Full-length view of Lieutenant Albert Delmer Prochnow, US Army Air Forces, in uniform, posed standing beside right inboard engine of Boeing B-17G Flying Fortress "The Colonel's Lady" (s/n 42-107171) ...
The Flying Fortress is one of the most famous airplanes ever built. The B-17 prototype first flew on July 28, 1935. Although few B-17s were in service on Dec. 7, 1941, production quickly accelerated ...
Three-quarter length view of Lieutenant Albert Delmer Prochnow (right) with unidentified US Army Air Forces officer (left), both in uniform, posed standing beside right side of nose of Boeing B-17G ...