ISO 16329:2003 pdf download
ISO 16329:2003 pdf download.Ships and marine technology -Heading control systems for high-speed craft.
integral rudder adjustment
adjustment of a component of the total rudder command which is in proportion to the integral value of the heading deviation
3.10
weather adjustment
adjustment which minimizes unnecessary steering motion against yawing caused by waves, swells and wind
3.11
adjustment control
device which changes the characteristics of an automatic steering device, including proportional rudder adjustment, derivative rudder adjustment, integral rudder adjustment and weather adjustment
3.12
operational device
switch, key, knob, etc. which is used for operating a heading control system
3.13
heading-signal processor
unit which processes the heading signal generated by a gyro-compass, magnetic compass, etc., and adapts it before its use by the heading control system
3.14
override function
intentional fast change-over from automatic to temporary manual control
3.15
conning position
place on the bridge with a commanding view providing the necessary information and equipment for the conning officer to carry out his functions
3.16
turn-rate control
method of controlling the rudder of a vessel to perform turns with a preset rate of turn
3.17
turning radius control
method of controlling the rate of turn of a vessel to perform turns with a preset turning radius
4 Performance
4.1 General
4.1.1 The heading control system shall be capable of adapting manually or automatically to different steering characteristics of the craft under various speed, weather and loading conditions, and provide reliable operation under prevailing environment and normal operational conditions.
4.1.2 The heading control system shall be connected to the gyro-compass if a gyro-compass is provided. Othei’wise it shall be electronically connected to the magnetic compass.
4.1.3 A qualitative description of the effects of the heading control system errors due to high speed, accelerations, heading changes, sea state, etc., and a qualitative description of corresponding errors in other navigation system, shall be provided to the user. This information shall be provided by the manufacturer.
4.1.4 Heading control systems shall conform to the environmental requirements of IEC 60945 for equipment categories protected from the weather.
A heading control system shall be composed, as a minimum, of the following components (see Figure 1):
a) heading-signal processor (including an indicator of the heading);
b) operational control for preset heading;
c) operational controls for adjustments;
d) automatic steering devices;
e) change-over device (with steering-mode indicator) which is not required to be an integrated part of the heading control system;
f) alarm signalling facilities compliant with the requirements of this International Standard;
g) indicators for steering mode and heading source in use.
4.3 Functional requirements
4.3.1 Introduction
The following requirements shall be fulfilled.
4.3.2 Change-over from automatic to manual steering and vice versa
4.3.2.1 Change-over from automatic to manual steering and vice-versa shall be possible at any position of the rudder and shall be activated by one manual control within 3 seconds.
4.3.2.2 Change-over from automatic to manual steering shall be possible under any conditions, including any failure in the heading control system.
4.3.2.3 When changing-over from manual to automatic steering, the heading control system (automatic pilot) shall take over the actual heading as the preset heading.
4.3.2.4 Change-over from manual steering with override function to automatic steering shall not be possible without an intended action of the craft’s personnel.
4.3.2.5 Change-over devices shall be located close to each other in the immediate vicinity of the position at which the equipment is normally operated.
4.3.2.6 Adequate indication shall be provided to show which method of steering is in operation at a particular moment. This indicator shall be fitted near the change-over devices.
4.3.2.7 The installation shall include manual steering with an override function.
4.3.3 Operational controls including adjustment controls
4.3.3.1 All operational controls shall permit normal adjustments to be easily performed and shall be easy to identify from the position at which the equipment is normally operated. Controls not required for normal operation shall not be readily accessible.
4.3.3.2 The heading control system shall be provided with automatic and manually operated controls for operational use to adjust the system to the craft’s steering performance to take account of the effects of changing weather. The heading control systems may be provided with automatic or manually operated controls for operational use to adjust the system to the craft’s steering performance to take account of changing speed and loading conditions.
