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Speed of Sound

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Old 16th Nov 2001, 22:55
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Post Speed of Sound

Some time ago, someone posted a formula for figuring the local speed of sound, I believe in knots that was simple and useful.

I can't remember what it was!!

Something like 39 x square root of the temperature in Kelvin?

Could a helpful soul re-post that formula with the particulars?
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Old 16th Nov 2001, 23:42
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a = 38.967854*sqrt(T+273.15)
where T is the OAT in celsius.

c.u.
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Old 17th Nov 2001, 21:15
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Arrow

Click on this useful site to have it worked out for you.
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