cchniqvc THE ACE XPO/MIXER long-awaited combined exponential mixing options board 11 G5 15 has released Ace RC mc Box 511 E Higginsville MO 64037 have built tested board plugs Silver Seven transmitter provides two chan nels XPO/LIN option linear channel adjustable trim authority ability mix two channels whether XPO except retract gear channel Interconnections shown customary arrange ments including V-tail elevons opposed flap elevator coupled ailerons rudder throttle tail-rotor mixing Helicopters kit easy build because printed circuits widely spaced caution would make warn very sure solder connections both sides board such connections provided problem traced back missing Well maybe thats entirely true also problem traced back fact forgotten ground input series following inputs frame skipped grounded channel 5 get rid spend bit time figuring out flapperons wouldnt work flap signal channel 6 being skipped board contains 41 terminals should considered making up control configura tion Twenty three numbered lettered Ace found helpful add designations pins bring control signals up board take away conditioned mixed signals encoder Control inputs labeled Cl through C7 skipping CS because retract channel doesnt come up Trim inputs labeled Ti through T3 outputs labeled Sl through S7 skipping S5 shown Figure 1 done suggest make up interconnection diagram like Figure 2 figuring Out arrangement want diagram will ensure nothing forgotten Check off connection make will notice flapperon setup contains 15 wires 30 soldered connections indicated solid lines arrow heads plus 2 Mainframe Jumpers Using diagram gave confidence making proper setup proved true Once board installed checked out flight testing might decide board should identified beingpart ofthe airplane installed plane flown Thus another airplane would lead buy another board would minimize time required change setups makes sense thats way intend use option puts us step closer concept universal transmitter can adapted needs particular model installing special program could have Helicop ter V-tail glider flapperon-equipped Pattern plane flown transmitter three option boards flight packs would have no special accessories such control reversers forward reverse servos control mixers oddsized control arms bellcranks etc because Cl Ti C2 T2 C3 KT3 C4 Ce 07 25 VDC A2ABALAl G A3 iJ82D HJ cil 12 cD Il[ 83 YGAIN B BAL B100 XGAIN Si 52 53 e VDC 5 VDC P Figure 1 Locations Interconnect points new Ace EXPO/MIXER board Some quite hard locate sketch although labeled PC Note George has shown sketch inverted way Ace would show order have inputs shown left might also note two points marked E P Thats OK because points same PC lands functions would reside transmitter could stock just type servo happy Having transmitter box learn minimizes potential pushing wrong control critical time mind logical extension RC system future Im opposed very complicated Top-of-the-Line transmitters see fered anticipate learning make proper use new functions will take some time addition will controls can knocked out place people handle transmitter casually impound areas Putting adjustments inside transmitter card cant get strikes worthwhile protection However look XPO/Mixer card will trend-setter Parts Detective Based mail recently would seem home-building electronic devices increase have receiving too letters ask locate parts circuits havent published Im flattered some folks believe know scarce parts can obtained must protest just much work locate Besides readers have outnumbered So let give outline places might investigate Assuming part still production first place contact manufacturers sales department Offer pay going price often will send part charge good-will gesture because Costs part worth open account bill Dont overdo path because will spoil everyone yourself included next resource manufacturers service department will charge going price plus handling because set up Most likely expensive way go has unquestioned advantage will provide top quality parts number need quick delivery Electronic parts usually fabricated batches moved out manufacturers inventory quickly possible Wholesalers jobbers provide intermediate warehouse function money keeps manufacturers moving newer grander items Wholesalers jobbers seldom will sell anything retail because would put direct competition customers would resented best should expect name address retailer could order item Next line OEMs Original Equip ment Manufacturers use part want products can reasonably expect will have service department will provide few items want price Recognize stock what expect need spares purpose supporting what have built 26 Model Aviation George M wu1 will reluctant part large numbers components because trying retailers jobbers wholesalers Still two should available would get names QEMs manufacturers sales department cases cant supply directly Eventually item want will gone shelves manufacturer wholesaler jobber OEM lost retailers maintain stocks Among Allied Radio division Tandy Corporation includes ubiquitous Radio Shack chain retail stores Allied has Radio Shack store can get Ask time will come above sources dry up happens go local magazines rack public library obtain copy Popular Electronics Modem Electron ics other magazine similar title will find back such magazines large number fine-print advertisements Look what want dont find what want listed its worth writing outfit like Poly-Paks because buy up left over supplies batches cheap move Out same way fast can turnover rapid no way can keep ads up-to-date Write stating needs dont have exactly number want usually know what close enough work will send difference will often different pin arrangement As long send application sheet identifies pins can build up circuit want difficulty might come have modify printed-circuit board slightly Aside Radio Shack Allied Poly Paks havent given real names order track down manufacturer cohorts need name Allied catalog can usually provide go large library technical library reasonably large company has something electronics ask examine book called IC Mixed Output 1 rect Output Log Amp B Enable Log Amp Output Mixer X common otation Log Amp 8 Output Mixer V Input Mixed Output 2 Y direct Output Al Enable L AU Log Amp B B 3 G H 1 - K Bidirectional mixing Log Amp input Log Amp Trim input LLog Amp B Input Amp B N Linear C input 0 LinearCT P Linear C Output ClAileron_____________________ Ti Aileron T. C2Elevator Control T2Elevator Trim C3 Ta C4 C6 C7 Rudder Control er Trim ttle & Trim Control Retract Switch C Reference - Si S2 S3 54 S6 S7 0 VDC 5 VDC E Right Flapperon s 2 Elevator C Rudderm Throttle Flapperon Retract 2 0 C Reference Working Volts interconnection diagram shows George sets up new Ace RC exponential/mixer board get fiapperons exponential control ailerons rudder linear control elevators throttle flaps normal operations pushbutton George added histranamitter uses control lust about auxiliary function wants tolike glider tug release instance retract switch also mixes aileron flap controls Refer August October1980 January February 1981 issues Georges previous discussions tests Sliver Seven Master published annually quarterly updates attempts keep up flood new products coming manufacturers contains data sheets item importantly purposes up-to-date listing manufacturers distributors know make use information Happy hunting Waily Kranz Bethpage NY shows off scratch-built Great Lakes 2T-1 E 80-in-span model /4-scale weighs2l lb Quadra swinging 18-6 propeller powers Finish isorange black white pinstripes per Smithsonian 3-view drawl ng Sig dope over Super Coverite Exhaust via scale pipes Futaba FP-6FN radio S-22 servos functions except Litco Magnum servo ailerons Dual pushrods used rudder elevator Plans will available $25 Norm Rosenstock 94 Cedar Drive Plainview NY 11803 Norms Waco HKS-7 plans also available kit no longer scheduled cant end discussion parts-hunting mentioning Ace RC Inc address above Royal Electronics 3535 South Irving St Englewood CO 80110 degree Heath Co Benton Harbor MI 49022 can will provide some specialized electronic components common hobby Only Ace RC advertises magazine think proper suggest try Ace first know personal experience will fill orders fast Since puts us back subject Ace RC Inc should mention have received some letters asking will build up Silver