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Engineering · Mechanical Engineering
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1- A propeller of 3.0m diameter and 0.8 pitch ratio absorbs its maximum delivered power when running at 180rpm at a speed of advance of 13.5 knots. If the propeller torque remains constant, determine the propeller rpm, thrust and delivered power at speeds of advance of 0, 2.5, 5.0, 7.5 and 10.0knots, using the data of Table 4.3 Hint: Use excel sheets for Propeller in Open Water part of lecture notes. 8 8 2 2 7 1 1 1 4 0.0297 -0.0725 0.0792 0.1361 0.1287 0.2112 0 0.4250 0.5994 0.4644 0.7133 0.5022 0.8374 0.5384 0.9717 0.5730 1.1161 0.3 0.3365 0.4971 0.3799 0.6048 0.4231 0.7231 0.4959 0.8520 0.5086 0.9915 0.4 0.3013 0.4540 0.3461 0.5594 0.3910 0.6757 0.4358 0.8026 0.4805 0.9403 7 2 0.9 0.0818 0.1708 0.1348 0.2632 0.1874 0.3675 0.2396 0.4839 0.2913 0.6122 1.0 0.0292 0.1007 0.0841 0.1900 0.1381 0.2917 0.1913 0.4058 0.2437 0.5322 0.0305 0.1123 0.0859 0.2113 0.1400 0.3229 0.1928 0.4474 . 0.0308 0.1261 0.0857 0.2353 0.1386 0.3577 5

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