Free Flight OLD- TIMER Clarence Haught AIR PLANES emphasis hack basics hear about today makes wonden compressed-air engines CO-2 engines have mushroomed popularity within past five years types power plants low noise ease operation no messy oil make aeromodeling gentle sport Back late Twenties compressed-air motors engines quite popular articles plans published giving detailed structions enable modelers produce own engines home Designs varied singie-cylinder oscillating opposed twins three four five six-cylinder radials plus few rotary types thrown variety types designed around readily-avail able materials Fishing rod ferrule joints sometimes made piston cylinder sets hand honing lapping Others used brass tubing soldered together make piston cylinder sets Compressed-air engine design simple enough needed besides piston cylinder combination crankshaft convert linear motion pistons rotary motion drive prop connecting rod links two together An air supply directed cylinder turn rotary valve part ofor driven crankshaft provisions exhaust air end power stroke An exhaust port uncovered piston suffices cases crankshafts enclosedbeing merely sup ported couple bushings bearings Fuel stored cylindrical tank perhaps three inches diameter convenient length old days tanks spirally-rolled brass shim stick 003 006 inch thick soldered Some wrapped wire safety precaution Today tanks made carefully joining aluminum beverage cans epoxy glue Flight preparation consists pumping up pressure time-honored tire pump Continued page 163 July 198269 oo uiigstreei reauy tor avaimeome iiying Site witH Orwick 64-powered Powerhouseit can fly either FF RC good FF sites getting harder find idea has merit Mitcfl Post tine-tunesthe needle ot hIS L510fl9 1U MOOI ieria design followers due its good performance Delongs also have loyal followingtheyre rugged heavy put out good power Photo Dick Stouffer Dave Stottrefuels compressed-air model Rocky Hill CT Usual fuel load 100 strokes pumpgood exercise hot sum merday Its easy clean up model after flight just wipe sweat away Bockius photo Hoosier Whirlwind 3-cylinder compressed air motor Its permanently mounted brass air tank Air filler air control valve visible dome-like tank end swings large high-pitch rubber-type propeller Want Theyre available Bert Pond ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX AMA Membership82 Ace RC Inc24 Aerolite Products150 Aeromarine Interprizes152 Aerotrend Products124 Air Design Airtronics Inside Front Cover 37 73 Americas Hobby Center Inc9 Andrews Aircraft Model Co119 Applied Design Corp151 BK Products159 Bantam Precision Products84 Richard G Barron157 Bavarian Precision Products Inc10 Behrens Plan Service149 Black Hawk Models157 Boynton & Associates154 Brownsell Flag & Decal163 Byron Originals25 76 California Model Imports10 Carolina-Taffinder128 Charlies R/C Goodies14 Circus Hobbies Inc136-141 George Clapp158 Columbia Model Crafts25 Consumers Hobby Corp126-1 27 Contempo Enterprises129 Coverite143 Cox Hobbies77 Jim Crockett Replicas124 DA Enterprises152 DGM Industries148 Davey Sy stems Corp134 Du-Bro Products Inc18 Dynathrust Props Inc163 E & R Hobbies132 Eastcraft Specialty Products161 Electronic Servicenter146 Addis Elmore162 Enya Model Products Co19 FAI Model Supply Inc132 146 FHS Supply Inc147 Flightline Shirts124 Flyline Models160 Fourmost Products156 Fox Manufacturing Co125 Full Command Systems147 Fults Tooling148 Futaba Corp America29 Futurfilte149 Gator R/C Products153 Gemini Models Inc153 Gibbs Hobby & Research160 Carl Goldberg Models Inc15 Gorham Model Products151 Great Lakes Model & Mold Co119 Great Planes Models Mfg Co2 Grish Brothers142 161 Hall Fame Giant Plane Flyln158 Hardware Systems134 Hayes Products47 DR Higgins Associates158 Hobby Barn 120-123 Hobby Capitol Distributors8 Hobby Hideaway161 Hobby Horn125 Hobby Lobby International4-7 Hobby Radio Shop162 Hobby Shack128 Homer Sales Inc28 Indian City RC Club134 Indy R/C Sales Inc130-131 J5 Enterprises156 K & B Manufacturing Co132 K & S Engineering74 Kraft R/C Electronics154 Kraft Systems51 Kress Technology132 Kustom Kraftsmanship128 LTA Systems162 Left Bank R/C Distributors150 Litco Systems11 Lone Star Models159 MACS Products132 Majestic Models124 Maxair Sports49 McDaniel R/C Service74 Jim Messers Quality Products128 Midwest Products Company128 Miniature Aircraft Supply133 Model Engineering Norwalk14 Model Merchant143 Model Rectifier Corp side Back Cover Modelmania153 Mutchiers144-145 Jerry Nelson & Co156 PARCS Club162 Pacific Sailpianes75 Peck-Polymers158 Pica Products153 Dave Platt Models Inc75 Plaza Hobbycraft148 Prop Shop24 RAC Products159 RF Enterprises129 RJL Industries156 RLF Products146 Repla-Tech International150 Roush Mfg Co157 Saf-Flite Models Sailplane Factory Satellite City Sheldons Hobby Shop Sig Manufacturing Co Bob Smith R/C Aircraft Sullivan Products rwings Tatone Products LR Taylor & Co Technopower II Inc. Top Flite Models r Hobbies Inc Twinn-K Inc US Quadra WE Technical Services Waterlines Williams Brothers Windsor Propeller Co World Engines - 150 147 24 13 - 148 135 84 - 28 - - 155 - 76 153 146 83 76 161 Back Cover CA Zaic Co119 Zenith Aviation Books2337 Nick Ziroli Models84 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX FAI FID rules instituting special 50cm class explore possible rules configurations future Fl D models number people have suggested no need new class since 35cm class would accomplish same thing Whether valid point seeing 35cm models break 25 minutes blimp hangars Indoor Week 1982 week June 13-20 1982 will Indoor Week West Baden week begins abigClass AAAA-type Indoor meet jointly sponsored National Free Flight Society NFFS National Indoor Model Airplane Society NIMAS Illinois