1st April 1918, it was their 90th anniversary this year. That was when the Royal Air Corps became the Royal Air Force, a separate branch of service. The US did not form their Air Force until 1947.
It was actually an amalgamation of the Royal Flying Corps and the Royal Naval Air Service
The RAF was formed on April Fools' Day 1918 and was an amalgamation of the Royal Flying Corps (RFC) and the Royal Naval Air Service (RNAS). It was designed to combine the best of both organisations and maintain standards across the field of heavier than air aviation (planes not balloons)
The Royal Navy took control of maritime aviation again in 1939 when the Fleet Air Arm was formed.
Training Group RAF was created in 1994.
Training Group RAF ended in 2006.
RAF Training Command was created in 1936.
RAF Flying Training Command was created in 1940.
RAF Technical Training Command was created in 1940.
RAF Training Command ended in 1977.
Omega Training Group was created in 1990.
RAF Flying Training Command ended in 1968.
The motto of RAF Training Command is 'Terra Caeloque Docemus'.
RAF Technical Training Command ended in 1968.
RAF Flying Training Command's motto is 'Per Laborem ad Summa'.
The motto of RAF Technical Training Command is 'Labore Terrestri Caelestis Victoria'.
Evaluating a Large Group Awareness Training was created in 1990.