There’s no airplane quite like the Grumman X-29. Its astonishing forward-swept wings were just one of its many bold innovations.

Created at the height of the Cold War by a conglomerate of giants -- NASA, the US Air Force, the “men in black” at the Defense Advanced Research Projects Agency (DARPA) and aerospace behemoth Grumman -- it first flew in 1984 as part of a quest to build the ultimate fighter jet.

Also: https://www.youtube.com/watch?v=RN6vGxyMcVU

source: HN