Larry, Servo motor came from "Hobby Town" it is a HITEC HS-300. Size 1.6 x .8 x 1.4".
Plywood thickness was 1/4". I did build a small electronic control board for the management of the servo, but have lost the skematic since. Probably could find another copy on the web if necessary. It was not difficult to built. The servo uses 5 Volt power, I used a Radiio Shack volt regulator and tied the power into my 12 volt system. So far works great on the ground with plenty of sensitivity for control of the trim tab. Rob In a message dated 10/16/2004 7:05:39 PM Central Standard Time, lar...@socal.rr.com writes: Fantastic info, but I have a couple questions >I've got a servo motor doing my elevator trim. source, and size? > I used a (Radio Shack) rotary >potentiometer for the control (less than $5). I made a larger wheel for the >pot out of plywood, painted it black, turned it sideways and put it in the >instrument dash (lower left side in front of pilot). What is the thickness of the plywood that you used for the panel? 1/8" seems a bit too flexible. >I just recently put a white >tick mark on the wheel at the center position for trim. I do have >pictures on >my web site www.robert7721.com under instrument panel. Added to favorites, and THANKS! Larry Severson Fountain Valley, CA 92708 (714) 968-9852 lar...@socal.rr.com
