1965•Journal of Fluid MechanicsRequires access

The wave drag of a Hovercraft

M. J. Barratt

Abstract

The wave drag of a Hovercraft is calculated as the horizontal force associated with a pressure distribution moving over the free water surface. A general formula is derived for the wave drag due to any pressure distribution moving over water of finite depth. This is then applied to rectangular and elliptical planform Hovercraft, and results are presented for a range of Froude numbers and water depths.

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Key concepts: Froude number, Drag, Wave drag, Mechanics, Parasitic drag, Physics, Aerodynamic drag, Range (aeronautics)