RITZ AIRCRAFT STANDARD A · The Encyclopedia of Aircraft David C. A Standard A shortly after completion (Lightsportaircraftpilot com) Country of origin: United States of America Description: Single-seat light sporting aircraft Power Plant: One 16 kw (22 hp) Zenoah G-25 single-cylinder, two-stroke, air-cooled engine Specifications: Wingspan: 11 m (36 ft)