Re: [PSUBS-MAILIST] My PSUB Explorer

[Coalbunny <coalbunny@vcn.com>]

Something like that I guess.  Like I said, it has been years.
Carl


JP wrote:
> 
> Sorry for the very late response.
> 
> The set up you are describing is commonly called "Kort Nozzles". They are used
> on tugs and various ships. They are effective mostly within a certain speed
> range: I believe 6-8 knots for ships. They increase the efficiency of the
> prop, reducing fuel consumption I believe. They aren't effective at high
> speeds, or very low speeds. The cross sectional shape of the shroud is that
> of an aerofoil.
> 
> JP
> 
> On Tuesday 24 September 2002 12:21 pm, Coalbunny wrote:
> > I only know it by that.  It is/was an experimental drive for a submarine
> > intended for speed, I believe.  Take a submarine and put torpedo tubes
> > running horizontal along the bottom.  Except they aren't torp's, they go
> > to the prop, which is inside the tubes.  Wider at the front and narrower
> > at the back, I believe.  Anyhow, it uses the same principle used by my
> > industry- mining.  Look for information on suction dredging.  Jeene
> > Engineering makes those kinds of dredges.  You have a little bit of high
> > pressure water coming in at an angle, and it creates a suction brining
> > in a lot more water through the bigger tube.  I'll have to sketch out
> > the thing I saw and get it scanned.  Was many years back.  Don't even
> > remember who I saw had it or where.  But that was the name, I believe.
> > Reportedly could increase speed with no noticeable increase in power
> > consumption.
> > Carl
> >
> > Michael B Holt wrote:
> > > On Mon, 23 Sep 2002 21:56:43 -0600 Coalbunny <coalbunny@vcn.com> writes:
> > > >Why bother with props?  What's wrong with using "cavitated water
> > > >jets"?
> > >
> > > Or, along the same line (sort of), why not try shrouding the props with
> > > thin plexiglass?
> > >
> > > What's a cavitated water jet?   Do I know it by another name?
> > >
> > > Mike H.
> > >
> > > ________________________________________________________________
> > > GET INTERNET ACCESS FROM JUNO!
> > > Juno offers FREE or PREMIUM Internet access for less!
> > > Join Juno today!  For your FREE software, visit:
> > > http://dl.www.juno.com/get/web/.

-- 
"I learned this, at least, by my experiment: That if one advances
confidently in the direction of one's dreams, and endeavors to live the
life one has imagined, one will meet with a success unexpected in common
hours."  Henry David Thoreau