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[5] [6] The second Navy design, the Mark 2, was intended as armament for the planned South Dakota-class battleships, and also selected for the modified design of the Lexington-class battlecruisers, replacing the 14-inch/50 caliber gun that was originally used for the design. [7] [8] The Mark 3 was a slightly modified version of the Mark 2. [9]
The Mk I was an Elswick gun of built up construction, which passed its trials on Elswick range near Silloth in the presence of Lord George Hamilton in October 1890. [2] Mk II was built by Woolwich Arsenal and in 1891 became the first Royal Navy gun using the Armstrong wire-wound construction. The breech mechanisms were developed from the ...
The first steamship, mine, radar, torpedo, aircraft carrier, and many other "firsts" all established a new era in the Navy, and each directly impacted the enlisted occupation structure. During World War II, the U.S. Navy also briefly maintained a rating of "Specialist", similar to the rank in the U.S. Army. The rating of "Specialist" was ...
The British military switched to Land Service or "L" number ("LXA1/A2/A3/etc.") designations in 1954, [1] but items such as the No. 8 Mk 1 0.22in Rifle, [2] [3] [4] No. 80 Mk 1 White Phosphorus Smoke Hand Grenade, [5] No. 1 Mk 3 6 Inch Beehive Demolition Charge, [6] [7] and No. 14 Mk 1 11 lb Hayrick Demolition Charge [8] continued to be ...
In 1942, the US Navy decided to commission a special helmet for sailors posted on decks and tasked with transmitting orders by sound-powered telephone.The new helmet was to protect "exposed deck personnel" and accommodate a telephone headset; furthermore, it had to be usable while wearing a gas mask and binoculars.
The 14-inch/45-caliber guns were installed as the primary armament aboard all of the United States Navy's New York-class, Nevada-class, and Pennsylvania-class battleships. The gun also saw service in the British Royal Navy, where it was designated BL 14-inch gun Mk II.
It was estimated that out of the 4,737 Mk I and Mk II guns produced there were still 3,494 on hand for the RN in 1939. [5] Many Mk V guns, which had a "monobloc" barrel made of a single casting, served on smaller escort ships such as destroyers and on armed merchant ships , on dual-purpose high–low angle mountings which also allowed it to be ...
Mk II mount. The new Mark II gun car developed during 1918 carried the same 14"/50 caliber Mk 4 gun but addressed the problem areas: it dispensed with the armored gun house, with gunners working in the open; the weight was more evenly spread over 20 axles instead of 12; the French system of rolling recoil was adopted, in which the gun was ...