Accession Number : AD0657948

Title :   CAVITATION AND VENTILATION OF A RUDDER ON A TWENTY-FOOT MODEL OF A DESTROYER.

Descriptive Note : Final rept.,

Corporate Author : LOCKHEED MISSILES AND SPACE CO SUNNYVALE CALIF

Personal Author(s) : Lacy,Richard

Report Date : 15 JUN 1967

Pagination or Media Count : 28

Abstract : Eighty tests of the action of a ship rudder were made using a 1/21 scale model of a destroyer. The tests were made in a variable atmosphere towing tank. Motion picture photography was used to observe ventilation and cavitation on the rudder. Some rudder force data were also obtained. These data show a progressive decrease in rudder effectiveness as cavitation number is reduced. (Author)

Descriptors :   (*MARINE RUDDERS, *CAVITATION), (*DESTROYERS, MARINE RUDDERS), MODEL TESTS, SHIP MODELS, MOTION PICTURE PHOTOGRAPHY, PERFORMANCE(ENGINEERING)

Subject Categories : Marine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE