Created by aviation pioneer Willy Messerschmitt, the Bf 109 was an innovative, ground-breaking design. In the face of stiff competition from other German aircraft manufacturers, this powerful, maneuverable and light aircraft was selected as the Luftwaffe's standard fighter, and it went on to see action in every theater of operations in the Second World War. With more than 33,000 examples built, the Bf 109 is the most-produced fighter aircraft of all time. In 1937 the Bf 109 demonstrated its great performance potential by achieving several impressive victories at the Zurich Air Meet and setting the world speed record of 611 kph. This book describes factually and accurately the development, testing and technology of the Bf 109 as well as the production variants Bf 109A to Bf 10E.