Radio Contml Electrics Bob Kopski FROM good neighbors north comes first-time Electric success story Vic Walpole Ajax Ontario Vic visited 1983 KRC Electric Fly took lots pictures returned home try himself results seen accompanying photos plane Marks Models Wanderer 99 Vic bought model auction $12 proceeded some rework first outfitted Astro 05 Cobalt geared 24 1 Geist new small prop about l5A-in diameter 8-in pitch think Energy storage seven 12 Ah cells drain 19 amps All-up weight 4A lb Electric Elation immediateit flew right surprise Should fly Lets use information Vic supplied ap ply Rules Thumb Part Eight Electrics series April 1984 MA wing area 900 sq 625 sq ft 4A lbs wing loading 72 oz/ 625 about 115 oz/sq ft motor input-power about 7-8 volts x 19 amps about 140 watts Rule Thumb Power Cruise Weight lb x Wing Loading oz/sq ft 45 x 115 52 watts good ol all-around per formance Part Nine said double numberwhich 104 watts Vics ratio 140/52 about 27 No wonder flies Ill bet heck relief Vic know should fly Vic designed installation some flexibility could try some options substitute Keller 50/30 Cobalt direct-driving same propbut 14 cells 13 amps put weight 5 lb brought plane good launch height three four times per charge Vic reports best flight far mid-winter 23 minutes now tells us hes coming back again years Electric Flybut planesand four cameras time hes gonna slides B&W color prints video tape little Elation goes long way Congratulations Vic Now Oooops department Ive some reader response MA s Elec tric Series Part Nine May issue installment offered rather extensive table motor battery prop com binations known performance Well seems entry bit off second line table Astro 035 Im told motor best run five cells six 6 x 3 prop Evidently combination did list known have excessive current de mandmany amps indicated performance table gave away 035 now cant back up recheck Ill just pass update along same context received thanks Bernard Cawley Auburn WA Remember Part Seven Electric series flight time histograms variety Electrics hundreds hun dreds documented flights record ed others flight log books Let tell about very early days Electric en deavors successful flight infre quentand shortoccurrence constant struggle get something Elec tric air keep awhile Changing props gears batteries etc soon became very confusing began keeping notes too long time success became predictable routine notes began take form flight log Flight time increased dramatically trips field became much frequent model count increased Some same things kept changinglike props batteries information noted re sultPart Seven wasnt planned way just happened Anyway idea flight log spread among local fliers now several fellow club members keep log books thing common note-taking thats stopwatch keeping track flight time photos show some trans mitters watches attached interesting keep tabs flight times watches can also keep up minute motor battery stands very helpful information especially such power-spending mod els Aerobatics Flight times tend fairly consistent models can always judge should lin ing up grease notebooks pictured suggest several possible styles modeler uses small book model Most use book having designated sections vari ous planes Entries may vary person al preference like note date flight time routine entries anything special unusual Examples latter can include such things prop changes charging differences unusual weather conditions whatever Some folks 48 Model Aviation Electric Elation Thats first Eiectric ship gets grip airand goes Vicaipole Ajax Ontario Canada puts Keiier5o/30 motor Wanderer99 setout chiii December 1983 day see Eiectric stuff reai modei weighs about 51/2 ib Photo L beiow shows has great flying site wind blowing about 15-20 mph Photo R below shows motor/RC installation charging setup charger isa Robbe unitprobably automatic cutoff RC functions rudder elevator multi-step throttle contacts resistors fly both Electric wet power now keeping logs planes What started Out sort lab notebook has evolved both formativeand funaspect routine flying Fun what hobby about consider giving try decide yourself its funand usefulfor Now back stopwatches themselves As can see kind common stopwatch can used transmitters shown held place double-sticky-backed Velcro allows timepieces easily removed use other transmitters elsewhere Also method non-injurious trans mitter watch case surfaces use Radio Shack Hook-and-Loop Fastener Strips catalog No 64-2345 package four 1-in x 3-in fastener pairs plenty other proj ects such installing servos described Part Five Similar material available other sizes colors fabric sew ing stores Cut strip desired size scissors Clean surfaces youre going put fasteners wipe window cleaner alcohol install place sure locate watch its convenient operateand see Now can fly clock watchers same time Try sketching own flight histogram looks good share Continued page 144 Here-u varieTy iranammers ana flIght log books used Bobs local Electric filers Flight watches Include CL photo L R sports digital wristwatch minus strap classic windup Notebooks run cheaples good looseleaf types Keeping log book flights helps remember what worked what didnt Most filers like look back early experiences Mounting stopwatch transmitter can simple R small angie-bracket brass strip hobby shop bolted transmitter case Velcro hook-and ioop fastener stuck to watch case easy removal watch helps keep tabs battery charge No blow outs lost pipes nsightly ties clamps r neat appearance boats airplanes Fits 40 60 engines pipe 720 dia 800 dia Wt 135 oz ____________ inum components compression sealed silicone 0 rings ector comes extra 0 ring tional 0 rings may purchased sending self-addressed stamped envelope 50 0 ring ordertol al Payne Enterprises213 32G 1843 W Torrance Torrance CA 90501 Name_____________________________________ I Address___________________________________ ____________________________________________________________[v32][b195023037800]] Print legiblythis return label LEOS LASER *JR STICK World Aerobatic Champion Ideal Trainer Top Quality Epoxy Glass Fuse loge Cowl & Wheel Pants Ootstandog Balsa & Foam Co inum Landing Gear 72 Wing Spas Wing Aroo-1050 sq Foam Wing 90 Span Wing0 12 Moor Assembly Time Area 1440 sq inches Weiglss t 12 lbs BalsatoFnslsKt logineise 7513 Complete Step Step 95 struct ons m th P ctores US ght 16 20 lbs NM SHIPPING Eng ne 2 4 HP ect Sales Only COMING SOON $j 999ws * 4O&25 sizes PPINGTurboBD Trainer Direct Sales Only Canton OH 44707 Phone 216 4846810 484-4374 -1 AuQust 1984 49 Tuned Pipe$1400 plus $150 pootage CuauuuuLIuu handling eachl Manufacturers Quality Kits RO USH M Large Scale Engines NOW THERES QUICK AND EASY WAY OF CLEANING YOUR MODEL CRAFTS Super-K Model Cleaner Remaves fuel Residue di contact CUTS CLEANING TIME IN HALF Just spray model solvent pe soft cloth paper towel SIMPIE AS THATl Leaves craft showcase clean Wont bairn Paints Covdngs Ddes Cleor fast EmInates Work cleaning model Strong Professional jolity formula Great Model Craft Boots manes Helicopters Cleans Gently Protects delicate model DEALERS WANTED DOMESTIC & OVERSEAS WE EXPORT Hurry Have product shelves