A study is made of the dynamic stresses due to water impact forces on the bow sections of offshore racing sailing yachts going to windward using an unsteady model of a pressure loading travelling across a beam. Results show a decided reduction compared to the static loading solution where the load travel rate is rapid and for large unsupported spans. The latter is compared to recent proposed changes in the American Bureau of Shipping (A.B.S.) Scantling Rules and some qualitative agreement is found. Recommendations for future investigations are made.

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