The Army proposed to mount a 105 mm artillery gun on the chassis of a UH-1 Iroquois Huey helicopter. The engineers wanted to take the body of the iconic Huey helicopter and remove the nose.
Known as the Zulu Cobra, it combines the best features of the Huey and Cobra ... the Viper meets modern battlefield demands, making it the most advanced attack helicopter today.
Helicopters had become essential for modern U.S. warmaking ... By the time the Vietnam War erupted, the Bell UH-1 Iroquois (Huey) was the primary power projection platform for the United States ...