Free Flight OLD- TIMER Clarence Haught NEW OLD-TIMERS name defi nition Old-Timer enthusiasts con cerned advancing state art rather content savoring flavor Free Flight started observation further supported lack popularity SAM special event entitled Old Ruler permits builder design new model under 1941 rules flown special event spirit Old-Timer Free Flight Today tend think terms established lists familiar designs have diminished down relatively few good-performing models tend forget just today modem Free Flight curious modelers rarely build published plans kits must design own matter did well-established models come Obviously emerging victors contest circuit result fortunate encounter strong thermal surviving designs multitude designsgood bad Peter Nadrowski flew two Old-Timers back 1932-34 era powered Brown Jr engines swinging 14-in props 8-ft span other 71/2 ft Weights around six lb Covering silk clear colored dope Note patriotic color schemes plug-together wings dont know sure Peter took photos flies RC models today designing own planes just did two originals back Free Flight days indifferentthat never noticed right people what about others lurking out attics barns Once someone sends photo interesting old models like ones presented Peter Nodrowski Chicopee MA examples own design still has good information details models could no doubt docu mented age thus qualify SAM competitions probably examples good-flying designs just waiting discovered SAM rules specify models designed kitted published before December 31 1942 key word statement designed SAM provides just sort thing through approval its executive com mittee fact executive committee just approved another Antique-class model Goon designed 1938 Fred Lemberg 2426 Bolker Dr Port Hueneme CA 93401 Continued page 164 70 Model Aviation S Bill Krecek hotds Baby Duration rubber-power model Californias MileMartin Gettig sends photo power department nose Square flying site design Felix Guttman well-known Thisplanea Cox TO 049 converted ignition Bruce Chandler ex shows fine craftsmanship Small rubber jobs like provide greatposed Ignition points Super Cyclone type appear large deal fun investment wonders trimming techcomparison engine Open points easy inspect maintain niquel Photo Mikkelsonbut suffer susceptibility oil dirt fouling TIGER TAIL 4 Ron Chidgeys latest beat series little larger lighter slower retains honest flight character tistics its predecessors Especially recommended sportsman ad vanced pattern also good choice turn-around pattern Plans construction hints $995 WELLER 3 BLADE PROP very stiff molded fiberglas propellor England Its efficient design allows substantial reduction noise level actually improving per formance $2000 NEW NEW CLAMP IT FOREVER STAINLESS STEEL PIPE CLAMPS Light strong Low-profile selflocking 3116 width wont cut silicone couplers Pkg 4 clamps -$295 FF Indoor5enny Continued aqe 162 week same Folkerts Racer won last year However model ferocious zoom placed near top 100-ft site time passed second pylon second lap appeared much faster Butchs Fokker looked almost uncontrollaLle other end spectrum Susan Arak added wheels AMA Cub turned time 1454 seconds model quite docile Whats needed Since Ive tried event surely am qualified specu late So suggest following design con siderations I The model should light pos sible maximize acceleration minimize lift required 2 The airfoils should chosen fof low lift low drag seems likely tail surfaces should contribute lift help control zoom 3 Flight adjustments must work hold constant flight-circle diameter close pylons possible 4 Since model must ROG special attention should given takeoff assure repeatable direction control launch model veers during takeoff will miss rounding both pylons circle will have wider include both pylons CD hints Event Director needs furnish two pylons placed 20 ft apart Char lie Sotich designed event has directed time has held West Baden uses two helium-filled balloons strings pylons seems work well since models usually damaged hitting string balloon might hitting substantial marker easily moved out onto NEW Sleeve Puller -$795 BearIng Puller -$695 GZP C NEW 1 dia aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wing-structure 2024 alum tube 24 long socket 12 long $8gSIsei ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone espanding brass ring grips sleeve bearing 10 new 60s 17MM rear bearing *Speclal* Both $1395 Gator RIG Products 3713 Pompano Dr Pensacola FL 32514 Ptione AC 904 476-8639 floor half-hour periods held twohour intervals event scheduled Two persons required run event timer stands line balloon strings judge start end required two laps second judge stands can see model does turn inside either pylon Indoor Payload Yep being tried Chicago area Del Ogren Don Lindley making demonstration flights can rules simple model has maximum span overall length limi tation 12-in model must carry ping-pong ball