Boeing Releases Photos of Super-Secret 1960s Stealth Plane Experiment
![Boeing Releases Photos of Super-Secret 1960s Stealth Plane Experiment](http://cdn4.img.sputniknews.com/images/102755/69/1027556965.jpg)
While the F-117 may be considered the United States’ first successful stealth aircraft, aerospace giant Boeing has just released decades-old photographs which an early prototype known as the "Quiet Bird."