w design can used stepping stone all-out Precision Aero batics flying However advanced funflying isyourthing its excellent Recom mended engine size 54-inspan ship 3540 cu U Roger S Greene MY ARTICLE model named Aetos Greek word meaning eagle Fox 25-size engine printed March Top Picture plane full built-up fuselage certaInly would considered 1979 Model Aviation plane full-blown Precision Aerobatics design profile fuselage builds quickly can have time perfectIng maneuversor just fun flying Above Roger Greene L intended gap-filler before going son DavId show off featured plane earlier Aetos latter now age five larger size plane 70 Model Aviation have now taken original propor tions enlarged wingspan 54 fit 35- 40-size engine call new plane Megas Aetos meaning large eagle plane novice get feel large plane too much expense wing construction straightfor ward C-tube web make D-tube What like about fuselage construction tail builds up light allowing larger stabilizer elevator smoother control through maneuver stabilizer elevator could also built-up would save about ounce overall weightvery important rear end Megas Aetos has torsion bar landing gear setup bounce-free takeoffs landings controls have one-to-one ratio same used flaps elevator top Stunt pilots wing has 551 aspect ratio average 20% flaps great turning ability fuel tank uniflow wedge type containing 375 fluid ounces slip stream vent goes directly back tank next engine pickup tube wedge Both soldered place overflow vent capped before starting engine Sullivan 4-oz tank could used instead building own Construction After studying plans carefully make patterns out posterboard Use carbon paper tracing parts cut out pattern Fine-sand pattern edges can make smooth line felt-tip ball-point pen wood Buy wood careful ly get proper weight straight ness text arranged suggested building sequence Fuselage always assemble fuselage first can drying work being done rest plane Begin cutting out / balsa sheet sides plywood doublers Remember put engine cutout outboard side A-in balsa core can made out two layers / sheet Butt-glue balsa plywood fuse lage sides together Cut plywood doubler first doubler meets balsa side use plywood edge guide cut balsa side perfect joint Remember keep top edge fuselage straight alignment Glue joint together using masking tape both sides pull joint tight Cut engine beams size help construction fuselage suggest making vise out plywood eight 8-32 x 2-in screws washers wing nuts Drill eight holes three top three bottom middle airfoil Fox 35 bottom backplate will stick through fuselage 3A6-in dia about A-in away fuselage used Titebond glue fuselage Remove tape fuselage sides just before glulng clamping vise Slip fuselage tighten Set aside dry about 24-48 hours fuselage drying cut out wing parts Wing Cut ribs sheet balsa indicated thickness plan Punch holes lead-outs using metal lipstick top filed sharp Drill solder piece A-in music wire about halfway up punch grip help twist hole top will enable push out wood circles homemade April1985 71 Left If tank centerline isnt engine intake centerline wont able get engine run consistently air short length music wire helps placing tank correctly Right lipstick cap 1/16-in music wire through foreground just left center sharpened become handy punch making lead-out holes wing ribs such Device simple effective Above havent tried adjustable lead-out guide before dont know what youre missing can really finetune amount line pull easy make Left Large tall surfaces high aspect ratio wing 55 1 show up Authors model covered medium-grade siikspan painted over Sig Diana Cream trimmed Chocolate Brown Compiete finishing steps text photos show exterior control linkages flaps elevators Notice overlap pushrod outer holes control horns used minimized control sensitivIty Yet ship will turn sharply full control given little hook behind tall wheel stooge releasefor times want fly cant find anyone around lend helping hand Left authors model powered venerable Fox 35behind homemade fuel tank 4-oz Sullivan tank could used Instead shape mounting landing gear provide excellent shock-absorbIng qusilties Right Roger David get ready fly punch avoid cracking ribs punch holes before cut ribs out balsa sheet fine-sand airfoil outline Place sheet wax paper over wing plan splice trailing edge sheeting over plan Glue ribs place trailing edge sheeting Dont forget glue two / sq bellcrank sup ports same time center five ribs glued place Also glue bellcrank platform Glue top / sq spar top trailing edge planking time well wing drying start work solid surfaces flaps rudder stabilizer elevator stabilizer elevator cut /6 sheet balsa cant find size will like use 5/4 sheet because its little stronger length Draw line edge side surface center Use line guide sand hinging Sand leading edge flaps elevator wedge 300 leg Shape airfoil per plan being careful make leading edge stabilizer blunt Use Sig wire-type control horn make own used three hinges per side flaps two per side elevator Glue control horns epoxy strength Epoxy hinges stabilizer elevator horn bearing stabilizer Cut sand flaps proper outline Use Sig offset horn Epoxy place Remember sand flap tips glued wing trailing edge However glue flaps flap tips wing just yet wing fuselage must glued first Wing again briefly Remove pins flip wing over line plan secure pins Glue bottom spar now top leading edge triangle Let dry thoroughly Fuselage should have time dry now day two least Bend tail wheel gear out /,-in music wire Cut out its bulkhead bind two wraps copper wire around notches glue fuselage proper angle Also glue both top bottom A-in balsa blocks fuselage pin let dry Rudder Cut A-in sheet 72 Model Aviation about plane looks pilot its flight trim bottom under rudder provide visual reference horizontal flight Photos author Full-Size Plans Available. See Page 180 grain direction shown plan Sand airfoil sure airfoil curve inboard side Wing Connect lead-out wires belicrank thread through inboard-side ribs left side counter clockwise flying right side clockwise flyingas viewed rear Bend pushrod %2-in music wire solder washer top bot tom sandwiching bellcrank wrap two copper wire around solder goes help make good joint Have pushrod come down top high enough cranks arms hit Secure bellcrank wrap copper wire threads above nut before soldering Add wing tips also adjust able lead-out guide Dont afraid use adjustable guide havent before simple make uses plywood slide housing / plywood slider plus 4-40 x A-in screw T-nut Add tip ribs next weight outboard wing tip latter use 9 10 A-in rosin core solder makes about 3/4 oz Bend lead-out wires bellcrank neutral position sure bend ends same length neutral position can found pushrods ate soldered leading edge planking next Glue first leading edge triangle use 36-in wood have splice center rib Make sure planking edge straight buy it will building-in warp glue dry moisten outside planking bend spar pin care fully sponge should used paint water finish gluing planking just yet Wait till water has evaporated wood dry hair dryer heat gun can used speed process reason go through step leading edge planking will fighting rest structure get straight Its just going stay have formed Unpin planking use glue gun run bead glue over rib spar Pin align keep out warps Landing gear Bend out A-in music wire bolt fuselage using two Sig nylon gear clips two tin straps bent around A-in music wire cant find gear clips make out strips cut tin can forward bend landing gear helps absorb first contact ground make landings smoother Youll want try transition glide ground roll continuous motion Wing last time leading edge 7T - fr-I-4 1 Fi II II II Ii Iftj 7L U U3IIJ u T -iS Ii iLl K / I4 Kit 2 iiv V1 4 gluing planking dry web can made out scrap A6 balsa sheet grain vertical glue web between spars will add strength help keep wing alignment Make marks leading edge trailing edge planking side center rib will thickness fuselage 3/4 will help locate place fuselage will go center planking put Next plank center ribs /~ sheet fuselage wing glue dry time has come put units together Slip flaps through wing Continued page 168 April 1985 73 CL Racing/Ballard Continued page 165 Line entanglements have received several letters concerning problems volved pilots entering exiting pilot circleand especially during takeoffs am enclosing picture Vic Garner California entering pilot cir cle angle avoid collision line entanglement other pilot already walking center circle area imperative pilot has center circle position keep hand high avoid hanging lines pilot enter ing circle especially pilot enters tall stature several cases have seen pilots enter circle directly after taking off either have collision other pilot line entanglement causes aircraft crash During recent contest St Louis observed Sig Racing teams pit man left leg extended back prevent aircrafts wing hitting takeoff occasions have seen pit men kneel down both knees air craft released wing brushes pitmans pant leg knee causing air craft torque inside circle chip ends off prop especially true longer-winged Rat Racers Scale Racers have 22to 24-inch wing Also pitting left leg extended allows pitman follow through hand holding aircraft guide smoothly off surface about 21-size Rat racer have several calls individuals building smaller 21-size Rats couple modelers Texas Cali fornia Chicago building try out spring will keep readers informed perform ance handling characteristics As always comments solicited appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 Megas Aetos/Greene Continued page 73 slot first wing Use triangle get wing fuselage square another angle should 900 wing leading edge Also fuselage should 900 workbench elevate wing tips equal distance surface Have fuselage just touching workbench used epoxy glue wing fuselage dry drill 1A-in hole fuselage bottom through wing near leading edge shown plan glue dowel will help keep together through years Flaps Epoxy three hinges inboard flap first followed three hinges outboard wing trailing edge dry epoxy other end hinges flap wing found best start center work tip second-stage hinge epoxy ing time remembering push hinge far will go Leave very small gap smaller better Next epoxy horn bearing trail ing edge wing Tail surfaces Epoxy stabilizer elevator fuselage being careful have unit aligned perfectly Eyeball stabilizer front having bottom stabilizer appear just sit top wing Also measure distance hinge stabilizer tip straight forward hinge flap should same side plane will yaw time control given Get alignment perfect before epoxy dries Reinforce stabilizer mounting /4-in triangle scrap under side fuselage Glue rudder place includ ing lower portion lower portion glves straight line reference during maneuvers Controls start hookup bellcrank stabilizer neutral pushrod stabilizer bellcrank will overlap two inches Wrap overlap copper wirenot wrap small two three wraps spaced about / apart solder small wraps will stronger long Next solder flap pushrod main control surfaces connect ing same way use one-to-one hookup con trol surfaces airplane responds very quickly pushrods should go holes farthest control sur face like use hole closest pivot point bellcrank setup makes control response very slow However choice yours Fuel tank like build own ever 3/2- 4-oz Sullivan slant tank similar will work just fine Whatever tank choose make sure center tank center engine look outboard tip good way check take glow plug out place piece l/in music wire across cooling fins toward leading edge wing over tank tank pickup should centerline tank shown plan Use 4 x 10-in tin stock 1A-in brass tubing Use rosin-core solder fuselage vise can help bending tank used light-duty soldering gun heavy-duty should better job 168 Model Aviation Power Soar New Heights S LT-50 GEAR MOTOR Leisures Gear Drive conversion 31 powerful LT-50 develops up 2 lbs static trhrust Gear Drive also features ball bearing Delrin/brass gearing glass loaded polycarbonate housing Send self-addressed stamped envelope catalog ap plication notes Leisure 11 DeerspringllrvinelCA 92714 MOD-LERM AFFORDABLE MODELING ACCESSORIES SOCKET HEAD SCREWS W/WASHERS No 028 90 No 038 Zi44~/4 1P1 $100 No 0786 4/42 Pk$110 No 088 532 4 12 MC $1 20 No 118 ~i*-* 2t' $155 BLIND NUTS AND LOCK NUTS No 128440 Blind12 Pk$ 95 No 148 6-3~ba jt2 P $1 10 No 158 8rBlI~ 12pk $1 25 No 168 4 LoCk/ 2k $ 45 No 188 Lock/ /12 $ 50 No 1988Locj ji2P$ 55 NYLI4WING OLTS No 208832xtl2Pk$ 80 No 218 $41f l2Pk $ 90 No 23B -3t1--lf4 1-2tk $110 No 248 10-32 x 11/2 12 Ph $135 No 268 1/4-2k x11/2 12 Ph $2 10 No 288 1/4-2xQ V 2Pk $250 No 3081r4-20x3l2Pk$298 PR0P9PR 45A Sturdy letM iiA4iatic finger guard Protects against Cuts bruises white starting engine Package contains 1 smalt 1 medium 1 laige Si 50 SILICONE FUEL TUBING 60A 3/32 Small Medium 3 Ft $1 75 61A 1/8MediumtoLarge 3Ft$189 MODEL KLEEN 75A 2 ounce package makes tutl gallon Removes gtow gas fuel residue Mixes tap water Spray wipe off soft cloth paper towel$1 98 2 00 less Si 50 shipping ver S12 00 free shipping residents add 5% sales tax D s cash add Si 25 MODLER POBOX 70 MCKEE KY 40447 Wrfe coniplefe price list Dealer inquiries welconie 170 Model Aviation Finish Fine-sand model 400-grit sandpaper block about 2% x 4 Using such block will pro duce surface Brush three coats clear dope sand 400-grit sandpaper until smooth Cover wings medium-grade silkspan Brush another three coats clear over silkspan lightly sand 400-grit wet-or-dry sandpaper Just smooth rough spots Brush coat sanding sealer over entire plane sealer can made putting about eight tablespoons talcum powder per quart clearand some thinner keep getting too thick using light base color some could added sealer well will help base coat cover faster Sand sealer 400-grit