Three U.S. Navy WAVES aircraft mechanics working on a North American SNJ Texan training plane at Naval Auxiliary Air Station Whiting Field, Pensacola, Florida, circa 1943-45. Note their dungaree uniforms, and the plane's Pratt & Whitney R-1340 "Wasp" radial engine. The North American Aviation AT-6 Texan is an American single-engined advanced trainer aircraft, which was used to train pilots of the United States Army Air Forces (USAAF), United States Air Force (USAF), United States Navy, Royal Air Force, Royal Canadian Air Force and other air forces of the British Commonwealth during World War II and into the 1970s. Designed by North American Aviation, the T-6 is known by a variety of designations depending on the model and operating air force. The United States Army Air Corps (USAAC) and USAAF designated it as the AT-6, the United States Navy the SNJ, and British Commonwealth air forces the Harvard, the name by which it is best known outside the US. Starting in...