- short beep pin removed lets know its safe fly alarm stays signifies 31M situation Replace pin wait until someone returns transmitter impound area try again See text address supplier brain frequency pinboard mounted its metal lockable enclosure surface-mounted switches make board easy maintain pinboard made Plexiglas brass leaf switches attached directly circuit board attached stand-offs vis ible wiring circuit board serve reminder important frequency control 36 Model Aviation l everyone flying field has new dualconversion narrowband recievers updated frequency control pinboard could help avert possible disaster Making clever use brain detailed July 1989 issue MA board can detect over 120 31M situations channels 11 through 58 U Richard Slate IF THE FLIERS Ive talked indi cation RC modelers consider tran sition 1991 narrow-band dualconversion radio botherif downright traumatic seems fre quency control pinboards hereinafter named freq-out boards because inability cover new channels soon destined join over hill gang OWBAM old wideband AM ra dios well freq-out board club field example indicated 31M third order intermodulation situations even-numbered channels 38 through 56 Converting handle new frequencies adding diodes already has 100 would have created virtual Pandoras box Yet something done bring up par just werent sure what recent club meeting led workshop called What 1991 Radio ques tion everyones mind What now suggestion purchase al ready assembled tested CMOS state-of the-art whammie-jammie freq-out board brain SIM Custom Kentucky see M Dennis Tiernys article Whistle Blows Dont Fly July 1989 issue Model Aviation What genuinely splendid idea told arrives meaning can design new pinboard mount suggests volunteers may cost few bucks tested trying weasel out Save re ceipts response Rumor has bureaucratic system club moves along Mach II thats rumor has never clocked ordered board arrived due course almost ready installed marvel technology capable sort ing out over 120 31M situations channels 11 through 58 After looking board over could plainly see design cri teria threefold top quality simplicity now Piece-o-cake says gan plan wipe out easy subproj ects first install alarm system cluded circuit board neat little wiring diagram what to make buzzer buzz Fifteen minutes later few bucks poorer what needed local Radio Shack part NPN transistor type 2N2222 eas ily soldered place after drilling three strategically located holes left side board per instructions other part alarm buzzer itself RS part number provided Hookup basic since red black wire RC modelers know about red black wires soldered long red long black wire V oard locations 48-volt battery box connections decided make pinboard itself Plexiglas Plexiglas practically unbreak able looks good workable doesnt need painting waterproof good insula tor its bad points decided build own leaf switches channel switch components should made same material deter corrosion re flected dunking pencil glass ice water cool off Brass Zounds Leaves -in brass could used switches Brass wire would work hot contacts brass buss wire common leaves together Add 632 x /2-in brass machine screws mount switch leaves almost done decided use white hookup wire switch-to-circuit board connections Brass glassmodern no Off went local hardware store Ralphs has good K&S brass sec tion also has string percussion seciion thats buy hammers selected dozen pieces -in brass flat stock make switch leaves Arriving back shop cut brass 3-in long pieces stacked groups 10 drilled through stack near end #6 x -in slotted-head brass ma chine screws 141 holes switches drilled Plexiglasthree switch assembly brass wire hot switch contact threaded through two /6 holes remaining #6 hole mounting switch leaf face board brass wire feeds through two / holes twisted backside soldered white wire running its assigned channel hole circuit board #6 screws tied together long piece brass wire wrapped once around screw backside secured nut long wire becomes buss ground switches connected main circuit board - soldered May 1990 37 Close-up circuit boardthe brain frequency controi board aiarm system driver transistor shown instailed just beiow top left board mounting screw moisture-proof Plexiglas box encioses entire circuit board Note bag desiccant pretty happy progress until realized 98 solder joints go half itsy bitsy Faint heart neer won fair maiden muttered began measuring gutting stripping end 49 pieces 22-gauge white stranded wire become cen tral nervous system little monster cut wires plenty long could trim off excess before soldering switch end soldered first white wire hole num ber 11 circuit board wrapped switch end around hot switch ter Continued page 159 brass screws hoiding ieaf switches Plexiglas board interconnected brass bus wire hot contacts can seen under switch icaves wires run ning circuit board dry transfer numerals aie protected polyurethane spray RA EO CON T ROL AIR P LAN ES CARS S NS DEALERS S FACTURERS EARLY RESERVATIONS INSURE CHOICE AREAS OUTDOOR FLYING DEMOS---INDOOR BOAT POND---CAR TRACK SWAP TABLES PRIZES ITE CONCESSIONS IC MODEL DISPLAY minal channel 11 slack re moved before soldering After installing other 47 white wires similar manner whew dressed bundles near circuit board secured bun dles small cable ties rang out wire Radio Shack digital volt meter Theyre paying commis sion Things looking up wasnt out woods yet Thinking about convenient would guys field way know ing channel pin removing pinboard realized dry trans fer numerals obvious answer So off local stationers went way began think losing grip because hadnt touched piece balsa almost three days Anyway black numerals clear Plexiglas looks great Theyre easy apply permanent protected coat polyurethane spray Another club member volunteered fur nish metal enclosure pinboard measured 26 high 60 long 4 deep complete hasp could lock box hope some Little League ballfield somewhere isnt missing its circuitbreaker box spray painted box indoor/outdoor K-Mart white enamel $137 canno cutting corners Continued page 163 Compendium CG-325 Aristo-Craft HiTec Multi Charge-A-Matic $9995 CG-300A AC/DC Converter $5995 units imported Polks Model Craft Hobbies Inc 346 Bergen Ave Jersey City NJ 07304 tel 1-800-225-POLK Oops typo managed slip April col umn page 36 first column about halfway down Answer Question 1 said characteristic voltage lead-acid cell 15 volts Wrong Everybody knows really 22 volts Sorry about too should have caught RMcM responding advertIsers mention reed about ModelAviatlon PEAK 4-28CELLSI EASY HOOKUP LCD READOUT SEE JAN 90 RCM $125 UPS Prepaid Tx Ree add 6% tax SEND SASE FOR BROCHURE DETECTOR ASTRO FLIGHT t12 ASTRO FLIGHT tUS RESISTIVE-TYPE CHARGERS AERO ELECTRONICS RT 6 BOX 54J AUSTIN TX 78737 512 2883220 7-9ptn ASOR5 SOOCr lAfl AD SDVO 5~DITIAI TUCY itOSOS SOD TDCY OACE ACJOSTOS2 TOACOD55DD OUfl EASt SALUT1c5 1150 301 5T BOACCYC D12Zt5 INSTAILATICII PACKACE S.1 noS AAAiA4d uinuu rurnurmang oyuium TOP PERFORMANCE K&B ENGINES AirgdaneMarine K&B FUELSK&B GLOW PLUGS 9 Blends4 ChoIces Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN KAB SUPER FOXY THINNER K&B SUPER FOXY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS May 1990 159 shrink tubing Youll have made substitute plug works better original Project 1991/Slate Continued page 37THE TAILGEAR TAThU NJP1-8mUT ASSDMX FOAM CORE FLOATS FOR AIRPLANES AND HELICOPTERS V HULL DESIGN FLOAT PLANS AND KITS FOR 4 OUND AIRPLANES AND READY TO MOUNT FLOATS FOR 4 OUND HELICOPTERS SEND SASE FOR CATALOG SHEETS KiROlIER R/C PRODUCTS INC • SHUPIELD WAY CLARK NJ 07066 014e% ig ~O LENTY OF FREE PARKING MARC SHOW MID ATLANTIC RADIO CONTROL JUNE 2 AND 3 1990 Saturday 9 am 5 pm Sunday- 10 am to4pm MARYLAND STATE FAIR GROUNDS TIMONIUM MARYLAND Sponsored THE RADIO CONTROL MODELERS OF BALTIMORE \\ YORK ROAB// g#ioNIuM/ * J\ PAIUOROIJNOS 1IUONNJU no N ~UALTIMORES -IjO Project 1991/Slate Continued page 159 board best Having demonstrated great zeal seminonstop labor have regular job too sub-sub-subassemblies reduced just two subs new freq-out board ready bench testing thats electronic talk test flying robbed clothespin bag installed pin switch set bench power sup ply 5V hooked board turned Wala alarm answered efforts one-second beep re moved pin got shorter beep Replac ing gave another short beep Gaining confidence removed another pin skipped six channels removed another skipped six took Aha Sweet success alarm sounded continuously until re placed three pins causing 31M What fun next half hour spent creating 31M situations heretofore un heard planet mounted circuit board Plex iglas using stand-offs enclosed along bag desiccant Plexiglas box box affixed main board clear silicone makes water proof dustproof removable installed pinboard metal enclo sure using 1420 carriage bolts fender washers SWAP SHOP $10 FULL TABLE PER DAY NO DEALERS PLEASE Pre-Registration CALL WAYNE MELLOR 301-788-3742 Power pinboard supplied four 4-amp D-size Ni-Cds solar panel constructed mounted roof above freq-out board supplies 40 mil liamps charging current seven volts 48-volt battery pack bright sun system recharging seems ade quate Another solar cell can always added winter needed microswitch mounted corner metal enclosure turns system lid opened use shuts off lid closed pin happens missing loosely installed system powered up alarm will sound until pins place feature pre vents false indications 3IMs during course flying day exactly 830 am perfect