FRUSTRATION time delays involved magazine writing drive up wall As write yet Halloween read New Years Eve will probably have passed does make hard timely also take consideration get write other issue time out Nats maybe other special issues come conclu sion cannot contest plugs reports such precious little space year maybe can forgiven doing obituaries mail indicates what want get what am going long can comment before getting am happy give plugs cottage industries provide us what need re sponsibility industries provide current information about services productsincluding prices catalogs am tired being whined after give plug about having given price new revised cat alog have provided copy correctly thing want complain about competition rules write SAM Speaks newsletter SAM Society An tique Modelerswhich group makes rules Old-Timer competition editor Bill Darkow 1237 S Grant St Tacoma WA 98405 join SAM get SAM Speaks newsletter send $10 Bob Dodds 209 Summerside P1 Encinitas CA 92024 got off chest feel better Early reports 89 SAM Champs held October Las Vegas best ever large pre-entry nearly 300 two-thirds Free Flight John Worth site excellent no trees corn potatoes wind almost nonex istent wish could have gone no money vacation time spend Faithful corres pondent Mik Mikkelson sent pair photos Note flying site background Free Flight heaven reminds NFFS Nationals Lawrenceville IL June 1989 considered great success attending under stand going again 1990 interest us because will have lots Old-Timer Nostalgia events again Anyway spies tells site weather great Executive Inn food great hotel also housed convention cheerleaders morning breakfast Free Flighters watched cheer leaders parade dining room FFer said stage whisper Maybe dead have number letters asking help locating silk puzzles Kustom Kraftsmanship has ad issue magazine mentioning silk other fine things have fine things $1 catalog address too weak look up Box 3010 Fallbrook CA 92028 major distributor source silk country seems Model Covering Company 2320 Ocean Parkway Brooklyn NY 11223 tele phone 1-718/375-1223 Kustom Kraftsmanships ad also mentions re sistor high-tension leads point out cause type letter frequently received someone says has stored daddys Super Borigmi 60 sock drawer Holy Bible 40 years now wants use RC model probably ARF worries about radio interference type person has bothered notice Doe Mathews covers Old-Timer RC matters writes answer no less authority friend Bill Schmidtto put 10K thats 10000 2 folks RMcM resistor high-tension lead near spark plug makes sense have spark coil near engine receiver near en gine will Another source high-tension leads re sistors installed Argo-USA 3229 Dianora Dr Palos Verdes CA 90274 telephone 12 13/377-6 186 Argo-USA also source replica Orwick engines diesel fans Elfin 249cc real antique-looking Oliver Bat tleaxe 20cc Battleaxe Twin 40cc Now can live engine called Bat tlcaxe has bit controversy about use diesels SAM competition waiting see what think about want models car home clothes hair smell like diesel fuel have English like diesels have lost colonies think connection Fresno Model Airplane Company has new owner new address SASE sent Fresno Model Airplane Co 3858 Maywood Dr North Fresno CA 93703 telephone 1-209/2687593 will get listing line replica kits favorite Old-Timer Rubber models Some Miss Worlds Fair Super Snooper Flying Aces Sky Gull New owner Steve Gunther says will continue lines reputation quality kits models fly am lucky have good modern stan dards hobby shop about mile live support can still have rely catalogs cottage industries much supplies recent years impor Continued page 168 62 Model Aviation Free Flight Old-Timers Bill Baker 1902 Pecer Pan Norman OK 73072 folks roasting middle desert look like theyre actually having good time US British modelers celebrated 50th anniversary 1939 Wakefield contest doing again Taft CA last summer Judging smiles everybody won Mikkelson plc Bud Warren traveled Michigan fly Playboy Jr SAM Champs site Ne vada Power front-rotor O&R 23 Photog rapher Mik Mikkelson says made 33mm flight Texaco windless day plane barely got off field Michigans Joe Macay flew Jim Bohash designed Wakefield 89 SAM Champs Tennesseean Steve Payne flew Lamb Climber 1988 King Orange lnternats kit popular design made Hobby Horn see column Photo Charles Alba 0 High Speed Airtronics MA-3 electronic speed controller specially designed electric powered aircrafL Solid state componentry design ensuresrou instant throttle control response improved RI performance An efficient Proportional Electronic Throffle Control enhances MA-3s supeitompact size weight eliminating additional battery servo switch Because operates sep arately receiver MA-3 has greater flexibility integrated-type units can used variety autraft MA-3 features Power MOS FET Amplifier Transistors low voltage loss convenient Battery ltage Regulator An Automatic Cut Off system reduces voltage elec tric motor whenever NiCd voltage decreases preset levels An advanced Heat Protected Amplifier interrupts current flow motor protect cimuit components overheating 96330 MA-3 Specifications Pswer Supply 4 Cell 48 7 Cell 84 Volt NiCd pack Voltage Loss 0006 Volts Amp FET Current Ratings Continuous Maximum Current 148 Amps Instantaneous Maximum Currenc580 Amps Dimensions 142 x 116 x 067 Weight 063 oz less switch connectors Continuous Current Rating 23 Amps cooling Intended Use Electric Powered Aircraft Adjustment Type Off-Position Trimmer Motor Size 280 540 Class Ferrite Motors Compatible Airtronics AM FM systems MA-3 speed controller accom modates 280 540 size ferrite electric motors utilizing 4-7 cell battery packs Get high speed ffight performance Airtronics MA-3 electronic speed controller SetThe Standard ~AIRTRONICS INC 11 Autry Irvine CA 92718714 830-8769 information about Airtronics quality pmducts please call write address above *Not compatible PCM Receivers structions Walt says like I Spread some newspapers garage floor 2 Lay down yard fiberglass cloth over papers spreading out weighting edges keep weave squarehut stretchedand covering cloth necessary positioning weights 3 Spray light coat nitrate dope clear lacquer want to penetrate yarns enough adhere together weave-crossing points Allow dry overnight best results its dry roll up cloth storage would sheets tissue silk span 4 Cutting cloth shape now joy can use scissors steel rule razor blade wont fray warp out shape cut 5 Apply cloth cutouts thinner dope epoxy cyanoacrylate CyA cement depend ing preparation undersurface intended end use Walt credits Rex Hinson telling him about process homewardbound airline flight 84 FAI team selec tion finals held Seguin TX interesting enlightening appears like some industrious fellow large unused garage floor plenty hardwood frames could produce doped fiberglass stuff commercially save rest us lot build ing time Hint Hint Well columnist needs some building time See downwind again couple months FF Old-Timers/Baker Continued page 62 tant has Hobby Horn adver tise magazine will give ad dress anyway PO Box 2212 Westminster CA 92684 telephone 1-714/893-8311 catalog will cost $2or its free order upon request interesting thing about Hobby Horn catalog contains sort coalition ar eas modeling interest Electric RC RC Sail planes FF RC Old-Timers modern Free Flight interesting because think Free Flight-type person going dabble RC will likely Sailplanes Electrics think RC types likely show some interest background Free Flight found ranks flying Soaring models Anyway have lots things catalog FF flier needs found lo cal hobby shop ads magazine feature kits P&W Midway Model Co apparently own kit line Mid way kits so-called full kits P&W ones can bought either full means sheet stripwood included partial means ribs formers curved tip parts come plans think either way OK quality stripwood general better what will able get locally recommend full kit unless have lots good wood hand Midway kits have seen fine qual ity want point out according Hobby Horns catalog have apparently taken over line once made 4-Ks including 4- 6-ft-span versions Buzzard Bombshell Lamb Climber popular OT Rubber Stick model As aside would like say have just test flown Midway kit Ultra Mk IV Elec tric RC Sailplane best Elec tric Sailplane have flown good Sailplane have flownand have flown bunch first Electric Sailplane recom mend Carl Goldberg Models Electra Mk IV fine kit great flier Now finish up plug t should have written long ago because importance OT FF kits other supplies source P&W kits simply peerless quality ribs formers cannot pro duce parts accuracy degree finish accurate notches stringers spars just ll right structures some instances much im proved over original Zipper Sail plane Carl Goldberg designs example built round formers crutch frame rather original scheme two built-up sides joined make box formers added re sult truer stronger easier build want make Zipper Sailplaneor anything P&W has kit forI think just good judgement get P&W kit unless S&M coursein case wouldnt dream interfering fun last column December 1989 issue photo Lanzo Stick ran out space before could point out wing held rubberbands going around fuselage Dont will break lower longerons Sometimes did way old days broke lot longerons Put some dow els bits sheet reinforcement hook Continued page 170 168 Model Aviation responding advertisers mention read about Model Aviation LANDER INDUST 1005 19TH ST CT HAVRE MONTANA 59501 406265-6529 BUILDING BOARD 24x72 5ncf 24 X 48 895 mci fri CANADIAN ORDERS ADD 25/o Build straight spending fortune durable high density 1/2' pin surface bonded 3/4 laminated warp free base straight true work surface will last years years SMALL R/C HOBBY DEALERSIIE WE ARE DISTRIBUTOR KEYED TO YOUR PARTICULAR NEEDS information write call Southern Hobby Distributors 256 Madison Blvd Madison TN 37115 615 868-2100 1030 AM 500 PM CST it too late say have Happy New Year FF Indoor/Tenny Continued page 63 full-scale