Radio Control SOA RING Dan Pruss SOAR-CROSS 83 Back July Mich igan International Soaring Society held its second annual cross-country race truly race course although formidable challenge can completed gods good air cooperate Saturday didnt good enough reason schedule such event two days longer Sunday proved planning committee knew what doing Shortly after noon Dennis Chall Brighton RC Club first team two years cross finish line finished 121-mile course hour minute Twenty minutes later Ken Bates Michigan RC Sbcietystill fresh Great Race VIII victory month earlierlopped eleven minutes off Challs time didnt last long Greater Detroit Soaring Hiking Society Mark Wencel covered same 121 miles 31 minutes 17 seconds Rules event allow teams re launch fly part course often contest time permits fre quency per team crowded frequencies pose no problem contestants organizers Chall likes rules because sec See Tom Bloods Metrick admist broadtail hawks Photo Barb Vlasvich ond attempt around course Brighton crew did incredible time 27 minutes 28 seconds win Soar-Cross 83 top five finishers teamsall Michigan t Dennis Chall Brighton RC Club 00:2728 2 Mark Wencel Greater Detroit S&H Society0O:3117 3 Ken Bates Michigan RC SocietyO0:5002 4 David Weatherup Michigan International Soaring Society00:5022 5 Pat Flinn Greater Detroit S&H SocietyO0:5042 Two issues back column featured most-photographed model York F3B World Championships Well model most-photographed winch belonged USA team handiwork Bob Andrews Modesto CA photo shows some features have become trend winch design years long-shaft Ford starter motor has standard winches low costavailability junk yards low $5 auto supply houses about $30made motor affordable no pun intended long-shaft feature natu ral winch since line drum could Interesting hinging features German Dohie kit first 2 photos 1 C show tight-fitting aileron hingewith almost no gap Hard aluminum leading edge aileron provides rigidity allows accurate concave groove built wing TE hinge Itself very clever aluminum tube slotted allow Up/Down deflection smooth close-fitting plug length wood dowel covered Teflon tube inserted end tube threaded fastener screwed plug its free end epoxied wing structure right lathe rudders no-gap hinge pivot actuator stabilator fin lightweight fiberglass shell snuggles around rudders LE rudder itself hinged wIth 2 pinsthe upper just barely visible details text 46 Model Aviation / A / 1 easily slid onto shaft pinned through already-existing hole end shaft setup wasand still popular motor/drumiwinch com bination However heavier Sailplanes scene F3B launching techniques adding strain eon weekend fliers could impose some winch-designers have gone layout seen picture case starter motor still Ford shaft cut down line drum mounted separately two pillow blocks can seen makes compactnarrower anywaywinch importantly eliminates heavy side loads bearing wear starter-motor front plate heart driving mechanism made up drive pulleys belt Bob used Dayco timing pulleys cost motor $3910 vs $3069 timing belt one-to-one ratio motor seems reflect photo does Its chrome-plated winch brake bicycle sprocket brake lever Destaco welding clamp small round T-bar barely seen picture welded T-bar matches spacing cogs brakesimple very effective Parts alone show-stopper came just under $300 labor love Bob wants known hes now going Continued page 143 TOLEDO/84 THIRTIETH ANNUAL RIO EXPOSITION TOLEDO SPORTS ARENA ONE MAIN STREET TOLEDO OHIO Reserve April 6 7 81984 attend worlds greatest radio control mQdel show See latest greatest radio control equipment presented leading manufacturers Talk notable nc personalities have questions answered featuring worlds largest Swap Shops no dealers complete refreshment centers Saturday Night auction raffles complete nc systems accessories acres free parking Bring latest completely finished models display enter competition ex citing awards Competition models will accept during show hours till 10 am Sunday morning no entry fee Complete radio control systems will awarded first second third place winners brand new Microwave Oven will presented lucky winner Best Show Come join us enjoy selves unquestionably worlds greatest radio control model show Open public three great days %h Weak Signals RIO Club PO Box 5772 APRIL 6 7&8 FRIDAY9amto6pm SATURDAY 9amto6pm SUNDAY9amto43Opm Toledo Ohio 43613 February 1984 47 winch flier has everything Bob Andrews Modesto CA loves custommade beit-drive chrome-piated poiishedaiu minum red-framed beauty works Soar-Cross CD Ron Laiinsky sends us photo firat-piace team Brighton RC Ciub L R Dick Ransom chuck Chaii Dennis Chaii Ed Moore pose Dennis original-design cross-country ship apans 160 has unbailasted weight 8 lb fiew 9 ib 4 oz uses Eppier 205 airfoii has rudder/eievator/spoiier controis lutely clean fingerprints may make joint impossible Only tip brazing rod fed flame puddle molten solder well-fitted joint very little rod required helps reduce cost 50000 F flame held spot base metal hole may burned through Melting points commonly-used metals Steel 25000 brass 18000 bronze 16750 copper 19800 zinc 7870 aluminum 12180 F Mi croflame torch shouldnt used join parts larger about I-in X 2-in x /6-in thick Larger parts will conduct heat away too rapidly fuel suply con sumed before brazing temperature reached bronze brazing rod will fill larger gaps silver solder other welding brazing torches available will much heav ier work employing combinations oxy gen acetylene propane Cost gen erally much higher simpler single-tank systems described arent commonly utilized Scale modelers cause dont need high-strength -quality joints capable producing Bob Dolly Wischer S-221 Lapham Peak Rd Delafield WI 53018 RC Soaring/Pruss "' ~ oaae 47 back building Sailplanes Hes build ing winches sale plans arent avail able since didnt have built However scribe has parts list youre interested trying Best ShowWinch Divisionat next meet send SASE address end column photo parts list should get way way USA teams backup winch little doodad picture shows aileron doodad clever hinging arrangements could put control surface specifically flaps flaperons ailerons also provides smoothest action cleanest gap line could hope achieve As matter fact no gap See photo TIGER TAIL 4 Ron Chidgeys latest and beat series little larger lighter slower retains honest tlight character tistics ot its predecessors Especially recommended sportsman ad vanced pattern also good choice turn-around pattern Plans construction hints WELLER 3 BLADE PROP very stiff molded