Free Flight Old-Timers Clarence Haught TOWLINE GLIDERS Free Flight international scene has essentially settled three categories Glider Rubber Power Although some subcategories boils down Nordic Wakefield Power country have events three main categories Old-Timer began maintains Power top interest spectrum strong increasing participation Rubber categoriesbut little activity Gliders seems odd Towline Glider least expensive categories Free Flight no searching expensive engines expendi tures expendable rubber strip 200-ft towline reel store constitutes launching expense good Towline Glider designs print best sources plans book Model Glider Designs Frank Zaic Available AMA book cludes several good designs also good theory articles well book particularly good area model construction tips good building practices illustrat ed highly recommend newcomers old-timers alike also good kit available Sig Sinbad model comes two sizes will provide hours pleasant flying fun Im sure design date Sinbad typical old-time Glider designs Modern Nordic gliders quite sophisticat ed employing such niceties circle-towhooks auto rudders two-position stabilizers Old-Timer Towline models must built original plans no auto rudder shown allowed Auto rudders allow model tow straight glide circle Since straight tow essential old-timers used variety schemes provide straight tow model trimmed circular glide method utilized towhook offset side good system used Sinbad design consisting towstick equipped sub rudder offsetting glide trim setting Gliders rudder modelers have flown Gliders may familiar technique Basi cally model towed up like kite depends relative wind going over wing generate lift little no wind person doing towing must run trot ward generate relative wind wind speed higher tow-person must compen sate moving slower stopping moving toward model little practice will get hang Towhook location plays important part towing characteristics towhook too far rearward model will want climb too steeply tend fall off side disastrous results towhook location too far forward model will climb will weave side side possibly fall dive damage imminent Some mod els use series towhooks once trim established same location always used Modern towlines employ 50-meter towline 164 feet Old-Timer rules allow maximum 200 ft Purchase good line Avoid nylon stretches Monofilainent larger diameters 035 works fine towline needs metal ring engage models towhook high-visibility flag about six 12 inches assist pulling line free model releasing also enabling flight timer see start stopwatch towline reel will allow adjust towline length reels winches have high-ratio return crank will allow reel line back quickly after releasing modelsometimes before reaches ground also provides convenient tanglefree storage line SAM Society Antique Modelers rules provide Towline Gliders special event specify pre-Nordic designs built fuselage cross section rules No required weights specified lightweight model getting top 200-ft towline good candidate long chase particularly good air calls good dethermalizer DT installed know no designs dethermalizer system plans needs added allowable modifi cation Pop-up stabs work best can activated fuse clockwork timer Using fuse requires providing extra length fuse allow towing time clockwork timers can started pull-pin towline releases model DT fuses best located remote ftom tail near models center gravity CG Trimming Towline Glider relatively Continued page 151 pair beautiful modeis Bruce Augustus Sun Vaiiey iD Brooklyn Dodger R covered red white poiveater usesAmco 35cc dlessi engIne fiow-through exhaust system Pisyboy Jr L has MonoKote Soiartexcovering Elfin 249cc diesel engine Dennis Osburns Vancouver BC rubberpowered Hi Climber L entered Wiliamette modelers combined OidTimerand Silent Please contest Albany OR last September Sig checkered tissue getting rarer time nice Hepcat R built Shirley God. covered silkepan finished dope uses McCoy 19 glow engine power Weight 215 ounces 64 Model Aviation FF Scale/Warner Continued page 147 Easy said Frenchman infor mation typical ally accurate abso lutely useless accountant replied typi cal balloonists st charge vehicle cant control having no idea likely effect actions expect previously-uninvolved bystander understand predicament real problem Well Gang bit nonsense via Buoyant Flight LTA Society will have Persevere dont glue yourself model Bill Warner 423-C San Vicente