http://www.grc.nasa.gov/WWW/K-12/airplane/sound.html
sea level speed of sound is 761 mph
90,000 ft the speed of sound is 670 mph.
It looks like if Kittinger hit 714 mph and was over 18,000 ft. he was doing the speed of sound or better.
Richard
N99904
At 02:11 PM 1/21/2004 -0700, MAGIC VAC wrote:
----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----You're wrong!!! Actually, speed of sound increases as altitude decreases. Thus speed of sound is slowest on a very cold day in Death Valley. Thus, temperature doesn't matter, density altitude does.
Larry
- ----- Original Message -----
- From: [EMAIL PROTECTED]
- To: [email protected]
- Sent: Wednesday, January 21, 2004 1:28 PM
- Subject: Re: [COUPERS-FLYIN] Kittinger
- ----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]----
- I thought the speed of sound decreases with temperature. Which would decrease as altitude increases. Therefore making a slower speed of sound at 90,000ft. Please correct me if I am wrong.
- Scott
- N94428
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