180628-N-IT566-075 PANAMA CITY, Fla. (June 28, 2018) A Seabee assigned to Naval Mobile Construction Battalion (NMCB) 1 uses a concrete saw to cut around a sprawl during an airfield damage and repair experiment at Tyndall Air Force Base in Panama City, Fla. NMCB-1 tested different types of construction techniques and materials to improve the time required to repair a runway after an attack. (U.S. Navy photo by Mass Communication Specialist 1st Class David Kolmel/Released)