I well remember seeing the Breguet Deux Ponts land coming over the Gt.South West Road. At times Heathrow had some very interesting aircraft, such as this American Catalina owned by Mosanto Chemicals.
I lived at Heston so that much of my youth was spent cycling to LHR or making a circuit of the whole of the Airport's circumference via public roads.
Heston of course was an important Airport which during its time became second to Croydon for aircraft movements and nearly became the No.1 Airport for London, before Heathrow was finally decided as the final option.