Accession Number:

ADA083558

Title:

The Development and Evaluation of a Rudder Roll Stabilization System for the WHEC Hamilton Class.

Descriptive Note:

Final rept. 1975-1980,

Corporate Author:

DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD SHIP PERFORMANCE DEPT

Personal Author(s):

Report Date:

1980-03-01

Pagination or Media Count:

73.0

Abstract:

A major thrust of recent research and development effort in surface ship dynamics has been in the area of shipaircraft interfacing. This is due to the increased importance of helicopters and verticalshort takeoff and landing aircraft as the major combatant capability of nonaviation naval ships. One ongoing effort in the shipair interface area is the joint U.S. NavyCoast Guard Rudder Roll Stabilization Program. This program has been directed at using a ships existing rudders to control roll in a seaway. This report summarizes the steps taken to develop a rudder roll stabilization system for Coast Guard cutters of teh HAMILTON Class, including a chronology of the problem encountered and the steps taken to overcome these problems. The performance features of this system for a wide range of operating conditions are documented, and critical design features and system limitations and benefits are identified. Preliminary results from the operational evaluation of two preproduction prototype systems indicate that the system, as designed, is very effective for short duty cycle utilization, such as in typical helicopter and verticalshort takeoff and landing aircraft opeations. The system is also very effective at reducing roll over long periods of time, so as to increase habitability.

Subject Categories:

  • Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE