Dubbed the “Clipper Flying Cloud,” the Stratoliner was the first pressurized airliner that enabled passengers to fly at 20,000 feet above bad weather. It has 33 seats, no overhead bins and only 10 were produced due to World War II. A group of 30 Boeing volunteers and retirees worked for over six years to restore the last remaining 307 Stratoliner to fly-worthy condition. Just months after it was finished, the airplane was forced to ditch in Seattle’s Elliott Bay following a loss of engine power during a crew proficiency flight. The airliner was restored again and was sent to its new home at the Steven F. Udvar-Hazy Center outside of Washington, D.C.