Propeller Light Running Margin
Автор: Everllence
Загружено: 2015-05-12
Просмотров: 18515
Описание:
The light running margin (LRM) is an important design parameter for the safe and efficient operation of a ship. In this video, Kim R Hansen of MAN Diesel & Turbo, Low Speed Engineering, in Copenhagen gives a short and basic explanation of why it is important to ensure that a ship is designed with a sufficient light running margin.
Our recently issued Market Update Note of 24 April 2015 (click the link below) describes the changed circumstances in the shipping industry that have led MAN Diesel & Turbo to change the recommendation for LRM. In brief, a ship should have a sufficient LRM such that:
• a safe and satisfactory ship speed can be maintained in heavy weather and/or with a fouled hull
• ship accelerations needed for safe and efficient manoeuvring operations can be achieved
• a barred speed range can be passed quickly (which is often required also at zero ship speed, i.e. at bollard pull).
See the mentioned Market Update Note:
http://marine.man.eu/docs/librariespr...
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