Radio Control: Old-Timers

Radio Control Old-Timers DrDB Mathews SPARKERS June column men tioned availability replacement partsincluding ignition timers pointsfor old spark-ignition engines have lying around years unused Also seems issue magazine contains new ads reproductions various old ignition-type power plants Therefore seems obvious RC-Assist fliers going have ignition engines fly first time modeling experiences Since first exposure model airplane ignition systems can bring about onset case anxieties some modelers Ive asked Bill Schmidt lives Wichita KS share nuts bolts aspects operating sparkers since has vast range experience has successful obtaining maximum power engines guest columnist Bill Schmidt Schmidts sparker spectrum large problem faced connoisseur oldtime ignition engines bench-run ning engines complex wiring required Compared glow-plugged engine sparker requires time-con suming error-prone batch wires coil condenser etc solution extensive break-in testing programs has simple quick-disconnect ignition unit totally self-contained transistorized switcher other required compo nents mounted inside plastic box entire system built inside flexi ble plastic refrigerator-type vegetable con tainer Tupperware like bought discount store $232 wiring run through lid box instead sides because box has opened now again ser vicing push-pull switch local auto parts store set up push-Off p Bill Schmidts refrIgerator-box action MinI-allIgator clips ground point wires making connectIng up cinch Plug connection via usual clamp-connector high-tension lead Pull-On push-Off switch auto supply store actually safety-related feature quick hit shuts down engine engines photos appear McCoy 60 L Doollng 61 R 50 Model Aviation quick bump arm elbow will shut engine down both hands otherwise occupied can big safety factor event some engine starts slipping off clamps prop jumps loose quick slap can save day whereas common toggle switch can prove impossi ble throw excitement An ammeter zero-to-five amp range equally important reveals points working monitors current-draw reveal battery condi tion coil saturation engine running reveals amount dwell being exhibited points Continued page 132 Hobby Horn VNSNVSNVNVPN2 - -LV Old Timer - 2$2k born 4jJ[ / LAaZOs 8 Gas 9Ec0a ERCASER 1941 BROOKLYN DODGER 56 Cabin EWEST5 Retail $529S05INTRODUCTORY PRICE* $3900 1936 Record Breaker 96 $69 56 1939 Zipper 5f$t3 96 1938 Kloud King 63 $4236 1941 Brigidier 56 $6076 1941 Super Quaker 78 $7276 1940 So Long 50$3036 1936 Buccaneer 94 $5996 1938 Clipper MKI 72$4156 1937 Dallaire 108 $75 16 1935 Miss Anserica 84$7196 1961 Playboy Sr 80 $5116 1941 Playboy Jr 54 $3116 1938 Powerhouse 84 $53 56 1940 Sailplane 78 $8676 1938 Trenton Terror 72 $6076 1940 Ranger 6653196 1939 Korda Wake 44 $1916 1939 Mescury 72 6 kits qusbfy SAM events FE & RIG festure highest quslity machine cut & sanded ports Superior Competition sheet sod strip wood wire & window moterisi Plans orig FF models easily convertible 3ch R/G KlTS Sailplanes Electric power Gas Hol7by Horn SENSOAR Glider 70 $1980 Midway Model GNOME R/C Hand Launch Glider$2408 Jolly Models FLINGER RIC HLG 58 Span $2480 Midway Model FAST EDDIE Aerobatic /95 Elec$1900 Jolly Models ELECTRICUS Electric Glider 05s$3250 Leisure PLAYBOY SR 67 Gear 05 Elect $3000 Astro ASTRO SPORT 37 Direct 05 Elect $2250 Leisure WASP 37 Direct 00 Electrics $2250 Midway ULTRA MK IV 06 Geared 04 EP $3900 Midway FLYING QUAKER 04 40-45 4 stroke $6476 4ks/Midway DENNY JR 72 Alum Cowel $6396 4ks/Midwav BUZZARD BOMBSHELL 7255196 FULL LINE OP ELECTRIC SYSTEMS s Avail SHIPPING & HANDLING 64 Page CATALOOUE Up 10 $809 add $150 $200 PP/lst Class 5801to $2800 add $225A copy mill sent $2001 $4500 add $300 freewhen requested $4501 $7000 add $350 order over $7990 add $400 HOBBY HORN CA Addressees add 66 tam 15173 Moran St [Al