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All through-hull fittings are equipped with bronze seacocks. There are two manual bilge pumps, as well as an automatic electric bilge pump. There are eight cockpit and deck scuppers. There is a pressurized water system and manual fresh and salt water pumps in the galley. The galley sink has a macerator pump which also serves the ice box drain.
The primary purpose of a ship's funnel(s) is to lift the exhaust gases clear of the deck, in order not to foul the ship's structure or decks, and to avoid impairing the ability of the crew to carry out their duties. In steam ships the funnels also served to help induce a convection draught through the boilers.
The exhaust gases were, instead, ducted aft in the space between the roof of the hangar deck and the flight deck and were enclosed by a casing through which cooler air was driven by electric fans. They normally exhausted underneath the aft end of the flight deck, but the exhaust could be vented through openings on the rear side of the hull by ...
The exhaust through the transom was replaced by a conventional stack during Dependable ' s Mid-life Maintenance Availability in 1995. Afterwards the ship had a larger superstructure and a smaller helicopter pad. Her hull is welded steel and her superstructure aluminum, as is usual with contemporary warships.
USS Hull (DD-350) was a Farragut-class destroyer in the United States Navy during World War II. She was named for Isaac Hull . Hull received 10 battle stars for World War II service, having sailed to Europe, and serving in the Pacific before and during the war in combat.
Marine propulsion is the mechanism or system used to generate thrust to move a watercraft through water. While paddles and sails are still used on some smaller boats , most modern ships are propelled by mechanical systems consisting of an electric motor or internal combustion engine driving a propeller , or less frequently, in pump-jets , an ...
The Bay-class tugboat is a class of 140-foot (43 m) icebreaking tugboats of the United States Coast Guard, with hull numbers WTGB-101 through to WTGB-109.. They can proceed through fresh water ice up to 20 inches (51 cm) thick, and break ice up to 3 feet (0.91 m) thick, through ramming.
Another method vents the exhaust into the water, although this increases the ship's acoustic signature. For the hull, cool water can be actively distributed across the hull of the ship. Another less crucial but still relevant part of a stealth ship is visual camouflage. This area is probably the oldest form of stealth, with records going back ...
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