fiberglas propellor England Its efficient design allows substantial reduction noise level actually improving per formance $2000 NEW CLAMP IT FOREVER STAINLESS STEEL PIPE CLAMPS Light strong Low-profile selflocking 3116 width wont cut Vsilicone couplers Pkg 4 clamps $295 deflected aileron notice joint tween wing hinging arrangement Dohle popular highperformance Sailplanes land Porches Leicas current F3B World Champion hinge simpleassuming use aluminum tube leading edge control surface hinge ar rangement shown merely piece wooden dowel covered sec tion Teflon tubing tubing mates ID aluminum tube Only three hinge points necessary short aileron long flaperon Notches filed aluminum tubing allow movement hinge pins depth notches determines amount control surface movement available assembly Teflon-coated pieces fed through aluminum tubing notched locations Small-diameter wood screws screwed dowels slots heads screws cut off shank ends what left threaded ends buried epoxiedin NEW WINGTUBE&SOCKETS 1 dia aluminum alloy tubing plugin wings Included pair special slip-fit phenolic sockets build wing-structure 2024 alum tube 24 long socket 12 long $895/set NEW NEW Sleeve Puller $795 BearIng Puller -$695 ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone espanding brass ring grips sleeve bearing ID new 60s 17MM rear bearing *Speclal* Both $1395 See Dealer Order DIrect Include 75 Per Item f UPS Gator RIC Products 3713 Pompano Dr Pensacola FL 32514 Phone AC 904 476-8639 example shownin wing course matched concave section has fash ioned affect gapless fit should noted once control surface tached wing attachment per manent Now few words about using alu minum tubing perfect hinge joints Since wings taper both span thickness ailerons flaps usually taper proportion wing stands reason hinge line also tapers thickness since diameter aluminum tubing constant have problem matching perfect concave/ convex joint tubing sticking above airfoil like wart beauty queens nose constant-chord wing would pose no problem As matter fact wing inner panels taper flap installation would snap However tapered-wing problem can resolved few aerodynamic compromises Since has work around problem constant-diameter tube Continued page 146 3-FUNCTION ACCU-TACH ITM O LCD Tachometer w/dual scale capability lox bOX Digital Voltmeter load 1566 checking/cycling TX/RX battery combosACCIbThCJd tor quick arging operation 7fl95 prepaid Send check Nor y order Calif add 6% tax P0 Box 70956 Sunnyvale CA IN94086 ModellerS FREE Z Catalog IFROMI IMicroMark Small Tool Specialists Hundreds unusual lools Iborrowed lmmlIieJewClrfI IGuesmilbing Clock Making protensional Model MakingI trades NOW AVAILABLETO YOU MAIL100% gearaoteedlI IeijI II NAME___________-~~—I nowssI CITY ____________________________________ STATE ICIOMRK4ex 51 t 2 JQ24 East Mole St.Cllntgii NJ aenon J February 1984 143 EVERY DETAIL GREAT SCALE FLiUSI PERFORMS ALL THE MANEUVERS OF lOt IN wINGSPAN 75 Lea USING 56 ENGII JR I COMPLETE KIT LESS WAEEU$22000 SHiF wing aileron flaperon have reckoned recall three-views Deckers model back December column youll note although wing tapers flaperon constant chord maintaining chord constant control surface problem almost solved say almost because assure proper thickness wing tip hinge line would extend would have widen chord control sur face would result undesired reverse-taper control surface Instead need increase thickness airfoil progressively towards wing tip specification sheetas issuedon Deckers bird misleading airfoil listed HQ 25-% modified True its modified really HQ 25-% mean ing wing starts out eightpercent section transitions ninepercent section tip change thickness along constant chord flaperon permitted use constantdiameter tubing perfect no-gap freely-moving control surface Heres another clever idea can use whether youre high-performance Sailplanes just eager clean up design next weekend flier youre about build fin rudder photo also Dohie fin merely folded sheet epoxy-treated fiberglass skin open ends joined together strip spruce about /4-in open edge finished rudder hinged two L-shaped wires can seen sticking out post supports elevators pivot-rod Another L-shaped wire epoxied bottom fuselage tail Action smooth again hinge line aerodynamically clean eagles tail experience scene photo hawks once-in-a-lifetime shot have Sailplane air camera ready same time would give odds-makers fits Well happened Tom Blood Geneva IL Tom furnished pic broadtail hawks stopped thermal over Fox Valley Aero Club field St Charles IL morning last September Tom estimated over 150 hawks counted talons divided eight scene After thermaling Metrick awhile hawks felt Tom safe enough alone disappeared west talked few bird fanciers aware hawks migrated such large numbers Any bird watchers out know better Good lift Dan Pruss 131 E Pennington Ln Plain field IL 60544 RC Pylon Racing/Hager Continued pacie 48 UPRC doesnt have fastest times country doesnt stop us having lot funwhich what flying should fun Next month get back props See Bill Hager 706 Glen Haven Dr Conroe lx 77302 RC Helicopters/Jolly Continued oaoe 49 has scale flybarless rotor head very teresting configuration Im hoping spot light R-22 future column Gorham Model Products John Robert US National Champ Gorham Ewald Heim Bob Hamilton Bill Curtis flying GMP fleet Joining Johns already extensive line Helicopters Heim Star-Ranger Watch report-in-depth next month GMP competitors air constantly right-side-up inverted doing Expert maneuvers have add Robert Gorhams Bob HamContinued page 148 146 Model Aviation HI THE NEW SUPER BELT HAND SANDER product can recommend confidence can buy satisfaction guaranteed $595A Good Value ART GROSS ENTERPRISES 33 12516 MAPLE WOOD AVE. EDMONDS WA 98O2O Matched rreormance ystem TOP PERFORMANCE K&R ENGINES Airplane 4 Marine K&B FUELSK&8 GLOW PLUGS 7 Blends4 choices Matched Finish System BEST APPEARANCE SB FIBtRGLASS CLOTH K&B Micrs-Ballssns FILLtR K&B SUPER POSY RESIN K&B SUPER POSY THINNER K&B SUPER POSY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS FULL LINE METAL SPECIALISTS RC Soaring/Pruss Continued fmm nnnn 143 VINTAGE R-C PLAN5 CONSOLIDATED PBY-5A CATALINA 9 FT WING SPAN ALL RIBS 8 FULL FORMERS SHOWN ON PLANS PLASTIC ENGCOWLS $ 990 PR CLEAR GUN BLISTERS $660 PR 4 LARGE PLAN SHEETS s $1695 GFT WING SPAN MODEL PBY-5A ENGINE COWLS 3 650 PR Plans $1295 GUN BLISTERS $ 450 PRADD 1250 POSTAGE CATALOG-OVER SOPLANS $100 DEALERS WRITE WORLD 0 WIDE SID MORGAN 13157 ORMOND BELLEVILLE MICH 48111 usA
Edition: Model Aviation - 1984/02
