In the postwar period, the DH-4 demonstrated its versatility. It was the principal aircraft used by the U.S. Government when air mail service began in 1918. The L.W.F. (Lowe-Willard-Fowler) Company of College Point, New York, converted DH-4s to single-seat DH-4B mailplanes, with a compartment for 225 kg (496 lb) of mail replacing the front seat. For night flying, special flame-supressing exhaust s

  • By Dayton-Wright Airplane Co.
  • Credit: Transferred from the U.S. War Department, Bureau of Aircraft Production
  • Rights: CC0