2.1 Two independent steering gear control systems
should be provided and should be so arranged that a mechanical or
electrical failure in one of them will not render the other one inoperative.
2.2 The term "steering gear control system" as
defined in SOLAS chapter II-1, part
A, regulation 3.1, should be understood as "steering control
system" covering "the equipment required to control the steering gear
power actuating system".