Rules of the Road · Maneuvering Signals (Intent vs Action)
A vessel on inland waters signals one short blast to a meeting vessel. The other vessel must respond with:
- ATwo short blasts to reject the proposal
- BOne short blast to agree, or the danger signal to reject✓ Correct
- CThree short blasts to indicate engines are in reverse
- DOne prolonged blast to indicate she is in a narrow channel
Explanation
Under Inland Rule 34(a), maneuvering signals are signals of intent. The vessel receiving the proposal must reply with the same signal to indicate agreement, or sound the danger signal (five or more short blasts) to indicate doubt or danger. No matching signal means no agreement.
Authority: Inland Rule 34(a)
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