The de Havilland CanadaDHC-6 Twin Otter is a Canadian 19-passenger STOL (Short Takeoff and Landing) utility aircraft developed by de Havilland . The aircrafts fixed tricycle undercarriage, STOL abilities and high rate of climb have made it a successful cargo, regional passenger airliner and MEDEVAC aircraft. In addition, theTwin Otterhas been popular with commercial skydiving operations, and is used by the United States Army Parachute Team and the United States Air Forces 98th Flying Training Squadron. (source: Wikipedia).