Send MO Visa/MC#-i-Eap po Boa 2212 Check allow up 30 Westminster Ca 92684 days CK clearance 7141 8930311 COD Emact Charges plus $150 Hdl Cash OnlyAft Hrs 714 89512031 August 198551 Alex lmrle ot SAM 36 England demonstrates L some rework GNU engine will actually run model King Burd Nor info see Docs June 1982 column Photo SAM Speaka Jorge Nunez New Rulerscene Cuba 1941 F red Cam poe sent phofo says short guy backside showing likely Generalisimo Batista himself LEADER IN SMALL AIRFOIL TECHNOLOGY MASIER AIRSCREW NOW IN 21 SIZES! K Series 4-strokes 12 x 613 x 614 x 6 14 x 8and 16 x 6 Soon 16 x 8 K Series features safety tips GIF Series sizes 7 11 including 10 x 6 pusher 5 Sizes 1/2A Engines Injection-molded outstanding performance durability Moderately priced MASTER AIRSCREW QUALITY ACCESSORIES available dealer Razor Plane micro-adlustable heavy-duty industrial blade accurately held two locating screws has best operating Razor Plane market Replace ment blades available $495 sugg retail Precision stripwood easy Master Airscrew Balsa Stripper Strips up /2 wide k can cut quickly sheet stock Uses standard type 11 blade $495 in-line fuel filter outstanding value threaded 2-part aluminum body has 120 mesh s/s screen removable easy cleaning $119 ea WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa CA 95401 SWI NGEE ALL YOU NEED anew buHtIncontrolhorni$ 295/pair Meeni Swing. joel like hItge No 1u154. Foe ailenon peas dent nmda lteny toeqe red beta niralahi toohnod toSwtng. pen en KnielcOnka beilorank. mm witi - SIINGEE5 USA *son gene eonfroaem linkage sladeahi sloppy noetnol HARD TO FIND ITEMS coerpintely new generation controihon now anailable onery nodeler Swingee thin onlose denion will henelit onety nodeBLISWQtLtQhIOOS noaring pattern pylon nyontllpeDPteose send e. pa Se opec $ 2 95... Swingee totally bout-in kaoPn i-OThER PRODUCTSIlPlease send __________A $ 29h...... otoitaerottynamlccleanThlnwllloiooarnelm-lt ly include $ 295 handling fee prooehoththeeppesrenceondpetlonnanoeoter'sed wy check lot- $ enety tnodel Swingee eanily Installed Rl9QIflg COUP andllnkeddireotlpnaoinOKwiok-linknandhnll Pasirrod ends yOVmsainetsDMten orenkn Thin redosen notnhentreaded M2 eye 1 mm ~hoct no ___________ Enpdate Na-___________ linkagen thereto$295115 pcodet-ess _________________________________________ Increanen oreninion connidetbde linde Itoh-In irpet-viocs toSteel pipe clampsSeed tauGLlnternatienol AS Ens 3459 tenteratare changes52954pcsS-t6203 VellioghySIIEDEW RC Electrics/Kopski Continued page 129 works becomes multimeter meters having very useful measurement ranges package Later well see some resistors used make dif ferent voltage ranges others used make current ranges insight multimeters work will make using snapsimply because will make sense will add greatly understanding what really goes airborne wiring charger other electrical things well Finally closing impact consider electrical power needed move exam ple movement full-scale can get previous lessons Thus P Xo x 50/1000000 P one-millionths watt about one-half-a-billionth power typical 05 Electric flight motor Heres another new Electric event add calendar Daniel Boone Silent Fliers have scheduled Sixth Annual 2-Meter Sailplane Contest Saturday Sunday September 28 29 year adding Electric event normal activities day indepen dent have two opportunities show Electric stuff Electric event Duration event open Electrics size motor Ni-Cd battery No rules event will flown rounds just like Sailplanes can fly out full charge flight Flight maxes possible tasks will established CD idea promote Electric Sounds familiar information please contact Contest Director Jerry Zeigenfuse 8 Craig Drive Reading PA 19606 tele phone 215 779-3229 Please forward questions SASE author Bob Kopski 25 West End Dr Lansdale PA 19446 may Happy Electric Landings yours