payload maximum duration wins ping-pong ball weighs three grams typical model weight gram photo Don Lindley shows off demo model straight forward design similar layout Pennypiane models Another fun class Some recent columns have reported various unusual different classes have flown club meetings small contests such event surfaced West Baden one-design event promoted Chuck Markos uses 18-in-span model built plans furnished Chuck uses same prop assembly AMA Cub photo shows models contest announcement Cash Bash event consists repeated mass launches first model land being eliminated Rewind launch called start lingly short time after last model lands event won Aaron Markos competition gunning him sev eral models inscribed Beat Aaron didnt work spirit models easily adjusted fly very well getting well over minute per flight Bud Tenny PO Box 545 Richardson IX 75080 FF Old-Timers/Haught Continued naqe 70 Goon 75-in-span single-wheeler now available kit form Fred Lets aware possible dis covery other designs period may some sleepers still out Catalogs can never have too much information hand concerning hobby Most us maintain lists catalogs OldTimer supplies no other reason able refer others sources meeting needs couple latest acquisi tions worthy additions Free Flighter s library Otto Bernhard 77 Products 17119 South Harvard Blvd Gardena CA 90247 puts out excellent publication ignition-engine enthusiast As know Otto has converting glow en gines ignition years both Old-Timer use general RC flying offers complete range OS Max con versions 15 35 cu displacement FF RC versions 15 fourcycle 60s addition Otto produces 77 Special based powerful Merco 61 refinements porting polishing cooling choice carburetors catalog includes good selection ignition accessories including coils con densers engine dethermalizer timers spark plugs SAE 70 oil neoprene goods heavy-duty silk RC fliers 77 Products also offers transistorized ig nition system elimiantes troublesome electrical noises exert un wanted influences radio control systems As isnt enough catalog con tains section running ignition engine complete wiring diagrams troubleshooting section Wait theres Otto authored series articles Model Builder magazine reprinted full wealth information enjoyable reading two bucks John Morrill producer Hornet 19 Simplex 25 has other catalog Simplex 25s out production moment another run still possibility John does produce some other items inter est Free Flighters including Sidewinder rubber motor winder optional turns counter Simplex torque-actuated front end Wakefield Mulvihill rubber models precision shafting popular modeling sizes Contact Simplex 143 Richmond St El Segundo CA 90245 Down under Once hear Ron Magill 4207 Great North Road Glen Eden Auckland 8 New Zealand getting Old-Timer Towline Gliders Ron looking plans source came mind Frank Zaics book Model Glider Design really loaded formation gliders Written back 1944 Frank serving Army book deals aspects O-T gliders including theory design construction tech164 Model Aviation WING TUBE & SOCKETS See Dealer Order Direct Include 75 Per Item UPS 115 SCALE Golden Era biplanes will come alive smooth flying easy building flying machine Its big enough catch attention yet small enough use everyday glow engine 657 N E 168th Street Miami Florida 33180 Telephone 935-1436 KIT FEATURES Machined die cut balsa select plywood hardwoods Hardware package Pre-bent landing gear cabine wire Vacuum formed ABS cowl aieleron caps gas cover Mylar decals Full size plans instruction book including isometric drawings SPECIFICATIONS 1/5 Scale 72in Span Area 1530 sqin 4 channel Radio 61-12 Engine Weight 12 lbs Fuse 54 1/2 nique materials finishes flying de thermalizing Also included several de signs could probably documented fall SAM time frame impressive sections book view detailed descriptions sketches building covering methods book could well used textbook classes model airplanes great help answering questions ginners field time time Get copy AMAs Supply Service Department AMA HQ $450 Plotting airfoils Last column published pair Lanzo airfoils along co ordinates didnt give much thought time have mind jolted some questions few individuals age full-size plans plotted airfoil coordinates Plotting air foil desired chord simple task made simpler advent elec tronic calculators coordinate chart has three vertical columns left column labeled % refers locations vari ous points horizontal base line laid out desired chord dimension Zero leading edge 100 trailing edge other points falling per centage chord indicated column labeled Upper indicates point above base line expressed dimension per centage chord located its per centage chord location Points established become connecting points upper air foil surface Lower column also dicates point above base line unless negative number case plotted below base line points become connecting points lower airfoil surface Thus airfoil