Interesting, in North Bedfordshire we lived under the ‘beam’ route to the Industrial Midlands, like Coventry and Birmingham and the Luftwaffe bomber stream was continuous. Occasionaly one would dump his bombs but generally it was very quiet. On moonlight nights we used to lie outside on the grass and try to see the aircraft cross the moon. Never did see one!The Duxford site is good, must get my kid to have a look at it.