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UH-60 Black Hawk

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The Sikorsky UH-60 Black Hawk is a "twin-turbine engine, single rotor, semi-monocoque fuselage, rotary wing helicopter." (TM 1-1520-237-10, HQ Department of The Army OCT 96) The medium-lift utility or assault helicopter was the winner of a United States Army competition in the late 1970s to replace the Huey (UH-1) family. Though the two final competing designs were both developed to Army specifications, the UH-60 was selected over an entry from Boeing-Vertol. It would go on to serve as the basis for variants in service with other branches of the US military.

It can perform a wide array of missions, including the tactical transport of troops, electronic warfare, and aeromedical evacuation: several Black Hawks are even used to transport the President of the United States as Marine One. In air assault operations it can move a squad of 11 combat troops with equipment or reposition the 105 mm M102 howitzer with thirty rounds of 105 mm ammunition, and a six-man crew in a single lift. Alternatively, it can carry 2,600 lb (1,170 kg) of cargo or sling load 9,000 lb (4,050 kg) of cargo. The Black Hawk is equipped with advanced avionics and electronics for increased survivability and capabiility, such as the Global Positioning System.

History

UH-60 Blackhawk helicopters eqipped with M60 machine guns near Najaf, Iraq in May 2005
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UH-60 Blackhawk helicopters eqipped with M60 machine guns near Najaf, Iraq in May 2005

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. In the late 1980s the model was upgraded to the UH-60L (First production aircraft 89-26179) which featured more power and lift with the upgrade to the -701C model of the GE engines. A newer model is being engineered (UH-60M), which will extend the service life of both UH-60A's and UH-60L's well into the 2020s, features still more power and lift and state of the art electronic instrumentation, flight controls and aircraft navigation control.

Variants

The standard UH-60 comes in many variants, and many different modifications. The standard US Army version is now fitted with wings that allow it to carry up to four external fuel tanks for extended range operations, while variants may have different capabilities and their respective equipment in order to fulfil different roles.

The unit cost varies with the version due to the varying specifications and equipment. For example, the unit cost of the Army's UH-60L Black Hawk is $5.9 million while the unit cost of the Air Force MH-60G Pave Hawk is $10.2 million.

Problems

When firing the M134 minigun, all voice communications in the cabin and outgoing radio communications are greatly impaired due to the noise generated by the weapon and crew have to resort to hand signals, which diverts their attention away from the environment outside. (This is not a design flaw in the aircraft- 100 machine gun blasts per second is just really loud.)

Popular culture

UH-60s have been featured in many movies and games, though certain examples stand out from the rest:

Specifications (UH-60 Black Hawk)

Orthographically projected diagram of the UH-60A Black Hawk.

Operators

Sikorsky offered the design in the defense market, leading to its purchase by over 20 other countries. It is in service with the armies of Argentina, Australia, Austria, Bahrain, Brazil, Brunei, the People's Republic of China, Colombia, Egypt, Israel, Japan, Jordan, Malaysia, Mexico, Morocco, the Philippines, Saudi Arabia, South Korea, Spanish Navy, Republic of China (Taiwan), Thailand, and Turkey. The largest and most well known user remains the United States.

External links

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