Service vessel operating method

Details Service vessel operating method Service vessel operating method

B - Operations, Transporting

63

H

B63H 5/16 (2006.01) B63B 35/08 (2006.01) B63H 3/00 (2006.01) B63H 5/14 (2006.01) B63H 5/15 (2006.01) B63H 23/24 (2006.01)

Patent

CA 2244056

The invention relates to a service vessel operating method, which vessel (13) is designed for running in open sea and ice. For an ice-free navigation period a propeller nozzle (4) is mounted around a propulsion propeller means (1) of the vessel, when again for a navigation period in ice conditions the propeller nozzle is removed. The power absorption of the propulsion propeller means is maintained constant during nozzle and nozzle-free operation.

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