The Lockheed Constellation is a four-engine propeller-driven airliner that was first introduced in the late 1940s. Known for its distinctive dolphin-shaped fuselage and elegant design, it was primarily used for commercial airline service and military transport. The aircraft could carry up to 100 passengers and was renowned for its speed and long-range capabilities. Developed by Lockheed Corporation, the Constellation played a significant role in the post-World War II aviation boom. It was used by several major airlines and military branches, including the United States Air Force. The Constellation's production ended in 1958, but it remains an iconic symbol of vintage aviation.