Avro 683 Lancaster B.1 (PA474 HW-R/BQ-B) of the Battle of Britain Memorial Flight (BBMF), over the seafront in Eastbourne, Sussex, England, during the biggest international air show in the world, also called 'Airbourne' (August 2009). This Bitish heavy bomber aircraft, with four Rolls-Royce Merlin engines, is one of two in airworthy after the Second World War.