The U-10A Super Courier, originally developed for the CIA, entered the Air Force inventory in 1958. With 231 square feet of wing surface area and large flaps covering three-fourths of the wing's trailing edge, it had superb Short Take-Off and Landing capabilities. The aircraft carried up to four passengers and was used as a counterinsurgency troop carrier, for psychological warfare operations, airborne relay station duty, and search and rescue. Modifications included a drop ramp, floats for water landings, and airborne speakers. This plane was assigned to Hurlburt Field from 1964 until its retirement in 1971.