time Chnstmas guaranteed top seller Sugg retail $550 per gallon Contact us price structures ordering information Also ask about other SuperK products Model industry Are Manufacturers & Major kands Distributors Model Engines KIts Radios Accessoiles Kings Radio Control Hobbies International 3960 West 16th Ave Hialeoh Florida 33012 Phone 305 557-2024 EIERSII Ir-O-FIII off better- Glows IProteotivel Bendable PrImers J start thIs Season- Thinner snAccess using KIN-CRAFT Quality hit j - Dust Masks - Gatar Grip Contact Cement - Appilastor Kits Engine Clesnend Oil Kits Mberglsss Clo* Cloth II % 26 Tspenl4b6 Send aeff-ddresed staeupedeaveisp let free catalegue aMseeuats Custom Cut Cloth Any Lsngth Kin-Craft P41g Mi 2 Sex 481 MAimed KV4Z 101 1606 928-4 763 Apple Computer owners have TRS 80 Color Computer doubt program would function with out substantial modification way did home-computer owners know Kraft Systems Inc marketing super series joystick con trollers lot home computers arent cheap work well stick assemblies made Kraft K line transmitters think nice features few other manufacturers joysticks have twoaxis trim capability stick assembly provides Non-RC people amazed high quality sticks should have opportunity try Ron Chidgeys stick assemblies see higher quality Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC SoaringlPrus Continued page 47 Irvine CA 92714 Top Flite showed its well-tested proven Antares bird weekend flier demand compete multi-task events typical top-flight Top Flite kitI guess thats Top Flite2—assembles fast has complete hardware package full-size rolled plans Controls rud der flying stab ailerons flaps latter two provide variable-cam bered airfoil Span just under 100 weight three 51/2 lb Top Flite 2635 5 Wabash Ave Chicago IL 60616 Ted Davey winch shop comes Joe Ruths popular Prophet Ted took over production Two-Meter design too will available Ju ly Span 7875 area 6133 sq weight 28 30 oz ready fly lot room ballast Ted also showed fine line winches lineretrievers along winch accessories winches retrievers will used exclusively AMA tasks AMA Nationals Reno August further information write Davey Sys tems Corp Wood Lane Malvern PA 19355 Hardware past tried buy ready-to-install spoilers re ly foreign-made types Theyre good theyre also difficult find side Atlantic Enter Gary Hutchison rascal has done again aluminum Al-I-Spar see February 1983 MA Motion-TransferModule August 1983 MA already big hits Now has come up spoiler module should make life simpler us spoilers have double-actuat ing blades really combination spoiler speed brake servo actu ates two guillotine-type blades slide thin pockets Out top bottom wing assembly six inches long spoilers available blade heights either 1 / inches Both sizes can reduced 7/ blades made fiberglass box nylon whole assembly can conveniently mounted behind wing spar less space pocket comb would require Price $1495 pair Ace R/C Inc 116W 19th St Higgins ville MO 64037 cleverest building aids come along since straight pin Magic Magnet Builder package includes 16 x 48-in steel plate A-in grid lines silk screened sur face Thirty magnets square sides make constructing aligning parts easy stacking kids building blocks photo shows basic build ing layout building wing kit also includes 10 five-inch uprights 10 I-in %2 bolts nuts magnets can course coupled stacked greater holding force odd have-to-hold-it-in-place-till-theglue-dries pieces shapes stacked overhang ganged magnets can used hold down top spar example quarter-inch grid provides enough reference lines build detailed plans Cost $8995 Eldon J Lind Co 2912 Walker Lee Los Alamitos CA 90720 items just sklni wares available through manufacturersnearly 200 themthat showed Toledoand its just manufacturers show Special interest groups such Academy Model Aeronautics League Silent Flight National Soaring Society have booths serve hangouts R&D departments confessionals past three years LSF booth has served sacred ground pre senting Level V awards earned earlier year havent anyone can attest reads column 33 date year Stan Watson Pegasus presented last requirement contest win did hard wayby winning Greater Detroit Soaring Hiking Societys 1984 Sno Fli Congratulations Stan Support F3B team Good lift Dan Przsss 131 E Pennington Ln Plainfield IL 60544 RC ElectricslKopski Continued page 49 subject keeping time some readers have inquired about keep tabs charge condition tiny 70 100 mAh cells used radios small Electrics such Persuader Part Seven mentioned time that particular model 144 Model Aviation good four flights its 70 mAh pack discharged recharged field Well seems terest some folks Im preparing submission MA Good Editor goes youll see way Specifically have very simple homebrew accessory easy low-cost build will safely run small flight packs down point can safely recharge same equipment use motor batter ies sounds good stay tuned what readings really mean expanded information use switches connectors assembling battery packs Remember have ideas along linethings youd like see cludedor how-to things youd like shareplease send em Bob Kopski 25 West End Dr Lans dale PA 19446 Happy landings RC Pylon RacinglHage Continued page 50 OK kept charged did regularly take pack out inspect Well day forward have paid careful attention batteries ways products market help monitoring batteries use Power Pacer personal preference unit will completely cycle Ni-Cd battery pack have bad cells will also know right away sure lot better finding bad cells bench middle race Ive recently opportunity see copy Electric Flight Dave Day book published Great Britain available Motorbooks International 729 Prospect Ave Osceola WI 54020 Sorry dont know cost Its fairly small book about 6 x 8 94 pages lots pictures product de scriptions performance information foreign merchandise may readily available country book includes some basic some how-to information probably useful overview wide range Electric accomplishments source inspiration new ideas As preview some topics covered future RC Electrics include basic elec trical terms meanings applied Electric flight use meters probably its weakest link prob ably neglected itemsand usually put forward part plane vibration worst havent done yet maybe now too late take pack out check thoroughly Check wires plug Repack batteries good soft foam rubber reinstalling pack make sure wedge too tightly About five years ago lost plane flown two full seasons plane probably best plane have ever owned middle race going number pylon couldnt get turn just flew woods guessed itbad batteries three bad cells flight pack batteries over three years old Andyou guessed againI never checked Now am done batteries speech year can get back racing Dont forgetsend something about what District doing rac ing Send direct magazine office See next month Bill Hager 706 Glen Haven Dr Conroe TX 77385 RC HelicopterslJolly Continued page 51 portant allows get out both Helicopter engine Lets take look Futaba 7GH As other modern radios 7GH features dual rates aileron elevator ruddereach controlled separately switches mounted top trans August1984 145
Edition: Model Aviation - 1984/08
Page Numbers: 48, 49, 144, 145
