A vessel engaged on pilotage duty in restricted visibility; underway.
A vessel constrained by draught.
Aground; indicate distress and need of assistance.
A vessel not under command.
A power-driven vessel underway, but stopped and making no way through the water in restricted visibility.
Power-driven vessel; 50 metres or more; ahead; or tug & tow; less than 50 metres; astern < 200 m in length; ahead.
Trawler; less than 50 metres; nets fast upon on obstruction; ahead.
A vessel restricted in her ability to manoeuvre.
A vessel engaged in mine clearance; dangerous to aprouch within 1000 metres.
Power-driven vessel; less than 50 metres; starboard side.
Two vessels: left - "I am operating astern propulsion"; right - tug & tow; less than 50 metres; astern < 200 metres in length.
Two vessels: left - not under command; right - an air-cushion vessel; port side; shall keep out of the way.
A vessel at anchor in restricted visibility; less than 100 metres.
Two vessels: left - power-driven vessel; shall keep out of the way; right - any type of fishing vessel.
Sailing vessel under oars; underway. Vessel or object being towed; port side view.
A power-driven vessel making way; in restricted visibility.
Tug & tow; astern > 200 metres in length.
Vessel engaged in dredging or underwater operations; 50 metres or more; restricted in her ability to manoeuvre; starboard side on which may pass.
Vessel engaged in mine clearance; less than 50 metres; starboard side; dangerous to approach within 1000 metres.