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Raised Draft Marks

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Raised Draft Marks

Postby Scott T » Wed Dec 19, 2012 2:46 pm

By-golly they do put raised draft marks on some old submarines.
Maybe not the newest ones though. :wink:

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Re: Raised Draft Marks

Postby Giovanni » Wed Dec 19, 2012 4:56 pm

Gato ?
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Giovanni

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Re: Raised Draft Marks

Postby JWLaRue » Wed Dec 19, 2012 7:53 pm

...close. It's a Balao-class fleetboat. :)

-Jeff
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Re: Raised Draft Marks

Postby wlambing » Thu Dec 20, 2012 5:44 pm

Guys,

They look raised, but are actually painted in a weld bead outline. Later classes have have weld lines, demarking the height, with the numbers painted between them. We didn't start putting raised draft marks, hull numbers, and names on our boats 'til we started using Special Hull Treatments. The latest classes have numbers carved out of blocks that stand proud of the hull by @ 3 inches and are fair with the outer surface of the SHT!

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Re: Raised Draft Marks

Postby Tom Dougherty » Thu Dec 20, 2012 6:01 pm

The latest classes have numbers carved out of blocks that stand proud of the hull by @ 3 inches and are fair with the outer surface of the SHT!
From which we deduce the Special Hull Treatment is 3 inches thick....
Tom Dougherty
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