RC Old-Timers/Mathews Continued page 51 term dwell something never finds mentioned old articles books subject some thing mystery modelers true old-timers ran things game town Dwell defined length time points closed during 3600 crankshaft rotation Normally dwell between 90 0and 130 little dwell coil saturated long enough deliver strong spark too much planes on-board ignition battery-pack will drained excessively Successful operation miniature model ignition engines depends degree dwell just does automobile lawn mower engines High-speed racing engines McCoy Dooling etc turn over 10000 rpm can use dwells over 1200 draw excessive current however lower-rpm engines should set range 950 1100 ammeter should show battery current engine running about 1A amp less current dwell set too long models onboard battery pack wont last long using quick-box merely clamp favorite old sparker engine onto universal mount slide box behind clip three alligator-clip-equipped wires appropriate places Minus ground preferably right handy spot engine Plus point lead high-tension lead spark plug Its ready fire up drawing wiring dia gram parts list should enable anyone construct extremely handy device few tips using quick box Look circuit notice coil always connected batteries fear bit current will flow until transistors Base connection tickled Dealer Inquiry Invited 3405 Cleveland Ave SW Canton OH 44707 Ssnd$lforCutalog 84-6810 aRoUsH MFG 132 Model Aviation BUILDS QUICK3itukkrr r1FLIES GREAT Au Economical Clange ENGINE __________ 09 15 RADIO CHANNELS .-2 3 TOP WINGSPAN L WING AREA ..460 sqin FLYING WEIGHT_______ 38 oz WING L0ADINGll9 ozsisqf KIT FEATURES ALL 1ST QUALITY BALSA AND PLYWOOD MACHINE CUT RIBS AND HARDWOOD PARTS FORMED COWL AND WIRE PARTS APPLE MODEL PRODUCTS 7241 Kersten StCitrus Hts Ca 95621 TEL #916/722-7035 ONLY $4195 TOORDIN SEND EK se MO ADD 5250 niio coo $500 CA RES ADD 6Z TAX Super sport flier turnaround patternI Balsa & ply construction 70 span 927 sq area 7A -8A lbs139 75-12 co 20-ohm resistor limits current ross points 60-70 mA bat ries will last very long time wiring must least 16 gauge randed wire except lead ie transistor Base lead ignition ints current four amps flows rerywhere system except tickler circuit points cir ut can easily conduct 60 mA through 20-gauge wire So see very fl spark can generated also fly circuit models using vo Ni-Cd batteries place glow ug batteries quick box use riife-switch made brass shim stock plane sure connections ell-soldered resin-core solder never e acid-core solder electrical circuits cardinal error committed modelers r over 50 years ignition flying has iskimp wire size have poor ilder connections Youve got remem r dealing four amps 2/2 three volts herea mere 10 12 attsso theres certainly much mph available takes little bit sistance ignition circuit reduce ficiency performance hurry outstanding feature circuit primary circuit soldered closed rmanently no switch rcuit fail cause resistance uflie troubleshooting hints Check nition coil electrical continuity primary its secondary good coil ill show about 3500 4700 ohms sistance spark coil open roken wire etc will still sparkuntil e engine compression Since circuit Im using has no con unser little troublemaker no nger threat However RC use put 1000 10000 ohm resistor high asion lead spark plug end ill help suppress RF interference sistor must plug-end lead good Use least amount sistance possible can experiment ith turning RC receiver ud shorting ignition systems timer ad ground small screwdriver ud watching planes control surfaces ir glitches fly both Futaba Cannon radio ud have never need shielding uything model try keep ill ignition module forward vay radio equipment udes battery has found pick up RE interference using Fl Electronics CD electronic ignition stem plane Doc coil will function metal ar Always