Assessing The Risk.3-12 - Furuno 1751 Operator's Manual

3. APPUCATION
Collision Avoidance and Relativa Motion
Assessing the risk
The moment an echo appears on the screen its range and relative bearing should be
measured and its true or magnetic bearing noted. This is best done on a chart or plot.
Collision risk can be assessed only by carefully watching the true or magnetic bearing of an
approaching vessel. If the bearing of the target does not appreciably change a possibility of
collision may exist.
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