BELL TH-13N SIOUX

In May 1946 the Bell Model 47 became the first helicopter in the world to receive a commercial type certificate. Military interest in the type was strong and the first military versions flew in December 1946. The Model 47 was used by all branches of the U.S. military and by many foreign nations. The HTL-7 is the Navy's trainer version of the Model 47J. The first were delivered 1958 and a total of eighteen were built. In 1962, they were re-designated as TH-13N.