AA62: I offer a possible explanation of the Breighton/Middleton St George question regarding 78 Sqn. 10 Sqn, then also a 4 Gp Halifax unit, moved from Leeming to its own base at Melbourne, east of York, in August 1942. However, until runways capable of taking war loads were completed, crews were ferrying aircraft to Topcliffe and/or Pocklington for Ops until the first could be flown from Melbourne on 23 October that year. Might something similar have been happening at Breighton?