Radio Contml Electrics Bob Kopski FROM good neighbors north comes first-time Electric success story Vic Walpole Ajax Ontario Vic visited 1983 KRC Electric Fly took lots pictures returned home try himself results seen accompanying photos plane Marks Models Wanderer 99 Vic bought model auction $12 proceeded some rework first outfitted Astro 05 Cobalt geared 24 1 Geist new small prop about l5A-in diameter 8-in pitch think Energy storage seven 12 Ah cells drain 19 amps All-up weight 4A lb Electric Elation immediateit flew right surprise Should fly Lets use information Vic supplied ap ply Rules Thumb Part Eight Electrics series April 1984 MA wing area 900 sq 625 sq ft 4A lbs wing loading 72 oz/ 625 about 115 oz/sq ft motor input-power about 7-8 volts x 19 amps about 140 watts Rule Thumb Power Cruise Weight lb x Wing Loading oz/sq ft 45 x 115 52 watts good ol all-around per formance Part Nine said double numberwhich 104 watts Vics ratio 140/52 about 27 No wonder flies Ill bet heck relief Vic know should fly Vic designed installation some flexibility could try some options substitute Keller 50/30 Cobalt direct-driving same propbut 14 cells 13 amps put weight 5 lb brought plane good launch height three four times per charge Vic reports best flight far mid-winter 23 minutes now tells us hes coming back again years Electric Flybut planesand four cameras time hes gonna slides B&W color prints video tape little Elation goes long way Congratulations Vic Now Oooops department Ive some reader response MA s Elec tric Series Part Nine May issue installment offered rather extensive table motor battery prop com binations known performance Well seems entry bit off second line table Astro 035 Im told motor best run five cells six 6 x 3 prop Evidently combination did list known have excessive current de mandmany amps indicated performance table gave away 035 now cant back up recheck Ill just pass update along same context received thanks Bernard Cawley Auburn WA Remember Part Seven Electric series flight time histograms variety Electrics hundreds hun dreds documented flights record ed others flight log books Let tell about very early days Electric en deavors successful flight infre quentand shortoccurrence constant struggle get something Elec tric air keep awhile Changing props gears batteries etc soon became very confusing began keeping notes too long time success became predictable routine notes began take form flight log Flight time increased dramatically trips field became much frequent model count increased Some same things kept changinglike props batteries information noted re sultPart Seven wasnt planned way just happened Anyway idea flight log spread among local fliers now several fellow club members keep log books thing common note-taking thats stopwatch keeping track flight time photos show some trans mitters watches attached interesting keep tabs flight times watches can also keep up minute motor battery stands very helpful information especially such power-spending mod els Aerobatics Flight times tend fairly consistent models can always judge should lin ing up grease notebooks pictured suggest several possible styles modeler uses small book model Most use book having designated sections vari ous planes Entries may vary person al preference like note date flight time routine entries anything special unusual Examples latter can include such things prop changes charging differences unusual weather conditions whatever Some folks 48 Model Aviation Electric Elation Thats first Eiectric ship gets grip airand goes Vicaipole Ajax Ontario Canada puts Keiier5o/30 motor Wanderer99 setout chiii December 1983 day see Eiectric stuff reai modei weighs about 51/2 ib Photo L beiow shows has great flying site wind blowing about 15-20 mph Photo R below shows motor/RC installation charging setup charger isa Robbe unitprobably automatic cutoff RC functions rudder elevator multi-step throttle contacts resistors fly both Electric wet power now keeping logs planes What started Out sort lab notebook has evolved both formativeand funaspect routine flying Fun what hobby about consider giving try decide yourself its funand usefulfor Now back stopwatches themselves As can see kind common stopwatch can used transmitters shown held place double-sticky-backed Velcro allows timepieces easily removed use other transmitters elsewhere Also method non-injurious trans mitter watch case surfaces use Radio Shack Hook-and-Loop Fastener Strips catalog No 64-2345 package four 1-in x 3-in fastener pairs plenty other proj ects such installing servos described Part Five Similar material available other sizes colors fabric sew ing stores Cut strip desired size scissors Clean surfaces youre going put fasteners wipe window cleaner alcohol install place sure locate watch its convenient operateand see Now can fly clock watchers same time Try sketching own flight histogram looks good share Continued page 144 Here-u varieTy iranammers ana flIght log books used Bobs local Electric filers Flight watches Include CL photo L R sports digital wristwatch minus strap classic windup Notebooks run cheaples good looseleaf types Keeping log book flights helps remember what worked what didnt Most filers like look back early experiences Mounting stopwatch transmitter can simple R small angie-bracket brass strip hobby shop bolted transmitter case Velcro hook-and ioop fastener stuck to watch case easy removal watch helps keep tabs battery charge No blow outs lost pipes nsightly ties clamps r neat appearance boats airplanes Fits 40 60 engines pipe 720 dia 800 dia Wt 135 oz ____________ inum components compression sealed silicone 0 rings ector comes extra 0 ring tional 0 rings may purchased sending self-addressed stamped envelope 50 0 ring ordertol al Payne Enterprises213 32G 1843 W Torrance Torrance CA 90501 Name_____________________________________ I Address___________________________________ ____________________________________________________________[v32][b195023037800]] Print legiblythis return label LEOS LASER *JR STICK World Aerobatic Champion Ideal Trainer Top Quality Epoxy Glass Fuse loge Cowl & Wheel Pants Ootstandog Balsa & Foam Co inum Landing Gear 72 Wing Spas Wing Aroo-1050 sq Foam Wing 90 Span Wing0 12 Moor Assembly Time Area 1440 sq inches Weiglss t 12 lbs BalsatoFnslsKt logineise 7513 Complete Step Step 95 struct ons m th P ctores US ght 16 20 lbs NM SHIPPING Eng ne 2 4 HP ect Sales Only COMING SOON $j 999ws * 4O&25 sizes PPINGTurboBD Trainer Direct Sales Only Canton OH 44707 Phone 216 4846810 484-4374 -1 AuQust 1984 49 Tuned Pipe$1400 plus $150 pootage CuauuuuLIuu handling eachl Manufacturers Quality Kits RO USH M Large Scale Engines NOW THERES QUICK AND EASY WAY OF CLEANING YOUR MODEL CRAFTS Super-K Model Cleaner Remaves fuel Residue di contact CUTS CLEANING TIME IN HALF Just spray model solvent pe soft cloth paper towel SIMPIE AS THATl Leaves craft showcase clean Wont bairn Paints Covdngs Ddes Cleor fast EmInates Work cleaning model Strong Professional jolity formula Great Model Craft Boots manes Helicopters Cleans Gently Protects delicate model DEALERS WANTED DOMESTIC & OVERSEAS WE EXPORT Hurry