NFFS NEWS Apparently green light now burning brightly both Indoor Outdoor Free Flight portions AMA Nationals relinquished National Free Flight Society NFFS 1990 plan Indoor por tion married traditional US door Champs fine facilities Johnson City TN June 7-10 Outdoor FF por tion separated July 14-22 RC CL Nats activities being delayed until third week October Lawrenceville IL now exact October date under study Tony Italiano team facilitate some time spread between US FAI FF team finals Lost Hills CA turn being resched uled new dates September 22-24 1990 Moving USOC/AMA FF Nats date Out other two weeks will insure added advantage year-end crops fields around Mid American Air Center contest site near Law renceville IL being Out way midOctober October date desirable school-in-session standpoint Law renceville site utilized Free Flight little alternative time Because school problem specific Junior/Senior Former AMA National Champion US FAI Power team member Bob Ssifleet L won B Gas Empire State Champs last August SuperTigre 29-powered British-designed classic Nig Nog total flight time over 17 mm David Rosenburg R winds Coupe dHiver entry Empire State Champs Murf notes line trees must upwind flying site Photos J Bocckinfuso 60 Model Aviation Free Flight Duration Harry Murphy 3824 Oakwood Blvd Anderson IN 460 I Ch Phil McCary Larry Jenno mounted modified Cox Pee Wee 020s models fine Charlie Atkinson design win first second respectively 89 US FF Champs An example Rubber Scale its finest AA Lldbergs latest plans offering 1930 Racing Monocoupe Nine-year-old daughter Annie helps dad Al show off fine 29-inspan prototype model Photo Lidberg Fred Blom L won Old-Timer event WNYFFS affair K&B Torpedo 29-powered Brooklyn Dodger Ship looks newno covering patches John Clapp R returns Free Flight after 25-year absence plane NosGas-eligible GEEF John siad love over again seems beginner/novice FFers just getting little older 25 years ago Photos J Bocckinfuso events will flown Saturday details about will follow also watch announce ments Competition Newsletter Section magazine-RMcM several years people have thought separated Nats would remedy plight Free Flight Apparently real ized Therefore appears time re sponsible men rise occasion support opportunity again control destiny mestic Free Flight competition brings old adage mind simply states yells loud enough long enough ye shall heard So NFFS prexy Tony Italiano has appointed Joe Foster chairman annual Ten Models Year committee 1990 Hardy Brodersen will handle 1990 NFFS Symposium chores Tony will accept nominations Free Flight Hall Fame inductees usual address sending mode] design nominations Joe Foster 3771 Timberline Dr. San Jose CA 95121 papers articles Hardy Brodersen PO Box 1104 Biirmingham MI 48012 Hall Fame inductee considerations go AJ Italiano 1655 Revere Dr Brooktield WI 53005 lot work involved getting information sifted Out annual Sym posium midsummer preserved Free Flight posterity should participate make contributions early possible So take pen hand now fellas FF New York refreshing receive infor mation respect Free Flight activity out East comes via group photos sent Jim Bocckinfuso Brooklyn Skyscrapers photos taken Empire State Champs held Fayette NY weekend August 1920 1989 annual two-day contest under sponsorship Western New York Free Flight Society CD Brooks Goodnow offered full range Free Flight compe tition Since often get input area shall permit plug 1990 offer four photos indicate what might have missed attending 1989 Good show fellas Mail order hobby shop items Pen pal Al Lidberg heard once again latest design efforts pertain fat stubby favorite Rubber Scale enthusiasts 1930 Monocoupe Racer Al offers highly detailed plans $6 postpaidand can receive catalog normally costs buck free ask Monocoupe order catalog contains other items plans include three racing versions rang ing 40-in-span original down clipped-wing 29-in version Johnny Livingston flew famous full-scale aircraft 41 first places 65 racing starts 1931 superseale plans Al can address AA Lidberg Model Plan Service 614 E Fordham Dr Tempe AZ 85283 Anyone might seeking information rel ative obtaining Siberian-made Cikion Cy klone Cyclone FIC engine may write Mack Henry 269 Elysian Fields Nashville TN 37211 Mack advises information en gine distributed US fliers Euro pean Champs past summer engine comes complete overflow brake devic es Power claims I horsepower 2800030000 rpm suggested price about $280 Mack also has FIB Wakefield front end available variable-pitch prop starting delay torque autostop features about $80 photos sent made Xerox-type copier dont appear satisfactory printing column magazine Anyway Mack can tell should interested Argo-USA familiar name OldTimer FF enthusiasts company supplies number engine reproduction efforts such Orwick 29 32 64 Edco Sky Devil 65 number British-made diesel en gines Enthusiastic customers have come both Vintage RC Free Flight communi ties Among diesel offerings Elfin 249 engine led comparatively quiet existence US some time since diesels have never very popular domestic front Continued 017 page 162 February 1990 61 Buddenbohm brothers Silly Putty D-T SDT System kit seen two ver sions upper Hand-Launched Glid ers lower small Rubber-power ships Glider versions Silly Putty trough carved structure builder Theres info column Phil McCary Larry Jeno teamed up produce modified Cox Pee Wee 020 engines use Pee Wee 30 Free Flight event first glance might think just look ing two examples vintage Cox Thermal Hopper 049 produced early Fifties overlapping cloth pieces until youve covered entire mold twice Make sure resin doesnt pooi bottom Lay mold its side keep turning over couple minutes un til begins kick off Leave epoxy part mold least three days poly ester part should left overnight part light heavy fiber glass its made youre removing very lightweight part mold careful compressor could turn part inside out Youre better off leaving -in cloth overlap around edge extra bulk Heavier parts can blown out relative ease After removing part wash mold water dry thor oughly rewax apply another coat PVA Youre ready mold another part Advice If problems develop have difficulty working out Ill gladly try help please dont telephone Send SASE along description prob lem MH Pickard Fiberglass Master Inc Rt 1 Box 530 Goodview VA 24095 Fiberglass Corporation good source supplies youll need preparing plugs casting molds parts Contact company 1944 Neva Dr Dayton OH 45414 telephone 1-800/821-3283 1513/274-1 159 Ohio good source polyurethane foam contact St Rux Corp 100 E Montauk Hwy Lindenhurst NY 11757 telephone 1-516/9578000 FF Duration/Murphy Continued page 61 However Elfins popularity has recently sky rocketed SAM Society Antique Model ers Class events became apparent probably powerful trouble-free its ignition contemporaries such old Class standbys Arden 199 Ohlsson 19 Bantam 19 etc Having declared legal SAM competi tions British-made Elfin 249 repro-engines have certainly made imprint instance however supplies currently exhausted Argo-USA has recently issued notice due hundreds requests diesel now manufactured right US well-known reliable manufacturer Ap parently laws supply demand still valid certainly good news Should re quire additional information price availability new repro venture just write Argo-USA. 3229 Dianora Dr Palos Verdes Peninsula CA 90274 Tell em Duration told about engine info comes us Phil McCary/Larry Jenno venture modifies minute Cox 020 Pee Wee engine accept ven turi system reminiscent old TD Thermal Hopper modification also includes custommade three-prong radial engine mount Natural ly intent hop-up effort use Pee Wee 30 event first question comes mind results Well mounted business end model designed Charlie Atkinson called Hi-Roller obviously stemming Las Vegas won Phil Larry first second places 1989 US Free Flight Champs last May also entrants max out Phil claims 18000-20000 rpm 40%-nitro fuel using standard 45 x 2 Cox gray plastic prop cut down 425 x 2 prop blades also thinned some balanced Phil Larry like start early thinwalled-cylinder 020s claiming have better piston/cylinder fits what currently being produced reed body machined off tank intake tube cut down collar made fit over intake tube threaded ac cept Cox TD 020 venturi needle valve sembly gas tank machined off meth ods mounting engine thereby elimi nated new three-pronged adapter mount machined hard aluminum fulfill re quirement Thats What see what get Technically appears start good engine put TD 020 needle valve sembly itbut sure looks nice too Hi-Roller sports 8% airfoil wing 6% stab Both wing stab undercambered Should wish additional infor mation engines model both send SASE Phil McCary Jr 532 College Dr 2l2 Henderson NV 89015 Personally think ventures such healthy model competition though takes place so-called beginners event Im too sure Pee Wee 30 constitutes beginners event anyway since seems competi tors area contest circles participate have flying Free Flight years Maybe should listed under heading fun event instead FF event fun particular event liking dividual However FFers like same events reason have eventsand put tachometer stock Cox Pee Wee 020 fall belonged Bill Hale Basic Yeller fame see Duration column August 1988 sounded great clocked 19000 rpm asked him hopped up said did take out bubble pack came run Granted differences tachometers atmospheric conditions point apparently stock en gines around can hold own hopped-up