This week in Edwards history Published Sept. 12, 2017 By 412th Test Wing Public Affairs EDWARDS AIR FORCE BASE, Calif. -- On Sept. 15, 1942, contractor personnel were removed from the Materiel Center Flight Test Site prior to the arrival of the secret XP-59 and a group of 11 Bell Aircraft Corp. employees took over the site. (Edwards History Office file photo) Photo Details / Download Hi-Res