American Airlines Douglas DC-3 "DST" NC 14988 in flight, ca. 1936-1942. The plane has eight windows in its side and a long window over the cockpit at left. Roads sector off the square farms on the land below.; "This airplane was the first DC-3 and was configured as the first Douglas Sleeper Transport (DST). It was manufactured by Douglas Aircraft Company, Santa Monica, CA as NX-14988 in December 1935 under ATC# 607. It was assigned S/N 1494 with two Wright Cyclone SGR-1820-G-5 engines (S/N R-22863; L-22862). It was a 31-place airplane.After testing, it sold to American Air Lines, Chicago, IL on April 28, 1936 and was approved for "NC" registration on May 4, 1936 with 112.5 flight hours... As WWII spooled up, on May 25, 1942 the airplane was sold to the Defense Supplies Corp., Washington, DC, then to the War Department, Washington, DC on July 21, 1942. Its Civil Aeronautics Administration registration was cancelled and it was given USAAF serial number 42-43619 and operated under U.S. Army insignia. It was wrecked at Knobnoster, MO October 15, 1942" -- unknown author; www.dmairfield.com