coordinate chart positive numbers would indi cate airfoil undercamber chart negative numbers r' column would indicate symmetrical semi-symmetrical airfoil final step connect points mooth flowing line using French curves lent strip wood similar aid fact hat numbers coordinate chart refer o percentage selected chord allows sn airfoil desired chord accu rately reproduced old days used graph paper aid minimizing mathematical calculations men tioned earlier electronic pocket calcula tor saves work makes fun youve reproducing airfoils drawing around shoe sole try method predictable results Clarence Haught 3226 Honeysuckle Dr Coeur dAlene ID 83814 Indoor Champs/Clemens Continued page 73 topped ninth last 1084 two-flight total 136 sec easy first place new Cat III record Bob Larsh finished second 116 Dick Pi vitt taking third 946 Bryan Fulmer Senior competition himself winning 1148 Paul Loucka took Junior event 88 sec onds closely pressed Aaron Markos 852 Third Junior Dave Brown 52 sec majestic floaters ultra-light mi crofilm models made first official ap pearance starting noon FAI FID AMA Hand-Launched Stick competitions got underway FlD flown six rounds two hours four rounds sched uled Monday final two Tues day afternoon end meet event also served regional FAI com petition help select next US FAL Indoor Team fact added keenness flying Larry Cailliau California just FlD meet served notice man hot hand put up first-round flight 3323 Less min ute behind him Ron Higgs Canada excellent 3251 Akrons Bill Hul bert third-highest time Round 3 128 Round Two saw Cailliau again lead field posted 3255 flight Close hind him Dick Doig Detroit 3219 Bill Hulbert stayed trans-half-hour pace 3102 Attrition crowded air space taking its toll mid-afternoon Some FIDs outclimbed site lodged steel beams beneath 200-ft-dia atrium dome others became victims mid air collisions spiraling slowly down en tangled second model Round Three found Larry Cailliau rubbing 3532 effort Jim Richmond finally uncorking fine 3510 flight after uneventful times first two rounds Third-best Round Three Stan Chil tons 3241 Round Four final day Cailliaus lead challenged Cezar Banks put up 3440 lead fliers Stan Chilton 3252 Richmond 3219 Ron Ganser 3210 Cailliau dropped off earlier pace 3 155 completion four six scheduled rounds look best twoflight totals top five showed Cailliau leading 6855 Just less 1 /2 mm behind him Richmond 6729 Chilton third 6531 Higgs fourth 6357 Doig fifth 6327 closelyfought battle indeed Competing amidst F ID ships AMA Stick models built maximum allowable wing area 300 sq Goliaths Dick Doig put up two flights over 39 minutes best 3927 earned him welldeserved first place Second went Stan Chilton 3449 flight third place taken Dick Obarskis big floater high time 3241 Junior/Senior-combined class Tom Norell won 2113 Mike Clem took second 2 113 Paul Loucka third 2019 what sight made during height competition As eight microfilm birds airborne together circling left super-slow motion long propellers turning mindbending 45 rpm slower sight will soon forgotten fortunate enough have day 81-year-old domed atrium Action began early7 amon Tuesday morning start 3/2-hr period scheduled two ROG Cabin events ManOctober 1983 165
Edition: Model Aviation - 1983/10
Page Numbers: 70, 164, 165
Free Flight OLD- TIMER Clarence Haught NEW OLD-TIMERS name defi nition Old-Timer enthusiasts con cerned advancing state art rather content savoring flavor Free Flight started observation further supported lack popularity SAM special event entitled Old Ruler permits builder design new model under 1941 rules flown special event spirit Old-Timer Free Flight Today tend think terms established lists familiar designs have diminished down relatively few good-performing models tend forget just today modem Free Flight curious modelers rarely build published plans kits must design own matter did well-established models come Obviously emerging victors contest circuit result fortunate encounter strong thermal surviving designs multitude designsgood bad Peter Nadrowski flew two Old-Timers back 1932-34 era powered Brown Jr engines swinging 14-in props 8-ft span other 71/2 ft Weights around six lb Covering silk clear colored dope Note patriotic color schemes plug-together wings dont know sure Peter took photos flies RC models today designing own planes just did two originals back Free Flight days indifferentthat never noticed right people what about others lurking out attics barns Once someone sends photo interesting old models like ones presented Peter Nodrowski Chicopee MA examples own design still has good information details models could no doubt docu mented age thus qualify SAM competitions probably examples good-flying designs just waiting discovered SAM rules specify models designed kitted published before December 31 1942 key word statement designed SAM provides just sort thing through approval its executive com mittee fact