|  click on photo for more images
 |  | Using
            a Stinson design acquired in 1948, Piper introduced its first
            production twin-engined, four-place executive aircraft in
            1954.  The prototype first flew in 1952.  2,200 Apaches
            were produced through 1958. In 1960, Piper upgraded the Apache with more
            powerful engines and a swept vertical tail.  The new aircraft
            was named Aztec.  Over 4,800 Aztecs were built. |