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First, read the number displayed when looking in
the direction of the bow, then the number when
looking in the direction of the object; this gives the
direction of travel in relation to the object.
(Keep the binoculars horizontal and adjust the ob-
ject to the vertical scale).
Example:
When looking in direction of bow: 210°
When looking at buoy: 240°
Direction of travel: 30° in relation to the buoy
Note: The binoculars may fail to measure the heading correctly while tilted.
Calculating Object Direction
ENGLISH
240°
210°
30°
210
EN-10
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