Lights Lesson 2: Sailing Vessels and Small Craft
Lights Lesson 2: Sailing Vessels and Small Craft
Rules 25 and 23
Distinguish sailing vessels from power-driven and small-vessel alternatives.
Core lesson
A sailing vessel underway shows sidelights and a sternlight. A vessel under 20 m may combine them in one lantern at or near the masthead. It may additionally show red over green all-round lights, but not with the combined lantern. A sailing vessel also using machinery is power-driven and displays a cone apex down by day.
Scenario: A yacht shows red over green plus separate sidelights and sternlight. What is it?
Show the recommended decision
A sailing vessel underway using the optional additional lights.
Rule link: Rule 25(c).
Source: USCG Navigation Rules.
Educational material only. It does not replace the current official rules, notices, local regulations, proper training or prudent seamanship.