paper wood grain still can seen another coat sealer should cover wood grain covered apply coat clear over sealer Now its time color base color used Sig Diana Cream Chocolate Brown used trim letters numbers color dry dilute some clear least 50% thinner 1-in wider brush single-stroke coat brush place once color will come up Its good wait 24 48 hours between coats color clear paint similar amount time before fly Megas Aetos thinners paint can dry Flying model flies smoothly can AMA Stunt pattern should provide learner good base get aerobatics control surfaces move maximum 30 degress either side neutral possibility over-control kept minimum very stable because stabilizer area much larger elevator area ever Megas Aetos will turn very sharply given full control am sure Megas Aetos will give much enjoyment has given Mine weighs 42 oz Yours could made weigh less using iron-on covering lighter wood Happy flying FF Duration/Mouser Continued page 75 clarified prohibit such models Walt Erbach pushed record up beyond what Aeronuts done Roy White came off couple nice records too couple years ago David Erbach ran international postal contest Ornithopters everyones surprise Japanese came through take home marbles lad Australia far behind US left dust Somewhere middle little over year ago Pat Deshaye created OMS out thin air established annual dues zero started publication Flapper Facts out woodwork came Al Rohrbaughhe has pecking away Ornithopters some timewho pushed high-ceiling record over 10 minutes OMSs members feller name Paul MacCready awarded contract Smithsonian Institution study feasibility building electric-powered radio-controlled Orni thoptera replica prehistoric flying beastto fly up down Mall figured indeed feasible now process proving As membership OMS increased became Deshaye could handle alone out own pocket organization got organized Officers . have officers President Frank Kieser vice-president Walt Erbach secretary treasurer Shirley Roy White Pat Deshaye remains editor Flapper Facts Gos. have goals Advancement communication technology encouragement competi tion fun flying service focal point restructuring competition rules documentation Ornithopter history establishment recognized AMA special-interest group Dues. have dues Any organiza tion must have dues order survive $7 coin realm per annum includes subscription Flapper Facts entry fee 1985 postal contest Send Shirley White Rt 1 Box 241 Catawissa MO 63015 Members e few less lot about Fiftieth anniversary Chicago Aeronuts banquet interested parties may tend April 20 1985 Midway Motor Lodge Elk Grove Village IL Cost $20 full refunds up April 13 Choice prime rib broiled sole Rooms available Lodge has limo service OHare doubles about $50 per night Send reservation request check request details George Gordey 2901 Prairie Brookfield IL 60513 Come see guys read about magazines Zaic Yearbooks Thirties live event should model aviation reunion century especially smart Aeronuts now living California attend Right Carl Pete Ed Walt Teen t-of-print NFFS Sympo reports Ac cording recent survey three kinds people entire world namely would like buy out-of-print Sympos cant find seller b have extra out-ofprint Sympos cant find buyer c others Well now sneaky scheme abrewing whereby can get together b vice versa ones c will just have struggle Want REV-VP Ptps Average laveatorg 4900 Prep! Over 50 Sizes beats New About Custeni Tuned Engines Combat Raciag Free FlightS Sped Compatitioa Accessories S Parts Pyle Raciag Pattera S Sport PA S V/c, liege laveatery! Specialists Custe Ce 3D S Reed Eg/us Std S I/C Custom Parts Ce Eaglues Complete laveatery OF ladividual Stock Parts Curreat KD S Medallie Eg/us Muap New Parts Discoatiaued Ce Eagiacs Rep/ku Orwick 23 29 0 Engines 1g/tie Eagiac Accessories Vise S MasterCurd Welcome Petalled Irochure Sead 75E Nustom KraFtsmaash/p PD 203 Laguiia Nulls CA 32654 Ph 7141395162 FOX FUEL LINE IS ABOUT THE MOST EXPENSIVE YOU CAN BUY SO WHY DOES IT SELL BECAUSE IT IS THE BEST OF COURSE MATERIAL cone fuel line notoriously susceptible pin holes tears Fox special formula comparison surgical tubing elastic can buy DIMENSIONS ugh lengthy testing have determined wall ID ratio resists collapsing pinching kinking best fuel line specially made us specs Take close look will see best SURGICAL Snail Pk $ 800 Spool Med Pk $1000 Spool Large Pk $1200 spool TUFF LINE Small Pk $1800 Spool Med $100 Pk $2600 Spool Large $140 Pk $3500 Spool Visa MasterCard Accepted FOX MFG Co 5305 TOWSON AVE FORT SMITH AR 72901 501 646-1656
Edition: Model Aviation - 1985/04
Page Numbers: 70, 71, 72, 73, 168, 170
w design can used stepping stone all-out Precision Aero batics flying However advanced funflying isyourthing its excellent Recom mended engine size 54-inspan ship 3540 cu U Roger S Greene MY ARTICLE model named Aetos Greek word meaning eagle Fox 25-size engine printed March Top Picture plane full built-up fuselage certaInly would considered 1979 Model Aviation plane full-blown Precision Aerobatics design profile fuselage builds quickly can have time perfectIng maneuversor just fun flying Above Roger Greene L intended gap-filler before going son DavId show off featured plane earlier Aetos latter now age five larger size plane 70 Model Aviation have now taken original propor tions enlarged wingspan 54 fit 35- 40-size engine call new plane Megas Aetos meaning large eagle plane novice get feel large plane too much expense wing construction straightfor ward C-tube web make D-tube What like about fuselage construction tail builds up light allowing larger stabilizer elevator smoother control through maneuver stabilizer elevator could also built-up would save about ounce overall weightvery important rear end Megas Aetos has torsion bar landing gear setup bounce-free takeoffs landings controls have one-to-one ratio same used flaps elevator top Stunt pilots wing has 551 aspect ratio average 20% flaps great turning ability fuel tank uniflow wedge type containing 375 fluid ounces slip stream vent goes directly back tank next engine pickup tube wedge Both soldered place overflow vent capped before starting engine Sullivan 4-oz tank could used instead building own Construction After studying plans carefully make patterns out posterboard Use carbon paper tracing parts cut out pattern Fine-sand pattern edges can make smooth line felt-tip ball-point pen wood Buy wood careful ly get proper weight straight ness text arranged suggested building sequence Fuselage always assemble fuselage first can drying work being done rest plane Begin cutting out / balsa sheet sides plywood doublers Remember put engine cutout outboard side A-in balsa core can made out two layers / sheet Butt-glue balsa plywood fuse lage sides together Cut plywood doubler first doubler meets balsa side use plywood edge guide cut balsa side perfect joint Remember keep top edge fuselage straight alignment Glue joint together using masking tape both sides pull joint tight Cut engine beams size help construction fuselage suggest making vise out plywood eight 8-32 x 2-in screws washers wing nuts Drill eight holes three top three bottom middle airfoil Fox 35 bottom backplate will stick through fuselage 3A6-in dia about A-in away fuselage used Titebond glue fuselage Remove tape fuselage sides just before glulng clamping vise Slip fuselage tighten Set aside dry about 24-48 hours fuselage drying cut out wing parts Wing Cut ribs sheet balsa indicated thickness plan Punch holes lead-outs using metal lipstick top filed sharp Drill solder piece A-in music wire about halfway up punch grip help twist hole top will enable push out wood circles homemade April1985 71 Left If tank centerline isnt engine intake centerline wont able get engine run consistently air short length music wire helps placing tank correctly Right lipstick cap 1/16-in music wire through foreground just left center sharpened become handy punch making lead-out holes wing ribs such Device simple effective Above havent tried adjustable lead-out guide before dont know what youre missing can really finetune amount line pull easy make Left Large tall surfaces high aspect ratio wing 55 1 show up Authors model covered medium-grade siikspan painted over Sig Diana Cream trimmed Chocolate Brown Compiete finishing steps text photos show exterior control linkages flaps elevators Notice overlap pushrod outer holes control horns used minimized control sensitivIty Yet ship will turn sharply full control given little hook behind tall wheel stooge releasefor times want fly cant find anyone around lend helping hand Left authors model powered venerable Fox 35behind homemade fuel tank 4-oz Sullivan tank could used Instead shape mounting landing gear provide excellent shock-absorbIng qusilties Right Roger David get ready fly punch avoid cracking ribs punch holes before cut ribs out balsa sheet fine-sand airfoil outline Place sheet wax paper over wing plan splice trailing edge sheeting over plan Glue ribs place trailing edge sheeting Dont forget glue two / sq bellcrank sup ports same time center five ribs glued place Also glue bellcrank platform Glue top / sq spar top trailing edge planking time well wing drying start work solid surfaces flaps rudder stabilizer elevator stabilizer elevator cut /6 sheet balsa cant find size will like use 5/4 sheet because its little stronger length Draw line edge side surface center Use line guide sand hinging Sand leading edge flaps elevator wedge 300 leg Shape airfoil per plan being careful make leading edge stabilizer blunt Use Sig wire-type control horn make own used three hinges per side flaps two per side elevator Glue control horns epoxy strength Epoxy hinges stabilizer elevator horn bearing stabilizer Cut sand flaps proper outline Use Sig offset horn Epoxy place Remember sand flap tips glued wing trailing edge However glue flaps flap tips wing just yet wing fuselage must glued first Wing again briefly Remove pins flip wing over line plan secure pins Glue bottom spar now top leading edge triangle Let dry thoroughly Fuselage should have time dry now day two least Bend tail wheel gear out /,-in music wire Cut out its bulkhead bind two wraps copper wire around notches glue fuselage proper angle Also glue both top bottom A-in balsa blocks fuselage pin let dry Rudder Cut A-in sheet 72 Model Aviation about plane looks pilot its flight trim bottom under rudder provide visual reference horizontal flight Photos author Full-Size Plans Available. See Page 180 grain direction shown plan Sand airfoil sure airfoil curve inboard side Wing Connect lead-out wires belicrank thread through inboard-side ribs left side counter clockwise flying right side clockwise flyingas viewed rear Bend pushrod %2-in music wire solder washer top bot tom sandwiching bellcrank wrap two copper wire around solder goes help make good joint Have pushrod come down top high enough cranks arms hit Secure bellcrank wrap copper wire threads above nut before soldering Add wing tips also adjust able lead-out guide Dont afraid use adjustable guide havent before simple make uses plywood slide housing / plywood slider plus 4-40 x A-in screw T-nut Add tip ribs next weight outboard wing tip latter use 9 10 A-in rosin core solder makes about 3/4 oz Bend lead-out wires bellcrank neutral position sure bend ends same length neutral position can found pushrods ate soldered leading edge planking next Glue first leading edge triangle use 36-in wood have splice center rib Make sure planking edge straight buy it will building-in warp glue dry moisten outside planking bend spar pin care fully sponge should used paint water finish gluing planking just yet Wait till water has evaporated wood dry hair dryer heat gun can used speed process reason go through step leading edge planking will fighting rest structure get straight Its just going stay have formed Unpin planking use glue gun run bead glue over rib spar Pin align keep out warps Landing gear Bend out A-in music wire bolt fuselage using two Sig nylon gear clips two tin straps bent around A-in music wire cant find gear clips make out strips cut tin can forward bend landing gear helps absorb first contact ground make landings smoother Youll want try transition glide ground roll continuous motion Wing last time leading edge 7T - fr-I-4 1 Fi II II II Ii Iftj 7L U U3IIJ u T -iS Ii iLl K / I4 Kit 2 iiv V1 4 gluing planking dry web can made out scrap A6 balsa sheet grain vertical glue web between spars will add strength help keep wing alignment Make marks leading edge trailing edge planking side center rib will thickness fuselage 3/4 will help locate place fuselage will go center planking put Next plank center ribs /~ sheet fuselage wing glue dry time has come put units together Slip flaps through wing Continued page 168 April 1985 73 CL Racing/Ballard Continued page 165 Line entanglements have received several letters concerning problems volved pilots entering exiting pilot circleand especially during takeoffs am enclosing picture Vic Garner California entering pilot cir cle angle avoid collision line entanglement other pilot already walking center circle area imperative pilot has center circle position keep hand high avoid hanging lines pilot enter ing circle especially pilot enters tall stature several cases have seen pilots enter circle directly after taking off either have collision other pilot line entanglement causes aircraft crash During recent contest St Louis observed Sig Racing teams pit man left leg extended back prevent aircrafts wing hitting takeoff occasions have seen pit men kneel down both knees air craft released wing brushes pitmans pant leg knee causing air craft torque inside circle chip ends off prop especially true longer-winged Rat Racers Scale Racers have 22to 24-inch wing Also pitting left leg extended allows