The Douglas XB-19 project was intended to test flight characteristics and design techniques for giant bombers. Its construction took so long that competition for the contracts to make the XB-35 and XB-36 occurred two months before its first flight. https://www.destinationsjourney.com/historical-military-photographs/douglas-xb-19/ #aviation #DouglasXB19 #aeroplane #airplane #bomber #USAAF #USAAC #USAF