Sunday morning arrived flying field mounted new pnboard Viewing board opened ready use sort like looking south end north bound turkey pilots came out fly day happy contribute opinions too board well ac cepted good time little routine maintenance new freq-out board should last long time need now couple hundred new dualconversion narrow-band receivers well really ready 1991 Im happy report guys getting ready new RC era though pain pocketContinued page 164 FOR INFORMATION CONTACT MARC DIRECTORS JOHN KIRK 912 Cromwell Bridge Road Towson MD 21204 301-825-8138 STACY PASS 301-484-9139 PRODUCTS PORTHE Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes * Headers uri Mufflers Expansion Mufflers copter Ball Mufflers ialized Exhaust Systems UnsurpassA VorAsn 27 *35000 31 $38000 34 $40000 37 $43000 42 $45000 Engines Complete Nothing Buy Now can own Sachs little $250 now have new 20 & 24 light weight spring start Sachs add *50 tor throttlecoupled spark edvance TG MFG 201 427-3845 857 HIgh Mtn Rd N Haledon N 07508 May1990 163 Sachs Doimar EnginesNew Torque Customized TOMount Only 100% SACKS Engine PreBuilt MV-i Typhoon * Designed Ron Chidgey *1 000/o Gator RIG Products Components wing/stab tubes & adjusters canopy & cowl * 1000/a built up construction precision jigs * Bob Violetts Magnalite GB 125 used formers * Satisfaction Guaranteed WOODORAINS INC Rt 9 Box 122 Gumming GA 30130 404-889-4758 Tim Megan Richardson Ga Residents Add 6% Sales Tax HIGH QUALITY ULTRA SWITCH HARNESS Gold contacts inside switch AJI connectors manufactured Futaba Ultra low profile actuator Positive lock Mounting simply requires drill ing 1/4 inch hole * 100% tested custom cable lengths availbie upon request minimal cost ULTRA SWITCH HARNESS $1995 PLUS $250 SHIPPING & HANDLING Custom Tronics new company dedicated solely manufacture electronic prod ucts custom-designed gadgetry RC modeler offering system interested clubs Send stamped pread dressed business size # 11 envelope Cus tom Tronics PO Box 6151 Katy TX 77491 Telephone 1-713/855-6677 envelope will also receive first edition catalog companys brand-new product linefree RC Aerobatics/Van Putte Continued page 41 best pilot cannot win team trials inade quate airplane Am feeling properly chastised really since t still dont think biplane will ever truly competitive Pattern really believe biplanes aerodynamically inferior monoplanes mentioned March column another part reason prejudice will very hard convince some judges biplane can really perform Pattern maneuvers well judge team selection finals first impression Tonys Fyg-Leaf was trying make statement con vince airplane could fly maneu vers described rule book force myself ohjective believe t successful Tony earned scores gave him judge notable excep tion scores generally low relative rest judges However scores suddenly high relative rest judges Tonys biplane flew judge liked bi planes Boy cant wait get some mail biplane controversy RC Giant Scale/de Vries Continued page 43 tail surfaces looked rather small enlarged regain same areas Senior Kadet Bob used 45 power tate la mented Kadet figured new semiscale Spirit might need go installed Fox 60 uncovered form engine spinner wheels resulting model weighs 6 lb Bob estimates itll tip scales nine pounds ready fly aluminum Mono Kote covering Bob Hansons Spirit St Louis striking semiscale Giant No would ever imagine its basically Sig Senior Kadet price three-view bit balsa ply hes pro duced outstanding Scale model Hes commended skill insight Back next month RC Electrics/Kopski Continued page 45 may have missed col umn dealt differences between two cat egories speed controls frame-rate high-rate designs column showed total power system efficiency can dramatically influenced types used particular test results presented clearly show high-rate technology way goby big marginin applications speed control truly used way What mean have plane flown speed control controlling speed throughout flight opposed being used on/off device youre much better off avoid ing frame-rate designs sounds interest go find copy December 89 issue Related columns October 89 Janu ary 90 issues Other recent reader reaction includes varied comments BEC battery eliminator cir cuits topic also discussed recent columns BEC products use motor battery provide operating voltage receiver/servo system Aircraft versions intended automatically shut down motor still enough battery reserve safely run receiver Reader comments BEC mixed Several wrote expressing satisfaction BEC prod uct theyre using others quite oppo site say latter case crashed planes rea son negative reaction reader partic ular cautioned about using some RC car controls planesbecause BEC designs may al low flight-time margin very successful BEC-equipped product popular Futaha Elec tric receiver receiver also includes builtin frame-rate speed control recommendation dont know sure BEC product works well air plane dont use Personally Im staying separate receiver batteries speed controls now Another topic interest concern has 164 Model Aviation PLUS SIePP WJG & HANDLING Satisfaction Guaranteed SH-710 Pkg 24-$2 95 EAv HINEE THE HIGH-TECH HINGE DESIGNED FOR THE CYANOACRYLATE AGE Easier install other hinge No gouging picking messy epoxies Simply cut single knife slot hinge slide hinges place apply few drops favorite CA glue youre done SUPER FAST SUPER EASY SUPER STRONG 74e e4t /a9e4 /oa MFG CO INC.401-7 So Front St.Montezuma IA 50171 23-5154 0- SUPERTANKS & SUPERMUFFLERS ZINGER WOOD PROPS GIANT SCALE RIO PLANS UJ RA RT NEODESHA KS 66757 316325-2821 DEALERS CALL SEND $100 FOR COMPLETE CATALOG
Edition: Model Aviation - 1990/05
Page Numbers: 36, 37, 159, 163, 164
Edition: Model Aviation - 1990/05
Page Numbers: 36, 37, 159, 163, 164
- short beep pin removed lets know its safe fly alarm stays signifies 31M situation Replace pin wait until someone returns transmitter impound area try again See text address supplier brain frequency pinboard mounted its metal lockable enclosure surface-mounted switches make board easy maintain pinboard made Plexiglas brass leaf switches attached directly circuit board attached stand-offs vis ible wiring circuit board serve reminder important frequency control 36 Model Aviation l everyone flying field has new dualconversion narrowband recievers updated frequency control pinboard could help avert possible disaster Making clever use brain detailed July 1989 issue MA board can detect over 120 31M situations channels 11 through 58 U Richard Slate IF THE FLIERS Ive talked indi cation RC modelers consider tran sition 1991 narrow-band dualconversion radio botherif downright traumatic seems fre quency control pinboards hereinafter named freq-out boards because inability cover new channels soon destined join over hill gang OWBAM old wideband AM ra dios well freq-out board club field example indicated 31M third order intermodulation situations even-numbered channels 38 through 56 Converting handle new frequencies adding diodes already has 100 would have created virtual Pandoras box Yet something done bring up par just werent sure what recent club meeting led workshop called What 1991 Radio ques tion everyones mind What now suggestion purchase al ready assembled tested CMOS state-of the-art whammie-jammie freq-out board brain SIM Custom Kentucky see M Dennis Tiernys article Whistle Blows Dont Fly July 1989 issue Model Aviation What genuinely splendid idea told arrives meaning can design new pinboard mount suggests volunteers may cost few bucks tested trying weasel out Save re ceipts response Rumor has bureaucratic system club moves along Mach II thats rumor has never clocked ordered board arrived due course almost ready installed marvel technology capable sort ing out over 120 31M situations channels 11 through 58 After looking board over could plainly see design cri teria threefold top quality simplicity now Piece-o-cake says gan plan wipe out easy subproj ects first install alarm system cluded circuit board neat little wiring diagram what to make buzzer buzz Fifteen minutes later few bucks poorer what needed local Radio Shack part NPN transistor type 2N2222 eas ily soldered place after drilling three strategically located holes left side board per instructions other part alarm buzzer itself RS part number provided Hookup basic since red black wire RC modelers know about red black wires soldered long red long black wire V oard locations 48-volt battery box connections decided make pinboard itself Plexiglas Plexiglas practically unbreak able looks good workable doesnt need painting waterproof good insula tor its bad points decided build own leaf switches channel switch components should made same material deter corrosion re flected dunking pencil glass ice water cool off Brass Zounds Leaves -in brass could used switches Brass wire would work hot contacts brass buss wire common leaves together Add 632 x /2-in brass machine screws mount switch leaves almost done decided use white hookup wire switch-to-circuit board connections Brass glassmodern no Off went local hardware store Ralphs has good K&S brass sec tion also has string percussion seciion thats buy hammers selected dozen pieces -in brass flat stock make switch leaves Arriving back shop cut brass 3-in long pieces stacked groups 10 drilled through stack near end #6 x -in slotted-head brass ma chine screws 141 holes switches drilled Plexiglasthree switch assembly brass wire hot switch contact threaded through two /6 holes remaining #6 hole mounting switch leaf face board brass wire feeds through two / holes twisted backside soldered white wire running its assigned channel hole circuit board #6 screws tied together long piece brass wire wrapped once around screw backside secured nut long wire becomes buss ground switches connected main circuit board - soldered May 1990 37 Close-up circuit boardthe brain frequency controi board aiarm system driver transistor shown instailed just beiow top left board mounting screw moisture-proof Plexiglas box encioses entire circuit board Note bag desiccant pretty happy progress until realized 98 solder joints go half itsy bitsy Faint heart neer won fair maiden muttered began measuring gutting stripping end 49 pieces 22-gauge white stranded wire become cen tral nervous system little monster cut wires plenty long could trim off excess before soldering switch end soldered first white wire hole num ber 11 circuit board wrapped switch end around hot switch ter Continued page 159 brass screws hoiding ieaf switches Plexiglas board interconnected brass bus wire hot contacts can seen under switch icaves wires run ning circuit board dry transfer numerals aie protected polyurethane spray RA EO CON T ROL AIR P LAN ES CARS S NS DEALERS S FACTURERS EARLY RESERVATIONS INSURE CHOICE AREAS OUTDOOR FLYING DEMOS---INDOOR BOAT POND---CAR TRACK SWAP TABLES PRIZES ITE CONCESSIONS IC MODEL DISPLAY minal channel 11 slack re moved before soldering After installing other 47 white wires similar manner whew dressed bundles near circuit board secured bun dles small cable ties rang out wire Radio Shack digital volt meter Theyre paying commis sion Things looking up wasnt out woods yet Thinking about convenient would guys field way know ing channel pin removing pinboard realized dry trans fer numerals obvious answer So off local stationers went way began think losing grip because hadnt touched piece balsa almost three days Anyway black numerals clear Plexiglas looks great Theyre easy apply permanent protected coat polyurethane spray Another club member volunteered fur nish metal enclosure pinboard measured 26 high 60 long 4 deep complete hasp could lock box hope some Little League ballfield somewhere isnt missing its circuitbreaker box spray painted box indoor/outdoor K-Mart white enamel $137 canno cutting corners Continued page 163 Compendium CG-325 Aristo-Craft HiTec Multi Charge-A-Matic $9995 CG-300A AC/DC Converter $5995 units imported Polks Model Craft Hobbies Inc 346 Bergen Ave Jersey City NJ 07304 tel 1-800-225-POLK Oops typo managed slip April col umn page 36 first column about halfway down Answer Question 1 said characteristic voltage lead-acid cell 15 volts Wrong Everybody knows really 22 volts Sorry about too should have caught RMcM responding advertIsers mention reed about ModelAviatlon PEAK 4-28CELLSI EASY HOOKUP LCD READOUT SEE JAN 90 RCM $125 UPS Prepaid Tx Ree add 6% tax SEND SASE FOR BROCHURE DETECTOR ASTRO FLIGHT t12 ASTRO FLIGHT tUS RESISTIVE-TYPE CHARGERS AERO ELECTRONICS RT 6 BOX 54J AUSTIN TX 78737 512 2883220 7-9ptn ASOR5 SOOCr lAfl AD SDVO 5~DITIAI TUCY itOSOS SOD TDCY OACE ACJOSTOS2 TOACOD55DD OUfl EASt SALUT1c5 1150 301 5T BOACCYC D12Zt5 INSTAILATICII PACKACE S.1 noS AAAiA4d uinuu rurnurmang oyuium TOP PERFORMANCE K&B ENGINES AirgdaneMarine K&B FUELSK&B GLOW PLUGS 9 Blends4 ChoIces Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN KAB SUPER FOXY THINNER K&B SUPER FOXY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS May 1990 159 shrink tubing Youll have made substitute plug works better original Project 1991/Slate Continued page 37THE TAILGEAR TAThU NJP1-8mUT ASSDMX FOAM CORE FLOATS FOR AIRPLANES AND HELICOPTERS V HULL DESIGN FLOAT PLANS AND KITS FOR 4 OUND AIRPLANES AND READY TO MOUNT FLOATS FOR 4 OUND HELICOPTERS SEND SASE FOR CATALOG SHEETS KiROlIER R/C PRODUCTS INC • SHUPIELD WAY CLARK NJ 07066 014e% ig ~O LENTY OF FREE PARKING MARC SHOW MID ATLANTIC RADIO CONTROL JUNE 2 AND 3 1990 Saturday 9 am 5 pm Sunday- 10 am to4pm MARYLAND STATE FAIR GROUNDS TIMONIUM MARYLAND Sponsored THE RADIO CONTROL MODELERS OF BALTIMORE \\ YORK ROAB// g#ioNIuM/ * J\ PAIUOROIJNOS 1IUONNJU no N ~UALTIMORES -IjO Project 1991/Slate Continued page 159 board best Having demonstrated great zeal seminonstop labor have regular job too sub-sub-subassemblies reduced just two subs new freq-out board ready bench testing thats electronic talk test flying robbed clothespin bag installed pin switch set bench power sup ply 5V hooked board turned Wala alarm answered efforts one-second beep re moved pin got shorter beep Replac ing gave another short beep Gaining confidence removed another pin skipped six channels removed another skipped six took Aha Sweet success alarm sounded continuously until re placed three pins causing 31M What fun next half hour spent creating 31M situations heretofore un heard planet mounted circuit board Plex iglas using stand-offs enclosed along bag desiccant Plexiglas box box affixed main board clear silicone makes water proof dustproof removable installed pinboard metal enclo sure using 1420 carriage bolts fender washers SWAP SHOP $10 FULL TABLE PER DAY NO DEALERS PLEASE Pre-Registration CALL WAYNE MELLOR 301-788-3742 Power pinboard supplied four 4-amp D-size Ni-Cds solar panel constructed mounted roof above freq-out board supplies 40 mil liamps charging current seven volts 48-volt battery pack bright sun system recharging seems ade quate Another solar cell can always added winter needed microswitch mounted corner metal enclosure turns system lid opened use shuts off lid closed pin happens missing loosely installed system powered up alarm will sound until pins place feature pre vents false indications 3IMs during course flying day exactly 830 am perfect Sunday morning arrived flying field mounted new pnboard Viewing board opened ready use sort like looking south end north bound turkey pilots came out fly day happy contribute opinions too board well ac cepted good time little routine maintenance new freq-out board should last long time need now couple hundred new dualconversion narrow-band receivers well really ready 1991 Im happy report guys getting ready new RC era though pain pocketContinued page 164 FOR INFORMATION CONTACT MARC DIRECTORS JOHN KIRK 912 Cromwell Bridge Road Towson MD 21204 301-825-8138 STACY PASS 301-484-9139 PRODUCTS PORTHE Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes * Headers uri Mufflers Expansion Mufflers copter Ball Mufflers ialized Exhaust Systems UnsurpassA VorAsn 27 *35000 31 $38000 34 $40000 37 $43000 42 $45000 Engines Complete Nothing Buy Now can own Sachs little $250 now have new 20 & 24 light weight spring start Sachs add *50 tor throttlecoupled spark edvance TG MFG 201 427-3845 857 HIgh Mtn Rd N Haledon N 07508 May1990 163 Sachs Doimar EnginesNew Torque Customized TOMount Only 100% SACKS Engine PreBuilt MV-i Typhoon * Designed Ron Chidgey *1 000/o Gator RIG Products Components wing/stab tubes & adjusters canopy & cowl * 1000/a built up construction precision jigs * Bob Violetts Magnalite GB 125 used formers * Satisfaction Guaranteed WOODORAINS INC Rt 9 Box 122 Gumming GA 30130 404-889-4758 Tim Megan Richardson Ga Residents Add 6% Sales Tax HIGH QUALITY ULTRA SWITCH HARNESS Gold contacts inside switch AJI connectors manufactured Futaba Ultra low profile actuator Positive lock Mounting simply requires drill ing 1/4 inch hole * 100% tested custom cable lengths availbie upon request minimal cost ULTRA SWITCH HARNESS $1995 PLUS $250 SHIPPING & HANDLING Custom Tronics new company dedicated solely manufacture electronic prod ucts custom-designed gadgetry RC modeler offering system interested clubs Send stamped pread dressed business size # 11 envelope Cus tom Tronics PO Box 6151 Katy TX 77491 Telephone 1-713/855-6677 envelope will also receive first edition catalog companys brand-new product linefree RC Aerobatics/Van Putte Continued page 41 best pilot cannot win team trials inade quate airplane Am feeling properly chastised really since t still dont think biplane will ever truly competitive Pattern really believe biplanes aerodynamically inferior monoplanes mentioned March column another part reason prejudice will very hard convince some judges biplane can really perform Pattern maneuvers well judge team selection finals first impression Tonys Fyg-Leaf was trying make statement con vince airplane could fly maneu vers described rule book force myself ohjective believe t successful Tony earned scores gave him judge notable excep tion scores generally low relative rest judges However scores suddenly high relative rest judges Tonys biplane flew judge liked bi planes Boy cant wait get some mail biplane controversy RC Giant Scale/de Vries Continued page 43 tail surfaces looked rather small enlarged regain same areas Senior Kadet Bob used 45 power tate la mented Kadet figured new semiscale Spirit might need go installed Fox 60 uncovered form engine spinner wheels resulting model weighs 6 lb Bob estimates itll tip scales nine pounds ready fly aluminum Mono Kote covering Bob Hansons Spirit St Louis striking semiscale Giant No would ever imagine its basically Sig Senior Kadet price three-view bit balsa ply hes pro duced outstanding Scale model Hes commended skill insight Back next month RC Electrics/Kopski Continued page 45 may have missed col umn dealt differences between two cat egories speed controls frame-rate high-rate designs column showed total power system efficiency can dramatically