London Ashford aka Lympne was also a looong way from London.
London Ashford is Lydd, not Lympne.
Lympne was a grass field that closed years ago. Silver City used to operate car ferries from Lympne which used to get very boggy after heavy rain. They asked the then Ministry of Civil Aviation to lay a hard runway. The MCA thought they had a captive customer and refused. Silver City then told the MCA to s*d off and built their own airport, Lydd Ferryfield, from scratch out near Dungeness. This is what is now London Ashford.