Subject: Rear engine mt
From: ACRE
Date: 5/21/2004, 9:00 AM


Jerry Hey wrote:

Paul,  have  you had a chance to consider placing a single Barry
centered in hat section at rear of the engine?    I am still thinking
that the arms of the "X" brace could meet at  the weld bushing.   A
way
to deal with  vertical  forces would be the issue.  Not  a problem for
TWs or conventional RVs because small tubes can be run from the top of
the gear receivers and welded in.  Also, not a problem for aircraft
with plywood fire walls, as a brace can be easily placed anywhere.  A
little more of a problem with sheet metal firewalls  but no more so
than what we are doing now.  In these latter cases the brace would
have
to be bolted.

If this seems like a good  idea and passes the Rhino test,  I will
build a prototype immediately.

There may a joinery problem where the  tube from the outside Barry
joins with the  bushing at the lower corner of the firewall as the
angle between these two is very low.  Could you look at this when
using
the 30" Schertz?     Thanks,   Jerry


I am not sure I follow you Jerry. Can you send me a sketch of what you
have in mind.
Are you thinking of two rubber bushings at the rear.?  Jerry

Paul Lamar

No,  just one  bushing centered in a short (pan width)  hat section
across the rear of the engine. Ignore my last paragraph above.  It
relates to the front Schertz beam and is off topic for this  e-mail.
Jerry

I don't think that is a good idea. What we need back there is a way to
adjust the down thrust angle. Figure out a good way to use these left
and right hand thread rubber rod ends. These are perfect for the rear motor
mount. The 1/2 inch size is about right. Maybe welding some clips on the
stock steel pan.

Paul Lamar
 
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