Mitsubishi Heavy Industries Receives Order for Water Jet Propulsion Unit for Offshore Wind Crew Transfer Vessel (CTV) Training
MHI has received an order for an advanced water jet propulsion unit for a 19-ton training CTV operated by the Nagasaki Maritime Human Resources Development Association. The vessel will be used for practical training at Japan's first dedicated offshore training tower, featuring MHI's proprietary maneuvering support technologies such as auto-following and dynamic positioning to enhance efficiency in offshore wind farm maintenance.
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- 📰 Published: May 18, 2026 at 22:16
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### MHI Delivers Advanced Propulsion for Offshore Wind Training
Mitsubishi Heavy Industries (MHI) has received an order from Okishin Shipbuilding Co., Ltd. (Sasebo, Nagasaki) for a water jet propulsion unit to be installed on a 19-ton Crew Transfer Vessel (CTV). This vessel is owned by the Nagasaki Maritime Human Resources Development Association, a non-profit organization.
The vessel, built with support from The Nippon Foundation, will be utilized for practical training—including CTV maneuvering, personnel transfer, and underwater surveys—at Japan’s first dedicated offshore training tower located off the coast of Takashima, Nagasaki.
#### Key Technical Features of the New Water Jet System
- **High-Performance Hydro Model:** Features a proprietary axial-flow hydro model that enhances propulsion efficiency and the 'pushing force' against wind turbine foundations.
- **Improved Maneuverability:** Enhanced steering systems for better control in challenging tidal and wave conditions.
- **Environmental Consideration:** Uses water-lubricated bearings (no oil) and a structure that keeps hydraulic piping inside the hull to prevent environmental contamination.
#### Advanced Maneuvering Support Functions
- **Auto-Following Function:** Automatically tracks moving targets on or under the water. It uses real-time data from underwater inspection equipment and sensors to follow at a preset distance.
- **Dynamic Positioning (Station Keeping):** Uses GPS and other data to automatically maintain the vessel's position and heading, essential for long waits near turbines or during underwater survey equipment deployment.
MHI, as a leading domestic manufacturer of water jet propulsion units, remains committed to providing innovative solutions that meet the evolving needs of the offshore wind and maritime industries.
Mitsubishi Heavy Industries (MHI) has received an order from Okishin Shipbuilding Co., Ltd. (Sasebo, Nagasaki) for a water jet propulsion unit to be installed on a 19-ton Crew Transfer Vessel (CTV). This vessel is owned by the Nagasaki Maritime Human Resources Development Association, a non-profit organization.
The vessel, built with support from The Nippon Foundation, will be utilized for practical training—including CTV maneuvering, personnel transfer, and underwater surveys—at Japan’s first dedicated offshore training tower located off the coast of Takashima, Nagasaki.
#### Key Technical Features of the New Water Jet System
- **High-Performance Hydro Model:** Features a proprietary axial-flow hydro model that enhances propulsion efficiency and the 'pushing force' against wind turbine foundations.
- **Improved Maneuverability:** Enhanced steering systems for better control in challenging tidal and wave conditions.
- **Environmental Consideration:** Uses water-lubricated bearings (no oil) and a structure that keeps hydraulic piping inside the hull to prevent environmental contamination.
#### Advanced Maneuvering Support Functions
- **Auto-Following Function:** Automatically tracks moving targets on or under the water. It uses real-time data from underwater inspection equipment and sensors to follow at a preset distance.
- **Dynamic Positioning (Station Keeping):** Uses GPS and other data to automatically maintain the vessel's position and heading, essential for long waits near turbines or during underwater survey equipment deployment.
MHI, as a leading domestic manufacturer of water jet propulsion units, remains committed to providing innovative solutions that meet the evolving needs of the offshore wind and maritime industries.
FAQ
What does the CTV training in Nagasaki involve?
It involves practical training at a dedicated offshore tower near Takashima, including boat handling, safe personnel transfer, and underwater surveys using MHI's advanced support systems.
Why was MHI's water jet system chosen?
Due to its high propulsion efficiency, advanced support functions like auto-following for stable handling in rough seas, and its eco-friendly, oil-free design.
Why are CTVs important for offshore wind?
Offshore wind turbines require regular maintenance. CTVs are essential for safely and efficiently transporting workers and equipment to these remote sites, impacting overall project uptime.