Model Aero Club IMAC Chicago Aeronuts contest will feature 14 model classes both formal AMA events nonAMA events such Bostonian two classes Indoor Speed Immediately after meet NIMAS VITNART meet will begin III World Peanut Gran Prix intertwined Gran Prix will run 24 hours continuously beginning 8 pm June 18 VIINART events will share flying space during June 19 Part fun festivities include three banquets contest cant get fill Indoor flying week youll never make details contact Bud Tenni PO Box 545 Richardson TX 75080 FF Old-Timers/Haught Continued page 69 something under 100 psi typically about 100 strokes pump Starting engine consists opening air valve sounds interesting ready challenge constructing own compressed air engine drop line Bert Pond 128 Warren Terrace Long Meadow MA 01106 Bert Dean Compressed-Air Engines has plans over 25 different engines well informa tive articles tank construction CA flying general Prices reasonable thought tinkering cutting filing soldering slows down Bert has limited quantity famous Hoosier Whirlwind threecylinder radials available complete tank ready hum Hoosier Whirlwind has engine beat since 1929 popular today SAM Champs compressed-air event promoted sponsored Tim Banaszak secretary-treasurer SAM engine paired up Hobart July 1982 163 writing advertisers meRtion read about Model Aviation SILK ~ OiScOuNtS ON $495/YD 50 YD ROLLS RedYellow Rool Blue Fine Qualily Model Building Any Lengtf Max 50 Yd SILK COVERS BEST LIGHT- STRONG- ECONOMICAL SHIPPING 0050 FOREIGN 150/ ORDER Id RES Add 4% BROWNSELL FLAG B DECAL CO 121 LAUREL ROAD NEW CITY NY 914-634-850010956 ZEP No 372 Neighvion$500 RC Low-wing sport flier 1AA-power 4-ch No 373 Cassutt II$475 CL Profile Stunter 35-power Flaps No 374 Marissa$300 FF Rubber-powered sportster Golden Age tradition No131Gee Bee Model Y 40-powered RC stood-off scale ose great old-time raters$500 No168Simitar RC spectacolar flyiog wing 15 oose moucted tractor 300 No225Ole Reliable BC 70 versioc 38 old rioter REM cootrols 19- 25 S425 No239Blue Birds ffC Ken Willords formatioc plane 4-ch tO No253Mitchell B-25 BC 4 ft rA 1mw Ace foam pacels Well-behaoetl 0 No259chambermaid FE Bill Heon S soperlation robber-powered scale wrocer 0 No260Waco Costom Cabin BC Don Srulls scaler fot 1 5-20 REM cootrols$400 No262Crashmaster CL Crash-proof traroer 2 sizes 15-30 aed 35 40$125 No291Cap 20 40-powered scale BC Freech aerobatic plane Low wieg tail dragger 2 sheets 0 No299GeeBee Sr Sportster BC irscale Haffke 91 power Prototype spao 30 ft 2 rsheets$1175 No302Mini F-iS BC Sarpolos 048 dacted foe sport flier 2 CE Balsa wings tail lose structure $275 No307Pegasus BC Watson s yaot seper sarlplane features flaps spoilers T tail 186 wrngspuo$675 No309SuperBrigadier BC0oc Mathews opdateoftheS0slaoorrte Eusyflyroq3-ch 19-25-power $475 No3101930 Fleet Biplane BC Sport Scale 35- 40 4-ch Wrngspao 56 io 1/6 scale Two sheets $625 No314Drake II- BC Kee Willards flyrog boat 3-ch 15-power Ply land reteoouble gear $3 75 No317Schweizer TG3-A RC Sport Scale Sail place Jack Hiner has 11 ft spae 3-cE Two sheets$1200 No 321TC Two- CL Sport Stoot twro 20s features tricycle gear profile fuselage Sarpolus$425 No 322Church Midwing BC r-scale Roseostock 60-power Prototype spans 26 ft 2 sheets$1000 No 323Super Voodoo CL Fast Combat Joho Jo featores berlt-up wing last constructrue wrosi$3 00 No 325Commodore BC Teoaco-class Old-Timer Golan updates Shereshaws classic 3-cE 29-power2 oh$1000 No 326Taylor Cub BC Ooo Srulls Schoolyard-Scale 048s 2-3 ch Spans 50 in$350 No 328BristolScoueDBC lltaschs PrecisionScale rOizelspan73 0 bipelor81 power4 sheets$1650 No 330Stitchin BC Raodolpbs adoaoced trainer 4-ch. 10- 15-power Variable stability leatores$3 75 No 332Zephyr BC Small 2-cS glider hand laanch tow thermal slope soaring$200 No 335Sopwith Dolphin- FE BrIl Noonues Jumbo- Rubber scale thrs great WW -orotage biplane $1 75 No 337Super Akin-i Chips BC Scale-like stuoter 5-ch 1 smoke calve 40-power 2 sheets $700 No 338Rearwin Jr BC Doc Mathews Sport Scale 4-eb aod 40-power Monoplaoe. $525 No 340Mossie SCooter CL Twio 35-powered semi-scale bused oo lamoos WW II Mongerto bomber $400 No 341Brown B-2BC Scale-like sport flier 4-cS. 1 9-28-power Race Oaickee hot 25$500 No 342Crosswind BC Bill Eoaos semesarlplaoe 3-cE 1 g-power$3 50 No 343Wasp VI- FF Mike Stops Nato-winnieg Outdoor HLO $1 00 No 344Misty CL irA Scale Racer Class II Also fly Moose lest sport $1 00 No 346La JolitaCL aA Scale Racer Class II also sport Mouse $1 00 No 346Rieets CL irA Scale Racer Class II also sport MouseSi 00 No 347Space Shuttle BC Sport-Scale glider 2-ch luonch mother plane $1 75 No 346Onestep BC Trainer has cery lorgiong flying qualities 3-ch. 10-25 power $425 No 350Electric Spiffire BC Eon Scale 15/25 electric 20/30 glow 3-ch spans B ft $750 No 351Dakota Grande BC Easy-flying bipe 60-power 4-ch. scaled-up 1850 EF $625 No 362Waltzing Matilda FE Wakefield Rubber placed 2nd 1875 FE Champs Si 75 No 353Excitation CL Sleek 46-powered super-Steerer contest-proven No 354Merlyn BC 0 ant 155-in spun Sailplane uses 3 BC channels $750 No 355Santos-Dumontl4-bis RCSport-Scalecaeardbipelor 15-power 3-ch spans 56 2 sheets$575 No 356Maule Lunar Rocket BC rScale spans 925 iv 5-cE flaps 12 cu engine$1200 No 357SE-5 CL Sport-Scale irA power Biplane WW I-type $200 No 368Pieces EF Inctoor Easy B Rubber-power contest-winner W Van Oninder $1 00 No 359Black Widow BC Fun-Scale twin two lOs aod 4-ch BC spans SB WW II eight fighter $675 No 360Dragon CL Slow Combat winner has foam wing uses 36-power $500 No 361Electric Country Boy EF Record-holding duration craft 02 motor $200 No 362Supercat BC Half-A Pylon Racer/sport flier Aileron elevator control Eoam wing $200 No 363Tiger Rag CL Sport Stunrer biplane 36-pomer No 364Neutron Star BC Sleek 40-size Pattern fliorwith tail draggerretracts enclosed pipe built-up $525 No 365Seamaster BC Willard s 40-size flying boat for4-ch Strap-on gearmakes rtalandplaeei 2 sheets$11 00 No 366Truant FE Pert all-balsa beginners sport model 020-power $225 No 367P-39 Airacobra CL Sport Scale uses water-cooled 45 engine mounted alt eetensioe shaft $1275 No 368Space Shuttle II BC Larger improved oersion Hun glider 3-ch$550 No 369Super Star CL Semi-scale Stooter 35-power Easy build has contest-proven capability$5 50 No 370CAP-21 BC Oiant Scale French aerobatic craft spans 7rr ft Osadra power 2 sheets doe$1400 No 371StratoStreak BC Old-Timer oersion Caramis famous 41 FE design itA power 2-ch Circle numberss plans wish order 131168225239 285291299302 323325326328 342343344345 354355356357 253259260 262269278 282 307309310314317321322 330332335337338340341 346347348350351352353 358359360361362363364 365366367368369370371372373 374 Please print carefully Enclosed $ _______________ NAM F STREET CITY cabin model will amaze friends terrorize competition Bert has plans over 15 designs Join fun build air plane Update John Morrell Simplex Miniature En gines 143 Richmond St. El Segundo CA 90245 reports work progressing new Hornet 19 familiar quality workmanship Simplex 25 will disappointed Hornet Homet design calls intake pipe bypass brazed machined steel cylinder process utilizing pure copper braze takes place hydrogen-fired furnace 20000 F However get good joint parts must fit within 003 inch spot-welded place before go furnace Brazing has tendency warp cylinders requiring final honing after braze operation Glass-bead blasting cadmium plating complete operation As Simplex no castings Hornet aluminum parts machined Timer housings produced computer-controlled milling machine fuel tank covers machined just few examples care going production engine John producing 230 engines batch 158 already sold Delivery finished engines scheduled begin May engine has hands SAM Competition Committee two members have granted approval third member still evaluating No problems anticipated Com petition fliers will soon have new Class engine available DTs revisited Since last discussion de thermalizers few obscure methods have brought attention unique varia tionof pop-up stab system designed Bob Buragas system models having stab near bottom fuselage called pop-around type requires pivot trailing edge stab actuation leading edge released downward allowing stab pop around behind model being retained its trailing edge disturbs glide system would effective wonder about regulating descent con ventional pop-up system rate descent can regulated degree pop-up Forty-five degrees about right will increase rate less will decrease Too little pop-up causes spinning too high rate produces damage usually form top wing spar failure Another system rudder-deflection de thermalizer induces tight turning often results spiral dives spins Could hazardous models health final type drogue system deploys panels similar dive brakes sides top fuselage typically hinge rear pop outward create excessive drag would interesting experiment particularly models deep center-mounted stabilizer would enjoy hearing experiences unique dethermalizers Clarence Haught Rt 5 Box 16 CoeurdAlene ID 83814 164 Model Aviation STATE __________________________________ ZIP_____________ Price includes first-class postage Send check money order payable Model Aviattort AMA 815 Fifteenth St NW washington OC 20005 Full-size Plan List Available complete listing plans previously published magazine through No 364 may obtained free charge writing enclose stamped pre-addressed business size envelope Model Aitiofl 815 FIf teenth St NIA washington DC 20005
Edition: Model Aviation - 1982/07
Page Numbers: 69, 163, 164
Free Flight OLD- TIMER Clarence Haught AIR PLANES emphasis hack basics hear about today makes wonden compressed-air engines CO-2 engines have mushroomed popularity within past five years types power plants low noise ease operation no messy oil make aeromodeling gentle sport Back late Twenties compressed-air motors engines quite popular articles plans published giving detailed structions enable modelers produce own engines home Designs varied singie-cylinder oscillating opposed twins three four five six-cylinder radials plus few rotary types thrown variety types designed around readily-avail able materials Fishing rod ferrule joints sometimes made piston cylinder sets hand honing lapping Others used brass tubing soldered together make piston cylinder sets Compressed-air engine design simple enough needed besides piston cylinder combination crankshaft convert linear motion pistons rotary motion drive prop connecting rod links two together An air supply directed cylinder turn rotary valve part ofor driven crankshaft provisions exhaust air end power stroke An exhaust port uncovered piston suffices cases crankshafts enclosedbeing merely sup ported couple bushings bearings Fuel stored cylindrical tank perhaps three inches diameter convenient length old days tanks spirally-rolled brass shim stick 003 006 inch thick soldered Some wrapped wire safety precaution Today tanks made carefully joining aluminum beverage cans epoxy glue Flight preparation consists pumping up pressure time-honored tire pump Continued page 163 July 198269 oo uiigstreei reauy tor avaimeome iiying Site witH Orwick 64-powered Powerhouseit can fly either FF RC good FF sites getting harder find idea has merit Mitcfl Post tine-tunesthe needle ot hIS L510fl9 1U MOOI ieria design followers due its good performance Delongs also have loyal followingtheyre rugged heavy put out good power Photo Dick Stouffer Dave