To the Edge of the Possible: U.S. High Speed Destroyers, 1919-1942 Part 2: Secondary Hull Form Parameters

摘要

Between the two world wars high speed destroyers routinely logged top speeds of 35 to 40 knots on sea trials. In order for such a fast destroyer to be successful, all the hull form parameters had to be optimized for straight line performance (often, at a sacrifice of other desirable characteristics of a warship). In this paper the optimization process for certain "secondary" hull form parameters, the prismatic and midsection coefficients, is described using speed-power calculations for sample ships based on USS Fletcher (DD 445), a late example of the high speed destroyer. The behavior of transom shape is also discussed using worm curves from model tests of U.S. Navy destroyers of the period.