first rear utew Black Baron ~vIi-i CPEPJTES BLACK o11 DDD 420 BABYLON RD HORSHAM PA 19044 USA APPliED DESIGN CORPORATION 738 Penn St El Segundo CA N245 MINI-STRIPS PRECISION DIE-CUT Medium Garnet SAVES TIMEREPLACEMENTFine Garnet AND EFFORT $135 SANDING BELTS Water Preel TEE 7ALUMINUM EXTRUSION -~- DING BLOCK hr RUFF-STUFF Suit-adhesive saed paper LargeTnan Surface Went Wear Out 11 Inch -5225 HaedyteUne 22 Inch -$335 RUFF 6~& STUFF SELF ADHESIVE SHEET SANOMPER 6MAKE YOUR OWN SPECIAL SANDING SHAPES Ne macny ghae er dryine Medium Fine r Fine $ 75 MINIASAW $610 COMPACT 10 inch HACK SAW SAWS ANYTHING ANYWHERE am han rugged die-cast treew emlertahin chIp-punt plank In4 h.tdin Receding anna ad B hated gives access Cuts weed piuntic metal HARDENED MUSIC WIRE Xtr bludos-3/S1 75 less depth groove die three comered file will produce 1200 groove slightly greater depth comes close shape needed Paper shims under hinge leaves will aid alignment Cutting forming first things dis covered about cutting thin sheet aluminum inadequacy ordinary tin snips tool has nasty habit stretching metal curved helix shapes quite useless purpose decided must way cut sheet hand tools would avoid curl solu tion simple Use straight edge sharp blade such ubiquitous X-Acto knife score sheet deeply crack sheet along score line Lay scored line over edge board push down uniformly another wood strip doesnt break after first bend flip sheet bend opposite direction light touch-up file along broken edge finishes cut Straight smooth cuts also possible ordinary paper cutter type long lever cutting blade will cut aluminum sheet up 010-in thick work-piece always laid paper-cutter board since scrap end unsupported will acquire curl due metal stretching leftover piece stretched edge isnt lost Remove stressed metal usually about A-in wide remainder will again flat paper cutter indispensable tool has used make metal fuel tanks 005-in brass canopy tracks frames aluminum cockpit details inspection panels Forming angles Z bends channels done clamping sheet between two hard wood blocks vise protruding metal pried over form angle using third block distribute bending force uniformly along full length metal Sharpness bend de pends upon radius inside block Very complex shapes can made two pieces joined afterward CyA cement Rivet detail can embossed litho plate impressions reverse side using blunt rounded tool proper diameter tool could spike its point filed hemispherical shape part laid face down lead hardwood block tool tapped light hammer Experiment scrap aluminum de termine what hammer force needed get correct-size impression Keeping hammer blows equal rivet minor difficulty large numbers rivet impressions made may worth additional effort fasten forming tool end pivoted lever using falling weight keep hammer force uniform Greater uniformity can also real ized using dimpled steel block place lead head pocket ideas borrowed scratch-builder model railroaders often have thousands rivets form loco motive Metalworking worthwhile skills acquire Scale modeling addition satisfaction accomplishment minimum tools metal parts often ready used out paint primer should used assure adhesion parts painted New FAI rules Under changed static scoring system proof scale much simplified threeview drawing between 1/24 1/72 scale minimum wingspan 150mm 591 required older prototypes selection photos can substitute three-view Proof color markings necessary authentic source such Profile least three photos must provided including actual subject being modeled contestant must certify builder model must supply declara tion listing comopnents didnt make Proof prototype cruising speed must furnished scale ruler no longer required no limit maximum number photos number pages presentation simplified judges guide now explains placing model checking against three-view photos Spe cific items checking judges listed Photos take precedence over three-views conflict Flight judging com plexity bonus remain unchanged static judging change emphasis details Under old FAI rules cockpit scored 0 10 although its K-factor 4 As result top-quality cockpit awarded less half score excellent fuselage wing Under new rules cockpit considered part models scale detail cant examined closely Judging dis tance Im 39 whole airplane model will moved can viewed side front rear top bottom single item will affect static score 39-in distance craftsmanship has K-factor 10 same scale ac curacy respect FAI differs AMA Sport Scale rules good craftmanship goes unnoticed 15 ft Nats planning committee has decided use new FAI rules Precision Scale event 1983 Nats new static judging schedule published last months column April 1983 along changes displacement allowed four-stroke engines Other necessary infor mation