Four rudder angle transmitter units-feedback in the steering system for steering control, two mounted on each rudder actuator assembly; each rudder angle transmitter unit (ratu) is wired to is associated steering control unit (scu) in the aft steering stand on its side of the ship; each ratu contains a center-tapped potentiometer with +/-12 vdc excitation provided by its scu; each ratu potentiometer provides rudder angle feedback to its corresponding scu; the rudder angle feedback is 0.25 v/degree, positive voltage for starboard (right) rudder angles and negative voltage for port (left) rudder angles; each ratu is equipped with two adjustable limit switches; one that will open when the rudder exceeds 35.5 degrees to the port and one for 35.5 degrees to the starboard; these limit switches are used to interrupt the hpu proportional valve command between the pump valve electronics and the proportional valve solenoids to protect against a failure in the steering controls
No other part numbers with same form, fit, and function found.
NSN 6130-01-555-8531
NSN 5920-01-182-8745
NSN 6645-00-551-8291
NSN 7035-01-429-7954
NSN 5999-01-360-9458
NSN 5915-01-088-8372
NSN 5998-00-473-1406
NSN 5965-01-010-1258
NSN 5950-01-542-9972
NSN 5920-01-643-8287
NSN 6685-01-655-1447
NSN 6105-01-628-6283
Last Updated: 02/16/2025