It must have been taken early 47 as when I arrived 47/48 the maintenance area with 4 hangers had been built and the North Side was taken over by American, European and UK airlines for arrivals and departures no heavy maintenance was carried out apart from turn round defects, all BOAC and BSAA were towed off to the maintenance area defects cleared and towed back again and refuelled on North Side, for foreign a/c they went to the south side of the airfield for heavy defects [engine changes etc.].One glorious memory was if I went over to the North Side in the morning the Pan Am and American airlines cabin crews used to give me copies of American newspapers with the funnies the odd pack of chewing gum and DONUTS, bliss , we were still on strict rationing in those days