DS30B rapid fire cannon

DS30B system on HMS Blyth

The DS30B rapid-fire cannon is a 30 mm Oerlikon stabilized, ship-protection system created by MSI-Defence Systems and controlled by a single operator.

Description

The DS30B system consists of a marinized, stabilized gun mount which accommodates the Oerlikon KCB 30 mm cannon. The DS30B is the predecessor to the 30mm DS30M Mark 2 Automated Small Calibre Gun, which mounts a 30 mm Mark 44 Bushmaster II.

Operators

Map with users of the DS30B rapid fire cannon in blue

Australia ^[1]

• Used by the Royal Australian Navy to equip Huon-class minehunters

Indonesia ^[2]

• Used by the Indonesian Navy to equip Bung Tomo-class corvettes

Lithuania ^[3]

• Used by the Lithuanian Naval Force to equip the minehunters Skalvis and Kuršis.

Malaysia

• Used by Royal Malaysian Navy to equip the following ships:
  • Lekiu-class frigates
  • Kasturi-class corvettes ^[4]
  • Gagah Samudera-class training ships

United Kingdom ^{[ citation needed ]}

• The Royal Navy uses the system to equip the following ships:
  • Type 45 destroyer
  • Sandown-class minehunters
  • Hunt-class mine countermeasures vessels
  • Bay-class landing ships
  • Tide-class tankers

References

1. "DS30B". Royal Australian Navy. Retrieved 18 April 2018.
2. "DS 30B REMSIG 30mm: Dibalik Kecanggihan Kanon PSU di Korvet Bung Tomo Class TNI AL". Indomiliter.com. 2 August 2014. Retrieved 29 October 2019.
3. "Lithuanian Navy commissions Royal Navy's two former minehunter vessels". Naval Technology. Retrieved 26 July 2025.
4. "Malaysian Kasturi-class corvette KD Lekir successfully fired anti-ship missile". Navy Recognition. 24 August 2021. Retrieved 10 December 2022.