Paul--

No, I do not have the cowl. The plans I have for the actual cowl are
very faded (the plans are over 45 years old) and much of the  detail  for
the interior is missing; however, it drawn on a 1:1 scale and the
distance from the firewall to the prop flange seems to be 33.75".  From
the top, (approx. 29" from firewall) the cowl does not narrow  until  the
nosebowl, at this juncture it appears to be 32" across--give or take.
The attached are PDF files of the "general arrangement" on a scale of
1:10 and all dimensions are given in inches.

If you need more info, I will dig up as much as I can.

Tom

OK Tom I 'll go with what I got so far.

-- 
Paul Lamar ...No rotor no motor.

Tom,  when using Tracy's drive, the minimum distance from the
firewall to the prop flange is around 36.75 inches.  This provides
the minimum space between engine and firewall to remove the water
pump.   I suggest  you consider using a prop to flange distance of 40
inches as this will leave room to mount stuff on the firewall and
also to route the exhaust.     Jerry

That is still open Jerry. There is a nose landing gear to contend
with. It may be greater than 40 inches.

Paul Lamar ...No rotor no motor.

Greater than 40 inches is fine.  I suggest 40 inches as a practical
distance  to have room for a nice installation and 36.75 inches as a
physical limit below which one may not go.   Jerry


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