uscg polar class icebreaker

The USCG Polar class of heavy icebreakers consists of three vessels, the WAGB-10 USCGC Polar Star, the WAGB-11 USCGC Polar Sea, and the WAGB-20 USCGC Healy. These cutters, specifically designed for open-water icebreaking have reinforced hulls, special icebreaking bows, and a system that allows rapid shifting of ballast to increase the effectiveness of their icebreaking. These vessels conduct Arctic and Antarctic research and are the primary icebreakers which clear the channel into McMurdo Station for supply ships. All are homeported out of Seattle, Washington.

Healy Specifications

Length: 420 feet
Beam: 82 feet
Designed Draft: 29 feet
Displacement : 16,000 tons
Propulsion: Diesel Electric, AC/AC Cycloconvertor
Shaft Horsepower: 30,000 Max HP
Commissioned: June 1999

Polar Class Specifications

Length: 399 feet
Beam: 83.5 feet
Designed Draft: 28 feet
Top of mast above waterline: 138 feet
Displacement (28' draft): 13,194 tons
Potable water (100%): 26,586 gallons
General cargo: 400 tons
Cargo volume (upper/lower hold): 350/250 m3
Maximum cargo dimensions: 7'W x 11'L x 7'H
Commissioned: 1976 & 1978

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