The Sikorsky UH-60 black colored colored Hawk is a "twin-turbine" motor, solitary rotor, semimonocoque fuselage, rotary wing helicopter. The "Ebony Hawk" originated to generally meet with a US Army dependence on a UH-1 Iroquois replacement in 1972. Three prototypes are constructed, the first (YUH-60) traveling in October 1974, and examined against a rival (YUH-61) Boeing-Vertol design. The Ebony Hawk had been indeed selected for manufacturing along with UH-60A entered solution using the united states Army in 1979.