pitman follow through hand holding aircraft guide smoothly off surface about 21-size Rat racer have several calls individuals building smaller 21-size Rats couple modelers Texas Cali fornia Chicago building try out spring will keep readers informed perform ance handling characteristics As always comments solicited appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 Megas Aetos/Greene Continued page 73 slot first wing Use triangle get wing fuselage square another angle should 900 wing leading edge Also fuselage should 900 workbench elevate wing tips equal distance surface Have fuselage just touching workbench used epoxy glue wing fuselage dry drill 1A-in hole fuselage bottom through wing near leading edge shown plan glue dowel will help keep together through years Flaps Epoxy three hinges inboard flap first followed three hinges outboard wing trailing edge dry epoxy other end hinges flap wing found best start center work tip second-stage hinge epoxy ing time remembering push hinge far will go Leave very small gap smaller better Next epoxy horn bearing trail ing edge wing Tail surfaces Epoxy stabilizer elevator fuselage being careful have unit aligned perfectly Eyeball stabilizer front having bottom stabilizer appear just sit top wing Also measure distance hinge stabilizer tip straight forward hinge flap should same side plane will yaw time control given Get alignment perfect before epoxy dries Reinforce stabilizer mounting /4-in triangle scrap under side fuselage Glue rudder place includ ing lower portion lower portion glves straight line reference during maneuvers Controls start hookup bellcrank stabilizer neutral pushrod stabilizer bellcrank will overlap two inches Wrap overlap copper wirenot wrap small two three wraps spaced about / apart solder small wraps will stronger long Next solder flap pushrod main control surfaces connect ing same way use one-to-one hookup con trol surfaces airplane responds very quickly pushrods should go holes farthest control sur face like use hole closest pivot point bellcrank setup makes control response very slow However choice yours Fuel tank like build own ever 3/2- 4-oz Sullivan slant tank similar will work just fine Whatever tank choose make sure center tank center engine look outboard tip good way check take glow plug out place piece l/in music wire across cooling fins toward leading edge wing over tank tank pickup should centerline tank shown plan Use 4 x 10-in tin stock 1A-in brass tubing Use rosin-core solder fuselage vise can help bending tank used light-duty soldering gun heavy-duty should better job 168 Model Aviation Power Soar New Heights S LT-50 GEAR MOTOR Leisures Gear Drive conversion 31 powerful LT-50 develops up 2 lbs static trhrust Gear Drive also features ball bearing Delrin/brass gearing glass loaded polycarbonate housing Send self-addressed stamped envelope catalog ap plication notes Leisure 11 DeerspringllrvinelCA 92714 MOD-LERM AFFORDABLE MODELING ACCESSORIES SOCKET HEAD SCREWS W/WASHERS No 028 90 No 038 Zi44~/4 1P1 $100 No 0786 4/42 Pk$110 No 088 532 4 12 MC $1 20 No 118 ~i*-* 2t' $155 BLIND NUTS AND LOCK NUTS No 128440 Blind12 Pk$ 95 No 148 6-3~ba jt2 P $1 10 No 158 8rBlI~ 12pk $1 25 No 168 4 LoCk/ 2k $ 45 No 188 Lock/ /12 $ 50 No 1988Locj ji2P$ 55 NYLI4WING OLTS No 208832xtl2Pk$ 80 No 218 $41f l2Pk $ 90 No 23B -3t1--lf4 1-2tk $110 No 248 10-32 x 11/2 12 Ph $135 No 268 1/4-2k x11/2 12 Ph $2 10 No 288 1/4-2xQ V 2Pk $250 No 3081r4-20x3l2Pk$298 PR0P9PR 45A Sturdy letM iiA4iatic finger guard Protects against Cuts bruises white starting engine Package contains 1 smalt 1 medium 1 laige Si 50 SILICONE FUEL TUBING 60A 3/32 Small Medium 3 Ft $1 75 61A 1/8MediumtoLarge 3Ft$189 MODEL KLEEN 75A 2 ounce package makes tutl gallon Removes gtow gas fuel residue Mixes tap water Spray wipe off soft cloth paper towel$1 98 2 00 less Si 50 shipping ver S12 00 free shipping residents add 5% sales tax D s cash add Si 25 MODLER POBOX 70 MCKEE KY 40447 Wrfe coniplefe price list Dealer inquiries welconie 170 Model Aviation Finish Fine-sand model 400-grit sandpaper block about 2% x 4 Using such block will pro duce surface Brush three coats clear dope sand 400-grit sandpaper until smooth Cover wings medium-grade silkspan Brush another three coats clear over silkspan lightly sand 400-grit wet-or-dry sandpaper Just smooth rough spots Brush coat sanding sealer over entire plane sealer can made putting about eight tablespoons talcum powder per quart clearand some thinner keep getting too thick using light base color some could added sealer well will help base coat cover faster Sand sealer 400-grit paper wood grain still can seen another coat sealer should cover wood grain covered apply coat clear over sealer Now its time color base color used Sig Diana Cream Chocolate Brown used trim letters numbers color dry dilute some clear least 50% thinner 1-in wider brush single-stroke coat brush place once color will come up Its good wait 24 48 hours between coats color clear paint similar amount time before fly Megas Aetos thinners paint can dry Flying model flies smoothly can AMA Stunt pattern should provide learner good base get aerobatics control surfaces move maximum 30 degress either side neutral possibility over-control kept minimum very stable because stabilizer area much larger elevator area ever Megas Aetos will turn very sharply given full control am sure Megas Aetos will give much enjoyment has given Mine weighs 42 oz Yours could made weigh less using iron-on covering lighter wood Happy flying FF Duration/Mouser Continued page 75 clarified prohibit such models Walt Erbach pushed record up beyond what Aeronuts done Roy White came off couple nice records too couple years ago David Erbach ran international postal contest Ornithopters everyones surprise Japanese came through take home marbles lad Australia far behind US left dust Somewhere middle little over year ago Pat Deshaye created OMS out thin air established annual dues zero started publication Flapper Facts out woodwork came Al Rohrbaughhe has pecking away Ornithopters some timewho pushed high-ceiling record over 10 minutes OMSs members feller name Paul MacCready awarded contract Smithsonian Institution study feasibility building electric-powered radio-controlled Orni thoptera replica prehistoric flying beastto fly up down Mall figured indeed feasible now process proving As membership OMS increased became Deshaye could handle alone out own pocket organization got organized Officers . have officers President Frank Kieser vice-president Walt Erbach secretary treasurer Shirley Roy White Pat Deshaye remains editor Flapper Facts Gos. have goals Advancement communication technology encouragement competi tion fun flying service focal point restructuring competition rules documentation Ornithopter history establishment recognized AMA special-interest group Dues. have dues Any organiza tion must have dues order survive $7 coin realm per annum includes subscription Flapper Facts entry fee 1985 postal contest Send Shirley White Rt 1 Box 241 Catawissa MO 63015 Members e few less lot about Fiftieth anniversary Chicago Aeronuts banquet interested parties may tend April 20 1985 Midway Motor Lodge Elk Grove Village IL Cost $20 full refunds up April 13 Choice prime rib broiled sole Rooms available Lodge has limo service OHare doubles about $50 per night Send reservation request check request details George Gordey 2901 Prairie Brookfield IL 60513 Come see guys read about magazines Zaic Yearbooks Thirties live event should model aviation reunion century especially smart Aeronuts now living California attend Right Carl Pete Ed Walt Teen t-of-print NFFS Sympo reports Ac cording recent survey three kinds people entire world namely would like buy out-of-print Sympos cant find seller b have extra out-ofprint Sympos cant find buyer c others Well now sneaky scheme abrewing whereby can get together b vice versa ones c will just have struggle Want REV-VP Ptps Average laveatorg 4900 Prep! Over 50 Sizes beats New About Custeni Tuned Engines Combat Raciag Free FlightS Sped Compatitioa Accessories S Parts Pyle Raciag Pattera S Sport PA S V/c, liege laveatery! Specialists Custe Ce 3D S Reed Eg/us Std S I/C Custom Parts Ce Eaglues Complete laveatery OF ladividual Stock Parts Curreat KD S Medallie Eg/us Muap New Parts Discoatiaued Ce Eagiacs Rep/ku Orwick 23 29 0 Engines 1g/tie Eagiac Accessories Vise S MasterCurd Welcome Petalled Irochure Sead 75E Nustom KraFtsmaash/p PD 203 Laguiia Nulls CA 32654 Ph 7141395162 FOX FUEL LINE IS ABOUT THE MOST EXPENSIVE YOU CAN BUY SO WHY DOES IT SELL BECAUSE IT IS THE BEST OF COURSE MATERIAL cone fuel line notoriously susceptible pin holes tears Fox special formula comparison surgical tubing elastic can buy DIMENSIONS ugh lengthy testing have determined wall ID ratio resists collapsing pinching kinking best fuel line specially made us specs Take close look will see best SURGICAL Snail Pk $ 800 Spool Med Pk $1000 Spool Large Pk $1200 spool TUFF LINE Small Pk $1800 Spool Med $100 Pk $2600 Spool Large $140 Pk $3500 Spool Visa MasterCard Accepted FOX MFG Co 5305 TOWSON AVE FORT SMITH AR 72901 501 646-1656
Edition: Model Aviation - 1985/04
Page Numbers: 70, 71, 72, 73, 168, 170
w design can used stepping stone all-out Precision Aero batics flying However advanced funflying isyourthing its excellent Recom mended engine size 54-inspan ship 3540 cu U Roger S Greene MY ARTICLE model named Aetos Greek word meaning eagle Fox 25-size engine printed March Top Picture plane full built-up fuselage certaInly would considered 1979 Model Aviation plane full-blown Precision Aerobatics design profile fuselage builds quickly can have time perfectIng maneuversor just fun flying Above Roger Greene L intended gap-filler before going son DavId show off featured plane earlier Aetos latter now age five larger size plane 70 Model Aviation have now taken original propor tions enlarged wingspan 54 fit 35- 40-size engine call new plane Megas Aetos meaning large eagle plane novice get feel large plane too much expense wing construction straightfor ward C-tube web make D-tube What like about fuselage construction tail builds up light allowing larger stabilizer elevator smoother control through maneuver stabilizer elevator could also built-up would save about ounce overall weightvery important rear end Megas Aetos has torsion bar landing gear setup bounce-free takeoffs landings controls have one-to-one ratio same used flaps elevator top Stunt pilots wing has 551 aspect ratio average 20% flaps great turning ability fuel tank uniflow wedge type containing 375 fluid ounces slip stream vent goes directly back tank next engine pickup tube wedge Both soldered place overflow vent capped before starting engine Sullivan 4-oz tank could used instead building own Construction After studying plans carefully make patterns out posterboard Use carbon paper tracing parts cut out pattern Fine-sand pattern edges can make smooth line felt-tip ball-point pen wood Buy wood careful ly get proper weight straight ness text arranged suggested building sequence Fuselage always assemble fuselage first can drying work being done rest plane Begin cutting out / balsa sheet sides plywood doublers Remember put engine cutout outboard side A-in balsa core can made out two layers / sheet Butt-glue balsa plywood fuse lage sides together Cut plywood doubler first doubler meets balsa side use plywood edge guide cut balsa side perfect joint Remember keep top edge fuselage straight alignment Glue joint together using masking tape both sides pull joint tight Cut engine beams size help construction fuselage suggest making vise out plywood eight 8-32 x 2-in screws washers wing nuts Drill eight holes three top three bottom middle airfoil Fox 35 bottom backplate will stick through fuselage 3A6-in dia about A-in away fuselage used Titebond glue fuselage Remove tape fuselage sides just before glulng clamping vise Slip fuselage tighten Set aside dry about 24-48 hours fuselage drying cut out wing parts Wing Cut ribs sheet balsa indicated thickness plan Punch holes lead-outs using metal lipstick top filed sharp Drill solder piece A-in music wire about halfway up punch grip help twist hole top will enable push out wood circles homemade April1985 71 Left If tank centerline isnt engine intake centerline wont able get engine run consistently air short length music wire helps placing tank correctly Right lipstick cap 1/16-in music wire through foreground just left center sharpened become handy punch making lead-out holes wing ribs such Device simple effective Above havent tried adjustable lead-out guide before dont know what youre missing can really finetune amount line pull easy make Left Large tall surfaces high aspect ratio wing 55 1 show up Authors model covered medium-grade siikspan painted over Sig Diana Cream trimmed Chocolate Brown Compiete finishing steps text photos show exterior control linkages flaps elevators Notice overlap pushrod outer holes control horns used minimized control sensitivIty Yet ship will turn sharply full control given little hook behind tall wheel stooge releasefor times want fly cant find anyone around lend helping hand Left authors model powered venerable Fox 35behind homemade fuel tank 4-oz Sullivan tank could used Instead shape mounting landing gear provide excellent shock-absorbIng qusilties Right Roger David get ready fly punch avoid cracking ribs punch holes before cut ribs out balsa sheet fine-sand airfoil outline Place sheet wax paper over wing plan splice trailing edge sheeting over plan Glue ribs place trailing edge sheeting Dont forget glue two / sq bellcrank sup ports same time center five ribs glued place Also glue bellcrank platform Glue top / sq spar top trailing edge planking time well wing drying start work