INLAND ONLY You are overtaking another power-driven vessel in a narrow channel. The other vessel will have to move to allow you to pass. You wish to overtake the other vessel and leave her on your starboard side. What would be your FIRST whistle signal?

Correct Answer: Option D — two short blasts

33 CFR 83.34(c)(i) dictates that a vessel intending to overtake another on the port side must sound two short blasts. This signal serves as the initial request to the overtaken vessel, initiating the communication process required for a safe passing maneuver in a narrow channel.