executive committee just approved another Antique-class model Goon designed 1938 Fred Lemberg 2426 Bolker Dr Port Hueneme CA 93401 Continued page 164 70 Model Aviation S Bill Krecek hotds Baby Duration rubber-power model Californias MileMartin Gettig sends photo power department nose Square flying site design Felix Guttman well-known Thisplanea Cox TO 049 converted ignition Bruce Chandler ex shows fine craftsmanship Small rubber jobs like provide greatposed Ignition points Super Cyclone type appear large deal fun investment wonders trimming techcomparison engine Open points easy inspect maintain niquel Photo Mikkelsonbut suffer susceptibility oil dirt fouling TIGER TAIL 4 Ron Chidgeys latest beat series little larger lighter slower retains honest flight character tistics its predecessors Especially recommended sportsman ad vanced pattern also good choice turn-around pattern Plans construction hints $995 WELLER 3 BLADE PROP very stiff molded fiberglas propellor England Its efficient design allows substantial reduction noise level actually improving per formance $2000 NEW NEW CLAMP IT FOREVER STAINLESS STEEL PIPE CLAMPS Light strong Low-profile selflocking 3116 width wont cut silicone couplers Pkg 4 clamps -$295 FF Indoor5enny Continued aqe 162 week same Folkerts Racer won last year However model ferocious zoom placed near top 100-ft site time passed second pylon second lap appeared much faster Butchs Fokker looked almost uncontrollaLle other end spectrum Susan Arak added wheels AMA Cub turned time 1454 seconds model quite docile Whats needed Since Ive tried event surely am qualified specu late So suggest following design con siderations I The model should light pos sible maximize acceleration minimize lift required 2 The airfoils should chosen fof low lift low drag seems likely tail surfaces should contribute lift help control zoom 3 Flight adjustments must work hold constant flight-circle diameter close pylons possible 4 Since model must ROG special attention should given takeoff assure repeatable direction control launch model veers during takeoff will miss rounding both pylons circle will have wider include both pylons CD hints Event Director needs furnish two pylons placed 20 ft apart Char lie Sotich designed event has directed time has held West Baden uses two helium-filled balloons strings pylons seems work well since models usually damaged hitting string balloon might hitting substantial marker easily moved out onto NEW Sleeve Puller -$795 BearIng Puller -$695 GZP C NEW 1 dia aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wing-structure 2024 alum tube 24 long socket 12 long $8gSIsei ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone espanding brass ring grips sleeve bearing 10 new 60s 17MM rear bearing *Speclal* Both $1395 Gator RIG Products 3713 Pompano Dr Pensacola FL 32514 Ptione AC 904 476-8639 floor half-hour periods held twohour intervals event scheduled Two persons required run event timer stands line balloon strings judge start end required two laps second judge stands can see model does turn inside either pylon Indoor Payload Yep being tried Chicago area Del Ogren Don Lindley making demonstration flights can rules simple model has maximum span overall length limi tation 12-in model must carry ping-pong ball payload maximum duration wins ping-pong ball weighs three grams typical model weight gram photo Don Lindley shows off demo model straight forward design similar layout Pennypiane models Another fun class Some recent columns have reported various unusual different classes have flown club meetings small contests such event surfaced West Baden one-design event promoted Chuck Markos uses 18-in-span model built plans furnished Chuck uses same prop assembly AMA Cub photo shows models contest announcement Cash Bash event consists repeated mass launches first model land being eliminated Rewind launch called start lingly short time after last model lands event won Aaron Markos competition gunning him sev eral models inscribed Beat Aaron didnt work spirit models easily adjusted fly very well getting well over minute per flight Bud Tenny PO Box 545 Richardson IX 75080 FF Old-Timers/Haught Continued naqe 70 Goon 75-in-span single-wheeler now available kit form Fred Lets aware possible dis covery other designs period may some sleepers still out Catalogs can never have too much information hand concerning hobby Most us maintain lists catalogs OldTimer supplies no other reason able refer others sources meeting needs couple latest acquisi tions worthy additions Free Flighter s library Otto Bernhard 77 Products 17119 South Harvard Blvd Gardena CA 90247 puts out excellent publication ignition-engine enthusiast As know Otto has converting glow en gines ignition years both Old-Timer use general RC flying offers complete range OS Max con versions 15 35 cu displacement FF RC versions 15 fourcycle 60s addition Otto produces 77 Special based