The Black Hawk
The Black Hawk is the military’s most versatile helicopter, suited for a variety of missions, including command and control, air assaults, medical evacuations, and lift operations. Capable of carrying four crew members (two pilots and two crew chiefs) plus a fully equipped 11-person infantry squad, the Black Hawk can also hold a 105 mm howitzer or a Humvee suspended below the aircraft during sling-load operations.
The Black Hawk serves with the US military and the armed forces of 28 other countries worldwide as a tough, reliable utility helicopter.
More than 4,000 Black Hawks of all types are in service worldwide today. The US Army is the largest operator with 2,135 H-60 designated aircraft. The same aircraft sold internationally direct from Sikorsky acquires the S-70 designation.
The EH-60As with DFE kits, the first stealth Black Hawks
Sikorsky even produced the EH-60A QUICK FIX, a very special version of the Black Hawk. The EH-60A Quick Fix consisted of a UH-60A helicopter modified to identify, locate and jam ground based electronic communication transmissions.
As explained by Peter W. Merlin in his book Dremland The Secret History of Area 51, in 1987, the chief of Army Aviation Systems Command directed the Army Aviation Engineering Flight Activity (AEFA) at Edwards Air Force Base to participate with Sikorsky in a flight evaluation of a EH-60A fitted with the Direction Finding Enhancement (DFE) kit. The DFE kit was actually a collection of structural components and materials that could be temporarily installed to reduce the chopper’s RCS.
Between 1988 and 1991 several DFE kits were produced and fielded with the 101st Airborne Division, 17th Cavalry Regiment, at Fort Campbell. Operational aircrews found that the add-ons resulted in performance limitations and proved a headache for maintenance technicians.
The RAH-66 Comanche
The evolution of stealth rotorcraft continued in 1988 when Sikorsky and Boeing teamed to develop and build the RAH-66 Comanche armed reconnaissance helicopter.
The Comanche featured an all-composite fuselage, fully integrated digital flight controls, and advanced navigation and weapons systems. It was designed to provide U.S. forces with accurate, timely tactical intelligence.
First deliveries were scheduled for 2006, with the Comanche program reaching full production by about 2010. Plans were to manufacture 1,213 RAH-66s for US Army service. The Army canceled the program in February 2004 as a part of a reorganization of Army Aviation.
Low-observables kit used on the MH-60K
By this time, the US Special Operations Command (USSOCOM) had contracted the Boeing-Sikorsky team to leverage its combined experience in a renewed effort to modify the Black Hawk into a stealthy configuration.
According to a retired special-operations aviator, the classified project had two aims. The first was to reshape the aircraft and cover it with RAM to lower its RCS, and the second was to make it significantly quieter. The result was essentially an improved version of the low-observables kit used on the EH-60A, but this time applied to the MH-60K model. “It really didn’t look like a traditional Black Hawk,” he said. “[It had] hard edges, sort of like an . . . F-117, you know how they have those distinctive edges and angles.”
The source further explained that initial plans called for building four of the stealthy helicopters for use with a new special-operations aviation detachment located at a military facility in Nevada. The USSOCOM planned to assign as many as thirty-five to fifty personnel to the unit, under the command of a lieutenant colonel. “The intent was: always to move it out wests where it could be kept as a covert capability,” he said.
Those plans were eventually canceled, but not before two of the low-observable helicopters had been delivered. In the…
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