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The influence of the propeller emergence on the torque during sailing of a ship on a regular wave

Szelangiewicz T., Żelazny K.

Zeszyty Naukowe / Akademia Morska w Szczecinie

2013

nr 35 (107)

138--143

While the ship is sailing on waves the relative motions occur which result in propeller emergence, and as a consequence – propeller thrust reduction which results in a decrease in the ship’s speed. Propeller emergence is also accompanied by the decrease in torque values, with which the propeller affects the propelling engine. The article presents both calculation results and the algorithm for calculating the decrease in torque of the propeller during ship motion on a regular wave.