solid surfaces flaps rudder stabilizer elevator stabilizer elevator cut /6 sheet balsa cant find size will like use 5/4 sheet because its little stronger length Draw line edge side surface center Use line guide sand hinging Sand leading edge flaps elevator wedge 300 leg Shape airfoil per plan being careful make leading edge stabilizer blunt Use Sig wire-type control horn make own used three hinges per side flaps two per side elevator Glue control horns epoxy strength Epoxy hinges stabilizer elevator horn bearing stabilizer Cut sand flaps proper outline Use Sig offset horn Epoxy place Remember sand flap tips glued wing trailing edge However glue flaps flap tips wing just yet wing fuselage must glued first Wing again briefly Remove pins flip wing over line plan secure pins Glue bottom spar now top leading edge triangle Let dry thoroughly Fuselage should have time dry now day two least Bend tail wheel gear out /,-in music wire Cut out its bulkhead bind two wraps copper wire around notches glue fuselage proper angle Also glue both top bottom A-in balsa blocks fuselage pin let dry Rudder Cut A-in sheet 72 Model Aviation about plane looks pilot its flight trim bottom under rudder provide visual reference horizontal flight Photos author Full-Size Plans Available. See Page 180 grain direction shown plan Sand airfoil sure airfoil curve inboard side Wing Connect lead-out wires belicrank thread through inboard-side ribs left side counter clockwise flying right side clockwise flyingas viewed rear Bend pushrod %2-in music wire solder washer top bot tom sandwiching bellcrank wrap two copper wire around solder goes help make good joint Have pushrod come down top high enough cranks arms hit Secure bellcrank wrap copper wire threads above nut before soldering Add wing tips also adjust able lead-out guide Dont afraid use adjustable guide havent before simple make uses plywood slide housing / plywood slider plus 4-40 x A-in screw T-nut Add tip ribs next weight outboard wing tip latter use 9 10 A-in rosin core solder makes about 3/4 oz Bend lead-out wires bellcrank neutral position sure bend ends same length neutral position can found pushrods ate soldered leading edge planking next Glue first leading edge triangle use 36-in wood have splice center rib Make sure planking edge straight buy it will building-in warp glue dry moisten outside planking bend spar pin care fully sponge should used paint water finish gluing planking just yet Wait till water has evaporated wood dry hair dryer heat gun can used speed process reason go through step leading edge planking will fighting rest structure get straight Its just going stay have formed Unpin planking use glue gun run bead glue over rib spar Pin align keep out warps Landing gear Bend out A-in music wire bolt fuselage using two Sig nylon gear clips two tin straps bent around A-in music wire cant find gear clips make out strips cut tin can forward bend landing gear helps absorb first contact ground make landings smoother Youll want try transition glide ground roll continuous motion Wing last time leading edge 7T - fr-I-4 1 Fi II II II Ii Iftj 7L U U3IIJ u T -iS Ii iLl K / I4 Kit 2 iiv V1 4 gluing planking dry web can made out scrap A6 balsa sheet grain vertical glue web between spars will add strength help keep wing alignment Make marks leading edge trailing edge planking side center rib will thickness fuselage 3/4 will help locate place fuselage will go center planking put Next plank center ribs /~ sheet fuselage wing glue dry time has come put units together Slip flaps through wing Continued page 168 April 1985 73 CL Racing/Ballard Continued page 165 Line entanglements have received several letters concerning problems volved pilots entering exiting pilot circleand especially during takeoffs am enclosing picture Vic Garner California entering pilot cir cle angle avoid collision line entanglement other pilot already walking center circle area imperative pilot has center circle position keep hand high avoid hanging lines pilot enter ing circle especially pilot enters tall stature several cases have seen pilots enter circle directly after taking off either have collision other pilot line entanglement causes aircraft crash During recent contest St Louis observed Sig Racing teams pit man left leg extended back prevent aircrafts wing hitting takeoff occasions have seen pit men kneel down both knees air craft released wing brushes pitmans pant leg knee causing air craft torque inside circle chip ends off prop especially true longer-winged Rat Racers Scale Racers have 22to 24-inch wing Also pitting left leg extended allows pitman follow through hand holding aircraft guide smoothly off surface about 21-size Rat racer have several calls individuals building smaller 21-size Rats couple modelers Texas Cali fornia Chicago building try out spring will keep readers informed perform ance handling characteristics As always comments solicited appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 Megas Aetos/Greene Continued page 73 slot first wing Use triangle get wing fuselage square another angle should 900 wing leading edge Also fuselage should 900 workbench elevate wing tips equal distance surface Have fuselage just touching workbench used epoxy glue wing fuselage dry drill 1A-in hole fuselage bottom through wing near leading edge shown plan glue dowel will help keep together through years Flaps Epoxy three hinges inboard flap first followed three hinges outboard wing trailing edge dry epoxy other end hinges flap wing found best start center work tip second-stage hinge epoxy ing time remembering push hinge far will go Leave very small gap smaller better Next epoxy horn bearing trail ing edge wing Tail surfaces Epoxy stabilizer elevator fuselage being careful have unit aligned perfectly Eyeball stabilizer front having bottom stabilizer appear just sit top wing Also measure distance hinge stabilizer tip straight forward hinge flap should same side plane will yaw time control given Get alignment perfect before epoxy dries Reinforce stabilizer mounting /4-in triangle scrap under side fuselage Glue rudder place includ ing lower portion lower portion glves straight line reference during maneuvers Controls start hookup bellcrank stabilizer neutral pushrod stabilizer bellcrank will overlap two inches Wrap overlap copper wirenot wrap small two three wraps spaced about / apart solder small wraps will stronger long Next solder flap pushrod main control surfaces connect ing same way use one-to-one hookup con trol surfaces airplane responds very quickly pushrods should go holes farthest control sur face like use hole closest pivot point bellcrank setup makes control response very slow However choice yours Fuel tank like build own ever 3/2- 4-oz Sullivan slant tank similar will work just fine Whatever tank choose make sure center tank center engine look outboard tip good way check take glow plug out place piece l/in music wire across cooling fins toward leading edge wing over tank tank pickup should centerline tank shown plan Use 4 x 10-in tin stock 1A-in brass tubing Use rosin-core solder fuselage vise can help bending tank used light-duty soldering gun heavy-duty should better job 168 Model Aviation Power Soar New Heights S LT-50 GEAR MOTOR Leisures Gear Drive conversion 31 powerful LT-50 develops up 2 lbs static trhrust Gear Drive also features ball bearing Delrin/brass gearing glass loaded polycarbonate housing Send self-addressed stamped envelope catalog ap plication notes Leisure 11 DeerspringllrvinelCA 92714 MOD-LERM AFFORDABLE MODELING ACCESSORIES SOCKET HEAD SCREWS W/WASHERS No 028 90 No 038 Zi44~/4 1P1 $100 No 0786 4/42 Pk$110 No 088 532 4 12 MC $1 20 No 118 ~i*-* 2t' $155 BLIND NUTS AND LOCK NUTS No 128440 Blind12 Pk$ 95 No 148 6-3~ba jt2 P $1 10 No 158 8rBlI~ 12pk $1 25 No 168 4 LoCk/ 2k $ 45 No 188 Lock/ /12 $ 50 No 1988Locj ji2P$ 55 NYLI4WING OLTS No 208832xtl2Pk$ 80 No 218 $41f l2Pk $ 90 No 23B -3t1--lf4 1-2tk $110 No 248 10-32 x 11/2 12 Ph $135 No 268 1/4-2k x11/2 12 Ph $2 10 No 288 1/4-2xQ V 2Pk $250 No 3081r4-20x3l2Pk$298 PR0P9PR 45A Sturdy letM iiA4iatic finger guard Protects against Cuts bruises white starting engine Package contains 1 smalt 1 medium 1 laige Si 50 SILICONE FUEL TUBING 60A 3/32 Small Medium 3 Ft $1 75 61A 1/8MediumtoLarge 3Ft$189 MODEL KLEEN 75A 2 ounce package makes tutl gallon Removes gtow gas fuel residue Mixes tap water Spray wipe off soft cloth paper towel$1 98 2 00 less Si 50 shipping ver S12 00 free shipping residents add 5% sales tax D s cash add Si 25 MODLER POBOX 70 MCKEE KY 40447 Wrfe coniplefe price list Dealer inquiries welconie 170 Model Aviation Finish Fine-sand model 400-grit sandpaper block about 2% x 4 Using such block will pro duce surface Brush three coats clear dope sand 400-grit sandpaper until smooth Cover wings medium-grade silkspan Brush another three coats clear over silkspan lightly sand 400-grit wet-or-dry sandpaper Just smooth rough spots Brush coat sanding sealer over entire plane sealer can made putting about eight tablespoons talcum powder per quart clearand some thinner keep getting too thick using light base color some could added sealer well will help base coat cover faster Sand sealer 400-grit paper wood grain still can seen another coat sealer should cover wood grain covered apply coat clear over sealer Now its time color base color used Sig Diana Cream Chocolate Brown used trim letters numbers color dry dilute some clear least 50% thinner 1-in wider brush single-stroke coat brush place once color will come up Its good wait 24 48 hours between coats color clear paint similar amount time before fly Megas Aetos thinners paint can dry Flying model flies smoothly can AMA Stunt pattern should provide learner good base get aerobatics control surfaces move maximum 30 degress either side neutral possibility over-control kept minimum very stable because stabilizer area much larger elevator area ever Megas Aetos will turn very sharply given full control am sure Megas Aetos will give much enjoyment has given Mine weighs 42 oz Yours could made weigh less using iron-on covering lighter wood Happy flying FF Duration/Mouser Continued page 75 clarified prohibit such models Walt Erbach pushed record up beyond what Aeronuts done Roy White came off couple nice records too couple years ago David Erbach ran international postal contest Ornithopters everyones surprise Japanese came through take home marbles lad Australia far behind US left dust Somewhere middle little over year ago Pat Deshaye created OMS out thin air established annual dues zero started publication Flapper Facts out woodwork came Al Rohrbaughhe has pecking away Ornithopters some timewho pushed high-ceiling record over 10 minutes OMSs members feller name Paul MacCready awarded contract Smithsonian Institution study feasibility building electric-powered radio-controlled Orni thoptera replica prehistoric flying beastto fly up down Mall figured indeed feasible now process proving As membership OMS increased became Deshaye could handle alone out own pocket organization got organized Officers . have officers President Frank Kieser vice-president Walt Erbach secretary treasurer Shirley Roy White Pat Deshaye remains editor Flapper Facts Gos. have goals Advancement communication technology encouragement competi tion fun flying service focal point restructuring competition rules documentation Ornithopter history establishment recognized AMA special-interest group Dues. have dues Any organiza tion must have dues order survive $7 coin realm per annum includes subscription Flapper Facts entry fee 1985 postal contest Send Shirley White Rt 1 Box 241 Catawissa MO 63015 Members e few less lot about Fiftieth anniversary Chicago Aeronuts banquet interested parties may tend April 20 1985 Midway Motor Lodge Elk Grove Village IL Cost $20 full refunds up April 13 Choice prime rib broiled sole Rooms available Lodge has limo service OHare doubles about $50 per night Send reservation request check request details George Gordey 2901 Prairie Brookfield IL 60513 Come see guys read about magazines Zaic Yearbooks Thirties live event should model aviation reunion century especially smart Aeronuts now living California attend Right Carl Pete Ed Walt Teen t-of-print NFFS Sympo reports Ac cording recent survey three kinds people entire world namely would like buy out-of-print Sympos cant find seller b have extra out-ofprint Sympos cant find buyer c others Well now sneaky scheme abrewing whereby can get together b vice versa ones c will just have struggle Want REV-VP Ptps Average laveatorg 4900 Prep! Over 50 Sizes beats New About Custeni Tuned Engines Combat Raciag Free FlightS Sped Compatitioa Accessories S Parts Pyle Raciag Pattera S Sport PA S V/c, liege laveatery! Specialists Custe Ce 3D S Reed Eg/us Std S I/C Custom Parts Ce Eaglues Complete laveatery OF ladividual Stock Parts Curreat KD S Medallie Eg/us Muap New Parts Discoatiaued Ce Eagiacs Rep/ku Orwick 23 29 0 Engines 1g/tie Eagiac Accessories Vise S MasterCurd Welcome Petalled Irochure Sead 75E Nustom KraFtsmaash/p PD 203 Laguiia Nulls CA 32654 Ph 7141395162 FOX FUEL LINE IS ABOUT THE MOST EXPENSIVE YOU CAN BUY SO WHY DOES IT SELL BECAUSE IT IS THE BEST OF COURSE MATERIAL cone fuel line notoriously susceptible pin holes tears Fox special formula comparison surgical tubing elastic can buy DIMENSIONS ugh lengthy testing have determined wall ID ratio resists collapsing pinching kinking best fuel line specially made us specs Take close look will see best SURGICAL Snail Pk $ 800 Spool Med Pk $1000 Spool Large Pk $1200 spool TUFF LINE Small Pk $1800 Spool Med $100 Pk $2600 Spool Large $140 Pk $3500 Spool Visa MasterCard Accepted FOX MFG Co 5305 TOWSON AVE FORT SMITH AR 72901 501 646-1656
Edition: Model Aviation - 1985/04