Have product shelves time Chnstmas guaranteed top seller Sugg retail $550 per gallon Contact us price structures ordering information Also ask about other SuperK products Model industry Are Manufacturers & Major kands Distributors Model Engines KIts Radios Accessoiles Kings Radio Control Hobbies International 3960 West 16th Ave Hialeoh Florida 33012 Phone 305 557-2024 EIERSII Ir-O-FIII off better- Glows IProteotivel Bendable PrImers J start thIs Season- Thinner snAccess using KIN-CRAFT Quality hit j - Dust Masks - Gatar Grip Contact Cement - Appilastor Kits Engine Clesnend Oil Kits Mberglsss Clo* Cloth II % 26 Tspenl4b6 Send aeff-ddresed staeupedeaveisp let free catalegue aMseeuats Custom Cut Cloth Any Lsngth Kin-Craft P41g Mi 2 Sex 481 MAimed KV4Z 101 1606 928-4 763 Apple Computer owners have TRS 80 Color Computer doubt program would function with out substantial modification way did home-computer owners know Kraft Systems Inc marketing super series joystick con trollers lot home computers arent cheap work well stick assemblies made Kraft K line transmitters think nice features few other manufacturers joysticks have twoaxis trim capability stick assembly provides Non-RC people amazed high quality sticks should have opportunity try Ron Chidgeys stick assemblies see higher quality Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC SoaringlPrus Continued page 47 Irvine CA 92714 Top Flite showed its well-tested proven Antares bird weekend flier demand compete multi-task events typical top-flight Top Flite kitI guess thats Top Flite2—assembles fast has complete hardware package full-size rolled plans Controls rud der flying stab ailerons flaps latter two provide variable-cam bered airfoil Span just under 100 weight three 51/2 lb Top Flite 2635 5 Wabash Ave Chicago IL 60616 Ted Davey winch shop comes Joe Ruths popular Prophet Ted took over production Two-Meter design too will available Ju ly Span 7875 area 6133 sq weight 28 30 oz ready fly lot room ballast Ted also showed fine line winches lineretrievers along winch accessories winches retrievers will used exclusively AMA tasks AMA Nationals Reno August further information write Davey Sys tems Corp Wood Lane Malvern PA 19355 Hardware past tried buy ready-to-install spoilers re ly foreign-made types Theyre good theyre also difficult find side Atlantic Enter Gary Hutchison rascal has done again aluminum Al-I-Spar see February 1983 MA Motion-TransferModule August 1983 MA already big hits Now has come up spoiler module should make life simpler us spoilers have double-actuat ing blades really combination spoiler speed brake servo actu ates two guillotine-type blades slide thin pockets Out top bottom wing assembly six inches long spoilers available blade heights either 1 / inches Both sizes can reduced 7/ blades made fiberglass box nylon whole assembly can conveniently mounted behind wing spar less space pocket comb would require Price $1495 pair Ace R/C Inc 116W 19th St Higgins ville MO 64037 cleverest building aids come along since straight pin Magic Magnet Builder package includes 16 x 48-in steel plate A-in grid lines silk screened sur face Thirty magnets square sides make constructing aligning parts easy stacking kids building blocks photo shows basic build ing layout building wing kit also includes 10 five-inch uprights 10 I-in %2 bolts nuts magnets can course coupled stacked greater holding force odd have-to-hold-it-in-place-till-theglue-dries pieces shapes stacked overhang ganged magnets can used hold down top spar example quarter-inch grid provides enough reference lines build detailed plans Cost $8995 Eldon J Lind Co 2912 Walker Lee Los Alamitos CA 90720 items just sklni wares available through manufacturersnearly 200 themthat showed Toledoand its just manufacturers show Special interest groups such Academy Model Aeronautics League Silent Flight National Soaring Society have booths serve hangouts R&D departments confessionals past three years LSF booth has served sacred ground pre senting Level V awards earned earlier year havent anyone can attest reads column 33 date year Stan Watson Pegasus presented last requirement contest win did hard wayby winning Greater Detroit Soaring Hiking Societys 1984 Sno Fli Congratulations Stan Support F3B team Good lift Dan Przsss 131 E Pennington Ln Plainfield IL 60544 RC ElectricslKopski Continued page 49 subject keeping time some readers have inquired about keep tabs charge condition tiny 70 100 mAh cells used radios small Electrics such Persuader Part Seven mentioned time that particular model 144 Model Aviation good four flights its 70 mAh pack discharged recharged field Well seems terest some folks Im preparing submission MA Good Editor goes youll see way Specifically have very simple homebrew accessory easy low-cost build will safely run small flight packs down point can safely recharge same equipment use motor batter ies sounds good stay tuned what readings really mean expanded information use switches connectors assembling battery packs Remember have ideas along linethings youd like see cludedor how-to things youd like shareplease send em Bob Kopski 25 West End Dr Lans dale PA 19446 Happy landings RC Pylon RacinglHage Continued page 50 OK kept charged did regularly take pack out inspect Well day forward have paid careful attention batteries ways products market help monitoring batteries use Power Pacer personal preference unit will completely cycle Ni-Cd battery pack have bad cells will also know right away sure lot better finding bad cells bench middle race Ive recently opportunity see copy Electric Flight Dave Day book published Great Britain available Motorbooks International 729 Prospect Ave Osceola WI 54020 Sorry dont know cost Its fairly small book about 6 x 8 94 pages lots pictures product de scriptions performance information foreign merchandise may readily available country book includes some basic some how-to information probably useful overview wide range Electric accomplishments source inspiration new ideas As preview some topics covered future RC Electrics include basic elec trical terms meanings applied Electric flight use meters probably its weakest link prob ably neglected itemsand usually put forward part plane vibration worst havent done yet maybe now too late take pack out check thoroughly Check wires plug Repack batteries good soft foam rubber reinstalling pack make sure wedge too tightly About five years ago lost plane flown two full seasons plane probably best plane have ever owned middle race going number pylon couldnt get turn just flew woods guessed itbad batteries three bad cells flight pack batteries over three years old Andyou guessed againI never checked Now am done batteries speech year can get back racing Dont forgetsend something about what District doing rac ing Send direct magazine office See next month Bill Hager 706 Glen Haven Dr Conroe TX 77385 RC HelicopterslJolly Continued page 51 portant allows get out both Helicopter engine Lets take look Futaba 7GH As other modern radios 7GH features dual rates aileron elevator ruddereach controlled separately switches mounted top trans August1984 145
Edition: Model Aviation - 1984/08
