The Boeing Vertol YUH-61 (company designation Model 179) was a twin turbine-engined, medium-lift, military assault/utility helicopter. The YUH-61 was the runner-up in the United …

The YUH-61A, as the Army designated the Boeing-Vertol machine, featured a four-bladed hingeless main rotor made of composite materials, had built-in work platforms that allowed …

The fiberglass main and lall rotor blades of the YUH-61A offer major advantages: (1) complete freedom from corrosion; (2) insensUiv9 to minor defects; (3) long Ufe-

Jul 7, 2011 · YUH-61A. The Boeing-Vertol 179 / 237 / YUH-61A was a competitor in the UTTAS program to choose a utility helicopter for the US Army (won by the Sikorsky UH-60).

The artificial icing test of the YUH-61A helicopter was conducted jointly by the United States Army Aviation Engineering Flight Activity (USAAEFA) and Boeing Vertol Company at Fort …

The Boeing Vertol YUH-61 (company designation Model 179), was a twin turbine-engined, medium-lift, military assault/utility helicopter. The YUH-61 was the runner-up in the United …

Dec 19, 2023 · The Boeing Vertol YUH-61A, also known as Model 179, was a prototype military helicopter developed for the United States Army's Utility Tactical Transport Aircraft System …

Boeing-Vertol 179 / YUH-61A The Model 179 was Boeing Vertol entry for the US Army Utility Tactical Transport Aircraft System ( UTTAS ) competition to replace the Bell UH-1 Iroquois …

The YUH-61 was the runner-up in the United States Army Utility Tactical Transport Aircraft System (UTTAS) competition to replace the Bell UH-1 Iroquois helicopter. Three aircraft were …

The YUH-61 was Boeing Vertol's unsuccessful competitor to Sikorsky's Black Hawk. The need to fit in a C-130 was even more appararent in this design. The photo shows the type's first flight, …