Finessing the Fuel
SOUTHWEST ASIA - Senior Airman Levi Martin, 380th Expeditionary Logistics Readiness Squadron fuel laboratory technician, drops a hydrometer in a beaker of jet fuel to test the fuel density Nov. 10, 2009. Airman Martin is deployed from Dover Air Force Base, Del., and grew up in Crestview, Fla. (U.S. Air Force photo/Tech. Sgt. Charles Larkin Sr)