Class | Mackinaw Class Icebreaker
|
Builder | Toledo Shipbuilding Company
|
Keel Laid | 20 March 1943
|
Launched | 4 March 1944
|
Commissioned | 20 December 1944
|
Decommissioned | 10 June 2006
|
Cost | $8,830,198 (hull & machinery); reportedly over $10 million total cost
|
Length | 290'
|
Beam | 74' 4" - 74.5
|
Draft | 19' maximum
|
Displacement |
5,200 tons (1944)
5,252 tons
|
Propulsion |
3 electric motors driven by
6 Westinghouse DC generators driven by
6 Fairbanks Morse, 10-cylinder, 2-cycle diesels; 12,000 SHP;
|
propellers |
two 14-foot diameter stern propellers;
one 12- foot diameter bow propeller
|
power | total 10,000 shp (7,500 kW)
|
Performance |
|
Max |
16 knots (1944);
18.5 knots (1975)
15 kn (28 km/h; 17 mph)
|
Economic | ...
|
Fluid Capacities (in gallons) |
|
Diesel Oil | 346,910 U.S. gal 276,000 U.S. gal (1,040,000 L)
|
Potable Water | 40,200 U.S. gal
|
Heel & Trim Ballast Water | 345,828 U.S. gal
|
Lubrication oil | 7,000 U.S. gal (26,000 L)
|
Deck Gear |
2 x 12-ton cranes (removed & replaced with a Hiab Cargo Crane, 1,000-lbs. maximum load)
1 x Almon Johnson Constant Tension Towing Winch w/ 94,000 lbs. maximum-rated pull
4 x Constant Tension Winches (2 forward; 2 stern)
|
Anchors | 2 x Dunn Bower 6,000-lbs anchors
|
Complement | 144 (1944);
75 (1975) 8 Officers, 67 Enlisted
|
Armament | none (small arms only)
|
Small Boats | 25-foot MSB (1975)
|
Electronics | SL-1 radar (1944)
|