"Is the Queens Colour Sqdn now permanently a job for the Rock's?"
From
The Queen's Colour Squadron - Ceremonial
"The Royal Air Force had a ceremonial drill unit based at Royal Air Force Uxbridge in Middlesex, as early as the 1920s.
On the 1st of November 1960 the Royal Air Force Drill Unit, as it was then known, was re-named The Queen’s Colour Squadron of the Royal Air Force and since then has been manned exclusively by the officers and airmen of the Royal Air Force Regiment."