torque ranges greater desired full-scale value adjust length suit desired rotation example Required one ineh-ounce l80 rotation Us ing 0017-dia wire 180/360 x 1543 in-oz l80 1/07715 x 641 Note torque meter has significant margin prevent overstress expense length Using 0015-dia wire 2825-in-long torque wire would give approximately inchounce 1800 rotation very little stress margin Winding theory As rubber motor wound torque will build slowly first more rapidly rubber approaches breaking point Experience will enable feel winding peak torque important rate buildup torque begins build rapidly reduce stretch slowly keep winding practice can keep piling turns holding torque about same Step-by-step winding Before winding mo tor sure properly lubricated motor has used before examine closely evi dence tearing scuffing Mechanically dam aged rubber should used contest flying should fully wound flying sitAFTER YOU DID ALL THE WORK WHY LET YOUR AIRPLANE DO ALL THE FLYING INFO $300BUILD & FLY THE miniMAX YOURSELF AWARDED Grand Champion Reserve Grand Champion Ultralight 1989 Sun-N-Fun Fly-In uation youre short rubber use dam aged motors test flying discussion sumes using 0-rings preserve torque values after winding I Stretch motor four six times its nor mal length 2 Wind slowly steadily watching torque meter torque level starts rise rapidly few additional turns stop winding 3 Hold motor massage knots watching torque level drop torque stabilized resume winding 4 Wind very slowly reduce stretch Try hold torque regular level re ducing stretch distancc between hooks model 5 Massage knots again helping torque relax stable level torque stabi lizes again turn back prop small incre ments until stabilized required launch torque 6 Hook motor model fly 7 After model flying record launch turns launch torque low ceilings also record time until first ceiling contact 8 After model lands stop prop un winding hook motor torque meter again Record landing torque count out turns left 9 Compute turns used divide flight time seconds Multiply 60 get rpm Record flight time landing torque rpm average What numbers mean given model weight prop/model combination can de duce optimum trim level flight torque same landing torque eval Continued page 173 TEAM INC BOX 338M BRADYVILLE TN 37026 16151 765-5397 170 Model Aviation durable skis made lightweight aluminum feature steel spring holds ski rigid flight also elevates axle above ski no modifications cur rent gear wire needed can go wheels skis seconds side ski also has special edge allows excellent tracking icy surfaces available two sizes can purchased trikes just mains order please send check money order $300 shipping handling Add 6% sales tax Minnesota Allow 2 weeks delivery Telephone inquiries call Ron 612-781-7333 NORTHERN 20 30 Trike $2200 Mains $1600 MODELING 40 60 Trike $2400 Mains $1800 PRODUCTSPrices effective January 11990 PO Box 21181 ColumbIa HeIghts MN 55421 781-7333 wing rubberbands peck S//ver-Streak 035 ELECTRIC MOTOR SUPER LIGHT WEIGHT ONLY 26 OZ USES LESS CURRENT TURNS 6-3 PROP 12000 RPM 65 AMPS IDEAL FOR SMALL RIC & FREE FLIGHT MOTOR ONLY $1995 CATALOG #30 O PHONE6 19 448-1818 PeckPoIpmers BOX 2498-MA ESA CA 92044 Computer Designed3 Axis Control * Part 103 UltralightEasy Construction * Wood Construction
Edition: Model Aviation - 1990/02
Page Numbers: 62, 168, 170
FRUSTRATION time delays involved magazine writing drive up wall As write yet Halloween read New Years Eve will probably have passed does make hard timely also take consideration get write other issue time out Nats maybe other special issues come conclu sion cannot contest plugs reports such precious little space year maybe can forgiven doing obituaries mail indicates what want get what am going long can comment before getting am happy give plugs cottage industries provide us what need re sponsibility industries provide current information about services productsincluding prices catalogs am tired being whined after give plug about having given price new revised cat alog have provided copy correctly thing want complain about competition rules write SAM Speaks newsletter SAM Society An tique Modelerswhich group makes rules Old-Timer competition editor Bill Darkow 1237 S Grant St Tacoma WA 98405 join SAM get SAM Speaks newsletter send $10 Bob Dodds 209 Summerside P1 Encinitas CA 92024 got off chest feel better Early reports 89 SAM Champs held October Las Vegas best ever large pre-entry nearly 300 two-thirds Free Flight John Worth site excellent no trees corn potatoes wind almost nonex istent wish could have gone no money vacation time spend Faithful corres pondent Mik Mikkelson sent pair photos Note flying site background Free Flight heaven reminds NFFS Nationals Lawrenceville IL June 1989 considered great success attending under stand going again 1990 interest us because will have lots Old-Timer Nostalgia events again Anyway spies tells site weather great Executive Inn food great hotel also housed convention cheerleaders