Download or read book An Experimental Investigation of Devices for Reducing the Hydrodynamic Resistance of Amphibious Vehicles written by D. N. Contractor and published by . This book was released on 1965 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tests were run on a model of a typical amphibious vehicle in order to determine bow configurations which would result in lower vehicle resistance. Tests were run with both fixed and towed models. The Froude number was varied and the resistance and trim angle, if any, were measured. Five bow plans and four bow profiles were chosen and eight bows were built and tested in a fixed position. Four of these bows were representative of the bows of present prototype craft and the other four were not. The latter bows all had less resistance than the best typical bow at a Froude number of 0.55. Towing tests of these two bows corroborated the results of the fixed model tests. (Author).