Curtiss B-2 Condor

The Curtiss B-2 Condor was a large twin-engine biplane bomber developed for the U.S. Army Air Corps in the late 1920s. Among the biggest American military aircraft of its era, it carried a crew of five and was powered by two Curtiss V-1570 Conqueror liquid-cooled V-12 engines, each producing more than 600 horsepower and mounted in nacelles between the wings, with gunner's positions built into the rear of each nacelle. The Condor reflected the Army's interest in long-range strategic bombing during a period of rapid aviation growth, but its biplane configuration was already being overtaken by emerging all-metal monoplanes.

Only thirteen B-2s were built between 1929 and 1930, equipping a single bombardment group. Although its frontline career was brief, the Condor was a notable showcase of Curtiss engineering and the high-water mark of the American twin-engine biplane bomber before the monoplane revolution of the 1930s.