M61A1 Posted October 15, 2012 Share Posted October 15, 2012 Mach is a relative term. It is the ratio of air speed to the local speed of sound. So if you can do mach 1 at 10,000', then you should be able to do it at sea level.Unless the humidity comes into play (as stated earlier). That might be the reason I guess. More humidity at sea level, less compressibility because the Oxygen and Nitrogen molecules of the air are replaced by lighter water molecules. That was Wiki says anyway. I don't mind citing Wiki. Of course, I never finished school. The speed of sound (mach) changed with density and temperature. this site has a calculator. www.grc.nasa.gov/WWW/k-12/airplane/sound.html Link to comment Share on other sites More sharing options...
flyerme Posted October 15, 2012 Share Posted October 15, 2012 yay he did it..and broke the sound barrier,think it was some 1300kmh..He got into a flat spin but was able to control it somewhat..brave very brave..or incredibly stupid? Link to comment Share on other sites More sharing options...
Guest ozzie Posted October 15, 2012 Share Posted October 15, 2012 flying dog you can read about joe's jumps here. http://en.wikipedia.org/wiki/Joseph_Kittinger Link to comment Share on other sites More sharing options...
Guernsey Posted October 15, 2012 Share Posted October 15, 2012 Well said; I must say that I have employed a similar method. Good to see you on the Forum Slarti, we haven't see much of you in the last 1-2 years. He couldn't get past that damn ' sound barrier '. Alan. Link to comment Share on other sites More sharing options...
Sapphire Posted October 16, 2012 Share Posted October 16, 2012 [quote="flying dog, post: 247097, member: 555". Question/s: 1 - If people keep breaking the sound barrier, who is the poor person who has to keep fixing it? Don't look at me-I didn't break nuttin in the last 10 minutes:crying: Link to comment Share on other sites More sharing options...
Guernsey Posted October 16, 2012 Share Posted October 16, 2012 That Barrier cannot be very sound if people keep on breaking it. 2 Link to comment Share on other sites More sharing options...
Bandit12 Posted October 16, 2012 Share Posted October 16, 2012 Striking new photo evidence raises questions over Baumgartner jump authenticity Link to comment Share on other sites More sharing options...
flying dog Posted October 16, 2012 Share Posted October 16, 2012 No, I think Optus are just trying to be a bit "One man up" on him. Link to comment Share on other sites More sharing options...
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