Tuesday, September 27, 2016

The uh-60 black hawk

The UH-60 Black Hawk helicopter’s first flight was in Oct 17 1974. This was, 2 years after when the US Army commissioned the Sikorsky and Boeing-Vertol to produce and initially test 3 prototypes helicopters within the specifications of a UTTAS or the Utility Tactical Transport Aircraft System.


When Sikorsky won over Boeing-Vertol to become the produced of Black Hawk helicopters for the Army, the UH-60 Black Hawk helicopter became their very first model to produce.


Here are the details about the UH-60 Black Hawk helicopter:


General characteristics


Crew: 3+11


Rotor diameter: 16.36 m (53 ft 8 in)


Length: 19.76 m (64 ft 10 in)


Height: 5.13 m (16 ft 10 in)


Disc area: 210 mІ (2,260 ftІ)


Maximum takeoff weight: 11,113 kg (24,500 lb)


Weight (Empty): 4,819 kg (10,624 lb)


Weight (Loaded): 7,375 kg (16,260 lb)


Engine: 2Ч General Electric T700-700 free-turbine


Turboshafts, 1,560 hp each


Performance


Combat radius: 420 nm, 592 km (368 mi)


Disc loading: 35.4 kg/mІ (7.19 lb/ftІ)


Ferry range: 1,200 nm, 2,220 km (1,380 mi)


Maximum speed: 193 knots, 357 km/h (222 mph)


Power/mass: 158 W/kg (0.959 hp/lb)


Rate of climb: 3.6 m/s (700 ft/min)


Service ceiling: 5,790 m (19,000 ft)


Armament


Guns: 2Ч 0.30 in (7.62 mm) M60 machine guns (M134 miniguns)


Black Hawk Helicopter Significant dates:


1972: US Army UTTAS (Utility Tactical Transport Aircraft System) program begun.


Oct 17, 1974: the Sikorsky YUH-60made its first flight


December 26, 1976: Sikorsky YUH-60 Black Hawk was declared the winner against Boeing-Vertol YUH-61. This was 7 months after the first competitive test began.


September 1977: The US Navy LAMPS III competition was won by the S-70B


October 1978: The first produced UH-60A made its first flight.


1979 The first produced UH-60A was delivered to the US Army.


December 12, 1979: The SH-60B made its first flight


September 1981: The electronic warfare variant, theYEH-60A EW Blackhawk made its maiden flight


February 4, 1984: The HH-60 Nighthawk made the first flight


September 1986: The HH-60J USCG Jayhawk also made the first flight


October 1989: The engine of the UH-60L was upgrade and became ESSS capable


May 5, 1994: The Hawk’s 2000th member took off


The following are the names of other Black Hawk helicopters that made their flights throughout the history:


·YUH-60A


·UH-60A


·GUH-60A


·JUH-60A


·EH-60A


·YEH-60A


·HH-60A


·MH-60A


·VH-60A


·UH-60B


·YEH-60B


·YSH-60B


·SH-60B


·EH-60C


·CH-60E


·HH-60D


·HH-60E


·HH-60G


·SH-60F


·MH-60G


·HH-60H


·HH-60J


·UH-60J


·MH-60K


·UH-60L


·MH-60L


·VH-60N


·UH-60P


·UH-60Q


·S-70A


·S-70B-6


·S-70C


·S-70C(M)-1


·WS-70


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