Regulation 25
Wheelhouse Control of Propulsion Machinery
of Merchant Shipping (Non-Convention Ships) Safety Regulations
This regulation applies only to new ships, except for paragraph (2)( e ) which also applies to existing ships. (2) Where remote control of propulsion machinery is provided from the wheelhouse, the following shall apply: ( a ) under all operating conditions, including manoeuvring, the speed, direction of thrust and, if applicable, the pitch of the propeller shall be fully controllable from the wheelhouse; ( b ) the main propulsion machinery shall be provided with an emergency stopping device in the wheelhouse and be independent from the wheelhouse control system referred to in sub-paragraph ( a ); ( c ) control of the propulsion machinery shall be possible only from one station at a time; ( d ) indicators shall be fitted in the wheelhouse for —
propeller speed and direction in the case of fixed propellers; and (ii) propeller speed and pitch position in the case of controllable pitch propellers; ( e ) it shall be possible to control the propulsion machinery locally, even in the case of failure in any part of the remote control system; ( f ) unless the Certifying Authority considers it impracticable, the design of the remote control system shall be such that if it fails an alarm will be given until local control is in operation; and ( g ) an alarm shall be provided to indicate low starting air pressure and shall be set at a level which will still permit main engine starting operations. (3) Where the main propulsion and associated machinery including sources of main electrical supply are provided with various degrees of automatic or remote control and are under continuous manned supervision from a control room, the control room shall be so designed, equipped and installed that the machinery operation will be as safe and effective as if it were under direct supervision. (4) In general, automatic starting, operational and control systems shall include means for manually overriding the automatic means, even in the case of failure of any part of the automatic and remote control system.