Accession Number : ADD017985

Title :   Canted Rudder System for Pitch Roll and Steering Control.

Descriptive Note : Patent, Filed 20 Jun 95, patented 6 Feb 96,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Ferreiro, Larrie D ; Smith, Timothy C ; Thomas, William L , III

Report Date : 06 Feb 1996

Pagination or Media Count : 14

Abstract : The invention is directed to a system for stabilizing a marine vehicle against rolling and pitching motions and for providing steering control to the marine vehicle. The system includes at least two rudders rotably affixed to the marine vehicle aft of marine vehicle propellers and canted approximately 450 to the vertical; at least two rudder actuators, one actuator associated with each of the rudders, for providing a predetermined dynamic rotational motion to each rudder; at least one power unit for providing power to the rudder actuators; and a control unit for determining the predetermined dynamic rotation of each of the rudders and for generating control signals corresponding thereto. The control signals are provided to the at least one power unit for regulating the power provided io the actuator units wherein the control unit independently controls the movement of each of the rudders such that the rudders cooperate to provide steering control to the marine vehicle and to stabilize the marine vehicle against rolling and pitching motions.

Descriptors :   *MARINE RUDDERS, *PATENTS, *STABILIZATION SYSTEMS, STEERING, ROLL, CONTROL SYSTEMS, PITCH(MOTION), DYNAMICS, MINEFIELDS, MOTION, SIGNALS, POWER, ACTUATORS, VEHICLES, ROTATION, MARINE PROPELLERS

Subject Categories : Marine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE