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Senior Master Sgt. Timothy Nichols, left, discusses fuel consumption with Tech. Sgt. Francisco Guerrero-Vasquez on the flight deck of a C-5B Galaxy on a Pacific channel mission. Both Air Force Reserve aviators are assigned to the 312th Airlift Squadron, Travis Air Force Base, Calif. Nichols is a flight engineer evaluator and Guerrero-Vasquez is a flight engineer. (U.S. Air Force photo/Lt. Col. Robert Couse-Baker)
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