Page Numbers: 70, 71, 72, 73, 168, 170
w design can used stepping stone all-out Precision Aero batics flying However advanced funflying isyourthing its excellent Recom mended engine size 54-inspan ship 3540 cu U Roger S Greene MY ARTICLE model named Aetos Greek word meaning eagle Fox 25-size engine printed March Top Picture plane full built-up fuselage certaInly would considered 1979 Model Aviation plane full-blown Precision Aerobatics design profile fuselage builds quickly can have time perfectIng maneuversor just fun flying Above Roger Greene L intended gap-filler before going son DavId show off featured plane earlier Aetos latter now age five larger size plane 70 Model Aviation have now taken original propor tions enlarged wingspan 54 fit 35- 40-size engine call new plane Megas Aetos meaning large eagle plane novice get feel large plane too much expense wing construction straightfor ward C-tube web make D-tube What like about fuselage construction tail builds up light allowing larger stabilizer elevator smoother control through maneuver stabilizer elevator could also built-up would save about ounce overall weightvery important rear end Megas Aetos has torsion bar landing gear setup bounce-free takeoffs landings controls have one-to-one ratio same used flaps elevator top Stunt pilots wing has 551 aspect ratio average 20% flaps great turning ability fuel tank uniflow wedge type containing 375 fluid ounces slip stream vent goes directly back tank next engine pickup tube wedge Both soldered place overflow vent capped before starting engine Sullivan 4-oz tank could used instead building own Construction After studying plans carefully make patterns out posterboard Use carbon paper tracing parts cut out pattern Fine-sand pattern edges can make smooth line felt-tip ball-point pen wood Buy wood careful ly get proper weight straight ness text arranged suggested building sequence Fuselage always assemble fuselage first can drying work being done rest plane Begin cutting out / balsa sheet sides plywood doublers Remember put engine cutout outboard side A-in balsa core can made out two layers / sheet Butt-glue balsa plywood fuse lage sides together Cut plywood doubler first doubler meets balsa side use plywood edge guide cut balsa side perfect joint Remember keep top edge fuselage straight alignment Glue joint together using masking tape both sides pull joint tight Cut engine beams size help construction fuselage suggest making vise out plywood eight 8-32 x 2-in screws washers wing nuts Drill eight holes three top three bottom middle airfoil Fox 35 bottom backplate will stick through fuselage 3A6-in dia about A-in away fuselage used Titebond glue fuselage Remove tape fuselage sides just before glulng clamping vise Slip fuselage tighten Set aside dry about 24-48 hours fuselage drying cut out wing parts Wing Cut ribs sheet balsa indicated thickness plan Punch holes lead-outs using metal lipstick top filed sharp Drill solder piece A-in music wire about halfway up punch grip help twist hole top will enable push out wood circles homemade April1985 71 Left If tank centerline isnt engine intake centerline wont able get engine run consistently air short length music wire helps placing tank correctly Right lipstick cap 1/16-in music wire through foreground just left center sharpened become handy punch making lead-out holes wing ribs such Device simple effective Above havent tried adjustable lead-out guide before dont know what youre missing can really finetune amount line pull easy make Left Large tall surfaces high aspect ratio wing 55 1 show up Authors model covered medium-grade siikspan painted over Sig Diana Cream trimmed Chocolate Brown Compiete finishing steps text photos show exterior control linkages flaps elevators Notice overlap pushrod outer holes control horns used minimized control sensitivIty Yet ship will turn sharply full control given little hook behind tall wheel stooge releasefor times want fly cant find anyone around lend helping hand Left authors model powered venerable Fox 35behind homemade fuel tank 4-oz Sullivan tank could used Instead shape mounting landing gear provide excellent shock-absorbIng qusilties Right Roger David get ready fly punch avoid cracking ribs punch holes before cut ribs out balsa sheet fine-sand airfoil outline Place sheet wax paper over wing plan splice trailing edge sheeting over plan Glue ribs place trailing edge sheeting Dont forget glue two / sq bellcrank sup ports same time center five ribs glued place Also glue bellcrank platform Glue top / sq spar top trailing edge planking time well wing drying start work solid surfaces flaps rudder stabilizer elevator stabilizer elevator cut /6 sheet balsa cant find size will like use 5/4 sheet because its little stronger length Draw line edge side surface center Use line guide sand hinging Sand leading edge flaps elevator wedge 300 leg Shape airfoil per plan being careful make leading edge stabilizer blunt Use Sig wire-type control horn make own used three hinges per side flaps two per side elevator Glue control horns epoxy strength Epoxy hinges stabilizer elevator horn bearing stabilizer Cut sand flaps proper outline Use Sig offset horn Epoxy place Remember sand flap tips glued wing trailing edge However glue flaps flap tips wing just yet wing fuselage must glued first Wing again briefly Remove pins flip wing over line plan secure pins Glue bottom spar now top leading edge triangle Let dry thoroughly Fuselage should have time dry now day two least Bend tail wheel gear out /,-in music wire Cut out its bulkhead bind two wraps copper wire around notches glue fuselage proper angle Also glue both top bottom A-in balsa blocks fuselage pin let dry Rudder Cut A-in sheet 72 Model Aviation about plane looks pilot its flight trim bottom under rudder provide visual reference horizontal flight Photos author Full-Size Plans Available. See Page 180 grain direction shown plan Sand airfoil sure airfoil curve inboard side Wing Connect lead-out wires belicrank thread through inboard-side ribs left side counter clockwise flying right side clockwise flyingas viewed rear Bend pushrod %2-in music wire solder washer top bot tom sandwiching bellcrank wrap two copper wire around solder goes help make good joint Have pushrod come down top high enough cranks arms hit Secure bellcrank wrap copper wire threads above nut before soldering Add wing tips also adjust able lead-out guide Dont afraid use adjustable guide havent before simple make uses plywood slide housing / plywood slider plus 4-40 x A-in screw T-nut Add tip ribs next weight outboard wing tip latter use 9 10 A-in rosin core solder makes about 3/4 oz Bend lead-out wires bellcrank neutral position sure bend ends same length neutral position can found pushrods ate soldered leading edge planking next Glue first leading edge triangle use 36-in wood have splice center rib Make sure planking edge straight buy it will building-in warp glue dry moisten outside planking bend spar pin care fully sponge should used paint water finish gluing planking just yet Wait till water has evaporated wood dry hair dryer heat gun can used speed process reason go through step leading edge planking will fighting rest structure get straight Its just going stay have formed Unpin planking use glue gun run bead glue over rib spar Pin align keep out warps Landing gear Bend out A-in music wire bolt fuselage using two Sig nylon gear clips two tin straps bent around A-in music wire cant find gear clips make out strips cut tin can forward bend landing gear helps absorb first contact ground make landings smoother Youll want try transition glide ground roll continuous motion Wing last time leading edge 7T - fr-I-4 1 Fi II II II Ii Iftj 7L U U3IIJ u T -iS Ii iLl K / I4 Kit 2 iiv V1 4 gluing planking dry web can made out scrap A6 balsa sheet grain vertical glue web between spars will add strength help keep wing alignment Make marks leading edge trailing edge planking side center rib will thickness fuselage 3/4 will help locate place fuselage will go center planking put Next plank center ribs /~ sheet fuselage wing glue dry time has come put units together Slip flaps through wing Continued page 168 April 1985 73 CL Racing/Ballard Continued page 165 Line entanglements have received several letters concerning problems volved pilots entering exiting pilot circleand especially during takeoffs am enclosing picture Vic Garner California entering pilot cir cle angle avoid collision line entanglement other pilot already walking center circle area imperative pilot has center circle position keep hand high avoid hanging lines pilot enter ing circle especially pilot enters tall stature several cases have seen pilots enter circle directly after taking off either have collision other pilot line entanglement causes aircraft crash During recent contest St Louis observed Sig Racing teams pit man left leg extended back prevent aircrafts wing hitting takeoff occasions have seen pit men kneel down both knees air craft released wing brushes pitmans pant leg knee causing air craft torque inside circle chip ends off prop especially true longer-winged Rat Racers Scale Racers have 22to 24-inch wing Also pitting left leg extended allows pitman follow through hand holding aircraft guide smoothly off surface about 21-size Rat racer have several calls individuals building smaller 21-size Rats couple modelers Texas Cali fornia Chicago building try out spring will keep readers informed perform ance handling characteristics As always comments solicited appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 Megas Aetos/Greene Continued page 73 slot first wing Use triangle get wing fuselage square another angle should 900 wing leading edge Also fuselage should 900 workbench elevate wing tips equal distance surface Have fuselage just touching workbench used epoxy glue wing fuselage dry drill 1A-in hole fuselage bottom through wing near leading edge shown plan glue dowel will help keep together through years Flaps Epoxy three hinges inboard flap first followed three hinges outboard wing trailing edge dry epoxy other end hinges flap wing found best start center work tip second-stage hinge epoxy ing time remembering push hinge far will go Leave very small gap smaller better Next epoxy horn bearing trail ing edge wing Tail surfaces Epoxy stabilizer elevator fuselage being careful have unit aligned perfectly Eyeball stabilizer front having bottom stabilizer appear just sit top wing Also measure distance hinge stabilizer tip straight forward hinge flap should same side plane will yaw time control given Get alignment perfect before epoxy dries Reinforce stabilizer mounting /4-in triangle scrap under side fuselage Glue rudder place includ ing lower portion lower portion glves straight line reference during maneuvers Controls start hookup bellcrank stabilizer neutral pushrod stabilizer bellcrank will overlap two inches Wrap overlap copper wirenot wrap small two three wraps spaced about / apart solder small wraps will stronger long Next solder flap pushrod main control surfaces connect ing same way use one-to-one hookup con trol surfaces airplane responds very quickly pushrods should go holes farthest control sur face like use hole closest pivot point bellcrank setup makes control response very slow However choice yours Fuel tank like build own ever 3/2- 4-oz Sullivan slant tank similar will work just fine Whatever tank choose make sure center tank center engine look outboard tip good way check take glow plug out place piece l/in music wire across cooling fins toward leading edge wing over tank tank pickup should centerline tank shown plan Use 4 x 10-in tin stock 1A-in brass tubing Use rosin-core solder fuselage vise can help bending tank used light-duty soldering gun heavy-duty should better job 168 Model Aviation Power Soar New Heights S LT-50 GEAR MOTOR Leisures Gear Drive conversion 31 powerful LT-50 develops up 2 lbs static trhrust Gear Drive also features ball bearing Delrin/brass gearing glass loaded polycarbonate housing Send self-addressed stamped envelope catalog ap plication notes Leisure 11 DeerspringllrvinelCA 92714 MOD-LERM AFFORDABLE MODELING ACCESSORIES SOCKET HEAD SCREWS W/WASHERS No 028 90 No 038 Zi44~/4 1P1 $100 No 0786 4/42 Pk$110 No 088 532 4 12 MC $1 20 No 118 ~i*-* 2t' $155 BLIND NUTS AND LOCK NUTS No 128440 Blind12 Pk$ 95 No 148 6-3~ba jt2 P $1 10 No 158 8rBlI~ 12pk $1 25 No 168 4 LoCk/ 2k $ 45 No 188 Lock/ /12 $ 50 No 1988Locj ji2P$ 55 NYLI4WING OLTS No 208832xtl2Pk$ 80 No 218 $41f l2Pk $ 90 No 23B -3t1--lf4 1-2tk $110 No 248 10-32 x 11/2 12 Ph $135 No 268 1/4-2k x11/2 12 Ph $2 10 No 288 1/4-2xQ V 2Pk $250 No 3081r4-20x3l2Pk$298 PR0P9PR 45A Sturdy letM iiA4iatic finger guard Protects against Cuts bruises white starting engine Package contains 1 smalt 1 medium 1 laige Si 50 SILICONE FUEL TUBING 60A 3/32 Small Medium 3 Ft $1 75 61A 1/8MediumtoLarge 3Ft$189 MODEL KLEEN 75A 2 ounce package makes tutl gallon Removes gtow gas fuel residue Mixes tap water Spray wipe off soft cloth paper towel$1 98 2 00 less Si 50 shipping ver S12 00 free shipping residents add 5% sales tax D s cash add Si 25 MODLER POBOX 70 MCKEE KY 40447 Wrfe coniplefe price list Dealer inquiries welconie 170 Model Aviation Finish Fine-sand model 400-grit sandpaper block about 2% x 4 Using such block will pro duce surface Brush three coats clear dope sand 400-grit sandpaper until smooth Cover wings medium-grade silkspan Brush another three coats clear over silkspan lightly sand 400-grit wet-or-dry sandpaper Just smooth rough spots Brush coat sanding sealer over entire plane sealer can made putting about eight tablespoons talcum powder per quart clearand some thinner keep getting too thick using light base color some could added sealer well will help base coat cover