Seven kit someone answer NO Im writer manufacturer However want give up pleasure satisfac tion custom-building something want Ive got name Joseph Kinsey 1K RC Supplies 7712 Althea Ave Harrisburg PA 17112 showed version Silver Seven met Weak Signals show Toledo OH includes plug-in frequency mod ules have seen before Joe likes building being retired has time Contact him directly please Id guess Ace RC service center contains least person would build up kit fee costs 18t stamp ask Authorized Ace Service Centers Hillcrest Hobby Craft 3921 Fifth Ave San Diego CA 92103 Continued page 110 August1981 27 CANTON MODEL PRODUCTS Presents Dip Stick FAST QUICK EASY TO FINISH DS 40 55 SPAN 560 SQ IN WING LOADING 165-20 OZ 2945 ENGINE 1 43 LENGTH 3 OR 4 CHANNEL PRICE 4995 ADD 4 SHIPPING CHARGE DS 60 64 SPAN 672 SQ IN WING LOADING 20-22 OZ 46-60 ENGINE 48 LENGTH 3 OR 4 CHANNEL PRICE 5995 EXTREMELYADD 6 SHIPPING RUGGED TRAINER CHARGE WITH SYMMETRICAL AIRFOIL FOR AEROBATIC FLYING HIGHLY PREFABRICATED KIT INCLUDES PRE SHEETED BALSA FOAM WINGS PRE-BUILT JIG ASSEMBLED WOOD FUSELAGE PRE-SHAPED BALSA TAIL ASSEMBLY PREFORMED LANDING GEAR TAIL WHEEL AND AILERON WIRES INSTRUCTION SHEET WITH FULLY ILLUSTRATED ASSEMBLY DRAWINGS TO ORDER SEND BANK CHECK OR MONEY ORDER TO CANTON MODEL PRODUCTS PO BOX 6063 CANTON OHIO 44706 OR CALL 216 454-1039 FOR IMMEDIATE COD SHIPMENT After resin has hardened sand lightly fine sandpaper will have no trouble MonoKote adhering Miss Los Angeles lettering cowling can done Pactra Formula U Polyurethane paint Thoroughly clean MonoKote surface thinner use fine brush make mistake can easily wiped off little thinner Practice script design before begin ning polyurethane paint sticks surprisingly well MonoKote Engine mounting word encouragement inverted engines difficult start adjust During club racing always managed have 05 running well within 90-sec time limit easiest way start inverted engine cradle will hold entire model upside down wheels up simple wooden cradle can designed built about half hour Remember make end cradle little higher will keep nose model slightly higher tailand prevent gravity flooding carburetor fuel can also use Robart Super Stand As model make sure batteries leads plug good shape Speaking batteries 1 2-volt Nicad cell mounted fuselage wired through switch glow plug will help idle Install fuel tank 4-oz Sullivan RST fits nicely lower forward fuselage tubing protruding through hole firewalL Put silicone sealer around tubing firewall opening seal against oil leakage back fuselage battery pack goes top fuel tank Receiver servos mounted over wing would suggest securing receiver up against top fuselage rubberbands keep shifting Epoxy several small music wire hooks structure attach rubberbands Remember position radio equipment work toward proper center gravity CG location shown plans Landing gear wheel pants Bend two main gear legs out -in music wire Wrap joints copper wire solder 032 thick brass sheet landing gear mounting tabs should positioned yet soldered gear Screw both front rear struts fuselage mount streamlined tubing make final bend join two pieces After legs joined solder tabs place Small rubber gaskets made inner tube can inserted between brass mounting tabs wing act oil seals prevent abrasion wing wheel pants laminated h balsa sheet center 3/32 plywood sides sure leave least -in clearance between wheel pant inside wheel pant another good place use finishing resin protect dirt water fuel have shown favorite method mounting wheel pants plans single-point attachment via 4-40 bolt blind nut behind axle will allow front pant pivot upward avoid damage event noseover hard landing Flying sure CG shown plans will give nice groovy easyflying model Make CG adjustments caution small increments Im sure now ye heard warnings about trying fly tail-heavy modelits disaster Start small control surface throws have used following ailerons A-in up down elevator -in up down rudder %-in left right Takeoffs fast smooth will need worry about runway length prepared hold right rudder until model off ground begins pick up airspeed Once air model smooth steady have kept model recommended 3 3 lb total weight landings can slow easy Throttle back beginning downwind leg aerodynamically-clean B-2 will glide quite distance will land little speed deBolt Champ no stalling tendencies Although may little too quick larger hotter engine newcomer aileron flying anyone comfortable aileron ship should have no problem B-2 Try sleek little Thompson Trophy racer Its real pleasure fly Radio Technique/Myers Continued page 27 LR Taylor & Co 208314 Roscoe Blvd Canoga Park CA 91306 Authorized RIC Service 941 North Main St Orange CA 92667 GSP Products Sacramento 2238 Rogue River Dr Sacramento CA 95826 Electronic Model Systems West Mark Schwing 6175 E Palo Alto Dr Anahem CA 92807 Pauls R/C Service 8823 Ruggles Omaha NE 68134 Digital Control Repair 10044 Goliad El Paso TX 79924 R/C Specialties 2026 Snowmass Lane Garland TX 75042 David Bowen 1607 Jane Pasadena TX 77502 John Deneke 526 Doremus Ave Glen Rock NJ 07452 product review product review product review thing photo above strongly resembles upper half obsolete soda can Thats just what Would believe has book writ ten about see throw little can properly flies rather remarkable manner Put some English throw get aeroba tics details aforementioned book Toobee Players Handbook Dan Poynter whole thing some what reminiscent Frisbee also pretty unlikely think about book retails $595 including shipping above address Toobees themselves available $295 per pack two Toobee Inc Box 7181 -E Berkeley CA 94707 product review product review product review 110 Model Aviation Toobee Toob nund book Para Publishing ox4232 Santa Barbara CA 93103 Anything RiC W3029 Hoffman Spokane WA 99205 W L Langford 510 Girard Ave Dothan AL 36303 G & G Electronics 497 Central Ave See konk MA 02771 Fred Morgan Box 8516 Cave Creek Stage 28238 N 44th St Phoenix AZ 85020 Ace Service Center Box 511 203 W 19th Higginsville MO 64037 Dundas Hobby Supply 16 Sleepy Hollow Dundas Ont Canada L9H 1H3 Donald J Wadella Dons Radio Control Systems 11392 74th Ave Delta BC Can ada V4C lEl R K Specialties 406 Prospect Dr SW Medicine Hat Alberta Canada TiA 4C1 Mastercraft 4 Linden Rd Chiselhurst Ext East London 5201 South Africa Keep letters flowing dont ask find parts please George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Big Bangers/Beckman Continued page 29 points never open never close will never spark engine will never run points can set engine runs well should example points too close will stay closed longer should effectively retarding spark engine will lose power especially high speed Points usually set about 0015 fully open magneto air gap should small possible since closer magnets pole pieces go energy will developed spark quality crank shaft bearings size flywheel determine gap needed ensure magnets actually touch go 0010 typical gap chainsaw engines Since gaps mechanical wear vibration can change over period time Periodic adjustment required keep engine running peak performance addition its good idea check things new engine becasue never know what may have happened engine between time left factory time got Listed below additional notes subjective data current set test engines Mag-Aero beautiful engine both fas cinating frustrating Like its big brother Kioritz 24 cu engine extremely well made delight operate first glance seems ideally suited aircraft use turns out have some detracting characteristics large cup-shaped rear housing contains flywheel magneto points As result front engine must less cluttered Big Bangers should make easier cowl Unfortunately position spark plug dictates very flat-faced cowl horizontal protrusion carburetor compli cates mounting in-line cowls Radial cowls would easier extra length engine would require false firewall scale position forward actual firewall engine mounted Despite awkward-seeming layout engine its quality makes outstanding big bird powerplant would particularly useful some Quarter Scale designs originally powered big glow engines Continued page 114 August1981 111 I-NDIAN CITY RADiO CONTROL CLUB mSENTS GREATER MICHIGAN MODELERS SHOW & EXPO ill iS WOATS CAR$ MANLtFACT*J#EES STATIC DI$PLAYSSWAP SHOP 23A 1981 Wt4Rht MI Aftillery Anuaory1 Oak Park MichiR
Edition: Model Aviation - 1981/08
