Make Own Timer. electric ignition models A Lid berg COMPETITION flying practical sport flying ignition engine old-timers electric free-flight models requires timer capable shutting off current 25 seconds prefer consistency mechanical Tickoff type timers options few com mercial ready-made switch-equipped timer type available 77 Products cost about $1600 However about two hours time can produce excellent timer about $700 using K Mart similar camera timer have spare Tick-off collection switch-converted timer can built little cost switch Ive made three timers have pleased operation Switch Two types Radio Shack switches readily useable timer lever micro type switch rated 5AI25OVac *275-016 $129 good ignition high current electric models other slide switch rated 03A/l2OVac #275-406 2 59g good ignition low current electric lever switch mounts front face plate slide switch mounts behind plate Timer Modifications No changes needed Tick-off timers unless timer will run long enough arm can repositioned turn increments necessary allow main spring unwind lower tension slow down K Mart Minori camera timers purchased would run about 18 seconds Unwinding mainspring under less tension provides some additional running time Look limiting devices screw through bottom plate K Mart lever output shaft runs stop Minori can removed allow extra rotation Some running time can obtained adding weight form solder escapement rectangular piece rocks back forth regulate speed Adding weight slows down rocking motion Carefully remove escapement loosening screws lower plate timer spreading upper Face Plate piece aluminum sheet iXi h tab end control wire allows room timer either type switch Make up control wire paper clip wire must contact side escapement after passing through slot face plate must capable swinging up out way activating timer laying out face plate put slide switch adjacent end timer allowing 1/32 clearance dust cover Locate lever switch Solder added escapement rocking piece controls speed unwinding slow down Ignition electric timers must capable running 25 seconds unmodified camera timers run about 18 seconds front face plate can actuated timer arm Cut off bend arms non-working end will clear switch Shine up face plate metal polish timer will look less like home-made project unusual very practical finish use fibergiass draftsmans eraser twisted fingers produce spot faced surface Cover kept clean inside timers can provide years service Vacuforming can pro duce neat light plastic cover youre lucky enough have ofMattells gadgets Useable covers can also made folded glued thin plastic sheet 1/32 ply Arm Make arm 025X brass bent needed make sure will contact move switch lever slide K Mart timer small spacer made tubing will required support arm near end output shaft Operation slide switch set-up bit convenient use because allows timer arm cranked around proper time setting before turning switch lever type switch timers control wire becomes control over current flowthe lever switch spring loaded timer arm shuts off Check completed timer carefully smooth continuous running especially under operating conditions mounted place engine motor running Erratic operation will likely due dirt gear teeth also may due added solder escapement touching rotating part Look shiny spots solder spray WD-40 will Continued page 126 62 Model Aviation lower plates apart Add much solder can interfering movement other parts 6 Owning RADIO CONTROL BUYERS GUIDE Like Having Information 260 Manufacturers Catalogs Guide has illustrations descrip tions prices 2400 radio control items information industry master catalog organized indexed cross-indexed easy reference Included latest model cars sailboats power boats aircraft radio systems tools books building materials engines accessories New 6th EdItion has 280 81/2 x 11 pages information must serious modeler Suggested Retail $995 Better Hobby Shops Direct Yes rush copy new 6th edition Radio Control Buyers Guide Please check El Enclosed $1100 $995 retail plus $105 postage US Oanada Only dians send US Funds El Charge El Mastercharge D Visa Charge no__________________ Exp Date_________ Return H/c Buyers Guide 7 clifton House Olifton VA 22024 tient sold Bill Moore Anthony Kansas experiences graphical ly illustrate versatility design Bill Winter has asked relate no instructor kind available small village Bill three friends used Super Brig vehicle learn fly RC Although ever flown RC model bravely got together Sunday afternoon proceeded self instruct themselves Unable successfully take off dirt road flying least initially opted hand launch model after several ground loops Note recommend flying short grass hand launching Incredible may seem before sunset successfully taking off flying landing Super Brig! sure model exhibited some dinged wing tips scratched up nose several elastic bands popped off wheel pants long gone model nonetheless still flyable survived extraordinary flying session smoothing Out inevitable overcontrols beginners correcting its attitude getting re oriented forgiving errors flown model before would find story unbelievable must absolutely true single day highly stable extremely rugged relatively viceless model intro duced four total strangers joys hobby-sport love much know no higher recommendation prospective builder Timer Lid berg continued page 62 help clean lubricate timer Ignition electric models may have own peculiar characteristics provide own kinds satisfactions too Try might like em Note K Mart timers normally sell $496 bargain now marked down about $4 Other materials cited K&S aluminum sheet brass strip hobby shop Letters Editor continued page 12 before us happily punch away multiple functions little button transmitter visit area please join us day flying activities Vince Pacifico Plainview NY letter personal side Vince expressed some interesting thoughts hence its presence Besides often hit infamous oak tree Vince remember great guys names deleredand others Say hello Ships Pass Night just answering letters ed inquiry May MA about 1940 mystery biplane thought should take minute write thank-you note fine work days few others started hobby has source great satisfaction intervening years could 40 years beautiful model ever saw built Dean Barry designer biplane mentioned above red white green rubber pwd Caproni biplane made such impression can still picture 40 years later Awhile back tracked down plans 1 26 Model Aviation AAmco Inc have issued three NEW RIO kits last two years best challenged anyone industry BIG-H QUIIRAY 500 very newest RIO kit X RAY AAmco issue new kit just sake putting out another kit new kits well planned Modeler also create sales Dealers Distributors because R/O kits own selling!! WHAT IS NEXT? WATCH MR GUS modelers industry has need kit like MR GUS very long time Lou Andrews AAmco guy company will ssue Ek4 III I3AII IIO1X CO lIC
Edition: Model Aviation - 1980/08
