The twin-engine heavy fighter concept was adopted by the air forces of both Germany and France in the 1930s. The competing designs, the French Potez and the German Messerschmitt Bf 110, would meet in combat over the fields of France in May and June of 1940. Though the twin-engine fighter would, in general, prove less successful as an air combat dogfighter than the various designers had hoped, in the spring of 1940 this lesson had not yet been learned by either Axis or Allies. This scenario depicts a typical engagement between German and French twin-engine fighters.
