For the record, we report that on Tuesday May 5th, Major Christopher Draper, D.S.O., surprised many Londoners spending their lunch hours in the bright sunshine by flying an Auster Autocrat, G-AGYD, under 15 Thames bridges. Approaching water level (the tide was low) over Blackfriars Bridge, outside Flight offices, he flew under Waterloo Bridge, over Hungerford railway bridge, and then under Westminster and thirteen more bridges as far as those at Barnes and Kew, which were not included. The pilot then flew back to Broxbourne, where he is a member of the club, and where he had hired the aircraft. Major Draper, who is 61, described the flight as a "swan-song to 41 years of flying."
Source: Flight International