U.S. Air Force STAFF SGT. Nick Pomonis, a crew chief assigned to the 95th Air Maintenance Unit, Tyndall Air Force Base (AFB), Fla., prepares to launch an aircraft during exercise William Tell 2004 on Nov. 9, 2004, at Tyndall AFB. This is the 50th Anniversary of the William Tell competition, an exercise that tests an aircrew's ability to perform under combat conditions. (USAF PHOTO by STAFF. SGT Tanika Bell) (Released)