influenced types used particular test results presented clearly show high-rate technology way goby big marginin applications speed control truly used way What mean have plane flown speed control controlling speed throughout flight opposed being used on/off device youre much better off avoid ing frame-rate designs sounds interest go find copy December 89 issue Related columns October 89 Janu ary 90 issues Other recent reader reaction includes varied comments BEC battery eliminator cir cuits topic also discussed recent columns BEC products use motor battery provide operating voltage receiver/servo system Aircraft versions intended automatically shut down motor still enough battery reserve safely run receiver Reader comments BEC mixed Several wrote expressing satisfaction BEC prod uct theyre using others quite oppo site say latter case crashed planes rea son negative reaction reader partic ular cautioned about using some RC car controls planesbecause BEC designs may al low flight-time margin very successful BEC-equipped product popular Futaha Elec tric receiver receiver also includes builtin frame-rate speed control recommendation dont know sure BEC product works well air plane dont use Personally Im staying separate receiver batteries speed controls now Another topic interest concern has 164 Model Aviation PLUS SIePP WJG & HANDLING Satisfaction Guaranteed SH-710 Pkg 24-$2 95 EAv HINEE THE HIGH-TECH HINGE DESIGNED FOR THE CYANOACRYLATE AGE Easier install other hinge No gouging picking messy epoxies Simply cut single knife slot hinge slide hinges place apply few drops favorite CA glue youre done SUPER FAST SUPER EASY SUPER STRONG 74e e4t /a9e4 /oa MFG CO INC.401-7 So Front St.Montezuma IA 50171 23-5154 0- SUPERTANKS & SUPERMUFFLERS ZINGER WOOD PROPS GIANT SCALE RIO PLANS UJ RA RT NEODESHA KS 66757 316325-2821 DEALERS CALL SEND $100 FOR COMPLETE CATALOG
Edition: Model Aviation - 1990/05
Page Numbers: 36, 37, 159, 163, 164
- short beep pin removed lets know its safe fly alarm stays signifies 31M situation Replace pin wait until someone returns transmitter impound area try again See text address supplier brain frequency pinboard mounted its metal lockable enclosure surface-mounted switches make board easy maintain pinboard made Plexiglas brass leaf switches attached directly circuit board attached stand-offs vis ible wiring circuit board serve reminder important frequency control 36 Model Aviation l everyone flying field has new dualconversion narrowband recievers updated frequency control pinboard could help avert possible disaster Making clever use brain detailed July 1989 issue MA board can detect over 120 31M situations channels 11 through 58 U Richard Slate IF THE FLIERS Ive talked indi cation RC modelers consider tran sition 1991 narrow-band dualconversion radio botherif downright traumatic seems fre quency control pinboards hereinafter named freq-out boards because inability cover new channels soon destined join over hill gang OWBAM old wideband AM ra dios well freq-out board club field example indicated 31M third order intermodulation situations even-numbered channels 38 through 56 Converting handle new frequencies adding diodes already has 100 would have created virtual Pandoras box Yet something done bring up par just werent sure what recent club meeting led workshop called What 1991 Radio ques tion everyones mind What now suggestion purchase al ready assembled tested CMOS state-of the-art whammie-jammie freq-out board brain SIM Custom Kentucky see M Dennis Tiernys article Whistle Blows Dont Fly July 1989 issue Model Aviation What genuinely splendid idea told arrives meaning can design new pinboard mount suggests volunteers may cost few bucks tested trying weasel out Save re ceipts response Rumor has bureaucratic system club moves along Mach II thats rumor has never clocked ordered board arrived due course almost ready installed marvel technology capable sort ing out over 120 31M situations channels 11 through 58 After looking board over could plainly see design cri teria threefold top quality simplicity now Piece-o-cake says gan plan wipe out easy subproj ects first install alarm system cluded circuit board neat little wiring diagram what to make buzzer buzz Fifteen minutes later few bucks poorer what needed local Radio Shack part NPN transistor type 2N2222 eas ily soldered place after drilling three strategically located holes left side board per instructions other part alarm buzzer itself RS part number provided Hookup basic since red black wire RC modelers know about red black wires soldered long red long black wire V oard locations 48-volt battery box connections decided make pinboard itself Plexiglas Plexiglas practically unbreak able looks good workable doesnt need painting waterproof good insula tor its bad points decided build own leaf switches channel switch components should made same material deter corrosion re flected dunking pencil glass ice water cool off Brass Zounds Leaves -in brass could used switches Brass wire would work hot contacts brass buss wire common leaves together Add 632 x /2-in brass machine screws mount switch leaves almost done decided use white hookup wire switch-to-circuit board connections Brass glassmodern no Off went local hardware store Ralphs has good K&S brass sec tion also has string percussion seciion thats buy hammers selected dozen pieces -in brass flat stock make switch leaves Arriving back shop cut brass 3-in long pieces stacked groups 10 drilled through stack near end #6 x -in slotted-head brass ma chine screws 141 holes switches drilled Plexiglasthree switch assembly brass wire hot switch contact threaded through two /6 holes remaining #6 hole mounting switch leaf face board brass wire feeds through two / holes twisted backside soldered white wire running its assigned channel hole circuit board #6 screws tied together long piece brass wire wrapped once around screw backside secured nut long wire becomes buss ground switches connected main circuit board - soldered May 1990 37 Close-up circuit boardthe brain frequency controi board aiarm system driver transistor shown instailed just beiow top left board mounting screw moisture-proof Plexiglas box encioses entire circuit board Note bag desiccant pretty happy progress until realized 98 solder joints go half itsy bitsy Faint heart neer won fair maiden muttered began measuring gutting stripping end 49 pieces 22-gauge white stranded wire become cen tral nervous system little monster cut wires plenty long could trim off excess before soldering switch end soldered first white wire hole num ber 11 circuit board wrapped switch end around hot switch ter Continued page 159 brass screws hoiding ieaf switches Plexiglas board interconnected brass bus wire hot contacts can seen under switch icaves wires run ning circuit board dry transfer numerals aie protected polyurethane spray RA EO CON T ROL AIR P LAN ES CARS S NS DEALERS S FACTURERS EARLY RESERVATIONS INSURE CHOICE AREAS OUTDOOR FLYING DEMOS---INDOOR BOAT POND---CAR TRACK SWAP TABLES PRIZES ITE CONCESSIONS IC MODEL DISPLAY minal channel 11 slack re moved before soldering After installing other 47 white wires similar manner whew dressed bundles near circuit board secured bun dles small cable ties rang out wire Radio Shack digital volt meter Theyre paying commis sion Things looking up wasnt out woods yet Thinking about convenient would guys field way know ing channel pin removing pinboard realized dry trans fer numerals obvious answer So off local stationers went way began think losing grip because hadnt touched piece balsa almost three days Anyway black numerals clear Plexiglas looks great Theyre easy apply permanent protected coat polyurethane spray Another club member volunteered fur nish metal enclosure pinboard measured 26 high 60 long 4 deep complete hasp could lock box hope some Little League ballfield somewhere isnt missing its circuitbreaker box spray painted box indoor/outdoor K-Mart white enamel $137 canno cutting corners Continued page 163 Compendium CG-325 Aristo-Craft HiTec Multi Charge-A-Matic $9995 CG-300A AC/DC Converter $5995 units imported Polks Model Craft Hobbies Inc 346 Bergen Ave Jersey City NJ 07304 tel 1-800-225-POLK Oops typo managed slip April col umn page 36 first column about halfway down Answer Question 1 said characteristic voltage lead-acid cell 15 volts Wrong Everybody knows really 22 volts Sorry about too should have caught RMcM responding advertIsers mention reed about ModelAviatlon PEAK 4-28CELLSI EASY HOOKUP LCD READOUT SEE JAN 90 RCM $125 UPS Prepaid Tx Ree add 6% tax SEND SASE FOR BROCHURE DETECTOR ASTRO FLIGHT t12 ASTRO FLIGHT tUS RESISTIVE-TYPE CHARGERS AERO ELECTRONICS RT 6 BOX 54J AUSTIN TX 78737 512 2883220 7-9ptn ASOR5 SOOCr lAfl AD SDVO 5~DITIAI TUCY itOSOS SOD TDCY OACE ACJOSTOS2 TOACOD55DD OUfl EASt SALUT1c5 1150 301 5T BOACCYC D12Zt5 INSTAILATICII PACKACE S.1 noS AAAiA4d uinuu rurnurmang oyuium TOP PERFORMANCE K&B ENGINES AirgdaneMarine K&B FUELSK&B GLOW PLUGS 9 Blends4 ChoIces Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN KAB SUPER FOXY THINNER K&B SUPER FOXY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS May 1990 159 shrink tubing Youll have made substitute plug works better original Project 1991/Slate Continued page 37THE TAILGEAR TAThU NJP1-8mUT ASSDMX FOAM CORE FLOATS FOR AIRPLANES AND HELICOPTERS V HULL DESIGN FLOAT PLANS AND KITS FOR 4 OUND AIRPLANES AND READY TO MOUNT FLOATS FOR 4 OUND HELICOPTERS SEND SASE FOR