Navigation General · Special Marks & Ranges
You are transiting a range and notice the rear (back) range mark appears to the LEFT of the front mark. You should:
- ASteer left to get back on the range
- BSteer right to get back on the range✓ Correct
- CIncrease speed — the vessel is drifting with the current
- DReduce speed — you are too far into the channel
Explanation
If the rear mark is to the LEFT of the front mark, you have gone too far right of the range centerline. Steer RIGHT (toward the rear mark) to come back on the range line.
Authority: 33 CFR 62 (U.S. ATON System)
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