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Density Altitude

Asked by: 1774 views , ,
Aerodynamics, Airspace, General Aviation, Instrument Rating

Hello!

i have a question problem and need help!

Conditions: 5,893 feet MSL

Altimeter Setting:  30.9”Hg

Temperature:  25°F

Pressure Altitude: ________

Density Altitude: _________

Now, adjust the temperature to 50°F

Pressure Altitude:_____________

Density Altitude:_________

What effect does the temperature decrease have on pressure altitude? 

What effect does the temperature decrease have on density altitude?

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2 Answers



  1. Mark Kolber on Oct 31, 2020

    What effect does the temperature decrease have on pressure altitude?
    None. MSL altitude and altimeter setting are the only two variables in the equation,

    What effect does the temperature decrease have on density altitude?
    Higher temperature means higher density altitude. Lower temperature means lower density altitude.

    Better hit those books again!

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  2. KDS on Nov 01, 2020

    Galandi, a good place to go for an answer is AC 00-6B Aviation Weather, Section 4 of Chapter 5, Altimetry.

    https://www.faa.gov/documentlibrary/media/advisory_circular/ac_00-6b.pdf

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