versions rate Pee Wee 30 event continues roll along competition will naturally get stifferand what can detrimental rest case Gary Buddenbohm sent sample kits Silly Putty DT Systems brother Stan pro duce kits result trying nearly 50 prototype systems before achieving current de sign As mute testimony questions regard ing merits final system Stan won Hand-Launched Glider event 89 AMA Nats using SDT system Gliders took kits CIA Central Indiana Aeromodel ers club meeting recently generated considerable interest Although Ive mentioned gadget col umn before Ill repeat tab $5 either HLG Small Rubber kit cludes appropriate instructions Want mailing address SDT Systems 5652 Mainhardt Rd Westminster CA 92683 Take fire haz ard out flying try Preventive maintenance department beauty neatly covered fuselage framework Continued page 166 162 Model Aviation Name Street Address City 7in Works great less filling Now avalable ty Lit.. workis first premium grade light plywood Mighty Utes uIb smooth grain finish alows limited filing virtualy no flaldng saving hours precious buidhig time Mighty Ut bonds easfly ZAP other CAs cuts like butter X-ACW knife Shattering splintering warping mildew thing past Mighty Lites quality formula tion currently being used leading manufac turers inckJding BOB VIOLETT MODELS HOUSE OF BALSA because its superior strength-to-weight ratio So youre tired shattering experiences next time right. Mighty Litel Migt Lit Hum kiss Fru*Tlano Enhrpdmus 20130 Slim Road Genitos Cdfomls 90712400 SW 85th brace Dcle Florida 33324 213860-1276 473-2211 Mighty Lit avaflhitle bettif hobty stores ewywheiu ui may olsr dfrect ra0orlal sales office neffeet FF Duration/Murphy Continued page 162 Rubber Endurance model has always pleasure view small sticks ar ranged purposeful geometric fashion fore uncommon experience spinal twinge sound wound rubber exploding associated crackling fuselage being destroyed within current popular use winding tubes has offset otherwise disaster Rubber fliers have become interested methods dam age control preventive maintenance Much has written subject design front-end rubber motor hooks ensure rubber retained securely thereby preventing climbing prop shaft slipping off wound stage what other endthe lowly anchor peg rear model just impor tant accomplishing its function nonfailure mode illustrious front-end mechanisms think about broken peg slips out its retainer just damaging model exploding motor might Motor pegs have gone simple short lengths hardwood dowel stronger reli able lengths metal tubing aluminum dural hard brass steel possible peg break age deformation taken care next precau tion devise method prevent peg slipping Out its retention holes sides fuselage initially constructed peg holes fuselage usually made fit rear motor peg rather snugly prevent its slippage time become loose repeated insertion extraction pegplus pressure cxerted front side hole wound rubber Thus fit begins get sloppy danger motor peg slipping out increases Allan Schanzle solves problem taken Bat Sheer newsletter cementing appropri ate-sized 0-rings inside fuselages en circling motor peg holes Actually mounts 0-ring little sandwich box 3/ sheet balsa capped either side / plywood hole drilled center A6 sheet balsa square accommodate outside diameter 0-ring 4 plywood caps drilled smaller center hole admit motor peg inside diameter selected 0-ring slightly smaller diameter motor peg 0-ring placed its nest inside / sheet balsa block /~ caps ce mented open ends block trap 0-ring inside assembly cemented place inside fuselage open ing ply cap neatly centered motor peg hole fuselage structure Its neat out sight once model covered re tains motor peg snugly Allan doesnt say would seem doing just peg holes fuse lage would suffice cases Anyway thought good idea caught another good idea retaining mo tor peg Bud Browns Mulvihill models recent contest Lawrenceville IL Bud re tains rear motor pegs small steel C-rings placed around outside motor peg adja cent exterior side model after rub ber motor has installed C-ring size several sizes chosen fit over aluminum dural motor peg tube uses pair special pliers made install C-rings remove motor peg C-ring must first removed special pliers Most hardware auto parts store will carry both 0and C-rings well C-ring pliers Making neat job applying standard light weight fiberglass cloth reinforcement area model often easily accomplished because stuff flexible cut edges have mind own dope epoxy applied Arguing ticked-off wildcat can ten fruitful less traumatic Bob Beecroft solves dilemma making own brand fiberglass tape reinforcing wing dihedral joints First stretches goodsized patch virgin cloth over hardwood frame retains cloth snugly frame masking tape stretching cloth di rections much possible brushes full-strength dope spaced vertical stripes up down cloth undoped spaces between doped stripes determine eventual width fiberglass tape desired artwork dry removes frame cuts cloth tape strips down middle vertical-dried-dope areas prefers use pinking shears cut manu factured tape strips neat uniform saw tooth edges lend look professionalism dried dope prevents edges unraveling tape can now easily applied dope CyA epoxy rise blood pres sure filling shop air profanity still-flexible center portion tape lends merit process instances area reinforced compound-contour surface Walt Rozelle recently tempted sending small swatch stiffened fiberglass cloth about size fig leaf An inquiry could get grubby mitts personal supply swered five-step yourself set inContinued page 168 166 Model Aviation 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
Edition: Model Aviation - 1990/02
Page Numbers: 60, 61, 162, 166, 168
NFFS NEWS Apparently green light now burning brightly both Indoor Outdoor Free Flight portions AMA Nationals relinquished National Free Flight Society NFFS 1990 plan Indoor por tion married traditional US door Champs fine facilities Johnson City TN June 7-10 Outdoor FF por tion separated July 14-22 RC CL Nats activities being delayed until third week October Lawrenceville IL now exact October date under study Tony Italiano team facilitate some time spread between US FAI FF team finals Lost Hills CA turn being resched uled new dates September 22-24 1990 Moving USOC/AMA FF Nats date Out other two weeks will insure added advantage year-end crops fields around Mid American Air Center contest site near Law renceville IL being Out way midOctober October date desirable school-in-session standpoint Law renceville site utilized Free Flight little alternative time Because school problem specific Junior/Senior Former AMA National Champion US FAI Power team member Bob Ssifleet L won B Gas Empire State Champs last August SuperTigre 29-powered British-designed classic Nig Nog total flight time over 17 mm David Rosenburg R winds Coupe dHiver entry Empire State Champs Murf notes line trees must upwind flying site Photos J Bocckinfuso 60 Model Aviation Free Flight Duration Harry Murphy 3824 Oakwood Blvd Anderson IN 460 I Ch Phil McCary Larry Jenno mounted modified Cox Pee Wee 020s models fine Charlie Atkinson design win first second respectively 89 US FF Champs An example Rubber Scale its finest AA Lldbergs latest plans offering 1930 Racing Monocoupe Nine-year-old daughter Annie helps dad Al show off fine 29-inspan prototype model Photo Lidberg Fred Blom L won Old-Timer event WNYFFS affair K&B Torpedo 29-powered Brooklyn Dodger Ship looks newno covering patches John Clapp R returns Free Flight after 25-year absence plane NosGas-eligible GEEF John siad love over again seems beginner/novice FFers just getting little older 25 years ago Photos J Bocckinfuso events will flown Saturday details about will follow also watch announce ments Competition Newsletter Section magazine-RMcM several years people have thought separated Nats would remedy plight Free Flight Apparently real ized Therefore appears time re sponsible men rise occasion support opportunity again control destiny mestic Free Flight competition brings old adage mind simply states yells loud enough long enough ye shall heard So NFFS prexy Tony Italiano has appointed Joe Foster chairman annual Ten Models Year committee 1990 Hardy Brodersen will handle 1990 NFFS Symposium chores Tony will accept nominations Free Flight Hall Fame inductees usual address sending mode] design nominations Joe Foster 3771 Timberline Dr. San Jose CA 95121 papers articles Hardy Brodersen PO Box 1104 Biirmingham MI 48012 Hall Fame inductee considerations go AJ Italiano 1655 Revere Dr Brooktield WI 53005 lot work involved getting information sifted Out annual Sym posium midsummer preserved Free Flight posterity should participate make contributions early possible So take pen hand now fellas FF New York refreshing receive infor mation respect Free Flight activity out East comes via group photos sent Jim Bocckinfuso Brooklyn Skyscrapers photos taken Empire State Champs held Fayette NY weekend August 1920 1989 annual two-day contest under sponsorship Western New York Free Flight Society CD Brooks Goodnow offered full range Free Flight compe tition Since often get input area shall permit plug 1990 offer four photos indicate what might have missed attending 1989 Good show fellas Mail order hobby shop items Pen pal Al Lidberg heard once again latest design efforts pertain fat stubby favorite Rubber Scale enthusiasts 1930 Monocoupe Racer Al offers highly detailed plans $6 postpaidand can receive catalog normally costs