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AIRCRAFT ELECTRONICS  TOPICS  DIRECTORY

• ACCESSORY /SUPPLIES   (29)
  AeroMicro Home AeroMicro, Source of Electric rc Supplies...
  All Electric rc
  Dawnmist Studio
  Deans Connectors
  Design for rc models - Russia  
  Dymond Model Sport
  Electric R_C Resources
  Electronic Gadgets for Radio Control
  Electronic Model Systems/Jomar Products - Variety of electronic products and other accessories for R/C aircraft and boats.
  Electronix Express - Mail order, electronic components, tools for scratch builders
  Electronize Model Electronics
  Electrotek - Features the GEM 2000, multi-function onboard safety product for all categories of R/C models.
  ELV 
  EMS Jomar Official Web Site
  The EZONE    
  Fanfare Electric Flight
  Farnell
  Garrison Aerodrome: Darwin Garrison is the father of the EPP Push-E Cat and also carries a variety of handy electric flight supplies.
  gwS
  H and N Electronics Supersafe Solder Flux - Solder products for model railroad, model aircraft.
  McDaniel R/C - Glow Ignition, Servo Buffer/Amps and Reversers.
  Micro Avionics - Specialized electronics for the R/C Modeller.
  MODELAIR-TECH Electric R/C model aircraft products and engineering.
  NK Electronics - Nielsen-Kellerman, makers of the Kestrel pocket wind meter
  Newark Electronics, Catalog - Electronic Components  
  Robbe
  Sirius Electronics-TX Diodes bridging
  Tokyo Hobbies Corp
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  ALARMS   (1)
  Plane finder _ Lost Model Alarm
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• ACTUATORS   (2)
  How to make an actuator ( step by step )
  Magnetic Actuator Drivers
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• ANTENNA TIPS
  (FASTENERS)
  . A dress maker's straight pin poked  through the hollow section  fuel tubing so that the ball end fills up the I.D. of the tubing .Insert the antenna wire started through the fuel tubing and there will be enough friction to keep the wire from pulling out. Now, simply stick the pin into the top of the fin, or the side of the fuselage and pull the antenna taunt. The antenna will stay where you put it, but will move without breaking in the event of a large bump to the airframe.
  (INSTALLATION))
  Never exit the receiver antenna wire to the exterior of the fuselage by running it out via the wing saddle, or anywhere near the wing-fuselage joint. The vibration and relative movement between the two during flight will eventually sever the antenna wire. The proper method is to punch an exit hole in the fuselage, near the receiver location and away from exhaust residue. Obtain from any electronic store heavy sleaving material of the size that will allow the antenna to slide through. CA about a three inch piece of this sleaving in the antenna hole such that about a 1/2" or so is inside the fuselage. Pass the antenna wire through the sleaving and attach to the rear of the fuselage . However, before you pass the wire through the fuselage, put a strain relief on the wire inside the fuselage to prevent it from being pulled out of the receiver. The best and cheapest strain relief is either a button or a broken off portion of a servo output arm. Simply weave the wire through the holes in the button or servo arm about three times and its done. Make sure you position the strain relief on the antenna wire such that there is some slack antenna inside the fuselage when all is done.
  ( USAGES)
  Do not throw away broken Tx aerials. They are a good source of thin brass tubes which are very useful for bushes, small pushrods, tubing, guides, etc.
  Here's a few more hints on Securing the antenna wire.Use heat shrink tubing the size that just fits over the antenna wire (usually 22 ga wire). Heat the heat shrink tubing on to about the last inch or so of the antenna wire, leaving about three inches of the heat shrink extending beyond the antenna wire itself.
  You can then tie as many knots as you want in the heat shrink . Also The inner tubing of most flexible control rod (i.e NYROD, Goldenrod, etc.) makes a great fastening point for the receiver antenna. Glue a short piece (1/2" or so) to an appropriate place on the aft section of the fuselage (vertical or horizontal stab, fuselage side, etc). Run your antenna wire through the piece of tubing. Then wrap the antenna wire on the downstream side of the tube with just enough masking tape to prevent it from easily pulling back though the tube.
  INSTALLATION TIPS
  (BATTERY and RADIO PLACEMENT)
  Keep your weight forward. To balance a nose heavy aircraft, 1 oz. at the tail could be all it needs. While the same aircraft,
  if tail heavy, could take as much as 10 oz. or more to balance.Temporarily place the battery, receiver and servos in place and check the C. G. without adding dead weight.With everything Assembled.. it is easy then to add weight where you need it. Check also if the model is balanced laterally and add weight as required at the wing tips.
  Mike's R/C Website - Useful electronic projects for R/C by Mike Blandford.
  Radio Modelisme - Do-it-yourself radio systems from France.
  WattFlyer.com - Electric powered flight of both aircraft and helicopters. Includes discussions, photo gallery plus classifieds.
  SERVO POWER
  Multiple servos for single control functions are not uncommon.. For example, splitting the elevators using a separate servo for each side for control redundancy, or utilizing one servo for each aileron to eliminate complex linkages are now commonplace. For those of you that follow this practice keep in mind that your receiver expects a certain power draw for each channel. When you utilize a "Y" connector to connect two or more servos to
  a single channel, you increase the power draw at that channel substantially. Further, if you start doubling up servos and those servos are the big quarter scale variety, and then use long servo leads, then put the whole mess under flight loads, you can overload the power output section of your receiver and cause component failure. The power draw can be measured easily enough with a ammeter.
  The drawback to multiple servos is that you may get a drift in one or the other control assembly (Especially with large
  servo types.This can lead to a crash.  one servo. Modern computer radios ease this problem by allowing you to use two separate channels for the same control by mixing them together on the transmitter.
  Keep this in mind as a possible cause if you are getting inconsistent performance for you radio system.
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