[PHOTOS] The World's Most Weird Looking Aircrafts You'll Ever See...

The Ryan X-13 Vertijet, built by Ryan Aeronautical in 1955 for the US Air Force, would take off vertically, fly horizontally and land vertically.

Nine wings, eight engines, room for one hundred passengers. It even flew, briefly, in 1921.

M2-F1 lifting body in towed flight, it was the first of five designs of lifting body, in which aerodynamic lift is derived from the shape of the fuselage rather than from wings.,

The Russian-built Mil V-12 is the world s largest helicopter, 28 metres in length and 4.4 metres in width and height and pair of rotors were mounted on transverse wings

The X-48B Blended Wing Body aircraft model - prototype, a cross between a conventional plane and a flying wing design, was created based on a need for a multi-role, long-range and high-capacity military transport aircraft.

The Super Guppy Turbine (NASA's B377SGT), super-sized cargo plane flown since 1980 and acquired by NASA in 1997, is taking off from Edwards Air Force Base en route to to its home base, near the Johnson Space Center in California.

The X-Wing was an experimental hybrid helicopter/fixed wing aircraft built in 1986 by helicopter maker Sikorsky for NASA.