Stottrefuels compressed-air model Rocky Hill CT Usual fuel load 100 strokes pumpgood exercise hot sum merday Its easy clean up model after flight just wipe sweat away Bockius photo Hoosier Whirlwind 3-cylinder compressed air motor Its permanently mounted brass air tank Air filler air control valve visible dome-like tank end swings large high-pitch rubber-type propeller Want Theyre available Bert Pond ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX AMA Membership82 Ace RC Inc24 Aerolite Products150 Aeromarine Interprizes152 Aerotrend Products124 Air Design Airtronics Inside Front Cover 37 73 Americas Hobby Center Inc9 Andrews Aircraft Model Co119 Applied Design Corp151 BK Products159 Bantam Precision Products84 Richard G Barron157 Bavarian Precision Products Inc10 Behrens Plan Service149 Black Hawk Models157 Boynton & Associates154 Brownsell Flag & Decal163 Byron Originals25 76 California Model Imports10 Carolina-Taffinder128 Charlies R/C Goodies14 Circus Hobbies Inc136-141 George Clapp158 Columbia Model Crafts25 Consumers Hobby Corp126-1 27 Contempo Enterprises129 Coverite143 Cox Hobbies77 Jim Crockett Replicas124 DA Enterprises152 DGM Industries148 Davey Sy stems Corp134 Du-Bro Products Inc18 Dynathrust Props Inc163 E & R Hobbies132 Eastcraft Specialty Products161 Electronic Servicenter146 Addis Elmore162 Enya Model Products Co19 FAI Model Supply Inc132 146 FHS Supply Inc147 Flightline Shirts124 Flyline Models160 Fourmost Products156 Fox Manufacturing Co125 Full Command Systems147 Fults Tooling148 Futaba Corp America29 Futurfilte149 Gator R/C Products153 Gemini Models Inc153 Gibbs Hobby & Research160 Carl Goldberg Models Inc15 Gorham Model Products151 Great Lakes Model & Mold Co119 Great Planes Models Mfg Co2 Grish Brothers142 161 Hall Fame Giant Plane Flyln158 Hardware Systems134 Hayes Products47 DR Higgins Associates158 Hobby Barn 120-123 Hobby Capitol Distributors8 Hobby Hideaway161 Hobby Horn125 Hobby Lobby International4-7 Hobby Radio Shop162 Hobby Shack128 Homer Sales Inc28 Indian City RC Club134 Indy R/C Sales Inc130-131 J5 Enterprises156 K & B Manufacturing Co132 K & S Engineering74 Kraft R/C Electronics154 Kraft Systems51 Kress Technology132 Kustom Kraftsmanship128 LTA Systems162 Left Bank R/C Distributors150 Litco Systems11 Lone Star Models159 MACS Products132 Majestic Models124 Maxair Sports49 McDaniel R/C Service74 Jim Messers Quality Products128 Midwest Products Company128 Miniature Aircraft Supply133 Model Engineering Norwalk14 Model Merchant143 Model Rectifier Corp side Back Cover Modelmania153 Mutchiers144-145 Jerry Nelson & Co156 PARCS Club162 Pacific Sailpianes75 Peck-Polymers158 Pica Products153 Dave Platt Models Inc75 Plaza Hobbycraft148 Prop Shop24 RAC Products159 RF Enterprises129 RJL Industries156 RLF Products146 Repla-Tech International150 Roush Mfg Co157 Saf-Flite Models Sailplane Factory Satellite City Sheldons Hobby Shop Sig Manufacturing Co Bob Smith R/C Aircraft Sullivan Products rwings Tatone Products LR Taylor & Co Technopower II Inc. Top Flite Models r Hobbies Inc Twinn-K Inc US Quadra WE Technical Services Waterlines Williams Brothers Windsor Propeller Co World Engines - 150 147 24 13 - 148 135 84 - 28 - - 155 - 76 153 146 83 76 161 Back Cover CA Zaic Co119 Zenith Aviation Books2337 Nick Ziroli Models84 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX FAI FID rules instituting special 50cm class explore possible rules configurations future Fl D models number people have suggested no need new class since 35cm class would accomplish same thing Whether valid point seeing 35cm models break 25 minutes blimp hangars Indoor Week 1982 week June 13-20 1982 will Indoor Week West Baden week begins abigClass AAAA-type Indoor meet jointly sponsored National Free Flight Society NFFS National Indoor Model Airplane Society NIMAS Illinois Model Aero Club IMAC Chicago Aeronuts contest will feature 14 model classes both formal AMA events nonAMA events such Bostonian two classes Indoor Speed Immediately after meet NIMAS VITNART meet will begin III World Peanut Gran Prix intertwined Gran Prix will run 24 hours continuously beginning 8 pm June 18 VIINART events will share flying space during June 19 Part fun festivities include three banquets contest cant get fill Indoor flying week youll never make details contact Bud Tenni PO Box 545 Richardson TX 75080 FF Old-Timers/Haught Continued page 69 something under 100 psi typically about 100 strokes pump Starting engine consists opening air valve sounds interesting ready challenge constructing own compressed air engine drop line Bert Pond 128 Warren Terrace Long Meadow MA 01106 Bert Dean Compressed-Air Engines has plans over 25 different engines well informa tive articles tank construction CA flying general Prices reasonable thought tinkering cutting filing soldering slows down Bert has limited quantity famous Hoosier Whirlwind threecylinder radials available complete tank ready hum Hoosier Whirlwind has engine beat since 1929 popular today SAM Champs compressed-air event promoted sponsored Tim Banaszak secretary-treasurer SAM engine paired up Hobart July 1982 163 writing advertisers meRtion read about Model Aviation SILK ~ OiScOuNtS ON $495/YD 50 YD ROLLS RedYellow Rool Blue Fine Qualily Model Building Any Lengtf Max 50 Yd SILK COVERS BEST LIGHT- STRONG- ECONOMICAL SHIPPING 0050 FOREIGN 150/ ORDER Id RES Add 4% BROWNSELL FLAG B DECAL CO 121 LAUREL ROAD NEW CITY NY 914-634-850010956 ZEP No 372 Neighvion$500 RC Low-wing sport flier 1AA-power 4-ch No 373 Cassutt II$475 CL Profile Stunter 35-power Flaps No 374 Marissa$300 FF Rubber-powered sportster Golden Age tradition No131Gee Bee Model Y 40-powered RC stood-off scale ose great old-time raters$500 No168Simitar