List of Royal Air Force Operational Training Units

Royal Air Force Operational Training Units were training units that prepared aircrew for operations on a particular type or types of aircraft or roles.

1 - 19 OTUs

Name	Formed on	Formed at	Group	RLG's used	Aircraft	Disbanded on	Notes
No. 1 Operational Training Unit RAF	1 April 1940	RAF Silloth	No. 17 Group RAF	RAF Speke RAF Prestwick RAF Kirkbride RAF Longtown RAF Thornaby RAF Beaulieu RAF Aldergrove	Lockheed Hudson Avro Anson Bristol Blenheim Bristol Beaufort Boeing Fortress Handley Page Halifax Consolidated Liberator Westland Lysander Miles Martinet	19 October 1943
No. 2 Operational Training Unit RAF	1 October 1940	RAF Catfoss	No. 17 Group RAF
No. 3 Operational Training Unit RAF	27 November 1940	RAF Chivenor	No. 17 Group RAF
No. 4 Operational Training Unit RAF	16 March 1941	RAF Stranraer	No. 17 Group RAF				Became 235 OCU in 1947.
No. 5 Operational Training Unit RAF	15 March 1940	RAF Aston Down	No. 12 Group RAF
No. 5 Operational Training Unit RAF	1 August 1941	RAF Chivenor	No. 17 Group RAF
No. 6 Operational Training Unit RAF	6 March 1940	RAF Sutton Bridge	No. 11 Group RAF				Commanded by Squadron Leader Philip Campbell Pinkham No. 6 OTU was re-numbered in November 1940 to No. 56 OTU
No. 6 Operational Training Unit RAF	1 June 1941	RAF Andover	No. 17 Group RAF
No. 6 Operational Training Unit RAF	19 July 1941	RAF Thornaby	No. 17 Group RAF
No. 7 Operational Training Unit RAF	15 June 1940	RAF Hawarden	No. 13 Group RAF				During the Battle of Britain in September 1940, it flew operational flights over north west England, claiming three enemy aircraft shot down. It became No. 57 OTU on 1 November 1940.
No. 7 Operational Training Unit RAF	1 April 1942	RAF Limavady	No. 17 Group RAF
No. 8 Operational Training Unit RAF	18 May 1942	RAF Fraserburgh	No. 17 Group RAF				Formed by merging the Photographic Reconnaissance Conversion Flight of 3 School of General Reconnaissance and 'K' Flight of 1 Photographic Reconnaissance Unit Moved to RAF Dyce February 1943 then to RAF Haverfordwest in early 1945. Became 237 OCU in 1947.
No. 9 Operational Training Unit RAF	7 June 1942	RAF Aldergrove	No. 17 Group RAF
No. 10 Operational Training Unit RAF	8 April 1940	RAF Abingdon	No. 6 Group RAF
No. 11 Operational Training Unit RAF	8 April 1940	RAF Bassingbourn	No. 6 Group RAF				During 1942, it operated seven operational night bombing missions.
No. 12 Operational Training Unit RAF	8 April 1940	RAF Benson	No. 6 Group RAF				Absorbed No. 52 Squadron RAF on 8 April 1940. During 1942, 12 OTU carried out operational night bombing missions.
No. 13 Operational Training Unit RAF	8 April 1940	RAF Bicester	No. 6 Group RAF				Became 228 OCU in 1947.
No. 14 Operational Training Unit RAF	8 April 1940	RAF Cottesmore	No. 6 Group RAF
No. 15 Operational Training Unit RAF]	8 April 1940	RAF Harwell	No. 6 Group RAF				In 1942, it carried out seven operational missions.
No. 16 Operational Training Unit RAF	8 April 1940	RAF Upper Heyford	No. 6 Group RAF				In 1942, it carried out a number of operational sorties.
No. 16 Operational Training Unit RAF	1 January 1945	RAF Upper Heyford	No. 92 Group RAF
No. 17 Operational Training Unit RAF	8 April 1940	RAF Upwood	No. 6 Group RAF				Became No. 201 Advanced Flying School RAF in March 1947.
No. 18 Operational Training Unit RAF	15 June 1940	RAF Hucknall	No. 6 Group RAF				In 1942, it carried out six operational sorties.
No. 19 Operational Training Unit RAF	27 May 1940	RAF Kinloss	No. 6 Group RAF				In June 1942, twelve Whitleys took part in a raid against Bremen.

