OK, it’s answers time. Between you all, you got 100 per cent on this batch.

From top left: HS 748 (somewhere over the North Sea, Liverpool-Rotterdam, November 1980); Yak-141 (Farnborough 1992); Transall C160 (Upper Heyford, 1971); Messerschmitt Bf110 (as flown by one R Hess, Duxford, July 1978); Airspeed Ambassador (Schiphol-Liverpool April 1967); Boeing 737 (Manchester-Gatwick, over Farnborough, April 2004).