RC spectacolar flyiog wing 15 oose moucted tractor 300 No225Ole Reliable BC 70 versioc 38 old rioter REM cootrols 19- 25 S425 No239Blue Birds ffC Ken Willords formatioc plane 4-ch tO No253Mitchell B-25 BC 4 ft rA 1mw Ace foam pacels Well-behaoetl 0 No259chambermaid FE Bill Heon S soperlation robber-powered scale wrocer 0 No260Waco Costom Cabin BC Don Srulls scaler fot 1 5-20 REM cootrols$400 No262Crashmaster CL Crash-proof traroer 2 sizes 15-30 aed 35 40$125 No291Cap 20 40-powered scale BC Freech aerobatic plane Low wieg tail dragger 2 sheets 0 No299GeeBee Sr Sportster BC irscale Haffke 91 power Prototype spao 30 ft 2 rsheets$1175 No302Mini F-iS BC Sarpolos 048 dacted foe sport flier 2 CE Balsa wings tail lose structure $275 No307Pegasus BC Watson s yaot seper sarlplane features flaps spoilers T tail 186 wrngspuo$675 No309SuperBrigadier BC0oc Mathews opdateoftheS0slaoorrte Eusyflyroq3-ch 19-25-power $475 No3101930 Fleet Biplane BC Sport Scale 35- 40 4-ch Wrngspao 56 io 1/6 scale Two sheets $625 No314Drake II- BC Kee Willards flyrog boat 3-ch 15-power Ply land reteoouble gear $3 75 No317Schweizer TG3-A RC Sport Scale Sail place Jack Hiner has 11 ft spae 3-cE Two sheets$1200 No 321TC Two- CL Sport Stoot twro 20s features tricycle gear profile fuselage Sarpolus$425 No 322Church Midwing BC r-scale Roseostock 60-power Prototype spans 26 ft 2 sheets$1000 No 323Super Voodoo CL Fast Combat Joho Jo featores berlt-up wing last constructrue wrosi$3 00 No 325Commodore BC Teoaco-class Old-Timer Golan updates Shereshaws classic 3-cE 29-power2 oh$1000 No 326Taylor Cub BC Ooo Srulls Schoolyard-Scale 048s 2-3 ch Spans 50 in$350 No 328BristolScoueDBC lltaschs PrecisionScale rOizelspan73 0 bipelor81 power4 sheets$1650 No 330Stitchin BC Raodolpbs adoaoced trainer 4-ch. 10- 15-power Variable stability leatores$3 75 No 332Zephyr BC Small 2-cS glider hand laanch tow thermal slope soaring$200 No 335Sopwith Dolphin- FE BrIl Noonues Jumbo- Rubber scale thrs great WW -orotage biplane $1 75 No 337Super Akin-i Chips BC Scale-like stuoter 5-ch 1 smoke calve 40-power 2 sheets $700 No 338Rearwin Jr BC Doc Mathews Sport Scale 4-eb aod 40-power Monoplaoe. $525 No 340Mossie SCooter CL Twio 35-powered semi-scale bused oo lamoos WW II Mongerto bomber $400 No 341Brown B-2BC Scale-like sport flier 4-cS. 1 9-28-power Race Oaickee hot 25$500 No 342Crosswind BC Bill Eoaos semesarlplaoe 3-cE 1 g-power$3 50 No 343Wasp VI- FF Mike Stops Nato-winnieg Outdoor HLO $1 00 No 344Misty CL irA Scale Racer Class II Also fly Moose lest sport $1 00 No 346La JolitaCL aA Scale Racer Class II also sport Mouse $1 00 No 346Rieets CL irA Scale Racer Class II also sport MouseSi 00 No 347Space Shuttle BC Sport-Scale glider 2-ch luonch mother plane $1 75 No 346Onestep BC Trainer has cery lorgiong flying qualities 3-ch. 10-25 power $425 No 350Electric Spiffire BC Eon Scale 15/25 electric 20/30 glow 3-ch spans B ft $750 No 351Dakota Grande BC Easy-flying bipe 60-power 4-ch. scaled-up 1850 EF $625 No 362Waltzing Matilda FE Wakefield Rubber placed 2nd 1875 FE Champs Si 75 No 353Excitation CL Sleek 46-powered super-Steerer contest-proven No 354Merlyn BC 0 ant 155-in spun Sailplane uses 3 BC channels $750 No 355Santos-Dumontl4-bis RCSport-Scalecaeardbipelor 15-power 3-ch spans 56 2 sheets$575 No 356Maule Lunar Rocket BC rScale spans 925 iv 5-cE flaps 12 cu engine$1200 No 357SE-5 CL Sport-Scale irA power Biplane WW I-type $200 No 368Pieces EF Inctoor Easy B Rubber-power contest-winner W Van Oninder $1 00 No 359Black Widow BC Fun-Scale twin two lOs aod 4-ch BC spans SB WW II eight fighter $675 No 360Dragon CL Slow Combat winner has foam wing uses 36-power $500 No 361Electric Country Boy EF Record-holding duration craft 02 motor $200 No 362Supercat BC Half-A Pylon Racer/sport flier Aileron elevator control Eoam wing $200 No 363Tiger Rag CL Sport Stunrer biplane 36-pomer No 364Neutron Star BC Sleek 40-size Pattern fliorwith tail draggerretracts enclosed pipe built-up $525 No 365Seamaster BC Willard s 40-size flying boat for4-ch Strap-on gearmakes rtalandplaeei 2 sheets$11 00 No 366Truant FE Pert all-balsa beginners sport model 020-power $225 No 367P-39 Airacobra CL Sport Scale uses water-cooled 45 engine mounted alt eetensioe shaft $1275 No 368Space Shuttle II BC Larger improved oersion Hun glider 3-ch$550 No 369Super Star CL Semi-scale Stooter 35-power Easy build has contest-proven capability$5 50 No 370CAP-21 BC Oiant Scale French aerobatic craft spans 7rr ft Osadra power 2 sheets doe$1400 No 371StratoStreak BC Old-Timer oersion Caramis famous 41 FE design itA power 2-ch Circle numberss plans wish order 131168225239 285291299302 323325326328 342343344345 354355356357 253259260 262269278 282 307309310314317321322 330332335337338340341 346347348350351352353 358359360361362363364 365366367368369370371372373 374 Please print carefully Enclosed $ _______________ NAM F STREET CITY cabin model will amaze friends terrorize competition Bert has plans over 15 designs Join fun build air plane Update John Morrell Simplex Miniature En gines 143 Richmond St. El Segundo CA 90245 reports work progressing new Hornet 19 familiar quality workmanship Simplex 25 will disappointed Hornet Homet design calls intake pipe bypass brazed machined steel cylinder process utilizing pure copper braze takes place hydrogen-fired furnace 20000 F However get good joint parts must fit within 003 inch spot-welded place before go furnace Brazing has tendency warp cylinders requiring final honing after braze operation Glass-bead blasting cadmium plating complete operation As Simplex no castings Hornet aluminum parts machined Timer housings produced computer-controlled milling machine fuel tank covers machined just few examples care going production engine John producing 230 engines batch 158 already sold Delivery finished engines scheduled begin May engine has hands SAM Competition Committee two members have granted approval third member still evaluating No problems anticipated Com petition fliers will soon have new Class engine available DTs revisited Since last discussion de thermalizers few obscure methods have brought attention unique varia tionof pop-up stab system designed Bob Buragas system models having stab near bottom fuselage called pop-around type requires pivot trailing edge stab actuation leading edge released downward allowing stab pop around behind model being retained its trailing edge disturbs glide system would effective wonder about regulating descent con ventional pop-up system rate descent can regulated degree pop-up Forty-five degrees about right will increase rate less will decrease Too little pop-up causes spinning too high rate produces damage usually form top wing spar failure Another system rudder-deflection de thermalizer induces tight turning often results spiral dives spins Could hazardous models health final type drogue system deploys panels similar dive brakes sides top fuselage typically hinge rear pop outward create excessive drag would interesting experiment particularly models deep center-mounted stabilizer would enjoy hearing experiences unique dethermalizers Clarence Haught Rt 5 Box 16 CoeurdAlene ID 83814 164 Model Aviation STATE __________________________________ ZIP_____________ Price includes first-class postage Send check money order payable Model Aviattort AMA 815 Fifteenth St NW washington OC 20005 Full-size Plan List Available complete listing plans previously published magazine through No 364 may obtained free charge writing enclose stamped pre-addressed business size envelope Model Aitiofl 815 FIf teenth St NIA washington DC 20005
Edition: Model Aviation - 1982/07
Page Numbers: 69, 163, 164
Free Flight OLD- TIMER Clarence Haught AIR PLANES emphasis hack basics hear about today makes wonden compressed-air engines CO-2 engines have mushroomed popularity within past five years types power plants low noise ease operation no messy oil make aeromodeling gentle sport Back late Twenties compressed-air motors engines quite popular articles plans published giving detailed structions enable modelers produce own engines home Designs varied singie-cylinder oscillating opposed twins three four five six-cylinder radials plus few rotary types thrown variety types designed around readily-avail able materials Fishing rod ferrule joints sometimes made piston cylinder sets hand honing lapping Others used brass tubing soldered together make piston cylinder sets Compressed-air engine design simple enough needed besides piston cylinder combination crankshaft convert linear motion pistons rotary motion drive prop connecting rod links two together An air supply directed cylinder turn rotary valve part ofor driven crankshaft provisions exhaust air end power stroke An exhaust port uncovered piston suffices cases crankshafts enclosedbeing merely sup ported couple bushings bearings Fuel stored cylindrical tank perhaps three inches diameter convenient length old days tanks spirally-rolled brass shim stick 003 006 inch thick soldered Some wrapped wire safety precaution Today tanks made carefully joining aluminum beverage cans epoxy glue Flight preparation consists pumping up pressure time-honored tire pump Continued page 163 July 198269 oo uiigstreei reauy tor avaimeome iiying Site witH Orwick 64-powered Powerhouseit can fly either FF RC good FF sites getting harder find idea has merit Mitcfl Post tine-tunesthe needle ot hIS L510fl9 1U MOOI ieria design followers due its good performance Delongs also have loyal followingtheyre rugged heavy put out good power Photo Dick Stouffer Dave Stottrefuels compressed-air model Rocky Hill CT Usual fuel load 100 strokes pumpgood exercise hot sum merday Its easy clean up model after flight just wipe sweat away Bockius photo Hoosier Whirlwind 3-cylinder compressed air motor Its permanently mounted brass air tank Air filler air control valve visible dome-like tank end swings large high-pitch rubber-type propeller Want Theyre available Bert Pond ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX AMA Membership82 Ace RC Inc24 Aerolite Products150 Aeromarine Interprizes152 Aerotrend Products124 Air Design Airtronics Inside Front Cover 37 73 Americas Hobby Center Inc9 Andrews Aircraft Model Co119 Applied Design Corp151 BK Products159 Bantam Precision Products84 Richard G Barron157 Bavarian Precision Products Inc10 Behrens Plan Service149 Black Hawk Models157 Boynton & Associates154 Brownsell Flag & Decal163 Byron Originals25 76 California Model Imports10 Carolina-Taffinder128 Charlies R/C Goodies14 Circus Hobbies Inc136-141 George Clapp158 Columbia Model Crafts25 Consumers Hobby Corp126-1 27 Contempo Enterprises129 Coverite143 Cox Hobbies77 Jim Crockett Replicas124 DA Enterprises152 DGM Industries148 Davey Sy stems Corp134 Du-Bro Products Inc18 Dynathrust Props Inc163 E & R Hobbies132 Eastcraft Specialty Products161 Electronic Servicenter146 Addis Elmore162 Enya Model Products Co19 FAI Model Supply Inc132 146 FHS Supply Inc147 Flightline Shirts124 Flyline Models160 Fourmost Products156 Fox Manufacturing Co125 Full Command Systems147 Fults Tooling148 Futaba Corp America29 Futurfilte149 Gator R/C Products153 Gemini Models Inc153 Gibbs Hobby & Research160 Carl Goldberg Models Inc15 Gorham Model Products151 Great Lakes Model & Mold Co119 Great Planes Models Mfg Co2 Grish Brothers142 161 Hall Fame Giant Plane Flyln158 Hardware Systems134 Hayes Products47 DR Higgins Associates158 Hobby Barn 120-123 Hobby Capitol