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5-inch/54-caliber Mark 42 gun — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/5-inch/54-caliber_Mark_42_gun
License (as archived): CC-BY-SA-4.0
Archived: 2026-11-06T17:33:36.764Z
SHA-256 of the archived text: 400f04ed9b3b1cbee54afbde17599d5f6185ec441433f2bee87efe193f17a232
Stable URL of this page: https://metraipolis.com/documento/dc_ab023b671b49

How to cite

5-inch/54-caliber Mark 42 gun — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/5-inch/54-caliber_Mark_42_gun (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_ab023b671b49 (Metraipolis archive dc_ab023b671b49, sha256 400f04ed9b3b1cbee54afbde17599d5f6185ec441433f2bee87efe193f17a232)

BibTeX

@misc{dcab023b671b49,
  title = {5-inch/54-caliber Mark 42 gun — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/5-inch/54-caliber_Mark_42_gun},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_ab023b671b49; sha256 400f04ed9b3b1cbee54afbde17599d5f6185ec441433f2bee87efe193f17a232},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/5-inch/54-caliber_Mark_42_gun. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

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 consists of the Mark 18 gun and Mark 42 gun mount. United States naval gun terminology indicates the gun fires a projectile 5 inches in diameter, and the barrel is 54 calibers long (barrel length is 5" × 54 = 270" or 6.9 meters.) 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. The self-loading gun mount weighs about 60.4 long tons (61.4 t) including two drums under the mount holding 40 rounds of semi-fixed case type ammunition. The gun fires 31.75 kg (70.0 lb) projectiles at a velocity of 2,650 ft/s (807.7 m/s). Maximum rate of fire is 40 rounds per minute. Magazine capacity is 599 rounds per mount. The Mark 42 mount was originally 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 (22.1 long tons (22.5 t)) 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.

Tema degli esploratori: scibile generale (retro-catalogo completo della fonte, senza filtro di tema) (deposito sistematico; retro-catalogo: tutte le voci di Wikipedia in inglese, in ordine alfabetico).
Fonte: Wikipedia in inglese, voce «5-inch/54-caliber Mark 42 gun» — https://en.wikipedia.org/wiki/5-inch/54-caliber_Mark_42_gun
Wikidata Q1466555: «cannone navale» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q1466555
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/5-inch/54-caliber_Mark_42_gun?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1377753250, consultata il 2026-11-06T17:26:01.446Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: c43f1b3fa63e75695473a8416392b32c6d1ad3bd99d8ea5ff6550a0e9739b0fe