buck free ask Monocoupe order catalog contains other items plans include three racing versions rang ing 40-in-span original down clipped-wing 29-in version Johnny Livingston flew famous full-scale aircraft 41 first places 65 racing starts 1931 superseale plans Al can address AA Lidberg Model Plan Service 614 E Fordham Dr Tempe AZ 85283 Anyone might seeking information rel ative obtaining Siberian-made Cikion Cy klone Cyclone FIC engine may write Mack Henry 269 Elysian Fields Nashville TN 37211 Mack advises information en gine distributed US fliers Euro pean Champs past summer engine comes complete overflow brake devic es Power claims I horsepower 2800030000 rpm suggested price about $280 Mack also has FIB Wakefield front end available variable-pitch prop starting delay torque autostop features about $80 photos sent made Xerox-type copier dont appear satisfactory printing column magazine Anyway Mack can tell should interested Argo-USA familiar name OldTimer FF enthusiasts company supplies number engine reproduction efforts such Orwick 29 32 64 Edco Sky Devil 65 number British-made diesel en gines Enthusiastic customers have come both Vintage RC Free Flight communi ties Among diesel offerings Elfin 249 engine led comparatively quiet existence US some time since diesels have never very popular domestic front Continued 017 page 162 February 1990 61 Buddenbohm brothers Silly Putty D-T SDT System kit seen two ver sions upper Hand-Launched Glid ers lower small Rubber-power ships Glider versions Silly Putty trough carved structure builder Theres info column Phil McCary Larry Jeno teamed up produce modified Cox Pee Wee 020 engines use Pee Wee 30 Free Flight event first glance might think just look ing two examples vintage Cox Thermal Hopper 049 produced early Fifties overlapping cloth pieces until youve covered entire mold twice Make sure resin doesnt pooi bottom Lay mold its side keep turning over couple minutes un til begins kick off Leave epoxy part mold least three days poly ester part should left overnight part light heavy fiber glass its made youre removing very lightweight part mold careful compressor could turn part inside out Youre better off leaving -in cloth overlap around edge extra bulk Heavier parts can blown out relative ease After removing part wash mold water dry thor oughly rewax apply another coat PVA Youre ready mold another part Advice If problems develop have difficulty working out Ill gladly try help please dont telephone Send SASE along description prob lem MH Pickard Fiberglass Master Inc Rt 1 Box 530 Goodview VA 24095 Fiberglass Corporation good source supplies youll need preparing plugs casting molds parts Contact company 1944 Neva Dr Dayton OH 45414 telephone 1-800/821-3283 1513/274-1 159 Ohio good source polyurethane foam contact St Rux Corp 100 E Montauk Hwy Lindenhurst NY 11757 telephone 1-516/9578000 FF Duration/Murphy Continued page 61 However Elfins popularity has recently sky rocketed SAM Society Antique Model ers Class events became apparent probably powerful trouble-free its ignition contemporaries such old Class standbys Arden 199 Ohlsson 19 Bantam 19 etc Having declared legal SAM competi tions British-made Elfin 249 repro-engines have certainly made imprint instance however supplies currently exhausted Argo-USA has recently issued notice due hundreds requests diesel now manufactured right US well-known reliable manufacturer Ap parently laws supply demand still valid certainly good news Should re quire additional information price availability new repro venture just write Argo-USA. 3229 Dianora Dr Palos Verdes Peninsula CA 90274 Tell em Duration told about engine info comes us Phil McCary/Larry Jenno venture modifies minute Cox 020 Pee Wee engine accept ven turi system reminiscent old TD Thermal Hopper modification also includes custommade three-prong radial engine mount Natural ly intent hop-up effort use Pee Wee 30 event first question comes mind results Well mounted business end model designed Charlie Atkinson called Hi-Roller obviously stemming Las Vegas won Phil Larry first second places 1989 US Free Flight Champs last May also entrants max out Phil claims 18000-20000 rpm 40%-nitro fuel using standard 45 x 2 Cox gray plastic prop cut down 425 x 2 prop blades also thinned some balanced Phil Larry like start early thinwalled-cylinder 020s claiming have better piston/cylinder fits what currently being produced reed body machined off tank intake tube cut down collar made fit over intake tube threaded ac cept Cox TD 020 venturi needle valve sembly gas tank machined off meth ods mounting engine thereby elimi nated new three-pronged adapter mount machined hard aluminum fulfill re quirement Thats What see what get Technically appears start good engine put TD 020 needle valve sembly itbut sure looks nice too Hi-Roller sports 8% airfoil wing 6% stab Both wing stab undercambered Should wish additional infor mation engines model both send SASE Phil McCary Jr 532 College Dr 2l2 Henderson NV 89015 Personally think ventures such healthy model competition though takes place so-called beginners event Im too sure Pee Wee 30 constitutes beginners event anyway since seems competi tors area contest circles participate have flying Free Flight years Maybe should listed under heading fun event instead FF event fun particular event liking dividual However FFers like same events reason have eventsand put tachometer stock Cox Pee Wee 020 fall belonged Bill Hale Basic Yeller fame see Duration column August 1988 sounded great clocked 19000 rpm asked him hopped up said did take out bubble pack came run Granted differences tachometers atmospheric conditions point apparently stock en gines around can hold own hopped-up versions rate Pee Wee 30 event continues roll along competition will naturally get stifferand what can detrimental rest case Gary Buddenbohm sent sample kits Silly Putty DT Systems brother Stan pro duce kits result trying nearly 50 prototype systems before achieving current de sign As mute testimony questions regard ing merits final system Stan won Hand-Launched Glider event 89 AMA Nats using SDT system Gliders took kits CIA Central Indiana Aeromodel ers club meeting recently generated considerable interest Although Ive mentioned gadget col umn before Ill repeat tab $5 either HLG Small Rubber kit cludes appropriate instructions Want mailing address SDT Systems 5652 Mainhardt Rd Westminster CA 92683 Take fire haz ard out flying try Preventive maintenance department beauty neatly covered fuselage framework Continued page 166 162 Model Aviation Name Street Address City 7in Works great less filling Now avalable ty Lit.. workis first premium grade light plywood Mighty Utes uIb smooth grain finish alows limited filing virtualy no flaldng saving hours precious buidhig time Mighty Ut bonds easfly ZAP other CAs cuts like butter X-ACW knife Shattering splintering warping mildew thing past Mighty Lites quality formula tion currently being used leading manufac turers inckJding BOB VIOLETT MODELS HOUSE OF BALSA because its superior strength-to-weight ratio So youre tired shattering experiences next time right. Mighty Litel Migt Lit Hum kiss Fru*Tlano Enhrpdmus 20130 Slim Road Genitos Cdfomls 90712400 SW 85th brace Dcle Florida 33324 213860-1276 473-2211 Mighty Lit avaflhitle bettif hobty stores ewywheiu ui may olsr dfrect ra0orlal sales office neffeet FF Duration/Murphy Continued page 162 Rubber Endurance model has always pleasure view small sticks ar ranged purposeful geometric fashion fore uncommon experience spinal twinge sound wound rubber exploding associated crackling fuselage being destroyed within current popular use winding tubes has offset otherwise disaster Rubber fliers have become interested methods dam age control preventive maintenance Much has written subject design front-end rubber motor hooks ensure rubber retained securely thereby preventing climbing prop shaft slipping off wound stage what other endthe lowly anchor peg rear model just impor tant accomplishing its function nonfailure mode illustrious front-end mechanisms think about broken peg slips out its retainer just damaging model exploding motor might Motor pegs have gone simple short lengths hardwood dowel stronger reli able lengths metal tubing aluminum dural hard brass steel possible peg break age deformation taken care next precau tion devise method prevent peg slipping Out its retention holes sides fuselage initially constructed peg holes fuselage usually made fit rear motor peg rather snugly prevent its slippage time become loose repeated insertion extraction pegplus pressure cxerted front side hole wound rubber Thus fit begins get sloppy danger motor peg slipping out increases Allan Schanzle solves problem taken Bat Sheer newsletter cementing appropri ate-sized 0-rings inside fuselages en circling motor peg holes Actually mounts 0-ring little sandwich box 3/ sheet balsa capped either side / plywood hole drilled center A6 sheet balsa square accommodate outside diameter 0-ring 4 plywood caps drilled smaller center hole admit motor peg inside diameter selected 0-ring slightly smaller diameter motor peg 0-ring placed its nest inside / sheet balsa block /~ caps ce mented open ends block trap 0-ring inside assembly cemented place inside fuselage open ing ply cap neatly centered motor peg hole fuselage structure Its neat out sight once model covered re tains motor peg snugly Allan doesnt say would seem doing just peg holes fuse lage would suffice cases Anyway