Page Numbers: 48, 49, 144, 145
Radio Contml Electrics Bob Kopski FROM good neighbors north comes first-time Electric success story Vic Walpole Ajax Ontario Vic visited 1983 KRC Electric Fly took lots pictures returned home try himself results seen accompanying photos plane Marks Models Wanderer 99 Vic bought model auction $12 proceeded some rework first outfitted Astro 05 Cobalt geared 24 1 Geist new small prop about l5A-in diameter 8-in pitch think Energy storage seven 12 Ah cells drain 19 amps All-up weight 4A lb Electric Elation immediateit flew right surprise Should fly Lets use information Vic supplied ap ply Rules Thumb Part Eight Electrics series April 1984 MA wing area 900 sq 625 sq ft 4A lbs wing loading 72 oz/ 625 about 115 oz/sq ft motor input-power about 7-8 volts x 19 amps about 140 watts Rule Thumb Power Cruise Weight lb x Wing Loading oz/sq ft 45 x 115 52 watts good ol all-around per formance Part Nine said double numberwhich 104 watts Vics ratio 140/52 about 27 No wonder flies Ill bet heck relief Vic know should fly Vic designed installation some flexibility could try some options substitute Keller 50/30 Cobalt direct-driving same propbut 14 cells 13 amps put weight 5 lb brought plane good launch height three four times per charge Vic reports best flight far mid-winter 23 minutes now tells us hes coming back again years Electric Flybut planesand four cameras time hes gonna slides B&W color prints video tape little Elation goes long way Congratulations Vic Now Oooops department Ive some reader response MA s Elec tric Series Part Nine May issue installment offered rather extensive table motor battery prop com binations known performance Well seems entry bit off second line table Astro 035 Im told motor best run five cells six 6 x 3 prop Evidently combination did list known have excessive current de mandmany amps indicated performance table gave away 035 now cant back up recheck Ill just pass update along same context received thanks Bernard Cawley Auburn WA Remember Part Seven Electric series flight time histograms variety Electrics hundreds hun dreds documented flights record ed others flight log books Let tell about very early days Electric en deavors successful flight infre quentand shortoccurrence constant struggle get something Elec tric air keep awhile Changing props gears batteries etc soon became very confusing began keeping notes too long time success became predictable routine notes began take form flight log Flight time increased dramatically trips field became much frequent model count increased Some same things kept changinglike props batteries information noted re sultPart Seven wasnt planned way just happened Anyway idea flight log spread among local fliers now several fellow club members keep log books thing common note-taking thats stopwatch keeping track flight time photos show some trans mitters watches attached interesting keep tabs flight times watches can also keep up minute motor battery stands very helpful information especially such power-spending mod els Aerobatics Flight times tend fairly consistent models can always judge should lin ing up grease notebooks pictured suggest several possible styles modeler uses small book model Most use book having designated sections vari ous planes Entries may vary person al preference like note date flight time routine entries anything special unusual Examples latter can include such things prop changes charging differences unusual weather conditions whatever Some folks 48 Model Aviation Electric Elation Thats first Eiectric ship gets grip airand goes Vicaipole Ajax Ontario Canada puts Keiier5o/30 motor Wanderer99 setout chiii December 1983 day see Eiectric stuff reai modei weighs about 51/2 ib Photo L beiow shows has great flying site wind blowing about 15-20 mph Photo R below shows motor/RC installation charging setup charger isa Robbe unitprobably automatic cutoff RC functions rudder elevator multi-step throttle contacts resistors fly both Electric wet power now keeping logs planes What started Out sort lab notebook has evolved both formativeand funaspect routine flying Fun what hobby about consider giving try decide yourself its funand usefulfor Now back stopwatches themselves As can see kind common stopwatch can used transmitters shown held place double-sticky-backed Velcro allows timepieces easily removed use other transmitters elsewhere Also method non-injurious trans mitter watch case surfaces use Radio Shack Hook-and-Loop Fastener Strips catalog No 64-2345 package four 1-in x 3-in fastener pairs plenty other proj ects such installing servos described Part Five Similar material available other sizes colors fabric sew ing stores Cut strip desired size scissors Clean surfaces youre going put fasteners wipe window cleaner alcohol install place sure locate watch its convenient operateand see Now can fly clock watchers same time Try sketching own flight histogram looks good share Continued page 144 Here-u varieTy iranammers ana flIght log books used Bobs local Electric filers Flight watches Include CL photo L R sports digital wristwatch minus strap classic windup Notebooks run cheaples good looseleaf types Keeping log book flights helps remember what worked what didnt Most filers like look back early experiences Mounting stopwatch transmitter can simple R small angie-bracket brass strip hobby shop bolted transmitter case Velcro hook-and ioop fastener stuck to watch case easy removal watch helps keep tabs battery charge No blow outs lost pipes nsightly ties clamps r neat appearance boats airplanes Fits 40 60 engines pipe 720 dia 800 dia Wt 135 oz ____________ inum components compression sealed silicone 0 rings ector comes extra 0 ring tional 0 rings may purchased sending self-addressed stamped envelope 50 0 ring ordertol al Payne Enterprises213 32G 1843 W Torrance Torrance CA 90501 Name_____________________________________ I Address___________________________________ ____________________________________________________________[v32][b195023037800]] Print legiblythis return label LEOS LASER *JR STICK World Aerobatic Champion Ideal Trainer Top Quality Epoxy Glass Fuse loge Cowl & Wheel Pants Ootstandog Balsa & Foam Co inum Landing Gear 72 Wing Spas Wing Aroo-1050 sq Foam Wing 90 Span Wing0 12 Moor Assembly Time Area 1440 sq inches Weiglss t 12 lbs BalsatoFnslsKt logineise 7513 Complete Step Step 95 struct ons m th P ctores US ght 16 20 lbs NM SHIPPING Eng ne 2 4 HP ect Sales Only COMING SOON $j 999ws * 4O&25 sizes PPINGTurboBD Trainer Direct Sales Only Canton OH 44707 Phone 216 4846810 484-4374 -1 AuQust 1984 49 Tuned Pipe$1400 plus $150 pootage CuauuuuLIuu handling eachl Manufacturers Quality Kits RO USH M Large Scale Engines NOW THERES QUICK AND EASY WAY OF CLEANING YOUR MODEL CRAFTS Super-K Model Cleaner Remaves fuel Residue di contact CUTS CLEANING TIME IN HALF Just spray model solvent pe soft cloth paper towel SIMPIE AS THATl Leaves craft showcase clean Wont bairn Paints Covdngs Ddes Cleor fast EmInates Work cleaning model Strong Professional jolity formula Great Model Craft Boots manes Helicopters Cleans Gently Protects delicate model DEALERS WANTED DOMESTIC & OVERSEAS WE