 While the aircraft is about 95 percent authentic, recreating the configuration in 1945 when it rolled off the assembly line, concessions to technological improvements such as a modern radio and avionics suite are incorporated to meet the current airworthiness requirements.Sent to the EAA's Kermit Weeks Flight Research Center in Florida in 1993, the aircraft was prepared for its first tour, which began in 1994.At present, of the 48 surviving B-17s, there are only 11 such B-17s still flying, with "Aluminum Overcast", the high-time leader, already logging 6,000 flight hours by 1969.