1940 American Champion AT-6Single-Engine Piston Aircraft • Prineville, OR, USA

This 1940 North American AT-6, registered as N56737, is a historically significant aircraft with a total airframe time of 2,985 hours. It is presented as a restoration project, having been in storage since 2004, which is also the date of its last annual inspection. Research indicates it served as a U.S. Army Air Force pilot trainer and its civilian logs date from 1968. At the time of its storage, it was noted as the world's oldest airworthy and flying AT-6.

The aircraft is powered by a Pratt & Whitney R-1340-53H1 radial engine producing 600 horsepower, which has 598 hours since major overhaul (SMOH) against a 1,600-hour TBO. The Hamilton...