morning breakfast Free Flighters watched cheer leaders parade dining room FFer said stage whisper Maybe dead have number letters asking help locating silk puzzles Kustom Kraftsmanship has ad issue magazine mentioning silk other fine things have fine things $1 catalog address too weak look up Box 3010 Fallbrook CA 92028 major distributor source silk country seems Model Covering Company 2320 Ocean Parkway Brooklyn NY 11223 tele phone 1-718/375-1223 Kustom Kraftsmanships ad also mentions re sistor high-tension leads point out cause type letter frequently received someone says has stored daddys Super Borigmi 60 sock drawer Holy Bible 40 years now wants use RC model probably ARF worries about radio interference type person has bothered notice Doe Mathews covers Old-Timer RC matters writes answer no less authority friend Bill Schmidtto put 10K thats 10000 2 folks RMcM resistor high-tension lead near spark plug makes sense have spark coil near engine receiver near en gine will Another source high-tension leads re sistors installed Argo-USA 3229 Dianora Dr Palos Verdes CA 90274 telephone 12 13/377-6 186 Argo-USA also source replica Orwick engines diesel fans Elfin 249cc real antique-looking Oliver Bat tleaxe 20cc Battleaxe Twin 40cc Now can live engine called Bat tlcaxe has bit controversy about use diesels SAM competition waiting see what think about want models car home clothes hair smell like diesel fuel have English like diesels have lost colonies think connection Fresno Model Airplane Company has new owner new address SASE sent Fresno Model Airplane Co 3858 Maywood Dr North Fresno CA 93703 telephone 1-209/2687593 will get listing line replica kits favorite Old-Timer Rubber models Some Miss Worlds Fair Super Snooper Flying Aces Sky Gull New owner Steve Gunther says will continue lines reputation quality kits models fly am lucky have good modern stan dards hobby shop about mile live support can still have rely catalogs cottage industries much supplies recent years impor Continued page 168 62 Model Aviation Free Flight Old-Timers Bill Baker 1902 Pecer Pan Norman OK 73072 folks roasting middle desert look like theyre actually having good time US British modelers celebrated 50th anniversary 1939 Wakefield contest doing again Taft CA last summer Judging smiles everybody won Mikkelson plc Bud Warren traveled Michigan fly Playboy Jr SAM Champs site Ne vada Power front-rotor O&R 23 Photog rapher Mik Mikkelson says made 33mm flight Texaco windless day plane barely got off field Michigans Joe Macay flew Jim Bohash designed Wakefield 89 SAM Champs Tennesseean Steve Payne flew Lamb Climber 1988 King Orange lnternats kit popular design made Hobby Horn see column Photo Charles Alba 0 High Speed Airtronics MA-3 electronic speed controller specially designed electric powered aircrafL Solid state componentry design ensuresrou instant throttle control response improved RI performance An efficient Proportional Electronic Throffle Control enhances MA-3s supeitompact size weight eliminating additional battery servo switch Because operates sep arately receiver MA-3 has greater flexibility integrated-type units can used variety autraft MA-3 features Power MOS FET Amplifier Transistors low voltage loss convenient Battery ltage Regulator An Automatic Cut Off system reduces voltage elec tric motor whenever NiCd voltage decreases preset levels An advanced Heat Protected Amplifier interrupts current flow motor protect cimuit components overheating 96330 MA-3 Specifications Pswer Supply 4 Cell 48 7 Cell 84 Volt NiCd pack Voltage Loss 0006 Volts Amp FET Current Ratings Continuous Maximum Current 148 Amps Instantaneous Maximum Currenc580 Amps Dimensions 142 x 116 x 067 Weight 063 oz less switch connectors Continuous Current Rating 23 Amps cooling Intended Use Electric Powered Aircraft Adjustment Type Off-Position Trimmer Motor Size 280 540 Class Ferrite Motors Compatible Airtronics AM FM systems MA-3 speed controller accom modates 280 540 size ferrite electric motors utilizing 4-7 cell battery packs Get high speed ffight performance Airtronics MA-3 electronic speed controller SetThe Standard ~AIRTRONICS INC 11 Autry Irvine CA 92718714 830-8769 information about Airtronics quality pmducts please call write address above *Not compatible PCM Receivers structions Walt says like I Spread some newspapers garage floor 2 Lay down yard fiberglass cloth over papers spreading out weighting edges keep weave squarehut stretchedand covering cloth necessary positioning weights 3 Spray light coat nitrate dope clear lacquer want to penetrate yarns enough adhere together weave-crossing points Allow dry overnight best results its dry roll up cloth storage would sheets tissue silk span 4 Cutting cloth shape now joy can use scissors steel rule razor blade wont fray warp out shape cut 5 Apply cloth cutouts thinner dope epoxy cyanoacrylate CyA cement depend ing preparation undersurface intended end use Walt credits Rex Hinson telling him about process homewardbound