The Cold War's B-36 "Peacemaker" was the largest combat aircraft ever built, and the first plane to deliver thermonuclear weapons. But with a wingspan of 230 feet, some worried that the Peacemaker would be a sitting duck for enemy attacks. So the military designed a second, teeny-tiny plane that could be deployed, in case of attack. Officially, it was known as the XF-85 Goblin.
But it's gone down in aviation history as the "Flying Egg." Check out the video, and you'll see why.
www.youtube.com/watch?v=&rel=1&border=1
The good news is, "two prototypes were built, and both still survive," as Wikipedia notes. One is the National Museum of the United States Air Force, near Dayton, Ohio. The other is at the Strategic Air and Space Museum in Ashland, Nebraska.
(High five: Adam Stanhope)