Page Numbers: 46, 47, 139, 142
Radio Control SOA RING Dan Pruss SOAR-CROSS 83 Back July Mich igan International Soaring Society held its second annual cross-country race truly race course although formidable challenge can completed gods good air cooperate Saturday didnt good enough reason schedule such event two days longer Sunday proved planning committee knew what doing Shortly after noon Dennis Chall Brighton RC Club first team two years cross finish line finished 121-mile course hour minute Twenty minutes later Ken Bates Michigan RC Sbcietystill fresh Great Race VIII victory month earlierlopped eleven minutes off Challs time didnt last long Greater Detroit Soaring Hiking Society Mark Wencel covered same 121 miles 31 minutes 17 seconds Rules event allow teams re launch fly part course often contest time permits fre quency per team crowded frequencies pose no problem contestants organizers Chall likes rules because sec See Tom Bloods Metrick admist broadtail hawks Photo Barb Vlasvich ond attempt around course Brighton crew did incredible time 27 minutes 28 seconds win Soar-Cross 83 top five finishers teamsall Michigan t Dennis Chall Brighton RC Club 00:2728 2 Mark Wencel Greater Detroit S&H Society0O:3117 3 Ken Bates Michigan RC SocietyO0:5002 4 David Weatherup Michigan International Soaring Society00:5022 5 Pat Flinn Greater Detroit S&H SocietyO0:5042 Two issues back column featured most-photographed model York F3B World Championships Well model most-photographed winch belonged USA team handiwork Bob Andrews Modesto CA photo shows some features have become trend winch design years long-shaft Ford starter motor has standard winches low costavailability junk yards low $5 auto supply houses about $30made motor affordable no pun intended long-shaft feature natu ral winch since line drum could Interesting hinging features German Dohie kit first 2 photos 1 C show tight-fitting aileron hingewith almost no gap Hard aluminum leading edge aileron provides rigidity allows accurate concave groove built wing TE hinge Itself very clever aluminum tube slotted allow Up/Down deflection smooth close-fitting plug length wood dowel covered Teflon tube inserted end tube threaded fastener screwed plug its free end epoxied wing structure right lathe rudders no-gap hinge pivot actuator stabilator fin lightweight fiberglass shell snuggles around rudders LE rudder itself hinged wIth 2 pinsthe upper just barely visible details text 46 Model Aviation / A / 1 easily slid onto shaft pinned through already-existing hole end shaft setup wasand still popular motor/drumiwinch com bination However heavier Sailplanes scene F3B launching techniques adding strain eon weekend fliers could impose some winch-designers have gone layout seen picture case starter motor still Ford shaft cut down line drum mounted separately two pillow blocks can seen makes compactnarrower anywaywinch importantly eliminates heavy side loads bearing wear starter-motor front plate heart driving mechanism made up drive pulleys belt Bob used Dayco timing pulleys cost motor $3910 vs $3069 timing belt one-to-one ratio motor seems reflect photo does Its chrome-plated winch brake bicycle sprocket brake lever Destaco welding clamp small round T-bar barely seen picture welded T-bar matches spacing cogs brakesimple very effective Parts alone show-stopper came just under $300 labor love Bob wants known hes now going Continued page 143 TOLEDO/84 THIRTIETH ANNUAL RIO EXPOSITION TOLEDO SPORTS ARENA ONE MAIN STREET TOLEDO OHIO Reserve April 6 7 81984 attend worlds greatest radio control mQdel show See latest greatest radio control equipment presented leading manufacturers Talk notable nc personalities have questions answered featuring worlds largest Swap Shops no dealers complete refreshment centers Saturday Night auction raffles complete nc systems accessories acres free parking Bring latest completely finished models display enter competition ex citing awards Competition models will accept during show hours till 10 am Sunday morning no entry fee Complete radio control systems will awarded first second third place winners brand new Microwave Oven will presented lucky winner Best Show Come join us enjoy selves unquestionably worlds greatest radio control model show Open public three great days %h Weak Signals RIO Club PO Box 5772 APRIL 6 7&8 FRIDAY9amto6pm SATURDAY 9amto6pm SUNDAY9amto43Opm Toledo Ohio 43613 February 1984 47 winch flier has everything Bob Andrews Modesto CA loves custommade beit-drive chrome-piated poiishedaiu minum red-framed beauty works Soar-Cross CD Ron Laiinsky sends us photo firat-piace team Brighton RC Ciub L R Dick Ransom chuck Chaii Dennis Chaii Ed Moore pose Dennis original-design cross-country ship apans 160 has unbailasted weight 8 lb fiew 9 ib 4 oz uses Eppier 205 airfoii has rudder/eievator/spoiier controis lutely clean fingerprints may make joint impossible Only tip brazing rod fed flame puddle molten solder well-fitted joint very little rod required helps reduce cost 50000 F flame held spot base metal hole may burned through Melting points commonly-used metals Steel 25000 brass 18000 bronze 16750 copper 19800 zinc 7870 aluminum 12180 F Mi croflame torch shouldnt used join parts larger about I-in X 2-in x /6-in thick Larger parts will conduct heat away too rapidly fuel suply con sumed before brazing temperature reached bronze brazing rod will fill larger gaps silver solder other welding brazing torches available will much heav ier work employing combinations oxy gen acetylene propane Cost gen erally much higher simpler single-tank systems described arent commonly utilized Scale modelers cause dont need high-strength -quality joints capable producing Bob Dolly Wischer S-221 Lapham Peak Rd Delafield WI 53018 RC Soaring/Pruss "' ~ oaae 47 back building Sailplanes Hes build ing winches sale plans arent avail able since didnt have built However scribe has parts list youre interested trying Best ShowWinch Divisionat next meet send SASE address end column photo parts list should get way way USA teams backup winch little doodad picture shows aileron doodad clever hinging arrangements could put control surface specifically flaps flaperons ailerons also provides smoothest action cleanest gap line could hope achieve As matter fact no gap See photo TIGER TAIL 4 Ron Chidgeys latest and beat series little larger lighter slower retains honest tlight character tistics ot its predecessors Especially recommended sportsman ad vanced pattern also good choice turn-around pattern Plans construction hints WELLER 3 BLADE PROP very