ZD948 was acquired from British Airways as a TriStar 500 just four months earlier. Here being a TriStar C1 passenger aircraft of the RAF it was still wearing the remains of its BA colours and 'last two' of its former registration G-BFCA. The aircraft would be converted into a K1 tanker version in 1985 and then a KC1 tanker-transport version with cargo door. It taxies out here for a full-length take-off from Brize. Departing before it is Hercules XV217 countering the crosswind from the north.