The unit was formed at
RAF Abingdon on 8 April 1940 with
No. 97 Squadron RAF (97 Sqn) and
No. 166 Squadron RAF (166 Sqn) flying
Armstrong Whitworth Whitleys to train night bomber crews. During 1942 10 OTU took control of an anti-submarine flight detached to St Eval and 10 OTU was transferred to
No. 91 Group RAF. Between March and November 1944 the unit moved to
RAF Stanton Harcourt whilst runways were laid at Abingdon with
Vickers Wellingtons arriving from June. During September the last Whitley left and later in the year, during December, it gained the control of the
Polish Flight from
No. 18 Operational Training Unit RAF (18 OTU), until June 1945 when the flight disbanded. 10 OTU disbanded on 10 September 1946 back at Abingdon. ==Airfields used==