thought good idea caught another good idea retaining mo tor peg Bud Browns Mulvihill models recent contest Lawrenceville IL Bud re tains rear motor pegs small steel C-rings placed around outside motor peg adja cent exterior side model after rub ber motor has installed C-ring size several sizes chosen fit over aluminum dural motor peg tube uses pair special pliers made install C-rings remove motor peg C-ring must first removed special pliers Most hardware auto parts store will carry both 0and C-rings well C-ring pliers Making neat job applying standard light weight fiberglass cloth reinforcement area model often easily accomplished because stuff flexible cut edges have mind own dope epoxy applied Arguing ticked-off wildcat can ten fruitful less traumatic Bob Beecroft solves dilemma making own brand fiberglass tape reinforcing wing dihedral joints First stretches goodsized patch virgin cloth over hardwood frame retains cloth snugly frame masking tape stretching cloth di rections much possible brushes full-strength dope spaced vertical stripes up down cloth undoped spaces between doped stripes determine eventual width fiberglass tape desired artwork dry removes frame cuts cloth tape strips down middle vertical-dried-dope areas prefers use pinking shears cut manu factured tape strips neat uniform saw tooth edges lend look professionalism dried dope prevents edges unraveling tape can now easily applied dope CyA epoxy rise blood pres sure filling shop air profanity still-flexible center portion tape lends merit process instances area reinforced compound-contour surface Walt Rozelle recently tempted sending small swatch stiffened fiberglass cloth about size fig leaf An inquiry could get grubby mitts personal supply swered five-step yourself set inContinued page 168 166 Model Aviation 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
Edition: Model Aviation - 1990/02
Page Numbers: 60, 61, 162, 166, 168
NFFS NEWS Apparently green light now burning brightly both Indoor Outdoor Free Flight portions AMA Nationals relinquished National Free Flight Society NFFS 1990 plan Indoor por tion married traditional US door Champs fine facilities Johnson City TN June 7-10 Outdoor FF por tion separated July 14-22 RC CL Nats activities being delayed until third week October Lawrenceville IL now exact October date under study Tony Italiano team facilitate some time spread between US FAI FF team finals Lost Hills CA turn being resched uled new dates September 22-24 1990 Moving USOC/AMA FF Nats date Out other two weeks will insure added advantage year-end crops fields around Mid American Air Center contest site near Law renceville IL being Out way midOctober October date desirable school-in-session standpoint Law renceville site utilized Free Flight little alternative time Because school problem specific Junior/Senior Former AMA National Champion US FAI Power team member Bob Ssifleet L won B Gas Empire State Champs last August SuperTigre 29-powered British-designed classic Nig Nog total flight time over 17 mm David Rosenburg R winds Coupe dHiver entry Empire State Champs Murf notes line trees must upwind flying site Photos J Bocckinfuso 60 Model Aviation Free Flight Duration Harry Murphy 3824 Oakwood Blvd Anderson IN 460 I Ch Phil McCary Larry Jenno mounted modified Cox Pee Wee 020s models fine Charlie Atkinson design win first second respectively 89 US FF Champs An example Rubber Scale its finest AA Lldbergs latest plans offering 1930 Racing Monocoupe Nine-year-old daughter Annie helps dad Al show off fine 29-inspan prototype model Photo Lidberg Fred Blom L won Old-Timer event WNYFFS affair K&B Torpedo 29-powered Brooklyn Dodger Ship looks newno covering patches John Clapp R returns Free Flight after 25-year absence plane NosGas-eligible GEEF John siad love over again seems beginner/novice FFers just getting little older 25 years ago Photos J Bocckinfuso events will flown Saturday details about will follow also watch announce ments Competition Newsletter Section magazine-RMcM several years people have thought separated Nats would remedy plight Free Flight Apparently real ized Therefore appears time re sponsible men rise occasion support opportunity again control destiny mestic Free Flight competition brings old adage mind simply states yells loud enough long enough ye shall heard So NFFS prexy Tony Italiano has appointed Joe Foster chairman annual Ten Models Year committee 1990 Hardy Brodersen will handle 1990 NFFS Symposium chores Tony will accept nominations Free Flight Hall Fame inductees usual address sending mode] design nominations Joe Foster 3771 Timberline Dr. San Jose CA 95121 papers articles Hardy Brodersen PO Box 1104 Biirmingham MI 48012 Hall Fame inductee considerations go AJ Italiano 1655 Revere Dr Brooktield WI 53005 lot work involved getting information sifted Out annual Sym posium midsummer preserved Free Flight posterity should participate make contributions early possible So take pen hand now fellas FF New York refreshing receive infor mation respect Free Flight activity out East comes via group photos sent Jim Bocckinfuso Brooklyn Skyscrapers photos taken Empire State Champs held Fayette NY weekend August 1920 1989 annual two-day contest under sponsorship Western New York Free Flight Society CD Brooks Goodnow offered full range Free Flight compe tition Since often get input area shall permit plug 1990 offer four photos indicate what might have missed attending 1989 Good show fellas Mail order hobby shop items Pen pal Al Lidberg heard once again latest design efforts pertain fat stubby favorite Rubber Scale enthusiasts 1930 Monocoupe Racer Al offers highly detailed plans $6 postpaidand can receive catalog normally costs buck free ask Monocoupe order catalog contains other items plans include three racing versions rang ing 40-in-span original down clipped-wing 29-in version Johnny Livingston flew famous full-scale aircraft 41 first places 65 racing starts 1931 superseale plans Al can address AA Lidberg Model Plan Service 614 E Fordham Dr Tempe AZ 85283 Anyone might seeking information rel ative obtaining Siberian-made Cikion Cy klone Cyclone FIC engine may write Mack Henry 269 Elysian Fields Nashville TN 37211 Mack advises information en gine distributed US fliers Euro pean Champs past summer engine comes complete overflow brake devic es Power claims I horsepower 2800030000 rpm suggested price about $280 Mack also has FIB Wakefield front end available variable-pitch prop starting delay torque autostop features about $80 photos sent made Xerox-type copier dont appear satisfactory printing column magazine Anyway Mack can tell should interested Argo-USA familiar name OldTimer FF enthusiasts company supplies number engine reproduction efforts such Orwick 29 32 64 Edco Sky Devil 65 number British-made diesel en gines Enthusiastic customers have come both Vintage RC Free Flight communi ties Among diesel offerings Elfin 249 engine led comparatively quiet existence US some time since diesels have never very popular domestic front Continued 017 page 162 February 1990 61 Buddenbohm brothers Silly Putty D-T SDT System kit seen two ver sions upper Hand-Launched Glid ers lower small Rubber-power ships Glider versions Silly Putty trough carved structure builder Theres info column Phil McCary Larry Jeno teamed up produce modified Cox Pee Wee 020 engines use Pee Wee 30 Free Flight event first glance might think just look ing two examples vintage Cox Thermal Hopper 049 produced early Fifties overlapping cloth pieces until youve covered entire mold twice Make sure resin doesnt pooi bottom Lay mold its side keep turning over couple minutes un til begins kick off Leave epoxy part mold least three days poly ester part should left overnight part light heavy fiber glass its made youre removing very lightweight part mold careful compressor could turn part inside out Youre better off leaving -in cloth overlap around edge extra bulk Heavier parts can blown out relative ease After removing part wash mold water dry thor oughly rewax apply another coat PVA Youre ready mold another part Advice If problems develop have difficulty working out Ill gladly try help please dont telephone Send SASE along description prob lem MH Pickard Fiberglass Master Inc Rt 1 Box 530 Goodview VA 24095 Fiberglass Corporation good source supplies youll need preparing plugs casting molds parts Contact company 1944 Neva Dr Dayton OH 45414 telephone 1-800/821-3283 1513/274-1 159 Ohio good source polyurethane foam contact St Rux Corp 100 E Montauk Hwy Lindenhurst NY 11757 telephone 1-516/9578000 FF Duration/Murphy Continued page 61 However Elfins popularity has recently sky rocketed SAM Society Antique Model ers Class events became apparent probably powerful trouble-free its ignition contemporaries such old Class standbys Arden 199 Ohlsson 19 Bantam 19 etc Having declared legal SAM competi tions British-made Elfin 249 repro-engines have certainly made imprint instance however supplies currently exhausted Argo-USA has recently issued notice due hundreds requests diesel now manufactured right US well-known reliable manufacturer Ap parently laws supply demand still valid certainly good news Should re quire additional information price availability new repro venture just write Argo-USA. 3229 Dianora Dr Palos Verdes Peninsula CA 90274 Tell em Duration told about engine info comes us Phil McCary/Larry Jenno venture modifies minute Cox 020 Pee Wee engine accept ven turi system reminiscent old TD Thermal