Ships and marine technology — Heading control systems

This document specifies the minimum operational, functional and performance requirements, as well as methods of testing and the corresponding required test results, for heading control systems installed on board ships conforming to performance standards adopted by IMO Resolution MSC.64(67), Annex 3. In addition, it takes into account parts of IMO resolution A.694(17) to which IEC 60945 is associated. Also it takes into account IMO resolution MSC.302(87) on bridge alert management (BAM). In this document, the ship models of simulators used for performance testing are based on those from ships with a combined system of propeller propulsion and conventional rudder, with a speed range of up to 30 knots. The test results are considered also to be valid for ships with multiple parallel operated rudders. NOTE The text in this document that is identical to that in IMO Resolution A.342(IX), as amended by IMO Resolution MSC.64(67) Annex 3, and IMO Resolution A.694(17), is printed in italics.

Navires et technologie maritime — Systèmes de contrôle du cap

General Information

Publication Date
Current Stage
9093 - International Standard confirmed
Completion Date
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ISO 11674:2019 - Ships and marine technology -- Heading control systems
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Standards Content (Sample)

Third edition
Ships and marine technology —
Heading control systems
Navires et technologie maritime — Systèmes de contrôle du cap
Reference number
ISO 11674:2019(E)
ISO 2019

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ISO 11674:2019(E)

© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
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Phone: +41 22 749 01 11
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ii © ISO 2019 – All rights reserved

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ISO 11674:2019(E)

Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 2
3.1 Terms and definitions . 2
3.2 Abbreviated terms . 4
4 Requirements . 5
4.1 General . 5
4.2 Operational requirements . 7
4.2.1 Change-over from automatic to manual steering and vice versa. 7
4.2.2 Operational controls including adjustment controls. 7
4.2.3 Manual change-over from track control to heading control . 8
4.3 Functional requirements . 8
4.3.1 Rudder angle limitation . 8
4.3.2 Heading monitor . 8
4.3.3 Interfaces . 8
4.3.4 Alert management . 9
4.3.5 Mandatory displayed information .11
4.4 Control performance requirements .11
4.4.1 General.11
4.4.2 Heading keeping function under wave disturbance.12
4.4.3 Heading changing function .

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