6/3/2023 0 Comments Arctis tor meaningThe first diesel-electric icebreaker was the Swedish IB Ymer in 1933. The economy and torque capability of steam engines was improved much with the introduction of diesel-electric machinery (diesel main engine with generators and electrical propulsion motors). Machinery of icebreakers has experienced many changes since the early icebreakers with steam engines and fixed pitch propellers. The reason for the change was partly to increase the height of the bridge to improve the visibility and partly to avoid the noise and vibration caused by ice in the crew accommodation. no accommodation was placed in the hull, Fig. The largest change in the arrangement took place in 1970’s when the superstructure was changed into deck house i.e. The general arrangement of icebreakers and also ice going ships has changed little during the years. Since the early times the icebreakers and ice breaking ships have developed much based on several technological innovations, some of which are mentioned below. Norilsk and Norilsk Nikel-series) and to Finnish owners (Lunni-series) – the Canadian ships MV Arctic and MV Umiak 1 should be mentioned also. Several series of Arctic ships has been built to Soviet and Russian owners (e.g. These ships had an icebreaking bow shape and a high strength for Arctic trade. Ships that were intended to sail independently in ice evolved in 1950’s in the Soviet Union with the emergence of the Lena- and Amguema-series of ships (the latter is also called Kapitan Gotskij series).
0 Comments
Leave a Reply. |