ملف:North American L-17A USAF.jpg

A U.S. Air Force North American L-17A Navion (s/n 47-1347, marked as 48-928) at the National Museum of the United States Air Force. The Ryan Aeronautical Company acquired the design in 1948, and built approximately 1,200 examples over the following three years. Ryan designated the aircraft the Navion A with a 205 hp (153 kW) Continental E-185-3 or -9 and, later, the Navion B with 260 hp (194 kW) engines of either the Lycoming GO-435-C2, or optionally the Continental IO-470 engine. The Navion A became the basis for the military L-17B. After 1962, the L-17 was designated U-18.