What Flag Does a Ship Fly When Leaving Port?
When a ship is leaving port, it typically flies the flag of the country in which it is registered. This national ensign is a significant identifier that reflects the ship's legal and operational jurisdiction. Additionally, ships may display a courtesy flag or a house flag while in port, both of which signify the shipping company's identity.
Differentiating Registration and Company Flags
A ship’s flag of registration, often the most prominent, is always the one that indicates the country of the ship's registration. For example, if a ship is registered in Liberia, its flag will be that of Liberia. Similarly, a ship registered in India will fly the Indian flag.
While in port, a ship may also choose to display a courtesy flag or a house flag. The courtesy flag is that of the country the ship is currently in, showing respect and adherence to local customs and regulations. The house flag, on the other hand, is a unique identifier for the shipping company itself. This flag is often a symbol of the company's identity and heritage.
Flags during Departure
The process of changing flags when a ship is leaving port is meticulous and follows specific maritime protocols. Upon leaving the dock, the ship's national ensign is shifted from its original position at the stern to the highest mast on the ship. This flag remains in place until the ship re-enters a port.
For a more symbolic and festive departure, some ship owners opt to fly the Blue Peter flag for a day before departure. The Blue Peter flag has a special meaning and is recognized internationally as an indication that a vessel is about to set sail. It is particularly handy when sailors meet on docks or in marinas, as it serves as a friendly and practical warning to others.
Flags During Arrival and Departure Procedures
While arriving at a port, ships are expected to fly a series of specific flags to indicate their requirements and status. Prior to arrival, a ship should fly the letter 'G' or Golf flag, meaning 'I require a pilot'. Once the pilot boards the ship, the 'G' flag is changed to the 'H' or Hotel flag, indicating that a pilot is now onboard.
Additionally, the ship may fly a 'Q' flag requesting a 'Free Pratique' or health clearance, if there is no communicable illness onboard. The 'Q' flag is taken down as soon as pratique is granted.
In addition to these, the ship will typically fly its house flag on the bridge mast and the country of arrival's flag on the poop stern mast, as a sign of respect and compliance with local customs and regulations.