mount wood astic clamps etc Finally Doc Mathews discovered ur last time out clamp-type bat ry boxes used back dont work uy better now either batteries Lould held elastics youre ing blamed things Better Continued page 136 II I II I I I I I I I I I I I I 1 I I I I I I I August 1985 133 I THE RADIO CONTROL BUYERS GUIDE new 9th edition now local hobby shop contains thousands photos product descriptions radio control raft Cars s ems nes ware Accessories s os RCBG single largest source infor mation RIO modeling available Whether youre advanced R/Cer eager novice RCBG will master reference So before plunk down hard earned cash-Look Before Buy available locally may send $995 plus $175 shipping Radio Control Buyers Guide Dept 100 Clifton House Clifton VA 22024 sure indicate street address still solder battery tabs circuit stuff batteries inside Thats end Bills guest article Id like add few notes about him First man makes living designing installing remote-monitoring control ling equipment municipal water sys tems like employed Minneapolis Honeywell years claims got job because took along homemade Berkeley Aerotrol system impressed interviewer hired him spot Also Bill restoring collecting antique sparker engines has begun making piston rings could see process Dee B Mathews 8420 Nantucket Wichita KS 67212 Mind/Andersen Continued page 55 bureaucracy replied Well about buying own place asked would have go out bids congressman would want district MAGIC MAGNET BUILDERW Eldon J Lind Co 2912 Walker Lee Los Alamitos CA 90720 Impossible Im afraid flying site place available Well okay said its national interest Just red telephone Presi dents desk rang Oh God its World War Three thought President picked up phone spoke greeting stumbling Russian continued English Yes hes rightnow dontyou ask him yourself President said caller other end hot line telephone Its Premier Soviet Union said cupping hand over mouthpiece wants speak took telephone trembling hands deciding simultaneously let some else become club president next year greeted Premier inquired might service Comrade said Did know fly RC too No kidding remarked What flying just test-hopped Aeromaster made American kit Its covered British heat-shrink plastic has Japa nese radio Italian engine wood Ecuador wheels Malaysia French glue its built German tools sanded Norwegian sandpaper Im being criticized being soft interna tional capitalism biggest problem Kremlin really bad place too fly Too walls too much interference electronic surveillance no privacy What need place can escape pressures high office need place can reach out feel space time refresh tired brain drawing castor oil trails across deep blue sky Would club mind if. Gee Bee Y/Haffke Continued page 57 housing its 215-hp Lycoming engine bigger engine installed new cowl bumps rocker arms fitted Art Knapp Bob Hall have photo Hall Knapp standing next original apparently just after flown first time its new engine Later modifications 1933 craft included closing landing gear legs installing cover over ward cockpit forward windshield stowed under cover racing Ken has cover forward windshield puts needs did test flying cockpit covered windshield installed Ken left landing gear legs open Ken started Gee Bee January 1977 Work progressed slowly since could work during slow months business owns glass service company built several aircraft before tackling Model Y 136 Model Aviation LILJAZLL 13311 Beach Ave na Del Rey CA 2 821-6242 An Weal way build balsa construc ted model airplane wing% fuselage atabiilzers elevators rudders Build fast easy straight true Makes other methods obsolete CONTENTS 1 -16x48 STEEL PLATE 30- MAGNETS 60- MAGNETIC POLES 10-5 UPRIGHTS 10-1 x 10/32 BOLTS 10-10/32 NUTS useful tool wili last lifetime nothing wear out Magnetically holds balsa parts place gluing No damagec split weakened wood using pine

