Twin Otter
PETERSON AIR FORCE BASE, Colo. -- One of three Air Force owned UV-18B “Twin Otter” aircraft lands at Peterson AFB on Jan 27, 2016 carrying a pilot, copilot and up to 17 USAF Academy cadets in parachute training. It has crew and passenger oxygen systems, a cruise speed of 150 knots, a service ceiling of 25,000 feet and a range of 700 miles. (U.S. Air Force photo by Rob L. Bussard)