REFLECTOR: Pitch Trim Alternatives

[Andrew Ellzey]

Joe,

I would move your attachment point to your slider to the center of the rod. The position that you have chosen will cock your slider and make it grab your through bolt instead of sliding on the bolt. See revised document.

Andy Ellzey
  ----- Original Message ----- 
  From: Joe Ewen 
  To: Velocity Aircraft Owners and Builders list 
  Sent: Sunday, May 13, 2007 4:12 PM
  Subject: REFLECTOR: Pitch Trim Alternatives


  I am looking into alternatives to the stock factory pitch trim.  Due to installed instrumentation, I do not have room for the factory stock pitch trim spring.  I was considering the Strong Pitch Trim, but due to 1 negative report and the fact that I have electronics installed in the keel that would interfere, I have been looking for alternatives.  One idea I am considering is using a spring linkage driven by a servo motor.  The servo would be autopilot grade (mechanics disengaged when power is off) and the linkage would have enough spring travel to facilitate full elevator travel in the event the servo was stuck in either extreme.

  I am looking for comments and suggestions on the attached pdf as well as any other alternatives.

  Thanks,
  Joe




------------------------------------------------------------------------------


  _______________________________________________
  To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector

  Visit the gallery!  www.tvbf.org/gallery
  user:pw   Check new archives: www.tvbf.org/pipermail
  Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.tvbf.org/mailman/private/reflector/attachments/20070514/9e4ef9cf/attachment-0001.htm 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Trim Working revised.pdf
Type: application/pdf
Size: 48475 bytes
Desc: not available
Url : http://www.tvbf.org/mailman/private/reflector/attachments/20070514/9e4ef9cf/attachment-0001.pdf