Fleet Air Arm was created in 1937.
Fleet Air Arm Museum was created in 1964-05.
Fleet Air Arm Museum - Australia - was created in 1990.
The Royal Navy no longer has a Fleet air Arm
RAF is the Royal Air Force. So the differences between the RAF and Royal Army (No such thing as the Royal Army it's the British Army) (or any army) would be same as the differences between any army and air force in general - different missions, different tasks, etc.
Fleet Command was created in 1999.
The Fringes of the Fleet was created in 1916.
Northern Fleet was created in 1933.
Fleet Buzz was created in 1995.
Baltic Fleet was created in 1702.
Undersea Fleet was created in 1956.
Combined Fleet was created in 1894.
Sydney Fleet was created in 2007.