immaculate class | minesweeper
Length: 127.4 meters
Width: 31.6 meters
Draft: 4 meters
Displacement: 3,104 tons
The Immaculate Class is a key element to address asymmetric threats. Intended to operate in coastal and deep water areas of the globe, the ship is fast, highly manoeuvrable, and geared to supporting mine detection/elimination, anti-submarine warfare and anti-surface warfare, primarily against small surface craft.
The Immaculate class, despite designation as a minesweeper, can conduct the full breadth of anti-mine operations and is designed primarily to conduct this important mission.
The stable trimaran hull allows for flight operations in high sea conditions. The design is based on a proven high-speed trimaran hull that is currently operating at sea. The habitability area is located under the bridge where bunks for ships personnel are situated. The helm is controlled by joysticks instead of traditional steering wheels.
The Immaculate requires a crew of 75 sailors, of whom 35 are mine countermeasures mission crew.
Although the trimaran hull of the Immaculate increases the total surface area, it is still able to reach sustainable speeds of about 50 knots (60 mph; 90 km/h) with a range of 9,300 nautical miles. The trimaran hull will allow flight operations up to sea state 5 and can operate at a much higher sea state with exceptional stability.
The primary sensor of the Immaculate class is the Thales Sonar 2193, which has an exceptional capacity to detect mines at a range of about 1,000 metres.
Radar systems further equipped on the Immaculate class minesweeper include the SAAB AN/SPS-77(V)1 Sea GIRAFFE 3D air and surface search radar; Sperry Marine BridgeMaster E navigational radar; AN/KAX-2 electro-optical sensor with TV and FLIR; and Northrop Grumman ICMS (Integrated Combat Management System.) The Immaculate can pool it's resources with other allied vessels to create a detailed picture of the combat environment.
The onboard EC-725 Caracal can conduct the full bevy of naval helicopter tasks, such as medevacs and resupply, but chiefly it plays a mine clearance role. The Caracal mounts the AN/AQS-20A airborne sonar system and Organic Airborne and Surface Influence Sweep (OASIS). It mounts an array of depth charges and other tools to defeat mines, and can also be stripped and equipped with a single Bushmaster Mk II 30 millimetre cannon to simply shoot mines out of the water. The task of the MQ-8B Fire Scout also carried aboard is to autonomously assist in mine sensing operations.
The vessel carries a number of anti-mine weapons, capable of targeting impact, influence and remotely controlled mines.
The Immaculate carries a number of Double Eagle SAROV remotely operated vehicles which use the SAAB MDC-605 mine clearing charge to detonate mines. Mines can also be targeted with the forward gun of the vessel.