Blvd Santa Monica CA 90402 FF Duration/Meuser Continued page 63 latter under influence former publication such things com petitive activity would seem blokes trying give us colonies run money price however isnt tough 550 airmail 475 surface todays exchange rate amounts $836 $722 real money respectively books 8 x 12 inches 75 pages have soft covers can get check made out British funny-money bank Make said checks payable SMAE F/F Team Travel Fund send Martin Dilly 20 Links Road West Wickham Kent BR4 OQW England oh bye bye have line.There also 1985 report similar nature articles Ian Kaynes Martin Gregorie Stafford Screen Mike Fantham Ron Pollard Prices 500 airmail 425 surface same source havent seen Ill wager its pretty good So Thats Farewell friends Remember treat successor well youve treated maybe better keep him snowed under photos sketches comments ideas general gas Just remember Im dead Id still love hear folksbut nay always have time answer Harry vturphy will continue next month ther month eternities come hes loing some time now Dont forget send mi photos news items etc too Bob Meuser 4200 Gregory St Oakland CA 4619 Bill Hartill will Free Flight Du ation chair September Watch FF Old- Timers/Haught Continued page 64 easy Check proper CO location pro zeed hand gliding Trim gentle glide no stall built-in 200-ft glide 2ircle Remember towhook offset tow rudder will have compensate glide-turn rim wide circle ideal Flying Towline Glider requires two peo leone launch tow auncher merely holds model over head ith nose up slightly say 150 model s pulled launchers hand tow starts launcher must throw model tow-person moves forward wind watching model over shoul der regulating speed control climb flier should watch carefully signs erratic climb veering sideways Releasing tension line will usually release model dont afraid release towline things arent going well good tow should have model climbing angle around 400 tracking straight As model climbs overhead stop towing ease off line tension model should float off line glide its own Ive noticed few contests featuring Towline Glider events coming across desk lately Local interest helps Give Towline tryits fun event Happy chasing Phantom Flash Illinois Model Aero Club celebrating its 75th year postal contest Comet Phantom Flash ROG Flights must posted between April 1 September 1 1986 eligible No modifications design permitted except beefing up struc ture use desired propeller Plans rules can contacting Paul Hel man 1411 Judson Ave Evanston IL 60201 Clarence Haught 3226 Honeysuckle Dr Coeur dAlene ID 83814 Gee Bee R-1/Nunes Continued page 68 three hinge locations per side Pre-cover hinge line used MonoKote Open hinge slots #11 hobby blade centered slot per hinge location Ap ply glue insert hinges Check ease movement satisfied drill small hole through balsa hinge end gluing small pieces round toothpick will afterward cut off sanded flush surface Remove small piece material aft stab slot Zona saw keep piece V/hen stab/elevator assembly dry slide stabilizer slot making sure square model per plan glue position Slide previouslyremoved small piece material back position glue Rudder Shape medium-hard 46 sheet balsa cut out lightening holes desired extra careful avoid break ing off lower rudder tail adds models overall appeal can apply thin CyA area stiffen tail Cut strips built-up sides best way accomplish cut strips bit oversize attach way rudder use thin CyA small triangle straightness dry taper form ers front back small razor plane sanding block formers have added shaped sand back rudder round Again careful around tail Sand rudder front edge allow rudder offset Strive good uniform contact between rudder rudder post satisfied glue fuselage letting dry thoroughly addition really adds special touch THE LEADER IN COMPETITION PROPELLERS NEW SERIES 100 TAILORED HELICAL PITCH DEVELOPED TO GIVE MAXIMUM THRUST AT 4CYCLE ENGINE RPM ALLTHE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW DIAPITCH THPPRICE 1286/,77/,8 299 18678989 13677/,5379 14677/8479 67689 NEW PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILLNOTFATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534149 634149 72833/,456179 8334568189 84566/7199 94566/z77/199 104566/,7209 106W8W209 106EW219 1146777/,7/,6229 115W229 116EW239 1167239 124W279 12SW279 1256279 1356349 1456459 IS58659 164/N969 16676969 July1986 151
Edition: Model Aviation - 1986/07
Page Numbers: 64, 151