Hopper modification also includes custommade three-prong radial engine mount Natural ly intent hop-up effort use Pee Wee 30 event first question comes mind results Well mounted business end model designed Charlie Atkinson called Hi-Roller obviously stemming Las Vegas won Phil Larry first second places 1989 US Free Flight Champs last May also entrants max out Phil claims 18000-20000 rpm 40%-nitro fuel using standard 45 x 2 Cox gray plastic prop cut down 425 x 2 prop blades also thinned some balanced Phil Larry like start early thinwalled-cylinder 020s claiming have better piston/cylinder fits what currently being produced reed body machined off tank intake tube cut down collar made fit over intake tube threaded ac cept Cox TD 020 venturi needle valve sembly gas tank machined off meth ods mounting engine thereby elimi nated new three-pronged adapter mount machined hard aluminum fulfill re quirement Thats What see what get Technically appears start good engine put TD 020 needle valve sembly itbut sure looks nice too Hi-Roller sports 8% airfoil wing 6% stab Both wing stab undercambered Should wish additional infor mation engines model both send SASE Phil McCary Jr 532 College Dr 2l2 Henderson NV 89015 Personally think ventures such healthy model competition though takes place so-called beginners event Im too sure Pee Wee 30 constitutes beginners event anyway since seems competi tors area contest circles participate have flying Free Flight years Maybe should listed under heading fun event instead FF event fun particular event liking dividual However FFers like same events reason have eventsand put tachometer stock Cox Pee Wee 020 fall belonged Bill Hale Basic Yeller fame see Duration column August 1988 sounded great clocked 19000 rpm asked him hopped up said did take out bubble pack came run Granted differences tachometers atmospheric conditions point apparently stock en gines around can hold own hopped-up versions rate Pee Wee 30 event continues roll along competition will naturally get stifferand what can detrimental rest case Gary Buddenbohm sent sample kits Silly Putty DT Systems brother Stan pro duce kits result trying nearly 50 prototype systems before achieving current de sign As mute testimony questions regard ing merits final system Stan won Hand-Launched Glider event 89 AMA Nats using SDT system Gliders took kits CIA Central Indiana Aeromodel ers club meeting recently generated considerable interest Although Ive mentioned gadget col umn before Ill repeat tab $5 either HLG Small Rubber kit cludes appropriate instructions Want mailing address SDT Systems 5652 Mainhardt Rd Westminster CA 92683 Take fire haz ard out flying try Preventive maintenance department beauty neatly covered fuselage framework Continued page 166 162 Model Aviation Name Street Address City 7in Works great less filling Now avalable ty Lit.. workis first premium grade light plywood Mighty Utes uIb smooth grain finish alows limited filing virtualy no flaldng saving hours precious buidhig time Mighty Ut bonds easfly ZAP other CAs cuts like butter X-ACW knife Shattering splintering warping mildew thing past Mighty Lites quality formula tion currently being used leading manufac turers inckJding BOB VIOLETT MODELS HOUSE OF BALSA because its superior strength-to-weight ratio So youre tired shattering experiences next time right. Mighty Litel Migt Lit Hum kiss Fru*Tlano Enhrpdmus 20130 Slim Road Genitos Cdfomls 90712400 SW 85th brace Dcle Florida 33324 213860-1276 473-2211 Mighty Lit avaflhitle bettif hobty stores ewywheiu ui may olsr dfrect ra0orlal sales office neffeet FF Duration/Murphy Continued page 162 Rubber Endurance model has always pleasure view small sticks ar ranged purposeful geometric fashion fore uncommon experience spinal twinge sound wound rubber exploding associated crackling fuselage being destroyed within current popular use winding tubes has offset otherwise disaster Rubber fliers have become interested methods dam age control preventive maintenance Much has written subject design front-end rubber motor hooks ensure rubber retained securely thereby preventing climbing prop shaft slipping off wound stage what other endthe lowly anchor peg rear model just impor tant accomplishing its function nonfailure mode illustrious front-end mechanisms think about broken peg slips out its retainer just damaging model exploding motor might Motor pegs have gone simple short lengths hardwood dowel stronger reli able lengths metal tubing aluminum dural hard brass steel possible peg break age deformation taken care next precau tion devise method prevent peg slipping Out its retention holes sides fuselage initially constructed peg holes fuselage usually made fit rear motor peg rather snugly prevent its slippage time become loose repeated insertion extraction pegplus pressure cxerted front side hole wound rubber Thus fit begins get sloppy danger motor peg slipping out increases Allan Schanzle solves problem taken Bat Sheer newsletter cementing appropri ate-sized 0-rings inside fuselages en circling motor peg holes Actually mounts 0-ring little sandwich box 3/ sheet balsa capped either side / plywood hole drilled center A6 sheet balsa square accommodate outside diameter 0-ring 4 plywood caps drilled smaller center hole admit motor peg inside diameter selected 0-ring slightly smaller diameter motor peg 0-ring placed its nest inside / sheet balsa block /~ caps ce mented open ends block trap 0-ring inside assembly cemented place inside fuselage open ing ply cap neatly centered motor peg hole fuselage structure Its neat out sight once model covered re tains motor peg snugly Allan doesnt say would seem doing just peg holes fuse lage would suffice cases Anyway thought good idea caught another good idea retaining mo tor peg Bud Browns Mulvihill models recent contest Lawrenceville IL Bud re tains rear motor pegs small steel C-rings placed around outside motor peg adja cent exterior side model after rub ber motor has installed C-ring size several sizes chosen fit over aluminum dural motor peg tube uses pair special pliers made install C-rings remove motor peg C-ring must first removed special pliers Most hardware auto parts store will carry both 0and C-rings well C-ring pliers Making neat job applying standard light weight fiberglass cloth reinforcement area model often easily accomplished because stuff flexible cut edges have mind own dope epoxy applied Arguing ticked-off wildcat can ten fruitful less traumatic Bob Beecroft solves dilemma making own brand fiberglass tape reinforcing wing dihedral joints First stretches goodsized patch virgin cloth over hardwood frame retains cloth snugly frame masking tape stretching cloth di rections much possible brushes full-strength dope spaced vertical stripes up down cloth undoped spaces between doped stripes determine eventual width fiberglass tape desired artwork dry removes frame cuts cloth tape strips down middle vertical-dried-dope areas prefers use pinking shears cut manu factured tape strips neat uniform saw tooth edges lend look professionalism dried dope prevents edges unraveling tape can now easily applied dope CyA epoxy rise blood pres sure filling shop air profanity still-flexible center portion tape lends merit process instances area reinforced compound-contour surface Walt Rozelle recently tempted sending small swatch stiffened fiberglass cloth about size fig leaf An inquiry could get grubby mitts personal supply swered five-step yourself set inContinued page 168 166 Model Aviation 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
Edition: Model Aviation - 1990/02
Page Numbers: 60, 61, 162, 166, 168
NFFS NEWS Apparently green light now burning brightly both Indoor Outdoor Free Flight portions AMA Nationals relinquished National Free Flight Society NFFS 1990 plan Indoor por tion married traditional US door Champs fine facilities Johnson City TN June 7-10 Outdoor FF por tion separated July 14-22 RC CL Nats activities being delayed until third week October Lawrenceville IL now exact October date under study Tony Italiano team facilitate some time spread between US FAI FF team finals Lost Hills CA turn being resched uled new dates September 22-24 1990 Moving USOC/AMA FF Nats date Out other two weeks will insure added advantage year-end crops fields around Mid American Air Center contest site near Law renceville IL being Out way midOctober October date desirable school-in-session standpoint Law renceville site utilized Free Flight little alternative time Because school problem specific Junior/Senior Former AMA National Champion US FAI Power team member Bob Ssifleet L won B Gas Empire State Champs last August SuperTigre 29-powered British-designed classic Nig Nog total flight time over 17 mm David Rosenburg R winds Coupe dHiver entry Empire State Champs Murf notes line trees must upwind flying site Photos J Bocckinfuso 60 Model Aviation Free Flight Duration Harry Murphy 3824 Oakwood Blvd Anderson IN 460 I Ch Phil McCary Larry Jenno mounted modified Cox Pee Wee 020s models fine Charlie Atkinson design win first second respectively 89 US FF Champs An example Rubber Scale its finest AA Lldbergs latest plans offering 1930 Racing Monocoupe Nine-year-old daughter Annie helps dad Al show off fine 29-inspan prototype model Photo Lidberg Fred Blom L won Old-Timer event WNYFFS affair K&B Torpedo 29-powered Brooklyn Dodger Ship looks newno covering patches John Clapp R returns Free Flight after 25-year absence plane NosGas-eligible GEEF John siad love over again seems beginner/novice FFers just getting little older 25 years ago Photos J Bocckinfuso events will flown Saturday details about will follow also watch announce ments Competition Newsletter Section magazine-RMcM several years people have thought separated Nats would remedy plight Free Flight Apparently real ized Therefore appears time re sponsible men rise occasion support opportunity again control destiny mestic Free Flight competition brings old adage mind simply states yells loud enough long enough ye shall heard So NFFS prexy Tony Italiano has appointed Joe Foster chairman annual Ten Models Year committee 1990 Hardy Brodersen will handle 1990 NFFS Symposium chores Tony will accept nominations Free Flight Hall Fame inductees usual address sending mode] design nominations Joe Foster 3771 Timberline Dr. San Jose CA 95121 papers articles Hardy Brodersen PO Box 1104 Biirmingham MI 48012 Hall Fame inductee considerations go AJ Italiano 1655 Revere Dr Brooktield WI 53005 lot work involved getting information sifted Out annual Sym posium midsummer preserved Free Flight posterity should participate make contributions early possible So take pen hand now fellas FF New York refreshing receive infor mation respect Free Flight activity out East comes via group photos sent Jim Bocckinfuso Brooklyn Skyscrapers photos taken Empire State Champs held Fayette NY weekend August 1920 1989 annual two-day contest under sponsorship Western New York Free Flight Society CD Brooks Goodnow offered full range Free Flight compe tition Since often get input area shall permit plug 1990 offer four photos indicate what might have missed attending 1989 Good show fellas Mail order hobby shop items Pen pal Al Lidberg heard once again latest design efforts pertain fat stubby favorite Rubber Scale enthusiasts 1930 Monocoupe Racer Al offers highly detailed plans $6 postpaidand can receive catalog normally costs buck free ask Monocoupe order catalog contains other items plans include three racing versions rang ing 40-in-span original down clipped-wing 29-in version Johnny Livingston flew famous full-scale aircraft 41 first places 65 racing starts 1931 superseale plans Al can address AA Lidberg Model Plan Service 614 E Fordham Dr Tempe AZ 85283 Anyone might seeking information rel ative obtaining Siberian-made Cikion Cy klone Cyclone FIC engine may write Mack Henry 269 Elysian Fields Nashville TN 37211 Mack advises information en gine distributed US fliers Euro pean Champs past summer engine comes complete overflow brake devic es Power claims I horsepower 2800030000 rpm suggested price about $280 Mack also has FIB Wakefield front end available variable-pitch prop starting delay torque autostop features about $80 photos sent made Xerox-type copier dont appear satisfactory printing column magazine Anyway Mack can tell should interested Argo-USA familiar name OldTimer FF enthusiasts company supplies number engine reproduction efforts such Orwick 29 32 64 Edco Sky Devil 65 number British-made diesel en gines Enthusiastic customers have come both Vintage RC Free Flight communi ties Among diesel offerings Elfin 249 engine led comparatively quiet existence US some time since diesels have never very popular domestic front Continued 017 page 162 February 1990 61 Buddenbohm brothers Silly Putty D-T SDT System kit seen two ver sions upper Hand-Launched Glid ers lower small Rubber-power ships Glider versions Silly Putty trough carved structure builder Theres info column Phil McCary Larry Jeno teamed up produce modified Cox Pee Wee 020 engines use Pee Wee 30 Free Flight event first glance might think just look ing two examples vintage Cox Thermal Hopper 049 produced early Fifties overlapping cloth pieces until youve covered entire mold twice Make sure resin doesnt pooi bottom Lay mold its side keep turning over couple minutes un til begins kick off Leave epoxy part mold least three days poly ester part should left overnight part light heavy fiber glass its made youre removing very lightweight part mold careful compressor could turn part inside out Youre better off leaving -in cloth overlap around edge extra bulk Heavier parts can blown out relative ease After removing part wash mold water dry thor oughly rewax apply another coat PVA Youre ready mold another part Advice If problems develop have difficulty working out Ill gladly try help please dont telephone Send SASE along description prob lem MH Pickard Fiberglass Master Inc Rt 1 Box 530 Goodview VA 24095 Fiberglass Corporation good source supplies youll need preparing plugs casting molds parts Contact company 1944 Neva Dr Dayton OH 45414 telephone 1-800/821-3283 1513/274-1 159 Ohio good source polyurethane foam contact St Rux Corp 100 E Montauk Hwy Lindenhurst NY 11757 telephone 1-516/9578000 FF Duration/Murphy Continued page 61 However Elfins popularity has recently sky rocketed SAM Society Antique Model ers Class events became apparent probably powerful trouble-free its ignition contemporaries such old Class standbys Arden 199 Ohlsson 19 Bantam 19 etc Having declared legal SAM competi tions British-made Elfin 249 repro-engines have certainly made imprint instance however supplies currently exhausted Argo-USA has recently issued notice due hundreds requests diesel now manufactured right US well-known reliable manufacturer Ap parently laws supply demand still valid certainly good news Should re quire additional information price availability new repro venture just write Argo-USA. 3229 Dianora Dr Palos Verdes Peninsula CA 90274 Tell em Duration told about engine info comes us Phil McCary/Larry Jenno venture modifies minute Cox 020 Pee Wee engine accept ven turi system reminiscent old TD Thermal Hopper modification also includes custommade three-prong radial engine mount Natural ly intent hop-up effort use Pee Wee 30 event first question comes mind results Well mounted business end model designed Charlie Atkinson called Hi-Roller obviously stemming Las Vegas won Phil Larry first second places 1989 US Free Flight Champs last May also entrants max out Phil claims 18000-20000 rpm 40%-nitro fuel using standard 45 x 2 Cox gray plastic prop cut down 425 x 2 prop blades also thinned some balanced Phil Larry like start early thinwalled-cylinder 020s claiming have better piston/cylinder fits what currently being produced reed body machined off tank intake tube cut down collar made fit over intake tube threaded ac cept Cox TD 020 venturi needle valve sembly gas tank machined off meth ods mounting engine thereby elimi nated new three-pronged adapter mount machined hard aluminum fulfill re quirement Thats What see what get Technically appears start good engine put TD 020 needle valve sembly itbut sure looks nice too Hi-Roller sports 8% airfoil wing 6% stab Both wing stab undercambered Should wish additional infor mation engines model both send SASE Phil McCary Jr 532 College Dr 2l2 Henderson NV 89015 Personally think ventures such healthy model competition though takes place so-called beginners event Im too sure Pee Wee 30 constitutes beginners event anyway since seems competi tors area contest circles participate have flying Free Flight years Maybe should listed under heading fun event instead FF event fun particular event liking dividual However FFers like same events reason have eventsand put tachometer stock Cox Pee Wee 020 fall belonged Bill Hale Basic Yeller fame see Duration column August 1988 sounded great clocked 19000 rpm asked him hopped up said did take out bubble pack came run Granted differences tachometers atmospheric conditions point apparently stock en gines around can hold own hopped-up versions rate Pee Wee 30 event continues roll along competition will naturally get stifferand what can detrimental rest case Gary Buddenbohm sent sample kits Silly Putty DT Systems brother Stan pro duce kits result trying nearly 50 prototype systems before achieving current de sign As mute testimony questions regard ing merits final system Stan won Hand-Launched Glider event 89 AMA Nats using SDT system Gliders took kits CIA Central Indiana Aeromodel ers club meeting recently generated considerable interest Although Ive mentioned gadget col umn before Ill repeat tab $5 either HLG Small Rubber kit cludes appropriate instructions Want mailing address SDT Systems 5652 Mainhardt Rd Westminster CA 92683 Take fire haz ard out flying try Preventive maintenance department beauty neatly covered fuselage framework Continued page 166 162 Model Aviation Name Street Address City 7in Works great less filling Now avalable ty Lit.. workis first premium grade light plywood Mighty Utes uIb smooth grain finish alows limited filing virtualy no flaldng saving hours precious buidhig time Mighty Ut bonds easfly ZAP other CAs cuts like butter X-ACW knife Shattering splintering warping mildew thing past Mighty Lites quality formula tion currently being used leading manufac turers inckJding BOB VIOLETT MODELS HOUSE OF BALSA because its superior strength-to-weight ratio So youre tired shattering experiences next time right. Mighty Litel Migt Lit Hum kiss Fru*Tlano Enhrpdmus 20130 Slim Road Genitos Cdfomls 90712400 SW 85th brace Dcle Florida 33324 213860-1276 473-2211 Mighty Lit avaflhitle bettif hobty stores ewywheiu ui may olsr dfrect ra0orlal sales office neffeet FF Duration/Murphy Continued page 162 Rubber Endurance model has always pleasure view small sticks ar ranged purposeful geometric fashion fore uncommon experience spinal twinge sound wound