Description
Vessel Specification: High-Performance Azimuth Tugboat
Class: Lloyd’s Register | Designer: Robert Allan Ltd.
This specification sheet outlines a powerful and modern azimuth stern drive (ASD) tugboat, designed for demanding port, offshore, and escort operations.
1. Principal Dimensions & Tonnage
| Parameter | Value | Units |
|---|---|---|
| Length Overall (LOA) | 31.5 | m |
| Breadth Moulded | 13.7 | m |
| Beam to Length Ratio | ~0.435 | – |
| Design Draft | 6.4 | m |
| Gross Tonnage | < 500 | GT |
- Design Note: The broad beam relative to length provides exceptional inherent stability, a critical feature for a powerful tug.
2. Propulsion & Performance
| Parameter | Value | Units |
|---|---|---|
| Main Engines | 3 x Caterpillar | – |
| Total Installed Power | 3 x 1,765 (5,295 total) | kW |
| Propulsion System | Schottel Azimuth Thrusters | – |
| Bollard Pull | 85 | tonnes |
| Free-Running Speed | 12.5 | knots |
- Performance Analysis:
- Bollard Pull: The primary measure of a tug’s power. At 85 tonnes, this vessel is classified as an ultra-high-performance tug, capable of handling the largest vessels afloat (VLCCs, ULCCs, and large container ships).
- Propulsion: The Schottel Azimuth Thrusters provide 360-degree maneuverability, allowing the tug to generate thrust in any direction with pinpoint control.
- Powerplant: The triple-engine configuration offers significant redundancy and power reserves, ensuring operational reliability.
3. Tank Capacities & Endurance
| Parameter | Value | Units |
|---|---|---|
| Fuel Oil Capacity | 186,000 | litres |
| Fresh Water Capacity | 27,000 | litres |
- Operational Context: The substantial fuel capacity ensures long operational endurance for extended port operations, offshore towage, or standing by on a project without frequent refueling.
4. Accommodation & Certification
| Parameter | Value | Units |
|---|---|---|
| Crew Accommodation | 8 | Persons |
- Certification: Built to the stringent standards of Lloyd’s Register, ensuring compliance with international safety and construction regulations. The design by the renowned Robert Allan Ltd. confirms a focus on advanced naval architecture and operational efficiency.
Summary of Key Capabilities:
- Maximum Power: An 85-tonne bollard pull places this tug in the top tier of harbor and offshore tugboats.
- Superior Maneuverability: Azimuth thrusters offer unmatched control for ship-handling, docking, and escort roles.
- Robust & Redundant Design: Triple-engine configuration and LR classification ensure high reliability and safety.
- Extended Operations: Large tank capacities support long missions without logistical interruption.
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