Free French Air Force
As work was drawing to a close in May 1943 the first squadrons started to arrive. The first was 342 (Lorraine) Squadron of the Free French Air Force within 2 Group from RAF West Raynham. This squadron operated two flights of the Douglas Boston aircraft along with some Douglas A-20 Havoc aircraft for training. No. 342 Squadron stayed until 19 July 1943 when they moved to RAF Great Massingham.