Page Numbers: 26, 27, 110, 111
cchniqvc THE ACE XPO/MIXER long-awaited combined exponential mixing options board 11 G5 15 has released Ace RC mc Box 511 E Higginsville MO 64037 have built tested board plugs Silver Seven transmitter provides two chan nels XPO/LIN option linear channel adjustable trim authority ability mix two channels whether XPO except retract gear channel Interconnections shown customary arrange ments including V-tail elevons opposed flap elevator coupled ailerons rudder throttle tail-rotor mixing Helicopters kit easy build because printed circuits widely spaced caution would make warn very sure solder connections both sides board such connections provided problem traced back missing Well maybe thats entirely true also problem traced back fact forgotten ground input series following inputs frame skipped grounded channel 5 get rid spend bit time figuring out flapperons wouldnt work flap signal channel 6 being skipped board contains 41 terminals should considered making up control configura tion Twenty three numbered lettered Ace found helpful add designations pins bring control signals up board take away conditioned mixed signals encoder Control inputs labeled Cl through C7 skipping CS because retract channel doesnt come up Trim inputs labeled Ti through T3 outputs labeled Sl through S7 skipping S5 shown Figure 1 done suggest make up interconnection diagram like Figure 2 figuring Out arrangement want diagram will ensure nothing forgotten Check off connection make will notice flapperon setup contains 15 wires 30 soldered connections indicated solid lines arrow heads plus 2 Mainframe Jumpers Using diagram gave confidence making proper setup proved true Once board installed checked out flight testing might decide board should identified beingpart ofthe airplane installed plane flown Thus another airplane would lead buy another board would minimize time required change setups makes sense thats way intend use option puts us step closer concept universal transmitter can adapted needs particular model installing special program could have Helicop ter V-tail glider flapperon-equipped Pattern plane flown transmitter three option boards flight packs would have no special accessories such control reversers forward reverse servos control mixers oddsized control arms bellcranks etc because Cl Ti C2 T2 C3 KT3 C4 Ce 07 25 VDC A2ABALAl G A3 iJ82D HJ cil 12 cD Il[ 83 YGAIN B BAL B100 XGAIN Si 52 53 e VDC 5 VDC P Figure 1 Locations Interconnect points new Ace EXPO/MIXER board Some quite hard locate sketch although labeled PC Note George has shown sketch inverted way Ace would show order have inputs shown left might also note two points marked E P Thats OK because points same PC lands functions would reside transmitter could stock just type servo happy Having transmitter box learn minimizes potential pushing wrong control critical time mind logical extension RC system future Im opposed very complicated Top-of-the-Line transmitters see fered anticipate learning make proper use new functions will take some time addition will controls can knocked out place people handle transmitter casually impound areas Putting adjustments inside transmitter card cant get strikes worthwhile protection However look XPO/Mixer card will trend-setter Parts Detective Based mail recently would seem home-building electronic devices increase have receiving too letters ask locate parts circuits havent published Im flattered some folks believe know scarce parts can obtained must protest just much work locate Besides readers have outnumbered So let give outline places might investigate Assuming part still production first place contact manufacturers sales department Offer pay going price often will send part charge good-will gesture because Costs part worth open account bill Dont overdo path because will spoil everyone yourself included next resource manufacturers service department will charge going price plus handling because set up Most likely expensive way go has unquestioned advantage will provide top quality parts number need quick delivery Electronic parts usually fabricated batches moved out manufacturers inventory quickly possible Wholesalers jobbers provide intermediate warehouse function money keeps manufacturers moving newer grander items Wholesalers jobbers seldom will sell anything retail because would put direct competition customers would resented best should expect name address retailer could order item Next line OEMs Original Equip ment Manufacturers use part want products can reasonably expect will have service department will provide few items want price Recognize stock what expect need spares purpose supporting what have built 26 Model Aviation George M wu1 will reluctant part large numbers components because trying retailers jobbers wholesalers Still two should available would get names QEMs manufacturers sales department cases cant supply directly Eventually item want will gone shelves manufacturer wholesaler jobber OEM lost retailers maintain stocks Among Allied Radio division Tandy Corporation includes ubiquitous Radio Shack chain retail stores Allied has Radio Shack store can get Ask time will come above sources dry up happens go local magazines rack public library obtain copy Popular Electronics Modem Electron ics other magazine similar title will find back such magazines large number fine-print advertisements Look what want dont find what want listed its worth writing outfit like Poly-Paks because buy up left over supplies batches cheap move Out same way fast can turnover rapid no way can keep ads up-to-date Write stating needs dont have exactly number want usually know what close enough work will send difference will often different pin arrangement As long send application sheet identifies pins can build up circuit want difficulty might come have modify printed-circuit board slightly Aside Radio Shack Allied Poly Paks havent given real names order track down manufacturer cohorts need name Allied catalog can usually provide go large library technical library reasonably large company has something electronics ask examine book called IC Mixed Output 1 rect Output Log Amp B Enable Log Amp Output Mixer X common otation Log Amp 8 Output Mixer V Input Mixed Output 2 Y direct Output Al Enable L AU Log Amp B B 3 G H 1 - K Bidirectional mixing Log Amp input Log Amp Trim input LLog Amp B Input Amp B N Linear C input 0 LinearCT P Linear C Output ClAileron_____________________ Ti Aileron T. C2Elevator Control T2Elevator Trim C3 Ta C4 C6 C7 Rudder Control er Trim ttle & Trim Control Retract Switch C Reference - Si S2 S3 54 S6 S7 0 VDC 5 VDC E Right Flapperon s 2 Elevator C Rudderm Throttle Flapperon Retract 2 0 C Reference Working Volts interconnection diagram shows George sets up new Ace RC exponential/mixer board get fiapperons exponential control ailerons rudder linear control elevators throttle flaps normal operations pushbutton George added histranamitter uses control lust about auxiliary function wants tolike glider tug release instance retract switch also mixes aileron flap controls Refer August October1980 January February 1981 issues Georges previous discussions tests Sliver Seven Master published annually quarterly updates attempts keep up flood new products coming manufacturers contains data sheets item importantly purposes up-to-date listing manufacturers distributors know make use information Happy hunting Waily Kranz Bethpage NY shows off scratch-built Great Lakes 2T-1 E 80-in-span model /4-scale weighs2l lb Quadra swinging 18-6 propeller powers Finish isorange black white pinstripes per Smithsonian 3-view drawl ng Sig dope over Super Coverite Exhaust via scale pipes Futaba FP-6FN radio S-22 servos functions except Litco Magnum servo ailerons Dual pushrods used rudder elevator Plans will available $25 Norm Rosenstock 94 Cedar Drive Plainview NY 11803 Norms Waco HKS-7 plans also available kit no longer scheduled cant end discussion parts-hunting mentioning Ace RC Inc address above Royal Electronics 3535 South Irving St Englewood CO 80110 degree Heath Co Benton Harbor MI 49022 can will provide some specialized electronic components common hobby Only Ace RC advertises magazine think proper suggest try Ace first know personal experience will fill orders fast Since puts us back subject Ace RC Inc should mention have received some letters asking will build up Silver Seven kit someone answer NO Im writer manufacturer However want give up pleasure satisfac tion custom-building something want Ive got name Joseph Kinsey 1K RC Supplies 7712 Althea Ave Harrisburg PA 17112 showed version Silver Seven met Weak Signals show Toledo OH includes plug-in frequency mod ules have seen before Joe likes building being retired has time Contact him directly please Id guess Ace RC service center contains least person would build up kit fee costs 18t stamp ask Authorized Ace Service Centers Hillcrest Hobby Craft 3921 Fifth Ave San Diego CA 92103 Continued page 110 August1981 27 CANTON MODEL PRODUCTS Presents Dip Stick FAST QUICK EASY TO FINISH DS 40 55 SPAN 560 SQ IN WING LOADING 165-20 OZ 2945 ENGINE 1 43 LENGTH 3 OR 4 CHANNEL PRICE 4995 ADD 4 SHIPPING CHARGE DS 60 64 SPAN 672 SQ IN WING LOADING 20-22 OZ 46-60 ENGINE 48 LENGTH 3 OR 4 CHANNEL PRICE 5995 EXTREMELYADD 6 SHIPPING RUGGED TRAINER CHARGE WITH SYMMETRICAL AIRFOIL FOR AEROBATIC FLYING HIGHLY PREFABRICATED KIT INCLUDES PRE SHEETED BALSA FOAM WINGS PRE-BUILT JIG ASSEMBLED WOOD FUSELAGE PRE-SHAPED BALSA TAIL ASSEMBLY PREFORMED LANDING GEAR TAIL WHEEL AND AILERON WIRES INSTRUCTION SHEET WITH FULLY ILLUSTRATED ASSEMBLY DRAWINGS TO ORDER SEND BANK CHECK OR MONEY ORDER TO CANTON MODEL PRODUCTS PO BOX 6063 CANTON OHIO 44706 OR CALL 216 454-1039 FOR IMMEDIATE COD SHIPMENT After resin has hardened sand lightly fine sandpaper will have no trouble MonoKote adhering Miss Los Angeles lettering cowling can done Pactra Formula U Polyurethane paint Thoroughly clean MonoKote surface thinner use fine brush make mistake can easily wiped off little thinner Practice script design before begin ning polyurethane paint sticks surprisingly well MonoKote Engine mounting word encouragement inverted engines difficult start adjust During club racing always managed have 05 running well within 90-sec time limit easiest way start inverted engine cradle will hold entire model upside down wheels up simple wooden cradle can designed built about half hour Remember make end cradle little higher will keep nose model slightly higher tailand prevent gravity flooding carburetor fuel can also use Robart Super Stand As model make sure batteries leads plug good shape Speaking batteries 1 2-volt Nicad cell mounted fuselage wired through switch glow plug will help idle Install fuel tank 4-oz Sullivan RST fits nicely lower forward fuselage tubing protruding through hole firewalL Put silicone sealer around tubing firewall opening seal against oil leakage back fuselage battery pack goes top fuel tank Receiver servos mounted over wing would suggest securing receiver up against top fuselage rubberbands keep shifting Epoxy several small music wire hooks structure attach rubberbands Remember position radio equipment work toward proper center gravity CG location shown plans Landing gear wheel pants Bend two main gear legs out -in music wire Wrap joints copper wire solder 032 thick brass sheet landing gear mounting tabs should positioned yet soldered gear Screw both front rear struts fuselage mount streamlined tubing make final bend join two pieces After legs joined solder tabs place Small rubber gaskets made inner tube can inserted between brass mounting tabs wing act oil seals prevent abrasion wing wheel pants laminated h balsa sheet center 3/32 plywood sides sure leave least -in clearance between wheel pant inside wheel pant another good place use finishing resin protect dirt water fuel have shown favorite method mounting wheel pants plans single-point attachment via 4-40 bolt blind nut behind axle will allow front pant pivot upward avoid damage event noseover hard landing Flying sure CG shown plans will give nice groovy easyflying model Make CG adjustments caution small increments Im sure now ye heard warnings about trying fly tail-heavy modelits disaster Start small control surface throws have used following ailerons A-in up down elevator -in up down rudder %-in left right Takeoffs fast smooth will need worry about runway length prepared hold right rudder until model off ground begins pick up airspeed Once air model smooth steady have kept model recommended 3 3 lb total weight landings can slow easy Throttle back beginning downwind leg aerodynamically-clean B-2 will glide quite distance will land little speed deBolt Champ no stalling tendencies Although may little too quick larger hotter engine newcomer aileron flying anyone comfortable aileron ship should have no problem B-2 Try sleek little Thompson Trophy racer Its real pleasure fly Radio Technique/Myers Continued page 27 LR Taylor & Co 208314 Roscoe Blvd Canoga Park CA 91306 Authorized RIC Service 941 North Main St Orange CA 92667 GSP Products Sacramento 2238 Rogue River Dr Sacramento CA 95826 Electronic Model Systems West Mark Schwing 6175 E Palo Alto Dr Anahem CA 92807 Pauls R/C Service 8823 Ruggles Omaha NE 68134 Digital Control Repair 10044 Goliad El Paso TX 79924 R/C Specialties 2026 Snowmass Lane Garland TX 75042 David Bowen 1607 Jane Pasadena TX 77502 John Deneke 526 Doremus Ave Glen Rock NJ 07452 product review product review product review thing photo above strongly resembles upper half obsolete soda can Thats just what Would believe has book writ ten about see throw little can properly flies rather remarkable manner Put some English throw get aeroba tics details aforementioned book Toobee Players Handbook Dan Poynter whole thing some what reminiscent Frisbee also pretty unlikely think about book retails $595 including shipping above address Toobees themselves available $295 per pack two Toobee Inc Box 7181 -E Berkeley CA 94707 product review product review product review 110 Model Aviation Toobee Toob nund book Para Publishing ox4232 Santa Barbara CA 93103 Anything RiC W3029 Hoffman Spokane WA 99205 W L Langford 510 Girard Ave Dothan AL 36303 G & G Electronics 497 Central Ave See konk MA 02771 Fred Morgan Box 8516 Cave Creek Stage 28238 N 44th St Phoenix AZ 85020 Ace Service Center Box 511 203 W 19th Higginsville MO 64037 Dundas Hobby Supply 16 Sleepy Hollow Dundas Ont Canada L9H 1H3 Donald J Wadella Dons Radio Control Systems 11392 74th Ave Delta BC Can ada V4C lEl R K Specialties 406 Prospect Dr SW Medicine Hat Alberta Canada TiA 4C1 Mastercraft 4 Linden Rd Chiselhurst Ext East London 5201 South Africa Keep letters flowing dont ask find parts please George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Big Bangers/Beckman Continued page 29 points never open never close will never spark engine will never run points can set engine runs well should example points too close will stay closed longer should effectively retarding spark engine will lose power especially high speed Points usually set about 0015 fully open magneto air gap should small possible since closer magnets pole pieces go energy will developed spark quality crank shaft bearings size flywheel determine gap needed ensure magnets actually touch go 0010 typical gap chainsaw engines Since gaps mechanical wear vibration can change over period time Periodic adjustment required keep engine running peak performance addition its good idea check things new engine becasue never know what may have happened engine between time left factory time got Listed below additional notes subjective data current set test engines Mag-Aero beautiful engine both fas cinating frustrating Like its big brother Kioritz 24 cu engine extremely well made delight operate first glance seems ideally suited aircraft use turns out have some detracting characteristics large cup-shaped rear housing contains flywheel magneto points As result front engine must less cluttered Big Bangers should make easier cowl Unfortunately position spark plug dictates very flat-faced cowl horizontal protrusion carburetor compli cates mounting in-line cowls Radial cowls would easier extra length engine would require false firewall scale position forward actual firewall engine mounted Despite awkward-seeming layout engine its quality makes outstanding big bird powerplant would particularly useful some Quarter Scale designs originally powered big glow engines Continued page 114 August1981 111 I-NDIAN CITY RADiO CONTROL CLUB mSENTS GREATER MICHIGAN MODELERS SHOW & EXPO ill iS WOATS CAR$ MANLtFACT*J#EES STATIC DI$PLAYSSWAP SHOP 23A 1981 Wt4Rht MI Aftillery Anuaory1 Oak Park MichiR
Edition: Model Aviation - 1981/08
