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Coast Guard Mid-Shore Multi-Mission Vessel

Kirkhill

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Using the neither fish nor fowl justification with the Coast Guard being DND but not Navy and performing securitry tasks with ships that could be twins to those operated by the Navy (looking at AOPS), I am posting this in the Navy boards.




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In Norwegian Coast Guard style the ship has a bang-stick.

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The MSMM are expected to be 45 to 50m in length and a tonnage of < 1000MT. They will have a range of up to 3000nm and an endurance of up to 17 days. The MSMM will also be Ice-Strengthened with the class expected to be rated at minimum Ice Class-1C per DNV standards.

Ice Class 1C signifies that a vessel is designed and strengthened to navigate in light ice conditions, specifically characterized by first-year ice with a thickness of up to 0.6 meters. Per DNV standards, this classification confirms that the ship's hull, propeller, and steering gear are reinforced to withstand the thermal and mechanical stresses of ice interaction.

The MSMM will operate year-round within the Canadian waters of the Atlantic and Pacific Oceans, the Gulf of St. Lawrence, the Great Lakes, and the St. Lawrence Seaway. On the Atlantic Coast it will be limited to as far as 60° North latitude during the summer months.

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I think this Nornen class might be most reflective of the type of ship being considered.

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2007 design (contemporaneous to the Svalbard)
47m overall.
Light at 800 tonnes
Complement of 20.
Diesel-Electric.

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"They provided significantly improved capabilities in all regards compared to the vessels they replaced. This included seaworthiness (they are larger), towing capacity, fire fighting and environmental protection (collecting oil spills). The aft deck is for the winch only (not for helicopter landing)."

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This is the Home Guard's version of the same ship

The Coast Guard got 5 Nornens in 2007 and the Home Sea Guard got 2 Reines in 2010. Following Canadian practice, in 2013 the Reines were transferred to the real Navy for logistics support. The carry containers and small boats.

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Related - Norwegian UK co-op


Norway to buy Type 26s and stuff.

The RN and Norway to buy smaller patrol ships of the Multi-Role type for general duties including sea bed security

"The most notable development is the confirmation that the UK will join Norway in the development of a new class of multirole, modular ships that the Royal Navy will, in particular, use as the motherships for its Mine Hunting Capability (MHC) program. Under known plans, the Royal Navy will be procuring at least 3 such vessels for entry in service between 2029 and 2031 as replacement for the current remaining HUNT and SANDOWN-class MCM vessels. The “Offshore Support Vessels” will serve as motherships for the MHC suite of mine-countermeasure drones for out of area operations, with HMS STIRLING CASTLE intended to deliver “home waters” service.

"This official confirmation does not surprise and comes after the Royal Navy already last year had awarded Norway’s Kongsberg a first contract for a six months study over the organisation of modular spaces and launch & recovery arrangements. Kongsberg has a template for these necessities that it markets under the name VANGUARD."

Kongsberg Vanguard


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By the way, the opening article is really dense.

Essentially the UK and the Norwegian Navy will be buddying up in the GIUK Gap and the North Sea with Project Cabot/Atlantic Net/Atlantic Bastion.

Baseline of 13 Type 26s between them supporting a fleet of Type 93 Chariot XLUUV (12m, 17 tonnes and >1000 NM) and Type 92 Sloop USV (40-45 m, 2500 tonne, 14/27 knots, uncrewed).

Backed up by P8s, Merlins and Lynxes.

Armed with Stingrays, including a rocket launched long range version compatible with the Mk41 VLS launchers on the Type 26s, and likely the Sloops and Chariots. It P8 will also be compatible with the Stingray.

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Seabed security and minehunting to be supplied by Offshore Supply Vessels, three new build from Norway for distant waters and the Stirling Castle to be retained for home waters.

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So where does the Coast Guard end and the Navy begin?
 
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