CATALOG SHEETS KiROlIER R/C PRODUCTS INC • SHUPIELD WAY CLARK NJ 07066 014e% ig ~O LENTY OF FREE PARKING MARC SHOW MID ATLANTIC RADIO CONTROL JUNE 2 AND 3 1990 Saturday 9 am 5 pm Sunday- 10 am to4pm MARYLAND STATE FAIR GROUNDS TIMONIUM MARYLAND Sponsored THE RADIO CONTROL MODELERS OF BALTIMORE \\ YORK ROAB// g#ioNIuM/ * J\ PAIUOROIJNOS 1IUONNJU no N ~UALTIMORES -IjO Project 1991/Slate Continued page 159 board best Having demonstrated great zeal seminonstop labor have regular job too sub-sub-subassemblies reduced just two subs new freq-out board ready bench testing thats electronic talk test flying robbed clothespin bag installed pin switch set bench power sup ply 5V hooked board turned Wala alarm answered efforts one-second beep re moved pin got shorter beep Replac ing gave another short beep Gaining confidence removed another pin skipped six channels removed another skipped six took Aha Sweet success alarm sounded continuously until re placed three pins causing 31M What fun next half hour spent creating 31M situations heretofore un heard planet mounted circuit board Plex iglas using stand-offs enclosed along bag desiccant Plexiglas box box affixed main board clear silicone makes water proof dustproof removable installed pinboard metal enclo sure using 1420 carriage bolts fender washers SWAP SHOP $10 FULL TABLE PER DAY NO DEALERS PLEASE Pre-Registration CALL WAYNE MELLOR 301-788-3742 Power pinboard supplied four 4-amp D-size Ni-Cds solar panel constructed mounted roof above freq-out board supplies 40 mil liamps charging current seven volts 48-volt battery pack bright sun system recharging seems ade quate Another solar cell can always added winter needed microswitch mounted corner metal enclosure turns system lid opened use shuts off lid closed pin happens missing loosely installed system powered up alarm will sound until pins place feature pre vents false indications 3IMs during course flying day exactly 830 am perfect Sunday morning arrived flying field mounted new pnboard Viewing board opened ready use sort like looking south end north bound turkey pilots came out fly day happy contribute opinions too board well ac cepted good time little routine maintenance new freq-out board should last long time need now couple hundred new dualconversion narrow-band receivers well really ready 1991 Im happy report guys getting ready new RC era though pain pocketContinued page 164 FOR INFORMATION CONTACT MARC DIRECTORS JOHN KIRK 912 Cromwell Bridge Road Towson MD 21204 301-825-8138 STACY PASS 301-484-9139 PRODUCTS PORTHE Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes * Headers uri Mufflers Expansion Mufflers copter Ball Mufflers ialized Exhaust Systems UnsurpassA VorAsn 27 *35000 31 $38000 34 $40000 37 $43000 42 $45000 Engines Complete Nothing Buy Now can own Sachs little $250 now have new 20 & 24 light weight spring start Sachs add *50 tor throttlecoupled spark edvance TG MFG 201 427-3845 857 HIgh Mtn Rd N Haledon N 07508 May1990 163 Sachs Doimar EnginesNew Torque Customized TOMount Only 100% SACKS Engine PreBuilt MV-i Typhoon * Designed Ron Chidgey *1 000/o Gator RIG Products Components wing/stab tubes & adjusters canopy & cowl * 1000/a built up construction precision jigs * Bob Violetts Magnalite GB 125 used formers * Satisfaction Guaranteed WOODORAINS INC Rt 9 Box 122 Gumming GA 30130 404-889-4758 Tim Megan Richardson Ga Residents Add 6% Sales Tax HIGH QUALITY ULTRA SWITCH HARNESS Gold contacts inside switch AJI connectors manufactured Futaba Ultra low profile actuator Positive lock Mounting simply requires drill ing 1/4 inch hole * 100% tested custom cable lengths availbie upon request minimal cost ULTRA SWITCH HARNESS $1995 PLUS $250 SHIPPING & HANDLING Custom Tronics new company dedicated solely manufacture electronic prod ucts custom-designed gadgetry RC modeler offering system interested clubs Send stamped pread dressed business size # 11 envelope Cus tom Tronics PO Box 6151 Katy TX 77491 Telephone 1-713/855-6677 envelope will also receive first edition catalog companys brand-new product linefree RC Aerobatics/Van Putte Continued page 41 best pilot cannot win team trials inade quate airplane Am feeling properly chastised really since t still dont think biplane will ever truly competitive Pattern really believe biplanes aerodynamically inferior monoplanes mentioned March column another part reason prejudice will very hard convince some judges biplane can really perform Pattern maneuvers well judge team selection finals first impression Tonys Fyg-Leaf was trying make statement con vince airplane could fly maneu vers described rule book force myself ohjective believe t successful Tony earned scores gave him judge notable excep tion scores generally low relative rest judges However scores suddenly high relative rest judges Tonys biplane flew judge liked bi planes Boy cant wait get some mail biplane controversy RC Giant Scale/de Vries Continued page 43 tail surfaces looked rather small enlarged regain same areas Senior Kadet Bob used 45 power tate la mented Kadet figured new semiscale Spirit might need go installed Fox 60 uncovered form engine spinner wheels resulting model weighs 6 lb Bob estimates itll tip scales nine pounds ready fly aluminum Mono Kote covering Bob Hansons Spirit St Louis striking semiscale Giant No would ever imagine its basically Sig Senior Kadet price three-view bit balsa ply hes pro duced outstanding Scale model Hes commended skill insight Back next month RC Electrics/Kopski Continued page 45 may have missed col umn dealt differences between two cat egories speed controls frame-rate high-rate designs column showed total power system efficiency can dramatically influenced types used particular test results presented clearly show high-rate technology way goby big marginin applications speed control truly used way What mean have plane flown speed control controlling speed throughout flight opposed being used on/off device youre much better off avoid ing frame-rate designs sounds interest go find copy December 89 issue Related columns October 89 Janu ary 90 issues Other recent reader reaction includes varied comments BEC battery eliminator cir cuits topic also discussed recent columns BEC products use motor battery provide operating voltage receiver/servo system Aircraft versions intended automatically shut down motor still enough battery reserve safely run receiver Reader comments BEC mixed Several wrote expressing satisfaction BEC prod uct theyre using others quite oppo site say latter case crashed planes rea son negative reaction reader partic ular cautioned about using some RC car controls planesbecause BEC designs may al low flight-time margin very successful BEC-equipped product popular Futaha Elec tric receiver receiver also includes builtin frame-rate speed control recommendation dont know sure BEC product works well air plane dont use Personally Im staying separate receiver batteries speed controls now Another topic interest concern has 164 Model Aviation PLUS SIePP WJG & HANDLING Satisfaction Guaranteed SH-710 Pkg 24-$2 95 EAv HINEE THE HIGH-TECH HINGE DESIGNED FOR THE CYANOACRYLATE AGE Easier install other hinge No gouging picking messy epoxies Simply cut single knife slot hinge slide hinges place apply few drops favorite CA glue youre done SUPER FAST SUPER EASY SUPER STRONG 74e e4t /a9e4 /oa MFG CO INC.401-7 So Front St.Montezuma IA 50171 23-5154 0- SUPERTANKS & SUPERMUFFLERS ZINGER WOOD PROPS GIANT SCALE RIO PLANS UJ RA RT NEODESHA KS 66757 316325-2821 DEALERS CALL SEND $100 FOR COMPLETE CATALOG
Edition: Model Aviation - 1990/05
Page Numbers: 36, 37, 159, 163, 164
- short beep pin removed lets know its safe fly alarm stays signifies 31M situation Replace pin wait until someone returns transmitter impound area try again See text address supplier brain frequency pinboard mounted its metal lockable enclosure surface-mounted switches make board easy maintain pinboard made Plexiglas brass leaf switches attached directly circuit board attached stand-offs vis ible wiring circuit board serve reminder important frequency control 36 Model Aviation l everyone flying field has new dualconversion narrowband recievers updated frequency control pinboard could help avert possible disaster Making clever use brain detailed July 1989 issue MA board can detect over 120 31M situations channels 11 through 58 U Richard Slate IF THE FLIERS Ive talked indi cation RC modelers consider tran sition 1991 narrow-band dualconversion radio botherif downright traumatic seems fre quency control pinboards hereinafter named freq-out boards because inability cover new channels soon destined join over hill gang OWBAM old wideband AM ra dios well freq-out board club field example indicated 31M third order intermodulation situations even-numbered channels 38 through 56 Converting handle new frequencies adding diodes already has 100 would have created virtual Pandoras box Yet something done bring up par just werent sure what recent club meeting led workshop called What 1991 Radio ques tion everyones mind What now suggestion purchase al ready assembled tested CMOS state-of the-art whammie-jammie freq-out board brain SIM Custom Kentucky see M Dennis Tiernys article Whistle Blows Dont Fly July 1989 issue Model Aviation What genuinely splendid idea told arrives meaning can design new pinboard mount suggests volunteers may cost few bucks tested trying weasel out Save re ceipts response Rumor has bureaucratic system club moves along