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Forward AK-230 mount on Finnish minelayer Keihässalmi.

AK-230 is a Soviet fully automatic naval twin 30 mm gun. Its primary function is anti-aircraft. It is mounted in an enclosed automatic turret and directed by radar. AK-230 is widely used,[1] mounted on big warships as well as small crafts. About 1450 guns were produced in the USSR, and about 300 were produced in China as the Type 69. It was succeeded by the more powerful AK-630 from the mid-to-late 1970s.

Development and service[edit]

The rear of an AK-230 on the deck of the ORP Wodnik.

Development of the weapon began during the 1950s, with the first trial weapon fitted to the Osa class of fast attack missile boats and Shershen class torpedo boats. The weapon was officially accepted into service in 1969. Its service life was relatively short, though, as already by late 70es it's been steadily supplanted by the AK-630 system, which uses the same mountings and can be controlled by the same fire control systems. While its 30×210 mm round was much more powerful than the AK-630's 30×165 mm one, having the muzzle velocity of 1050 m/s (the same as with 30×175 mm GAU-8's cartridge), the moderately powered AK-630's round allowed for much higher rates of fire, especially in a Gatling-type weapon, which was considered more advantageous for the anti-aircraft system.

Description[edit]

The weapon consists of two stabilized NN-30 30 mm water-cooled four chamber revolver cannons, which are mounted inside a riveted steel turret. The gun mechanism is gas operated.[1] The guns each weigh 155 kg and have barrels 1930 mm long, and a total length of 2670 mm. The barrels are rifled with 12 grooves. The guns each have a rate of fire of 1,000 round per minute;[citation needed] they are fed by independent 500-round belts of ammunition.

The rounds are electrically fired; propellent gasses are used to eject the spent shells and belt links into a space between the magazine and the hull. Ballistic maximum range for the weapon is about 6.7 km, but realistic ranges for engaging air targets are quoted as between 2.5 and 4 km.

The weapon is remote-directed, typically by a fire-control system linked to either a Drum Tilt or Muff Cobb radar systems.

Ammunition[edit]

The AK-230 fires specially developed 30x210B 30 mm ammunition that is electrically primed. Two rounds were developed: a high-explosive round with an impact fuze, and an armour-piercing round. The Chinese Type 69 fires only a locally produced version of the high-explosive round. Ammunition is also produced in Romania and Serbia.

Tasma i luska do AK-230.jpg
Type HE AP-T
Designation OF-83D BR-83
Weight
Round 1.13 kg 1.12 kg
Projectile 0.27 kg 0.35 kg
Explosive content 30 g of
A-IX-2
-
Muzzle velocity 1,050 m/s

Specifications[edit]

  • Calibre: 30 mm
  • Traverse: +180 to -180 degrees at 35 degree/s[citation needed]
  • Elevation: -12 to +87 degrees at 50 degree/s[citation needed]
  • Mounting weight: 1857 kg to 1905 kg
  • Rate of fire: 2,000 rpm (system)[citation needed]
  • Gun Weight: 343.9 lbs. (156 kg)
  • Gun Length oa: 84.25 in (2.140 m)
  • Bore Length: 74.69 in (1.897 m)
  • Rifling Length: 71.06 in (1.805 m)
  • Grooves: 12
  • Chamber Volume: 13.49 in3 (0.221 dm3)
  • Rate Of Fire: over 1,000 rounds per minute cyclic

Variants[edit]

  • AK-230 A type - For ships with 220 V DC power systems.
  • AK-230 B type - For ships with 380 V AC power systems.
  • AK-230M - Less magnetized version for minesweepers (380 V AC).
  • Type 69 - Chinese version, total weight 3,600 kg. Shells are ejected outside of the turret. 50 degree/second traverse.

References[edit]

  1. ^ a b Norman Friedman (2006). The Naval Institute Guide to World Naval Weapon Systems. Naval Institute Press. p. 468. ISBN 978-1-55750-262-9. 