20 - 43 OTUs

Name	Formed on	Formed at	Group	RLG's used	Aircraft	Disbanded on	Notes
No. 20 Operational Training Unit RAF	27 May 1940	RAF Lossiemouth	No. 6 Group RAF
No. 21 Operational Training Unit RAF	21 January 1941	RAF Moreton-in-Marsh	No. 6 Group RAF				In 1942, it carried out a number of operational sorties. Became No. 202 Advanced Flying School RAF in March 1947.
No. 22 Operational Training Unit RAF	14 April 1941	RAF Wellesbourne Mountford	No. 6 Group RAF
No. 23 Operational Training Unit RAF	1 April 1941	RAF Pershore	No. 6 Group RAF				In 1942, carried out operational sorties.
No. 24 Operational Training Unit RAF	15 March 1942	RAF Honeybourne	No. 7 Group RAF				In 1942, carried out three operational sorties.
No. 25 Operational Training Unit RAF	1 March 1942	RAF Finningley	No. 7 Group RAF				In 1942, carried out a number of operational raids.
No. 26 Operational Training Unit RAF	15 January 1942	RAF Wing	No. 7 Group RAF
No. 27 Operational Training Unit RAF	23 April 1941	RAF Lichfield	No. 6 Group RAF
No. 28 Operational Training Unit RAF	16 May 1942	RAF Wymeswold	No. 92 Group RAF
No. 29 Operational Training Unit RAF	21 April 1942	RAF North Luffenham	No. 7 Group RAF				In 1942, carried out four operation sorties.
No. 30 Operational Training Unit RAF	28 June 1942	RAF Hixon	No. 93 Group RAF
No. 31 Operational Training Unit RAF	23 May 1941	Debert, Canada	n/a				Carried out operational patrols in the Western Atlantic from Dartmouth.
No. 32 Operational Training Unit RAF	20 July 1941	West Kirby, Liverpool, UK	n/a				Declared an operational squadron to protect the Canadian coast from Japanese raids and re-designated No. 32 Operational Squadron on 15 December 1941. Reverted to an Operational Training Unit on 29 December 1941. Re-designated No. 6 Operational Training Unit RCAF in June 1944.
No. 34 Operational Training Unit RAF	8 April 1942	UK	n/a
No. 36 Operational Training Unit RAF	24 February 1942	UK	n/a
No. 41 Operational Training Unit RAF	20 September 1941	RAF Old Sarum	No. 70 Group RAF
No. 42 Operational Training Unit RAF	18 July 1941	RAF Andover	No. 70 Group RAF
No. 43 Operational Training Unit RAF	1 October 1942	RAF Larkhill	No. 70 Group RAF				Became No. 227 Operational Conversion Unit RAF.

51 - 63 OTUs

Name	Formed on	Formed at	Group	RLG's used	Aircraft	Disbanded on	Notes
No. 51 Operational Training Unit RAF	26 July 1941	RAF Debden	No. 81 Group RAF
No. 52 Operational Training Unit RAF	25 March 1941	RAF Debden	No. 81 Group RAF
No. 53 Operational Training Unit RAF	18 February 1941	RAF Heston	No. 81 Group RAF
No. 54 Operational Training Unit RAF	25 November 1940	RAF Church Fenton	No. 12 Group RAF
No. 55 Operational Training Unit RAF	1 November 1940	RAF Aston Down	No. 10 Group RAF
No. 55 Operational Training Unit RAF	18 December 1944	RAF Aston Down	No. 12 Group RAF
No. 56 Operational Training Unit RAF	1 November 1940	RAF Sutton Bridge	No. 81 Group RAF				Previously No. 6 OTU. Became No. 1 Combat Training Wing RAF, then No. 1 Tactical Exercise Unit RAF
No. 56 Operational Training Unit RAF	15 December 1944	RAF Milfield	No. 12 Group RAF
No. 57 Operational Training Unit RAF	1 November 1940	RAF Hawarden	No. 10 Group RAF
No. 58 Operational Training Unit RAF	2 December 1940	RAF Grangemouth	No. 10 Group RAF				Became No. 2 Combat Training Wing RAF, then No. 2 Tactical Exercise Unit RAF
No. 58 Operational Training Unit RAF	12 March 1945	RAF Poulton	No. 12 Group RAF				Disbanded
No. 59 Operational Training Unit RAF	16 December 1940	RAF Turnhouse	No. 13 Group RAF
No. 59 Operational Training Unit RAF	26 February 1945	RAF Acklington	n/a
No. 60 Operational Training Unit RAF	28 April 1941	RAF Leconfield	No. 81 Group RAF				In November 1942, it was renumbered 132 OTU. No. 60 OTU was re-formed in May 1943.
No. 60 Operational Training Unit RAF	17 May 1943	RAF High Ercall	No. 9 Group RAF
No. 61 Operational Training Unit RAF	9 June 1941	RAF Heston	No. 81 Group RAF				Became No. 203 Advanced Flying School RAF
No. 62 Operational Training Unit RAF	1 June 1942	RAF Usworth	No. 81 Group RAF
No. 63 Operational Training Unit RAF	7 September 1943	RAF Honiley	No. 9 Group RAF