Assuming hellothere's statements are correct, a simplified version is:

Density Altitude = ((Fe / 500) + Tc + 10) X 120

Where Fe = Feild Elevation and Tc = Field Temp in Celcius

Dennis.



hellothere.adelphia.net wrote:

One easy way is to find out the temp at the field you are at. Take the
standard sea level temp of 15C and using the altitude of where you are
at, subtract 2C for every thousand feet. For every 1 degree above
standard, add 120 feet, or 600 feet for every 5C. Add that to the
field altitude. Gives you a great ballpark idea in no time.

Example: 3,000 foot field at 20C
15C - (3 x 2) = 9C (should be standard temp for that altitude)
20C - 9C = 11
11 x 120 = 1320
3000 + 1320 = 4320 density altitude




Dennis Hawkins
n4mwd AT amsat DOT org (humans know what to do)

"A RECESSION is when you know somebody who is out of work.
A DEPRESSION is when YOU are out of work.
A RECOVERY is when all the H-1B's are out of work."

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