| 摘要 |
PROBLEM TO BE SOLVED: To provide a marine propeller capable of enhancing the propulsion efficiency and reducing the load on a main engine. SOLUTION: The marine propeller comprises a boss part 2 to which the rotational driving force is transmitted from a main engine, and a plurality of propeller blades 3 which extend outwardly in the radial direction around the axis of rotation from the boss part 2 and are arranged at an equal spacing in the circumferential direction. The trailing edge side skew angleθ<SB>ST</SB>of the propeller blades 3 is larger than the leading edge side skew angleθ<SB>SL</SB>, and the pitch angle at the propeller blades 3 is changed based on the load on the propeller blades 3. COPYRIGHT: (C)2009,JPO&INPIT
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