powerful Merco 61 refinements porting polishing cooling choice carburetors catalog includes good selection ignition accessories including coils con densers engine dethermalizer timers spark plugs SAE 70 oil neoprene goods heavy-duty silk RC fliers 77 Products also offers transistorized ig nition system elimiantes troublesome electrical noises exert un wanted influences radio control systems As isnt enough catalog con tains section running ignition engine complete wiring diagrams troubleshooting section Wait theres Otto authored series articles Model Builder magazine reprinted full wealth information enjoyable reading two bucks John Morrill producer Hornet 19 Simplex 25 has other catalog Simplex 25s out production moment another run still possibility John does produce some other items inter est Free Flighters including Sidewinder rubber motor winder optional turns counter Simplex torque-actuated front end Wakefield Mulvihill rubber models precision shafting popular modeling sizes Contact Simplex 143 Richmond St El Segundo CA 90245 Down under Once hear Ron Magill 4207 Great North Road Glen Eden Auckland 8 New Zealand getting Old-Timer Towline Gliders Ron looking plans source came mind Frank Zaics book Model Glider Design really loaded formation gliders Written back 1944 Frank serving Army book deals aspects O-T gliders including theory design construction tech164 Model Aviation WING TUBE & SOCKETS See Dealer Order Direct Include 75 Per Item UPS 115 SCALE Golden Era biplanes will come alive smooth flying easy building flying machine Its big enough catch attention yet small enough use everyday glow engine 657 N E 168th Street Miami Florida 33180 Telephone 935-1436 KIT FEATURES Machined die cut balsa select plywood hardwoods Hardware package Pre-bent landing gear cabine wire Vacuum formed ABS cowl aieleron caps gas cover Mylar decals Full size plans instruction book including isometric drawings SPECIFICATIONS 1/5 Scale 72in Span Area 1530 sqin 4 channel Radio 61-12 Engine Weight 12 lbs Fuse 54 1/2 nique materials finishes flying de thermalizing Also included several de signs could probably documented fall SAM time frame impressive sections book view detailed descriptions sketches building covering methods book could well used textbook classes model airplanes great help answering questions ginners field time time Get copy AMAs Supply Service Department AMA HQ $450 Plotting airfoils Last column published pair Lanzo airfoils along co ordinates didnt give much thought time have mind jolted some questions few individuals age full-size plans plotted airfoil coordinates Plotting air foil desired chord simple task made simpler advent elec tronic calculators coordinate chart has three vertical columns left column labeled % refers locations vari ous points horizontal base line laid out desired chord dimension Zero leading edge 100 trailing edge other points falling per centage chord indicated column labeled Upper indicates point above base line expressed dimension per centage chord located its per centage chord location Points established become connecting points upper air foil surface Lower column also dicates point above base line unless negative number case plotted below base line points become connecting points lower airfoil surface Thus airfoil coordinate chart positive numbers would indi cate airfoil undercamber chart negative numbers r' column would indicate symmetrical semi-symmetrical airfoil final step connect points mooth flowing line using French curves lent strip wood similar aid fact hat numbers coordinate chart refer o percentage selected chord allows sn airfoil desired chord accu rately reproduced old days used graph paper aid minimizing mathematical calculations men tioned earlier electronic pocket calcula tor saves work makes fun youve reproducing airfoils drawing around shoe sole try method predictable results Clarence Haught 3226 Honeysuckle Dr Coeur dAlene ID 83814 Indoor Champs/Clemens Continued page 73 topped ninth last 1084 two-flight total 136 sec easy first place new Cat III record Bob Larsh finished second 116 Dick Pi vitt taking third 946 Bryan Fulmer Senior competition himself winning 1148 Paul Loucka took Junior event 88 sec onds closely pressed Aaron Markos 852 Third Junior Dave Brown 52 sec majestic floaters ultra-light mi crofilm models made first official ap pearance starting noon FAI FID AMA Hand-Launched Stick competitions got underway FlD flown six rounds two hours four rounds sched uled Monday final two Tues day afternoon end meet event also served regional FAI com petition help select next US FAL Indoor Team fact added keenness flying Larry Cailliau California just FlD meet served notice man hot hand put up first-round flight 3323 Less min ute behind him Ron Higgs Canada excellent 3251 Akrons Bill Hul bert third-highest time Round 3 128 Round Two saw Cailliau again lead field posted 3255 flight Close hind him Dick Doig Detroit 3219 