Radio Control Old-Timers DrDB Mathews SPARKERS June column men tioned availability replacement partsincluding ignition timers pointsfor old spark-ignition engines have lying around years unused Also seems issue magazine contains new ads reproductions various old ignition-type power plants Therefore seems obvious RC-Assist fliers going have ignition engines fly first time modeling experiences Since first exposure model airplane ignition systems can bring about onset case anxieties some modelers Ive asked Bill Schmidt lives Wichita KS share nuts bolts aspects operating sparkers since has vast range experience has successful obtaining maximum power engines guest columnist Bill Schmidt Schmidts sparker spectrum large problem faced connoisseur oldtime ignition engines bench-run ning engines complex wiring required Compared glow-plugged engine sparker requires time-con suming error-prone batch wires coil condenser etc solution extensive break-in testing programs has simple quick-disconnect ignition unit totally self-contained transistorized switcher other required compo nents mounted inside plastic box entire system built inside flexi ble plastic refrigerator-type vegetable con tainer Tupperware like bought discount store $232 wiring run through lid box instead sides because box has opened now again ser vicing push-pull switch local auto parts store set up push-Off p Bill Schmidts refrIgerator-box action MinI-allIgator clips ground point wires making connectIng up cinch Plug connection via usual clamp-connector high-tension lead Pull-On push-Off switch auto supply store actually safety-related feature quick hit shuts down engine engines photos appear McCoy 60 L Doollng 61 R 50 Model Aviation quick bump arm elbow will shut engine down both hands otherwise occupied can big safety factor event some engine starts slipping off clamps prop jumps loose quick slap can save day whereas common toggle switch can prove impossi ble throw excitement An ammeter zero-to-five amp range equally important reveals points working monitors current-draw reveal battery condi tion coil saturation engine running reveals amount dwell being exhibited points Continued page 132 Hobby Horn VNSNVSNVNVPN2 - -LV Old Timer - 2$2k born 4jJ[ / LAaZOs 8 Gas 9Ec0a ERCASER 1941 BROOKLYN DODGER 56 Cabin EWEST5 Retail $529S05INTRODUCTORY PRICE* $3900 1936 Record Breaker 96 $69 56 1939 Zipper 5f$t3 96 1938 Kloud King 63 $4236 1941 Brigidier 56 $6076 1941 Super Quaker 78 $7276 1940 So Long 50$3036 1936 Buccaneer 94 $5996 1938 Clipper MKI 72$4156 1937 Dallaire 108 $75 16 1935 Miss Anserica 84$7196 1961 Playboy Sr 80 $5116 1941 Playboy Jr 54 $3116 1938 Powerhouse 84 $53 56 1940 Sailplane 78 $8676 1938 Trenton Terror 72 $6076 1940 Ranger 6653196 1939 Korda Wake 44 $1916 1939 Mescury 72 6 kits qusbfy SAM events FE & RIG festure highest quslity machine cut & sanded ports Superior Competition sheet sod strip wood wire & window moterisi Plans orig FF models easily convertible 3ch R/G KlTS Sailplanes Electric power Gas Hol7by Horn SENSOAR Glider 70 $1980 Midway Model GNOME R/C Hand Launch Glider$2408 Jolly Models FLINGER RIC HLG 58 Span $2480 Midway Model FAST EDDIE Aerobatic /95 Elec$1900 Jolly Models ELECTRICUS Electric Glider 05s$3250 Leisure PLAYBOY SR 67 Gear 05 Elect $3000 Astro ASTRO SPORT 37 Direct 05 Elect $2250 Leisure WASP 37 Direct 00 Electrics $2250 Midway ULTRA MK IV 06 Geared 04 EP $3900 Midway FLYING QUAKER 04 40-45 4 stroke $6476 4ks/Midway DENNY JR 72 Alum Cowel $6396 4ks/Midwav BUZZARD BOMBSHELL 7255196 FULL LINE OP ELECTRIC SYSTEMS s Avail SHIPPING & HANDLING 64 Page CATALOOUE Up 10 $809 add $150 $200 PP/lst Class 5801to $2800 add $225A copy mill sent $2001 $4500 add $300 freewhen requested $4501 $7000 add $350 order over $7990 add $400 HOBBY HORN CA Addressees add 66 tam 15173 Moran St [Al Send