UH-60A BLACKHAWK HELICOPTER Japan A man and a woman

A man and a woman sit reading books

In 1926 -1927 years refitting for modernization

The large reproduction and quality of the 88 B&W photographs

9 dm2) of window space

98 cm L x 5

UH-60A BLACKHAWK HELICOPTER Japan A man and a womanThe Sikorsky UH 60 lack Hawkis a "twin turbine engine, single rotor, semimonocoque fuselage, rotary wing helicopter. The Black Hawk was developed to meet a US Army requirement for a UH 1 Iroquois replacement in 1972. Three prototypes were constructed, the first (YUH 60) flying in October 1974, and evaluated against a rival (YUH 61) Boeing Vertol design. The Black Hawk was selected for production and the UH 60A entered service with the US Army in 1979.