PANAMA remains at the top of the list, with the most tonnage and number of vessels registered with the flag, by a long stretch.
People Also Ask
The black flag was part of a flag signal combination, together with a plain red flag. After closing in on a target ship, the black flag would be raised, signaling that quarter will be given if the target crew surrendered their cargo/valuables without a fight.
International Code Flag Q is flown when entering most foreign ports or when returning to a U. S. port from a foreign cruise. It signals to customs and immigration officials that you request clearance. Take it down and replace it with courtesy flag after formalities are complete.