Distributors8 Hobby Hideaway161 Hobby Horn125 Hobby Lobby International4-7 Hobby Radio Shop162 Hobby Shack128 Homer Sales Inc28 Indian City RC Club134 Indy R/C Sales Inc130-131 J5 Enterprises156 K & B Manufacturing Co132 K & S Engineering74 Kraft R/C Electronics154 Kraft Systems51 Kress Technology132 Kustom Kraftsmanship128 LTA Systems162 Left Bank R/C Distributors150 Litco Systems11 Lone Star Models159 MACS Products132 Majestic Models124 Maxair Sports49 McDaniel R/C Service74 Jim Messers Quality Products128 Midwest Products Company128 Miniature Aircraft Supply133 Model Engineering Norwalk14 Model Merchant143 Model Rectifier Corp side Back Cover Modelmania153 Mutchiers144-145 Jerry Nelson & Co156 PARCS Club162 Pacific Sailpianes75 Peck-Polymers158 Pica Products153 Dave Platt Models Inc75 Plaza Hobbycraft148 Prop Shop24 RAC Products159 RF Enterprises129 RJL Industries156 RLF Products146 Repla-Tech International150 Roush Mfg Co157 Saf-Flite Models Sailplane Factory Satellite City Sheldons Hobby Shop Sig Manufacturing Co Bob Smith R/C Aircraft Sullivan Products rwings Tatone Products LR Taylor & Co Technopower II Inc. Top Flite Models r Hobbies Inc Twinn-K Inc US Quadra WE Technical Services Waterlines Williams Brothers Windsor Propeller Co World Engines - 150 147 24 13 - 148 135 84 - 28 - - 155 - 76 153 146 83 76 161 Back Cover CA Zaic Co119 Zenith Aviation Books2337 Nick Ziroli Models84 ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX ADVERTISERS INDEX FAI FID rules instituting special 50cm class explore possible rules configurations future Fl D models number people have suggested no need new class since 35cm class would accomplish same thing Whether valid point seeing 35cm models break 25 minutes blimp hangars Indoor Week 1982 week June 13-20 1982 will Indoor Week West Baden week begins abigClass AAAA-type Indoor meet jointly sponsored National Free Flight Society NFFS National Indoor Model Airplane Society NIMAS Illinois Model Aero Club IMAC Chicago Aeronuts contest will feature 14 model classes both formal AMA events nonAMA events such Bostonian two classes Indoor Speed Immediately after meet NIMAS VITNART meet will begin III World Peanut Gran Prix intertwined Gran Prix will run 24 hours continuously beginning 8 pm June 18 VIINART events will share flying space during June 19 Part fun festivities include three banquets contest cant get fill Indoor flying week youll never make details contact Bud Tenni PO Box 545 Richardson TX 75080 FF Old-Timers/Haught Continued page 69 something under 100 psi typically about 100 strokes pump Starting engine consists opening air valve sounds interesting ready challenge constructing own compressed air engine drop line Bert Pond 128 Warren Terrace Long Meadow MA 01106 Bert Dean Compressed-Air Engines has plans over 25 different engines well informa tive articles tank construction CA flying general Prices reasonable thought tinkering cutting filing soldering slows down Bert has limited quantity famous Hoosier Whirlwind threecylinder radials available complete tank ready hum Hoosier Whirlwind has engine beat since 1929 popular today SAM Champs compressed-air event promoted sponsored Tim Banaszak secretary-treasurer SAM engine paired up Hobart July 1982 163 writing advertisers meRtion read about Model Aviation SILK ~ OiScOuNtS ON $495/YD 50 YD ROLLS RedYellow Rool Blue Fine Qualily Model Building Any Lengtf Max 50 Yd SILK COVERS BEST LIGHT- STRONG- ECONOMICAL SHIPPING 0050 FOREIGN 150/ ORDER Id RES Add 4% BROWNSELL FLAG B DECAL CO 121 LAUREL ROAD NEW CITY NY 914-634-850010956 ZEP No 372 Neighvion$500 RC Low-wing sport flier 1AA-power 4-ch No 373 Cassutt II$475 CL Profile Stunter 35-power Flaps No 374 Marissa$300 FF Rubber-powered sportster Golden Age tradition No131Gee Bee Model Y 40-powered RC stood-off scale ose great old-time raters$500 No168Simitar RC spectacolar flyiog wing 15 oose moucted tractor 300 No225Ole Reliable BC 70 versioc 38 old rioter REM cootrols 19- 25 S425 No239Blue Birds ffC Ken Willords formatioc plane 4-ch tO No253Mitchell B-25 BC 4 ft rA 1mw Ace foam pacels Well-behaoetl 0 No259chambermaid FE Bill Heon S soperlation robber-powered scale wrocer 0 No260Waco Costom Cabin BC Don Srulls scaler fot 1 5-20 REM cootrols$400 No262Crashmaster CL Crash-proof traroer 2 sizes 15-30 aed 35 40$125 No291Cap 20 40-powered scale BC Freech aerobatic plane Low wieg tail dragger 2 sheets 0 No299GeeBee Sr Sportster BC irscale Haffke 91 power Prototype spao 30 ft 2 rsheets$1175 No302Mini F-iS BC Sarpolos 048 dacted foe sport flier 2 CE Balsa wings tail lose structure $275 No307Pegasus BC Watson s yaot seper sarlplane features flaps spoilers T tail 186 wrngspuo$675 No309SuperBrigadier BC0oc Mathews opdateoftheS0slaoorrte Eusyflyroq3-ch 19-25-power $475 No3101930 Fleet Biplane BC Sport Scale 35- 40 4-ch Wrngspao 56 io 1/6 scale Two sheets $625 No314Drake II- BC Kee Willards flyrog boat 3-ch 15-power Ply land reteoouble gear $3 75 No317Schweizer TG3-A RC Sport Scale Sail place Jack Hiner has 11 ft spae 3-cE Two sheets$1200 No 321TC Two- CL Sport Stoot twro 20s features tricycle gear profile fuselage Sarpolus$425 No 322Church Midwing BC r-scale Roseostock 60-power Prototype spans 26 ft 2 sheets$1000 No 323Super Voodoo CL Fast Combat Joho Jo featores berlt-up wing last constructrue wrosi$3 00 No 325Commodore BC Teoaco-class Old-Timer Golan updates Shereshaws classic 3-cE 29-power2 oh$1000 No 326Taylor Cub BC Ooo Srulls Schoolyard-Scale 048s 2-3 ch Spans 50 in$350 No 328BristolScoueDBC lltaschs PrecisionScale rOizelspan73 0 bipelor81 power4 sheets$1650 No 330Stitchin BC Raodolpbs adoaoced trainer 4-ch. 10- 15-power Variable stability leatores$3 75 No 332Zephyr BC Small 2-cS glider hand laanch tow