Bill Hulbert stayed trans-half-hour pace 3102 Attrition crowded air space taking its toll mid-afternoon Some FIDs outclimbed site lodged steel beams beneath 200-ft-dia atrium dome others became victims mid air collisions spiraling slowly down en tangled second model Round Three found Larry Cailliau rubbing 3532 effort Jim Richmond finally uncorking fine 3510 flight after uneventful times first two rounds Third-best Round Three Stan Chil tons 3241 Round Four final day Cailliaus lead challenged Cezar Banks put up 3440 lead fliers Stan Chilton 3252 Richmond 3219 Ron Ganser 3210 Cailliau dropped off earlier pace 3 155 completion four six scheduled rounds look best twoflight totals top five showed Cailliau leading 6855 Just less 1 /2 mm behind him Richmond 6729 Chilton third 6531 Higgs fourth 6357 Doig fifth 6327 closelyfought battle indeed Competing amidst F ID ships AMA Stick models built maximum allowable wing area 300 sq Goliaths Dick Doig put up two flights over 39 minutes best 3927 earned him welldeserved first place Second went Stan Chilton 3449 flight third place taken Dick Obarskis big floater high time 3241 Junior/Senior-combined class Tom Norell won 2113 Mike Clem took second 2 113 Paul Loucka third 2019 what sight made during height competition As eight microfilm birds airborne together circling left super-slow motion long propellers turning mindbending 45 rpm slower sight will soon forgotten fortunate enough have day 81-year-old domed atrium Action began early7 amon Tuesday morning start 3/2-hr period scheduled two ROG Cabin events ManOctober 1983 165
Edition: Model Aviation - 1983/10
Page Numbers: 70, 164, 165
Free Flight OLD- TIMER Clarence Haught NEW OLD-TIMERS name defi nition Old-Timer enthusiasts con cerned advancing state art rather content savoring flavor Free Flight started observation further supported lack popularity SAM special event entitled Old Ruler permits builder design new model under 1941 rules flown special event spirit Old-Timer Free Flight Today tend think terms established lists familiar designs have diminished down relatively few good-performing models tend forget just today modem Free Flight curious modelers rarely build published plans kits must design own matter did well-established models come Obviously emerging victors contest circuit result fortunate encounter strong thermal surviving designs multitude designsgood bad Peter Nadrowski flew two Old-Timers back 1932-34 era powered Brown Jr engines swinging 14-in props 8-ft span other 71/2 ft Weights around six lb Covering silk clear colored dope Note patriotic color schemes plug-together wings dont know sure Peter took photos flies RC models today designing own planes just did two originals back Free Flight days indifferentthat never noticed right people what about others lurking out attics barns Once someone sends photo interesting old models like ones presented Peter Nodrowski Chicopee MA examples own design still has good information details models could no doubt docu mented age thus qualify SAM competitions probably examples good-flying designs just waiting discovered SAM rules specify models designed kitted published before December 31 1942 key word statement designed SAM provides just sort thing through approval its executive com mittee fact executive committee just approved another Antique-class model Goon designed 1938 Fred Lemberg 2426 Bolker Dr Port Hueneme CA 93401 Continued page 164 70 Model Aviation S Bill Krecek hotds Baby Duration rubber-power model Californias MileMartin Gettig sends photo power department nose Square flying site design Felix Guttman well-known Thisplanea Cox TO 049 converted ignition Bruce Chandler ex shows fine craftsmanship Small rubber jobs like provide greatposed Ignition points Super Cyclone type appear large deal fun investment wonders trimming techcomparison engine Open points easy inspect maintain niquel Photo Mikkelsonbut suffer susceptibility oil dirt fouling TIGER TAIL 4 Ron Chidgeys latest beat series little larger lighter slower retains honest flight character tistics its predecessors Especially recommended sportsman ad vanced pattern also good choice turn-around pattern Plans construction hints $995 WELLER 3 BLADE PROP very stiff molded fiberglas propellor England Its efficient design allows substantial reduction noise level actually improving per formance $2000 NEW NEW CLAMP IT FOREVER STAINLESS STEEL PIPE CLAMPS Light strong Low-profile selflocking 3116 width wont cut silicone couplers Pkg 4 clamps -$295 FF Indoor5enny Continued aqe 162 week same Folkerts Racer won last year However model ferocious zoom placed near top 100-ft site time passed second pylon second lap appeared much faster Butchs Fokker looked almost uncontrollaLle other end spectrum Susan Arak added wheels AMA Cub turned time 1454 seconds model quite docile Whats needed Since Ive tried event surely am qualified specu late So suggest following design con