A Simplified Method for Calculating Propeller Thrust Decrease for a Ship Sailing on a Given Shipping Lane
Jul 26, 2014
About this article
Published Online: Jul 26, 2014
Page range: 27 - 33
DOI: https://doi.org/10.2478/pomr-2014-0015
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© 2014
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
During ship sailing on rough water, relative ship motions can be observed which make the propeller emerge from the water, and decrease its thrust as a consequence. The article presents a simplified method for calculating the thrust decrease and the time of propeller emergence from water for the ship on a regular an irregular wave. The method can be used for predicting the operating speed of the ship on a given shipping lane.