KC-10A - Extending the mission

TRAVIS AIR FORCE BASE, Calif.—Staff Sgt Ernest Crider performs an operations check on an emergency oxygen mask and goggles as part of his preflight checks on the flight deck of a KC-10A Extender. The aircraft, including fuel and crew, weighs 370,000 pounds at takeoff and will perform air refueling training over the western region of the United States. Sergeant Crider is a flight engineer with the 6th Air Refueling Squadron here. (U.S. Air Force photo by Master Sgt. Lance Cheung)