MO Visa/MC#-i-Eap po Boa 2212 Check allow up 30 Westminster Ca 92684 days CK clearance 7141 8930311 COD Emact Charges plus $150 Hdl Cash OnlyAft Hrs 714 89512031 August 198551 Alex lmrle ot SAM 36 England demonstrates L some rework GNU engine will actually run model King Burd Nor info see Docs June 1982 column Photo SAM Speaka Jorge Nunez New Rulerscene Cuba 1941 F red Cam poe sent phofo says short guy backside showing likely Generalisimo Batista himself LEADER IN SMALL AIRFOIL TECHNOLOGY MASIER AIRSCREW NOW IN 21 SIZES! K Series 4-strokes 12 x 613 x 614 x 6 14 x 8and 16 x 6 Soon 16 x 8 K Series features safety tips GIF Series sizes 7 11 including 10 x 6 pusher 5 Sizes 1/2A Engines Injection-molded outstanding performance durability Moderately priced MASTER AIRSCREW QUALITY ACCESSORIES available dealer Razor Plane micro-adlustable heavy-duty industrial blade accurately held two locating screws has best operating Razor Plane market Replace ment blades available $495 sugg retail Precision stripwood easy Master Airscrew Balsa Stripper Strips up /2 wide k can cut quickly sheet stock Uses standard type 11 blade $495 in-line fuel filter outstanding value threaded 2-part aluminum body has 120 mesh s/s screen removable easy cleaning $119 ea WINDSOR PROPELLER CO 384 Tesconi Ct Santa Rosa CA 95401 SWI NGEE ALL YOU NEED anew buHtIncontrolhorni$ 295/pair Meeni Swing. joel like hItge No 1u154. Foe ailenon peas dent nmda lteny toeqe red beta niralahi toohnod toSwtng. pen en KnielcOnka beilorank. mm witi - SIINGEE5 USA *son gene eonfroaem linkage sladeahi sloppy noetnol HARD TO FIND ITEMS coerpintely new generation controihon now anailable onery nodeler Swingee thin onlose denion will henelit onety nodeBLISWQtLtQhIOOS noaring pattern pylon nyontllpeDPteose send e. pa Se opec $ 2 95... Swingee totally bout-in kaoPn i-OThER PRODUCTSIlPlease send __________A $ 29h...... otoitaerottynamlccleanThlnwllloiooarnelm-lt ly include $ 295 handling fee prooehoththeeppesrenceondpetlonnanoeoter'sed wy check lot- $ enety tnodel Swingee eanily Installed Rl9QIflg COUP andllnkeddireotlpnaoinOKwiok-linknandhnll Pasirrod ends yOVmsainetsDMten orenkn Thin redosen notnhentreaded M2 eye 1 mm ~hoct no ___________ Enpdate Na-___________ linkagen thereto$295115 pcodet-ess _________________________________________ Increanen oreninion connidetbde linde Itoh-In irpet-viocs toSteel pipe clampsSeed tauGLlnternatienol AS Ens 3459 tenteratare changes52954pcsS-t6203 VellioghySIIEDEW RC Electrics/Kopski Continued page 129 works becomes multimeter meters having very useful measurement ranges package Later well see some resistors used make dif ferent voltage ranges others used make current ranges insight multimeters work will make using snapsimply because will make sense will add greatly understanding what really goes airborne wiring charger other electrical things well Finally closing impact consider electrical power needed move exam ple movement full-scale can get previous lessons Thus P Xo x 50/1000000 P one-millionths watt about one-half-a-billionth power typical 05 Electric flight motor Heres another new Electric event add calendar Daniel Boone Silent Fliers have scheduled Sixth Annual 2-Meter Sailplane Contest Saturday Sunday September 28 29 year adding Electric event normal activities day indepen dent have two opportunities show Electric stuff Electric event Duration event open Electrics size motor Ni-Cd battery No rules event will flown rounds just like Sailplanes can fly out full charge flight Flight maxes possible tasks will established CD idea promote Electric Sounds familiar information please contact Contest Director Jerry Zeigenfuse 8 Craig Drive Reading PA 19606 tele phone 215 779-3229 Please forward questions SASE author Bob Kopski 25 West End Dr Lansdale PA 19446 may Happy Electric Landings yours RC Old-Timers/Mathews