More info on the new class of three planned Coast Guard Polar Security Cutters has bubbled up.
In short, they will be big boys, at 460-feet long and 33,000-tons. For reference, the Coast Guard’s current 50-year-old icebreaker, USCGC Polar Star (WAGB-10), is 399-feet long and weighs in at comparatively paltry 13,800-tons.
However, the Polar Sea is a bruiser, packing 75,000 shaft horsepower in her CODAG plant. This allows her to crush up to 21 feet of ice by backing and ramming and cruise through 6-feet of pack at a continuous 3 knots. According to a statement released this week, the new PSC’s will have 42,500 shp but will still meet an 8-foot mark on ice-busting.
Of note, the Coast Guard’s single medium icebreaker, the 11,000-ton Healy can crack ice up to 10 feet thick.
More from VTH in Moss Point:
As you can see, the design is based on Finnish and German tech that is being used on the (under construction) German research breaker Polarstern II, which is about the same size.
The plan for Polarstern II is a good starting point as that ship includes:
-Maximum 130 persons on board.
-44 person crew living in single and double rooms.
-Normal cruises up to 60 scientists.
-Safety equipment (lifeboats) on each side 100%.
-80 places for 20” Containers (laboratories and storage).
-Seakeeping stabilizer suitable for the transit cruises and station operation.
-Helicopter Deck and Hangar for 2-3 Helicopters.
In short, these big breakers, larger than the planned German ship, could potentially carry a light company-sized landing force with a couple of helicopters.
Currently, the USCG’s cutters just carry a small arms locker with the capability to mount a couple of M2 .50-cals if absolutely needed. The penguins and polar bears have not put up much of a fight in recent years.
That could be changing.
Changes from the design to make the Coast Guard’s new vessel capable of fighting are still being decided. However, according to the USNI, “The ship’s combat system will be derived from the Aegis Combat System, and the Coast Guard is still mulling over the weapons loadout, [USCG Adm.] Schultz told reporters on Wednesday.”
In 2017, Coast Guard Commandant Paul Zukunft said the new icebreakers would be fully weaponized to include canister launched anti-ship missiles.
“We need to look differently at what an icebreaker does… We need to reserve space, weight, and power if we need to strap a cruise missile package on it… U.S. presence in the Arctic is necessary for more than just power projection; it’s a matter of national security… If they remain unchecked, the Russians will extend their sphere of influence to over five million square miles of Arctic ice and water.”
Things could get interesting.