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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[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.

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, 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
  • Elevation: -12 to +87 degrees at 50 degree/s
  • Mounting weight: 1857 kg to 1905 kg
  • Rate of fire: 2,000 rpm (system)
  • 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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74 news items

 
Derwesten.de
Thu, 01 Jan 2015 15:21:51 -0800

In der AK 200 holten sich Thomas Romahn, Michael Meik, Rainer Hatko und Heiko Venohr den Weltmeistertitel in der 4x25 m Puppenstaffel, Die AK 230 gewann in der Besetzung Karl-Heinz Schanz, Manfred Wöllke, Martin Zielony und Herbert Bloch in 1:50 ...

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Qoos News
Wed, 07 Jan 2015 23:52:30 -0800

武器方面,最初阿奴律陀級艦首設置一座OTO Melera 76mm 62倍徑快炮(可能是緬甸海軍從某些管道獲得的二手貨)以及反潛火箭發射器,艦體後部設置一座AK-230 30mm機炮與兩組中國制雙聯裝C-802反艦飛彈發射器(朝兩舷斜前方)。在2011年左右,兩艘阿奴律陀 ...

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Military Modelling
Fri, 02 May 2014 05:22:30 -0700

Coupled with this were two of the earliest remote close-in Weapon systems, with 2x AK-230 twin 30mm gun turrets. It had 3 diesel engines, powering three screws, they could achieve speeds in excess of 40 knots. It had a steel hull and a crew of 29.
 
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Mon, 11 Mar 2013 12:09:25 -0700

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Derwesten.de

Derwesten.de
Wed, 24 Sep 2014 08:36:45 -0700

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Wed, 17 Sep 2014 16:03:45 -0700

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Sun, 18 May 2014 20:41:31 -0700

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Fri, 18 Jul 2014 18:05:10 -0700

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