Formed from 481, 482 & 483 RNAS Flights in Italy in Aug 1918 but was disbanded that Dec. It saw Army support service in WWII from Oct 1939 at Odiham when it formed from 614 Squadron, A Flight with Lysanders. It served in North Africa, Italy and France with Hurricanes and Mustangs before disbanding in Italy in Jan 1947.
On 1 Jan 1960, the Joint Helicopter Unit was raised to squadron status and 225 Squadron took on its Sycamore HR.14 and Whirlwind HAR.2 at Andover. It moved back to Odiham in May 1960 and during May 1961 took over the 118 Sq Sycamore in Northern Ireland as a detached Flight but only until 31 Jul 1961 when the Flt was handed back to a re-formed 118 Sq. It received its more powerful and capable Whirlwind HAR.10 at Odiham in November 1961. It sent 4 of its Sycamores to Kenya (transported out and back by RAF Beverleys) the same month to assist in relief operations for the severe flooding experienced.
It retired its Sycamores and Whirlwind HAR.2 by Feb 1962. The unit was sent to the Far East to assist in the Borneo campaign, first to Singapore (Seletar) in Nov 1963 and on to Sarawak (Kuching) in Dec, with various detachments (such as Simanggang). It disbanded there on 1 Nov 1965, with airframes and personnel being reassigned between 103 Squadron and 110 Squadron.
1964-1965, I served on 225 squadron, about half the time at Kuching and the other half on detachment at Lundu. During the time at Lundu we gave support to Gurkhas, Argyle and Sutherland Highlanders, SAS, Malayan Scouts and other special services that we dropped in the jungle. The last group flew in on another chopper, deplaned and immediately boarded our chopper and then sat there till dusk when they were flown out. The scariest thing I had to do was solo refuelling at a remote LZ. When the chopper flew off it was the loneliest place in the world