Add Yahoo as a preferred source to see more of our stories on Google. B 29 GettyImages 517220374 Bettmann Getty Images B 29 GettyImages 517220374 Bettmann Getty Images The history of aviation is wild.

10 amazing aircraft they only built once The MiG was intended to prove technologies for an advanced heavyweight tactical fighter version. But by the time the 1.44 had flown in 2000, the USSR was no ...

These are an ongoing series of extraordinary aircraft existing at the extreme cutting edge of technology. The “X-planes” are radical, often bizarre, machines that push the boundaries of what is ...