Alon A-4
 The Alon A-4 is a prototype American light aircraft of the 1960s. Alon INC. of McPherson Kansas was formed by two former executives of Beechcraft in 1963 and had initially built an improved version of the ERCO Ercoupe as the Alon A-2. In 1964 Alon started design of an all-new four-seat light aircraft the Alon Four (or Alon A-4). It was a conventional singled-engined low-winged monoplane of all-metal construction with a fixed (non retractable) tricycle landing gear undercarriage.