Accession Number : AD0476158

Title :   AN EXPERIMENTAL INVESTIGATION OF DEVICES FOR REDUCING THE HYDRODYNAMIC RESISTANCE OF AMPHIBIOUS VEHICLES.

Descriptive Note : Final rept. 1 Aug 64-31 Jul 65,

Corporate Author : HYDRONAUTICS INC LAUREL MD

Personal Author(s) : Contractor, Dinshaw N. ; Love, Richard H.

Report Date : OCT 1965

Pagination or Media Count : 38

Abstract : 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)

Descriptors :   (*AMPHIBIOUS VEHICLES, DRAG), HYDRODYNAMICS, MODEL TESTS, TEST FACILITIES, WATER WAVES, TEST METHODS.

Subject Categories : Surface Effect Vehicles & Amphibious Vehicles
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE