I am a Shipfitter It is a great trade to be apart of, we have a very proud brotherhood. This is the job description from where I work "Shop 11 fabricates, assembles and erects all structural parts of a ship, coordinates all fixed tank work performed on submarines and ships, and coordinates all sonar dome work. Shop 11 has a mold loft and heavy machinery such as plate planners, shears, punches, drill presses, bending rolls, bending slabs, furnaces, plate beveler, saws, presses up to 750 tons, angle roll (vertical and horizontal), and aluminum true-cut saw capacity 6 inches thick. Conveyors are used extensively to move plates from the layout shed to the various machines inside the shop. Shop 11 is responsible for hydro and air testing of tanks and compartments and is the cognizant shop for chipping and caulking, grinding, drilling, huck riveting and steaming Mogas piping and tanks safe for hot work." If you have any questions, let me know.