As further large contracts for the aircraft were placed with Airspeed, (100 Mk Is and 100 Mk IIs) it was arranged that de Havilland Aircraft would build them at Hatfield later, to meet the demands for Oxfords for training.
Da Airspeed modtog yderligere store ordrer (100 stk. Mk.I og 100 stk. Mk.II) blev det arrangeret, at de Havilland Aircraft skulle bygge dem i deres Hatfield fabrik for at dække behovet for Oxfords til træning.