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Re: [PSUBS-MAILIST] American Sportsman Submersible
Speaking of hull inspection, has anyone had their finished hulls, conn,
windows, etc. inspected with ultrasonics? I've heard of the 10% corrosion
wall thickness being the limit for "fitness for service" in some codes.
Maybe one of these years I could make it out to the convention and
contribute a demonstration in ultrasonic inspection, flaw sizing etc.
Adam
----- Original Message -----
From: Carsten Standfuß <MerlinSub@t-online.de>
To: <personal_submersibles@psubs.org>
Sent: Friday, April 26, 2002 11:33 AM
Subject: Re: [PSUBS-MAILIST] American Sportsman Submersible
> Hi Steven -
>
> Vance is right - the twin Tower boat is even in my sources
> the 300 version.. but Busby told that Brazosport owneds a 600
> with a single tower..
>
> May you can meassure (sounding) the hull tickness with a
> magnetic indicator - most yards and bigger steel companys
> have such a unit.
>
> Take the measuring all 1 foot in all directions and label the
> numbers with a pen direct on the spots on the hull.
> Special attention to areas which are difficult to maintance
> - like the bilge ara, hull to sidetank weld connections areas..
>
> Vance can may better explain on which spots you have to take
> the meassurings on this boat.
>
> If the figures on some spots is differnt (smaller) than the
> given one - be carefull - maybe it is nessesary to recalculate
> the hull dive deep. If the hull tickness is still okay
> a modern recalculation would also very helpfull..
> Maybe you get more or less deep than the given figures -
> note your calculation is over 40 years old and from
> a unkown type ..
>
> According to good shipbuilding practice - shell hull
> should be replace if they lost more than 10 % of there
> thickness..
>
> Is the 8 inch diameter conical and 1 inch tickness
> window of a flat or a dome type ? Is 8 inch the
> inside clear view ?
>
> Like this ? :
>
> ---------------I flat window I---------
> ----------------I 1 inch strong I----------
> -----------------I 8inch here I----------
>
> If this is true (flat type) it is according
> to the GL Rules good for a dive deep just in the
> 40 m (130 feet) range ..
>
> With a little raised 60° dome type good for about
> 450 m (1470 feet).. but need drawing for final cal..
>
> Dive deep for 300 is given with :
> operational workdeep : 90 m (295 feet)
> collapse deep : 305 m (1000 feet)
> hull tickness : 9,5 mm (37,4% of an inch) A36 steel
>
> for the 600 is given with :
> Op.workdeep : 185 m (607 feet)
> collapse deep : 460 m (1509 feet)
> hull tickness : 12,7 mm (1/2 inch) A36 steel
>
> Some pictures of your sub would be very nice..
> .. were do you live ?
>
> CAUTION:
>
> for european readers :
> --------------------------------------------------------
> - all given calculations without any garanty -
> --------------------------------------------------------
>
> for american readers :-)
> --------------------------------------------------------
> - do not dry your tomcat in a microwave ofen -
> --------------------------------------------------------
>
> and for all Psubers
> --------------------------------------------------------
> - careful handling with subs you found in a road ditch -
> --------------------------------------------------------
>
> Carsten
>
> Steven schrieb:
> >
> > Carsten,
> > Thanks for the info. The boat I own is the one from Brazosport College
in
> > Lake Jackson, Texas. Right now I am evaluating whether to try and
rebuild
> > this, or start fresh with another one more conducive to attaching a
> > manipulator to.
> > Regards, Steve Salley
> > At 11:14 PM 4/24/02 +0200, you wrote:
> > >Hi - there is a general description with the technical maindatas
> > >of the Sportsman 300 & 600 at Busby's Book at page 212 and 213.
> > >
> > >One owner of the Sportsman 600 in the 70ies was the :
> > >
> > >Brazosport College
> > >Lake Jackson
> > >Texas (or Ohio?)
> > >
> > >A Sportsmans 300 was owned by :
> > >
> > >The Tiburon Marine Laboratory
> > >Tiburon, California
> > >
> > >The original builder was:
> > >American Submarine Co.,
> > >Lorain, Ohio
> > >
> > >Maybe up to 20-30 units were build..
> > >
> > >I have a other description in "Tauchboote" N.Gierschner
> > >
> > >The units were also called Amersub 300 and 600
> > >First launch of a 300 was 1961 for about 9000 US asking price.
> > >An other owner of a 300 was the Bureau of Commercial Fisheries.
> > >Rang for the 300 was 12-16 seamiles.
> > >
> > >There is a description in Terry, R.D.:
> > >The deep submersible
> > >Hollywood, Cal., 1966
> > >
> > >First Amersub 600 was launch in 1963, asking 12000 USD.
> > >
> > >But the descriptiion I have is that the single tower design
> > >is the 600 and the twintower ist the 300 !
> > >
> > >Intressting feature : The 600 has an Mercury trim system !
> > >
> > >After 39 years the windows should maybe replace before you go deeper..
> > >
> > >regards Carsten
> > >
> > >
> > >Steven schrieb:
> > >>
> > >> Hello all,
> > >> I am new to this group, but it looks like there is a lot of expertise
here.
> > >> I currently own an American Sportsman Submersible that I bought at
an
> > >> auction back in 1982. I started rebuilding it, and almost
immediately ran
> > >> out of money. The dreams of youth! It has been on it's trailer ,
stripped
> > >> and partially recoated, since then. It is I believe, according to
the
> > >> Original Company brochure that I have, an American Sportsman 600,
which was
> > >> supposed to be capable of 600 foot depths. It is a twin conning
tower
> > >> design which was originally owned by the US Gov., being used in fish
> > >> surveys. Anybody have any info on these? Also, and more
importantly, has
> > >> anybody done a rebuild on one? Both conning towers have wrap around
view
> > >> ports of about 1 inch thick Plexiglass, and there is an 8 inch
diameter, 1
> > >> inch thick view port that is somewhat conical in shape that is on the
> > >> bottom. I am finally getting to the point where I might be able to
start
> > >> refitting again, and any advice would be most helpful.
> > >> Regards, Steve Salley