Chart Navigation & Plotting · Distance — Radar Range and Bearing
A reliable fix can be obtained from a single radar-conspicuous object by combining:
- ATwo bearings of the object
- BThe radar range (an arc) and the bearing of the object✓ Correct
- CThe object's height only
- DTwo ranges at the same time
Explanation
Radar range is generally more accurate than radar bearing. A range arc crossed with a (preferably visual) bearing of the same object yields a fix; multiple radar ranges to separate objects give an even stronger fix.
Authority: Bowditch (Pub. No. 9); radar navigation
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