Bow Thruster · Bow/Stern Thrusters
The Rolls‑Royce/Kongsberg TT Series is an electric tunnel bow thruster that provides high static thrust through a fixed or constant‑pitch propeller housed in a steel tunnel, enabling precise low‑speed manoeuvring.
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What our service work and the manufacturer documentation say about keeping this model running.
Gear oil analysis every 1,000 hrs. Motor insulation test annually. Propeller inspection at drydock. CP hub overhaul every 20,000 hrs.
Kongsberg Maritime (ehem. Rolls-Royce Marine, acquired 2019). Service: Norway, Singapore, Houston, Shanghai. Lead time: 3-6 weeks.
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