Mach II thats rumor has never clocked ordered board arrived due course almost ready installed marvel technology capable sort ing out over 120 31M situations channels 11 through 58 After looking board over could plainly see design cri teria threefold top quality simplicity now Piece-o-cake says gan plan wipe out easy subproj ects first install alarm system cluded circuit board neat little wiring diagram what to make buzzer buzz Fifteen minutes later few bucks poorer what needed local Radio Shack part NPN transistor type 2N2222 eas ily soldered place after drilling three strategically located holes left side board per instructions other part alarm buzzer itself RS part number provided Hookup basic since red black wire RC modelers know about red black wires soldered long red long black wire V oard locations 48-volt battery box connections decided make pinboard itself Plexiglas Plexiglas practically unbreak able looks good workable doesnt need painting waterproof good insula tor its bad points decided build own leaf switches channel switch components should made same material deter corrosion re flected dunking pencil glass ice water cool off Brass Zounds Leaves -in brass could used switches Brass wire would work hot contacts brass buss wire common leaves together Add 632 x /2-in brass machine screws mount switch leaves almost done decided use white hookup wire switch-to-circuit board connections Brass glassmodern no Off went local hardware store Ralphs has good K&S brass sec tion also has string percussion seciion thats buy hammers selected dozen pieces -in brass flat stock make switch leaves Arriving back shop cut brass 3-in long pieces stacked groups 10 drilled through stack near end #6 x -in slotted-head brass ma chine screws 141 holes switches drilled Plexiglasthree switch assembly brass wire hot switch contact threaded through two /6 holes remaining #6 hole mounting switch leaf face board brass wire feeds through two / holes twisted backside soldered white wire running its assigned channel hole circuit board #6 screws tied together long piece brass wire wrapped once around screw backside secured nut long wire becomes buss ground switches connected main circuit board - soldered May 1990 37 Close-up circuit boardthe brain frequency controi board aiarm system driver transistor shown instailed just beiow top left board mounting screw moisture-proof Plexiglas box encioses entire circuit board Note bag desiccant pretty happy progress until realized 98 solder joints go half itsy bitsy Faint heart neer won fair maiden muttered began measuring gutting stripping end 49 pieces 22-gauge white stranded wire become cen tral nervous system little monster cut wires plenty long could trim off excess before soldering switch end soldered first white wire hole num ber 11 circuit board wrapped switch end around hot switch ter Continued page 159 brass screws hoiding ieaf switches Plexiglas board interconnected brass bus wire hot contacts can seen under switch icaves wires run ning circuit board dry transfer numerals aie protected polyurethane spray RA EO CON T ROL AIR P LAN ES CARS S NS DEALERS S FACTURERS EARLY RESERVATIONS INSURE CHOICE AREAS OUTDOOR FLYING DEMOS---INDOOR BOAT POND---CAR TRACK SWAP TABLES PRIZES ITE CONCESSIONS IC MODEL DISPLAY minal channel 11 slack re moved before soldering After installing other 47 white wires similar manner whew dressed bundles near circuit board secured bun dles small cable ties rang out wire Radio Shack digital volt meter Theyre paying commis sion Things looking up wasnt out woods yet Thinking about convenient would guys field way know ing channel pin removing pinboard realized dry trans fer numerals obvious answer So off local stationers went way began think losing grip because hadnt touched piece balsa almost three days Anyway black numerals clear Plexiglas looks great Theyre easy apply permanent protected coat polyurethane spray Another club member volunteered fur nish metal enclosure pinboard measured 26 high 60 long 4 deep complete hasp could lock box hope some Little League ballfield somewhere isnt missing its circuitbreaker box spray painted box indoor/outdoor K-Mart white enamel $137 canno cutting corners Continued page 163 Compendium CG-325 Aristo-Craft HiTec Multi Charge-A-Matic $9995 CG-300A AC/DC Converter $5995 units imported Polks Model Craft Hobbies Inc 346 Bergen Ave Jersey City NJ 07304 tel 1-800-225-POLK Oops typo managed slip April col umn page 36 first column about halfway down Answer Question 1 said characteristic voltage lead-acid cell 15 volts Wrong Everybody knows really 22 volts Sorry about too should have caught RMcM responding advertIsers mention reed about ModelAviatlon PEAK 4-28CELLSI EASY HOOKUP LCD READOUT SEE JAN 90 RCM $125 UPS Prepaid Tx Ree add 6% tax SEND SASE FOR BROCHURE DETECTOR ASTRO FLIGHT t12 ASTRO FLIGHT tUS RESISTIVE-TYPE CHARGERS AERO ELECTRONICS RT 6 BOX 54J AUSTIN TX 78737 512 2883220 7-9ptn ASOR5 SOOCr lAfl AD SDVO 5~DITIAI TUCY itOSOS SOD TDCY OACE ACJOSTOS2 TOACOD55DD OUfl EASt SALUT1c5 1150 301 5T BOACCYC D12Zt5 INSTAILATICII PACKACE S.1 noS AAAiA4d uinuu rurnurmang oyuium TOP PERFORMANCE K&B ENGINES AirgdaneMarine K&B FUELSK&B GLOW PLUGS 9 Blends4 ChoIces Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN KAB SUPER FOXY THINNER K&B SUPER FOXY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS May 1990 159 shrink tubing Youll have made substitute plug works better original Project 1991/Slate Continued page 37THE TAILGEAR TAThU NJP1-8mUT ASSDMX FOAM CORE FLOATS FOR AIRPLANES AND HELICOPTERS V HULL DESIGN FLOAT PLANS AND KITS FOR 4 OUND AIRPLANES AND READY TO MOUNT FLOATS FOR 4 OUND HELICOPTERS SEND SASE FOR CATALOG SHEETS KiROlIER R/C PRODUCTS INC • SHUPIELD WAY CLARK NJ 07066 014e% ig ~O LENTY OF FREE PARKING MARC SHOW MID ATLANTIC RADIO CONTROL JUNE 2 AND 3 1990 Saturday 9 am 5 pm Sunday- 10 am to4pm MARYLAND STATE FAIR GROUNDS TIMONIUM MARYLAND Sponsored THE RADIO CONTROL MODELERS OF BALTIMORE \\ YORK ROAB// g#ioNIuM/ * J\ PAIUOROIJNOS 1IUONNJU no N ~UALTIMORES -IjO Project 1991/Slate Continued page 159 board best Having demonstrated great zeal seminonstop labor have regular job too sub-sub-subassemblies reduced just two subs new freq-out board ready bench testing thats electronic talk test flying robbed clothespin bag installed pin switch set bench power sup ply 5V hooked board turned Wala alarm answered efforts one-second beep re moved pin got shorter beep Replac ing gave another short beep Gaining confidence removed another pin skipped six channels removed another skipped six took Aha Sweet success alarm sounded continuously until re placed three pins causing 31M What fun next half hour spent creating 31M situations heretofore un heard planet mounted circuit board Plex iglas using stand-offs enclosed along bag desiccant Plexiglas box box affixed main board clear silicone makes water proof dustproof removable installed pinboard metal enclo sure using 1420 carriage bolts fender washers SWAP SHOP $10 FULL TABLE PER DAY NO DEALERS PLEASE Pre-Registration CALL WAYNE MELLOR 301-788-3742 Power pinboard supplied four 4-amp D-size Ni-Cds solar panel constructed mounted roof above freq-out board supplies 40 mil liamps charging current seven volts 48-volt battery pack bright sun system recharging seems ade quate Another solar cell can always added winter needed microswitch mounted corner metal enclosure turns system lid opened use shuts off lid closed pin happens missing loosely installed system powered up alarm will sound until pins place feature pre vents false indications 3IMs during course flying day exactly 830 am perfect Sunday morning arrived flying field mounted new pnboard Viewing board opened ready use sort like looking south end north bound turkey pilots came out fly day happy contribute opinions too board well ac cepted good time little routine maintenance new freq-out board should last long time need now couple hundred new dualconversion narrow-band receivers well really ready 1991 Im happy report guys getting ready new RC era though pain pocketContinued page 164 FOR INFORMATION CONTACT MARC DIRECTORS JOHN KIRK 912 Cromwell Bridge Road Towson MD 21204 301-825-8138 STACY PASS 301-484-9139 PRODUCTS PORTHE Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes * Headers uri Mufflers Expansion Mufflers copter Ball Mufflers ialized Exhaust Systems UnsurpassA VorAsn 27 *35000 31 $38000 34 $40000 37 $43000 42 $45000 Engines Complete Nothing Buy Now can own Sachs little $250 now have new 20 & 24 light weight spring start Sachs add *50 tor throttlecoupled spark edvance TG MFG 201 427-3845 857 HIgh Mtn Rd N Haledon N 07508 May1990 163 Sachs Doimar EnginesNew Torque Customized TOMount Only 100% SACKS Engine PreBuilt MV-i Typhoon * Designed Ron Chidgey *1 000/o Gator RIG Products Components wing/stab tubes & adjusters canopy & cowl * 1000/a built up construction precision jigs * Bob Violetts Magnalite GB 125 used formers * Satisfaction Guaranteed WOODORAINS INC Rt 9 Box 122 Gumming GA 30130 404-889-4758 Tim Megan Richardson Ga Residents Add 6% Sales Tax HIGH QUALITY ULTRA SWITCH HARNESS Gold contacts inside switch AJI connectors manufactured Futaba Ultra low profile actuator Positive lock Mounting simply requires drill ing 1/4 inch hole * 100% tested custom cable lengths availbie upon request minimal cost ULTRA SWITCH HARNESS $1995 PLUS $250 SHIPPING & HANDLING Custom Tronics new company dedicated solely manufacture electronic prod ucts custom-designed