Re: Unmanned sub crosses ocean
From: Ron Wong (ronwong_at_purgethis.inreach.com)
Date: 11/19/04
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Date: Fri, 19 Nov 2004 12:27:15 -0800
In article <3h1sp0dqd2jvicvtjm34nf0a5ltvm1r7si@4ax.com>, Hans-Georg Michna
<hans-georgNoEmailPlease@michna.com> wrote:
> On Wed, 17 Nov 2004 16:58:50 -0500, Alan Browne
> <alan.browne@FreeLunchVideotron.ca> wrote:
>
> >I find its method of propulsion many times more fascinating than its
use of GPS.
>
> Alan,
>
> perhaps fascinating, but rather slow. Doesn't save much energy
> either.
For those interested in a more complete description of the device and it's
capabilities go to:
http://www.whoi.edu/home/index_nr_spray.html
Spray is about 6 meters long, 0.3 meeters in diameter, and has a mass of
around 50 kg.
The designers claim that it has a range of 6 000 km (not bad for a single
charge of it's batteries) while moving at an average speed of 12 km/day.
It's little slow compared to the speed of a typical submarine but getting
3500 miles on a single charge seems like an efficient way of getting
around - if time isn't an issue.
ron
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