Concave camber can increase lift and Lift to Drag of a planing hull. The impact of camber and its limitations for a planing hull are reviewed, including model tests. The adverse impacts of low trims and excessive camber are discussed. A practical planing hull with significant concave camber must have convexity, at least forward to accommodate the bow. This hull type is generically referred to as a Wiggle Hull and recent investigations to develop such a hull are presented. The prediction method developed for this investigation is described.

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