So, an American chap is going to skydive without a parachute
Discussion
Ayahuasca said:
To make him not die on hitting the net, the net has to be elastic.
An elastic net will throw him back into the sky at an unpredictable angle.
How does he plan to land from the altitude the net bounces him up to?
Can they make the net out of elasticated velcro, velcro covered skysuit and Robert's your mothers brother.An elastic net will throw him back into the sky at an unpredictable angle.
How does he plan to land from the altitude the net bounces him up to?
Actually electro-magnetic velcro and that would help with hitting the target.
Not entirely equivalent, but interesting. https://www.youtube.com/watch?v=o2xmAWS4akE
The prep that has gone into this is huge, the guy and his team have designed a series of lights to guide him towards the net because from height the net won't even be visible. The lights will change colour depending on whether he is on the correct course or not and he's already done loads of test jumps with a parachute which he opens at the last moment.
Nothing in this is being left to chance.
Nothing in this is being left to chance.
Jimbeaux said:
Ayahuasca said:
Jimbeaux said:
first minted in 1598 iirc.
Depends on the mint, the first ones from Lima were around 1570, if you find one it can be worth a hundred grand or so... 
Rather that, than somebody who jumps out of an aircraft with no parachute for kicks (wrestling the thread back on topic).
Ayahuasca said:
Jimbeaux said:
Ayahuasca said:
Jimbeaux said:
first minted in 1598 iirc.
Depends on the mint, the first ones from Lima were around 1570, if you find one it can be worth a hundred grand or so... Rather that, than somebody who jumps out of an aircraft with no parachute for kicks (wrestling the thread back on topic).
Ayahuasca said:
Jimbeaux said:
Ayahuasca said:
Jimbeaux said:
first minted in 1598 iirc.
Depends on the mint, the first ones from Lima were around 1570, if you find one it can be worth a hundred grand or so... Rather that, than somebody who jumps out of an aircraft with no parachute for kicks (wrestling the thread back on topic).
I am a bit of a treasure hunter myself. Off thread perhaps we can share some tales.ATG said:
KTF said:
garyhun said:
Is he going to hit that net at terminal velocity or does he have any aides to help slow the descent?
This is the key part as they are making a big thing about him not having a parachute but he must have something else to slow his speed.Let's say that the net has only 15 metres of give in it once he's put it in some tension, and we'll assume (unrealistically) that the retarding force on him is constant. He'll hit the net at about 120mph assuming he stays in an arched position all the way down.
v^2 = 2.a.s, so the acceleration, a, is v^2 /2.s
120mph is about 53m/s, we've said s is 15m, so the acceleration is 95ms^-2 ... that's about 10g which is at the very upper end of what a fast jet pilot would pull in a turn, but a fair bit less than he'd pull in an ejector seat. (At 10g, he'll stop from 120mph in about half a second, far less time than a pilot would have to endure a high g turn)
And the force is inversely proportional to the distance the net gives, so if it can slow him down over 30m, then he'll pull an average of about 5g, etc, etc
So the forces and impulses are going to be fine if he can hit the net ... if ...
KTF said:
Thanks for the calculations. I guess there is more give in the net otherwise he would black out when he hits it and experiences 10g which won't look good on TV?
Probably worth noting that pilots hit high g-forces when wearing a g-suit. Without one, you're looking at 6-7G before even most experienced people will pass out. Having hit 9G myself (with full g-suit), I can vouch for how unpleasant an experience that is!I know ive asked this earlier so apologies if there was no response as no one knows, but how can i watch this in the UK.
The Fox HD channel on sky doesnt seem to be showing it.
Red Bull TV dont appear to be showing it.
Sky News dont seem to be showing it (i know an outside shot but they had felix baumgartner's jump)
And a search for heaven sent doesnt show anything on Skys schedule.
Really want to watch it but figure it will be very early morning so donet really want to stay up just on the off chance.
Any help greatly appreciated.
The Fox HD channel on sky doesnt seem to be showing it.
Red Bull TV dont appear to be showing it.
Sky News dont seem to be showing it (i know an outside shot but they had felix baumgartner's jump)
And a search for heaven sent doesnt show anything on Skys schedule.
Really want to watch it but figure it will be very early morning so donet really want to stay up just on the off chance.
Any help greatly appreciated.
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