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.

Discovery's popular "Mighty" franchise ("Mighty Ships") continues with "Mighty Planes," which takes to the skies and explores the most impressive aircraft in the world. Each episode highlights one incredible plane, from the world's only flying eye hospital to the largest passenger jet ever built, as it takes on a high-stakes mission from beginning to end. "Mighty Planes" brings viewers unprecedented access to the planet's most impressive aircraft with in-depth looks at the science of aviation and the lives of the people responsible for making it all happen.