The Brguet 941 was a four-engine turboprop short takeoff and landing (STOL) aircraft that made its first flight on June 1, 1961. The prototype was rigorously tested in France and the United States and was known as the McDonnell 188 on the western side of the Atlantic. Despite its ambitious features, it wasn’t taken on by any commercial airlines. Only a single prototype and four production aircraft were built.