The Capelis XC-12 was a failed 1933 aircraft design that most notably was used as a prop in the films Five Came Back, The Flying Tigers, The Falcon in Danger, and Immortal Sergeant.

On April 15, 1938, the XC-12 suffered minor damage from a forced landing after running out of fuel while flying over Fresno, California.

These tended to vibrate loose, requiring tightening or replacing every few flights, constituting a safety hazard that would later ground the aircraft.

Used as a full-size prop, the transport appeared only in ground roles in RKO's feature films made during World War II; flying sequences used a scale XC-12 shooting miniature.

The aircraft became a RKO back lot relic, falling into worse repair during the 1940s until it was completely scrapped some time around 1950.