airline flight 84 FAI team selec tion finals held Seguin TX interesting enlightening appears like some industrious fellow large unused garage floor plenty hardwood frames could produce doped fiberglass stuff commercially save rest us lot build ing time Hint Hint Well columnist needs some building time See downwind again couple months FF Old-Timers/Baker Continued page 62 tant has Hobby Horn adver tise magazine will give ad dress anyway PO Box 2212 Westminster CA 92684 telephone 1-714/893-8311 catalog will cost $2or its free order upon request interesting thing about Hobby Horn catalog contains sort coalition ar eas modeling interest Electric RC RC Sail planes FF RC Old-Timers modern Free Flight interesting because think Free Flight-type person going dabble RC will likely Sailplanes Electrics think RC types likely show some interest background Free Flight found ranks flying Soaring models Anyway have lots things catalog FF flier needs found lo cal hobby shop ads magazine feature kits P&W Midway Model Co apparently own kit line Mid way kits so-called full kits P&W ones can bought either full means sheet stripwood included partial means ribs formers curved tip parts come plans think either way OK quality stripwood general better what will able get locally recommend full kit unless have lots good wood hand Midway kits have seen fine qual ity want point out according Hobby Horns catalog have apparently taken over line once made 4-Ks including 4- 6-ft-span versions Buzzard Bombshell Lamb Climber popular OT Rubber Stick model As aside would like say have just test flown Midway kit Ultra Mk IV Elec tric RC Sailplane best Elec tric Sailplane have flown good Sailplane have flownand have flown bunch first Electric Sailplane recom mend Carl Goldberg Models Electra Mk IV fine kit great flier Now finish up plug t should have written long ago because importance OT FF kits other supplies source P&W kits simply peerless quality ribs formers cannot pro duce parts accuracy degree finish accurate notches stringers spars just ll right structures some instances much im proved over original Zipper Sail plane Carl Goldberg designs example built round formers crutch frame rather original scheme two built-up sides joined make box formers added re sult truer stronger easier build want make Zipper Sailplaneor anything P&W has kit forI think just good judgement get P&W kit unless S&M coursein case wouldnt dream interfering fun last column December 1989 issue photo Lanzo Stick ran out space before could point out wing held rubberbands going around fuselage Dont will break lower longerons Sometimes did way old days broke lot longerons Put some dow els bits sheet reinforcement hook Continued page 170 168 Model Aviation responding advertisers mention read about Model Aviation LANDER INDUST 1005 19TH ST CT HAVRE MONTANA 59501 406265-6529 BUILDING BOARD 24x72 5ncf 24 X 48 895 mci fri CANADIAN ORDERS ADD 25/o Build straight spending fortune durable high density 1/2' pin surface bonded 3/4 laminated warp free base straight true work surface will last years years SMALL R/C HOBBY DEALERSIIE WE ARE DISTRIBUTOR KEYED TO YOUR PARTICULAR NEEDS information write call Southern Hobby Distributors 256 Madison Blvd Madison TN 37115 615 868-2100 1030 AM 500 PM CST it too late say have Happy New Year FF Indoor/Tenny Continued page 63 full-scale torque ranges greater desired full-scale value adjust length suit desired rotation example Required one ineh-ounce l80 rotation Us ing 0017-dia wire 180/360 x 1543 in-oz l80 1/07715 x 641 Note torque meter has significant margin prevent overstress expense length Using 0015-dia wire 2825-in-long torque wire would give approximately inchounce 1800 rotation very little stress margin Winding theory As rubber motor wound torque will build slowly first more rapidly rubber approaches breaking point Experience will enable feel winding peak torque important rate buildup torque begins build rapidly reduce stretch slowly keep winding practice can keep piling turns holding torque about same Step-by-step winding Before winding mo tor sure properly lubricated motor has used before examine closely evi dence tearing scuffing Mechanically dam aged rubber should used contest flying should fully wound flying sitAFTER YOU DID ALL THE WORK WHY LET YOUR AIRPLANE DO ALL THE FLYING INFO $300BUILD & FLY THE miniMAX YOURSELF AWARDED Grand Champion Reserve Grand Champion Ultralight 1989 Sun-N-Fun Fly-In uation youre short rubber use dam aged motors test flying discussion sumes using 0-rings preserve torque values after winding I Stretch motor four six times its nor mal length 2 Wind slowly steadily watching torque meter torque level starts rise rapidly few additional turns stop winding 3 Hold motor massage knots watching torque level drop torque stabilized resume winding 4 Wind very slowly reduce stretch Try hold torque regular level re ducing stretch distancc between hooks model 5 Massage knots again helping torque relax stable level torque