Grumman TBM-3E Avenger, NL53503 is operated by the Rocky Mountain Wing of the Confederate Air Force at Grand Junction, Colorado. Its Grumman construction number is 53503. It flew with the Royal Canadian Navy as 315. It was operated by the Simsbury Flying Service from 1963 to 1970, when it was first acquired by the Confederate Air Force. It was built in 1948 and has a Wright radial 14-cylinder engine displacing 2603 cubic inches.