Mailing List flyrotary@lancaironline.net Message #25258
From: Ralph Reed <ralph_reed@sil.org>
Subject: Re: [FlyRotary] Re: 13b crankshaft
Date: Thu, 21 Jul 2005 15:33:33 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Does that mean that rotors 1 and 2 are farther apart than 2 and 3?
 
What fixes the two together?  Are there no 20B cranks that are all one piece? Why?
 
What is the smallest diameter of the shaft on either one and how much over built is it?
 
Could the 13B  be hollow and strong enough?
 
Thanks, Ralph
----- Original Message -----
Sent: Thursday, July 21, 2005 3:20 PM
Subject: [FlyRotary] Re: 13b crankshaft

Ralph,

The 20B utilizes a split shaft design.  The #1 stub-shaft slips over the snout of the 2-3 journal.  There is a 3rd main bearing between the #1 & #2 rotor. 

 

Mark

 


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