Dudley Henriques wrote:

I just
can't remember the Kollsman low pressure side maximum for our GA altimeters
here in the U.S. I think it's 27.5 or 25.5 but I can't remember exactly
which; and I need to have this for a data point.

Perhaps this will help.
http://www.ansys.com/industry/aerosp.../whittum1.html

George Patterson
Battle, n; A method of untying with the teeth a political knot that would
not yield to the tongue.