Found this article that gives some general figures for FAE used by Russian forces in 2000. Need to think more about how this could work in game.
http://fmso.leavenworth.army.mil/doc...ir/fuelair.htm
Plus Global Security gives some general formulas for calculating distance to 1 PSI over pressure in this article. Using these might get us on the right track.
http://www.globalsecurity.org/milita...itions/fae.htm