An investigation has been made into the effect of adding wedges or trim tabs to two models of the DTMB Series 62 planing hulls over a range of longitudinal center of gravity positions and displacements to determine the optimum wedge configuration and the range of effectiveness of a wedge. Measurements were also made to confirm that a wedge has an effect on the dynamic lift on the hull and hence that there is a change in resistance other than that resulting from control of the trim angle.
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A. Millward (1976) studied this question.
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