The PZL 11 is one of the worlds earliest multi-role fighters, in use as early as the late 1920s. It was developed by the Polish aviation company PZL (Polemiskie Zaklady Lotnicze) and was the first domestically-produced fighter for the Polish Air Force. The aircraft was constructed with a low wing monoplane design for increased speed and maneuverability. The plane was powered by an Bristol Jupiter radial engine with two tandem cockpits. The PZL 11 had an impressive maximum speed of 217 mph (350 km/h) with a service ceiling of 26,247 ft (8,000 m) and an operational range of 350 miles (562 km). The aircraft was equipped with both fixed armament and various light, flexible machine guns. In terms of appearance, the PZL 11 was outfitted with an offset round engine cowling and a long spinner protruding from the engine. It had a mid-length tandem fuselage and wingspan was 25 ft (7.62 m). The fuselage featured redesigned, adjustable metal wings. The aircraft had an all-over silver scheme with a black widows peak marking the top of the engine cowl. The PZL 11 proved to be a potent fighter with remarkable dog fighting performance as well as a reliable bomber. It was used by the Polish Air Force throughout the interwar period and participated in the Polish Defensive War of 1939. It was also exported to Czechoslovakia and Yugoslavia where it saw action in the 1940s.
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