Lights and shapes

At night you only see lights. What vessel is it?

Move around the vessel to see which lights show from each angle. Trains rules 21 to 30.

Related questions

• Sailing in fog, must we show navigation lights?
• The day shape a vessel at anchor must show is:
• Under Rule 24, what is the masthead light difference between a composite unit (pusher rigidly connected) and a vessel towing alongside, both under 50 metres?
• Near the coast by day in good visibility, we see through binoculars a merchant ship with a cylinder hoisted. Under Rule 28 she is:
• Under Rule 21, definitions, the “towing light” is:
• Under Rule 25, if a rowing boat does not show the lights prescribed for sailing vessels, she must have ready for immediate use a torch or lit lantern showing:
• Under Rule 23, what lights must a 15-metre motor boat show under way at night?
• A 21-metre pilot boat transits under her own power to another port for maintenance, partly at night, with no pilotage duty on the way. Under Rule 29 she shows:
• By day in good visibility, our 22-metre boat suffers a steering failure and cannot manoeuvre under her own means. Under Rule 27 we must:
• Under Rule 31, could a WIG craft flying near the sea surface not show exactly the lights of Rule 23 and still comply?
• At night near the coast we see only two red lights above one white light in the same vertical line. Under Rule 30 it is:
• Under Rule 21, definitions, a “flashing light” flashes: