AberdeenAngus
Registered user
at the risk of being a PITA, its a Union Flag.
Its only a Union Jack when flown from a jack staff.
Jacks
Jacks are additional national flags flown by warships (and certain other vessels) at the head of the ship. These are usually flown while not underway and when the ship is dressed on special occasions. Jacks in the Royal Navy must be run up when the first line is ashore when coming alongside.
In Britain's Royal Navy, the Union Flag at sea serves both as a naval jack and as the rank flag of an Admiral of the Fleet. It is illegal for a merchant ship or yacht to fly the Union Flag: a civilian jack (sometimes known as the pilot jack as it was formerly used to request a pilot) exists, and consists of the Union Flag with a white border. The St George's Cross flown from the jack staff is known as the Dunkirk jack, and is customarily flown by ships and boats which took part in the Dunkirk evacuation operation in 1940. The flying of the St George's Cross elsewhere on a civilian ship is illegal, as it is the rank flag of a full Admiral.
Agree that's the origin of the term but, if you check the Oxford English Dictionary you will see....
Union Jack
(also Union flag)
• noun; the national flag of the United Kingdom.
So the original post was perfectly correct in his usage of the term.
Na na na na na !

