MODEL TESTS OF A SERIES OF SIX PATROL BOATS IN SMOOTH AND ROUGH WATER
STEVENS INST OF TECH HOBOKEN NJ DAVIDSON LAB
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Three round-bottom models and three hard-chine models, with lengthbeam ratios of 3, 4 and 5 in each group and with constant displacement, were tested in smooth water and in irregular waves of Sea States 3 and 5. The hard-chine model and the round-model of length-beam ratio 4 were used to evaluate relative broaching tendencies in regular following waves. The resistance data in smooth and rough water were expanded to boat weights of 55, 000 pounds. The measured values of accelerations, at the forward quarter point and LCG position, and of heave, are presented. In the evaluation of relative broaching tendencies in regular following waves, experimental results were combined with theoretical results to derive indices of broaching.
- Marine Engineering
- Test Facilities, Equipment and Methods