gadgetry RC modeler offering system interested clubs Send stamped pread dressed business size # 11 envelope Cus tom Tronics PO Box 6151 Katy TX 77491 Telephone 1-713/855-6677 envelope will also receive first edition catalog companys brand-new product linefree RC Aerobatics/Van Putte Continued page 41 best pilot cannot win team trials inade quate airplane Am feeling properly chastised really since t still dont think biplane will ever truly competitive Pattern really believe biplanes aerodynamically inferior monoplanes mentioned March column another part reason prejudice will very hard convince some judges biplane can really perform Pattern maneuvers well judge team selection finals first impression Tonys Fyg-Leaf was trying make statement con vince airplane could fly maneu vers described rule book force myself ohjective believe t successful Tony earned scores gave him judge notable excep tion scores generally low relative rest judges However scores suddenly high relative rest judges Tonys biplane flew judge liked bi planes Boy cant wait get some mail biplane controversy RC Giant Scale/de Vries Continued page 43 tail surfaces looked rather small enlarged regain same areas Senior Kadet Bob used 45 power tate la mented Kadet figured new semiscale Spirit might need go installed Fox 60 uncovered form engine spinner wheels resulting model weighs 6 lb Bob estimates itll tip scales nine pounds ready fly aluminum Mono Kote covering Bob Hansons Spirit St Louis striking semiscale Giant No would ever imagine its basically Sig Senior Kadet price three-view bit balsa ply hes pro duced outstanding Scale model Hes commended skill insight Back next month RC Electrics/Kopski Continued page 45 may have missed col umn dealt differences between two cat egories speed controls frame-rate high-rate designs column showed total power system efficiency can dramatically influenced types used particular test results presented clearly show high-rate technology way goby big marginin applications speed control truly used way What mean have plane flown speed control controlling speed throughout flight opposed being used on/off device youre much better off avoid ing frame-rate designs sounds interest go find copy December 89 issue Related columns October 89 Janu ary 90 issues Other recent reader reaction includes varied comments BEC battery eliminator cir cuits topic also discussed recent columns BEC products use motor battery provide operating voltage receiver/servo system Aircraft versions intended automatically shut down motor still enough battery reserve safely run receiver Reader comments BEC mixed Several wrote expressing satisfaction BEC prod uct theyre using others quite oppo site say latter case crashed planes rea son negative reaction reader partic ular cautioned about using some RC car controls planesbecause BEC designs may al low flight-time margin very successful BEC-equipped product popular Futaha Elec tric receiver receiver also includes builtin frame-rate speed control recommendation dont know sure BEC product works well air plane dont use Personally Im staying separate receiver batteries speed controls now Another topic interest concern has 164 Model Aviation PLUS SIePP WJG & HANDLING Satisfaction Guaranteed SH-710 Pkg 24-$2 95 EAv HINEE THE HIGH-TECH HINGE DESIGNED FOR THE CYANOACRYLATE AGE Easier install other hinge No gouging picking messy epoxies Simply cut single knife slot hinge slide hinges place apply few drops favorite CA glue youre done SUPER FAST SUPER EASY SUPER STRONG 74e e4t /a9e4 /oa MFG CO INC.401-7 So Front St.Montezuma IA 50171 23-5154 0- SUPERTANKS & SUPERMUFFLERS ZINGER WOOD PROPS GIANT SCALE RIO PLANS UJ RA RT NEODESHA KS 66757 316325-2821 DEALERS CALL SEND $100 FOR COMPLETE CATALOG
Edition: Model Aviation - 1990/05
Page Numbers: 36, 37, 159, 163, 164
- short beep pin removed lets know its safe fly alarm stays signifies 31M situation Replace pin wait until someone returns transmitter impound area try again See text address supplier brain frequency pinboard mounted its metal lockable enclosure surface-mounted switches make board easy maintain pinboard made Plexiglas brass leaf switches attached directly circuit board attached stand-offs vis ible wiring circuit board serve reminder important frequency control 36 Model Aviation l everyone flying field has new dualconversion narrowband recievers updated frequency control pinboard could help avert possible disaster Making clever use brain detailed July 1989 issue MA board can detect over 120 31M situations channels 11 through 58 U Richard Slate IF THE FLIERS Ive talked indi cation RC modelers consider tran sition 1991 narrow-band dualconversion radio botherif downright traumatic seems fre quency control pinboards hereinafter named freq-out boards because inability cover new channels soon destined join over hill gang OWBAM old wideband AM ra dios well freq-out board club field example indicated 31M third order intermodulation situations even-numbered channels 38 through 56 Converting handle new frequencies adding diodes already has 100 would have created virtual Pandoras box Yet something done bring up par just werent sure what recent club meeting led workshop called What 1991 Radio ques tion everyones mind What now suggestion purchase al ready assembled tested CMOS state-of the-art whammie-jammie freq-out board brain SIM Custom Kentucky see M Dennis Tiernys article Whistle Blows Dont Fly July 1989 issue Model Aviation What genuinely splendid idea told arrives meaning can design new pinboard mount suggests volunteers may cost few bucks tested trying weasel out Save re ceipts response Rumor has bureaucratic system club moves along Mach II thats rumor has never clocked ordered board arrived due course almost ready installed marvel technology capable sort ing out over 120 31M situations channels 11 through 58 After looking board over could plainly see design cri teria threefold top quality simplicity now Piece-o-cake says gan plan wipe out easy subproj ects first install alarm system cluded circuit board neat little wiring diagram what to make buzzer buzz Fifteen minutes later few bucks poorer what needed local Radio Shack part NPN transistor type 2N2222 eas ily soldered place after drilling three strategically located holes left side board per instructions other part alarm buzzer itself RS part number provided Hookup basic since red black wire RC modelers know about red black wires soldered long red long black wire V oard locations 48-volt battery box connections decided make pinboard itself Plexiglas Plexiglas practically unbreak able looks good workable doesnt need painting waterproof good insula tor its bad points decided build own leaf switches channel switch components should made same material deter corrosion re flected dunking pencil glass ice water cool off Brass Zounds Leaves -in brass could used switches Brass wire would work hot contacts brass buss wire common leaves together Add 632 x /2-in brass machine screws mount switch leaves almost done decided use white hookup wire switch-to-circuit board connections Brass glassmodern no Off went local hardware store Ralphs has good K&S brass sec tion also has string percussion seciion thats buy hammers selected dozen pieces -in brass flat stock make switch leaves Arriving back shop cut brass 3-in long pieces stacked groups 10 drilled through stack near end #6 x -in slotted-head brass ma chine screws 141 holes switches drilled Plexiglasthree switch assembly brass wire hot switch contact threaded through two /6 holes remaining #6 hole mounting switch leaf face board brass wire feeds through two / holes twisted backside soldered white wire running its assigned channel hole circuit board #6 screws tied together long piece brass wire wrapped once around screw backside secured nut long wire becomes buss ground switches connected main circuit board - soldered May 1990 37 Close-up circuit boardthe brain frequency controi board aiarm system driver transistor shown instailed just beiow top left board mounting screw moisture-proof Plexiglas box encioses entire circuit board Note bag desiccant pretty happy progress until realized 98 solder joints go half itsy bitsy Faint heart neer won fair maiden muttered began measuring gutting stripping end 49 pieces 22-gauge white stranded wire become cen tral nervous system little monster cut wires plenty long could trim off excess before soldering switch end soldered first white wire hole num ber 11 circuit board wrapped switch end around hot switch ter Continued page 159 brass screws hoiding ieaf switches Plexiglas board interconnected brass bus wire hot contacts can seen under switch icaves wires run ning circuit board dry transfer numerals aie protected polyurethane spray RA EO CON T ROL AIR P LAN ES CARS S NS DEALERS S FACTURERS EARLY RESERVATIONS INSURE CHOICE AREAS OUTDOOR FLYING DEMOS---INDOOR BOAT POND---CAR TRACK SWAP TABLES PRIZES ITE CONCESSIONS IC MODEL DISPLAY minal channel 11 slack re moved before soldering After installing other 47 white wires similar manner whew dressed bundles near circuit board secured bun dles small cable ties rang out wire Radio Shack digital volt meter Theyre paying commis sion Things looking up wasnt out woods yet Thinking about convenient would guys field way know ing channel pin removing pinboard realized dry trans fer numerals obvious answer So off local stationers went way began think losing grip because hadnt touched piece balsa almost three