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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 control horn is a section of control surface which projects ahead of the pivot point. It generates a force which tends to increase the surface's deflection thus reducing the control pressure experienced by the pilot. Control horns may also incorporate a counterweight which helps to balance the control and prevent it from fluttering in the ...
The 10.5 cm SK C/32 was the standard low-angle deck gun mounted forward of the conning tower in type I, type IX and type X U-boats. The Ubts LC/32 mounting used in type I and early type IX U-boats weighed about 5 tonnes. Later type IX and type XB U-boats used the lighter Ubts LC/36 mounting with a maximum elevation of +30° . [1]
The visible water surface in a toilet is the top of the trap's water seal. Each fixture drain, with exceptions, must be vented so that negative air pressure in the drain cannot siphon the trap dry, to prevent positive air pressure in the sewer from forcing gases past the water seal, and to prevent explosive sewer gas buildup.
Faucet is the most common term in the US, similar in use to "tap" in British English, e.g. "water faucet" (although the term "tap" is also used in the US).; Spigot is used by professionals in the trade (such as plumbers), and typically refers to an outdoor fixture.
HMS Argus showing the full-length flight deck from bow to stern ROKS Dokdo's full length flight deck The first aircraft carrier that began to show the configuration of the modern vessel was the converted liner HMS Argus, which had a large flat wooden deck added over the entire length of the hull, giving a combined landing and take-off deck unobstructed by superstructure turbulence.
The grid deck, gridiron deck, or grid, is a permeable working surface present at the top of many fly lofts that is used to support and provide access to many of a rigging system's components. Though originally constructed of wood, down-facing three-inch steel channels with three-inch gaps became the prevalent grid decking in the 20th century.
Round Down: The stern of the Carrier where the Flight Deck Started. Smoke in the air: Used by Naval Aviators/Aircrew for locked-on incoming missiles at visual range. Sea skimming: Low level flight procedure for missiles/fighter aircraft to avoid radar detection. Stern: Rear of the ship. [11] Taps: Lights out, time to sleep. [11] Turn to: Start ...