Caption:
U.S. Bomber Fairly Leaps Into Air Given an extra boost by jet propulsion units, an American A-20 light bomber takes off in a hurry from a U.S. airfield, The units help lift heavily laden planes into the air after only a short take-off run. The U.S. Army Air Force has been experimenting with auxiliary jet propulsion units for four years. November 10, 1944. (Photo by U.S. Office of War Information).