faster Sand sealer 400-grit paper wood grain still can seen another coat sealer should cover wood grain covered apply coat clear over sealer Now its time color base color used Sig Diana Cream Chocolate Brown used trim letters numbers color dry dilute some clear least 50% thinner 1-in wider brush single-stroke coat brush place once color will come up Its good wait 24 48 hours between coats color clear paint similar amount time before fly Megas Aetos thinners paint can dry Flying model flies smoothly can AMA Stunt pattern should provide learner good base get aerobatics control surfaces move maximum 30 degress either side neutral possibility over-control kept minimum very stable because stabilizer area much larger elevator area ever Megas Aetos will turn very sharply given full control am sure Megas Aetos will give much enjoyment has given Mine weighs 42 oz Yours could made weigh less using iron-on covering lighter wood Happy flying FF Duration/Mouser Continued page 75 clarified prohibit such models Walt Erbach pushed record up beyond what Aeronuts done Roy White came off couple nice records too couple years ago David Erbach ran international postal contest Ornithopters everyones surprise Japanese came through take home marbles lad Australia far behind US left dust Somewhere middle little over year ago Pat Deshaye created OMS out thin air established annual dues zero started publication Flapper Facts out woodwork came Al Rohrbaughhe has pecking away Ornithopters some timewho pushed high-ceiling record over 10 minutes OMSs members feller name Paul MacCready awarded contract Smithsonian Institution study feasibility building electric-powered radio-controlled Orni thoptera replica prehistoric flying beastto fly up down Mall figured indeed feasible now process proving As membership OMS increased became Deshaye could handle alone out own pocket organization got organized Officers . have officers President Frank Kieser vice-president Walt Erbach secretary treasurer Shirley Roy White Pat Deshaye remains editor Flapper Facts Gos. have goals Advancement communication technology encouragement competi tion fun flying service focal point restructuring competition rules documentation Ornithopter history establishment recognized AMA special-interest group Dues. have dues Any organiza tion must have dues order survive $7 coin realm per annum includes subscription Flapper Facts entry fee 1985 postal contest Send Shirley White Rt 1 Box 241 Catawissa MO 63015 Members e few less lot about Fiftieth anniversary Chicago Aeronuts banquet interested parties may tend April 20 1985 Midway Motor Lodge Elk Grove Village IL Cost $20 full refunds up April 13 Choice prime rib broiled sole Rooms available Lodge has limo service OHare doubles about $50 per night Send reservation request check request details George Gordey 2901 Prairie Brookfield IL 60513 Come see guys read about magazines Zaic Yearbooks Thirties live event should model aviation reunion century especially smart Aeronuts now living California attend Right Carl Pete Ed Walt Teen t-of-print NFFS Sympo reports Ac cording recent survey three kinds people entire world namely would like buy out-of-print Sympos cant find seller b have extra out-ofprint Sympos cant find buyer c others Well now sneaky scheme abrewing whereby can get together b vice versa ones c will just have struggle Want REV-VP Ptps Average laveatorg 4900 Prep! Over 50 Sizes beats New About Custeni Tuned Engines Combat Raciag Free FlightS Sped Compatitioa Accessories S Parts Pyle Raciag Pattera S Sport PA S V/c, liege laveatery! Specialists Custe Ce 3D S Reed Eg/us Std S I/C Custom Parts Ce Eaglues Complete laveatery OF ladividual Stock Parts Curreat KD S Medallie Eg/us Muap New Parts Discoatiaued Ce Eagiacs Rep/ku Orwick 23 29 0 Engines 1g/tie Eagiac Accessories Vise S MasterCurd Welcome Petalled Irochure Sead 75E Nustom KraFtsmaash/p PD 203 Laguiia Nulls CA 32654 Ph 7141395162 FOX FUEL LINE IS ABOUT THE MOST EXPENSIVE YOU CAN BUY SO WHY DOES IT SELL BECAUSE IT IS THE BEST OF COURSE MATERIAL cone fuel line notoriously susceptible pin holes tears Fox special formula comparison surgical tubing elastic can buy DIMENSIONS ugh lengthy testing have determined wall ID ratio resists collapsing pinching kinking best fuel line specially made us specs Take close look will see best SURGICAL Snail Pk $ 800 Spool Med Pk $1000 Spool Large Pk $1200 spool TUFF LINE Small Pk $1800 Spool Med $100 Pk $2600 Spool Large $140 Pk $3500 Spool Visa MasterCard Accepted FOX MFG Co 5305 TOWSON AVE FORT SMITH AR 72901 501 646-1656
Edition: Model Aviation - 1985/04
Page Numbers: 70, 71, 72, 73, 168, 170
w design can used stepping stone all-out Precision Aero batics flying However advanced funflying isyourthing its excellent Recom mended engine size 54-inspan ship 3540 cu U Roger S Greene MY ARTICLE model named Aetos Greek word meaning eagle Fox 25-size engine printed March Top Picture plane full built-up fuselage certaInly would considered 1979 Model Aviation plane full-blown Precision Aerobatics design profile fuselage builds quickly can have time perfectIng maneuversor just fun flying Above Roger Greene L intended gap-filler before going son DavId show off featured plane earlier Aetos latter now age five larger size plane 70 Model Aviation have now taken original propor tions enlarged wingspan 54 fit 35- 40-size engine call new plane Megas Aetos meaning large eagle plane novice get feel large plane too much expense wing construction straightfor ward C-tube web make D-tube What like about fuselage construction tail builds up light allowing larger stabilizer elevator smoother control through maneuver stabilizer elevator could also built-up would save about ounce overall weightvery important rear end Megas Aetos has torsion bar landing gear setup bounce-free takeoffs landings controls have one-to-one ratio same used flaps elevator top Stunt pilots wing has 551 aspect ratio average 20% flaps great turning ability fuel tank uniflow wedge type containing 375 fluid ounces slip stream vent goes directly back tank next engine pickup tube wedge Both soldered place overflow vent capped before starting engine Sullivan 4-oz tank could used instead building own Construction After studying plans carefully make patterns out posterboard Use carbon paper tracing parts cut out pattern Fine-sand pattern edges can make smooth line felt-tip ball-point pen wood Buy wood careful ly get proper weight straight ness text arranged suggested building sequence Fuselage always assemble fuselage first can drying work being done rest plane Begin cutting out / balsa sheet sides plywood doublers Remember put engine cutout outboard side A-in balsa core can made out two layers / sheet Butt-glue balsa plywood fuse lage sides together Cut plywood doubler first doubler meets balsa side use plywood edge guide cut balsa side perfect joint Remember keep top edge fuselage straight alignment Glue joint together using masking tape both sides pull joint tight Cut engine beams size help construction fuselage suggest making vise out plywood eight 8-32 x 2-in screws washers wing nuts Drill eight holes three top three bottom middle airfoil Fox 35 bottom backplate will stick through fuselage 3A6-in dia about A-in away fuselage used Titebond glue fuselage Remove tape fuselage sides just before glulng clamping vise Slip fuselage tighten Set aside dry about 24-48 hours fuselage drying cut out wing parts Wing Cut ribs sheet balsa indicated thickness plan Punch holes lead-outs using metal lipstick top filed sharp Drill solder piece A-in music wire about halfway up punch grip help twist hole top will enable push out wood circles homemade April1985 71 Left If tank centerline isnt engine intake centerline wont able get engine run consistently air short length music wire helps placing tank correctly Right lipstick cap 1/16-in music wire through foreground just left center sharpened become handy punch making lead-out holes wing ribs such Device simple effective Above havent tried adjustable lead-out guide before dont know what youre missing can really finetune amount line pull easy make Left Large tall surfaces high aspect ratio wing 55 1 show up Authors model covered medium-grade siikspan painted over Sig Diana Cream trimmed Chocolate Brown Compiete finishing steps text photos show exterior control linkages flaps elevators Notice overlap pushrod outer holes control horns used minimized control sensitivIty Yet ship will turn sharply full control given little hook behind tall wheel stooge releasefor times want fly cant find anyone around lend helping hand Left authors model powered venerable Fox 35behind homemade fuel tank 4-oz Sullivan tank could used Instead shape mounting landing gear provide excellent shock-absorbIng qusilties Right Roger David get ready fly punch avoid cracking ribs punch holes before cut ribs out balsa sheet fine-sand airfoil outline Place sheet wax paper over wing plan splice trailing edge sheeting over plan Glue ribs place trailing edge sheeting Dont forget glue two / sq bellcrank sup ports same time center five ribs glued place Also glue bellcrank platform Glue top / sq spar top trailing edge planking time well wing drying start work solid surfaces flaps rudder stabilizer elevator stabilizer elevator cut /6 sheet balsa cant find size will like use 5/4 sheet because its little stronger length Draw line edge side surface center Use line guide sand hinging Sand leading edge flaps elevator wedge 300 leg Shape airfoil per plan being careful make leading edge stabilizer blunt Use Sig wire-type control horn make own used three hinges per side flaps two per side elevator Glue control horns epoxy strength Epoxy hinges stabilizer elevator horn bearing stabilizer Cut sand flaps proper outline Use Sig offset horn Epoxy place Remember sand flap tips glued wing trailing edge However glue flaps flap tips wing just yet wing fuselage must glued first Wing again briefly Remove pins flip wing over line plan secure pins Glue bottom spar now top leading edge triangle Let dry thoroughly Fuselage should have time dry now day two least Bend tail wheel gear out /,-in music wire Cut out its bulkhead bind two wraps copper wire around notches glue fuselage proper angle Also glue both top bottom A-in balsa blocks fuselage pin let dry Rudder Cut A-in sheet 72 Model Aviation about plane looks pilot its flight trim bottom under rudder provide visual reference horizontal flight Photos author Full-Size Plans Available. See Page 180 grain direction shown plan Sand airfoil sure airfoil curve inboard side Wing Connect lead-out wires belicrank thread through inboard-side ribs left side counter clockwise flying right side clockwise flyingas viewed rear Bend pushrod %2-in music wire solder washer top bot tom sandwiching bellcrank wrap two copper wire around solder goes help make good joint Have pushrod come down top high enough cranks arms hit Secure bellcrank wrap copper wire threads above nut before soldering Add wing tips also adjust able lead-out guide Dont afraid use adjustable guide havent before simple make uses plywood slide housing / plywood slider plus 4-40 x A-in screw T-nut Add tip ribs next weight outboard wing tip latter use 9 10 A-in rosin core solder makes about 3/4 oz Bend lead-out wires bellcrank neutral position sure bend ends same length neutral position can found pushrods ate soldered leading edge planking next Glue first leading edge triangle use 36-in wood have splice center rib Make sure planking edge straight buy it will building-in warp glue dry moisten outside planking bend spar pin care fully sponge should used paint water finish gluing planking just yet Wait till water has evaporated wood dry hair dryer heat gun can used speed process reason go through step leading edge planking will fighting rest structure get straight Its just going stay have formed Unpin planking use glue gun run bead glue over rib spar Pin align keep out warps Landing gear Bend out A-in music wire bolt fuselage using two Sig nylon gear clips two tin straps bent around A-in music wire cant find gear clips make out strips cut tin can forward bend landing gear helps absorb first contact ground make landings smoother Youll want try transition glide ground roll continuous motion Wing last time leading edge 7T - fr-I-4 1 Fi II II II Ii Iftj 7L U U3IIJ u T -iS Ii iLl K / I4 Kit 2 iiv V1 4 gluing planking dry web can made out scrap A6 balsa sheet grain vertical glue web between spars will add strength help keep wing alignment Make marks leading edge trailing edge planking side center rib will thickness fuselage 3/4 will help locate place fuselage will go center planking put Next plank center ribs /~ sheet fuselage wing glue dry time has come put units together Slip flaps through wing Continued page 168 April 1985 73 CL Racing/Ballard Continued page 165 Line entanglements have received several letters concerning problems volved pilots entering exiting pilot circleand especially during takeoffs am enclosing picture Vic Garner California entering pilot cir cle angle avoid collision line entanglement other pilot already walking center circle area imperative pilot has center circle position keep hand high avoid hanging lines pilot enter ing circle especially pilot enters tall stature several cases have seen pilots enter circle directly after taking off either have collision other pilot line entanglement causes aircraft crash During recent contest St Louis observed Sig Racing teams pit man left leg extended back prevent aircrafts wing hitting takeoff occasions have seen pit men kneel down both knees air craft released wing brushes pitmans pant leg knee causing air craft torque inside circle chip ends off prop especially true longer-winged Rat Racers Scale Racers have 22to 24-inch wing Also