Page Numbers: 26, 27, 110, 111
cchniqvc THE ACE XPO/MIXER long-awaited combined exponential mixing options board 11 G5 15 has released Ace RC mc Box 511 E Higginsville MO 64037 have built tested board plugs Silver Seven transmitter provides two chan nels XPO/LIN option linear channel adjustable trim authority ability mix two channels whether XPO except retract gear channel Interconnections shown customary arrange ments including V-tail elevons opposed flap elevator coupled ailerons rudder throttle tail-rotor mixing Helicopters kit easy build because printed circuits widely spaced caution would make warn very sure solder connections both sides board such connections provided problem traced back missing Well maybe thats entirely true also problem traced back fact forgotten ground input series following inputs frame skipped grounded channel 5 get rid spend bit time figuring out flapperons wouldnt work flap signal channel 6 being skipped board contains 41 terminals should considered making up control configura tion Twenty three numbered lettered Ace found helpful add designations pins bring control signals up board take away conditioned mixed signals encoder Control inputs labeled Cl through C7 skipping CS because retract channel doesnt come up Trim inputs labeled Ti through T3 outputs labeled Sl through S7 skipping S5 shown Figure 1 done suggest make up interconnection diagram like Figure 2 figuring Out arrangement want diagram will ensure nothing forgotten Check off connection make will notice flapperon setup contains 15 wires 30 soldered connections indicated solid lines arrow heads plus 2 Mainframe Jumpers Using diagram gave confidence making proper setup proved true Once board installed checked out flight testing might decide board should identified beingpart ofthe airplane installed plane flown Thus another airplane would lead buy another board would minimize time required change setups makes sense thats way intend use option puts us step closer concept universal transmitter can adapted needs particular model installing special program could have Helicop ter V-tail glider flapperon-equipped Pattern plane flown transmitter three option boards flight packs would have no special accessories such control reversers forward reverse servos control mixers oddsized control arms bellcranks etc because Cl Ti C2 T2 C3 KT3 C4 Ce 07 25 VDC A2ABALAl G A3 iJ82D HJ cil 12 cD Il[ 83 YGAIN B BAL B100 XGAIN Si 52 53 e VDC 5 VDC P Figure 1 Locations Interconnect points new Ace EXPO/MIXER board Some quite hard locate sketch although labeled PC Note George has shown sketch inverted way Ace would show order have inputs shown left might also note two points marked E P Thats OK because points same PC lands functions would reside transmitter could stock just type servo happy Having transmitter box learn minimizes potential pushing wrong control critical time mind logical extension RC system future Im opposed very complicated Top-of-the-Line transmitters see fered anticipate learning make proper use new functions will take some time addition will controls can knocked out place people handle transmitter casually impound areas Putting adjustments inside transmitter card cant get strikes worthwhile protection However look XPO/Mixer card will trend-setter Parts Detective Based mail recently would seem home-building electronic devices increase have receiving too letters ask locate parts circuits havent published Im flattered some folks believe know scarce parts can obtained must protest just much work locate Besides readers have outnumbered So let give outline places might investigate Assuming part still production first place contact manufacturers sales department Offer pay going price often will send part charge good-will gesture because Costs part worth open account bill Dont overdo path because will spoil everyone yourself included next resource manufacturers service department will charge going price plus handling because set up Most likely expensive way go has unquestioned advantage will provide top quality parts number need quick delivery Electronic parts usually fabricated batches moved out manufacturers inventory quickly possible Wholesalers jobbers provide intermediate warehouse function money keeps manufacturers moving newer grander items Wholesalers jobbers seldom will sell anything retail because would put direct competition customers would resented best should expect name address retailer could order item Next line OEMs Original Equip ment Manufacturers use part want products can reasonably expect will have service department will provide few items want price Recognize stock what expect need spares purpose supporting what have built 26 Model Aviation George M wu1 will reluctant part large numbers components because trying retailers jobbers wholesalers Still two should available would get names QEMs manufacturers sales department cases cant supply directly Eventually item want will gone shelves manufacturer wholesaler jobber OEM lost retailers maintain stocks Among Allied Radio division Tandy Corporation includes ubiquitous Radio Shack chain retail stores Allied has Radio Shack store can get Ask time will come above sources dry up happens go local magazines rack public library obtain copy Popular Electronics Modem Electron ics other magazine similar title will find back such magazines large number fine-print advertisements Look what want dont find what want listed its worth writing outfit like Poly-Paks because buy up left over supplies batches cheap move Out same way fast can turnover rapid no way can keep ads up-to-date Write stating needs dont have exactly number want usually know what close enough work will send difference will often different pin arrangement As long send application sheet identifies pins can build up circuit want difficulty might come have modify printed-circuit board slightly Aside Radio Shack Allied Poly Paks havent given real names order track down manufacturer cohorts need name Allied catalog can usually provide go large library technical library reasonably large company has something electronics ask examine book called IC Mixed Output 1 rect Output Log Amp B Enable Log Amp Output Mixer X common otation Log Amp 8 Output Mixer V Input Mixed Output 2 Y direct Output Al Enable L AU Log Amp B B 3 G H 1 - K Bidirectional mixing Log Amp input Log Amp Trim input LLog Amp B Input Amp B N Linear C input 0 LinearCT P Linear C Output ClAileron_____________________ Ti Aileron T. C2Elevator Control T2Elevator Trim C3 Ta C4 C6 C7 Rudder Control er Trim ttle & Trim Control Retract Switch C Reference - Si S2 S3 54 S6 S7 0 VDC 5 VDC E Right Flapperon s 2 Elevator C Rudderm Throttle Flapperon Retract 2 0 C Reference Working Volts interconnection diagram shows George sets up new Ace RC exponential/mixer board get fiapperons exponential control ailerons rudder linear control elevators throttle flaps normal operations pushbutton George added histranamitter uses control lust about auxiliary function wants tolike glider tug release instance retract switch also mixes aileron flap controls Refer August October1980 January February 1981 issues Georges previous discussions tests Sliver Seven Master published annually quarterly updates attempts keep up flood new products coming manufacturers contains data sheets item importantly purposes up-to-date listing manufacturers distributors know make use information Happy hunting Waily Kranz Bethpage NY shows off scratch-built Great Lakes 2T-1 E 80-in-span model /4-scale weighs2l lb Quadra swinging 18-6 propeller powers Finish isorange black white pinstripes per Smithsonian 3-view drawl ng Sig dope over Super Coverite Exhaust via scale pipes Futaba FP-6FN radio S-22 servos functions except Litco Magnum servo ailerons Dual pushrods used rudder elevator Plans will available $25 Norm Rosenstock 94 Cedar Drive Plainview NY 11803 Norms Waco HKS-7 plans also available kit no longer scheduled cant end discussion parts-hunting mentioning Ace RC Inc address above Royal Electronics 3535 South Irving St Englewood CO 80110 degree Heath Co Benton Harbor MI 49022 can will provide some specialized electronic components common hobby Only Ace RC advertises magazine think proper suggest try Ace first know personal experience will fill orders fast Since puts us back subject Ace RC Inc should mention have received some letters asking will build up Silver Seven kit someone answer NO Im writer manufacturer However want give up pleasure satisfac tion custom-building something want Ive got name Joseph Kinsey 1K RC Supplies 7712 Althea Ave Harrisburg PA 17112 showed version Silver Seven met Weak Signals show Toledo OH includes plug-in frequency mod ules have seen before Joe likes building being retired has time Contact him directly please Id guess Ace RC service center contains least person would build up kit fee costs 18t stamp ask Authorized Ace Service Centers Hillcrest Hobby Craft 3921 Fifth Ave San Diego CA 92103 Continued page 110 August1981 27 CANTON MODEL PRODUCTS Presents Dip Stick FAST QUICK EASY TO FINISH DS 40 55 SPAN 560 SQ IN WING LOADING 165-20 OZ 2945 ENGINE 1 43 LENGTH 3 OR 4 CHANNEL PRICE 4995 ADD 4 SHIPPING CHARGE DS 60 64 SPAN 672 SQ IN WING LOADING 20-22 OZ 46-60 ENGINE 48 LENGTH 3 OR 4 CHANNEL PRICE 5995 EXTREMELYADD 6 SHIPPING RUGGED TRAINER CHARGE WITH SYMMETRICAL AIRFOIL FOR AEROBATIC FLYING HIGHLY PREFABRICATED KIT INCLUDES PRE SHEETED BALSA FOAM WINGS PRE-BUILT JIG ASSEMBLED WOOD FUSELAGE PRE-SHAPED BALSA TAIL ASSEMBLY PREFORMED LANDING GEAR TAIL WHEEL AND AILERON WIRES INSTRUCTION SHEET WITH FULLY ILLUSTRATED ASSEMBLY DRAWINGS TO ORDER SEND BANK CHECK OR MONEY ORDER TO CANTON MODEL PRODUCTS PO BOX 6063 CANTON OHIO 44706 OR CALL 216 454-1039 FOR IMMEDIATE COD SHIPMENT After resin has hardened sand lightly fine sandpaper will have no trouble MonoKote adhering Miss Los Angeles lettering cowling can done Pactra Formula U Polyurethane paint Thoroughly clean MonoKote surface thinner use fine brush make mistake can easily wiped off little thinner Practice script design before begin ning polyurethane paint sticks surprisingly well MonoKote Engine mounting word encouragement inverted engines difficult start adjust During club racing always managed have 05 running well within 90-sec time limit easiest way start inverted engine cradle will hold entire model upside down wheels up simple wooden cradle can designed built about half hour Remember make end cradle little higher will keep nose model slightly higher tailand prevent gravity flooding carburetor fuel can also use Robart Super Stand As model make sure batteries leads plug good shape Speaking batteries 1 2-volt Nicad cell mounted fuselage wired through switch glow plug will help idle Install fuel tank 4-oz Sullivan RST fits nicely lower forward fuselage tubing protruding through hole firewalL Put silicone sealer around tubing firewall opening seal against oil leakage back fuselage battery pack goes top fuel tank Receiver servos mounted over wing would suggest securing receiver up against top fuselage rubberbands keep shifting Epoxy several small music wire hooks structure attach rubberbands Remember position radio equipment work toward proper center gravity CG location shown plans Landing gear wheel pants Bend two main gear legs out -in music wire Wrap joints copper wire solder 032 thick brass sheet landing gear mounting tabs should positioned yet soldered gear Screw both front rear struts fuselage mount streamlined tubing make final bend join two pieces After legs joined solder tabs place Small rubber gaskets made inner tube can inserted between brass mounting tabs wing act oil seals prevent abrasion wing wheel pants laminated h balsa sheet center 3/32 plywood sides sure leave least -in clearance between wheel pant inside wheel pant another good place use finishing resin protect dirt water fuel have shown favorite method mounting wheel pants plans single-point attachment via 4-40 bolt blind nut behind axle will allow front pant pivot upward avoid damage event noseover hard landing Flying sure CG shown plans will give nice groovy easyflying model Make CG adjustments caution small increments Im sure now ye heard warnings about trying fly tail-heavy modelits disaster Start small control surface throws have used following ailerons A-in up down elevator -in up down rudder %-in left right Takeoffs fast smooth will need worry about runway length prepared hold right rudder until model off ground begins pick up airspeed Once air model smooth steady have kept model recommended 3 3 lb total weight landings can slow easy Throttle back beginning downwind leg aerodynamically-clean B-2 will glide quite distance will land little speed deBolt Champ no stalling tendencies Although may little too quick larger hotter engine newcomer aileron flying anyone comfortable aileron ship should have no problem B-2 Try sleek little Thompson Trophy racer Its real pleasure fly Radio Technique/Myers Continued page 27 LR Taylor & Co 208314 Roscoe Blvd Canoga Park CA 91306 Authorized RIC Service 941 North Main St Orange CA 92667 GSP Products Sacramento 2238 Rogue River Dr Sacramento CA 95826 Electronic Model Systems West Mark Schwing 6175 E Palo Alto Dr Anahem CA 92807 Pauls R/C Service 8823 Ruggles Omaha NE 68134 Digital Control Repair 10044 Goliad El Paso TX 79924 R/C Specialties 2026 Snowmass Lane Garland TX 75042 David Bowen 1607 Jane Pasadena TX 77502 John Deneke 526 Doremus Ave Glen Rock NJ 07452 product review product review product review thing photo above strongly resembles upper half obsolete soda can Thats just what Would believe has book writ ten about see throw little can properly flies rather remarkable manner Put some English throw get aeroba tics details aforementioned book Toobee Players Handbook Dan Poynter whole thing some what reminiscent Frisbee also pretty unlikely think about book retails $595 including shipping above address Toobees themselves available $295 per pack two Toobee Inc Box 7181 -E Berkeley CA 94707 product review product review product review 110 Model Aviation Toobee Toob nund book Para Publishing ox4232 Santa Barbara CA 93103 Anything RiC W3029 Hoffman Spokane WA 99205 W L Langford 510 Girard Ave Dothan AL 36303 G & G Electronics 497 Central Ave See konk MA 02771 Fred Morgan Box 8516 Cave Creek Stage 28238 N 44th St Phoenix AZ 85020 Ace Service Center Box 511 203 W 19th Higginsville MO 64037 Dundas Hobby Supply 16 Sleepy Hollow Dundas Ont Canada L9H 1H3 Donald J Wadella Dons Radio Control Systems 11392 74th Ave Delta BC Can ada V4C lEl R K Specialties 406 Prospect Dr SW Medicine Hat Alberta Canada TiA 4C1 Mastercraft 4 Linden Rd Chiselhurst Ext East London 5201 South Africa Keep letters flowing dont ask find parts please George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Big Bangers/Beckman Continued page 29 points never open never close will never spark engine will never run points can set engine runs well should example points too close will stay closed longer should effectively retarding spark engine will lose power especially high speed Points usually set about 0015 fully open magneto air gap should small possible since closer magnets pole pieces go energy will developed spark quality crank shaft bearings size flywheel determine gap needed ensure magnets actually touch go 0010 typical gap chainsaw engines Since gaps mechanical wear vibration can change over period time Periodic adjustment required keep engine running peak performance addition its good idea check things new engine becasue never know what may have happened engine between time left factory time got Listed below additional notes subjective data current set test engines Mag-Aero beautiful engine both fas cinating frustrating Like its big brother Kioritz 24 cu engine extremely well made delight operate first glance seems ideally suited aircraft use turns out have some detracting characteristics large cup-shaped rear housing contains flywheel magneto points As result front engine must less cluttered Big Bangers should make easier cowl Unfortunately position spark plug dictates very flat-faced cowl horizontal protrusion carburetor compli cates mounting in-line cowls Radial cowls would easier extra length engine would require false firewall scale position forward actual firewall engine mounted Despite awkward-seeming layout engine its quality makes outstanding big bird powerplant would particularly useful some Quarter Scale designs originally powered big glow engines Continued page 114 August1981 111 I-NDIAN CITY RADiO CONTROL CLUB mSENTS GREATER MICHIGAN MODELERS SHOW & EXPO ill iS WOATS CAR$ MANLtFACT*J#EES STATIC DI$PLAYSSWAP SHOP 23A 1981 Wt4Rht MI Aftillery Anuaory1 Oak Park MichiR