Free Flight Old-Timers Clarence Haught TOWLINE GLIDERS Free Flight international scene has essentially settled three categories Glider Rubber Power Although some subcategories boils down Nordic Wakefield Power country have events three main categories Old-Timer began maintains Power top interest spectrum strong increasing participation Rubber categoriesbut little activity Gliders seems odd Towline Glider least expensive categories Free Flight no searching expensive engines expendi tures expendable rubber strip 200-ft towline reel store constitutes launching expense good Towline Glider designs print best sources plans book Model Glider Designs Frank Zaic Available AMA book cludes several good designs also good theory articles well book particularly good area model construction tips good building practices illustrat ed highly recommend newcomers old-timers alike also good kit available Sig Sinbad model comes two sizes will provide hours pleasant flying fun Im sure design date Sinbad typical old-time Glider designs Modern Nordic gliders quite sophisticat ed employing such niceties circle-towhooks auto rudders two-position stabilizers Old-Timer Towline models must built original plans no auto rudder shown allowed Auto rudders allow model tow straight glide circle Since straight tow essential old-timers used variety schemes provide straight tow model trimmed circular glide method utilized towhook offset side good system used Sinbad design consisting towstick equipped sub rudder offsetting glide trim setting Gliders rudder modelers have flown Gliders may familiar technique Basi cally model towed up like kite depends relative wind going over wing generate lift little no wind person doing towing must run trot ward generate relative wind wind speed higher tow-person must compen sate moving slower stopping moving toward model little practice will get hang Towhook location plays important part towing characteristics towhook too far rearward model will want climb too steeply tend fall off side disastrous results towhook location too far forward model will climb will weave side side possibly fall dive damage imminent Some mod els use series towhooks once trim established same location always used Modern towlines employ 50-meter towline 164 feet Old-Timer rules allow maximum 200 ft Purchase good line Avoid nylon stretches Monofilainent larger diameters 035 works fine towline needs metal ring engage models towhook high-visibility flag about six 12 inches assist pulling line free model releasing also enabling flight timer see start stopwatch towline reel will allow adjust towline length reels winches have high-ratio return crank will allow reel line back quickly after releasing modelsometimes before reaches ground also provides convenient tanglefree storage line SAM Society Antique Modelers rules provide Towline Gliders special event specify pre-Nordic designs built fuselage cross section rules No required weights specified lightweight model getting top 200-ft towline good candidate long chase particularly good air calls good dethermalizer DT installed know no designs dethermalizer system plans needs added allowable modifi cation Pop-up stabs work best can activated fuse clockwork timer Using fuse requires providing extra length fuse allow towing time clockwork timers can started pull-pin towline releases model DT fuses best located remote ftom tail near models center gravity CG Trimming Towline Glider relatively Continued page 151 pair beautiful modeis Bruce Augustus Sun Vaiiey iD Brooklyn Dodger R covered red white poiveater usesAmco 35cc dlessi engIne fiow-through exhaust system Pisyboy Jr L has MonoKote Soiartexcovering Elfin 249cc diesel engine Dennis Osburns Vancouver BC rubberpowered Hi Climber L entered Wiliamette modelers combined OidTimerand Silent Please contest Albany OR last September Sig checkered tissue getting rarer time nice Hepcat R built Shirley God. covered silkepan finished dope uses McCoy 19 glow engine power Weight 215 ounces 64 Model Aviation FF Scale/Warner Continued page 147 Easy said Frenchman infor mation typical ally accurate abso lutely useless accountant replied typi cal balloonists st charge vehicle cant control having no idea likely effect actions expect previously-uninvolved bystander understand predicament real problem Well Gang bit nonsense via Buoyant Flight LTA Society will have Persevere dont glue yourself model Bill Warner 423-C San Vicente