The 30mm DS30M Mark 2 is a ship-protection system made by MSI-Defence Systems consisting of a
30mm Mark 44 Bushmaster II cannon
A cannon is a large-caliber gun classified as a type of artillery, which usually launches a projectile using explosive chemical propellant. Gunpowder ("black powder") was the primary propellant before the invention of smokeless powder during th ...
on an automated mount. It was designed to defend
Royal Navy
The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...
frigate
A frigate () is a type of warship. In different eras, the roles and capabilities of ships classified as frigates have varied.
The name frigate in the 17th to early 18th centuries was given to any full-rigged ship built for speed and maneuvera ...
s from fast inshore attack craft armed with short-range missiles,
rocket-propelled grenades
A rocket-propelled grenade (RPG), also known colloquially as a rocket launcher, is a Shoulder-fired missile, shoulder-fired anti-tank weapon that launches rockets equipped with a Shaped charge, shaped-charge explosive warhead. Most RPGs can ...
,
machine guns, or explosives.
Description
The DS30M Mark 2 system consists of a
30mm Mark 44 Bushmaster II[ on a fully automated mount or via manual control][ with an off-mount electro-optical director (EOD).][ The gun and the EOD can be controlled from a remote operator console elsewhere on the ship. The weapon is a gyro-stabilized, electrically operated, self-contained, single cannon mount featuring a choice of weapon, control mode and sights. It has low magnetic, radar and ]infrared
Infrared (IR; sometimes called infrared light) is electromagnetic radiation (EMR) with wavelengths longer than that of visible light but shorter than microwaves. The infrared spectral band begins with the waves that are just longer than those ...
signatures with good availability, reliability and maintainability (ARM).[Global Security ''Mk 44 Bushmaster II 30/40mm Automatic Cannon / Mk 46 Weapon Station'']
In theory, the dual feed system of the Bushmaster series allows the operator to select different types of ammunition for use against a variety of targets.
History
In August 2005, the Maritime Gunnery and Missile Systems Integrated Project Team in the UK Ministry of Defence
A ministry of defence or defense (see American and British English spelling differences#-ce.2C -se, spelling differences), also known as a department of defence or defense, is the part of a government responsible for matters of defence and Mi ...
awarded MSI-Defence Systems (part of MS International PLC) a contract to supply a total of 26 Automated Small Calibre Guns (ASCG) systems for retrofit to the 13 Type 23 frigate
The Type 23 frigate or Duke class is a class of frigates built for the United Kingdom's Royal Navy. The ships are named after British Dukes, thus leading to the class being commonly known as the Duke class. The first Type 23, , was commission ...
s of the Royal Navy
The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...
(RN) as part of their littoral
The littoral zone, also called litoral or nearshore, is the part of a sea, lake, or river that is close to the shore. In coastal ecology, the littoral zone includes the intertidal zone extending from the high water mark (which is rarely i ...
Defensive Anti-Surface Warfare
Anti-surface warfare (ASuW or ASUW) is the branch of naval warfare concerned with the suppression of surface combatants. More generally, it is any weapons, sensors, or operations intended to attack or limit the effectiveness of an adversary's ...
upgrade in a contract was worth more than £15 million (US$30.7 million).[ The system was bought after Fleet Command and the UK Ministry of Defence's (MoD's) Directorate Equipment Capability identified a gap in capability in the RN's ability to defend itself against swarming fast attack craft threats.][
MSI undertook land-based trials at Eskmeals Firing Range in ]Cumbria
Cumbria ( ) is a ceremonial county in North West England. It borders the Scottish council areas of Dumfries and Galloway and Scottish Borders to the north, Northumberland and County Durham to the east, North Yorkshire to the south-east, Lancash ...
.[ In mid-2007, MSI delivered the first two mountings, which were installed on HMS ''Somerset'' in August 2007, and used in sea trials on gun ranges in the ]English Channel
The English Channel, also known as the Channel, is an arm of the Atlantic Ocean that separates Southern England from northern France. It links to the southern part of the North Sea by the Strait of Dover at its northeastern end. It is the busi ...
starting in October 2007.[
In 2008, the management consultancy company CORDA (part of ]BAE Systems
BAE Systems plc is a British Multinational corporation, multinational Aerospace industry, aerospace, military technology, military and information security company, based in London. It is the largest manufacturer in Britain as of 2017. It is ...
