EC-47 / USAFDouglas EC 47 USAF model. For the Indochina war, the C 47 continued her transport duties but took on additional missions, such as electronic reconnaissance and gunship. The electronic reconnaissance aircraft came in three styles, the EC 47N, EC 47P and EC 47Q. Their mission was to collect communications intelligence (COMINT) by intercepting enemy communications and conduct airborne radio direction finding (ARDF) against those communications to locate