International Regulations for Preventing Collisions at Sea (COLREGS)
RULE TEXT
A vessel of 12 metres or more in length shall be provided with a whistle. A vessel of 20 metres or more in length shall be provided with a whistle and a bell. A vessel of 100 metres or more in length shall, in addition, be provided with a gong.
PRACTICE SCENARIOS (1 available)
RULE 33 — DISTRESS
A nearby vessel fires orange smoke AND displays a square flag above a ball shape. What should ownship do?
Radar PPI — vessel plotting
TEST YOURSELF ON Rule 33
1 interactive scenario — radar PPI and bridge visual modes. 20-second timer per question.