Rim Drive Tunnel Thruster (RD-TT)
Embracing Decarbonization for a Sustainable Future
The KONGSBERG Rim Drive Tunnel Thruster (RD-TT) advances marine technology with a focus on sustainability, efficiency, and environmental protection. Its low environmental footprint, enhanced hydrodynamic efficiency, and minimized hydroacoustic noise significantly contribute to decarbonization efforts and the protection of marine life in the maritime industry.
Rim Drive Tunnel Thruster (RD-TT)
Suitable Applications
The RD-TT is designed for the most demanding marine environments, making it ideal for:
- Dynamic positioning vessels
- Offshore supply vessels
- Ferries
- Cruise ships
- Research vessels
The RD-TT's advanced PM motor technology ensures unmatched efficiency and performance, vital for eco-friendly maritime operations.
Features & advantages
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Main Features
- Compact Inboard Footprint: Saves valuable space on board.
- Electric and Hydrodynamic Efficiency: Maximizes performance and reduces energy consumption.
- Robust Design: Durable construction with minimal rotating parts.
- Seawater Cooling: Thruster unit is efficiently cooled by surrounding seawater, eliminating the need for additional cooling systems.
- Space-Saving PM Technology: High torque density in a compact form.
- Sturdy Centre Shaft: Capable of carrying all propeller loads.
- Simplified System Design: Minimal auxiliary equipment needed.
- EHM System Ready: Easy integration with Equipment Health Management systems.
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Key Benefits
- Equal Thrust in Both Directions: Ensures maneuverability and control.
- Compact Footprint: Saves space in the thruster room.
- Low Noise and Vibrations: Minimizes hydroacoustic noise, protecting marine life.
- Quick Response Time: Efficient roll-damping for better stability.
- Cost Efficiency: Reduced life cycle and installation costs.
- Long Service Intervals: Lower maintenance frequency for operational reliability.
- Robust Design: Durable with minimal rotating parts.
- Ease of Integration: Simple connection to Equipment Health Management systems.
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Reliable, Efficient, and Cost-Effective
The Rim Drive Tunnel Thruster (RD-TT) is designed for reliability and reduced life cycle costs. Its permanent magnet motor technology enhances efficiency and compactness, with only the variable frequency drive unit housed in the thruster room, saving onboard space.
Available in 1,000 and 1,600 kW, the RD-TT is ideal for demanding applications like dynamic positioning.
Rim Drive Tunnel Thruster
| Thruster type | RD-TT 1600 | RD-TT 2000 |
| Power (kw) | 500 – 1000 | 1000 - 1600 |
| Thrust (kN) | 156 kN | 243 kN |
| RPM | 340 | 280 |
| Propeller dia (mm) | 1600 | 2000 |
| Propeller type | Monobloc/FP | Monobloc/FP |
| Direction of rotation | CW/CCW | CW/CCW |
| Drive | AFE or 12 pulse drive | AFE or 12 pulse drive |
Space saving installation
Due to its symmetric design the permanent magnet tunnel thruster provides increased flexibility for the ship designer to achieve a more optimal and space-saving installation.
Kongsberg Rim Drive Tunnel Thruster (RD-TT) is formerly known as Permanent Magnet Tunnel Thruster (TT-PM)
Services and support
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24/7 Technical support
Our 24/7 technical support team is there to help at any time, day or night, wherever your vessel is.
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Conversions, retrofit and refit
We understand the importance of having the right parts, available in the right place, at the right time.
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Training
Ensure that your crew is properly and thoroughly trained. This will reduce operational risk, downtime and maximise return on asset investment.