One of the most famous and successful bombers during the Second World War, the legendary Avro 683 Lancaster B1 (PA474) of the Battle of Britain Memorial Flight (BBMF), one of the two that currently fly in the world, celebrates 70th anniversary from the first flight on January 9 1941 in the Battle of Britain, at air show 'Flying Legends' in Duxford, Cambridgeshire, UK (July 2010).