siderations I The model should light pos sible maximize acceleration minimize lift required 2 The airfoils should chosen fof low lift low drag seems likely tail surfaces should contribute lift help control zoom 3 Flight adjustments must work hold constant flight-circle diameter close pylons possible 4 Since model must ROG special attention should given takeoff assure repeatable direction control launch model veers during takeoff will miss rounding both pylons circle will have wider include both pylons CD hints Event Director needs furnish two pylons placed 20 ft apart Char lie Sotich designed event has directed time has held West Baden uses two helium-filled balloons strings pylons seems work well since models usually damaged hitting string balloon might hitting substantial marker easily moved out onto NEW Sleeve Puller -$795 BearIng Puller -$695 GZP C NEW 1 dia aluminum alloy tubing plug-in wings Included pair special slip-fit phenolic sockets build wing-structure 2024 alum tube 24 long socket 12 long $8gSIsei ENGINE SLEEVE & BEARING PULLER Pull tight sleeves bearings easily damage Cone cone espanding brass ring grips sleeve bearing 10 new 60s 17MM rear bearing *Speclal* Both $1395 Gator RIG Products 3713 Pompano Dr Pensacola FL 32514 Ptione AC 904 476-8639 floor half-hour periods held twohour intervals event scheduled Two persons required run event timer stands line balloon strings judge start end required two laps second judge stands can see model does turn inside either pylon Indoor Payload Yep being tried Chicago area Del Ogren Don Lindley making demonstration flights can rules simple model has maximum span overall length limi tation 12-in model must carry ping-pong ball payload maximum duration wins ping-pong ball weighs three grams typical model weight gram photo Don Lindley shows off demo model straight forward design similar layout Pennypiane models Another fun class Some recent columns have reported various unusual different classes have flown club meetings small contests such event surfaced West Baden one-design event promoted Chuck Markos uses 18-in-span model built plans furnished Chuck uses same prop assembly AMA Cub photo shows models contest announcement Cash Bash event consists repeated mass launches first model land being eliminated Rewind launch called start lingly short time after last model lands event won Aaron Markos competition gunning him sev eral models inscribed Beat Aaron didnt work spirit models easily adjusted fly very well getting well over minute per flight Bud Tenny PO Box 545 Richardson IX 75080 FF Old-Timers/Haught Continued naqe 70 Goon 75-in-span single-wheeler now available kit form Fred Lets aware possible dis covery other designs period may some sleepers still out Catalogs can never have too much information hand concerning hobby Most us maintain lists catalogs OldTimer supplies no other reason able refer others sources meeting needs couple latest acquisi tions worthy additions Free Flighter s library Otto Bernhard 77 Products 17119 South Harvard Blvd Gardena CA 90247 puts out excellent publication ignition-engine enthusiast As know Otto has converting glow en gines ignition years both Old-Timer use general RC flying offers complete range OS Max con versions 15 35 cu displacement FF RC versions 15 fourcycle 60s addition Otto produces 77 Special based powerful Merco 61 refinements porting polishing cooling choice carburetors catalog includes good selection ignition accessories including coils con densers engine dethermalizer timers spark plugs SAE 70 oil neoprene goods heavy-duty silk RC fliers 77 Products also offers transistorized ig nition system elimiantes troublesome electrical noises exert un wanted influences radio control systems As isnt enough catalog con tains section running ignition engine complete wiring diagrams troubleshooting section Wait theres Otto authored series articles Model Builder magazine reprinted full wealth information enjoyable reading two bucks John Morrill producer Hornet 19 Simplex 25 has other catalog Simplex 25s out production moment another run still possibility John does produce some other items inter est Free Flighters including Sidewinder rubber motor winder optional turns counter Simplex torque-actuated front end Wakefield Mulvihill rubber models precision shafting popular modeling sizes Contact Simplex 143 Richmond St El Segundo CA 90245 Down under Once hear Ron Magill 4207 Great North Road Glen Eden Auckland 8 New Zealand getting Old-Timer Towline Gliders Ron looking plans source came mind Frank Zaics book Model Glider Design really loaded formation gliders Written back 1944 Frank serving Army book deals aspects O-T gliders including theory design construction tech164 Model Aviation WING TUBE & SOCKETS See Dealer Order Direct Include 75 Per Item UPS 115 SCALE Golden Era biplanes will come alive smooth flying easy building flying machine Its big enough catch attention yet