conversion....

Greg Hermann bearbvd at sni.net
Sat Jan 2 19:01:21 GMT 1999


>anyone know how to convert inches(mg?) manifold pressure (aviation) to
>psi?
>thanks,
>rog

29.92 inches of mercury = 14.69 psia=1 atmosphere.

So, 1 inch of HG =  .491 psi.

Going on memory of the numbers, this is plenty accurate for engine work,
but DO NOT use it for calibrating an altimeter which might be depended upon
to keep you from flying into the ground (As in SPLAT :-(  !!! )

Regards, Greg





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