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  3. s a single screw ship has a fivebladed propeller of...

Question: s a single screw ship has a fivebladed propeller of...

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S. A single screw ship has a five-bladed propeller of 6.0 m diameter (D) and 0.75 expanded blade area ratio (AE/Ao) with the propeller axis d,-5.0 m below the waterline. The effective power of the ship can be approximated by F, 0.46% 5 with PE in kW and the ship speed VK in knots. The thrust deduction fraction t-026. Estimate the ship speed at which the propeller will begin to cavitate. Use Keller criterion. Good luck, Dr. Ömer Gören and Dr. Ali Can Takinacı Formulae Sheet 1/3 C, =| 105|-- 0.64 x10 Lw 4 (1:3-0.37ZT+ k = 0 (high speed twin screw ships) k = 0.1 (twin screw ships with moderate speeds) k 0.2 (singlescrew ships) PA= 101 325 Pa, Pv= 1704 Pa, p=1.025 t/m2, g=9.81 m/s2

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