days Anyway black numerals clear Plexiglas looks great Theyre easy apply permanent protected coat polyurethane spray Another club member volunteered fur nish metal enclosure pinboard measured 26 high 60 long 4 deep complete hasp could lock box hope some Little League ballfield somewhere isnt missing its circuitbreaker box spray painted box indoor/outdoor K-Mart white enamel $137 canno cutting corners Continued page 163 Compendium CG-325 Aristo-Craft HiTec Multi Charge-A-Matic $9995 CG-300A AC/DC Converter $5995 units imported Polks Model Craft Hobbies Inc 346 Bergen Ave Jersey City NJ 07304 tel 1-800-225-POLK Oops typo managed slip April col umn page 36 first column about halfway down Answer Question 1 said characteristic voltage lead-acid cell 15 volts Wrong Everybody knows really 22 volts Sorry about too should have caught RMcM responding advertIsers mention reed about ModelAviatlon PEAK 4-28CELLSI EASY HOOKUP LCD READOUT SEE JAN 90 RCM $125 UPS Prepaid Tx Ree add 6% tax SEND SASE FOR BROCHURE DETECTOR ASTRO FLIGHT t12 ASTRO FLIGHT tUS RESISTIVE-TYPE CHARGERS AERO ELECTRONICS RT 6 BOX 54J AUSTIN TX 78737 512 2883220 7-9ptn ASOR5 SOOCr lAfl AD SDVO 5~DITIAI TUCY itOSOS SOD TDCY OACE ACJOSTOS2 TOACOD55DD OUfl EASt SALUT1c5 1150 301 5T BOACCYC D12Zt5 INSTAILATICII PACKACE S.1 noS AAAiA4d uinuu rurnurmang oyuium TOP PERFORMANCE K&B ENGINES AirgdaneMarine K&B FUELSK&B GLOW PLUGS 9 Blends4 ChoIces Matched Finish System BEST APPEARANCE K&B FIBERGLASS CLOTH K&B Micro-Balloons FILLER K&B SUPER POXY RESIN KAB SUPER FOXY THINNER K&B SUPER FOXY PRIMER K&B SUPER POXY PAINT K&B MIXING CUPS May 1990 159 shrink tubing Youll have made substitute plug works better original Project 1991/Slate Continued page 37THE TAILGEAR TAThU NJP1-8mUT ASSDMX FOAM CORE FLOATS FOR AIRPLANES AND HELICOPTERS V HULL DESIGN FLOAT PLANS AND KITS FOR 4 OUND AIRPLANES AND READY TO MOUNT FLOATS FOR 4 OUND HELICOPTERS SEND SASE FOR CATALOG SHEETS KiROlIER R/C PRODUCTS INC • SHUPIELD WAY CLARK NJ 07066 014e% ig ~O LENTY OF FREE PARKING MARC SHOW MID ATLANTIC RADIO CONTROL JUNE 2 AND 3 1990 Saturday 9 am 5 pm Sunday- 10 am to4pm MARYLAND STATE FAIR GROUNDS TIMONIUM MARYLAND Sponsored THE RADIO CONTROL MODELERS OF BALTIMORE \\ YORK ROAB// g#ioNIuM/ * J\ PAIUOROIJNOS 1IUONNJU no N ~UALTIMORES -IjO Project 1991/Slate Continued page 159 board best Having demonstrated great zeal seminonstop labor have regular job too sub-sub-subassemblies reduced just two subs new freq-out board ready bench testing thats electronic talk test flying robbed clothespin bag installed pin switch set bench power sup ply 5V hooked board turned Wala alarm answered efforts one-second beep re moved pin got shorter beep Replac ing gave another short beep Gaining confidence removed another pin skipped six channels removed another skipped six took Aha Sweet success alarm sounded continuously until re placed three pins causing 31M What fun next half hour spent creating 31M situations heretofore un heard planet mounted circuit board Plex iglas using stand-offs enclosed along bag desiccant Plexiglas box box affixed main board clear silicone makes water proof dustproof removable installed pinboard metal enclo sure using 1420 carriage bolts fender washers SWAP SHOP $10 FULL TABLE PER DAY NO DEALERS PLEASE Pre-Registration CALL WAYNE MELLOR 301-788-3742 Power pinboard supplied four 4-amp D-size Ni-Cds solar panel constructed mounted roof above freq-out board supplies 40 mil liamps charging current seven volts 48-volt battery pack bright sun system recharging seems ade quate Another solar cell can always added winter needed microswitch mounted corner metal enclosure turns system lid opened use shuts off lid closed pin happens missing loosely installed system powered up alarm will sound until pins place feature pre vents false indications 3IMs during course flying day exactly 830 am perfect Sunday morning arrived flying field mounted new pnboard Viewing board opened ready use sort like looking south end north bound turkey pilots came out fly day happy contribute opinions too board well ac cepted good time little routine maintenance new freq-out board should last long time need now couple hundred new dualconversion narrow-band receivers well really ready 1991 Im happy report guys getting ready new RC era though pain pocketContinued page 164 FOR INFORMATION CONTACT MARC DIRECTORS JOHN KIRK 912 Cromwell Bridge Road Towson MD 21204 301-825-8138 STACY PASS 301-484-9139 PRODUCTS PORTHE Complete Line Exhaust Systems * Tuned Pipes led Tuned Pipes * Headers uri Mufflers Expansion Mufflers copter Ball Mufflers ialized Exhaust Systems UnsurpassA VorAsn 27 *35000 31 $38000 34 $40000 37 $43000 42 $45000 Engines Complete Nothing Buy Now can own Sachs little $250 now have new 20 & 24 light weight spring start Sachs add *50 tor throttlecoupled spark edvance TG MFG 201 427-3845 857 HIgh Mtn Rd N Haledon N 07508 May1990 163 Sachs Doimar EnginesNew Torque Customized TOMount Only 100% SACKS Engine PreBuilt MV-i Typhoon * Designed Ron Chidgey *1 000/o Gator RIG Products Components wing/stab tubes & adjusters canopy & cowl * 1000/a built up construction precision jigs * Bob Violetts Magnalite GB 125 used formers * Satisfaction Guaranteed WOODORAINS INC Rt 9 Box 122 Gumming GA 30130 404-889-4758 Tim Megan Richardson Ga Residents Add 6% Sales Tax HIGH QUALITY ULTRA SWITCH HARNESS Gold contacts inside switch AJI connectors manufactured Futaba Ultra low profile actuator Positive lock Mounting simply requires drill ing 1/4 inch hole * 100% tested custom cable lengths availbie upon request minimal cost ULTRA SWITCH HARNESS $1995 PLUS $250 SHIPPING & HANDLING Custom Tronics new company dedicated solely manufacture electronic prod ucts custom-designed gadgetry RC modeler offering system interested clubs Send stamped pread dressed business size # 11 envelope Cus tom Tronics PO Box 6151 Katy TX 77491 Telephone 1-713/855-6677 envelope will also receive first edition catalog companys brand-new product linefree RC Aerobatics/Van Putte Continued page 41 best pilot cannot win team trials inade quate airplane Am feeling properly chastised really since t still dont think biplane will ever truly competitive Pattern really believe biplanes aerodynamically inferior monoplanes mentioned March column another part reason prejudice will very hard convince some judges biplane can really perform Pattern maneuvers well judge team selection finals first impression Tonys Fyg-Leaf was trying make statement con vince airplane could fly maneu vers described rule book force myself ohjective believe t successful Tony earned scores gave him judge notable excep tion scores generally low relative rest judges However scores suddenly high relative rest judges Tonys biplane flew judge liked bi planes Boy cant wait get some mail biplane controversy RC Giant Scale/de Vries Continued page 43 tail surfaces looked rather small enlarged regain same areas Senior Kadet Bob used 45 power tate la mented Kadet figured new semiscale Spirit might need go installed Fox 60 uncovered form engine spinner wheels resulting model weighs 6 lb Bob estimates itll tip scales nine pounds ready fly aluminum Mono Kote covering Bob Hansons Spirit St Louis striking semiscale Giant No would ever imagine its basically Sig Senior Kadet price three-view bit balsa ply hes pro duced outstanding Scale model Hes commended skill insight Back next month RC Electrics/Kopski Continued page 45 may have missed col umn dealt differences between two cat egories speed controls frame-rate high-rate designs column showed total power system efficiency can dramatically influenced types used particular test results presented clearly show high-rate technology way goby big marginin applications speed control truly used way What mean have plane flown speed control controlling speed throughout flight opposed being used on/off device youre much better off avoid ing frame-rate designs sounds interest go find copy December 89 issue Related columns October 89 Janu ary 90 issues Other recent reader reaction includes varied comments BEC battery eliminator cir cuits topic also discussed recent columns BEC products use motor battery provide operating voltage receiver/servo system Aircraft versions intended automatically shut down motor still enough battery reserve safely run receiver Reader comments BEC mixed Several wrote expressing satisfaction BEC prod uct theyre using others quite oppo site say latter case crashed planes rea son negative reaction reader partic ular cautioned about using some RC car controls planesbecause BEC designs may al low flight-time margin very successful BEC-equipped product popular Futaha Elec tric receiver receiver also includes builtin frame-rate speed control recommendation dont know sure BEC product works well air plane dont use Personally Im staying separate receiver batteries speed controls now Another topic interest concern has 164 Model Aviation PLUS SIePP WJG & HANDLING Satisfaction Guaranteed SH-710 Pkg 24-$2 95 EAv HINEE THE HIGH-TECH HINGE DESIGNED FOR THE CYANOACRYLATE AGE Easier install other hinge No gouging picking messy epoxies Simply cut single knife slot hinge slide hinges place apply few drops favorite CA glue youre done SUPER FAST SUPER EASY SUPER STRONG 74e e4t /a9e4 /oa MFG CO INC.401-7 So Front St.Montezuma IA 50171 23-5154 0- SUPERTANKS & SUPERMUFFLERS ZINGER WOOD PROPS GIANT SCALE RIO PLANS UJ RA RT NEODESHA KS 66757 316325-2821 DEALERS CALL SEND $100 FOR COMPLETE CATALOG
