sentences:  The airfield initially housed No 4 Air Gunnery School (4 AGS).Accommodation was in 10 dispersal sites to the north and east of the airfield near Tranwell village and The Whitehouse Centre (post-war this became a children's hospital).The main aircraft used during its early existence for teaching air gunners was the unpopular Blackburn Botha, which was very heavy and under-powered, often taking the whole of the runway to get airborne.