The Piper PA-28 Cherokee is a family of light aircraft designed for flight training, air taxi, and personal use. It is built by Piper Aircraft. All members of the PA-28 family are all-metal, unpressurized, single-engined, piston-powered airplanes with low-mounted wings and tricycle landing gear. They all have a single door on the copilot side, which is entered by stepping on the wing. The PA-28 series competes with the Cessna 172, the Grumman American AA-5 series, and the Beechcraft Musketeer.