Dr. Zefram Cochrane, the inventor of warp drive, built this warp ship inside a missile complex in Bozeman, Montana. The ship was initially a United States Air Force nuclear missile with a titanium casing. It took Lily Sloane six months to scrounge enough titanium to build the four-meter cockpit of the Phoenix. Dr. Cochrane was the pilot, and Lily Sloane was initially intended to be one of the co-pilots. William Riker and Geordi La Forge (both of the USS Enterprise-E, from 2373), however, served as the crew.