rubber exploding associated crackling fuselage being destroyed within current popular use winding tubes has offset otherwise disaster Rubber fliers have become interested methods dam age control preventive maintenance Much has written subject design front-end rubber motor hooks ensure rubber retained securely thereby preventing climbing prop shaft slipping off wound stage what other endthe lowly anchor peg rear model just impor tant accomplishing its function nonfailure mode illustrious front-end mechanisms think about broken peg slips out its retainer just damaging model exploding motor might Motor pegs have gone simple short lengths hardwood dowel stronger reli able lengths metal tubing aluminum dural hard brass steel possible peg break age deformation taken care next precau tion devise method prevent peg slipping Out its retention holes sides fuselage initially constructed peg holes fuselage usually made fit rear motor peg rather snugly prevent its slippage time become loose repeated insertion extraction pegplus pressure cxerted front side hole wound rubber Thus fit begins get sloppy danger motor peg slipping out increases Allan Schanzle solves problem taken Bat Sheer newsletter cementing appropri ate-sized 0-rings inside fuselages en circling motor peg holes Actually mounts 0-ring little sandwich box 3/ sheet balsa capped either side / plywood hole drilled center A6 sheet balsa square accommodate outside diameter 0-ring 4 plywood caps drilled smaller center hole admit motor peg inside diameter selected 0-ring slightly smaller diameter motor peg 0-ring placed its nest inside / sheet balsa block /~ caps ce mented open ends block trap 0-ring inside assembly cemented place inside fuselage open ing ply cap neatly centered motor peg hole fuselage structure Its neat out sight once model covered re tains motor peg snugly Allan doesnt say would seem doing just peg holes fuse lage would suffice cases Anyway thought good idea caught another good idea retaining mo tor peg Bud Browns Mulvihill models recent contest Lawrenceville IL Bud re tains rear motor pegs small steel C-rings placed around outside motor peg adja cent exterior side model after rub ber motor has installed C-ring size several sizes chosen fit over aluminum dural motor peg tube uses pair special pliers made install C-rings remove motor peg C-ring must first removed special pliers Most hardware auto parts store will carry both 0and C-rings well C-ring pliers Making neat job applying standard light weight fiberglass cloth reinforcement area model often easily accomplished because stuff flexible cut edges have mind own dope epoxy applied Arguing ticked-off wildcat can ten fruitful less traumatic Bob Beecroft solves dilemma making own brand fiberglass tape reinforcing wing dihedral joints First stretches goodsized patch virgin cloth over hardwood frame retains cloth snugly frame masking tape stretching cloth di rections much possible brushes full-strength dope spaced vertical stripes up down cloth undoped spaces between doped stripes determine eventual width fiberglass tape desired artwork dry removes frame cuts cloth tape strips down middle vertical-dried-dope areas prefers use pinking shears cut manu factured tape strips neat uniform saw tooth edges lend look professionalism dried dope prevents edges unraveling tape can now easily applied dope CyA epoxy rise blood pres sure filling shop air profanity still-flexible center portion tape lends merit process instances area reinforced compound-contour surface Walt Rozelle recently tempted sending small swatch stiffened fiberglass cloth about size fig leaf An inquiry could get grubby mitts personal supply swered five-step yourself set inContinued page 168 166 Model Aviation 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
Edition: Model Aviation - 1990/02
Page Numbers: 60, 61, 162, 166, 168
NFFS NEWS Apparently green light now burning brightly both Indoor Outdoor Free Flight portions AMA Nationals relinquished National Free Flight Society NFFS 1990 plan Indoor por tion married traditional US door Champs fine facilities Johnson City TN June 7-10 Outdoor FF por tion separated July 14-22 RC CL Nats activities being delayed until third week October Lawrenceville IL now exact October date under study Tony Italiano team facilitate some time spread between US FAI FF team finals Lost Hills CA turn being resched uled new dates September 22-24 1990 Moving USOC/AMA FF Nats date Out other two weeks will insure added advantage year-end crops fields around Mid American Air Center contest site near Law renceville IL being Out way midOctober October date desirable school-in-session standpoint Law renceville site utilized Free Flight little alternative time Because school problem specific Junior/Senior Former AMA National Champion US FAI Power team member Bob Ssifleet L won B Gas Empire State Champs last August SuperTigre 29-powered British-designed classic Nig Nog total flight time over 17 mm David Rosenburg R winds Coupe dHiver entry Empire State Champs Murf notes line trees must upwind flying site Photos J Bocckinfuso 60 Model Aviation Free Flight Duration Harry Murphy 3824 Oakwood Blvd Anderson IN 460 I Ch Phil McCary Larry Jenno mounted modified Cox Pee Wee 020s models fine Charlie Atkinson design win first second respectively 89 US FF Champs An example Rubber Scale its finest AA Lldbergs latest plans offering 1930 Racing Monocoupe Nine-year-old daughter Annie helps dad Al show off fine 29-inspan prototype model Photo Lidberg Fred Blom L won Old-Timer event WNYFFS affair K&B Torpedo 29-powered Brooklyn Dodger Ship looks newno covering patches John Clapp R returns Free Flight after 25-year absence plane NosGas-eligible GEEF John siad love over again seems beginner/novice FFers just getting little older 25 years ago Photos J Bocckinfuso events will flown Saturday details about will follow also watch announce ments Competition Newsletter Section magazine-RMcM several years people have thought separated Nats would remedy plight Free Flight Apparently real ized Therefore appears time re sponsible men rise occasion support opportunity again control destiny mestic Free Flight competition brings old adage mind simply states yells loud enough long enough ye shall heard So NFFS prexy Tony Italiano has appointed Joe Foster chairman annual Ten Models Year committee 1990 Hardy Brodersen will handle 1990 NFFS Symposium chores Tony will accept nominations Free Flight Hall Fame inductees usual address sending mode] design nominations Joe Foster 3771 Timberline Dr. San Jose CA 95121 papers articles Hardy Brodersen PO Box 1104 Biirmingham MI 48012 Hall Fame inductee considerations go AJ Italiano 1655 Revere Dr Brooktield WI 53005 lot work involved getting information sifted Out annual Sym posium midsummer preserved Free Flight posterity should participate make contributions early possible So take pen hand now fellas FF New York refreshing receive infor mation respect Free Flight activity out East comes via group photos sent Jim Bocckinfuso Brooklyn Skyscrapers photos taken Empire State Champs held Fayette NY weekend August 1920 1989 annual two-day contest under sponsorship Western New York Free Flight Society CD Brooks Goodnow offered full range Free Flight compe tition Since often get input area shall permit plug 1990 offer four photos indicate what might have missed attending 1989 Good show fellas Mail order hobby shop items Pen pal Al Lidberg heard once again latest design efforts pertain fat stubby favorite Rubber Scale enthusiasts 1930 Monocoupe Racer Al offers highly detailed plans $6 postpaidand can receive catalog normally costs buck free ask Monocoupe order catalog contains other items plans include three racing versions rang ing 40-in-span original down clipped-wing 29-in version Johnny Livingston flew famous full-scale aircraft 41 first places 65 racing starts 1931 superseale plans Al can address AA Lidberg Model Plan Service 614 E Fordham Dr Tempe AZ 85283 Anyone might seeking information rel ative obtaining Siberian-made Cikion Cy klone Cyclone FIC engine may write Mack Henry 269 Elysian Fields Nashville TN 37211 Mack advises information en gine distributed US fliers Euro pean Champs past summer engine comes complete overflow brake devic es Power claims I horsepower 2800030000 rpm suggested price about $280 Mack also has FIB Wakefield front end available variable-pitch prop starting delay torque autostop features about $80 photos sent made Xerox-type copier dont appear satisfactory printing column magazine Anyway Mack can tell should interested Argo-USA familiar name OldTimer FF enthusiasts company supplies number engine reproduction efforts such Orwick 29 32 64 Edco Sky Devil 65 number British-made diesel en gines Enthusiastic customers have come both Vintage RC Free Flight communi ties Among diesel offerings Elfin 249 engine led comparatively quiet existence US some time since diesels have never very popular domestic front Continued 017 page 162 February 1990 61 Buddenbohm brothers Silly Putty D-T SDT System kit seen two ver sions upper Hand-Launched Glid ers lower small Rubber-power ships Glider versions Silly Putty trough carved structure builder Theres info column Phil McCary Larry Jeno teamed up produce modified Cox Pee Wee 020 engines use Pee Wee 30 Free Flight event first glance might think just look ing two examples vintage Cox Thermal Hopper 049 produced early Fifties overlapping cloth pieces until youve covered entire mold twice Make sure