Kongsberg Maritime is introducing a new tunnel thruster known as the type TTH ‘Harmonised’ series, designed to set new standards in performance and reliability with a compact, modular design that allows for flexible installation and optimal integration into a range of vessel types.
Anton Westerlund, VP Product Management, Thruster Systems, said: “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.”
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 TTH has been increased. This allows for easier installation and reduces paint erosion in the propeller path. It further reduces noise and vibration levels. The new TTH series meets the requirements of dynamic positioning (DP) and auxiliary propulsion applications.
The TTH series supports both CP and 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 are intended to enhance onboard comfort and maintainability.
TTH units will be part of Kongsberg Maritime’s thruster support pool, which cuts thruster maintenance time by giving vessel owners access to a pool of immediately available, refurbished thrusters. The first models in the new TTH series feature propeller diameters of 1650mm and 1850mm, and power ratings up to 1250kW.
Image: Kongsberg TTH thruster (source: Kongsberg Maritime)
