Sailors help a shipmate with his oxygen tank during a mass casualty drill.
Summary
ATLANTIC OCEAN (Nov. 10, 2008) Sailors help a shipmate with his oxygen tank during a mass casualty drill aboard the Nimitz-class aircraft carrier USS Dwight D. Eisenhower (CVN 69). IKE is conducting routine training operations. (U.S. Navy photo by Mass Communication Specialist Seaman Derek Poole) File# 081110-N-5033P-040
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.