The Henschel Hs123 was developed from a 1933 requirement for a dive bomber by the then-emerging Luftwaffe. This aircraft was fairly advanced for its day, featuring an all-metal construction powered by a 725 horsepower BMW 132A radial engine. This gave the Hs 123 a 200 mph top speed. Its sesquiplane design made it extremely maneuverable and its twin 7.92 mm machine guns gave it some teeth as well. Although many regard this as one of the best biplane fighters of World War 2, the Luftwaffe considered it mostly as a stop-gap measure until the Ju 87 Stuka could be put into full production.