Accession Number:

AD0654900

Title:

GENERAL RESISTANCE TEST OF A STEPPED PLANING HULL WITH APPLICATION TO A HYDROFOIL CONFIGURATION.

Descriptive Note:

Research and development rept.,

Corporate Author:

NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER WASHINGTON D C HYDROMECHANICS LAB

Personal Author(s):

Report Date:

1967-05-01

Pagination or Media Count:

45.0

Abstract:

General resistance tests of TMB Model 4776, a transverse stepped planing hull, were conducted. The hull is the third model tested to determine suitability for use as a hydrofoil hull. Resistance, trimming moment, and wetted lengths were measured for several load, trim, and speed conditions. All data are presented in nondimensional form for use in comparing hull forms. The tests indicated that the model at high speed coefficients has low moment and resistance characteristics which would be advantageous to a hydrofoil configuration. Although instabilities due to spray and inadequate step ventilation were found, the trim conditions at which these instabilities occur can be avoided during the normal takeoff operation. Author

Subject Categories:

  • Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE