The Delft systematic Yacht Hull Series (series I) has been extended with six hull forms which cover a range of medium to very light displacements. Upright and heeled resistance, as well as side force and stability have been measured for a large range of forward speeds.

Polynomial expressions for the upright resistance, based on the combined Series I and II, are given for Froude numbers up to Fn = 0.60.

The measured side force and induced resistance are analysed, and velocity predictions using Series I and II results are discussed.

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