Carsten,
That boat is a monster! But don't give up on it yet. You could
increase the depth rating dramatically just by adding some extra rings. I ran
numbers with 200m as the objective, and here is a possible solution. This is
just one possible configuration, you could accomplish the same result with
different combinations of number of frames/geometry of
frames.
You would need a total of 7 frames, with 4 of
them being very heavy (lets say 250kg each) and 3 light (lets say 85kg
each). Two of the heavy frames would either be right at the endsof the
cylinder, or if the endcaps are strong enough, they would act as frames by
themselves. The heavy and light frames would be alternated as shown
below:
( | [
| [ | )
This configuration yields a collapse depth of 234m. The weight addition
would be about 1.25 tons, which a 45/55 ton boat should be able to accomodate.
If you put 2 of the light frames between each heavy one,
your depth goes to 280m for an additional weight of about 1.5
tons.
Alec Smyth
-----Original Message-----
From:
owner-personal_submersibles@psubs.org
[mailto:owner-personal_submersibles@psubs.org]On Behalf Of
Carsten
Standfuß
Sent: Thursday, December 09, 1999 12:54 PM
To:
personal_submersibles@psubs.org
Subject: Re: Calculation
request
Carsten - from Germany
Hi Big Dave, some answers you
find on the mail to Alec.
The Boat overall is 20 m (66 feet with 1 feet =
0,3048 m ) long.
The pressure hull of 2,4m Diameter has a lenght of only 10 m
(33 feet).
In front and aft the pressure hull are the hard dive and regulator
tanks
(its a combination of both) with 3 feet long each.
One endcap,
symbol = (, or ) , of this tanks goes outside the other
goes inside to
the pressure hull like :
bow(tank)pressure
hull(tank)stern.
The rest is free floading anti-collison areas inside
bow and stern.
The reason for the big frame distance is the small
amount
of money the builders have had.
The displacement is 45/55 tons.
The engine is a 160 HP Diesel.
No other drive engine. The boat dive today
only static on one place. You
will find a picture of the sub on on "my" page
of Ray's great Homepage
at PSUBS Picture Gallery with the titel
"Spurdog".
I have sleep inside last weekend and it is very nice to
sleep
in such big submarine. No sound of the Live support system -
there
is no L.S.S..- much Space and air inside. And if you switch off
the
electric light - than it is night inside - the hole day - good time
to
drink some bottles of wiskey and discuss about the mad and poor
people
which have not a submarine..
And - hi Karl, the data I have
giver to you about this
sub are not longer secret - the dive deep is to
shallow for me..
regards, carsten - any other second hand autonomus sub
out there ?
It should be bigger than 30 feet and smaller than 90
feet..
regards, Carsten
D. Blake schrieb:
>
>
Carsten:
> Just to satisfy my curiousity, how long is the hull? What
are the stiffener
> ring dimensions? What shape and thickness are
the endcaps?
> Big Dave
> -----Original Message-----
> From:
Carsten Standfuß <MerlinSub@t-online.de>
> To:
Personal_Submersibles@psubs.org <Personal_Submersibles@psubs.org>
>
Date: Monday, November 29, 1999 4:50 PM
> Subject: Calculation
request
>
> >Carsten - from Germany
> >
> >Hi
friends, some of you use calculation
> >progammes for pressure
hulls.
> >I use tables which are older.
> >May some of you can
cross check
> >the dive deep ?
> >
> >I can buy an
older bigger Psub with the
> >following dimension: (1 inch =
24,5mm)
> >
> >Diameter outside = 2400 mm (98 inch)
>
>thickness hull = 15 mm (0,61 inch)
> >frame
distants = 2450 mm (100 inch)
> >Steel : normal working steel, mild
steel
> >
> >any cross check welcome, regards Carsten.
>
>