Royal Naval Air Service
Group To 1918
We can't find a date for when this was first formed; it seems to have come into existence gradually. The use of aircraft for military and naval purposes was first discussed officially in 1908. Two aircraft and pilot training were given to the navy in 1910. Then in 1912 Royal Flying Corps was formed with a Naval Wing. But that split off in 1914 to become the RNAS. This came under the control of the Royal Navy in 1915 and finally in 1918 the RNAS was merged with the RFC to form the RAF.