Jerry,
You may have discovered this already but the only center to center
distance you can use for the Kis MM rubber bushings is 25 inches because
of the tilt in the Kis firewall hard points top to bottom.
This assumes you are using the P51 type beam mount as shown in this
drawing. This keeps the P51 beam all in the same plane. Required
for structural reasons. I just discovered this myself. Interesting.
If the fire wall hard points were vertically aligned top to bottom any Schertz
beam width could be used with a P51 type beam mount.

I could be wrong about this but it is a little tricky to lay out.
In any event this will work as shown.

The lower beam in the right hand sketch has been rotated into the vertical
position to calculate the true length of all the tubes.

It should fit in the cowl but I will know more about that tomorrow.

Paul Lamar

The P51 beam is all in the same plane as viewed directly from the front.
Can't that plane be canted inward toward the engine, to narrow the
c-to-c distance on the rubber bushings? You still have some type of
lateral supports, right?

Perry

After thinking about it some more yes you are right Perry. It just becomes 
more tricky to layout. I just need to practice some more with Rhino on that.
Yes there is lateral support coming. I just wanted to warn Jerry about the
layout problem.
 
BTW I just figured out a better way of squeezing in a tuned tangential
muffler. A sheet metal panel can be welded to the out side that becomes
a part of the side skin on the cowl. This would allow streamlining the
side exhaust pipe with metal. 


Paul Lamar
 
The Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2004 All world wide rights reserved.