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Power-driven vessel under 12 m, alternative display

Technical visualPower-driven vessel under 12 m alternative
Power-driven vessel under 12 m alternativeA power-driven vessel under 12 m using the alternative display shows an all-round white light and sidelights.all-round whiteport sidelightstarboard sidelight
Power-driven vessel under 12 m alternativeA power-driven vessel under 12 m using the alternative display shows an all-round white light and sidelights.1231all-round white2port sidelight3starboard sidelight

Power-driven vessel underway · under 12 m alternative

Rule 23 small-vessel alternative; recognize sidelights with the all-round white light.

Lights

all-round white

sidelights

Means

Small power-driven vessel underway using the Rule 23 small-vessel alternative.

Nuance

Do not mistake the all-round white for an anchor light when sidelights and motion make the underway condition apparent.

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