On Sat, 21 Sep 2013 00:05:25 -0400, Ed Huntress wrote:

Note my drive shafts are supported at each end, I'm not sure
I'd want a 5" extension on an .049 without support. Also my tail rotor

I'd planned on a bearing at the far end, and a U-joint (ball and pin,
like on a model boat) at the near end.

--
Tim Wescott
Control system and signal processing consulting
www.wescottdesign.com