Air date: 2015-03-24

Runtime: 46 min

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

Air date: 2015-03-31

Runtime: 46 min

This double-decked monster was designed to carry 800 passengers and revolutionise the highways of the sky, so why did it take 17 years to lift off?

Air date: 2015-04-07

Runtime: 46 min

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