Ahead of its time in performance and design, the Lockheed AH-56 seemed like a promising attack helicopter for the United States Army during the Vietnam War, but instead ended up on the chopping block.
Despite its cancellation, the Lockheed Martin AH-56 Cheyenne left a lasting legacy on US military aviation. In the 1960s, as the Vietnam War was raging, Lockheed Martin created a concept known as the ...