World Library  
Flag as Inappropriate
Email this Article

Meroka CIWS

Article Id: WHEBN0009388297
Reproduction Date:

Title: Meroka CIWS  
Author: World Heritage Encyclopedia
Language: English
Subject: SPS Patiño (A14), Close-in weapon system, Salvo
Publisher: World Heritage Encyclopedia

Meroka CIWS

Meroka on Spanish aircraft carrier Principe de Asturias (R-11)

The Meroka CIWS is a Spanish Navy 12 barrelled 20 mm CIWS, using twelve Oerlikon 20 mm/120 guns mounted in 2 rows of 6 guns each. The system's primary purpose is defence against anti-ship missiles, and other precision guided weapons. However it can also be employed against aircraft, ships and other small craft, coastal targets, and floating mines. The weapon is mounted primarily on Spanish naval vessels, from Frigate size and larger.

The term MeRoKa (from German Mehrrohrkanone, meaning multi-barrelled gun) can refer to weapons such as the Nordenfelt gun but is more commonly used referring to this naval CIWS defence system. The "Meroka" was developed and produced by the Spanish firm FABA (Fábrica de Artillería Bazán).


Unlike a Gatling gun, the Meroka CIWS uses individual guns firing in salvos or simultaneously; the barrels are purposely skewed in order to expand the impact area. The guns are mounted in an enclosed automatic turret and are directed by radar or an optronic thermal controlling system.

The original version of the Meroka CIWS was directed by a separate off-mount radar system. This was later changed to an on-mount Lockheed Electronics PVS-2 Sharpshooter I-band radar. The radar is designed to acquire targets at 5,500 yards (5,000 meters), with the Meroka achieving first impact at 1,640 yards (1,500 meters) and destruction of the target at 550 yards (500 meters). Later versions included an optronic targeting system, as a backup in high electronic jamming conditions. More recent modifications included an Israeli designed IR tracker and other electronic devices of Spanish design supplied by Indra Sistemas.


  • Gun: 12 × Oerlikon 20 mm/120.
  • Weight: 4,500 kg (9,900 lb).
  • Elevation: -15° to +85°.
  • Traverse: 360°.
  • Muzzle velocity: 1,290 m/s (4,200 ft/s).
  • Rate of fire: 1,440 rounds per minute cyclic (for all twelve barrels).
  • Ammunition: Fixed (APDS-T) 720 rounds in a magazine, 60 rounds per barrel.
  • Weapons range: Effective range with APDS-T (0.102 kg with sabot), roughly 1,500–2,000 meters.
  • Search and track systems: Lockheed Electronics PVS-2 Sharpshooter I-band radar, Indra Thermal Imager.

See also


Naval Weapons of the World

External links

  • Spanish CIWS System Meroka (Spanish)
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.