A double-decked monster designed to carry 800 passengers and revolutionize the highways of the sky.

Emerging as a rival to Boeing's 247, the rigorously tested twin-engine DC3 would eventually radicalize the aviation industry in 1934.

Lockheed is tasked with creating a plane invisible to Russian radar, capable of reaching an altitude of 80,000 feet and speeds of Mach 3.2.