Simrad HS50 - Manual (Page 11)

INTRODUCTION
20221081 / F
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1.2 About this manual
This manual is intended as a reference guide for operating,
installing and maintaining the HS50 Heading Sensor. Please
take time to read this manual to get thorough understanding of
the operation and system components.
In this manual the following notations are used:
Caution! Used to make the user aware of procedures and operational
practice which, if not followed, may result in degraded
performance or damage to the equipment.
Note! Used to draw the user's attention to special features or behavior
of the equipment.
1.3 Definitions, abbreviations and acronyms
Definitions
Alignment The process of adjusting the current internal navigation frame
(sensor-frame) in the instrument to the true vessel body frame.
Heading The direction of the main axis (bow direction) of the vessel.
This is opposed to course, which is the direction of the vessel
motion.
Yaw A rotation about the vertical axis and is positive when turning
eastward when the vehicle cruises in north direction. Normally
yaw means the dynamic yaw motion.