Continued page 51 term dwell something never finds mentioned old articles books subject some thing mystery modelers true old-timers ran things game town Dwell defined length time points closed during 3600 crankshaft rotation Normally dwell between 90 0and 130 little dwell coil saturated long enough deliver strong spark too much planes on-board ignition battery-pack will drained excessively Successful operation miniature model ignition engines depends degree dwell just does automobile lawn mower engines High-speed racing engines McCoy Dooling etc turn over 10000 rpm can use dwells over 1200 draw excessive current however lower-rpm engines should set range 950 1100 ammeter should show battery current engine running about 1A amp less current dwell set too long models onboard battery pack wont last long using quick-box merely clamp favorite old sparker engine onto universal mount slide box behind clip three alligator-clip-equipped wires appropriate places Minus ground preferably right handy spot engine Plus point lead high-tension lead spark plug Its ready fire up drawing wiring dia gram parts list should enable anyone construct extremely handy device few tips using quick box Look circuit notice coil always connected batteries fear bit current will flow until transistors Base connection tickled Dealer Inquiry Invited 3405 Cleveland Ave SW Canton OH 44707 Ssnd$lforCutalog 84-6810 aRoUsH MFG 132 Model Aviation BUILDS QUICK3itukkrr r1FLIES GREAT Au Economical Clange ENGINE __________ 09 15 RADIO CHANNELS .-2 3 TOP WINGSPAN L WING AREA ..460 sqin FLYING WEIGHT_______ 38 oz WING L0ADINGll9 ozsisqf KIT FEATURES ALL 1ST QUALITY BALSA AND PLYWOOD MACHINE CUT RIBS AND HARDWOOD PARTS FORMED COWL AND WIRE PARTS APPLE MODEL PRODUCTS 7241 Kersten StCitrus Hts Ca 95621 TEL #916/722-7035 ONLY $4195 TOORDIN SEND EK se MO ADD 5250 niio coo $500 CA RES ADD 6Z TAX Super sport flier turnaround patternI Balsa & ply construction 70 span 927 sq area 7A -8A lbs139 75-12 co 20-ohm resistor limits current ross points 60-70 mA bat ries will last very long time wiring must least 16 gauge randed wire except lead ie transistor Base lead ignition ints current four amps flows rerywhere system except tickler circuit points cir ut can easily conduct 60 mA through 20-gauge wire So see very fl spark can generated also fly circuit models using vo Ni-Cd batteries place glow ug batteries quick box use riife-switch made brass shim stock plane sure connections ell-soldered resin-core solder never e acid-core solder electrical circuits cardinal error committed modelers r over 50 years ignition flying has iskimp wire size have poor ilder connections Youve got remem r dealing four amps 2/2 three volts herea mere 10 12 attsso theres certainly much mph available takes little bit sistance ignition circuit reduce ficiency performance hurry outstanding feature circuit primary circuit soldered closed rmanently no switch rcuit fail cause resistance uflie troubleshooting hints Check nition coil electrical continuity primary its secondary good coil ill show about 3500 4700 ohms sistance spark coil open roken wire etc will still sparkuntil e engine compression Since circuit Im using has no con unser little troublemaker no nger threat However RC use put 1000 10000 ohm resistor high asion lead spark plug end ill help suppress RF interference sistor must plug-end lead good Use least amount sistance possible can experiment ith turning RC receiver ud shorting ignition systems timer ad ground small screwdriver ud watching planes control surfaces ir glitches fly both Futaba Cannon radio ud have never need shielding uything model try keep ill ignition module forward vay radio equipment udes battery has found pick up RE interference using Fl Electronics CD electronic ignition stem plane Doc coil will function metal ar Always mount wood astic