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Most submarine deck guns were open, with or without a shield; however, a few larger submarines placed these guns in a turret. [citation needed] The main deck gun was a dual-purpose weapon used to sink merchant shipping or shell shore targets, or defend the submarine on the surface from enemy aircraft and warships.
A hull is the watertight body of a ship, boat, submarine, or flying boat. The hull may open at the top (such as a dinghy), or it may be fully or partially covered with a deck. Atop the deck may be a deckhouse and other superstructures, such as a funnel, derrick, or mast. The line where the hull meets the water surface is called the waterline.
Deck gun A master stream device mounted to top deck of pumper. Delivery Term for any hose that conveys water to a fire e.g., each outlet from a fire appliance supplies a delivery with water. Deluge gun A master stream device that can be positioned on the ground based on the need of the incident commander. Deluge system
A fishing vessel is a boat or ship used to catch fish and other valuable nektonic aquatic animals (e.g. shrimps/prawns, krills, coleoids, etc.) in the sea, lake or river. Humans have used different kinds of surface vessels in commercial, artisanal and recreational fishing.
When this happens wetted surface area drops radically and the boats accelerate up to 1.2 to 1.5 times the speed of the prevailing wind. These boats are very light (all up weight is less than 40 kg) and very fast, They hydrofoil in as little as 8 knots (15 km/h) of breeze ("sit on the deck breeze" for most dinghy classes).
A deck is a permanent covering over a compartment or a hull [1] of a ship. On a boat or ship, the primary or upper deck is the horizontal structure that forms the "roof" of the hull, strengthening it and serving as the primary working surface. Vessels often have more than one level both within the hull and in the superstructure above the ...
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The 1960s Soviet Project 1231 was a concept for a missile boat that would travel with hydrofoils on the surface and then dive to avoid observation, which was never built. [ 16 ] The 2010 French SMX-25 was a submarine design concept by defence company, DCNS , with surface ship characteristics, which would allow high surface speed for more rapid ...