Sir, Flying into the old Kai Tak airport, Hong Kong, in the 1950s as a BOAC stewardess, and seeing pedestrians putting their hands over their ears as our four Merlin engines roared over them, made me realise what a damnable intrusion we were (letters, Mar 31). Wherever we flew low over habitation we were a curse. By contrast, approaching Caracas we flew over the sea; bathers would wave to us.
Airports should be sited on coasts, away from habitation. It would be safe for all: passengers and population. The Thames estuary is the right site.
Mary D. Nichols
Holton, Suffolk