Subject: engine mount
From: Rotary Engine
Date: 9/5/2006, 1:54 PM
To: AA-me



I am building an RV9-A, and will be using a 13B p-port. So I will  need an engine mount.
 I am not sure what "I have a fixture that can accommodate any  aircraft." means. Do you mean that you can supply an engine mount  for an RV9-A?
 In any event, I am interested.
 Doc
ddcuster at wmv-co.us
719-783-0245

Doc,  I can build a S-Beam rotary engine mount for just about  any
aircraft.  For example the last two built were for an Acro Sport  and the
Bush Caddy.  To begin with, I need a drawing showing the hard  points on
the firewall where the engine mount bolt on.  These should be  related to
the engine thrust lines vertical and horizontal. In other words the  top
right attachment point is xxx distance above the thrust line and xxx
distance to the right if the thrust line.  Also needed is the distance
of the prop flange from the firewall.  This info should be in the RV 9
plans.  Would you be using the Renesis or the 13B?

 Once you gather this data, send it to me and CC to Paul Lamar who  will
design engine mount.  Paul does not charge for this service.  The
benefit is a properly engineered engine mount specific to  your
installation.  Another advantage is that the design will become  part of
an archive that other RV9 builders will be able to use.
Once you are happy with the design I will quote a price.     Regards,  Jerry



Doc,
  I am Jerry's Acro Sport customer. Because my spools are welded in
they never end up exactly to print so I put a piece of plywood
against the end of the longerons and back drilled the holes for the
mount. While in plywood was bolted in this position I drew a vertical
centerline and a horizontal thrust line on the plywood then sent it
to Jerry. It came back a month later with an engine mount bolted to
it that fit my plane perfectly. The workmanship is excellent.
Randy



The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
Copyright 1998-2006 All world wide rights reserved.