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The first generation, built around 1970, included a backstay and was used on many production boats. A patent application for the B&R rig was submitted in 1973 and was granted in 1975. [1] A second generation eliminated the backstay but used solid, deck-mounted struts to brace the lower mast section.
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]
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.
The 1916 German Type U 139 submarine (WWI, 3 boats), which mounted two 15-centimetre (5.9 in) SK L/45 deck guns and two 8.8-centimetre (3.5 in) SK L/30 deck guns. [10] The 1923 HMS X1, which mounted two 5.2-inch (130 mm) guns in 2 twin turrets. [11] The 1934 French submarine Surcouf, which mounted two 203-millimetre (8 in) naval guns. [12]
This was the standard deck gun mounted forward of the conning tower in Type VII boats, although a few substituted a high-angle 8.8 cm SK C/30 naval gun for anti-aircraft defense. [1] The SK C/35 was designed for the prototype VIIA boats of 1935 with a nominal ammunition allowance of 220 rounds.
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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There are two main types of torpedo tube: underwater tubes fitted to submarines and some surface ships, and deck-mounted units (also referred to as torpedo launchers) installed aboard surface vessels. Deck-mounted torpedo launchers are usually designed for a specific type of torpedo, while submarine torpedo tubes are general-purpose launchers ...