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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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115 news items

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Wed, 20 Apr 2016 19:50:40 -0700

该舰主要执行在近海驱逐和打击敌方潜艇的任务,但无论是SA-N-5近程防空导弹,还是AK-230机关炮,都已经老态龙钟,对空防御能力非常有限,且无反导能力。因此,印尼海军选用中国730系统对该舰进行改装,进一步增强该舰的 ...

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Mon, 25 Jan 2016 12:30:50 -0800

The Black Sea Fleet is an operational-strategic command of the Russian Navy located on the Black Sea which also includes the ships harbored in the Azov Sea. The history of the fleet begins in the late 18th century in the city of Sevastopol. At that ...

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

... by the U.S. Department of Defense formed the heart of what 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 ...

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vietbao.vn (lời tuyên bố phát cho các báo)
Fri, 08 Apr 2016 19:26:35 -0700

Pháo hạm 30mm nòng kép kiểu 69 sao chép mẫu AK-230 của Liên Xô. Theo haijun360, đây là loại pháo tự động hoàn toàn có tốc độ bắn 2000 phát/phút với sơ tốc đầu nòng 1050 m/giây. Tầm bắn có hiệu quả của pháo là 3.334m. Vao tham bao tang hai ...

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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 ...

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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 ...

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Mon, 09 Feb 2015 08:42:11 -0800

The 30 mm gun appears to use a modified AK 230 mount with a six barrelled AO-18 type cannon. Want to read more? For analysis on this article and access to all our insight content, please enquire about our subscription options ihs.com/contact. Related ...

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Sun, 14 Dec 2014 17:36:23 -0800

Other armament included 100mm guns and 57mm dual cannons at the bow and stern of the ship, six 2M3 25mm dual cannons around the midsection, two AK-230 30mm automated dual guns and anti-submarine depth charges. The 100mm, 57mm and 25mm ...
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