TOP 10:Helicopters - UH-60(No.2)
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18 سال پیش
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'The Sikorsky UH-60 Black Hawk
'The Sikorsky UH-60 Black Hawk is a medium-lift utility or assault helicopter derived from the twin-turboshaft engine, single rotor Sikorsky S-70.
The S-70 was the winner of a United States Army Utility Tactical Transport Aircraft System (UTTAS) competition in the early 1970s to replace the UH-1 Huey family. Though the two final competing designs were both developed to Army specifications, the UH-60 was selected over the Boeing-Vertol YUH-61 entry from Boeing-Vertol. It would go on to serve as the basis for variants in service with other branches of the US military...'
for more information,pls click
en.wikipedia.org/wiki/UH-60_Black_Hawk
18 سال پیش
در تاریخ 1386/02/08 منتشر شده
است.
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