Boeing Unveils Stratoliner

(12/31/38) On December 31st, Boeing Aircraft flight-tested its newest aircraft– "The Stratoliner." The aircraft, the first to have a pressurized cabin, could fly higher than any other passenger aircraft. Its cruising altitude was between 14,000 and 20,000 feet. TWA placed initial orders for the planes, and was the only airline to fly them before the war.