Edition: Model Aviation - 1981/08
Page Numbers: 26, 27, 110, 111
cchniqvc THE ACE XPO/MIXER long-awaited combined exponential mixing options board 11 G5 15 has released Ace RC mc Box 511 E Higginsville MO 64037 have built tested board plugs Silver Seven transmitter provides two chan nels XPO/LIN option linear channel adjustable trim authority ability mix two channels whether XPO except retract gear channel Interconnections shown customary arrange ments including V-tail elevons opposed flap elevator coupled ailerons rudder throttle tail-rotor mixing Helicopters kit easy build because printed circuits widely spaced caution would make warn very sure solder connections both sides board such connections provided problem traced back missing Well maybe thats entirely true also problem traced back fact forgotten ground input series following inputs frame skipped grounded channel 5 get rid spend bit time figuring out flapperons wouldnt work flap signal channel 6 being skipped board contains 41 terminals should considered making up control configura tion Twenty three numbered lettered Ace found helpful add designations pins bring control signals up board take away conditioned mixed signals encoder Control inputs labeled Cl through C7 skipping CS because retract channel doesnt come up Trim inputs labeled Ti through T3 outputs labeled Sl through S7 skipping S5 shown Figure 1 done suggest make up interconnection diagram like Figure 2 figuring Out arrangement want diagram will ensure nothing forgotten Check off connection make will notice flapperon setup contains 15 wires 30 soldered connections indicated solid lines arrow heads plus 2 Mainframe Jumpers Using diagram gave confidence making proper setup proved true Once board installed checked out flight testing might decide board should identified beingpart ofthe airplane installed plane flown Thus another airplane would lead buy another board would minimize time required change setups makes sense thats way intend use option puts us step closer concept universal transmitter can adapted needs particular model installing special program could have Helicop ter V-tail glider flapperon-equipped Pattern plane flown transmitter three option boards flight packs would have no special accessories such control reversers forward reverse servos control mixers oddsized control arms bellcranks etc because Cl Ti C2 T2 C3 KT3 C4 Ce 07 25 VDC A2ABALAl G A3 iJ82D HJ cil 12 cD Il[ 83 YGAIN B BAL B100 XGAIN Si 52 53 e VDC 5 VDC P Figure 1 Locations Interconnect points new Ace EXPO/MIXER board Some quite hard locate sketch although labeled PC Note George has shown sketch inverted way Ace would show order have inputs shown left might also note two points marked E P Thats OK because points same PC lands functions would reside transmitter could stock just type servo happy Having transmitter box learn minimizes potential pushing wrong control critical time mind logical extension RC system future Im opposed very complicated Top-of-the-Line transmitters see fered anticipate learning make proper use new functions will take some time addition will controls can knocked out place people handle transmitter casually impound areas Putting adjustments inside transmitter card cant get strikes worthwhile protection However look XPO/Mixer card will trend-setter Parts Detective Based mail recently would seem home-building electronic devices increase have receiving too letters ask locate parts circuits havent published Im flattered some folks believe know scarce parts can obtained must protest just much work locate Besides readers have outnumbered So let give outline places might investigate Assuming part still production first place contact manufacturers sales department Offer pay going price often will send part charge good-will gesture because Costs part worth open account bill Dont overdo path because will spoil everyone yourself included next resource manufacturers service department will charge going price plus handling because set up Most likely expensive way go has unquestioned advantage will provide top quality parts number need quick delivery Electronic parts usually fabricated batches moved out manufacturers inventory quickly possible Wholesalers jobbers provide intermediate warehouse function money keeps manufacturers moving newer grander items Wholesalers jobbers seldom will sell anything retail because would put direct competition customers would resented best should expect name address retailer could order item Next line OEMs Original Equip ment Manufacturers use part want products can reasonably expect will have service department will provide few items want price Recognize stock what expect need spares purpose supporting what have built 26 Model Aviation George M wu1 will reluctant part large numbers components because trying retailers jobbers wholesalers Still two should available would get names QEMs manufacturers sales department cases cant supply directly Eventually item want will gone shelves manufacturer wholesaler jobber OEM lost retailers maintain stocks Among Allied Radio division Tandy Corporation includes ubiquitous Radio Shack chain retail stores Allied has Radio Shack store can get Ask time will come above sources dry up happens go local magazines rack public library obtain copy Popular Electronics Modem Electron ics other magazine similar title will find back such magazines large number fine-print advertisements Look what want dont find what want listed its worth writing outfit like Poly-Paks because buy up left over supplies batches cheap move Out same way fast can turnover rapid no way can keep ads up-to-date Write stating needs dont have exactly number want usually know what close enough work will send difference will often different pin arrangement As long send application sheet identifies pins can build up circuit want difficulty might come have modify printed-circuit board slightly Aside Radio Shack Allied Poly Paks havent given real names order track down manufacturer cohorts need name Allied catalog can usually provide go large library technical library reasonably large company has something electronics ask examine book called IC Mixed Output 1 rect Output Log Amp B Enable Log Amp Output Mixer X common otation Log Amp 8 Output Mixer V Input Mixed Output 2 Y direct Output Al Enable L AU Log Amp B B 3 G H 1 - K Bidirectional mixing Log Amp input Log Amp Trim input LLog Amp B Input Amp B N Linear C input 0 LinearCT P Linear C Output ClAileron_____________________ Ti Aileron T. C2Elevator Control T2Elevator Trim C3 Ta C4 C6 C7 Rudder Control er Trim ttle & Trim Control Retract Switch C Reference - Si S2 S3 54 S6 S7 0 VDC 5 VDC E Right Flapperon s 2 Elevator C Rudderm Throttle Flapperon Retract 2 0 C Reference Working Volts interconnection diagram shows George sets up new Ace RC exponential/mixer board get fiapperons exponential control ailerons rudder linear control elevators throttle flaps normal operations pushbutton George added histranamitter uses control lust about auxiliary function wants tolike glider tug release instance retract switch also mixes aileron flap controls Refer August October1980 January February 1981 issues Georges previous discussions tests Sliver Seven Master published annually quarterly updates attempts keep up flood new products coming manufacturers contains data sheets item importantly purposes up-to-date listing manufacturers distributors know make use information Happy hunting Waily Kranz Bethpage NY shows off scratch-built Great Lakes 2T-1 E 80-in-span model /4-scale weighs2l lb Quadra swinging 18-6 propeller powers Finish isorange black white pinstripes per Smithsonian 3-view drawl ng Sig dope over Super Coverite Exhaust via scale pipes Futaba FP-6FN radio S-22 servos functions except Litco Magnum servo ailerons Dual pushrods used rudder elevator Plans will available $25 Norm Rosenstock 94 Cedar Drive Plainview NY 11803 Norms Waco HKS-7 plans also available kit no longer scheduled cant end discussion parts-hunting mentioning Ace RC Inc address above Royal Electronics 3535 South Irving St Englewood CO 80110 degree Heath Co Benton Harbor MI 49022 can will provide some specialized electronic components common hobby Only Ace RC advertises magazine think proper suggest try Ace first know personal experience will fill orders fast Since puts us back subject Ace RC Inc should mention have