I have been fooling around with the 3D again and I decided
to change the Reno racer design. I always worried about those belt
drives taking 1000 HP. This design uses two Bell 47 final drive
gear cases just like Dave Garber's airplane. According to Bell they are
good for 1000 HP at 6000 RPM input revs.

Sort of a half or 3/4 scale P38. The liquid to air intercoolers
are fed with acetone and dry ice. The pilot will sit behind the
spar.

Paul Lamar

I decided to focus on the Sport class as the three, 3 rotor engine Unlimited 
version will required a much longer fuselage to get the CG where it needs to be.

Here is my latest iteration of the Sport class racer.
The combined intake manifold and two pass  air to ice water intercooler 
is crucial to the success so I drew it up so everybody could see how it 
works. The green adapter plate is made from phenolic to insulate the air 
to water intercooler from the engine heat.

The ice water tank is behind the pilot
and enough ice water is put in it to move the CG into the right range.
Since it is not used up (merely heated as the race progresses) the CG stays 
in the right place.

I have another idea I am working on for a combined oil pan and oil cooler.

Paul Lamar
 
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