The Lockheed Constellation ("Connie") is a propeller-driven, four-engined airliner built by Lockheed Corporation between 1943 and 1958 at Burbank, California. 856 were built in numerous models, all with a triple-tail design and dolphin-shaped fuselage and most powered by four 18-cylinder Wright R-3350s. The Constellation was used as a civil airliner and as a military and civil air transport, seeing service in the Berlin Airlift and the Biafran airlift. It was the presidential aircraft for Dwight D.