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mhcasey · May 11th, 2008, 15:12

From a random FAA handout: "Humidity is not generally considered a major factor in density altitude computations because the effect of humidity is related to engine power rather than aerodynamic efficiency."

My meteorology prof used to say something to the effect of, "H20 is a lot smaller than 02 and N2, so moist air is typically less dense."

So does humidity have a significant effect on density altitude, or not?

May 11th, 2008, 15:12	#1
mhcasey Senior Member Join Date: Mar 2006 Location: Austin Posts: 483	Humidity and Density Altitude From a random FAA handout: "Humidity is not generally considered a major factor in density altitude computations because the effect of humidity is related to engine power rather than aerodynamic efficiency." My meteorology prof used to say something to the effect of, "H20 is a lot smaller than 02 and N2, so moist air is typically less dense." So does humidity have a significant effect on density altitude, or not? __________________ Please help me in the fight against cancer by asking me about the Texas 4000 for Cancer or by visiting our website at http://www.texas4000.org/.