The year was 1972. The year when the USAF had learn their lessons in the Vietnam War. This year gave the need to replace Bells Huey series and produce more reliable and versatile helicopter. And so, the US Army commissioned the Sikorsky and Boeing-Vertol to produce and initially test 3 prototypes helicopters that were robust, simple, and within the requirements of the UTTAS or the Utility Tactical Transport Aircraft System.
The Skorsky helicopters were named YUH-60A while the Boeing-Vertol helicopters were named YUH-61A. Years later, both companies went head to head. Sikorskys YUH-60A was declared the winner. Sikorsky was immediately contracted to produce the first 15 units of UH-60A Blackhawks.
Since the Army created the specifications of the helicopter, the general appearance was literally made within the requirements set by the Army- the one that is stated to fit as a UTTAS helicopter.
One of the conditions is that the Blackhawk helicopter should fit and can be air-lifted in the cargo bay of the C-130 Hercules. Thus, the Blackhawk was characterized by a long, downward-sloping tail with a mobile stabilizer, four-bladed anti-torque rotor and sharply-swept...
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