Bell X-5 (signed) Foreign Military The Shuttle takes off vertically

The Shuttle takes off vertically under the power of three Rocketdyne main propulsion engines

but WW II ended before the aircraft could be employed in combat

In 1998 the Air Force initiated the privately run Introductory Flight Training which uses private flight schools to screen pilot candidates

students complete 254

and enclosed cockpits

Bell X-5 (signed) Foreign Military The Shuttle takes off verticallyThe X 5 was the world's first airplane to vary the sweepback of its wings in flight. It was built to prove the theory that by increasing the sweepback of an airplane's wings after takeoff, a higher maximum speed could be obtained, while still retaining low takeoff and landing speed and higher rate of climb with the wings swept forward. The X 5 was based upon the design of a Messerschmitt P. 1101 airplane discovered in Germany at the end of World War