Learning how hybrids work
SHAW AIR FORCE BASE, S.C. -- Tech. Sgt. Spellmon Quinn (left), 20th Logistics Readiness Squadron vehicle technician, and 2nd Lt. Zachary Buckallew, 20th LRS vehicles maintenance flight commander, talk about the performance of the electric motor on an R-11 hybrid refueler April 25. The environmentally friendly hybrid is the only one of its kind in the Air Force. The 72,000-pound hybrid is undergoing a one-year test at Shaw to see how much money it saves on fuel, maintenance and other cost measurements. (U.S. Air Force photo/Senior Airman John Gordinier)