contestants included above discussion Proof Scale Referring AMA rule book delete everything under section 19 Proof Scale pages 123 124 delete everything under Annex section 110 152 Model Aviation Padded flats end curves Easytauns$210 Add 20% postage Send 25C catalog FOR 35 TO 60 MOTORS See What Get SPAN 60 Completely Prefabricated High Quality Fuselage Top Deck Obechi Veneer-Covered Foam Wings Preshaped Tail Rudder Unit ABS Cowl Clear Canopy Hardware An Easy-To-Handle 1/6 Scale Model CALIFORNIA 129ADD 6% TAX Includes Send Check Carriage Cashiers Check i~i Money Order ONLY 359 TROUSDALE DRIVE SUITE POWERMAX CHULA VISTA CALIFORNIA 92010 Telephone 619 691-0780 AT LEADING HOBBY STORESSAE FOR PRICE LIST Judging Fidelity Scale Craftsman ship else remains same including com plexity bonus flight scoring except multimotors can no longer nominated Ilight option Multi-motors remain eligible com plexity bonus means now have three kinds Stand-off Scale Nats Sport Scale Giant Scale FAI Scale Bob Do//v Wiseher S-221 Lapham Peak Rd Dc/afield WI 530/8 RC Aerobatics/Van Putte Continued page 53 over MonoKote tip works well applying MonoKote over MonoKote what after having cleaned base coat MonoKote Glass Plus flood area trimmed Glass Plus Windex works too Lay pre-cut piece trim position over pool liquid glass cleaner Now work liquid Out under trim piece fingers liquid will force air out Use fingers squeegee Now use heat gun activate adhesive trim material bond base layer MonoKate Presto have clean bubble-free trim job Hey thats great Thanks Bill Now problem klutzes rapidly running out ex cuses producing poor MonoKote jobs Several people have written say sug gestions perform some Novice Sportsman-class maneuvers have helpful Some suggested what next maneuver covered ought consensus seems lot fliers out still cant land airplane properly Since landing air plane important whether youre flying Pattern contest Ill give few hints month training quite few beginners over years Ive discovered biggest problem leaming land airplane fliers dont really know what purpose elevator watch uninformed flier trying land airplane youll probably see lot climbing diving going because hes pumping elevator Thats what elevator elevator supposed control aircraft pitch attitude other hand throttle should used control aircraft altitude Sometimes action two controls seems mixed up example elevator attitude control have use perform loop easiest explanation can think while-the elevator control provides airplanes pitch atti tude excess power over what required level flight brings airplane around loop elevator position power setting will result steady horizontal flight airplane elevator held fixed position throttle creased airplane will climb Similarly throttle reduced airplane will descend What does have landing Well trick landing keep airplane steady descent holding elevator control fixed position sink rate airplane controlled throttle remember throttle controls altitude However beginners have difficult time setting up proper landing because land ing approach too short downwind leg traffic pattem should exaggerated airplane turned onto final leg nice long descent landing Once final tum has completed throttle should reduced near-idle setting ele vator control should slowly fed until airplane horizontal slightly noseup atti tude Usually means slight constant back stick held during descent Resist temp tation change elevator control position Continued page 156 LUNU GE GREECIAL PLAN $27 OOpp PLAN$27 OOpp F G Cowl $27 OOpp F C Cowl $27 OOpp F C Pants$25 OOpp ECONO PAC$49Upp ECDNO-PAC... $70OOpp SAVt.$0 00 SAVE $900 Farman Moustique plan$17OOpp MODEL SUPPLIES Ply-Span tissue various colors Fiberglass tailbooms HL gliders towline gliders RIO gliders free flight Adhesives carbon fiber pre-formed landing skids KW prop brakes paci fier bulbs Drew circle-tow units thinwall surgical tubing Tatone engine mounts plastic-head pins other items catalog send self-addressed large envelope NFFS/MA-1 1602 Encanto Place Walnut Creek CA 94596 May 1983 153 ROGA/HANNO PRETTNER DALOTEL 150 THE QUICKIE BUILD OF ALL TIME MANY OTHER SCALE KITS AVAILABLE 1/6 SCALE MOSQUITO 95 Span $465 Glass Fire Fuselage Veneered Wings 1/4 SCALE SPITFIRE MKII 102 Span . $295 AVAILABLE FROM Balsa Construction 1/4 SCALE DALOTEL 230 90 Span$299 Glass Fibre Fuselage ered Wings 1/5 SCALE JODEL ROBIN 90 Span$399 Correction February 1983 column photo Travel Air 4000 built Roger Paul photo caption incorrectly stated model built Rich ard Barron plans really built Jerry Behrens plans See Jerrys ads MA REALISM GEE BEE RACER FINE QUALITY PLASTIC DISPLAY MODELS- PILOTS WHEELS CYLINDERS- ENGINE KITS MACHINE GUN KITS SEND $1 FOR ALLAJ3 COMPLETE CATALOG DEPT MA 181 PAWNEE ST SAN MARCOS Ca 92069