Hi Paul,
I have been researching PSRU's for piston and rotary engines during which I
found your site, I have looked at and read everything on your very
interesting site, which is the most comprehensive on the net.
You have obviously spent a lot of time working on rotary engines and
designing components to make
them into aircraft engines.

I see that you have designed and built a number of PSRU's and recently a
design for a light weight PSRU using a large diameter hollow prop shaft,
which I assume is a development incorporating of all the experience gained
from previous designs, test and air time.

As I wish to make a PSRU for my own engine I thought you might have some
working drawing of the designs that has been most reliable or the latest
design that you might be prepared to supply me.

I note that you use the gears from a Ford auto transmission, could you
supply these parts and give me some idea of the cost as I am not sure if
they are available in the UK,with part numbers and details of the
transmission I could try to find them.

I know PSRU's are a critical part of all engine conversions and they have to
be well designed and constructed also that most people who have designed
units in the past are reluctant to let others
use the design for fear of the legal consequences.

I am an engineering designer and consultant in the plastics industry, I have
a well equipped workshop and also am well placed to source the components I
cannote make in my own workshop.
I look forward to receiving you comments
Geoff Pearce

Cheshire  England

The hollow shaft version has not been built yet but you are welcome to
use the design. I can work with you by email and help solve any problems
that might arise. If you just want to fly I highly recommend Tracy
Crooks redrive. Real World Solutions. We have a guy in Brisbane Aus working
on a bell housing casting you might be interested in. Also he is working
on his own PSRU design.

I added you to our news letter email list.

Yes we have a source for the Ford TX parts. Slauson transmission parts
in Compton California USA. They run about $225 US for the complete 
six pinion planetary gear set. Shipping and handling extra.

What CAD program are you using? I use Rhino but I can export a wide
range of file formats.
 
Paul Lamar
 
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