Messerschmitt Bf 109 was called the Me 109R, suggesting it was just another variant of the standard fighter, but in fact it was a racing aircraft having little in common with the Bf 109. It was powered by the DB 601ARJ, producing 1,156 kW (1,550 hp), but capable of reaching 1,715 kW (2,300 hp). This world record for a piston-engined aircraft was to stand until 1969, when Darryl Greenamyer's modified Grumman F8F Bearcat, "Conquest I", broke it with a 777 km/h (483 mph) record speed. When the Bf 109 was designed in 1934, by a team led by Willy Messerschmitt and Robert Lusser,
Messerschmitt Bf 109 operational history and marks came into the RAF's hands in various ways throughout the war, including captures by Allied ground troops, forced or mistaken landings by German pilots, and defections. They were then passed to the Air Fighting Development Unit where they were extensively tested before passing them on to the RAF's No. 1426 (Enemy Aircraft) Flight, nicknamed "the Rafwaffe" ("see main article for details of the six Bf 109's they operated"). Other Bf 109s captured and operated by the RAF and Commonwealth air forces included the following: Several Bf 109Es were captured intact by the French shortly after the outbreak of