BEHAVIOR OF THREE PLANING BOAT DESIGNS IN CALM AND ROUGH WATER
Abstract
A description is presented of the 1:16 scale model tests of three competitive planing boat designs for a Bureau of Ships 52-ft LCSR, a high-speed landing craft. Two of the three designs are conventional hard-chine planing boat types. The chief difference between the two designs is the shape of the bottom - - one has bottom sections that are convex in shape while the bottom sections of the other are concave in shape. The third design features a high deadrise bottom with rounded sections at the keel. In addition, the bottom was fitted with longitudinal hydrolift strips. All designs were tested for resistance in calm water at various displacements including a standard condition. In addition, one of the two conventional models was tested with an appendage configuration consisting of twin shafts, struts, rudders, and propeller protective skegs. Wave tests in irregular, long-crested tank waves simulating a state 3 sea were conducted with all models at several displacement and trim conditions. Model resistance and accelerations at the bow and the center of gravity were measured over a range of speeds from 20 - 40 knots in head seas.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1963
- Accession Number
- AD0422495
Entities
People
- Paul R. Van Mater Jr.
Organizations
- Stevens Institute of Technology