DAYTON, OHIO: A prototype of a widely used Air Force transport plane is coasting into retirement in Ohio after a two-decade career that included appearances in six movies.

The Dayton Daily News reports the hand-crafted prototype of the C-17 Globemaster III made its final landing Wednesday at the National Museum of the U.S. Air Force. The prototype will go on display at the museum near Dayton in June.

Today, about 215 of the planes are used to transport U.S. troops and cargo in locations such as Afghanistan and Iraq. They’re also often used to carry injured soldiers to hospitals.

The C-17 prototype first flew in 1991 and was long used as a test plane. It also appeared in Hollywood films, including the “Transformers” and “Iron Man” movies.