Blvd Santa Monica CA 90402 FF Duration/Meuser Continued page 63 latter under influence former publication such things com petitive activity would seem blokes trying give us colonies run money price however isnt tough 550 airmail 475 surface todays exchange rate amounts $836 $722 real money respectively books 8 x 12 inches 75 pages have soft covers can get check made out British funny-money bank Make said checks payable SMAE F/F Team Travel Fund send Martin Dilly 20 Links Road West Wickham Kent BR4 OQW England oh bye bye have line.There also 1985 report similar nature articles Ian Kaynes Martin Gregorie Stafford Screen Mike Fantham Ron Pollard Prices 500 airmail 425 surface same source havent seen Ill wager its pretty good So Thats Farewell friends Remember treat successor well youve treated maybe better keep him snowed under photos sketches comments ideas general gas Just remember Im dead Id still love hear folksbut nay always have time answer Harry vturphy will continue next month ther month eternities come hes loing some time now Dont forget send mi photos news items etc too Bob Meuser 4200 Gregory St Oakland CA 4619 Bill Hartill will Free Flight Du ation chair September Watch FF Old- Timers/Haught Continued page 64 easy Check proper CO location pro zeed hand gliding Trim gentle glide no stall built-in 200-ft glide 2ircle Remember towhook offset tow rudder will have compensate glide-turn rim wide circle ideal Flying Towline Glider requires two peo leone launch tow auncher merely holds model over head ith nose up slightly say 150 model s pulled launchers hand tow starts launcher must throw model tow-person moves forward wind watching model over shoul der regulating speed control climb flier should watch carefully signs erratic climb veering sideways Releasing tension line will usually release model dont afraid release towline things arent going well good tow should have model climbing angle around 400 tracking straight As model climbs overhead stop towing ease off line tension model should float off line glide its own Ive noticed few contests featuring Towline Glider events coming across desk lately Local interest helps Give Towline tryits fun event Happy chasing Phantom Flash Illinois Model Aero Club celebrating its 75th year postal contest Comet Phantom Flash ROG Flights must posted between April 1 September 1 1986 eligible No modifications design permitted except beefing up struc ture use desired propeller Plans rules can contacting Paul Hel man 1411 Judson Ave Evanston IL 60201 Clarence Haught 3226 Honeysuckle Dr Coeur dAlene ID 83814 Gee Bee R-1/Nunes Continued page 68 three hinge locations per side Pre-cover hinge line used MonoKote Open hinge slots #11 hobby blade centered slot per hinge location Ap ply glue insert hinges Check ease movement satisfied drill small hole through balsa hinge end gluing small pieces round toothpick will afterward cut off sanded flush surface Remove small piece material aft stab slot Zona saw keep piece V/hen stab/elevator assembly dry slide stabilizer slot making sure square model per plan glue position Slide previouslyremoved small piece material back position glue Rudder Shape medium-hard 46 sheet balsa cut out lightening holes desired extra careful avoid break ing off lower rudder tail adds models overall appeal can apply thin CyA area stiffen tail Cut strips built-up sides best way accomplish cut strips bit oversize attach way rudder use thin CyA small triangle straightness dry taper form ers front back small razor plane sanding block formers have added shaped sand back rudder round Again careful around tail Sand rudder front edge allow rudder offset Strive good uniform contact between rudder rudder post satisfied glue fuselage letting dry thoroughly addition really adds special touch THE LEADER IN COMPETITION PROPELLERS NEW SERIES 100 TAILORED HELICAL PITCH DEVELOPED TO GIVE MAXIMUM THRUST AT 4CYCLE ENGINE RPM ALLTHE LATEST TECHNIQUES USED ON OUR PRO SERIES 3 SEE BELOW DIAPITCH THPPRICE 1286/,77/,8 299 18678989 13677/,5379 14677/8479 67689 NEW PRO SERIES 3 NEW HIGH TECH AIRFOIL SECTION 10T020% INCREASE IN THRUST MFG OF SELECT HARD MAPLE WOOD WILLNOTFATIGUE LIKE SYNTHETICS FUEL PROOF HIGH LUSTER FINISH DIAPITCHPRICE 534149 634149 72833/,456179 8334568189 84566/7199 94566/z77/199 104566/,7209 106W8W209 106EW219 1146777/,7/,6229 115W229 116EW239 1167239 124W279 12SW279 1256279 1356349 1456459 IS58659 164/N969 16676969 July1986 151