The Piper PA-28 Cherokee is a family of two-seat or four-seat light aircraft built by Piper Aircraft and designed for flight training, air taxi and personal use. The PA-28 family of aircraft comprises all-metal, unpressurized, single-engined, piston-powered airplanes with low-mounted wings and tricycle landing gear. They have a single door on the right side, which is entered by stepping on the wing. Piper has created variations within the Cherokee family by installing engines ranging from 140 to 300 hp (105–220 kW), offering turbocharging, retractable landing gear, constant-speed propeller and stretching the fuselage to accommodate six people.