Henschel was a German locomotive manufacturer. Soon after Hitler's rise to power, Henschel decided to start designing aircraft, one of the first being the Hs 123. The aircraft was designed to meet the 1933 dive bomber requirements for the reborn "Luftwaffe". Both Henschel and rival Fieseler (with the Fi 98) competed for the production contract requirement, which specified a single-seat biplane dive bomber. The first prototype, the Hs 123V1, was cleared for its maiden flight on 1 April 1935; General Ernst Udet, a World War I ace, flew it on its first public demonstration flight on 8 May 1935. The first three Henschel prototypes, with the first and third powered by 485 kW (650 hp) BMW 132A-3 engines and the second by a 574 kW (770 hp) Wright Cyclone, were tested at Rechlin in August 1936. Only the first prototype had "smooth" cowlings; from that point on, all aircraft had a tightly fitting cowling that included 18 fairings covering the engine valves. The Henschel prototypes did away with bracing wires and although they looked slightly outdated with their single faired interplane struts and cantilever main landing gear legs attached to smaller (stub) lower wings, the Hs 123 featured an all-metal construction, clean lines and superior maneuverability. Its biplane wings were of a "sesquiplane" configuration, whereby the lower wings were significantly smaller than the top wings.