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PD9
Original Poster
1,605 posts
55 months
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Eric Mc
67,846 posts
135 months
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It's been a long time in the planning. I hope all goes well.
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shakindog
176 posts
20 months
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Absolutely mental I gotta see that. If and when it happens
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PD9
Original Poster
1,605 posts
55 months
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In terms of velocity and pressures exerted will this effect the human body? Definitely very exciting though!
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Simpo Two
54,616 posts
135 months
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PD9 said: In terms of velocity and pressures exerted will this effect the human body? No, but it might affect it 
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Hackney
1,773 posts
78 months
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Eric Mc
67,846 posts
135 months
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PD9 said: In terms of velocity and pressures exerted will this effect the human body? Definitely very exciting though! Not doing anything that hasn't been done before - so the AFFECTS on the human body are already well understood. Just ask Joe Kittinger. http://www.youtube.com/watch?v=9MkB6NkQscI
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London424
2,794 posts
45 months
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Eric Mc said: PD9 said: In terms of velocity and pressures exerted will this effect the human body? Definitely very exciting though! Not doing anything that hasn't been done before - so the AFFECTS on the human body are already well understood. Just ask Joe Kittinger. http://www.youtube.com/watch?v=9MkB6NkQscI Is that right? I thought, though could be wrong, that this jump will be the first person to break the sound barrier in freefall. So not exactly been done before.
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Eric Mc
67,846 posts
135 months
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It was thought that Kittinger broke the sound barrier too. Although, with the air density so low at that altitude, breaking the sound barrier is not that big a deal and is hardly noticeable.
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London424
2,794 posts
45 months
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Pushed back until Tuesday now.
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robmlufc
2,929 posts
56 months
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T minus 6 hours
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y2blade
46,914 posts
85 months
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Eric Mc
67,846 posts
135 months
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BBC keep saying he will be the first mnan to break the sound barrier in free fall. Has Joe Kittinger's feat half a century ago been forgotten?
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Dan_1981
9,602 posts
69 months
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BBC claims that he only hit .97?
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Gokartmozart
1,000 posts
75 months
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Eric Mc said: BBC keep saying he will be the first man to break the sound barrier in free fall. Has Joe Kittinger's feat half a century ago been forgotten? I can only find quoted values of a maximum 614 mph, which would have been slightly below the speed of sound at -94F,( lowest temp Kittinger experienced), of 639 mph. So close to supersonic yes, but not actually exceeding the speed of sound.
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Eric Mc
67,846 posts
135 months
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Gokartmozart said: Eric Mc said: BBC keep saying he will be the first man to break the sound barrier in free fall. Has Joe Kittinger's feat half a century ago been forgotten? I can only find quoted values of a maximum 614 mph, which would have been slightly below the speed of sound at -94F,( lowest temp Kittinger experienced), of 639 mph. So close to supersonic yes, but not actually exceeding the speed of sound. But isn't the speed of sound also dependent on atmospheric density? At 100,000 down to 60,000 or so, the density is not that great.
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Eric Mc
67,846 posts
135 months
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Dan_1981 said: BBC claims that he only hit .97? I think they were never 100% sure but I read for years that he had broken the sound barrier. I'm sure they stated this in the BBC (ironically) documentary series "Reaching for the Skies".
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robmlufc
2,929 posts
56 months
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Eric Mc said: But isn't the speed of sound also dependent on atmospheric density? At 100,000 down to 60,000 or so, the density is not that great. Its mainly dependant on the air temperature. Pressure and density cancel each other out.
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Johnny
4,570 posts
154 months
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Been looking forward to this for ages now. Can't wait, and hope all goes to plan.
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AnotherClarkey
1,583 posts
59 months
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I don't think anyone is forgetting Kittinger and he doesn't seem to think this jump is useless - he is on the team. I think he was on Radio 4 a few months ago talking about the attempt and confirmed that he did not go supersonic on his jumps.
There seems to be a great deal of mutual respect between Kittinger and Baumgartner.
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