Accession Number : AD0512843

Title :   Performance of High-Speed Naval Ships, Part II. Results of Resistance Tests in Smooth Water on Nine Hull Forms (LCB/LCF Effect).

Descriptive Note : Research and development rept.,

Corporate Author : NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER WASHINGTON D C

Personal Author(s) : Lasky,Marc P.

Report Date : NOV 1970

Pagination or Media Count : 34

Abstract : The effect of changing the relative locations of the longitudinal center of buoyancy (LCB) and the longitudinal center of flotation (LCF) on the resistance characteristics of high-speed naval ships was investigated. The results indicate that there was no direct relationship between the resistance and any one hull parameter except that of wetted surface. It was also found that at speed-length ratios greater than 1, the resistance characteristics of hulls with a transom and/or bulbous bow of moderate size (5-10 percent) had overall superiority over hull forms that did not have these features. (Author)

Descriptors :   (*SHIPS, PERFORMANCE(ENGINEERING)), (*SHIP HULLS, DRAG), HYDRODYNAMIC CONFIGURATIONS, SKIN FRICTION, SHIP MODELS, VELOCITY, SEA WATER (U) BUOYANCY, FLOATING BODIES, POWER, WETTING, SURFACE PROPERTIES

Subject Categories : Marine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE