Accession Number:

AD0777733

Title:

Seakeeping Characteristics of Four Members of Hydrofoil Hull Series 65.

Descriptive Note:

Final rept.,

Corporate Author:

STEVENS INST OF TECH HOBOKEN N J DAVIDSON LAB

Personal Author(s):

Report Date:

1973-04-01

Pagination or Media Count:

58.0

Abstract:

A systematic study of the effects of hull-hydrofoil arrangement, hull length-beam ratio, sea state, loading, speed, longitudinal center of gravity location and simulated hydrofoil damping was made on the rough-water performance of a series of hull forms suitable for hydrofoil craft operation. Measurements of resistance, heave and pitch motions, and impact accelerations at two locations serve as a basis for comparison. From the particular range of parameters investigated it appears that hulls appropriate to an airplane hydrofoil arrangement have better seakeeping characteristics than those intended for a canard layout added resistance is shown to be a linear function of load, sea-state and speed impatt loads increase with length-beam and the square of the speed and decrease with hull loading motions are reduced at high length-beam ratio and are insensitive to load the response of hydrofoil hulls is confirmed to be non-linear. Author

Subject Categories:

  • Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE