COLREG - Rule 7 - Risk of Collision Explained

How do you decide whether risk of collision exists — and what if you are not sure? COLREGs Rule 7 explained clause by clause: all available means, radar scanning and plotting, scanty information, and the compass bearing test, shown with true-to-scale animation from the bridge, on the radar and from above. Every give-way and stand-on rule applies only once risk of collision exists, so Rule 7 comes first. In this video we go through the International Regulations for Preventing Collisions at Sea (COLREGs / IRPCS) Rule 7 paragraph by paragraph: (a) using all available means — eyes, binoculars, compass bearings, radar, AIS and sound signals — and treating any doubt as risk; (b) proper use of radar, long-range scanning for early warning and radar plotting / ARPA; (c) why assumptions must not be made on scanty information; (d)(i) steady compass bearing with decreasing range, and why a relative bearing is not enough; (d)(ii) when risk exists even with an appreciable bearing change — very large vessels, tugs and tows, and close range. ⚠️ For general information and entertainment purposes only — not a substitute for the official COLREG text, approved training or professional advice. #COLREGs #Rule7 #Seamanship