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AU design question
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Author:  ALVAMA [ September 13th, 2011, 3:01 pm ]
Post subject:  AU design question

If I have a tanker built about 1937, single shaft and a depth of 10.5 meter. I want to rebuild it as mothership for landingcrafts (as done by British too) And I want to cut the depth to 6 to 7 meters. Can I cut in the steel of the hull? like cut a part off. I know you can make the ship lighter and it will raise, but when I add tanks and LCTs it won't help. Also did Americans done this with shipship into lakers? Is it possible?

Author:  Thiel [ September 13th, 2011, 4:18 pm ]
Post subject:  Re: AU design question

You can, though carving off the top isn't the way to go.
The easiest way would be to reduce the mass of cargo carried.

Author:  ALVAMA [ September 13th, 2011, 4:32 pm ]
Post subject:  Re: AU design question

Thiel wrote:
You can, though carving off the top isn't the way to go.
The easiest way would be to reduce the mass of cargo carried.
Yea Indeed. A problem I got in mind. If she not carried any oil (whish will be quite some) she will carry tanks, soldiers, weapons and LCTs you'll get around the same king of heavy weight

Author:  Thiel [ September 13th, 2011, 5:12 pm ]
Post subject:  Re: AU design question

Not necessarily. The ship I work on can carry 35000 mt oil. That works out to some 540 M1s. However, even if we discount the gun and all the gear necessary to get them on board park and them hubcab to hubcab you can only fit ~130. That works out to about 8450 mt.
You could double that by installing an extra deck, but that still only comes to 20000 mt (I'm including ~3000mt for the deck)

In short you're going to run out of space much sooner than buoyancy. This will have the added benefit of reducing the ship's draught considerably.
Of course this only works out like this for my ship, but the general idea result will be the same no matter what ship you use.

Author:  ALVAMA [ September 13th, 2011, 5:14 pm ]
Post subject:  Re: AU design question

Ah Okay. Well Thank-you for answering!! Now I can make the drawings!

Author:  APDAF [ September 13th, 2011, 5:20 pm ]
Post subject:  Re: AU design question

You could use the bits you cut off to widen it..

Author:  heuhen [ September 13th, 2011, 5:22 pm ]
Post subject:  Re: AU design question

APDAF wrote:
You could use the bits you cut off to widen it..
It will only destroy the hull, designed properties. and the structural integrity.

And it will also be cheaper to build a new ship.

Author:  acelanceloet [ September 13th, 2011, 5:33 pm ]
Post subject:  Re: AU design question

APDAF wrote:
You could use the bits you cut off to widen it..
let's say... you could scrap the ship, melt the metal, make new plates of it, build an new ship of it....that would be easier then what you describe.

Author:  Thiel [ September 13th, 2011, 5:41 pm ]
Post subject:  Re: AU design question

Unless you resort to bulges

Author:  acelanceloet [ September 13th, 2011, 6:04 pm ]
Post subject:  Re: AU design question

Thiel wrote:
Unless you resort to bulges
true. but still.... removing plating from 'somewhere' and then reshaping it to fit elsewhere...... not impossible, but not the thing I would do.

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