[Code of Federal Regulations]
[Title 46, Volume 2]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR62.35-5]

[Page 304-305]
 
                           TITLE 46--SHIPPING
 
   CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
 
PART 62_VITAL SYSTEM AUTOMATION--Table of Contents
 
Subpart 62.35_Requirements for Specific Types of Automated Vital Systems
 
Sec. 62.35-5  Remote propulsion control systems.

    (a) Manual propulsion control. All vessels having remote propulsion 
control from the navigating bridge, an ECC or maneuvering platform, or 
elsewhere must have a manual alternate propulsion control located at the 
equipment.

    Note: Separate local control locations may be provided for each 
independent propeller.

    (b) Centralized propulsion control equipment. Navigating bridge, 
ECC, maneuvering platform, and manual alternate control locations must 
include--
    (1) Control of the speed and direction of thrust for each 
independent propeller controlled;
    (2) A guarded manually actuated safety trip control (which stops the 
propelling machinery) for each independent propeller controlled;
    (3) Shaft speed and thrust direction indicators for each independent 
propeller controlled;
    (4) The means to pass propulsion orders required by Sec. 113.30-5 
and Sec. 113.35-3 of this chapter; and
    (5) The means required by paragraph (d) of this section to achieve 
control location transfer and independence.
    (c) Main navigating bridge propulsion control. (1) Navigating bridge 
remote propulsion control must be performed by a single control device 
for each independent propeller. Control must include automatic 
performance of all associated services, and must not permit rate of 
movement of the control device to overload the propulsion machinery.
    (2) On vessels propelled by steam turbines, the navigation bridge 
primary control system must include safety limit controls for high and 
low boiler water levels and low steam pressure. Actuation of these 
limits must be alarmed on the navigating bridge and at the maneuvering 
platform or ECC.
    (3) On vessels propelled by internal combustion engines, an alarm 
must annunciate on the navigating bridge and at the maneuvering platform 
or ECC, if provided, to indicate starting capability less then 50% of 
that required by Sec. 62.35-35(a). If the primary remote control system 
provides automatic starting, the number of automatic consecutive 
attempts that fail to produce a start must be limited to reserve 50% of 
the required starting capability.
    (d) Control location transfer. Control location transfer must meet 
sections 41.19.3 and 41.19.4 of the American Bureau of Shipping's 
``Rules for Building and Classing Steel Vessels.'' Manual alternate 
propulsion control locations must be capable of overriding and operating 
independent of all remote and automatic control locations.
    (e) Control system details. (1) Each operator control device must 
have a detent at the zero thrust position.
    (2) Propulsion machinery automatic safety trip control operation 
must only occur when continued operation could result in serious damage, 
complete breakdown, or explosion of the equipment. Other than the 
overrides mentioned in Sec. 62.25-10(a)(4) and temporary

[[Page 305]]

overrides located at the main navigating bridge control location, 
overrides of these safety trip controls are prohibited. Operation of 
permitted overrides must be alarmed at the navigating bridge and at the 
maneuvering platform or ECC, as applicable, and must be guarded against 
inadvertent operation.
    (3) Remote propulsion control systems must be failsafe by 
maintaining the preset (as is) speed and direction of thrust until local 
manual or alternate manual control is in operation, or the manual safety 
trip control operates. Failure must activate alarms on the navigating 
bridge and in the machinery spaces.

[CGD 81-030, 53 FR 17838, May 18, 1988; 53 FR 19090, May 26, 1988]