Subject: 20B pusher motor mount
From: Rotary Engine
Date: 12/6/2008, 3:26 PM
To: AAA Put this in the To box


Anybody selling a 20B pusher mount?  My velocity airframe is complete(!)
and i am gearing up for engine and instrument install.  Al Gietzen
modified a Franklin mount, but my welding skills are...subpar, to say
the least.

Also, I have decided to go turbo, not supercharger.  What turbo did Tom
Parkes use on his ES and what is the latest version of the
turbocalculator spreadsheet program?

jeremy solomon

Jerry Hey can build you a motor mount. Make a sketch of the
firewall hard point locations and the distance from the firewall
to the prop flange. We have a few designs but we need to double check.

Do you have your turbo and water cooling plumbing decided? You should
do that before a motor mount can be designed and built. Here are a few suggestions. Do you have 3D drawing capabilities? If not I suggest making
foam mock ups of all the parts and located them before proceeding with
the motor mount design. I'll do a 3D for free after you decide where
you want to put things and you have a turbo manifold and waste gate
chosen.

Tom Parkes can answer the turbo question.

Here is Dave Leonards turbo calculator but I am not sure it gives
you enough info to insure the turbine will live under aircraft conditions.
At least half a dozen car turbos have been destroyed so far.
You are much more likely to get the turbo to live if you use an
aircraft turbo. It's a long story but car turbo charger can be modified
to slow the turbine so they will live. Easier to find an aircraft turbo
and use it.

Paul Lamar
-- 
The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
Youtube key word UTUBPLEASE
Copyright 1998-2008 All world wide rights reserved.