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5-inch/51-caliber gun. 5"/51 caliber guns (spoken "five-inch-fifty-one-caliber") initially served as the secondary battery of United States Navy battleships built from 1907 through the 1920s, also serving on other vessels. United States naval gun terminology indicates the gun fired a projectile 5-inch (127 mm) in diameter, and the barrel was 51 ...
Mervyn Sharp Bennion (May 5, 1887 – December 7, 1941) was a United States Navy captain who served during World War I and was killed while he was in command of battleship USS West Virginia during the Japanese attack on Pearl Harbor in World War II. He posthumously received the Medal of Honor for "conspicuous devotion to duty, extraordinary ...
The 5" (127 mm)/54 caliber (Mk 45) lightweight gun is a U.S. naval artillery gun mount consisting of a 5 in (127 mm) L54 Mark 19 gun on the Mark 45 mount. It was designed and built by United Defense, a company later acquired by BAE Systems Land & Armaments, which continued manufacture.
The left and right surround speakers in the bottom line create the surround sound effect. 5.1 surround sound ("five-point one") is the common name for surround sound audio systems. 5.1 is the most commonly used layout in home theatres. [1] It uses five full bandwidth channels and one low-frequency effects channel (the "point one"). [2]
Naval history. 5.5-inch Mk I at National War Memorial Southern Command. This weapon was developed by Coventry Ordnance Works in 1913 and offered to the Greek Navy as the main armament for two new cruisers building at Cammell Laird. On the outbreak Of World War I the two ships were purchased by Britain as HMS Chester and HMS Birkenhead.
The United States Navy ( USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the world's most powerful navy and the largest by tonnage, at 4.5 million tons in 2021 [9] and in 2009 an estimated battle fleet tonnage that exceeded the next 13 navies combined. [10]
Gepard-class frigate. The Gepard-class frigates, Russian designation Project 11661, is a Russian class of frigates that were intended as successors to the earlier Koni-class frigates and Grisha, and Parchim-class corvettes. The first unit of the class, Yastreb ( Hawk ), was laid down at the Zelenodol'sk Zavod shipyard at Tatarstan in 1991.
L: 23,820 yards (21,780 m) at 20°. H: 40,600 yards (37,120 m) at 40° (World War II railway gun, with Super Charge) The BL 13.5 inch Mk V gun [note 2] was a British heavy naval gun, introduced in 1912 as the main armament for the new super-dreadnought battleships of the Orion class. The calibre was 13.5 inches (343 mm) and the barrels were 45 ...