thermal slope soaring$200 No 335Sopwith Dolphin- FE BrIl Noonues Jumbo- Rubber scale thrs great WW -orotage biplane $1 75 No 337Super Akin-i Chips BC Scale-like stuoter 5-ch 1 smoke calve 40-power 2 sheets $700 No 338Rearwin Jr BC Doc Mathews Sport Scale 4-eb aod 40-power Monoplaoe. $525 No 340Mossie SCooter CL Twio 35-powered semi-scale bused oo lamoos WW II Mongerto bomber $400 No 341Brown B-2BC Scale-like sport flier 4-cS. 1 9-28-power Race Oaickee hot 25$500 No 342Crosswind BC Bill Eoaos semesarlplaoe 3-cE 1 g-power$3 50 No 343Wasp VI- FF Mike Stops Nato-winnieg Outdoor HLO $1 00 No 344Misty CL irA Scale Racer Class II Also fly Moose lest sport $1 00 No 346La JolitaCL aA Scale Racer Class II also sport Mouse $1 00 No 346Rieets CL irA Scale Racer Class II also sport MouseSi 00 No 347Space Shuttle BC Sport-Scale glider 2-ch luonch mother plane $1 75 No 346Onestep BC Trainer has cery lorgiong flying qualities 3-ch. 10-25 power $425 No 350Electric Spiffire BC Eon Scale 15/25 electric 20/30 glow 3-ch spans B ft $750 No 351Dakota Grande BC Easy-flying bipe 60-power 4-ch. scaled-up 1850 EF $625 No 362Waltzing Matilda FE Wakefield Rubber placed 2nd 1875 FE Champs Si 75 No 353Excitation CL Sleek 46-powered super-Steerer contest-proven No 354Merlyn BC 0 ant 155-in spun Sailplane uses 3 BC channels $750 No 355Santos-Dumontl4-bis RCSport-Scalecaeardbipelor 15-power 3-ch spans 56 2 sheets$575 No 356Maule Lunar Rocket BC rScale spans 925 iv 5-cE flaps 12 cu engine$1200 No 357SE-5 CL Sport-Scale irA power Biplane WW I-type $200 No 368Pieces EF Inctoor Easy B Rubber-power contest-winner W Van Oninder $1 00 No 359Black Widow BC Fun-Scale twin two lOs aod 4-ch BC spans SB WW II eight fighter $675 No 360Dragon CL Slow Combat winner has foam wing uses 36-power $500 No 361Electric Country Boy EF Record-holding duration craft 02 motor $200 No 362Supercat BC Half-A Pylon Racer/sport flier Aileron elevator control Eoam wing $200 No 363Tiger Rag CL Sport Stunrer biplane 36-pomer No 364Neutron Star BC Sleek 40-size Pattern fliorwith tail draggerretracts enclosed pipe built-up $525 No 365Seamaster BC Willard s 40-size flying boat for4-ch Strap-on gearmakes rtalandplaeei 2 sheets$11 00 No 366Truant FE Pert all-balsa beginners sport model 020-power $225 No 367P-39 Airacobra CL Sport Scale uses water-cooled 45 engine mounted alt eetensioe shaft $1275 No 368Space Shuttle II BC Larger improved oersion Hun glider 3-ch$550 No 369Super Star CL Semi-scale Stooter 35-power Easy build has contest-proven capability$5 50 No 370CAP-21 BC Oiant Scale French aerobatic craft spans 7rr ft Osadra power 2 sheets doe$1400 No 371StratoStreak BC Old-Timer oersion Caramis famous 41 FE design itA power 2-ch Circle numberss plans wish order 131168225239 285291299302 323325326328 342343344345 354355356357 253259260 262269278 282 307309310314317321322 330332335337338340341 346347348350351352353 358359360361362363364 365366367368369370371372373 374 Please print carefully Enclosed $ _______________ NAM F STREET CITY cabin model will amaze friends terrorize competition Bert has plans over 15 designs Join fun build air plane Update John Morrell Simplex Miniature En gines 143 Richmond St. El Segundo CA 90245 reports work progressing new Hornet 19 familiar quality workmanship Simplex 25 will disappointed Hornet Homet design calls intake pipe bypass brazed machined steel cylinder process utilizing pure copper braze takes place hydrogen-fired furnace 20000 F However get good joint parts must fit within 003 inch spot-welded place before go furnace Brazing has tendency warp cylinders requiring final honing after braze operation Glass-bead blasting cadmium plating complete operation As Simplex no castings Hornet aluminum parts machined Timer housings produced computer-controlled milling machine fuel tank covers machined just few examples care going production engine John producing 230 engines batch 158 already sold Delivery finished engines scheduled begin May engine has hands SAM Competition Committee two members have granted approval third member still evaluating No problems anticipated Com petition fliers will soon have new Class engine available DTs revisited Since last discussion de thermalizers few obscure methods have brought attention unique varia tionof pop-up stab system designed Bob Buragas system models having stab near bottom fuselage called pop-around type requires pivot trailing edge stab actuation leading edge released downward allowing stab pop around behind model being retained its trailing edge disturbs glide system would effective wonder about regulating descent con ventional pop-up system rate descent can regulated degree pop-up Forty-five degrees about right will increase rate less will decrease Too little pop-up causes spinning too high rate produces damage usually form top wing spar failure Another system rudder-deflection de thermalizer induces tight turning often results spiral dives spins Could hazardous models health final type drogue system deploys panels similar dive brakes sides top fuselage typically hinge rear pop outward create excessive drag would interesting experiment particularly models deep center-mounted stabilizer would enjoy hearing experiences unique dethermalizers Clarence Haught Rt 5 Box 16 CoeurdAlene ID 83814 164 Model Aviation STATE __________________________________ ZIP_____________ Price includes first-class postage Send check money order payable Model Aviattort AMA 815 Fifteenth St NW washington OC 20005 Full-size Plan List Available complete listing plans previously published magazine through No 364 may obtained free charge writing enclose stamped pre-addressed business size envelope Model Aitiofl 815 FIf teenth St NIA washington DC 20005