pitting left leg extended allows pitman follow through hand holding aircraft guide smoothly off surface about 21-size Rat racer have several calls individuals building smaller 21-size Rats couple modelers Texas Cali fornia Chicago building try out spring will keep readers informed perform ance handling characteristics As always comments solicited appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 Megas Aetos/Greene Continued page 73 slot first wing Use triangle get wing fuselage square another angle should 900 wing leading edge Also fuselage should 900 workbench elevate wing tips equal distance surface Have fuselage just touching workbench used epoxy glue wing fuselage dry drill 1A-in hole fuselage bottom through wing near leading edge shown plan glue dowel will help keep together through years Flaps Epoxy three hinges inboard flap first followed three hinges outboard wing trailing edge dry epoxy other end hinges flap wing found best start center work tip second-stage hinge epoxy ing time remembering push hinge far will go Leave very small gap smaller better Next epoxy horn bearing trail ing edge wing Tail surfaces Epoxy stabilizer elevator fuselage being careful have unit aligned perfectly Eyeball stabilizer front having bottom stabilizer appear just sit top wing Also measure distance hinge stabilizer tip straight forward hinge flap should same side plane will yaw time control given Get alignment perfect before epoxy dries Reinforce stabilizer mounting /4-in triangle scrap under side fuselage Glue rudder place includ ing lower portion lower portion glves straight line reference during maneuvers Controls start hookup bellcrank stabilizer neutral pushrod stabilizer bellcrank will overlap two inches Wrap overlap copper wirenot wrap small two three wraps spaced about / apart solder small wraps will stronger long Next solder flap pushrod main control surfaces connect ing same way use one-to-one hookup con trol surfaces airplane responds very quickly pushrods should go holes farthest control sur face like use hole closest pivot point bellcrank setup makes control response very slow However choice yours Fuel tank like build own ever 3/2- 4-oz Sullivan slant tank similar will work just fine Whatever tank choose make sure center tank center engine look outboard tip good way check take glow plug out place piece l/in music wire across cooling fins toward leading edge wing over tank tank pickup should centerline tank shown plan Use 4 x 10-in tin stock 1A-in brass tubing Use rosin-core solder fuselage vise can help bending tank used light-duty soldering gun heavy-duty should better job 168 Model Aviation Power Soar New Heights S LT-50 GEAR MOTOR Leisures Gear Drive conversion 31 powerful LT-50 develops up 2 lbs static trhrust Gear Drive also features ball bearing Delrin/brass gearing glass loaded polycarbonate housing Send self-addressed stamped envelope catalog ap plication notes Leisure 11 DeerspringllrvinelCA 92714 MOD-LERM AFFORDABLE MODELING ACCESSORIES SOCKET HEAD SCREWS W/WASHERS No 028 90 No 038 Zi44~/4 1P1 $100 No 0786 4/42 Pk$110 No 088 532 4 12 MC $1 20 No 118 ~i*-* 2t' $155 BLIND NUTS AND LOCK NUTS No 128440 Blind12 Pk$ 95 No 148 6-3~ba jt2 P $1 10 No 158 8rBlI~ 12pk $1 25 No 168 4 LoCk/ 2k $ 45 No 188 Lock/ /12 $ 50 No 1988Locj ji2P$ 55 NYLI4WING OLTS No 208832xtl2Pk$ 80 No 218 $41f l2Pk $ 90 No 23B -3t1--lf4 1-2tk $110 No 248 10-32 x 11/2 12 Ph $135 No 268 1/4-2k x11/2 12 Ph $2 10 No 288 1/4-2xQ V 2Pk $250 No 3081r4-20x3l2Pk$298 PR0P9PR 45A Sturdy letM iiA4iatic finger guard Protects against Cuts bruises white starting engine Package contains 1 smalt 1 medium 1 laige Si 50 SILICONE FUEL TUBING 60A 3/32 Small Medium 3 Ft $1 75 61A 1/8MediumtoLarge 3Ft$189 MODEL KLEEN 75A 2 ounce package makes tutl gallon Removes gtow gas fuel residue Mixes tap water Spray wipe off soft cloth paper towel$1 98 2 00 less Si 50 shipping ver S12 00 free shipping residents add 5% sales tax D s cash add Si 25 MODLER POBOX 70 MCKEE KY 40447 Wrfe coniplefe price list Dealer inquiries welconie 170 Model Aviation Finish Fine-sand model 400-grit sandpaper block about 2% x 4 Using such block will pro duce surface Brush three coats clear dope sand 400-grit sandpaper until smooth Cover wings medium-grade silkspan Brush another three coats clear over silkspan lightly sand 400-grit wet-or-dry sandpaper Just smooth rough spots Brush coat sanding sealer over entire plane sealer can made putting about eight tablespoons talcum powder per quart clearand some thinner keep getting too thick using light base color some could added sealer well will help base coat cover faster Sand sealer 400-grit paper wood grain still can seen another coat sealer should cover wood grain covered apply coat clear over sealer Now its time color base color used Sig Diana Cream Chocolate Brown used trim letters numbers color dry dilute some clear least 50% thinner 1-in wider brush single-stroke coat brush place once color will come up Its good wait 24 48 hours between coats color clear paint similar amount time before fly Megas Aetos thinners paint can dry Flying model flies smoothly can AMA Stunt pattern should provide learner good base get aerobatics control surfaces move maximum 30 degress either side neutral possibility over-control kept minimum very stable because stabilizer area much larger elevator area ever Megas Aetos will turn very sharply given full control am sure Megas Aetos will give much enjoyment has given Mine weighs 42 oz Yours could made weigh less using iron-on covering lighter wood Happy flying FF Duration/Mouser Continued page 75 clarified prohibit such models Walt Erbach pushed record up beyond what Aeronuts done Roy White came off couple nice records too couple years ago David Erbach ran international postal contest Ornithopters everyones surprise Japanese came through take home marbles lad Australia far behind US left dust Somewhere middle little over year ago Pat Deshaye created OMS out thin air established annual dues zero started publication Flapper Facts out woodwork came Al Rohrbaughhe has pecking away Ornithopters some timewho pushed high-ceiling record over 10 minutes OMSs members feller name Paul MacCready awarded contract Smithsonian Institution study feasibility building electric-powered radio-controlled Orni thoptera replica prehistoric flying beastto fly up down Mall figured indeed feasible now process proving As membership OMS increased became Deshaye could handle alone out own pocket organization got organized Officers . have officers President Frank Kieser vice-president Walt Erbach secretary treasurer Shirley Roy White Pat Deshaye remains editor Flapper Facts Gos. have goals Advancement communication technology encouragement competi tion fun flying service focal point restructuring competition rules documentation Ornithopter history establishment recognized AMA special-interest group Dues. have dues Any organiza tion must have dues order survive $7 coin realm per annum includes subscription Flapper Facts entry fee 1985 postal contest Send Shirley White Rt 1 Box 241 Catawissa MO 63015 Members e few less lot about Fiftieth anniversary Chicago Aeronuts banquet interested parties may tend April 20 1985 Midway Motor Lodge Elk Grove Village IL Cost $20 full refunds up April 13 Choice prime rib broiled sole Rooms available Lodge has limo service OHare doubles about $50 per night Send reservation request check request details George Gordey 2901 Prairie Brookfield IL 60513 Come see guys read about magazines Zaic Yearbooks Thirties live event should model aviation reunion century especially smart Aeronuts now living California attend Right Carl Pete Ed Walt Teen t-of-print NFFS Sympo reports Ac cording recent survey three kinds people entire world namely would like buy out-of-print Sympos cant find seller b have extra out-ofprint Sympos cant find buyer c others Well now sneaky scheme abrewing whereby can get together b vice versa ones c will just have struggle Want REV-VP Ptps Average laveatorg 4900 Prep! Over 50 Sizes beats New About Custeni Tuned Engines Combat Raciag Free FlightS Sped Compatitioa Accessories S Parts Pyle Raciag Pattera S Sport PA S V/c, liege laveatery! Specialists Custe Ce 3D S Reed Eg/us Std S I/C Custom Parts Ce Eaglues Complete laveatery OF ladividual Stock Parts Curreat KD S Medallie Eg/us Muap New Parts Discoatiaued Ce Eagiacs Rep/ku Orwick 23 29 0 Engines 1g/tie Eagiac Accessories Vise S MasterCurd Welcome Petalled Irochure Sead 75E Nustom KraFtsmaash/p PD 203 Laguiia Nulls CA 32654 Ph 7141395162 FOX FUEL LINE IS ABOUT THE MOST EXPENSIVE YOU CAN BUY SO WHY DOES IT SELL BECAUSE IT IS THE BEST OF COURSE MATERIAL cone fuel line notoriously susceptible pin holes tears Fox special formula comparison surgical tubing elastic can buy DIMENSIONS ugh lengthy testing have determined wall ID ratio resists collapsing pinching kinking best fuel line specially made us specs Take close look will see best SURGICAL Snail Pk $ 800 Spool Med Pk $1000 Spool Large Pk $1200 spool TUFF LINE Small Pk $1800 Spool Med $100 Pk $2600 Spool Large $140 Pk $3500 Spool Visa MasterCard Accepted FOX MFG Co 5305 TOWSON AVE FORT SMITH AR 72901 501 646-1656
Edition: Model Aviation - 1985/04
Page Numbers: 70, 71, 72, 73, 168, 170
w design can used stepping stone all-out Precision Aero batics flying However advanced funflying isyourthing its excellent Recom mended engine size 54-inspan ship 3540 cu U Roger S Greene MY ARTICLE model named Aetos Greek word meaning eagle Fox 25-size engine printed March Top Picture plane full built-up fuselage certaInly would considered 1979 Model Aviation plane full-blown Precision Aerobatics design profile fuselage builds quickly can have time perfectIng maneuversor just fun flying Above Roger Greene L intended gap-filler before going son DavId show off featured plane earlier Aetos latter now age five larger size plane 70 Model Aviation have now taken original propor tions enlarged wingspan 54 fit 35- 40-size engine call new plane Megas Aetos meaning large eagle plane novice get feel large plane too much expense wing construction straightfor ward C-tube web make D-tube What like about fuselage construction tail builds up light allowing larger stabilizer elevator smoother control through maneuver stabilizer elevator could also built-up would save about ounce overall weightvery important rear end Megas Aetos has torsion bar landing gear setup bounce-free takeoffs landings controls have one-to-one ratio same used flaps elevator top Stunt pilots wing has 551 aspect ratio average 20% flaps great turning ability fuel tank uniflow wedge type containing 375 fluid ounces slip stream vent goes directly back tank next engine pickup tube wedge Both soldered place overflow vent capped before starting engine Sullivan 4-oz tank could used instead building own Construction After studying plans carefully make patterns out posterboard Use carbon paper tracing parts cut out pattern Fine-sand pattern edges can make smooth line felt-tip ball-point pen wood Buy wood careful ly get proper weight straight ness text arranged suggested building sequence Fuselage always assemble fuselage first can drying work being done rest plane Begin cutting out / balsa sheet sides plywood doublers Remember put engine cutout outboard side A-in balsa core can made out two layers / sheet Butt-glue balsa plywood fuse lage sides together Cut plywood doubler first doubler meets balsa side use plywood edge guide cut balsa side perfect joint Remember keep top edge fuselage straight alignment Glue joint together using masking tape both sides pull joint tight Cut engine beams size help construction fuselage suggest making vise out plywood eight 8-32 x 2-in screws washers wing nuts Drill eight holes three top three bottom middle airfoil Fox 35 bottom backplate will stick through fuselage 3A6-in dia about A-in away fuselage used Titebond glue fuselage Remove tape fuselage sides just before glulng clamping vise Slip fuselage tighten Set aside dry about 24-48 hours fuselage drying cut out wing parts Wing Cut ribs sheet balsa indicated thickness plan Punch holes lead-outs using metal lipstick top filed sharp Drill solder piece A-in music wire about halfway up punch grip help twist hole top will enable push out wood circles homemade April1985 71 Left If tank centerline isnt engine intake centerline wont able get engine run consistently air short length music wire helps placing tank correctly Right lipstick cap 1/16-in music wire through foreground just left center sharpened become handy punch making lead-out holes wing ribs such Device simple effective Above havent tried adjustable lead-out guide before dont know what youre missing can really finetune amount line pull easy make Left Large tall surfaces high aspect ratio wing 55 1 show up Authors model covered medium-grade siikspan painted over Sig Diana Cream trimmed Chocolate Brown Compiete finishing steps text photos show exterior control linkages flaps elevators Notice overlap pushrod outer holes control horns used minimized control sensitivIty Yet ship will turn sharply full control given little hook behind tall wheel stooge releasefor times want fly cant find anyone around lend helping hand Left authors model powered venerable Fox 35behind homemade fuel tank 4-oz Sullivan tank could used Instead shape mounting landing gear provide excellent shock-absorbIng qusilties Right Roger David get ready fly punch avoid cracking ribs punch holes before cut ribs out balsa sheet fine-sand airfoil outline Place sheet wax paper over wing plan splice trailing edge sheeting over plan Glue ribs place trailing edge sheeting Dont forget glue two / sq bellcrank sup ports same time center five ribs glued place Also glue bellcrank platform Glue top / sq spar top trailing edge planking time