resin doesnt pooi bottom Lay mold its side keep turning over couple minutes un til begins kick off Leave epoxy part mold least three days poly ester part should left overnight part light heavy fiber glass its made youre removing very lightweight part mold careful compressor could turn part inside out Youre better off leaving -in cloth overlap around edge extra bulk Heavier parts can blown out relative ease After removing part wash mold water dry thor oughly rewax apply another coat PVA Youre ready mold another part Advice If problems develop have difficulty working out Ill gladly try help please dont telephone Send SASE along description prob lem MH Pickard Fiberglass Master Inc Rt 1 Box 530 Goodview VA 24095 Fiberglass Corporation good source supplies youll need preparing plugs casting molds parts Contact company 1944 Neva Dr Dayton OH 45414 telephone 1-800/821-3283 1513/274-1 159 Ohio good source polyurethane foam contact St Rux Corp 100 E Montauk Hwy Lindenhurst NY 11757 telephone 1-516/9578000 FF Duration/Murphy Continued page 61 However Elfins popularity has recently sky rocketed SAM Society Antique Model ers Class events became apparent probably powerful trouble-free its ignition contemporaries such old Class standbys Arden 199 Ohlsson 19 Bantam 19 etc Having declared legal SAM competi tions British-made Elfin 249 repro-engines have certainly made imprint instance however supplies currently exhausted Argo-USA has recently issued notice due hundreds requests diesel now manufactured right US well-known reliable manufacturer Ap parently laws supply demand still valid certainly good news Should re quire additional information price availability new repro venture just write Argo-USA. 3229 Dianora Dr Palos Verdes Peninsula CA 90274 Tell em Duration told about engine info comes us Phil McCary/Larry Jenno venture modifies minute Cox 020 Pee Wee engine accept ven turi system reminiscent old TD Thermal Hopper modification also includes custommade three-prong radial engine mount Natural ly intent hop-up effort use Pee Wee 30 event first question comes mind results Well mounted business end model designed Charlie Atkinson called Hi-Roller obviously stemming Las Vegas won Phil Larry first second places 1989 US Free Flight Champs last May also entrants max out Phil claims 18000-20000 rpm 40%-nitro fuel using standard 45 x 2 Cox gray plastic prop cut down 425 x 2 prop blades also thinned some balanced Phil Larry like start early thinwalled-cylinder 020s claiming have better piston/cylinder fits what currently being produced reed body machined off tank intake tube cut down collar made fit over intake tube threaded ac cept Cox TD 020 venturi needle valve sembly gas tank machined off meth ods mounting engine thereby elimi nated new three-pronged adapter mount machined hard aluminum fulfill re quirement Thats What see what get Technically appears start good engine put TD 020 needle valve sembly itbut sure looks nice too Hi-Roller sports 8% airfoil wing 6% stab Both wing stab undercambered Should wish additional infor mation engines model both send SASE Phil McCary Jr 532 College Dr 2l2 Henderson NV 89015 Personally think ventures such healthy model competition though takes place so-called beginners event Im too sure Pee Wee 30 constitutes beginners event anyway since seems competi tors area contest circles participate have flying Free Flight years Maybe should listed under heading fun event instead FF event fun particular event liking dividual However FFers like same events reason have eventsand put tachometer stock Cox Pee Wee 020 fall belonged Bill Hale Basic Yeller fame see Duration column August 1988 sounded great clocked 19000 rpm asked him hopped up said did take out bubble pack came run Granted differences tachometers atmospheric conditions point apparently stock en gines around can hold own hopped-up versions rate Pee Wee 30 event continues roll along competition will naturally get stifferand what can detrimental rest case Gary Buddenbohm sent sample kits Silly Putty DT Systems brother Stan pro duce kits result trying nearly 50 prototype systems before achieving current de sign As mute testimony questions regard ing merits final system Stan won Hand-Launched Glider event 89 AMA Nats using SDT system Gliders took kits CIA Central Indiana Aeromodel ers club meeting recently generated considerable interest Although Ive mentioned gadget col umn before Ill repeat tab $5 either HLG Small Rubber kit cludes appropriate instructions Want mailing address SDT Systems 5652 Mainhardt Rd Westminster CA 92683 Take fire haz ard out flying try Preventive maintenance department beauty neatly covered fuselage framework Continued page 166 162 Model Aviation Name Street Address City 7in Works great less filling Now avalable ty Lit.. workis first premium grade light plywood Mighty Utes uIb smooth grain finish alows limited filing virtualy no flaldng saving hours precious buidhig time Mighty Ut bonds easfly ZAP other CAs cuts like butter X-ACW knife Shattering splintering warping mildew thing past Mighty Lites quality formula tion currently being used leading manufac turers inckJding BOB VIOLETT MODELS HOUSE OF BALSA because its superior strength-to-weight ratio So youre tired shattering experiences next time right. Mighty Litel Migt Lit Hum kiss Fru*Tlano Enhrpdmus 20130 Slim Road Genitos Cdfomls 90712400 SW 85th brace Dcle Florida 33324 213860-1276 473-2211 Mighty Lit avaflhitle bettif hobty stores ewywheiu ui may olsr dfrect ra0orlal sales office neffeet FF Duration/Murphy Continued page 162 Rubber Endurance model has always pleasure view small sticks ar ranged purposeful geometric fashion fore uncommon experience spinal twinge sound wound rubber exploding associated crackling fuselage being destroyed within current popular use winding tubes has offset otherwise disaster Rubber fliers have become interested methods dam age control preventive maintenance Much has written subject design front-end rubber motor hooks ensure rubber retained securely thereby preventing climbing prop shaft slipping off wound stage what other endthe lowly anchor peg rear model just impor tant accomplishing its function nonfailure mode illustrious front-end mechanisms think about broken peg slips out its retainer just damaging model exploding motor might Motor pegs have gone simple short lengths hardwood dowel stronger reli able lengths metal tubing aluminum dural hard brass steel possible peg break age deformation taken care next precau tion devise method prevent peg slipping Out its retention holes sides fuselage initially constructed peg holes fuselage usually made fit rear motor peg rather snugly prevent its slippage time become loose repeated insertion extraction pegplus pressure cxerted front side hole wound rubber Thus fit begins get sloppy danger motor peg slipping out increases Allan Schanzle solves problem taken Bat Sheer newsletter cementing appropri ate-sized 0-rings inside fuselages en circling motor peg holes Actually mounts 0-ring little sandwich box 3/ sheet balsa capped either side / plywood hole drilled center A6 sheet balsa square accommodate outside diameter 0-ring 4 plywood caps drilled smaller center hole admit motor peg inside diameter selected 0-ring slightly smaller diameter motor peg 0-ring placed its nest inside / sheet balsa block /~ caps ce mented open ends block trap 0-ring inside assembly cemented place inside fuselage open ing ply cap neatly centered motor peg hole fuselage structure Its neat out sight once model covered re tains motor peg snugly Allan doesnt say would seem doing just peg holes fuse lage would suffice cases Anyway thought good idea caught another good idea retaining mo tor peg Bud Browns Mulvihill models recent contest Lawrenceville IL Bud re tains rear motor pegs small steel C-rings placed around outside motor peg adja cent exterior side model after rub ber motor has installed C-ring size several sizes chosen fit over aluminum dural motor peg tube uses pair special pliers made install C-rings remove motor peg C-ring must first removed special pliers Most hardware auto parts store will carry both 0and C-rings well C-ring pliers Making neat job applying standard light weight fiberglass cloth reinforcement area model often easily accomplished because stuff flexible cut edges have mind own dope epoxy applied Arguing ticked-off wildcat can ten fruitful less traumatic Bob Beecroft solves dilemma making own brand fiberglass tape reinforcing wing dihedral joints First stretches goodsized patch virgin cloth over hardwood frame retains cloth snugly frame masking tape stretching cloth di rections much possible brushes full-strength dope spaced vertical stripes up down cloth undoped spaces between doped stripes determine eventual width fiberglass tape desired artwork dry removes frame cuts cloth tape strips down middle vertical-dried-dope areas prefers use pinking shears cut manu factured tape strips neat uniform saw tooth edges lend look professionalism dried dope prevents edges unraveling tape can now easily applied dope CyA epoxy rise blood pres sure filling shop air profanity still-flexible center portion tape lends merit process instances area reinforced compound-contour surface Walt Rozelle recently tempted sending small swatch stiffened fiberglass cloth about size fig leaf An inquiry could get grubby mitts personal supply swered five-step yourself set inContinued page 168 166 Model Aviation 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