stiff molded fiberglas propellor England Its efficient design allows substantial reduction noise level actually improving per formance $2000 NEW CLAMP IT FOREVER STAINLESS STEEL PIPE CLAMPS Light strong Low-profile selflocking 3116 width wont cut Vsilicone couplers Pkg 4 clamps $295 deflected aileron notice joint tween wing hinging arrangement Dohle popular highperformance Sailplanes land Porches Leicas current F3B World Champion hinge simpleassuming use aluminum tube leading edge control surface hinge ar rangement shown merely piece wooden dowel covered sec tion Teflon tubing tubing mates ID aluminum tube Only three hinge points necessary short aileron long flaperon Notches filed aluminum tubing allow movement hinge pins depth notches determines amount control surface movement available assembly Teflon-coated pieces fed through aluminum tubing notched locations Small-diameter wood screws screwed dowels slots heads screws cut off shank ends what left threaded ends buried epoxiedin NEW WINGTUBE&SOCKETS 1 dia aluminum alloy tubing plugin wings Included pair special slip-fit phenolic sockets build wing-structure 2024 alum tube 24 long socket 12 long $895/set NEW NEW Sleeve Puller $795 BearIng Puller -$695 ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone espanding brass ring grips sleeve bearing ID new 60s 17MM rear bearing *Speclal* Both $1395 See Dealer Order DIrect Include 75 Per Item f UPS Gator RIC Products 3713 Pompano Dr Pensacola FL 32514 Phone AC 904 476-8639 example shownin wing course matched concave section has fash ioned affect gapless fit should noted once control surface tached wing attachment per manent Now few words about using alu minum tubing perfect hinge joints Since wings taper both span thickness ailerons flaps usually taper proportion wing stands reason hinge line also tapers thickness since diameter aluminum tubing constant have problem matching perfect concave/ convex joint tubing sticking above airfoil like wart beauty queens nose constant-chord wing would pose no problem As matter fact wing inner panels taper flap installation would snap However tapered-wing problem can resolved few aerodynamic compromises Since has work around problem constant-diameter tube Continued page 146 3-FUNCTION ACCU-TACH ITM O LCD Tachometer w/dual scale capability lox bOX Digital Voltmeter load 1566 checking/cycling TX/RX battery combosACCIbThCJd tor quick arging operation 7fl95 prepaid Send check Nor y order Calif add 6% tax P0 Box 70956 Sunnyvale CA IN94086 ModellerS FREE Z Catalog IFROMI IMicroMark Small Tool Specialists Hundreds unusual lools Iborrowed lmmlIieJewClrfI IGuesmilbing Clock Making protensional Model MakingI trades NOW AVAILABLETO YOU MAIL100% gearaoteedlI IeijI II NAME___________-~~—I nowssI CITY ____________________________________ STATE ICIOMRK4ex 51 t 2 JQ24 East Mole St.Cllntgii NJ aenon J February 1984 143 EVERY DETAIL GREAT SCALE FLiUSI PERFORMS ALL THE MANEUVERS OF lOt IN wINGSPAN 75 Lea USING 56 ENGII JR I COMPLETE KIT LESS WAEEU$22000 SHiF wing aileron flaperon have reckoned recall three-views Deckers model back December column youll note although wing tapers flaperon constant chord maintaining chord constant control surface problem almost solved say almost because assure proper thickness wing tip hinge line would extend would have widen chord control sur face would result undesired reverse-taper control surface Instead need increase thickness airfoil progressively towards wing tip specification sheetas issuedon Deckers bird misleading airfoil listed HQ 25-% modified True its modified really HQ 25-% mean ing wing starts out eightpercent section transitions ninepercent section tip change thickness along constant chord flaperon permitted use constantdiameter tubing perfect no-gap freely-moving control surface Heres another clever idea can use whether youre high-performance Sailplanes just eager clean up design next weekend flier youre about build fin rudder photo also Dohie fin merely folded sheet epoxy-treated fiberglass skin open ends joined together strip spruce about /4-in open edge finished rudder hinged two L-shaped wires can seen sticking out post supports elevators pivot-rod Another L-shaped wire epoxied bottom fuselage tail Action smooth again hinge line aerodynamically clean eagles tail experience scene photo hawks once-in-a-lifetime shot have Sailplane air camera ready same time would give odds-makers fits Well happened Tom Blood Geneva IL Tom furnished pic broadtail hawks stopped thermal over Fox Valley Aero Club field St Charles IL morning last September Tom estimated over 150 hawks counted talons divided eight scene After thermaling Metrick awhile hawks felt Tom safe enough alone disappeared west talked few bird fanciers aware hawks migrated such large numbers Any bird watchers out know better Good lift Dan Pruss 131 E Pennington Ln Plain field IL 60544 RC Pylon Racing/Hager Continued pacie 48 UPRC doesnt have fastest times country doesnt stop us having lot funwhich what flying should fun Next month get back props See Bill Hager 706 Glen Haven Dr Conroe lx 77302 RC Helicopters/Jolly Continued oaoe 49 has scale flybarless rotor head very teresting configuration Im hoping spot light R-22 future column Gorham Model Products John Robert US National Champ Gorham Ewald Heim Bob Hamilton Bill Curtis flying GMP fleet Joining Johns already extensive line Helicopters Heim Star-Ranger Watch report-in-depth next month GMP competitors air constantly right-side-up inverted doing Expert maneuvers have add Robert Gorhams Bob HamContinued page 148 146 Model Aviation HI THE NEW SUPER BELT HAND SANDER product can recommend confidence can buy satisfaction guaranteed $595A Good Value ART GROSS ENTERPRISES 33 12516 MAPLE WOOD AVE. EDMONDS WA 98O2O Matched rreormance ystem TOP PERFORMANCE K&R ENGINES Airplane 4 Marine K&B FUELSK&8 GLOW PLUGS 7 Blends4 choices Matched Finish System BEST APPEARANCE SB FIBtRGLASS CLOTH K&B Micrs-Ballssns FILLtR K&B SUPER POSY RESIN K&B SUPER POSY THINNER K&B SUPER POSY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS FULL LINE METAL SPECIALISTS RC Soaring/Pruss Continued fmm nnnn 143 VINTAGE R-C PLAN5 CONSOLIDATED PBY-5A CATALINA 9 FT WING SPAN ALL RIBS 8 FULL FORMERS SHOWN ON PLANS PLASTIC ENGCOWLS $ 990 PR CLEAR GUN BLISTERS $660 PR 4 LARGE PLAN SHEETS s $1695 GFT WING SPAN MODEL PBY-5A ENGINE COWLS 3 650 PR Plans $1295 GUN BLISTERS $ 450 PRADD 1250 POSTAGE CATALOG-OVER SOPLANS $100 DEALERS WRITE WORLD 0 WIDE SID MORGAN 13157 ORMOND BELLEVILLE MICH 48111 usA
Edition: Model Aviation - 1984/02
