1) The single-letter signal means, ‘Keep clear of me, I am engaged in pair trawling’. This is an important signal for pleasure-craft skippers, and since the signal flag consists of red, white and blue in three vertical bands you might mistake it for the French ensign. The Morse code is one dash, but the above signal cannot be made by a single hoot because that means, ‘I am altering my course to starboard’. Tango is the word for T in phonetic.

T (2) True. See also: North.