Re: Question for Pat - "Skipjack" exhaust

[hylands@ibm.net (Jon Hylands)]

On Fri, 10 Dec 1999 10:07:55 -0500, "Alec Smyth" <asmyth@hsomail.com>
wrote:

> Do I understand right you are thinking of putting a jet ski engine in the
> sub? Is it a "momentary immersion" or snorkel sub? If not, I am really
> curious how you've attacked the exhaust problem!

If you're going fast enough (say 10 knots), and not going deep (say < 100
feet) the exhaust gases will come out on their own, especially if you
design the back end of the sub to create a vortex that helps suck the
exhaust out.

Don't forget, the exhaust *is* getting compressed on the way out by the
travel of the piston.

Later,
Jon


--------------------------------------------------------------
   Jon Hylands      Jon@huv.com      http://www.huv.com/jon

  Project: Micro Seeker (Micro Autonomous Underwater Vehicle)
           http://www.huv.com