Page Numbers: 46, 47, 139, 142
Radio Control SOA RING Dan Pruss SOAR-CROSS 83 Back July Mich igan International Soaring Society held its second annual cross-country race truly race course although formidable challenge can completed gods good air cooperate Saturday didnt good enough reason schedule such event two days longer Sunday proved planning committee knew what doing Shortly after noon Dennis Chall Brighton RC Club first team two years cross finish line finished 121-mile course hour minute Twenty minutes later Ken Bates Michigan RC Sbcietystill fresh Great Race VIII victory month earlierlopped eleven minutes off Challs time didnt last long Greater Detroit Soaring Hiking Society Mark Wencel covered same 121 miles 31 minutes 17 seconds Rules event allow teams re launch fly part course often contest time permits fre quency per team crowded frequencies pose no problem contestants organizers Chall likes rules because sec See Tom Bloods Metrick admist broadtail hawks Photo Barb Vlasvich ond attempt around course Brighton crew did incredible time 27 minutes 28 seconds win Soar-Cross 83 top five finishers teamsall Michigan t Dennis Chall Brighton RC Club 00:2728 2 Mark Wencel Greater Detroit S&H Society0O:3117 3 Ken Bates Michigan RC SocietyO0:5002 4 David Weatherup Michigan International Soaring Society00:5022 5 Pat Flinn Greater Detroit S&H SocietyO0:5042 Two issues back column featured most-photographed model York F3B World Championships Well model most-photographed winch belonged USA team handiwork Bob Andrews Modesto CA photo shows some features have become trend winch design years long-shaft Ford starter motor has standard winches low costavailability junk yards low $5 auto supply houses about $30made motor affordable no pun intended long-shaft feature natu ral winch since line drum could Interesting hinging features German Dohie kit first 2 photos 1 C show tight-fitting aileron hingewith almost no gap Hard aluminum leading edge aileron provides rigidity allows accurate concave groove built wing TE hinge Itself very clever aluminum tube slotted allow Up/Down deflection smooth close-fitting plug length wood dowel covered Teflon tube inserted end tube threaded fastener screwed plug its free end epoxied wing structure right lathe rudders no-gap hinge pivot actuator stabilator fin lightweight fiberglass shell snuggles around rudders LE rudder itself hinged wIth 2 pinsthe upper just barely visible details text 46 Model Aviation / A / 1 easily slid onto shaft pinned through already-existing hole end shaft setup wasand still popular motor/drumiwinch com bination However heavier Sailplanes scene F3B launching techniques adding strain eon weekend fliers could impose some winch-designers have gone layout seen picture case starter motor still Ford shaft cut down line drum mounted separately two pillow blocks can seen makes compactnarrower anywaywinch importantly eliminates heavy side loads bearing wear starter-motor front plate heart driving mechanism made up drive pulleys belt Bob used Dayco timing pulleys cost motor $3910 vs $3069 timing belt one-to-one ratio motor seems reflect photo does Its chrome-plated winch brake bicycle sprocket brake lever Destaco welding clamp small round T-bar barely seen picture welded T-bar matches spacing cogs brakesimple very effective Parts alone show-stopper came just under $300 labor love Bob wants known hes now going Continued page 143 TOLEDO/84 THIRTIETH ANNUAL RIO EXPOSITION TOLEDO SPORTS ARENA ONE MAIN STREET TOLEDO OHIO Reserve April 6 7 81984 attend worlds greatest radio control mQdel show See latest greatest radio control equipment presented leading manufacturers Talk notable nc personalities have questions answered featuring worlds largest Swap Shops no dealers complete refreshment centers Saturday Night auction raffles complete nc systems accessories acres free parking Bring latest completely finished models display enter competition ex citing awards Competition models will accept during show hours till 10 am Sunday morning no entry fee Complete radio control systems will awarded first second third place winners brand new Microwave Oven will presented lucky winner Best Show Come join us enjoy selves unquestionably worlds greatest radio control model show Open public three great days %h Weak Signals RIO Club PO Box 5772 APRIL 6 7&8 FRIDAY9amto6pm SATURDAY 9amto6pm SUNDAY9amto43Opm Toledo Ohio 43613 February 1984 47 winch flier has everything Bob Andrews Modesto CA loves custommade beit-drive chrome-piated poiishedaiu minum red-framed beauty works Soar-Cross CD Ron Laiinsky sends us photo firat-piace team Brighton RC Ciub L R Dick Ransom chuck Chaii Dennis Chaii Ed Moore pose Dennis original-design cross-country ship apans 160 has unbailasted weight 8 lb fiew 9 ib 4 oz uses Eppier 205 airfoii has rudder/eievator/spoiier controis lutely clean fingerprints may make joint impossible Only tip brazing rod fed flame puddle molten solder well-fitted joint very little rod required helps reduce cost 50000 F flame held spot base metal hole may burned through Melting points commonly-used metals Steel 25000 brass 18000 bronze 16750 copper 19800 zinc 7870 aluminum 12180 F Mi croflame torch shouldnt used join parts larger about I-in X 2-in x /6-in thick Larger parts will conduct heat away too rapidly fuel suply con sumed before brazing temperature reached bronze brazing rod will fill larger gaps silver solder other welding brazing torches available will much heav ier work employing combinations oxy gen acetylene propane Cost gen erally much higher simpler single-tank systems described arent commonly utilized Scale modelers cause dont need high-strength -quality joints capable producing Bob Dolly Wischer S-221 Lapham Peak Rd Delafield WI 53018 RC Soaring/Pruss "' ~ oaae 47 back building Sailplanes Hes build ing winches sale plans arent avail able since didnt have built However scribe has parts list youre interested trying Best ShowWinch Divisionat next meet send SASE address end column photo parts list should get way way USA teams backup winch little doodad picture shows aileron doodad clever hinging arrangements could put control surface specifically flaps flaperons ailerons also provides smoothest action cleanest gap line could hope achieve As matter fact no gap See photo TIGER TAIL 4 Ron Chidgeys latest and beat series little larger lighter slower retains honest tlight character tistics ot its predecessors Especially recommended sportsman ad vanced pattern also good choice turn-around pattern Plans construction hints WELLER 3 