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Old 05-24-2013, 12:23 AM   #4 (permalink)
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Quote:
Originally Posted by Old Tele man View Post
Uh, 29.92-inches Hg is associated with BAROMETRIC pressure, not MANIFOLD pressure. Typically, MANIFOLD vacuum (normal aspiration)/pressure (turbo or supercharge) are measured in XX-0-14.7 PSI or ±0-30 "Hg...without decimal places.

I meant that with engine off it reads about 30, at sea level and shows absolute pressure just exactly like the one in every airplane with a controllable pitch propeller. I do nit need Kollsman window accuracy.
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