Rescue vessel
Bay class icebreaking tug (140 ft)
United States Coast Guard · United States
Icebreaking tug used on the Great Lakes and north-east ports for ice breaking, SAR and towing.
Specifications
Hull & dimensions
- Manufacturer / builder
- —
- Hull type
- —
- Hull material
- —
- Watertight compartments
- —
- Length overall
- 42.7 m (140.1 ft)
- Length at waterline
- —
- Beam
- 11.4 m (37.4 ft)
- Draught
- 3.8 m (12.5 ft)
- Freeboard at bow
- —
- Freeboard at stern
- —
- Displacement
- 662 t (729.7 US tons)
- Gross tonnage
- —
- Net tonnage
- —
- Min vertical clearance
- —
- Height to highest unfixed point
- —
- Height to highest fixed point
- —
- Number built
- 9
- Year introduced
- 1979
- Year retired
- —
Machinery & propulsion
- Propulsion type
- Diesel-electric
- Engines
- —
- Engine manufacturer
- —
- Total engine power
- —
- Fuel type
- —
- Total fuel capacity
- —
- Fresh water capacity
- —
- Launch method
- —
Members-only
Operating limits (seas, surf, wind), towing and stability data, and detailed engineering specifications are available to Members.
Performance & capabilities
- Maximum speed
- 14.7 kn (27.2 km/h · 16.9 mph)
- Range
- 1,500 nm (2,778 km · 1,726 mi)
- Endurance
- —
- Crew complement
- 17
- People capacity
- —
- Self-righting
- —
- Self-bailing
- —
- Ice operations capable
- —
- Max ice-breaking thickness
- —
- Medical facilities onboard
- —
Members-only
Operating limits (seas, surf, wind), towing and stability data, and detailed engineering specifications are available to Members.
Operational envelope & limits
Members-only
Operating limits (seas, surf, wind), towing and stability data, and detailed engineering specifications are available to Members.
Source citations
| # | Source | Type | Supports | Accessed |
|---|---|---|---|---|
| [1] | Bay-class tugboat Wikipedia https://en.wikipedia.org/wiki/Bay-class_tugboat | reference | General | 2026-09-30 |