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Felix Baumgartner

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You need air to produce a sonic boom. For the first part of his fall there is not much air up there, but, he will eventually be meeting enough air at some stage to suddenly build up to and produce a sonic boom. Problem is, he only has a suit, so the sonic boom could technically: knock him out, knock him senseless or he could lose control and spin wildly etc.

 

Very dangerous stuff indeed. Most people have an aircraft/spacecraft around them to protect them when they produce a sonic boom.

 

Anything going through any air faster than sound will produce a sonic boom...including Felix.

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You need air to produce a sonic boom. For the first part of his fall there is not much air up there, but, he will eventually be meeting enough air at some stage to suddenly build up to and produce a sonic boom. Problem is, he only has a suit, so the sonic boom could technically: knock him out, knock him senseless or he could lose control and spin wildly etc.

 

Perhaps, but it was my understanding that the drogue parachute would deploy before the air pressure gets too great and he'll gradually fall below mach - way before the shock waves become strong enough to cause such an imbalance.

 

 

Anything going through any air faster than sound will produce a sonic boom...including Felix.

 

Not true, an aircraft travelling fast enough (and high enough) would eventually have a sonic wave angle of zero whereby the air reverts to "clinging" onto the aircraft. (tried and failed to find the source for this - will keep trying though)

 

Edit: Cited in here http://asadl.org/jasa/resource/1/jasman/v51/i2C/p686_s1?isAuthorized=no, sadly not free though

Edited by Scotteo

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It's pretty impressive that Joseph Kettinger was doing a similar type of freefall back in 1960 with less tech then. He probably did it in a tweed suit and complained his pipe went out half way down thumbsup.gif

 

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Anything going through any air faster than sound will produce a sonic boom...including Felix.

 

Not true, an aircraft travelling fast enough (and high enough) would eventually have a sonic wave angle of zero whereby the air reverts to "clinging" onto the aircraft. (tried and failed to find the source for this - will keep trying though)

Technically it would not be 'going through air' in those conditions though, rather 'riding the air below' much like a surfer rides the water? Edited by Albert Tatlock

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Depends how little gas within a given volume needs to be present for it to be classed "air"!

 

What I really enjoy about this whole event and discussion is that even NASA are unsure exactly what will happen when he reaches supersonic. The great Urghknown visited once again :)

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has an idea to a) make money and b) promote the IOM

 

set up an IOM company to sell lottery tickets - with the prize being an edge of space jump. (lottery would be like that of the "win a car" type at airports)

 

looks like the set-up / 1st drop costs would be:-

 

balloon $241,000, helium $70,000, suit $200,000, capsule $200,000 (est), ground crew $150,000 (est) = $861,000 say

 

sell 10,000 tickets for each jump at say $150 each = $1.5m

 

hold the money in trust until enough tickets sold to cover costs

 

tickets sold on basis of refund say 75% if not enough sold so 25% retained for admin costs

 

presume some of the kit is re-usable.

 

odds are a 1 in 10,000 chance of winning for only a $150 outlay

 

comments / backers please

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Anything going through any air faster than sound will produce a sonic boom...including Felix.

 

Not true, an aircraft travelling fast enough (and high enough) would eventually have a sonic wave angle of zero whereby the air reverts to "clinging" onto the aircraft. (tried and failed to find the source for this - will keep trying though)

Technically it would not be 'going through air' in those conditions though, rather 'riding the air below' much like a surfer rides the water?

The boundary layer effect is at work here.

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has an idea to a) make money and b) promote the IOM

 

set up an IOM company to sell lottery tickets - with the prize being an edge of space jump. (lottery would be like that of the "win a car" type at airports)

looks like the set-up / 1st drop costs would be:-

balloon $241,000, helium $70,000, suit $200,000, capsule $200,000 (est), ground crew $150,000 (est) = $861,000 say

sell 10,000 tickets for each jump at say $150 each = $1.5m

hold the money in trust until enough tickets sold to cover costs

tickets sold on basis of refund say 75% if not enough sold so 25% retained for admin costs

presume some of the kit is re-usable.

odds are a 1 in 10,000 chance of winning for only a $150 outlay

comments / backers please

Interesting idea.

 

However, would also require:

- Sales & Marketing costs - departure lounge pitches don't come cheap, staff costs

- Capitalisation and licensing costs for the gaming company & license, possibly in multiple jurisdictions

- Insurance costs (life/injury, liability) for the winner could be significant. I suspect that it might be optimal for the organiser to source this cover and include it in the ticket price - in order to reduce the possibility of getting sued by the winner, or their family.

 

Also, competition from the suborbital space tourism operators, or competitions with a ticket on their vehicles. Target market for, as an example, a Virgin Galactic seat prize for a USD50 ticket will be much broader than that for a crazy supersonic freefall.

 

Also, would it count as a Suborbital Reusable Launch Vehicle, with the passenger classified as a space flight Participant and therefore require FAA licensing and compliance with US 14 CFR Pts 440-460?

 

I expect to see quite a few more "win a trip to space" competitions (so far, Virgin, Boston Metro Daily, New Scientist/Audi, Comic-Con, KSC, Seattle Space Needle, Guinness, Intel , Gillette, Volvo, 7UP, then I stopped looking...)

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Eh? The sound barrier has been broken in free fall before, ya know?

 

But all the reports are bigging it up as the first skydiver to do so. Did the ones to which you refer just hit the ground without a parachute?

 

Looks like I'm wrong actually, I thought that Kittinger had exceeded Mach 1.

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has an idea to a) make money and b) promote the IOM

 

set up an IOM company to sell lottery tickets - with the prize being an edge of space jump. (lottery would be like that of the "win a car" type at airports)

 

looks like the set-up / 1st drop costs would be:-

 

balloon $241,000, helium $70,000, suit $200,000, capsule $200,000 (est), ground crew $150,000 (est) = $861,000 say

 

sell 10,000 tickets for each jump at say $150 each = $1.5m

 

hold the money in trust until enough tickets sold to cover costs

 

tickets sold on basis of refund say 75% if not enough sold so 25% retained for admin costs

 

presume some of the kit is re-usable.

 

odds are a 1 in 10,000 chance of winning for only a $150 outlay

 

comments / backers please

 

 

Insurance cost: £6 trillion squillion pounds

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has an idea to a) make money and b) promote the IOM

 

set up an IOM company to sell lottery tickets - with the prize being an edge of space jump. (lottery would be like that of the "win a car" type at airports)

 

looks like the set-up / 1st drop costs would be:-

 

balloon $241,000, helium $70,000, suit $200,000, capsule $200,000 (est), ground crew $150,000 (est) = $861,000 say

 

sell 10,000 tickets for each jump at say $150 each = $1.5m

 

hold the money in trust until enough tickets sold to cover costs

 

tickets sold on basis of refund say 75% if not enough sold so 25% retained for admin costs

 

presume some of the kit is re-usable.

 

odds are a 1 in 10,000 chance of winning for only a $150 outlay

 

comments / backers please

 

 

Insurance cost: £6 trillion squillion pounds

surely not - just have it as one of the T&C's that the entrant/jumper isn't insured and that its their own responsibility.

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Get off Manx Forums Stabby, no one ever admits that they're wrong here smile.png

 

That wasn't me, that was some other sirstabby

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