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GERMAN PROPULSION UNITS CHOSEN FOR CHINESE PROJECT

GERMAN PROPULSION UNITS CHOSEN FOR CHINESE PROJECT

Monday, June 7, 2021 

Schottel says it has supplied the main and auxiliary propulsion units for China’s first ice-breaking beacon vessel, the recently-launched 'Haixun 156', which will perform a range of tasks for the Tianjin Maritime Safety Administration (MSA).

Haixun 156 is being built by the Wuchang Shipbuilding Industry Group, Hubei Province, China, and is scheduled to enter operation in September 2021.

The main propulsion of the beacon vessel consists of a pair of diesel-driven 1800kW Schottel SRE 460 EcoPellers with four-bladed propeller of 2.4m diameter. To enhance manoeuvrability and provide DP capabilities, the vessel is equipped with a 500kW Schottel STT 1 Transverse Thruster. With this thruster configuration, it reaches a free sailing speed of 14.5 knots.

The azimuth thrusters are ice-strengthened according to Chinese ice class CCS 2 (corresponding to Finnish-Swedish ice class 1B). This enables the vessel to break through ice as thick as 0.6m, guaranteeing emergency responses in North China's waters even under extreme weather conditions. Especially when operating in ice, maximum manoeuvrability is of particular importance.

Due to the combination of propeller thrust and course-stabilising fin, Schottel claims that the EcoPeller fulfils all the requirements of a modern high-performance propulsion unit. The hydrodynamically optimised design allows the EcoPeller to generate maximum steering forces and enables top values in terms of overall efficiency and course stability. This reduces fuel consumption and ensures both lower operating costs and emissions.

With a length of 74.9m and a width of 14.3m, the vessel has a displacement of 2,400t. Haixun 156 will be deployed for setting up, removing, swapping and maintaining navigation aid facilities at ports and on navigation routes in North China. The Tianjin Port's aids to navigation (AtoN) system is fairly dense, and growing rapidly. The MSA Beihai Navigational Security Center's Tianjin AtoN system is responsible for the maintenance of all navaids within the Tianjin area.

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