On May 17th 1943 the Royal Air Force carried out one of the most remarkable raids ever undertaken by any aircrew. On that night a squadron of Lancaster heavy bombers flew at low level across a blacked out Europe, towards the four great dams that delivered water and power to the German industrial heartland of the Ruhr.

That raid is immortalised on the front of the Dambusters T Shirt, and is being given away as runners up prizes in this years Calendar Competition, courtesy of RAF Museum Cosford.

For full prize table so far, and to enter this years competition please visit http://www.airscene.co.uk/competitions/2013calendar.php.

Tags: 2013, Airscene, Airshow, Calendar, Competition