I found another small item to correct. It was really not a big deal, but
if you entered manifold pressures below ambient, the compressor pressure
calculation would show a negative number, which is of course not true in
the real world.

This in turn would lead to very low charge temperatures and would skew
other values.

I have fixed it so that even at low manifold pressures, the compressor
pressure ratio remains 1.


Regards,

Gordon.

Plug in some of these numbers for a four rotor and see what your spread sheet comes
up with. Also you need a look up table for VE verses RPM.

Paul Lamar ...No rotor no motor.

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