BLADE PROP very stiff molded fiberglas propellor England Its efficient design allows substantial reduction noise level actually improving per formance $2000 NEW CLAMP IT FOREVER STAINLESS STEEL PIPE CLAMPS Light strong Low-profile selflocking 3116 width wont cut Vsilicone couplers Pkg 4 clamps $295 deflected aileron notice joint tween wing hinging arrangement Dohle popular highperformance Sailplanes land Porches Leicas current F3B World Champion hinge simpleassuming use aluminum tube leading edge control surface hinge ar rangement shown merely piece wooden dowel covered sec tion Teflon tubing tubing mates ID aluminum tube Only three hinge points necessary short aileron long flaperon Notches filed aluminum tubing allow movement hinge pins depth notches determines amount control surface movement available assembly Teflon-coated pieces fed through aluminum tubing notched locations Small-diameter wood screws screwed dowels slots heads screws cut off shank ends what left threaded ends buried epoxiedin NEW WINGTUBE&SOCKETS 1 dia aluminum alloy tubing plugin wings Included pair special slip-fit phenolic sockets build wing-structure 2024 alum tube 24 long socket 12 long $895/set NEW NEW Sleeve Puller $795 BearIng Puller -$695 ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone espanding brass ring grips sleeve bearing ID new 60s 17MM rear bearing *Speclal* Both $1395 See Dealer Order DIrect Include 75 Per Item f UPS Gator RIC Products 3713 Pompano Dr Pensacola FL 32514 Phone AC 904 476-8639 example shownin wing course matched concave section has fash ioned affect gapless fit should noted once control surface tached wing attachment per manent Now few words about using alu minum tubing perfect hinge joints Since wings taper both span thickness ailerons flaps usually taper proportion wing stands reason hinge line also tapers thickness since diameter aluminum tubing constant have problem matching perfect concave/ convex joint tubing sticking above airfoil like wart beauty queens nose constant-chord wing would pose no problem As matter fact wing inner panels taper flap installation would snap However tapered-wing problem can resolved few aerodynamic compromises Since has work around problem constant-diameter tube Continued page 146 3-FUNCTION ACCU-TACH ITM O LCD Tachometer w/dual scale capability lox bOX Digital Voltmeter load 1566 checking/cycling TX/RX battery combosACCIbThCJd tor quick arging operation 7fl95 prepaid Send check Nor y order Calif add 6% tax P0 Box 70956 Sunnyvale CA IN94086 ModellerS FREE Z Catalog IFROMI IMicroMark Small Tool Specialists Hundreds unusual lools Iborrowed lmmlIieJewClrfI IGuesmilbing Clock Making protensional Model MakingI trades NOW AVAILABLETO YOU MAIL100% gearaoteedlI IeijI II NAME___________-~~—I nowssI CITY ____________________________________ STATE ICIOMRK4ex 51 t 2 JQ24 East Mole St.Cllntgii NJ aenon J February 1984 143 EVERY DETAIL GREAT SCALE FLiUSI PERFORMS ALL THE MANEUVERS OF lOt IN wINGSPAN 75 Lea USING 56 ENGII JR I COMPLETE KIT LESS WAEEU$22000 SHiF wing aileron flaperon have reckoned recall three-views Deckers model back December column youll note although wing tapers flaperon constant chord maintaining chord constant control surface problem almost solved say almost because assure proper thickness wing tip hinge line would extend would have widen chord control sur face would result undesired reverse-taper control surface Instead need increase thickness airfoil progressively towards wing tip specification sheetas issuedon Deckers bird misleading airfoil listed HQ 25-% modified True its modified really HQ 25-% mean ing wing starts out eightpercent section transitions ninepercent section tip change thickness along constant chord flaperon permitted use constantdiameter tubing perfect no-gap freely-moving control surface Heres another clever idea can use whether youre high-performance Sailplanes just eager clean up design next weekend flier youre about build fin rudder photo also Dohie fin merely folded sheet epoxy-treated fiberglass skin open ends joined together strip spruce about /4-in open edge finished rudder hinged two L-shaped wires can seen sticking out post supports elevators pivot-rod Another L-shaped wire epoxied bottom fuselage tail Action smooth again hinge line aerodynamically clean eagles tail experience scene photo hawks once-in-a-lifetime shot have Sailplane air camera ready same time would give odds-makers fits Well happened Tom Blood Geneva IL Tom furnished pic broadtail hawks stopped thermal over Fox Valley Aero Club field St Charles IL morning last September Tom estimated over 150 hawks counted talons divided eight scene After thermaling Metrick awhile hawks felt Tom safe enough alone disappeared west talked few bird fanciers aware hawks migrated such large numbers Any bird watchers out know better Good lift Dan Pruss 131 E Pennington Ln Plain field IL 60544 RC Pylon Racing/Hager Continued pacie 48 UPRC doesnt have fastest times country doesnt stop us having lot funwhich what flying should fun Next month get back props See Bill Hager 706 Glen Haven Dr Conroe lx 77302 RC Helicopters/Jolly Continued oaoe 49 has scale flybarless rotor head very teresting configuration Im hoping spot light R-22 future column Gorham Model Products John Robert US National Champ Gorham Ewald Heim Bob Hamilton Bill Curtis flying GMP fleet Joining Johns already extensive line Helicopters Heim Star-Ranger Watch report-in-depth next month GMP competitors air constantly right-side-up inverted doing Expert maneuvers have add Robert Gorhams Bob HamContinued page 148 146 Model Aviation HI THE NEW SUPER BELT HAND SANDER product can recommend confidence can buy satisfaction guaranteed $595A Good Value ART GROSS ENTERPRISES 33 12516 MAPLE WOOD AVE. EDMONDS WA 98O2O Matched rreormance ystem TOP PERFORMANCE K&R ENGINES Airplane 4 Marine K&B FUELSK&8 GLOW PLUGS 7 Blends4 choices Matched Finish System BEST APPEARANCE SB FIBtRGLASS CLOTH K&B Micrs-Ballssns FILLtR K&B SUPER POSY RESIN K&B SUPER POSY THINNER K&B SUPER POSY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS FULL LINE METAL SPECIALISTS RC Soaring/Pruss Continued fmm nnnn 143 VINTAGE R-C PLAN5 CONSOLIDATED PBY-5A CATALINA 9 FT WING SPAN ALL RIBS 8 FULL FORMERS SHOWN ON PLANS PLASTIC ENGCOWLS $ 990 PR CLEAR GUN BLISTERS $660 PR 4 LARGE PLAN SHEETS s $1695 GFT WING SPAN MODEL PBY-5A ENGINE COWLS 3 650 PR Plans $1295 GUN BLISTERS $ 450 PRADD 1250 POSTAGE CATALOG-OVER SOPLANS $100 DEALERS WRITE WORLD 0 WIDE SID MORGAN 13157 ORMOND BELLEVILLE MICH 48111 usA