EXPORT Hurry Have product shelves time Chnstmas guaranteed top seller Sugg retail $550 per gallon Contact us price structures ordering information Also ask about other SuperK products Model industry Are Manufacturers & Major kands Distributors Model Engines KIts Radios Accessoiles Kings Radio Control Hobbies International 3960 West 16th Ave Hialeoh Florida 33012 Phone 305 557-2024 EIERSII Ir-O-FIII off better- Glows IProteotivel Bendable PrImers J start thIs Season- Thinner snAccess using KIN-CRAFT Quality hit j - Dust Masks - Gatar Grip Contact Cement - Appilastor Kits Engine Clesnend Oil Kits Mberglsss Clo* Cloth II % 26 Tspenl4b6 Send aeff-ddresed staeupedeaveisp let free catalegue aMseeuats Custom Cut Cloth Any Lsngth Kin-Craft P41g Mi 2 Sex 481 MAimed KV4Z 101 1606 928-4 763 Apple Computer owners have TRS 80 Color Computer doubt program would function with out substantial modification way did home-computer owners know Kraft Systems Inc marketing super series joystick con trollers lot home computers arent cheap work well stick assemblies made Kraft K line transmitters think nice features few other manufacturers joysticks have twoaxis trim capability stick assembly provides Non-RC people amazed high quality sticks should have opportunity try Ron Chidgeys stick assemblies see higher quality Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC SoaringlPrus Continued page 47 Irvine CA 92714 Top Flite showed its well-tested proven Antares bird weekend flier demand compete multi-task events typical top-flight Top Flite kitI guess thats Top Flite2—assembles fast has complete hardware package full-size rolled plans Controls rud der flying stab ailerons flaps latter two provide variable-cam bered airfoil Span just under 100 weight three 51/2 lb Top Flite 2635 5 Wabash Ave Chicago IL 60616 Ted Davey winch shop comes Joe Ruths popular Prophet Ted took over production Two-Meter design too will available Ju ly Span 7875 area 6133 sq weight 28 30 oz ready fly lot room ballast Ted also showed fine line winches lineretrievers along winch accessories winches retrievers will used exclusively AMA tasks AMA Nationals Reno August further information write Davey Sys tems Corp Wood Lane Malvern PA 19355 Hardware past tried buy ready-to-install spoilers re ly foreign-made types Theyre good theyre also difficult find side Atlantic Enter Gary Hutchison rascal has done again aluminum Al-I-Spar see February 1983 MA Motion-TransferModule August 1983 MA already big hits Now has come up spoiler module should make life simpler us spoilers have double-actuat ing blades really combination spoiler speed brake servo actu ates two guillotine-type blades slide thin pockets Out top bottom wing assembly six inches long spoilers available blade heights either 1 / inches Both sizes can reduced 7/ blades made fiberglass box nylon whole assembly can conveniently mounted behind wing spar less space pocket comb would require Price $1495 pair Ace R/C Inc 116W 19th St Higgins ville MO 64037 cleverest building aids come along since straight pin Magic Magnet Builder package includes 16 x 48-in steel plate A-in grid lines silk screened sur face Thirty magnets square sides make constructing aligning parts easy stacking kids building blocks photo shows basic build ing layout building wing kit also includes 10 five-inch uprights 10 I-in %2 bolts nuts magnets can course coupled stacked greater holding force odd have-to-hold-it-in-place-till-theglue-dries pieces shapes stacked overhang ganged magnets can used hold down top spar example quarter-inch grid provides enough reference lines build detailed plans Cost $8995 Eldon J Lind Co 2912 Walker Lee Los Alamitos CA 90720 items just sklni wares available through manufacturersnearly 200 themthat showed Toledoand its just manufacturers show Special interest groups such Academy Model Aeronautics League Silent Flight National Soaring Society have booths serve hangouts R&D departments confessionals past three years LSF booth has served sacred ground pre senting Level V awards earned earlier year havent anyone can attest reads column 33 date year Stan Watson Pegasus presented last requirement contest win did hard wayby winning Greater Detroit Soaring Hiking Societys 1984 Sno Fli Congratulations Stan Support F3B team Good lift Dan Przsss 131 E Pennington Ln Plainfield IL 60544 RC ElectricslKopski Continued page 49 subject keeping time some readers have inquired about keep tabs charge condition tiny 70 100 mAh cells used radios small Electrics such Persuader Part Seven mentioned time that particular model 144 Model Aviation good four flights its 70 mAh pack discharged recharged field Well seems terest some folks Im preparing submission MA Good Editor goes youll see way Specifically have very simple homebrew accessory easy low-cost build will safely run small flight packs down point can safely recharge same equipment use motor batter ies sounds good stay tuned what readings really mean expanded information use switches connectors assembling battery packs Remember have ideas along linethings youd like see cludedor how-to things youd like shareplease send em Bob Kopski 25 West End Dr Lans dale PA 19446 Happy landings RC Pylon RacinglHage Continued page 50 OK kept charged did regularly take pack out inspect Well day forward have paid careful attention batteries ways products market help monitoring batteries use Power Pacer personal preference unit will completely cycle Ni-Cd battery pack have bad cells will also know right away sure lot better finding bad cells bench middle race Ive recently opportunity see copy Electric Flight Dave Day book published Great Britain available Motorbooks International 729 Prospect Ave Osceola WI 54020 Sorry dont know cost Its fairly small book about 6 x 8 94 pages lots pictures product de scriptions performance information foreign merchandise may readily available country book includes some basic some how-to information probably useful overview wide range Electric accomplishments source inspiration new ideas As preview some topics covered future RC Electrics include basic elec trical terms meanings applied Electric flight use meters probably its weakest link prob ably neglected itemsand usually put forward part plane vibration worst havent done yet maybe now too late take pack out check thoroughly Check wires plug Repack batteries good soft foam rubber reinstalling pack make sure wedge too tightly About five years ago lost plane flown two full seasons plane probably best plane have ever owned middle race going number pylon couldnt get turn just flew woods guessed itbad batteries three bad cells flight pack batteries over three years old Andyou guessed againI never checked Now am done batteries speech year can get back racing Dont forgetsend something about what District doing rac ing Send direct magazine office See next month Bill Hager 706 Glen Haven Dr Conroe TX 77385 RC HelicopterslJolly Continued page 51 portant allows get out both Helicopter engine Lets take look Futaba 7GH As other modern radios 7GH features dual rates aileron elevator ruddereach controlled separately switches mounted top trans August1984 145
Edition: Model Aviation - 1984/08
Page Numbers: 48, 49, 144, 145
Radio Contml Electrics Bob Kopski FROM good neighbors north comes first-time Electric success story Vic Walpole Ajax Ontario Vic visited 1983 KRC Electric Fly took lots pictures returned home try himself results seen accompanying photos plane Marks Models Wanderer 99 Vic bought model auction $12 proceeded some rework first outfitted Astro 05 Cobalt geared 24 1 Geist new small prop about l5A-in diameter 8-in pitch think Energy storage seven 12 Ah cells drain 19 amps All-up weight 4A lb Electric Elation immediateit flew right surprise Should fly Lets use information Vic supplied ap ply Rules Thumb Part Eight Electrics series April 1984 MA wing area 900 sq 625 sq ft 4A lbs wing loading 72 oz/ 625 about 115 oz/sq ft motor input-power about 7-8 volts x 19 amps about 140 watts Rule Thumb Power Cruise Weight lb x Wing Loading oz/sq ft 45 x 115 52 watts good ol all-around per formance Part Nine said double numberwhich 104 watts Vics ratio 140/52 about 27 No wonder flies Ill bet heck relief Vic know should fly Vic designed installation some flexibility could try some options substitute Keller 50/30 Cobalt direct-driving same propbut 14 cells 13 amps put weight 5 lb brought plane good launch height three four times per charge Vic reports best flight far mid-winter 23 minutes now tells us hes coming back again years Electric Flybut planesand four cameras time hes gonna slides B&W color prints video tape little Elation goes long way Congratulations Vic Now Oooops department Ive some reader response MA s Elec tric Series Part Nine May issue installment offered rather extensive table motor battery prop com binations known performance Well seems entry bit off second line table Astro 035 Im told motor best run five cells six 6 x 3 prop Evidently combination did list known have excessive current de mandmany amps indicated performance table gave away 035 now cant back up recheck Ill just pass update along same context received thanks Bernard Cawley Auburn WA Remember Part Seven Electric series flight time histograms variety Electrics hundreds hun dreds documented flights record ed others flight log books Let tell about very early days Electric en deavors successful flight infre quentand shortoccurrence constant struggle get something Elec tric air keep awhile Changing props gears batteries etc soon became very confusing began keeping notes too long time success became predictable routine notes began take form flight log Flight time increased dramatically trips field became much frequent model count increased Some same things kept changinglike props batteries information noted re sultPart Seven wasnt planned way just happened Anyway idea flight log spread among local fliers now several fellow club members keep log books thing common note-taking thats stopwatch keeping track flight time photos show some trans mitters watches attached interesting keep tabs flight times watches can also keep up minute motor battery stands very helpful information especially such power-spending mod els Aerobatics Flight times tend fairly consistent models can always judge should lin ing up grease notebooks pictured suggest several possible styles modeler uses small book model Most use book having designated sections vari ous planes Entries may vary person al preference like note date flight time routine entries anything special unusual Examples latter can include such things prop changes charging differences unusual weather conditions whatever Some folks 48 Model Aviation Electric Elation Thats first Eiectric ship gets grip airand goes Vicaipole Ajax Ontario Canada puts Keiier5o/30 motor Wanderer99 setout chiii December 1983 day see Eiectric stuff reai modei weighs about 51/2 ib Photo L beiow shows has great flying site wind blowing about 15-20 mph Photo R below shows motor/RC installation charging setup charger isa Robbe unitprobably automatic cutoff RC functions rudder elevator multi-step throttle contacts resistors fly both Electric wet power now keeping logs planes What started Out sort lab notebook has evolved both formativeand funaspect routine flying Fun what hobby about consider giving try decide yourself its funand usefulfor Now back stopwatches themselves As can see kind common stopwatch can used transmitters shown held place double-sticky-backed Velcro allows timepieces easily removed use other transmitters elsewhere Also method non-injurious trans mitter watch case surfaces use Radio Shack Hook-and-Loop Fastener Strips catalog No 64-2345 package four 1-in x 3-in fastener pairs plenty other proj ects such installing servos described Part Five Similar material available other sizes colors fabric sew ing stores Cut strip desired size scissors Clean surfaces youre going put fasteners wipe window cleaner alcohol install place sure locate watch its convenient operateand see Now can fly clock watchers same time Try sketching own flight histogram looks good share Continued page 144 Here-u varieTy iranammers ana flIght log books used Bobs local Electric filers Flight watches Include CL photo L R sports digital wristwatch minus strap classic windup Notebooks run cheaples good looseleaf types Keeping log book flights helps remember what worked what didnt Most filers like look back early experiences Mounting stopwatch transmitter can simple R small angie-bracket brass strip hobby shop bolted transmitter case Velcro hook-and ioop fastener stuck to watch case easy removal watch helps keep tabs battery charge No blow outs lost pipes nsightly ties clamps r neat appearance boats airplanes Fits 40 60 engines pipe 720 dia 800 dia Wt 135 oz ____________ inum components compression sealed silicone 0 rings ector comes extra 0 ring tional 0 rings may purchased sending self-addressed stamped envelope 50 0 ring ordertol al Payne Enterprises213 32G 1843 W Torrance Torrance CA 90501 Name_____________________________________ I Address___________________________________ ____________________________________________________________[v32][b195023037800]] Print legiblythis return label LEOS LASER *JR STICK World Aerobatic Champion Ideal Trainer Top Quality Epoxy Glass Fuse loge Cowl & Wheel Pants Ootstandog Balsa & Foam Co inum Landing Gear 72 Wing Spas Wing Aroo-1050 sq Foam Wing 90 Span Wing0 12 Moor Assembly Time Area 1440 sq inches Weiglss t 12 lbs BalsatoFnslsKt logineise 7513 Complete Step Step 95 struct ons m th P ctores US ght 16 20 lbs NM SHIPPING Eng ne 2 4 HP ect Sales Only COMING SOON $j 999ws * 4O&25 sizes PPINGTurboBD Trainer Direct Sales Only Canton OH 44707 Phone 216 4846810 484-4374 -1 AuQust 1984 49 Tuned Pipe$1400 plus $150 pootage CuauuuuLIuu handling eachl Manufacturers Quality Kits RO USH M Large Scale Engines NOW THERES QUICK AND EASY WAY OF CLEANING YOUR MODEL CRAFTS Super-K Model Cleaner Remaves fuel Residue di contact CUTS CLEANING TIME IN HALF Just spray model solvent pe soft cloth paper towel SIMPIE AS THATl Leaves craft showcase clean Wont bairn Paints Covdngs Ddes Cleor fast EmInates Work cleaning model Strong Professional jolity formula Great Model Craft Boots manes Helicopters Cleans Gently Protects delicate model DEALERS WANTED DOMESTIC & OVERSEAS WE EXPORT Hurry Have product shelves time Chnstmas guaranteed top seller Sugg retail $550 per gallon Contact us price structures ordering information Also ask about other SuperK products Model industry Are Manufacturers & Major kands Distributors Model Engines KIts Radios Accessoiles Kings Radio Control Hobbies International 3960 West 16th Ave Hialeoh Florida 33012 Phone 305 557-2024 EIERSII Ir-O-FIII off better- Glows IProteotivel Bendable PrImers J start thIs Season- Thinner snAccess using KIN-CRAFT Quality hit j - Dust Masks - Gatar Grip Contact Cement - Appilastor Kits Engine Clesnend Oil Kits Mberglsss Clo* Cloth II % 26 Tspenl4b6 Send aeff-ddresed staeupedeaveisp let free catalegue aMseeuats Custom Cut Cloth Any Lsngth Kin-Craft P41g Mi 2 Sex 481 MAimed KV4Z 101 1606 928-4 763 Apple Computer owners have TRS 80 Color Computer doubt program would function with out substantial modification way did home-computer owners know Kraft Systems Inc marketing super series joystick con trollers lot home computers arent cheap work well stick assemblies made Kraft K line transmitters think nice features few other manufacturers joysticks have twoaxis trim capability stick assembly provides Non-RC people amazed high quality sticks should have opportunity try Ron Chidgeys stick assemblies see higher quality Ron Van Putte 111 Sleepy Oaks Rd Ft Walton Beach FL 32548 RC SoaringlPrus Continued page 47 Irvine CA 92714 Top Flite showed its well-tested proven Antares bird weekend flier demand compete multi-task events typical top-flight Top Flite kitI guess thats Top Flite2—assembles fast has complete hardware package full-size rolled plans Controls rud der flying stab ailerons flaps latter two provide variable-cam bered airfoil Span just under 100 weight three 51/2 lb Top Flite 2635 5 Wabash Ave Chicago IL 60616 Ted Davey winch shop comes Joe Ruths popular Prophet Ted took over production Two-Meter design too will available Ju ly Span 7875 area 6133 sq weight 28 30 oz ready fly lot room ballast Ted also showed fine line winches lineretrievers along winch accessories winches retrievers will used exclusively AMA tasks AMA Nationals Reno August further information write Davey Sys tems Corp Wood Lane Malvern PA 19355 Hardware past tried buy ready-to-install spoilers re ly foreign-made types Theyre good theyre also difficult find side Atlantic Enter Gary Hutchison rascal has done again aluminum Al-I-Spar see February 1983 MA Motion-TransferModule August 1983 MA already big hits Now has come up spoiler module should make life simpler us spoilers have double-actuat ing blades really combination spoiler speed brake servo actu ates two guillotine-type blades slide thin pockets Out top bottom wing assembly six inches long spoilers available blade heights either 1 / inches Both sizes can reduced 7/ blades made fiberglass box nylon whole assembly can conveniently mounted behind wing spar less space pocket comb would require Price $1495 pair Ace R/C Inc 116W 19th St Higgins ville MO 64037 cleverest building aids come along since straight pin Magic Magnet Builder package includes 16 x 48-in steel plate A-in grid lines silk screened sur face Thirty magnets square sides make constructing aligning parts easy stacking kids building blocks photo shows basic build ing layout building wing kit also includes 10 five-inch uprights 10 I-in %2 bolts nuts magnets can course coupled stacked greater holding force odd have-to-hold-it-in-place-till-theglue-dries pieces shapes stacked overhang ganged magnets can used hold down top spar example quarter-inch grid provides enough reference lines build detailed plans Cost $8995 Eldon J Lind Co 2912 Walker Lee Los Alamitos CA 90720 items just sklni wares available through manufacturersnearly 200 themthat showed Toledoand its just manufacturers show Special interest groups such Academy Model Aeronautics League Silent Flight National Soaring Society have booths serve hangouts R&D departments confessionals past three years LSF booth has served sacred ground pre senting Level V awards earned earlier year havent anyone can attest reads column 33 date year Stan Watson Pegasus presented last requirement contest win did hard wayby winning Greater Detroit Soaring Hiking Societys 1984 Sno Fli Congratulations Stan Support F3B team Good lift Dan Przsss 131 E Pennington Ln Plainfield IL 60544 RC ElectricslKopski Continued page 49 subject keeping time some readers have inquired about keep tabs charge condition tiny 70 100 mAh cells used radios small Electrics such Persuader Part Seven mentioned time that particular model 144 Model Aviation good four flights its 70 mAh pack discharged recharged field Well seems terest some folks Im preparing submission MA Good Editor goes youll see way Specifically have very simple homebrew accessory easy low-cost build will safely run small flight packs down point can safely recharge same equipment use motor batter ies sounds good stay tuned what readings really mean expanded information use switches connectors assembling battery packs Remember have ideas along linethings youd like see cludedor how-to things youd like shareplease send em Bob Kopski 25 West End Dr Lans dale PA 19446 Happy landings RC Pylon RacinglHage Continued page 50 OK kept charged did regularly take pack out inspect Well day forward have paid careful attention batteries ways products market help monitoring batteries use Power Pacer personal preference unit will completely cycle Ni-Cd battery pack have bad cells will also know right away sure lot better finding bad cells bench middle race Ive recently opportunity see copy Electric Flight Dave Day book published Great Britain available Motorbooks International 729 Prospect Ave Osceola WI 54020 Sorry dont know cost Its fairly small book about 6 x 8 94 pages lots pictures product de scriptions performance information foreign merchandise may readily available country book includes some basic some how-to information probably useful overview wide range Electric accomplishments source inspiration new ideas As preview some topics covered future RC Electrics include basic elec trical terms meanings applied Electric flight use meters probably its weakest link prob ably neglected itemsand usually put forward part plane vibration worst havent done yet maybe now too late take pack out check thoroughly Check wires plug Repack batteries good soft foam rubber reinstalling pack make sure wedge too tightly About five years ago lost plane flown two full seasons plane probably best plane have ever owned middle race going number pylon couldnt get turn just flew woods guessed itbad batteries three bad cells flight pack batteries over three years old Andyou guessed againI never checked Now am done batteries speech year can get back racing Dont forgetsend something about what District doing rac ing Send direct magazine office See next month Bill Hager 706 Glen Haven Dr Conroe TX 77385 RC HelicopterslJolly Continued page 51 portant allows get out both Helicopter engine Lets take look Futaba 7GH As other modern radios 7GH features dual rates aileron elevator ruddereach controlled separately switches mounted top trans August1984 145