Kongsberg Maritime has launched a new tunnel thruster – type TTH, the Harmonised series – with a compact, modular design that allows for flexible installation and optimal integration into a wide range of vessel types, including cruise ships.
“This enhanced and harmonised thruster range was developed based on our experience and expertise of over 60 years.
“The range offers performance and easy installation, something that is demanded by several vessel segments, and we will continue to develop the range to eventually meet the needs of owners in every segment, from workboats to large cruise ships,” Anton Westerlund, Kongsberg’s Vice President Product Management, Thruster Systems.
Key innovations include:
- Compact thruster design for easier hull integration and reduced installation footprint.
- Modular design with one core module covering several propeller diameters.
- Hydrodynamically optimised blades for improved efficiency and reduced noise and vibration.
- Equipment health monitoring (EHM)-compatible.
- Optional non-polluting sealing solutions available.
- Suitable for the highest Baltic ice classes – Polar Class 6 and 7.
The clearance between the propeller blade tip and the tunnel plating on the new design has been increased, allowing for easier installation and the reduction of paint erosion in the propeller path. It also further reduces noise and vibration levels.
The new TTH series also meets the demanding requirements of dynamic positioning (DP) and auxiliary propulsion applications, the company claimed.
It supports both controllable pitch (CP) and fixed pitch (FP) configurations and is fully interchangeable with existing Kongsberg type TT thrusters.
Optional features such as the super silent (SS) tunnel and trunk mounted (TM) configuration further enhance on board comfort and maintainability.
TTH units will be part of Kongsberg Maritime’s thruster support pool, which drastically cuts thruster maintenance time by giving vessel owners access to a pool of immediately available, refurbished thrusters.
The first of the new models feature propeller diameters of 1,650 mm and 1,850 mm, and power ratings up to 1,250 kW.
