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5"/54 caliber Mark 42 gun

The Mark 42 5"/54 caliber gun (127mm) is a naval artillery gun mount used by the United States Navy and other countries. It consisted of the Mark 18 gun and Mark 42 gun mount. 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 antiaircraft weapons impractical.

Usage

• First used on USS Northampton (CLC-1)
• Mitscher class destroyer
• Forrest Sherman class destroyer
• Farragut class destroyer (1958)
• Charles F. Adams class destroyer / Lütjens class destroyer (Germany) / Perth class destroyer (Australia)
• Belknap class cruiser and USS Truxtun (CGN-35)
• Knox class frigate / Baleares class frigate (Spanish modified Knox claas)
• Tachikaze class destroyer (Japan)
• Hatakaze class destroyer (Japan)
• Haruna class destroyer (Japan)
• Takatsuki class destroyer (Japan)
• Shirane class destroyer (Japan)

See also

• 5"/38 caliber gun
• 5"/54 caliber Mark 45 gun

External links

• GlobalSecurity.org Mk 42
• NavWeaps.com Mk 42
• 5"/54 MK 42 GUN - Seaman - Military manual for the Seaman rate via tpub.com