16.1 Definitions
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - International Codes - HSC 2000 Code - International Code of Safety for High-Speed Craft, 2000 – Resolution MSC.97(73) - Chapter 16 - Stabilization systems - 16.1 Definitions

16.1 Definitions

  16.1.1 Stabilization control system is a system intended to stabilize the main parameters of the craft's attitude: heel, trim, course and height and control the craft's motions: roll, pitch, yaw and heave. This term excludes devices not associated with the safe operation of the craft, e.g. motion-reduction or ride-control systems.

The main elements of a stabilization control system may include the following:

  • .1 devices such as rudders, foils, flaps, skirts, fans, water jets, tilting and steerable propellers, pumps for moving fluids;

  • .2 power drives, actuating stabilization devices; and

  • .3 stabilization equipment for accumulating and processing data for making decisions and giving commands such as sensors, logic processors and automatic safety control.

  16.1.2 Self-stabilization of the craft is stabilization ensured solely by the craft's inherent characteristics.

  16.1.3 Forced stabilization of the craft is stabilization achieved by:

  • .1 an automatic control system; or

  • .2 a manually assisted control system; or

  • .3 a combined system incorporating elements of both automatic and manually assisted control systems.

  16.1.4 Augmented stabilization is a combination of self-stabilization and forced stabilization.

  16.1.5 Stabilization device means a device as enumerated in 16.1.1.1 with the aid of which forces for controlling the craft's position are generated.

  16.1.6 Automatic safety control is a logic unit for processing data and making decisions to put the craft into the displacement or other safe mode if a condition impairing safety arises.


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