stabi lizes again turn back prop small incre ments until stabilized required launch torque 6 Hook motor model fly 7 After model flying record launch turns launch torque low ceilings also record time until first ceiling contact 8 After model lands stop prop un winding hook motor torque meter again Record landing torque count out turns left 9 Compute turns used divide flight time seconds Multiply 60 get rpm Record flight time landing torque rpm average What numbers mean given model weight prop/model combination can de duce optimum trim level flight torque same landing torque eval Continued page 173 TEAM INC BOX 338M BRADYVILLE TN 37026 16151 765-5397 170 Model Aviation durable skis made lightweight aluminum feature steel spring holds ski rigid flight also elevates axle above ski no modifications cur rent gear wire needed can go wheels skis seconds side ski also has special edge allows excellent tracking icy surfaces available two sizes can purchased trikes just mains order please send check money order $300 shipping handling Add 6% sales tax Minnesota Allow 2 weeks delivery Telephone inquiries call Ron 612-781-7333 NORTHERN 20 30 Trike $2200 Mains $1600 MODELING 40 60 Trike $2400 Mains $1800 PRODUCTSPrices effective January 11990 PO Box 21181 ColumbIa HeIghts MN 55421 781-7333 wing rubberbands peck S//ver-Streak 035 ELECTRIC MOTOR SUPER LIGHT WEIGHT ONLY 26 OZ USES LESS CURRENT TURNS 6-3 PROP 12000 RPM 65 AMPS IDEAL FOR SMALL RIC & FREE FLIGHT MOTOR ONLY $1995 CATALOG #30 O PHONE6 19 448-1818 PeckPoIpmers BOX 2498-MA ESA CA 92044 Computer Designed3 Axis Control * Part 103 UltralightEasy Construction * Wood Construction
Edition: Model Aviation - 1990/02
Page Numbers: 62, 168, 170
FRUSTRATION time delays involved magazine writing drive up wall As write yet Halloween read New Years Eve will probably have passed does make hard timely also take consideration get write other issue time out Nats maybe other special issues come conclu sion cannot contest plugs reports such precious little space year maybe can forgiven doing obituaries mail indicates what want get what am going long can comment before getting am happy give plugs cottage industries provide us what need re sponsibility industries provide current information about services productsincluding prices catalogs am tired being whined after give plug about having given price new revised cat alog have provided copy correctly thing want complain about competition rules write SAM Speaks newsletter SAM Society An tique Modelerswhich group makes rules Old-Timer competition editor Bill Darkow 1237 S Grant St Tacoma WA 98405 join SAM get SAM Speaks newsletter send $10 Bob Dodds 209 Summerside P1 Encinitas CA 92024 got off chest feel better Early reports 89 SAM Champs held October Las Vegas best ever large pre-entry nearly 300 two-thirds Free Flight John Worth site excellent no trees corn potatoes wind almost nonex istent wish could have gone no money vacation time spend Faithful corres pondent Mik Mikkelson sent pair photos Note flying site background Free Flight heaven reminds NFFS Nationals Lawrenceville IL June 1989 considered great success attending under stand going again 1990 interest us because will have lots Old-Timer Nostalgia events again Anyway spies tells site weather great Executive Inn food great hotel also housed convention cheerleaders morning breakfast Free Flighters watched cheer leaders parade dining room FFer said stage whisper Maybe dead have number letters asking help locating silk puzzles Kustom Kraftsmanship has ad issue magazine mentioning silk other fine things have fine things $1 catalog address too weak look up Box 3010 Fallbrook CA 92028 major distributor source silk country seems Model Covering Company 2320 Ocean Parkway Brooklyn NY 11223 tele phone 1-718/375-1223 Kustom Kraftsmanships ad also mentions re sistor high-tension leads point out cause type letter frequently received someone says has stored daddys Super Borigmi 60 sock drawer Holy Bible 40 years now wants use RC model probably ARF worries about radio interference type person has bothered notice Doe Mathews covers Old-Timer RC matters writes answer no less authority friend Bill Schmidtto put 10K thats 10000 2 folks RMcM resistor high-tension lead near spark plug makes sense have spark coil near engine receiver near en gine will Another source high-tension leads re sistors installed Argo-USA 3229 Dianora Dr Palos Verdes CA 90274 telephone 12 13/377-6 186 Argo-USA also source replica Orwick engines diesel fans Elfin 249cc real antique-looking Oliver Bat tleaxe 20cc Battleaxe Twin 40cc Now can live engine called Bat tlcaxe has bit controversy about use diesels SAM competition waiting see what think about want models car home clothes hair smell like diesel fuel have English like diesels have lost colonies think connection Fresno Model Airplane Company has new owner new address SASE sent Fresno Model Airplane Co 3858 Maywood Dr North Fresno CA 93703 telephone 1-209/2687593 will get listing line replica kits favorite Old-Timer Rubber models Some Miss Worlds Fair Super Snooper Flying Aces Sky Gull New owner Steve Gunther says will continue lines reputation quality kits models fly am lucky have good modern stan dards hobby shop about mile live support can still have rely catalogs cottage industries much supplies recent years impor Continued page 168 62 Model Aviation Free Flight Old-Timers Bill Baker 1902 Pecer Pan Norman OK 73072 folks roasting middle desert look like theyre actually having good time US British modelers celebrated 50th anniversary 1939 Wakefield contest doing again Taft CA last summer Judging smiles everybody won Mikkelson plc Bud Warren traveled Michigan fly Playboy Jr SAM Champs site Ne vada Power front-rotor O&R 23 Photog rapher Mik Mikkelson says made 33mm flight Texaco windless day plane barely got off field Michigans Joe Macay flew Jim Bohash designed Wakefield 89 SAM Champs Tennesseean Steve Payne flew Lamb Climber 1988 King Orange lnternats kit popular design made Hobby Horn see column Photo Charles Alba 0 High Speed Airtronics MA-3 electronic speed controller specially designed electric powered aircrafL Solid state componentry design ensuresrou instant throttle control response improved RI performance An efficient Proportional Electronic Throffle Control enhances MA-3s supeitompact size weight eliminating additional battery servo switch Because operates sep arately receiver MA-3 has greater flexibility integrated-type units can used variety autraft MA-3 features Power MOS FET Amplifier Transistors low voltage loss convenient Battery ltage Regulator An Automatic Cut Off system reduces voltage elec tric motor whenever NiCd voltage decreases preset levels An advanced Heat Protected Amplifier interrupts current flow motor protect cimuit components overheating 96330 MA-3 Specifications Pswer Supply 4 Cell 48 7 Cell 84 Volt NiCd pack Voltage Loss 0006 Volts Amp FET Current Ratings Continuous Maximum Current 148 Amps Instantaneous Maximum Currenc580 Amps Dimensions 142 x 116 x 067 Weight 063 oz less switch connectors Continuous Current Rating 23 Amps cooling Intended Use Electric Powered Aircraft Adjustment Type Off-Position Trimmer Motor Size 280 540 Class Ferrite Motors Compatible Airtronics AM FM systems MA-3 speed controller accom modates 280 540 size ferrite electric motors utilizing 4-7 cell battery packs Get high speed ffight performance Airtronics MA-3 electronic speed controller SetThe Standard ~AIRTRONICS INC 11 Autry Irvine CA 92718714 830-8769 information about Airtronics quality pmducts please call write address above *Not compatible PCM Receivers structions Walt says like I Spread some newspapers garage floor 2 Lay down yard fiberglass cloth over papers spreading out weighting edges keep weave squarehut stretchedand covering cloth necessary positioning weights 3 Spray light coat nitrate dope clear lacquer want to penetrate yarns enough adhere together weave-crossing points Allow dry overnight best results its dry roll up cloth storage would sheets tissue silk span 4 Cutting cloth shape now joy can use scissors steel rule razor blade wont fray warp out shape cut 5 Apply cloth cutouts thinner dope epoxy cyanoacrylate CyA cement depend ing preparation undersurface intended end use Walt credits Rex Hinson telling him about process homewardbound airline flight 84 FAI team selec tion finals held Seguin TX interesting enlightening appears like some industrious fellow large unused garage floor plenty hardwood frames could produce doped fiberglass stuff commercially save rest us lot build ing time Hint Hint Well columnist needs some building time See downwind again couple months FF Old-Timers/Baker Continued page 62 tant has Hobby Horn adver tise magazine will give ad dress anyway PO Box 2212 Westminster CA 92684 telephone 1-714/893-8311 catalog will cost $2or its free order upon request interesting thing about Hobby Horn catalog contains sort coalition ar eas modeling interest Electric RC RC Sail planes FF RC Old-Timers modern Free Flight interesting because think Free Flight-type person going dabble RC will likely Sailplanes Electrics think RC types likely show some interest background Free Flight found ranks flying Soaring models Anyway have lots things catalog FF flier needs found lo cal hobby shop ads magazine feature kits P&W Midway Model Co apparently own kit line Mid way kits so-called full kits P&W ones can bought either full means sheet stripwood included partial means ribs formers curved tip parts come plans think either way OK quality stripwood general better what will able get locally recommend full kit unless have lots good wood hand Midway kits have seen fine qual ity want point out according Hobby Horns catalog have apparently taken over line once made 4-Ks including 4- 6-ft-span versions Buzzard Bombshell Lamb Climber popular OT Rubber Stick model As aside would like say have just test flown Midway kit Ultra Mk IV Elec tric RC Sailplane best Elec