BOTH INTERNATIONAL & INLAND Your 18-meter...

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Question 1 of 2066636eeb28f7522a1c51b9f4

BOTH INTERNATIONAL & INLAND Your 18-meter vessel is under sail at night displaying sidelights, stern light, and a red light over a green light at the masthead. If you start the auxiliary engine and engage the propeller, which action must you take?

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Question 1 of 20

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🔍 Key Concepts

• Sailing vessel vs. power-driven vessel status when the engine is engaged • Required navigation lights for sailing vessels vs. power-driven vessels at night • Meaning of the red over green masthead lights

💭 Think About

• When a sailboat turns on and uses its engine, how is it classified under the Navigation Rules: sailing vessel or power-driven vessel? • What lights identify a vessel "under sail only" at night, and what must change when the vessel is now considered power-driven? • Look at what the red-over-green combination means. Should that indication remain once the vessel is no longer under sail alone?

✅ Before You Answer

• Verify what red over green specifically indicates in the Navigation Rules for a sailing vessel at night. • Check the required configuration for a power-driven vessel under 50 meters at night (masthead, sidelights, stern light). • Confirm whether a vessel may continue to show sailing lights when it is actually being propelled by machinery.

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