Subject:
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Re: Talk about Acceleration...
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Newsgroups:
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lugnet.org.ca.rtltoronto
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Date:
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Wed, 5 Dec 2001 00:58:19 GMT
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Viewed:
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440 times
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"John Guerquin" <jguerquin@sympatico.ca> wrote in message
news:GnuGsH.1nJ@lugnet.com...
> > It accelerates to that speed, via a pneumatic launch system, in *two*
> > *seconds*.
> >
> > Zero. One. Two.
> Pretty impressive coaster Iain....
> Assuming constant acceleration (which it probably isn't), that works out to
> 24m/s/s, which is about 2.4g's. I wonder how many people will find that
> unpleasant!!! (I certainly wouldn't)
It's so decieving in a feel-good kinda way. You can pull upward of 5g on
several coasters - Mindbender at the West Edmonton Mall, I believe, still
holds the record at somewhere just beyond 6g. But that's pushing straight
down on the body, and the train is moving at a relatively constant speed
through the inversions that generate that high downward force. On Dodonpa,
and any launched coaster, it's so much more thrilling because you're
accelerating that entire time in a forward direction - that is to say,
you're speeding up. The sense of "Oh crap, now suddenly I'm moving" is just
fantastic. Launched coasters are my favourite - and they're becoming far
more common now, although most of them use linear motors to accelerate the
train.
> I'm guessing the technology is similar to that used on steam-powered
> catapults on aircraft carriers. Those accelerate 48,000 lbs worth
> of plane from 0 to 165mph in 2 seconds. Assuming constant
> acceleration again, that's 36.7 m/s/s or 3.7g's.
>
> http://www.chinfo.navy.mil/navpalib/allhands/ah0197/pg08-09.html#fly
I got to stand in the mechanics room of an aircraft carrier once. The
cylinder was a lot smaller than I thought it would be. They use a compound
pully system to get more stroke out of the cylinder.
> Pretty close!!!! So............. if you can't become a US Navy fighter
> pilot, go ride the coaster..... ;)
If you're North-America stuck, you can go ride it's prototype at Paramount
Kings Dominion in Richmond, Virginia. It's called Hypersonic/XLC, and
launches from 0-130 km/h in 1.8 seconds. Similar acceleation, slightly lower
top speed. It's an EXTREMLY Short ride, however! The ride time is sometihng
like 20 seconds from launch to brake.
Next year is kinda gonna be a dud year, methinkis... "X" is still not open
http://www.twistedrails.com/sfmm2k1/dec01.shtml - anyone with an interest
in mechanics should definately take a look at those trains, see if you can
see what makes them special :) )...
Iain
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Message has 1 Reply: | | Re: Talk about Acceleration...
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| (...) I Think I know... This is the ride that the seats are placed on either end of the track, on a seperate axis. At specific times during the ride the seats can spin around a full 360 degrees, or hang upside down, even though the train is on a (...) (23 years ago, 5-Dec-01, to lugnet.org.ca.rtltoronto)
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Message is in Reply To:
| | Re: Talk about Acceleration...
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| (...) Pretty impressive coaster Iain.... Assuming constant acceleration (which it probably isn't), that works out to 24m/s/s, which is about 2.4g's. I wonder how many people will find that unpleasant!!! (I certainly wouldn't) I'm guessing the (...) (23 years ago, 5-Dec-01, to lugnet.org.ca.rtltoronto)
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