Edition: Model Aviation - 1984/02
Page Numbers: 46, 47, 139, 142
Radio Control SOA RING Dan Pruss SOAR-CROSS 83 Back July Mich igan International Soaring Society held its second annual cross-country race truly race course although formidable challenge can completed gods good air cooperate Saturday didnt good enough reason schedule such event two days longer Sunday proved planning committee knew what doing Shortly after noon Dennis Chall Brighton RC Club first team two years cross finish line finished 121-mile course hour minute Twenty minutes later Ken Bates Michigan RC Sbcietystill fresh Great Race VIII victory month earlierlopped eleven minutes off Challs time didnt last long Greater Detroit Soaring Hiking Society Mark Wencel covered same 121 miles 31 minutes 17 seconds Rules event allow teams re launch fly part course often contest time permits fre quency per team crowded frequencies pose no problem contestants organizers Chall likes rules because sec See Tom Bloods Metrick admist broadtail hawks Photo Barb Vlasvich ond attempt around course Brighton crew did incredible time 27 minutes 28 seconds win Soar-Cross 83 top five finishers teamsall Michigan t Dennis Chall Brighton RC Club 00:2728 2 Mark Wencel Greater Detroit S&H Society0O:3117 3 Ken Bates Michigan RC SocietyO0:5002 4 David Weatherup Michigan International Soaring Society00:5022 5 Pat Flinn Greater Detroit S&H SocietyO0:5042 Two issues back column featured most-photographed model York F3B World Championships Well model most-photographed winch belonged USA team handiwork Bob Andrews Modesto CA photo shows some features have become trend winch design years long-shaft Ford starter motor has standard winches low costavailability junk yards low $5 auto supply houses about $30made motor affordable no pun intended long-shaft feature natu ral winch since line drum could Interesting hinging features German Dohie kit first 2 photos 1 C show tight-fitting aileron hingewith almost no gap Hard aluminum leading edge aileron provides rigidity allows accurate concave groove built wing TE hinge Itself very clever aluminum tube slotted allow Up/Down deflection smooth close-fitting plug length wood dowel covered Teflon tube inserted end tube threaded fastener screwed plug its free end epoxied wing structure right lathe rudders no-gap hinge pivot actuator stabilator fin lightweight fiberglass shell snuggles around rudders LE rudder itself hinged wIth 2 pinsthe upper just barely visible details text 46 Model Aviation / A / 1 easily slid onto shaft pinned through already-existing hole end shaft setup wasand still popular motor/drumiwinch com bination However heavier Sailplanes scene F3B launching techniques adding strain eon weekend fliers could impose some winch-designers have gone layout seen picture case starter motor still Ford shaft cut down line drum mounted separately two pillow blocks can seen makes compactnarrower anywaywinch importantly eliminates heavy side loads bearing wear starter-motor front plate heart driving mechanism made up drive pulleys belt Bob used Dayco timing pulleys cost motor $3910 vs $3069 timing belt one-to-one ratio motor seems reflect photo does Its chrome-plated winch brake bicycle sprocket brake lever Destaco welding clamp small round T-bar barely seen picture welded T-bar matches spacing cogs brakesimple very effective Parts alone show-stopper came just under $300 labor love Bob wants known hes now going Continued page 143 TOLEDO/84 THIRTIETH ANNUAL RIO EXPOSITION TOLEDO SPORTS ARENA ONE MAIN STREET TOLEDO OHIO Reserve April 6 7 81984 attend worlds greatest radio control mQdel show See latest greatest radio control equipment presented leading manufacturers Talk notable nc personalities have questions answered featuring worlds largest Swap Shops no dealers complete refreshment centers Saturday Night auction raffles complete nc systems accessories acres free parking Bring latest completely finished models display enter competition ex citing awards Competition models will accept during show hours till 10 am Sunday morning no entry fee Complete radio control systems will awarded first second third place winners brand new Microwave Oven will presented lucky winner Best Show Come join us enjoy selves unquestionably worlds greatest radio control model show Open public three great days %h Weak Signals RIO Club PO Box 5772 APRIL 6 7&8 FRIDAY9amto6pm SATURDAY 9amto6pm SUNDAY9amto43Opm Toledo Ohio 43613 February 1984 47 winch flier has everything Bob Andrews Modesto CA loves custommade beit-drive chrome-piated poiishedaiu minum red-framed beauty works Soar-Cross CD Ron Laiinsky sends us photo firat-piace team Brighton RC Ciub L R Dick Ransom chuck Chaii Dennis Chaii Ed Moore pose Dennis original-design cross-country ship apans 160 has unbailasted weight 8 lb fiew 9 ib 4 oz uses Eppier 205 airfoii has rudder/eievator/spoiier controis lutely clean fingerprints may make joint impossible Only tip brazing rod fed flame puddle molten solder well-fitted joint very little rod required helps reduce cost 50000 F flame held spot base metal hole may burned through Melting points commonly-used metals Steel 25000 brass 18000 bronze 16750 copper 19800 zinc 7870 aluminum 12180 F Mi croflame torch shouldnt used join parts larger about I-in X 2-in x /6-in thick Larger parts will conduct heat away too rapidly fuel suply con sumed before brazing temperature reached bronze brazing rod will fill larger gaps silver solder other welding brazing torches available will much heav ier work employing combinations oxy gen acetylene propane Cost gen erally much higher simpler single-tank systems described arent commonly utilized Scale modelers cause dont need high-strength -quality joints capable producing Bob Dolly Wischer S-221 Lapham Peak Rd Delafield WI 53018 RC Soaring/Pruss "' ~ oaae 47 back building Sailplanes Hes build ing winches sale plans arent avail able since didnt have built However scribe has parts list youre interested trying Best ShowWinch Divisionat next meet send SASE address end column photo parts list should get way way USA teams backup winch little doodad picture shows aileron doodad clever hinging arrangements could put control surface specifically flaps flaperons ailerons also provides smoothest action cleanest gap line could hope achieve As matter fact no gap See photo TIGER TAIL 4 Ron Chidgeys latest and beat series little larger lighter slower retains honest tlight character tistics ot its predecessors Especially recommended sportsman ad vanced pattern also good choice turn-around pattern Plans construction