small enough use everyday glow engine 657 N E 168th Street Miami Florida 33180 Telephone 935-1436 KIT FEATURES Machined die cut balsa select plywood hardwoods Hardware package Pre-bent landing gear cabine wire Vacuum formed ABS cowl aieleron caps gas cover Mylar decals Full size plans instruction book including isometric drawings SPECIFICATIONS 1/5 Scale 72in Span Area 1530 sqin 4 channel Radio 61-12 Engine Weight 12 lbs Fuse 54 1/2 nique materials finishes flying de thermalizing Also included several de signs could probably documented fall SAM time frame impressive sections book view detailed descriptions sketches building covering methods book could well used textbook classes model airplanes great help answering questions ginners field time time Get copy AMAs Supply Service Department AMA HQ $450 Plotting airfoils Last column published pair Lanzo airfoils along co ordinates didnt give much thought time have mind jolted some questions few individuals age full-size plans plotted airfoil coordinates Plotting air foil desired chord simple task made simpler advent elec tronic calculators coordinate chart has three vertical columns left column labeled % refers locations vari ous points horizontal base line laid out desired chord dimension Zero leading edge 100 trailing edge other points falling per centage chord indicated column labeled Upper indicates point above base line expressed dimension per centage chord located its per centage chord location Points established become connecting points upper air foil surface Lower column also dicates point above base line unless negative number case plotted below base line points become connecting points lower airfoil surface Thus airfoil coordinate chart positive numbers would indi cate airfoil undercamber chart negative numbers r' column would indicate symmetrical semi-symmetrical airfoil final step connect points mooth flowing line using French curves lent strip wood similar aid fact hat numbers coordinate chart refer o percentage selected chord allows sn airfoil desired chord accu rately reproduced old days used graph paper aid minimizing mathematical calculations men tioned earlier electronic pocket calcula tor saves work makes fun youve reproducing airfoils drawing around shoe sole try method predictable results Clarence Haught 3226 Honeysuckle Dr Coeur dAlene ID 83814 Indoor Champs/Clemens Continued page 73 topped ninth last 1084 two-flight total 136 sec easy first place new Cat III record Bob Larsh finished second 116 Dick Pi vitt taking third 946 Bryan Fulmer Senior competition himself winning 1148 Paul Loucka took Junior event 88 sec onds closely pressed Aaron Markos 852 Third Junior Dave Brown 52 sec majestic floaters ultra-light mi crofilm models made first official ap pearance starting noon FAI FID AMA Hand-Launched Stick competitions got underway FlD flown six rounds two hours four rounds sched uled Monday final two Tues day afternoon end meet event also served regional FAI com petition help select next US FAL Indoor Team fact added keenness flying Larry Cailliau California just FlD meet served notice man hot hand put up first-round flight 3323 Less min ute behind him Ron Higgs Canada excellent 3251 Akrons Bill Hul bert third-highest time Round 3 128 Round Two saw Cailliau again lead field posted 3255 flight Close hind him Dick Doig Detroit 3219 Bill Hulbert stayed trans-half-hour pace 3102 Attrition crowded air space taking its toll mid-afternoon Some FIDs outclimbed site lodged steel beams beneath 200-ft-dia atrium dome others became victims mid air collisions spiraling slowly down en tangled second model Round Three found Larry Cailliau rubbing 3532 effort Jim Richmond finally uncorking fine 3510 flight after uneventful times first two rounds Third-best Round Three Stan Chil tons 3241 Round Four final day Cailliaus lead challenged Cezar Banks put up 3440 lead fliers Stan Chilton 3252 Richmond 3219 Ron Ganser 3210 Cailliau dropped off earlier pace 3 155 completion four six scheduled rounds look best twoflight totals top five showed Cailliau leading 6855 Just less 1 /2 mm behind him Richmond 6729 Chilton third 6531 Higgs fourth 6357 Doig fifth 6327 closelyfought battle indeed Competing amidst F ID ships AMA Stick models built maximum allowable wing area 300 sq Goliaths Dick Doig put up two flights over 39 minutes best 3927 earned him welldeserved first place Second went Stan Chilton 3449 flight third place taken Dick Obarskis big floater high time 3241 Junior/Senior-combined class Tom Norell won 2113 Mike Clem took second 2 113 Paul Loucka third 2019 what sight made during height competition As eight microfilm birds airborne together circling left super-slow motion long propellers turning mindbending 45 rpm slower sight will soon forgotten fortunate enough have day 81-year-old domed atrium Action began early7 amon Tuesday morning start 3/2-hr period scheduled two ROG Cabin events ManOctober 1983 165