| 翻訳と辞書 |
| 5-54 Mark 45 ： ウィキペディア英語版 |
5"/54 caliber Mark 45 gun
The 5-Inch/54-caliber (Mk 45) lightweight gun is a modern U.S. naval artillery gun mount consisting of a 127 mm (5 inches) L54 Mark 19 gun on the Mark 45 mount.〔 Originally designed and built by United Defense, it is now manufactured by BAE Systems Land & Armaments after the former was acquired. The latest 5-inch/62-caliber version consists of a longer barrel L62 Mark 36 gun fitted on the same Mark 45 mount.〔 The gun is designed for use against surface warships, anti-aircraft and shore bombardment to support amphibious operations.〔
The gun mount features an automatic loader with a capacity of 20 rounds. These can be fired under full automatic control, taking a little over a minute to exhaust those rounds at maximum fire rate. For sustained use, the gun mount would be occupied by a six-man crew (gun captain, panel operator, and four ammunition loaders) below deck to keep the gun continuously supplied with ammunition.
==History==
Development started in the 1960s as a replacement for the 5"/54 caliber Mark 42 gun system with a new, lighter, and easier to maintain gun mounting. In USN use, the Mark 45 is used with either the Mk 86 Gun Fire Control System or the Mk 160 Gun Computing System. Since before World War II, 5 inch has been the standard gun caliber for U.S. Naval ships. Its rate of fire is lower than the British 4.5-inch (113 mm) gun, but it fires a heavier 5" shell which carries a larger burst charge that increases its per-shell effectiveness against aircraft.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「5"/54 caliber Mark 45 gun」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|