Fred Osborn wrote:

Does anyone have a drawing or photo of a 20B e-shaft that
shows how the shaft sections are joined ? I also need the
approximate dimensions of the e-shaft joints.

I am trying to determine the feasibility of making a single
rotor e-shaft from 2 pieces of a standard 13B e-shaft. If
feasible, this could avoid the precision bearing grinding
and hardening steps normally required.

Fred,

What exactly do you want for pictures and what dimensions do you need.  Got
one 2 piece  20b shaft in the garage, waiting to be put back together.
Taking it for show and tell at our EAA chapter meeting thursday.  They look
at me like I'm off the deep end,  know something they don't, or thoroughly
confused. Hint, most fly rotaxes.......

Barny
MGDQ

Barny,

I assume that the shaft joint is to the right of the center
bearing in Paul's Centric_shafts.JPEG (thanks Paul). What I
would like to see is the "male" section of that joint. I
believe it's tapered and if you could give me the length of
the taper and its large and small diameters (all
approximate) I would appreciate it.

If you would prefer to go off-line it's <fosborn@infowest.com>

Thanks,  Fred O.

While you are at it Fred make a couple of four rotors :)

Paul Lamar
 
The AirCraft Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2002 All world wide rights reserved.