received some letters asking will build up Silver Seven kit someone answer NO Im writer manufacturer However want give up pleasure satisfac tion custom-building something want Ive got name Joseph Kinsey 1K RC Supplies 7712 Althea Ave Harrisburg PA 17112 showed version Silver Seven met Weak Signals show Toledo OH includes plug-in frequency mod ules have seen before Joe likes building being retired has time Contact him directly please Id guess Ace RC service center contains least person would build up kit fee costs 18t stamp ask Authorized Ace Service Centers Hillcrest Hobby Craft 3921 Fifth Ave San Diego CA 92103 Continued page 110 August1981 27 CANTON MODEL PRODUCTS Presents Dip Stick FAST QUICK EASY TO FINISH DS 40 55 SPAN 560 SQ IN WING LOADING 165-20 OZ 2945 ENGINE 1 43 LENGTH 3 OR 4 CHANNEL PRICE 4995 ADD 4 SHIPPING CHARGE DS 60 64 SPAN 672 SQ IN WING LOADING 20-22 OZ 46-60 ENGINE 48 LENGTH 3 OR 4 CHANNEL PRICE 5995 EXTREMELYADD 6 SHIPPING RUGGED TRAINER CHARGE WITH SYMMETRICAL AIRFOIL FOR AEROBATIC FLYING HIGHLY PREFABRICATED KIT INCLUDES PRE SHEETED BALSA FOAM WINGS PRE-BUILT JIG ASSEMBLED WOOD FUSELAGE PRE-SHAPED BALSA TAIL ASSEMBLY PREFORMED LANDING GEAR TAIL WHEEL AND AILERON WIRES INSTRUCTION SHEET WITH FULLY ILLUSTRATED ASSEMBLY DRAWINGS TO ORDER SEND BANK CHECK OR MONEY ORDER TO CANTON MODEL PRODUCTS PO BOX 6063 CANTON OHIO 44706 OR CALL 216 454-1039 FOR IMMEDIATE COD SHIPMENT After resin has hardened sand lightly fine sandpaper will have no trouble MonoKote adhering Miss Los Angeles lettering cowling can done Pactra Formula U Polyurethane paint Thoroughly clean MonoKote surface thinner use fine brush make mistake can easily wiped off little thinner Practice script design before begin ning polyurethane paint sticks surprisingly well MonoKote Engine mounting word encouragement inverted engines difficult start adjust During club racing always managed have 05 running well within 90-sec time limit easiest way start inverted engine cradle will hold entire model upside down wheels up simple wooden cradle can designed built about half hour Remember make end cradle little higher will keep nose model slightly higher tailand prevent gravity flooding carburetor fuel can also use Robart Super Stand As model make sure batteries leads plug good shape Speaking batteries 1 2-volt Nicad cell mounted fuselage wired through switch glow plug will help idle Install fuel tank 4-oz Sullivan RST fits nicely lower forward fuselage tubing protruding through hole firewalL Put silicone sealer around tubing firewall opening seal against oil leakage back fuselage battery pack goes top fuel tank Receiver servos mounted over wing would suggest securing receiver up against top fuselage rubberbands keep shifting Epoxy several small music wire hooks structure attach rubberbands Remember position radio equipment work toward proper center gravity CG location shown plans Landing gear wheel pants Bend two main gear legs out -in music wire Wrap joints copper wire solder 032 thick brass sheet landing gear mounting tabs should positioned yet soldered gear Screw both front rear struts fuselage mount streamlined tubing make final bend join two pieces After legs joined solder tabs place Small rubber gaskets made inner tube can inserted between brass mounting tabs wing act oil seals prevent abrasion wing wheel pants laminated h balsa sheet center 3/32 plywood sides sure leave least -in clearance between wheel pant inside wheel pant another good place use finishing resin protect dirt water fuel have shown favorite method mounting wheel pants plans single-point attachment via 4-40 bolt blind nut behind axle will allow front pant pivot upward avoid damage event noseover hard landing Flying sure CG shown plans will give nice groovy easyflying model Make CG adjustments caution small increments Im sure now ye heard warnings about trying fly tail-heavy modelits disaster Start small control surface throws have used following ailerons A-in up down elevator -in up down rudder %-in left right Takeoffs fast smooth will need worry about runway length prepared hold right rudder until model off ground begins pick up airspeed Once air model smooth steady have kept model recommended 3 3 lb total weight landings can slow easy Throttle back beginning downwind leg aerodynamically-clean B-2 will glide quite distance will land little speed deBolt Champ no stalling tendencies Although may little too quick larger hotter engine newcomer aileron flying anyone comfortable aileron ship should have no problem B-2 Try sleek little Thompson Trophy racer Its real pleasure fly Radio Technique/Myers Continued page 27 LR Taylor & Co 208314 Roscoe Blvd Canoga Park CA 91306 Authorized RIC Service 941 North Main St Orange CA 92667 GSP Products Sacramento 2238 Rogue River Dr Sacramento CA 95826 Electronic Model Systems West Mark Schwing 6175 E Palo Alto Dr Anahem CA 92807 Pauls R/C Service 8823 Ruggles Omaha NE 68134 Digital Control Repair 10044 Goliad El Paso TX 79924 R/C Specialties 2026 Snowmass Lane Garland TX 75042 David Bowen 1607 Jane Pasadena TX 77502 John Deneke 526 Doremus Ave Glen Rock NJ 07452 product review product review product review thing photo above strongly resembles upper half obsolete soda can Thats just what Would believe has book writ ten about see throw little can properly flies rather remarkable manner Put some English throw get aeroba tics details aforementioned book Toobee Players Handbook Dan Poynter whole thing some what reminiscent Frisbee also pretty unlikely think about book retails $595 including shipping above address Toobees themselves available $295 per pack two Toobee Inc Box 7181 -E Berkeley CA 94707 product review product review product review 110 Model Aviation Toobee Toob nund book Para Publishing ox4232 Santa Barbara CA 93103 Anything RiC W3029 Hoffman Spokane WA 99205 W L Langford 510 Girard Ave Dothan AL 36303 G & G Electronics 497 Central Ave See konk MA 02771 Fred Morgan Box 8516 Cave Creek Stage 28238 N 44th St Phoenix AZ 85020 Ace Service Center Box 511 203 W 19th Higginsville MO 64037 Dundas Hobby Supply 16 Sleepy Hollow Dundas Ont Canada L9H 1H3 Donald J Wadella Dons Radio Control Systems 11392 74th Ave Delta BC Can ada V4C lEl R K Specialties 406 Prospect Dr SW Medicine Hat Alberta Canada TiA 4C1 Mastercraft 4 Linden Rd Chiselhurst Ext East London 5201 South Africa Keep letters flowing dont ask find parts please George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Big Bangers/Beckman Continued page 29 points never open never close will never spark engine will never run points can set engine runs well should example points too close will stay closed longer should effectively retarding spark engine will lose power especially high speed Points usually set about 0015 fully open magneto air gap should small possible since closer magnets pole pieces go energy will developed spark quality crank shaft bearings size flywheel determine gap needed ensure magnets actually touch go 0010 typical gap chainsaw engines Since gaps mechanical wear vibration can change over period time Periodic adjustment required keep engine running peak performance addition its good idea check things new engine becasue never know what may have happened engine between time left factory time got Listed below additional notes subjective data current set test engines Mag-Aero beautiful engine both fas cinating frustrating Like its big brother Kioritz 24 cu engine extremely well made delight operate first glance seems ideally suited aircraft use turns out have some detracting characteristics large cup-shaped rear housing contains flywheel magneto points As result front engine must less cluttered Big Bangers should make easier cowl Unfortunately position spark plug dictates very flat-faced cowl horizontal protrusion carburetor compli cates mounting in-line cowls Radial cowls would easier extra length engine would require false firewall scale position forward actual firewall engine mounted Despite awkward-seeming layout engine its quality makes outstanding big bird powerplant would particularly useful some Quarter Scale designs originally powered big glow engines Continued page 114 August1981 111 I-NDIAN CITY RADiO CONTROL CLUB mSENTS GREATER MICHIGAN MODELERS SHOW & EXPO ill iS WOATS CAR$ MANLtFACT*J#EES STATIC DI$PLAYSSWAP SHOP 23A 1981 Wt4Rht MI Aftillery Anuaory1 Oak Park MichiR