clamps etc Finally Doc Mathews discovered ur last time out clamp-type bat ry boxes used back dont work uy better now either batteries Lould held elastics youre ing blamed things Better Continued page 136 II I II I I I I I I I I I I I I 1 I I I I I I I August 1985 133 I THE RADIO CONTROL BUYERS GUIDE new 9th edition now local hobby shop contains thousands photos product descriptions radio control raft Cars s ems nes ware Accessories s os RCBG single largest source infor mation RIO modeling available Whether youre advanced R/Cer eager novice RCBG will master reference So before plunk down hard earned cash-Look Before Buy available locally may send $995 plus $175 shipping Radio Control Buyers Guide Dept 100 Clifton House Clifton VA 22024 sure indicate street address still solder battery tabs circuit stuff batteries inside Thats end Bills guest article Id like add few notes about him First man makes living designing installing remote-monitoring control ling equipment municipal water sys tems like employed Minneapolis Honeywell years claims got job because took along homemade Berkeley Aerotrol system impressed interviewer hired him spot Also Bill restoring collecting antique sparker engines has begun making piston rings could see process Dee B Mathews 8420 Nantucket Wichita KS 67212 Mind/Andersen Continued page 55 bureaucracy replied Well about buying own place asked would have go out bids congressman would want district MAGIC MAGNET BUILDERW Eldon J Lind Co 2912 Walker Lee Los Alamitos CA 90720 Impossible Im afraid flying site place available Well okay said its national interest Just red telephone Presi dents desk rang Oh God its World War Three thought President picked up phone spoke greeting stumbling Russian continued English Yes hes rightnow dontyou ask him yourself President said caller other end hot line telephone Its Premier Soviet Union said cupping hand over mouthpiece wants speak took telephone trembling hands deciding simultaneously let some else become club president next year greeted Premier inquired might service Comrade said Did know fly RC too No kidding remarked What flying just test-hopped Aeromaster made American kit Its covered British heat-shrink plastic has Japa nese radio Italian engine wood Ecuador wheels Malaysia French glue its built German tools sanded Norwegian sandpaper Im being criticized being soft interna tional capitalism biggest problem Kremlin really bad place too fly Too walls too much interference electronic surveillance no privacy What need place can escape pressures high office need place can reach out feel space time refresh tired brain drawing castor oil trails across deep blue sky Would club mind if. Gee Bee Y/Haffke Continued page 57 housing its 215-hp Lycoming engine bigger engine installed new cowl bumps rocker arms fitted Art Knapp Bob Hall have photo Hall Knapp standing next original apparently just after flown first time its new engine Later modifications 1933 craft included closing landing gear legs installing cover over ward cockpit forward windshield stowed under cover racing Ken has cover forward windshield puts needs did test flying cockpit covered windshield installed Ken left landing gear legs open Ken started Gee Bee January 1977 Work progressed slowly since could work during slow months business owns glass service company built several aircraft before tackling Model Y 136 Model Aviation LILJAZLL 13311 Beach Ave na Del Rey CA 2 821-6242 An Weal way build balsa construc ted model airplane wing% fuselage atabiilzers elevators rudders Build fast easy straight true Makes other methods obsolete CONTENTS 1 -16x48 STEEL PLATE 30- MAGNETS 60- MAGNETIC POLES 10-5 UPRIGHTS 10-1 x 10/32 BOLTS 10-10/32 NUTS useful tool wili last lifetime nothing wear out Magnetically holds balsa parts place gluing No damagec split weakened wood using pine