Re: Range card format Help
Density altitude is the altitude of the standard atmosphere (sea level, 29.92 in/Hg, 59F) at which the air density would be equal to the actual air density at the place of observation. If you are standing at sea level with the standards described above and the temperature changes to a higher temperature, lets say 90F, your density altitude would then be greater than sea level or 0 ft.
I guess you could say DA is the altitude the bullet "thinks" it's flying thru using the standard as reference.
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