tric Sailplane have flown good Sailplane have flownand have flown bunch first Electric Sailplane recom mend Carl Goldberg Models Electra Mk IV fine kit great flier Now finish up plug t should have written long ago because importance OT FF kits other supplies source P&W kits simply peerless quality ribs formers cannot pro duce parts accuracy degree finish accurate notches stringers spars just ll right structures some instances much im proved over original Zipper Sail plane Carl Goldberg designs example built round formers crutch frame rather original scheme two built-up sides joined make box formers added re sult truer stronger easier build want make Zipper Sailplaneor anything P&W has kit forI think just good judgement get P&W kit unless S&M coursein case wouldnt dream interfering fun last column December 1989 issue photo Lanzo Stick ran out space before could point out wing held rubberbands going around fuselage Dont will break lower longerons Sometimes did way old days broke lot longerons Put some dow els bits sheet reinforcement hook Continued page 170 168 Model Aviation responding advertisers mention read about Model Aviation LANDER INDUST 1005 19TH ST CT HAVRE MONTANA 59501 406265-6529 BUILDING BOARD 24x72 5ncf 24 X 48 895 mci fri CANADIAN ORDERS ADD 25/o Build straight spending fortune durable high density 1/2' pin surface bonded 3/4 laminated warp free base straight true work surface will last years years SMALL R/C HOBBY DEALERSIIE WE ARE DISTRIBUTOR KEYED TO YOUR PARTICULAR NEEDS information write call Southern Hobby Distributors 256 Madison Blvd Madison TN 37115 615 868-2100 1030 AM 500 PM CST it too late say have Happy New Year FF Indoor/Tenny Continued page 63 full-scale torque ranges greater desired full-scale value adjust length suit desired rotation example Required one ineh-ounce l80 rotation Us ing 0017-dia wire 180/360 x 1543 in-oz l80 1/07715 x 641 Note torque meter has significant margin prevent overstress expense length Using 0015-dia wire 2825-in-long torque wire would give approximately inchounce 1800 rotation very little stress margin Winding theory As rubber motor wound torque will build slowly first more rapidly rubber approaches breaking point Experience will enable feel winding peak torque important rate buildup torque begins build rapidly reduce stretch slowly keep winding practice can keep piling turns holding torque about same Step-by-step winding Before winding mo tor sure properly lubricated motor has used before examine closely evi dence tearing scuffing Mechanically dam aged rubber should used contest flying should fully wound flying sitAFTER YOU DID ALL THE WORK WHY LET YOUR AIRPLANE DO ALL THE FLYING INFO $300BUILD & FLY THE miniMAX YOURSELF AWARDED Grand Champion Reserve Grand Champion Ultralight 1989 Sun-N-Fun Fly-In uation youre short rubber use dam aged motors test flying discussion sumes using 0-rings preserve torque values after winding I Stretch motor four six times its nor mal length 2 Wind slowly steadily watching torque meter torque level starts rise rapidly few additional turns stop winding 3 Hold motor massage knots watching torque level drop torque stabilized resume winding 4 Wind very slowly reduce stretch Try hold torque regular level re ducing stretch distancc between hooks model 5 Massage knots again helping torque relax stable level torque stabi lizes again turn back prop small incre ments until stabilized required launch torque 6 Hook motor model fly 7 After model flying record launch turns launch torque low ceilings also record time until first ceiling contact 8 After model lands stop prop un winding hook motor torque meter again Record landing torque count out turns left 9 Compute turns used divide flight time seconds Multiply 60 get rpm Record flight time landing torque rpm average What numbers mean given model weight prop/model combination can de duce optimum trim level flight torque same landing torque eval Continued page 173 TEAM INC BOX 338M BRADYVILLE TN 37026 16151 765-5397 170 Model Aviation durable skis made lightweight aluminum feature steel spring holds ski rigid flight also elevates axle above ski no modifications cur rent gear wire needed can go wheels skis seconds side ski also has special edge allows excellent tracking icy surfaces available two sizes can purchased trikes just mains order please send check money order $300 shipping handling Add 6% sales tax Minnesota Allow 2 weeks delivery Telephone inquiries call Ron 612-781-7333 NORTHERN 20 30 Trike $2200 Mains $1600 MODELING 40 60 Trike $2400 Mains $1800 PRODUCTSPrices effective January 11990 PO Box 21181 ColumbIa HeIghts MN 55421 781-7333 wing rubberbands peck S//ver-Streak 035 ELECTRIC MOTOR SUPER LIGHT WEIGHT ONLY 26 OZ USES LESS CURRENT TURNS 6-3 PROP 12000 RPM 65 AMPS IDEAL FOR SMALL RIC & FREE FLIGHT MOTOR ONLY $1995 CATALOG #30 O PHONE6 19 448-1818 PeckPoIpmers BOX 2498-MA ESA CA 92044 Computer Designed3 Axis Control * Part 103 UltralightEasy Construction * Wood Construction