Английская Википедия:5"/54 caliber Mark 42 gun
The Mark 42 5"/54 caliber gun (127mm) is a naval gun (naval artillery) mount used by the United States Navy and other countries. It consisted of the Mark 18 gun and Mark 42 gun mount. United States naval gun terminology indicates the gun fires a projectile Шаблон:Convert in diameter, and the barrel is 54 calibers long (barrel length is 5" × 54 = 270" or 6.9 meters.)[1] In the 1950s a gun with more range and a faster rate of fire than the 5"/38 caliber gun used in World War II was needed, therefore, the gun was created concurrently with the 3"/70 Mark 26 gun for different usages. The 5"/54 Mk 42 is an automatic, dual-purpose (air / surface target) gun mount. It is usually controlled remotely from the Mk 68 Gun Fire Control System, or locally from the mount at the One Man Control (OMC) station.[2]
The self-loading gun mount weighs about Шаблон:Convert including two drums under the mount holding 40 rounds of semi-fixed case type ammunition. The gun fires Шаблон:Convert projectiles at a velocity of Шаблон:Convert.[3] Maximum rate of fire is 40 rounds per minute.[4] Magazine capacity is 599 rounds per mount.[3] The Mark 42 mount originally was equipped for two on-mount gunners, one surface and one antiaircraft, but the antiaircraft gunner position was scrapped later on when the increasing speed of naval aircraft made manual aiming of anti aircraft weapons impractical. The Mark 45 lightweight (Шаблон:Convert)[5] gun mount began replacing the Mk 42 mount in 1971 for easier maintenance and improved reliability in new naval construction for the United States Navy.[6]
Users
- First used on Шаблон:USS
- Шаблон:Sclass (later removed during upgrade)
- Шаблон:Sclass and Шаблон:USS
- Шаблон:Sclass
- Шаблон:Sclass
- Шаблон:Sclass
- Шаблон:Sclass
- Шаблон:Sclass
- Шаблон:Sclass (modified Charles F. Adams class)
- Damiyat-class frigate (ex-USN Knox-class frigates)
- Шаблон:Sclass (modified Charles F. Adams class)
- Ipiros-class frigate (ex-USN Knox-class frigates)
- Kimon-class destroyer (ex-USN Charles F. Adams-class destroyer)
- Ignacio Allende-class frigate (ex-USN Knox-class frigates)
- Шаблон:Sclass (modified Knox class)
- Chih Yang-class frigate (modified ex-USN Knox class)
- Шаблон:Sclass (ex-USN Knox-class frigates)
- Muavenet-class frigate (ex-USN Knox-class frigates)
See also
- 5"/38 caliber gun US predecessor
- 5"/54 caliber Mark 16 gun US predecessor
- 5"/54 caliber Mark 45 gun US successor
- QF 4.5 inch Mk I - V naval gun British equivalent
Notes
Bibliography
External links
- GlobalSecurity.org Mk 42
- NavWeaps.com Mk 42
- 5"/54 MK 42 GUN - Seaman - Military manual for the Seaman rate Шаблон:Webarchive via tpub.com
- Английская Википедия
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- Naval guns of the United States
- Naval weapons of the Cold War
- Naval anti-aircraft guns
- 127 mm artillery
- Military equipment introduced in the 1950s
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