Re: [PSUBS-MAILIST] OSS Pressure hull basic layout.

[Ian Roxborough <irox@ix.netcom.com>]

On Fri, 24 Jan 2003 09:02:21 +0800
"Warrend Greenway" <dub@linuxmail.org> wrote:

> OK. You have some really interesting ideas here. I personally 
> would like to see two hatches, possibly of raised domes, or 
> the cylinders.

I'm interested in why?  I can't seem see any advantage to two
hatches on a sub this small.

I only put one hatch in because putting two would make the moment of
the boat unstable on the surface.  I.e. two open hatches on the surface
puts a lot of weight high up, now imagine if two people stood up at the
same time.  There is also the cost factor and effort of making two hatches.

> I thought your seating idea was great! I also
> like the "foot dome", that is an interesting concept, because
> it minimizes the volume. Also, putting the instruments and 
> controls on rails so that they roll out of the way sounds like
> a good idea, then they wouldn't be in the way when you are 
> climbing in. Did you get a chance to look at the pictures of my
> canted idea? 

It's hard to tell why you've done that for the picture.  Infact
it's hard to get any useful information out of a 3d pictures.

Other than that, I think it would be endanger of being
swamped if the dome was open and small wave hit the boat.

Ian.

> > 
> > hi,
> > 
> > I did a little fiddling around with the pressure hull layout.
> > Using a foot well, it seem that we could design a hull with
> > around a 2 cubic meter displacement (~2000kg or ~4400lbs).
> > 
> > I'm interested in what people, in particular about the
> > dimentions with regard to confort.
> > 
> > Ian.
> > 
> > 
> > 
> > http://www.prismnet.com/~moki/subfiles.html
> > http://www.prismnet.com/~moki/20030123.175639/hull-v1.jpg
> > 
> > Approximate displacement: 2 cubic meters (~2000kg or 4400lbs)
> > 
> > Hatch top is 2.5 feet from the water line, per ABS spec.
> > 
> > One dome viewport, one cylinder style veiwport.
> > 
> > Only rear seating position has a hatch, the dome doesn't not open.
> > 
> > Seats would probably be made of cloth and hung "hammock style"
> > so they be easily moved out of the way making it easy to access
> > the front seating position.
> > 
> > Front seating position is for the viewer/guest, the rear position
> > is for the pilot, the idea is the pilot sitting slightly higher
> > to see more.
> > 
> > Controls would been to fold away so they do not inhibit passage
> > to the front position.
> >  
> 
> -- 
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