Fleetwings BT-12 Sophomore
The Fleetwings BT-12 Sophomore, also known by the company designation Model 23, was a 1940s all-metal basic training monoplane built by Fleetwings for the United States Army Air Forces. Only 24 production examples of the type were built before the contract was cancelled.
Source: Wikipedia — Fleetwings BT-12 Sophomore (CC BY-SA 4.0)