hints WELLER 3 BLADE PROP very stiff molded fiberglas propellor England Its efficient design allows substantial reduction noise level actually improving per formance $2000 NEW CLAMP IT FOREVER STAINLESS STEEL PIPE CLAMPS Light strong Low-profile selflocking 3116 width wont cut Vsilicone couplers Pkg 4 clamps $295 deflected aileron notice joint tween wing hinging arrangement Dohle popular highperformance Sailplanes land Porches Leicas current F3B World Champion hinge simpleassuming use aluminum tube leading edge control surface hinge ar rangement shown merely piece wooden dowel covered sec tion Teflon tubing tubing mates ID aluminum tube Only three hinge points necessary short aileron long flaperon Notches filed aluminum tubing allow movement hinge pins depth notches determines amount control surface movement available assembly Teflon-coated pieces fed through aluminum tubing notched locations Small-diameter wood screws screwed dowels slots heads screws cut off shank ends what left threaded ends buried epoxiedin NEW WINGTUBE&SOCKETS 1 dia aluminum alloy tubing plugin wings Included pair special slip-fit phenolic sockets build wing-structure 2024 alum tube 24 long socket 12 long $895/set NEW NEW Sleeve Puller $795 BearIng Puller -$695 ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone espanding brass ring grips sleeve bearing ID new 60s 17MM rear bearing *Speclal* Both $1395 See Dealer Order DIrect Include 75 Per Item f UPS Gator RIC Products 3713 Pompano Dr Pensacola FL 32514 Phone AC 904 476-8639 example shownin wing course matched concave section has fash ioned affect gapless fit should noted once control surface tached wing attachment per manent Now few words about using alu minum tubing perfect hinge joints Since wings taper both span thickness ailerons flaps usually taper proportion wing stands reason hinge line also tapers thickness since diameter aluminum tubing constant have problem matching perfect concave/ convex joint tubing sticking above airfoil like wart beauty queens nose constant-chord wing would pose no problem As matter fact wing inner panels taper flap installation would snap However tapered-wing problem can resolved few aerodynamic compromises Since has work around problem constant-diameter tube Continued page 146 3-FUNCTION ACCU-TACH ITM O LCD Tachometer w/dual scale capability lox bOX Digital Voltmeter load 1566 checking/cycling TX/RX battery combosACCIbThCJd tor quick arging operation 7fl95 prepaid Send check Nor y order Calif add 6% tax P0 Box 70956 Sunnyvale CA IN94086 ModellerS FREE Z Catalog IFROMI IMicroMark Small Tool Specialists Hundreds unusual lools Iborrowed lmmlIieJewClrfI IGuesmilbing Clock Making protensional Model MakingI trades NOW AVAILABLETO YOU MAIL100% gearaoteedlI IeijI II NAME___________-~~—I nowssI CITY ____________________________________ STATE ICIOMRK4ex 51 t 2 JQ24 East Mole St.Cllntgii NJ aenon J February 1984 143 EVERY DETAIL GREAT SCALE FLiUSI PERFORMS ALL THE MANEUVERS OF lOt IN wINGSPAN 75 Lea USING 56 ENGII JR I COMPLETE KIT LESS WAEEU$22000 SHiF wing aileron flaperon have reckoned recall three-views Deckers model back December column youll note although wing tapers flaperon constant chord maintaining chord constant control surface problem almost solved say almost because assure proper thickness wing tip hinge line would extend would have widen chord control sur face would result undesired reverse-taper control surface Instead need increase thickness airfoil progressively towards wing tip specification sheetas issuedon Deckers bird misleading airfoil listed HQ 25-% modified True its modified really HQ 25-% mean ing wing starts out eightpercent section transitions ninepercent section tip change thickness along constant chord flaperon permitted use constantdiameter tubing perfect no-gap freely-moving control surface Heres another clever idea can use whether youre high-performance Sailplanes just eager clean up design next weekend flier youre about build fin rudder photo also Dohie fin merely folded sheet epoxy-treated fiberglass skin open ends joined together strip spruce about /4-in open edge finished rudder hinged two L-shaped wires can seen sticking out post supports elevators pivot-rod Another L-shaped wire epoxied bottom fuselage tail Action smooth again hinge line aerodynamically clean eagles tail experience scene photo hawks once-in-a-lifetime shot have Sailplane air camera ready same time would give odds-makers fits Well happened Tom Blood Geneva IL Tom furnished pic broadtail hawks stopped thermal over Fox Valley Aero Club field St Charles IL morning last September Tom estimated over 150 hawks counted talons divided eight scene After thermaling Metrick awhile hawks felt Tom safe enough alone disappeared west talked few bird fanciers aware hawks migrated such large numbers Any bird watchers out know better Good lift Dan Pruss 131 E Pennington Ln Plain field IL 60544 RC Pylon Racing/Hager Continued pacie 48 UPRC doesnt have fastest times country doesnt stop us having lot funwhich what flying should fun Next month get back props See Bill Hager 706 Glen Haven Dr Conroe lx 77302 RC Helicopters/Jolly Continued oaoe 49 has scale flybarless rotor head very teresting configuration Im hoping spot light R-22 future column Gorham Model Products John Robert US National Champ Gorham Ewald Heim Bob Hamilton Bill Curtis flying GMP fleet Joining Johns already extensive line Helicopters Heim Star-Ranger Watch report-in-depth next month GMP competitors air constantly right-side-up inverted doing Expert maneuvers have add Robert Gorhams Bob HamContinued page 148 146 Model Aviation HI THE NEW SUPER BELT HAND SANDER product can recommend confidence can buy satisfaction guaranteed $595A Good Value ART GROSS ENTERPRISES 33 12516 MAPLE WOOD AVE. EDMONDS WA 98O2O Matched rreormance ystem TOP PERFORMANCE K&R ENGINES Airplane 4 Marine K&B FUELSK&8 GLOW PLUGS 7 Blends4 choices Matched Finish System BEST APPEARANCE SB FIBtRGLASS CLOTH K&B Micrs-Ballssns FILLtR K&B SUPER POSY RESIN K&B SUPER POSY THINNER K&B SUPER POSY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS FULL LINE METAL SPECIALISTS RC Soaring/Pruss Continued fmm nnnn 143 VINTAGE R-C PLAN5 CONSOLIDATED PBY-5A CATALINA 9 FT WING SPAN ALL RIBS 8 FULL FORMERS SHOWN ON PLANS PLASTIC ENGCOWLS $ 990 PR CLEAR GUN BLISTERS $660 PR 4 LARGE PLAN SHEETS s $1695 GFT WING SPAN MODEL PBY-5A ENGINE COWLS 3 650 PR Plans $1295 GUN BLISTERS $ 450 PRADD 1250 POSTAGE CATALOG-OVER SOPLANS $100 DEALERS WRITE WORLD 0 WIDE SID MORGAN 13157 ORMOND BELLEVILLE MICH 48111 usA