Sitting resplendent in the Arizona sun is the oldest surviving Constellation in the world. The tenth airframe to move down the Lockheed production line at Burbank. California. She was originally built for the U. s. Army as a Model C-69-5-Lo, and delivered in 1945. TWA purchased the airplane in 1948. Christened "Star of Switzerland" and modified to an 049 model, Fleet Number 517 accumulated over 37,000 flying hours before being sold in 1961. After being operated by several owners, the graceful Connie was retired and turned over to the Pima Air Museum at Tucson, and placed on permanent dispaly, following renovation by a team of volunteer TWA employees who gave over 7000 hours of their time to restore the plane's original TWA colors. Ship 517 is now a main attraction at the Museu, located south of the city near Davis - Monthan Air Force Base.