The Navy wants a security locker built from 1/2" Hadfield plate, which one person mentioned is commonly used for safes and vaults. The locker is about the size of a refrigerator. Engineers and shipyard weld crew were discussing how they qualified an alternate steel, as they weren't sure what to...

Tinning paste, 15-watt electric soldering iron and very thin diameter solder. Only use as much heat as it takes to get the solder to wet. Tinning paste flashes wet very fast. The melt point of the zinc alloy is so low that you want the smallest diameter solder you can find. You need the smaller mass...

304 stainless can have galvanic reactions to minerals in the water, and it seemed to be enhanced in water with especially low amounts of entrained oxygen. It happened to 304-grade components on submarines based in fresh water river ports with low oxygen content. Not only discoloration, but galvanic ...

Depending on the end purpose of the structure, heating to do fit-up is an absolute no-no. It is an absolute NEVER on structural elements of a Naval warfare vessel due to the grade of steel used. Putting heat into carbon steel could result in tempering it, meaning it gets softer and more pliable. Whe...

It looks like a fubar ASCII text on a CAD generated weld symbol. The little 'O' is supposed to be the degree symbol to go with the number 45 .... to say 45°(it just happens to hit the bevel symbol to appear like it has some high-falutin' meaning). It looks like the designer has some sort of weird, o...

The contract to build her was awarded to the Electric Boat Division of General Dynamics Corporation in Groton, Connecticut on 30 June 1988 and her keel was laid down on 22 February 1992. She was launched on 4 December 1993 sponsored by Laura O'Keefe, wife of former Secretary of the Navy Sean O'Keefe...