Flags - Maritime

Or C - Charlie. With three numerals, course in degrees magnetic.

Or P - Papa. The Blue Peter.

Or "I have a diver down; keep clear at slow speed"

Or "I am taking, or discharging, or carrying dangerous goods"

Or "Affirmative". With three numerals, course in degrees magnetic.

Or "Keep clear of me; I am maneuvering with difficulty". With two, four or six numerals, the date

When stationary: "I have a diver down; keep clear at slow speed" or "I am undergoing a speed trial" or A - alpha

Or "I am altering my course to starboard"

Or "I am disabled; communicate with me"

Or "I require a pilot"

Or "I have a pilot on board"

Or I - India

Or E - Echo

Or F - Foxtrot

Or B - Bravo

Or H - Hotel

Or "I am altering my course to port"

Not distress. Or V - Victor. With one or more numerals, the speed in kilometres per hour.

Or W - Whiskey

Or G - Golf

Or "I am leaking dangerous cargo"

Or D - Delta or With two, four or six numerals, the date

Or "I wish to communicate with you"

Or In harbor: "The ship is under Quarantine". With four numerals, the latitude.

Or "My vessel is stopped and making no way through the water"

Or O - Oscar

Or S - Sierra. With one or more numerals, speed in knots.

Or Q - Quebec

Or N - November

Or "Negative"

Or "Man overboard"

Or "All persons should report on board as the vessel is about to proceed to sea"

Or "My vessel is 'healthy' and I request free pratique"

Or "The way is off my ship". With one or more numerals, the distance in nautical miles.

Or "I am operating astern propulsion". With one or more numerals, speed in knots.

Or X - X-ray

Or "Keep clear of me; I am engaged in pair trawling". With four numbers, the local time.

Or "You are running into danger"

Or "I require assistance". With one or more numerals, the speed in kilometres per hour.

Or R - Romeo. With one or more numerals, the distance in nautical miles.

Or "I require medical assistance"

Or "Stop carrying out your intentions and watch for my signals"

Or U - Uniform

Or "I am dragging my anchor"

Or "I require a tug". With one or more numerals, the time (UTC).