Page Numbers: 62, 126
Make Own Timer. electric ignition models A Lid berg COMPETITION flying practical sport flying ignition engine old-timers electric free-flight models requires timer capable shutting off current 25 seconds prefer consistency mechanical Tickoff type timers options few com mercial ready-made switch-equipped timer type available 77 Products cost about $1600 However about two hours time can produce excellent timer about $700 using K Mart similar camera timer have spare Tick-off collection switch-converted timer can built little cost switch Ive made three timers have pleased operation Switch Two types Radio Shack switches readily useable timer lever micro type switch rated 5AI25OVac *275-016 $129 good ignition high current electric models other slide switch rated 03A/l2OVac #275-406 2 59g good ignition low current electric lever switch mounts front face plate slide switch mounts behind plate Timer Modifications No changes needed Tick-off timers unless timer will run long enough arm can repositioned turn increments necessary allow main spring unwind lower tension slow down K Mart Minori camera timers purchased would run about 18 seconds Unwinding mainspring under less tension provides some additional running time Look limiting devices screw through bottom plate K Mart lever output shaft runs stop Minori can removed allow extra rotation Some running time can obtained adding weight form solder escapement rectangular piece rocks back forth regulate speed Adding weight slows down rocking motion Carefully remove escapement loosening screws lower plate timer spreading upper Face Plate piece aluminum sheet iXi h tab end control wire allows room timer either type switch Make up control wire paper clip wire must contact side escapement after passing through slot face plate must capable swinging up out way activating timer laying out face plate put slide switch adjacent end timer allowing 1/32 clearance dust cover Locate lever switch Solder added escapement rocking piece controls speed unwinding slow down Ignition electric timers must capable running 25 seconds unmodified camera timers run about 18 seconds front face plate can actuated timer arm Cut off bend arms non-working end will clear switch Shine up face plate metal polish timer will look less like home-made project unusual very practical finish use fibergiass draftsmans eraser twisted fingers produce spot faced surface Cover kept clean inside timers can provide years service Vacuforming can pro duce neat light plastic cover youre lucky enough have ofMattells gadgets Useable covers can also made folded glued thin plastic sheet 1/32 ply Arm Make arm 025X brass bent needed make sure will contact move switch lever slide K Mart timer small spacer made tubing will required support arm near end output shaft Operation slide switch set-up bit convenient use because allows timer arm cranked around proper time setting before turning switch lever type switch timers control wire becomes control over current flowthe lever switch spring loaded timer arm shuts off Check completed timer carefully smooth continuous running especially under operating conditions mounted place engine motor running Erratic operation will likely due dirt gear teeth also may due added solder escapement touching rotating part Look shiny spots solder spray WD-40 will Continued page 126 62 Model Aviation lower plates apart Add much solder can interfering movement other parts 6 Owning RADIO CONTROL BUYERS GUIDE Like Having Information 260 Manufacturers Catalogs Guide has illustrations descrip tions prices 2400 radio control items information industry master catalog organized indexed cross-indexed easy reference Included latest model cars sailboats power boats aircraft radio systems tools books building materials engines accessories New 6th EdItion has 280 81/2 x 11 pages information must serious modeler Suggested Retail $995 Better Hobby Shops Direct Yes rush copy new 6th edition Radio Control Buyers Guide Please check El Enclosed $1100 $995 retail plus $105 postage US Oanada Only dians send US Funds El Charge El Mastercharge D Visa Charge no__________________ Exp Date_________ Return H/c Buyers Guide 7 clifton House Olifton VA 22024 tient sold Bill Moore Anthony Kansas experiences graphical ly illustrate versatility design Bill Winter has asked relate no instructor kind available small village Bill three friends used Super Brig vehicle learn fly RC Although ever flown RC model bravely got together Sunday afternoon proceeded self instruct themselves Unable successfully take off dirt road flying least initially opted hand launch model after several ground loops Note recommend flying short grass hand launching Incredible may seem before sunset successfully taking off flying landing Super Brig! sure model exhibited some dinged wing tips scratched up nose several elastic bands popped off wheel pants long gone model nonetheless still flyable survived extraordinary flying session smoothing Out inevitable overcontrols beginners correcting its attitude getting re oriented forgiving errors flown model before would find story unbelievable must absolutely true single day highly stable extremely rugged relatively viceless model intro duced four total strangers joys hobby-sport love much know no higher recommendation prospective builder Timer Lid berg continued page 62 help clean lubricate timer Ignition electric models may have own peculiar characteristics provide own kinds satisfactions too Try might like em Note K Mart timers normally sell $496 bargain now marked down about $4 Other materials cited K&S aluminum sheet brass strip hobby shop Letters Editor continued page 12 before us happily punch away multiple functions little button transmitter visit area please join us day flying activities Vince Pacifico Plainview NY letter personal side Vince expressed some interesting thoughts hence its presence Besides often hit infamous oak tree Vince remember great guys names deleredand others Say hello Ships Pass Night just answering letters ed inquiry May MA about 1940 mystery biplane thought should take minute write thank-you note fine work days few others started hobby has source great satisfaction intervening years could 40 years beautiful model ever saw built Dean Barry designer biplane mentioned above red white green rubber pwd Caproni biplane made such impression can still picture 40 years later Awhile back tracked down plans 1 26 Model Aviation AAmco Inc have issued three NEW RIO kits last two years best challenged anyone industry BIG-H QUIIRAY 500 very newest RIO kit X RAY AAmco issue new kit just sake putting out another kit new kits well planned Modeler also create sales Dealers Distributors because R/O kits own selling!! WHAT IS NEXT? WATCH MR GUS modelers industry has need kit like MR GUS very long time Lou Andrews AAmco guy company will ssue Ek4 III I3AII IIO1X CO lIC