In 1940, the Germans designed an advanced medium airliner for Lufthansa that featured variable-incidence pivoting wings which would provide a smooth even-level flight for its 18 passengers. Had Germany won WW2, it would have been the standard medium haul airliner. But since the war had started, Germany had other combat aircraft to work on, so the French factory of Brequet was tasked with building the first prototypes. They completed two, the first of which flew in August 1944 before the Germans retreated and left the advanced aircraft in Frech hands. Despite its advanced features, the French did nothing with the aircraft, which is sad... it would have had a range of 1000 miles at 300 mph with great comfort for the time. Although the French used captured or abandoned German military aircraft postwar, the civilian Bv-144s were scrapped...

http://www.warbirdsresourcegroup.org/LRG/images/bv144-main.jpg http://www.airwar.ru/image/idop/cww2/bv144/bv144-2.jpg