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On Sun, 18 Mar 2007 06:21:07 -0800
"Al Gietzen" <ALVentures@cox.net> wrote:
one caveat.. 12 psi over ambient at sea level is not the same as 12 psi over ambient at altitude. Keep that in mind when plotting.
Dave
Not sure what you mean, Dave. At any altitude it is ambient plus cap
pressure. At sea level the system pressure is 14.7 + 12 = 26.7
psi(absolute); and at 15000 ft it is 8.3 + 12 = 20.3 psia. Or am I missing
the point?
Al G
I found this chart at a http://tpub.com/. Adjust for altitude by
reducing the gage pressure by the reduction in pressure below sea level.
(Effectively, the same thing Al G. said.)
This look like a neat site. I'm going to have to explore for a while.
Bob W. --
N93BD - Rotary Powered BD-4 - http://www.bob-white.com
First Flight: 11/23/2006 7:50AM - 3.8 Hours Total Time
Cables for your rotary installation - http://www.roblinphoto.com/shop/
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