@6cfn
Given the low altitude that answer would be ok in an interview situation with no aids. In reality the number you got is a little on the low side. The conversion changes with altitude:
1 mb = 27 feet at sea level
1 mb = 50 feet at 18000 feet
1 mb = 100 feet at 39000 feet
Correct answer would be 3640.7 feet using the real formula.
h2 - h1 = 221.1T (logP1 -logP2)
Last edited by MilPilot; 6th Mar 2011 at 08:52.