well wing drying start work solid surfaces flaps rudder stabilizer elevator stabilizer elevator cut /6 sheet balsa cant find size will like use 5/4 sheet because its little stronger length Draw line edge side surface center Use line guide sand hinging Sand leading edge flaps elevator wedge 300 leg Shape airfoil per plan being careful make leading edge stabilizer blunt Use Sig wire-type control horn make own used three hinges per side flaps two per side elevator Glue control horns epoxy strength Epoxy hinges stabilizer elevator horn bearing stabilizer Cut sand flaps proper outline Use Sig offset horn Epoxy place Remember sand flap tips glued wing trailing edge However glue flaps flap tips wing just yet wing fuselage must glued first Wing again briefly Remove pins flip wing over line plan secure pins Glue bottom spar now top leading edge triangle Let dry thoroughly Fuselage should have time dry now day two least Bend tail wheel gear out /,-in music wire Cut out its bulkhead bind two wraps copper wire around notches glue fuselage proper angle Also glue both top bottom A-in balsa blocks fuselage pin let dry Rudder Cut A-in sheet 72 Model Aviation about plane looks pilot its flight trim bottom under rudder provide visual reference horizontal flight Photos author Full-Size Plans Available. See Page 180 grain direction shown plan Sand airfoil sure airfoil curve inboard side Wing Connect lead-out wires belicrank thread through inboard-side ribs left side counter clockwise flying right side clockwise flyingas viewed rear Bend pushrod %2-in music wire solder washer top bot tom sandwiching bellcrank wrap two copper wire around solder goes help make good joint Have pushrod come down top high enough cranks arms hit Secure bellcrank wrap copper wire threads above nut before soldering Add wing tips also adjust able lead-out guide Dont afraid use adjustable guide havent before simple make uses plywood slide housing / plywood slider plus 4-40 x A-in screw T-nut Add tip ribs next weight outboard wing tip latter use 9 10 A-in rosin core solder makes about 3/4 oz Bend lead-out wires bellcrank neutral position sure bend ends same length neutral position can found pushrods ate soldered leading edge planking next Glue first leading edge triangle use 36-in wood have splice center rib Make sure planking edge straight buy it will building-in warp glue dry moisten outside planking bend spar pin care fully sponge should used paint water finish gluing planking just yet Wait till water has evaporated wood dry hair dryer heat gun can used speed process reason go through step leading edge planking will fighting rest structure get straight Its just going stay have formed Unpin planking use glue gun run bead glue over rib spar Pin align keep out warps Landing gear Bend out A-in music wire bolt fuselage using two Sig nylon gear clips two tin straps bent around A-in music wire cant find gear clips make out strips cut tin can forward bend landing gear helps absorb first contact ground make landings smoother Youll want try transition glide ground roll continuous motion Wing last time leading edge 7T - fr-I-4 1 Fi II II II Ii Iftj 7L U U3IIJ u T -iS Ii iLl K / I4 Kit 2 iiv V1 4 gluing planking dry web can made out scrap A6 balsa sheet grain vertical glue web between spars will add strength help keep wing alignment Make marks leading edge trailing edge planking side center rib will thickness fuselage 3/4 will help locate place fuselage will go center planking put Next plank center ribs /~ sheet fuselage wing glue dry time has come put units together Slip flaps through wing Continued page 168 April 1985 73 CL Racing/Ballard Continued page 165 Line entanglements have received several letters concerning problems volved pilots entering exiting pilot circleand especially during takeoffs am enclosing picture Vic Garner California entering pilot cir cle angle avoid collision line entanglement other pilot already walking center circle area imperative pilot has center circle position keep hand high avoid hanging lines pilot enter ing circle especially pilot enters tall stature several cases have seen pilots enter circle directly after taking off either have collision other pilot line entanglement causes aircraft crash During recent contest St Louis observed Sig Racing teams pit man left leg extended back prevent aircrafts wing hitting takeoff occasions have seen pit men kneel down both knees air craft released wing brushes pitmans pant leg knee causing air craft torque inside circle chip ends off prop especially true longer-winged Rat Racers Scale Racers have 22to 24-inch wing Also pitting left leg extended allows pitman follow through hand holding aircraft guide smoothly off surface about 21-size Rat racer have several calls individuals building smaller 21-size Rats couple modelers Texas Cali fornia Chicago building try out spring will keep readers informed perform ance handling characteristics As always comments solicited appreciated John C Ballard 10102 Kimblewick Dr Louisville KY 40223 Megas Aetos/Greene Continued page 73 slot first wing Use triangle get wing fuselage square another angle should 900 wing leading edge Also fuselage should 900 workbench elevate wing tips equal distance surface Have fuselage just touching workbench used epoxy glue wing fuselage dry drill 1A-in hole fuselage bottom through wing near leading edge shown plan glue dowel will help keep together through years Flaps Epoxy three hinges inboard flap first followed three hinges outboard wing trailing edge dry epoxy other end hinges flap wing found best start center work tip second-stage hinge epoxy ing time remembering push hinge far will go Leave very small gap smaller better Next epoxy horn bearing trail ing edge wing Tail surfaces Epoxy stabilizer elevator fuselage being careful have unit aligned perfectly Eyeball stabilizer front having bottom stabilizer appear just sit top wing Also measure distance hinge stabilizer tip straight forward hinge flap should same side plane will yaw time control given Get alignment perfect before epoxy dries Reinforce stabilizer mounting /4-in triangle scrap under side fuselage Glue rudder place includ ing lower portion lower portion glves straight line reference during maneuvers Controls start hookup bellcrank stabilizer neutral pushrod stabilizer bellcrank will overlap two inches Wrap overlap copper wirenot wrap small two three wraps spaced about / apart solder small wraps will stronger long Next solder flap pushrod main control surfaces connect ing same way use one-to-one hookup con trol surfaces airplane responds very quickly pushrods should go holes farthest control sur face like use hole closest pivot point bellcrank setup makes control response very slow However choice yours Fuel tank like build own ever 3/2- 4-oz Sullivan slant tank similar will work just fine Whatever tank choose make sure center tank center engine look outboard tip good way check take glow plug out place piece l/in music wire across cooling fins toward leading edge wing over tank tank pickup should centerline tank shown plan Use 4 x 10-in tin stock 1A-in brass tubing Use rosin-core solder fuselage vise can help bending tank used light-duty soldering gun heavy-duty should better job 168 Model Aviation Power Soar New Heights S LT-50 GEAR MOTOR Leisures Gear Drive conversion 31 powerful LT-50 develops up 2 lbs static trhrust Gear Drive also features ball bearing Delrin/brass gearing glass loaded polycarbonate housing Send self-addressed stamped envelope catalog ap plication notes Leisure 11 DeerspringllrvinelCA 92714 MOD-LERM AFFORDABLE MODELING ACCESSORIES SOCKET HEAD SCREWS W/WASHERS No 028 90 No 038 Zi44~/4 1P1 $100 No 0786 4/42 Pk$110 No 088 532 4 12 MC $1 20 No 118 ~i*-* 2t' $155 BLIND NUTS AND LOCK NUTS No 128440 Blind12 Pk$ 95 No 148 6-3~ba jt2 P $1 10 No 158 8rBlI~ 12pk $1 25 No 168 4 LoCk/ 2k $ 45 No 188 Lock/ /12 $ 50 No 1988Locj ji2P$ 55 NYLI4WING OLTS No 208832xtl2Pk$ 80 No 218 $41f l2Pk $ 90 No 23B -3t1--lf4 1-2tk $110 No 248 10-32 x 11/2 12 Ph $135 No 268 1/4-2k x11/2 12 Ph $2 10 No 288 1/4-2xQ V 2Pk $250 No 3081r4-20x3l2Pk$298 PR0P9PR 45A Sturdy letM iiA4iatic finger guard Protects against Cuts bruises white starting engine Package contains 1 smalt 1 medium 1 laige Si 50 SILICONE FUEL TUBING 60A 3/32 Small Medium 3 Ft $1 75 61A 1/8MediumtoLarge 3Ft$189 MODEL KLEEN 75A 2 ounce package makes tutl gallon Removes gtow gas fuel residue Mixes tap water Spray wipe off soft cloth paper towel$1 98 2 00 less Si 50 shipping ver S12 00 free shipping residents add 5% sales tax D s cash add Si 25 MODLER POBOX 70 MCKEE KY 40447 Wrfe coniplefe price list Dealer inquiries welconie 170 Model Aviation Finish Fine-sand model 400-grit sandpaper block about 2% x 4 Using such block will pro duce surface Brush three coats clear dope sand 400-grit sandpaper until smooth Cover wings medium-grade silkspan Brush another three coats clear over silkspan lightly sand 400-grit wet-or-dry sandpaper Just smooth rough spots Brush coat sanding sealer over entire plane sealer can made putting about eight tablespoons talcum powder per quart clearand some thinner keep getting too thick using light base color some could added sealer well will help base coat cover faster Sand sealer 400-grit paper wood grain still can seen another coat sealer should cover wood grain covered apply coat clear over sealer Now its time color base color used Sig Diana Cream Chocolate Brown used trim letters numbers color dry dilute some clear least 50% thinner 1-in wider brush single-stroke coat brush place once color will come up Its good wait 24 48 hours between coats color clear paint similar amount time before fly Megas Aetos thinners paint can dry Flying model flies smoothly can AMA Stunt pattern should provide learner good base get aerobatics control surfaces move maximum 30 degress either side neutral possibility over-control kept minimum very stable because stabilizer area much larger elevator area ever Megas Aetos will turn very sharply given full control am sure Megas Aetos will give much enjoyment has given Mine weighs 42 oz Yours could made weigh less using iron-on covering lighter wood Happy flying FF Duration/Mouser Continued page 75 clarified prohibit such models Walt Erbach pushed record up beyond what Aeronuts done Roy White came off couple nice records too couple years ago David Erbach ran international postal contest Ornithopters everyones surprise Japanese came through take home marbles lad Australia far behind US left dust Somewhere middle little over year ago Pat Deshaye created OMS out thin air established annual dues zero started publication Flapper Facts out woodwork came Al Rohrbaughhe has pecking away Ornithopters some timewho pushed high-ceiling record over 10 minutes OMSs members feller name Paul MacCready awarded contract Smithsonian Institution study feasibility building electric-powered radio-controlled Orni thoptera replica prehistoric flying beastto fly up down Mall figured indeed feasible now process proving As membership OMS increased became Deshaye could handle alone out own pocket organization got organized Officers . have officers President Frank Kieser vice-president Walt Erbach secretary treasurer Shirley Roy White Pat Deshaye remains editor Flapper Facts Gos. have goals Advancement communication technology encouragement competi tion fun flying service focal point restructuring competition rules documentation Ornithopter history establishment recognized AMA special-interest group Dues. have dues Any organiza tion must have dues order survive $7 coin realm per annum includes subscription Flapper Facts entry fee 1985 postal contest Send Shirley White Rt 1 Box 241 Catawissa MO 63015 Members e few less lot about Fiftieth anniversary Chicago Aeronuts banquet interested parties may tend April 20 1985 Midway Motor Lodge Elk Grove Village IL Cost $20 full refunds up April 13 Choice prime rib broiled sole Rooms available Lodge has limo service OHare doubles about $50 per night Send reservation request check request details George Gordey 2901 Prairie Brookfield IL 60513 Come see guys read about magazines Zaic Yearbooks Thirties live event should model aviation reunion century especially smart Aeronuts now living California attend Right Carl Pete Ed Walt Teen t-of-print NFFS Sympo reports Ac cording recent survey three kinds people entire world namely would like buy out-of-print Sympos cant find seller b have extra out-ofprint Sympos cant find buyer c others Well now sneaky scheme abrewing whereby can get together b vice versa ones c will just have struggle Want REV-VP Ptps Average laveatorg 4900 Prep! Over 50 Sizes beats New About Custeni Tuned Engines Combat Raciag Free FlightS Sped Compatitioa Accessories S Parts Pyle Raciag Pattera S Sport PA S V/c, liege laveatery! Specialists Custe Ce 3D S Reed Eg/us Std S I/C Custom Parts Ce Eaglues Complete laveatery OF ladividual Stock Parts Curreat KD S Medallie Eg/us Muap New Parts Discoatiaued Ce Eagiacs Rep/ku Orwick 23 29 0 Engines 1g/tie Eagiac Accessories Vise S MasterCurd Welcome Petalled Irochure Sead 75E Nustom KraFtsmaash/p PD 203 Laguiia Nulls CA 32654 Ph 7141395162 FOX FUEL LINE IS ABOUT THE MOST EXPENSIVE YOU CAN BUY SO WHY DOES IT SELL BECAUSE IT IS THE BEST OF COURSE MATERIAL cone fuel line notoriously susceptible pin holes tears Fox special formula comparison surgical tubing elastic can buy DIMENSIONS ugh lengthy testing have determined wall ID ratio resists collapsing pinching kinking best fuel line specially made us specs Take close look will see best SURGICAL Snail Pk $ 800 Spool Med Pk $1000 Spool Large Pk $1200 spool TUFF LINE Small Pk $1800 Spool Med $100 Pk $2600 Spool Large $140 Pk $3500 Spool Visa MasterCard Accepted FOX MFG Co 5305 TOWSON AVE FORT SMITH AR 72901 501 646-1656