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/AK-230 — Please support Wikipedia.
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128 news items

NK News

NK News
Mon, 07 Dec 2015 02:23:49 -0800

... was presumably the defending force, carrying four anti-ship missiles derived from the 1960s P-15 Termit each, as well as two AK-230 twin-barreled 30mm close-in weapon systems (CIWS) guided by a Drum Tilt radar. Although antique by modern standards, ...

Vijesti

Vijesti
Tue, 26 Jan 2016 11:17:25 -0800

Naoružan je sa dva dvocjevna topa AK-230 kalibra 30 mm, jednim četvorocjevnim topom M-75 kalibra 20 mm i četvorocjevnim lanserom MTU-4 za PVO rakete malog dometa “strela- 2M”. Brzinom od 12,5 čvorova pokreću ga dva dizel motora ukupne snage ...

bellingcat

bellingcat
Sat, 25 Apr 2015 11:53:24 -0700

Recent examples of such conversions have included the installment of Oerlikon GDF naval guns on trucks by Libya Dawn and the installment of AK-230 naval guns on trucks by the Libyan National Army. Libya Dawn, currently in control of Libya's captital ...

farsnews

farsnews
Tue, 26 Jan 2016 03:47:17 -0800

كما يحمل تندر في مقدمته مدفعا ذو سبطانتين من عيار 30 مليمتر AK-230 ذو كثافة نارية (قادر على اطلاق 1000 الى 2000 اطلاقة بالدقيقه) ويعتمد الرادار في ضرب اهدافه ويصل مداه ضد الاهداف الجوية الى مايتراوح بين 2500 و4000 متر فيما يصل مداه في الاهداف المنحنية الى ما ...

fardanews.com

fardanews.com
Tue, 26 Jan 2016 00:21:06 -0800

در قسمت سینه این شناور، یک توپ دو لول ۳۰ میلیمتری AK-230 با نواخت تیر بالا (شلیک ۱۰۰۰ تا ۲۰۰۰ گلوله بر دقیقه) و با هدفگیری راداری قرار گرفته که بُرد آن برای درگیری با اهداف هوایی بین ۲۵۰۰ تا ۴۰۰۰ متر و با شلیک منحنی ۶ تا ۷ کیلومتر مناسب است. این یعنی ...

اخبار سعودى نيوز (بيان صحفي)

اخبار سعودى نيوز (بيان صحفي)
Tue, 26 Jan 2016 13:22:30 -0800

ويوجد على مقدمة الزورق مدفعان عيار 30 مليمتر AK-230 ذو كثافة نارية 1000 إلى 2000 طلقة بالدقيقة. نشرت وكالة "فارس" للأنباء الإيرانية، اليوم الثلاثاء، صورا للزورق الذي توجه نحو القوة الأمريكية واحتجز أفرادها منذ أسابيع قليلة، وقالت إنه يسمى "تندر"، وهو من نوع الزوراق ...

38 North

38 North
Sun, 08 Feb 2015 07:38:18 -0800

The vessel is armed with a Furuno search radar and armed with four canister launchers (two on each side) for KH-35 missiles, two 30 mm AK-230 CIWS (one forward, one aft), four 14.5 mm Gatling guns (two forward, two aft) and what appear to be two ...

المتحدة نيوز

المتحدة نيوز
Tue, 26 Jan 2016 13:22:30 -0800

ويوجد على مقدمة الزورق مدفعان عيار 30 مليمتر AK-230 ذو كثافة نارية 1000 إلى 2000 طلقة بالدقيقة. نشرت وكالة "فارس" للأنباء الإيرانية، اليوم الثلاثاء، صورا للزورق الذي توجه نحو القوة الأمريكية واحتجز أفرادها منذ أسابيع قليلة، وقالت إنه يسمى "تندر"، وهو من نوع الزوراق ...
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