The conversion unit was formed at RAF Kinloss on 31 July 1947 and operated a variety of aircraft including Avro Lancasters, Airspeed Oxfords and Bristol Beaufighters until 30 September 1956 when it was disbanded for the first time to become the Maritime Operational Training Unit on 30 September 1956.

1 Maritime Reconnaissance School at Kinloss and operated Avro Shackletons and Nimrods until 1 July 1970 at St Mawgan.

[1] 236 OCU reformed at RAF St Mawgan on 1 July 1970 operating Hawker Siddeley Nimrods borrowed from No.

[4] The OTU operated Gloster Gladiators, Miles Masters and Fairey Battles until 1 November 1940 when the unit became No.

2 School of Army Co-operation operating Bristol Blenheims for a short time until 18 July 1941 when the unit became No.