-- 
Paul Lamar ...No rotor no motor.
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According to my calcs, his numbers are too high.  I worked it a bit
differently; about 28% of the fuel energy goes to output, 18% goes to the
coolant, and about 7% goes into the oil.  Depending on the source and the
assumptions these numbers vary just a bit.

100hp is 4250 Btu/min.  Divide by .28 says fuel burn is 15,100 Btu/min.
Multiply by .07, and you get 1060 Btu/min into the oil per 100 hp out.

I used a specific heat for oil of 0.6 Btu/#/F, and 7 lbs/gal.  Close enough.
Then for a 30F temp change the flow rate is 8.5 Gpm.  For delta T of 20F
you'd need about 12.7 gpm.

Al (test mods to oil cooler air inlet ready for flight test, but I haven't
felt well enough to fly- maybe tomorrow).

Thanks Al.

BTW IMHO you need to fix all the air leaks. Diffusers change velocity
to pressure and they can't do that unless there are no leaks.

The news letter will be shut down for an OSH week.
-- 
Paul Lamar ...No rotor no motor.

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