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Old 11-28-2004 | 03:11 PM
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Motorboy
 
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From: Bergen, NORWAY
Default RE: Calculating compression ratio

"Compression ratio" has nothing with valves/ports when they are closed, it is wrong to calculate compresion ratio.

See at the picture from "Model Aero Engine Encyclopaedia" 1969..

Jens Eirik
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