Rear Adm. Nora Tyson, commander of Carrier Strike Group (CSG) 2, fires a .50-caliber machine gun.
ATLANTIC OCEAN (Sep. 25, 2010) Chief Gunner's Mate Barry J. Cramer, assigned to the weapons department of the aircraft carrier USS George H.W. Bush (CVN 77), observes Rear Adm. Nora Tyson, commander of Carrier Strike Group (CSG) 2, fire a .50-caliber machine gun during a live-fire exercise. (U.S. Navy photo by Mass Communication Specialist Seaman Kevin J. Steinberg) File# 100925-N-6632S-286
Aircraft carriers are warships that act as airbases for carrier-based aircraft. In the United States Navy, these consist of ships commissioned with hull classification symbols CV (aircraft carrier), CVA (attack aircraft carrier), CVB (large aircraft carrier), CVL (light aircraft carrier), CVN (aircraft carrier (nuclear propulsion) and CVAN (attack aircraft carrier (nuclear propulsion). The first aircraft carrier commissioned into the United States Navy was USS Langley (CV-1) on 20 March 1922.