SEAKEEPING STANDARD SERIES FOR CRUISER-STERN SHIPS

The ranges of the principal characteristics of the Series 60 were extended to cover present shipbuilding practices. The seakeeping performance in head seas of 72 hull forms from the Extended Series 60 was evaluated theoretically. The results are presented in tabular form as a function of the principal characteristics of the ship, the Froude number, and the seaway. The Seakeeping Tables include: heaving motion at amidships; pitching motion; moment; added resistance; acceleration at stations 0, 5, 10, 15, and 20; relative motion at stations 1, 2, 3, 4, and 20; and relative velocity at stations 1, 2, 3, 4, and 20. The results of the Seakeeping Tables can be interpolated for the prediction of the seakeeping performance of cruiser- stern ships not necessarily with Series 60 hull forms. Additional seakeeping information for extreme values, wetness, keel emergence, slamming, and propeller racing can be obtained from the results of the Seakeeping Tables.