) was awarded a £300,000 research contract by the UK MoD's Defence Technology and Innovation Centre to assess the level of protection British warships receive from small calibre 30mm guns. CORDA's programme manager said: "What we are doing is looking at the performance of the Royal Navy's 30mm Automated Small Calibre Gun and what can be done to increase the level of protection it provides. ..The ASCG system has significantly enhanced capability, but we have been asked to look at how improving tactics or integrating further technology could improve the performance of the system."[ The study used simulator-based operator trials at the Maritime Warfare School to quantify the performance of the weapon system when engaging multiple targets.][
In 2019, a trial was carried out on board HMS ''Sutherland'' to test the fitting and operation of Martlet light surface-to-surface missiles on a modified DS30M Mark 2 mount. While initial reports suggested that the tests were deemed successful, subsequent reports indicated otherwise. As a result, Martlet has not been integrated into Royal Navy DS30M Mk 2 mounts in the surface-to-surface mode.
]
Operators
;
*The system is fitted to the Royal Navy's Type 23 frigates and River-class Batch II offshore patrol vessels.
;
*The system is fitted to fifteen Swiftships patrol boat
A patrol boat (also referred to as a patrol craft, patrol ship, or patrol vessel) is a relatively small naval ship, naval vessel generally designed for Coastal defence and fortification, coastal defence, Border control, border security, or law ...
s of the Iraqi Navy
The Iraqi Navy (), is the naval warfare service branch of the Iraqi Armed Forces, Armed forces of Iraq. Formed in 1937, initially as the ''Iraqi Coastal Defense Force,'' its primary responsibilities was the protection of Iraq's coastline and off ...
.[Swiftships Orders Build Iraqi Navy’s Coastal Patrol Capabilities](_blank)
;
*The system is fitted to three s for the Royal Navy of Oman
The Royal Navy of Oman (), abbreviated RNO, is the maritime component of the Royal Armed Forces of the Sultanate of Oman. Given its long coastline and strategic location along the Indian Ocean, as well as being close to the Strait of Hormuz, ...
.[Naval Technology.com]
;
*The system is fitted to HTMS ''Bhumibol Adulyadej'' and ''Naresuan-''class frigates, HTMS ''Angthong'' amphibious assault ship
An amphibious assault ship is a type of warship employed to land and support ground forces on enemy territory during an armed conflict. The design evolved from aircraft carriers converted for use as helicopter carriers (which, as a result, ar ...
, HTMS ''Krabi'', Laemsing and ''Tor-''class patrol boats.[Royal Thai Navy Combatant Ship Specification](_blank)
, thaiarmedforce.com, 21 January 2010
;
*Planned to be used by Royal Malaysian Navy
The Royal Malaysian Navy (RMN, ; Jawi alphabet, Jawi: ) is the naval arm of the Malaysian Armed Forces. RMN is the main agency responsible for the country's maritime surveillance and defence operations. RMN's area of operation consists of 603,2 ...
on six ''Maharaja Lela''-class frigates.
;
*Used by Brazilian Navy
The Brazilian Navy () is the navy, naval service branch of the Brazilian Armed Forces, responsible for conducting naval warfare, naval operations.
The navy was involved in War of Independence of Brazil#Naval action, Brazil's war of independence ...
. The system equips the three ''Amazonas-''class offshore patrol vessels and the NAM ''Atlântico''.
See also
* DS30B rapid fire cannon
* Active Royal Navy weapon systems
References
External links
SEAHAWK
{{DEFAULTSORT:30mm Ds30m Mark 2 Automated Small Calibre Gun
Naval anti-aircraft guns
30 mm artillery
Close-in weapon systems
Military robots
Naval guns of the United Kingdom
Military equipment introduced in the 2000s