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Forum: Flight Testing

20th Jul 2012, 22:59

Replies: 40

Machmeter

Views: 22,053

Posted By 18greens

Sorry pugilist, I'm not letting you get away with...

Sorry pugilist, I'm not letting you get away with that explanation. True in a closed environment p varies with t. But in the real world a static t can exist with many different ps at the same...

Forum: Flight Testing

19th Jul 2012, 16:50

Replies: 40

Machmeter

Views: 22,053

Posted By 18greens

One thing I've always wondered is.... I...

One thing I've always wondered is....

I understood the speed of sound is faster in denser environments so it varies with pressure not temperature. But he formula is based purely on temperature not...

Forum: Flight Testing

1st Jul 2012, 19:54

Replies: 40

Machmeter

Views: 22,053

Posted By 18greens

Ooops sorry. Looking forward to seeing the...

Ooops sorry. Looking forward to seeing the derivation.

(Edit - in fact i just googled it. Not sure I'm any more 'complete' for knowing it.) Why do you want to know it?

Forum: Flight Testing

1st Jul 2012, 08:31

Replies: 40

Machmeter

Views: 22,053

Posted By 18greens

Speed of sound in kts =38.94* sqrt absolute...

Speed of sound in kts =38.94* sqrt absolute temperature

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