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· Registered
2006 STS-V
1,110 Posts
Discussion Starter · #1 ·
I’m watching the NHRA qualifying in Norwalk OH. They put up the track temp, air temp, barometer and then listed this,

Density altitude 2,310’
Elevation 651’

WTH? What is this and how is it calculated, measured, guessed?

What’s the density altitude at 2,310’ elevation? Higher? Lower? I don’t get it.

· Administrator
2002 F55 STS, 2014 Explorer XLT, F-150
80,404 Posts
The big NHRA stuff is so fast that air density affects run times. Air drag.

Same sort of reason why golfers adjust stroke and club number for Mexico City and Pebble Beach. You hit longer balls in Mexico City - 7400' altitude.
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