WTGB-140 Bay-class - Large Icebreaking Tug
| Number in Service | 9 |
| Commissioned | 1979-1988 |
| Length | 140 feet |
| Beam | 37.5 feet |
| Displacement | 662 tons |
| Power Plant | Two Fairbanks-Morse diesel engines, electric drive, one shaft, 2,500 shp |
| Speed | 14.7 knots |
| Range |
1,500 nautical miles at 14.7 knots 3,500 nautical miles (6,500 km) at 12 knots 4,000 nautical miles at 12 knots 6,000 nautical miles (11,000 km) at 10 knots 7,000 nautical miles at 7 knots |
| Bouy handling derrick | 1 (20 tonne) |
| Armament | Two M60 Machine guns |
| Icebreaking capability | 18-22 inches at 3 knots continuous |
| personnel | 15 enlisted members 3 officers |
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