Aviation Structural Mechanic 2nd Class Brandon Fournier, from Fall River, Mass., tests an auxiliary power unit accumulator.
PACIFIC OCEAN (Mar. 27, 2009) Aviation Structural Mechanic 2nd Class Brandon Fournier, from Fall River, Mass., tests an auxiliary power unit accumulator in the hydraulics shop aboard the Nimitz-class aircraft carrier USS John C. Stennis (CVN 74). The power unit accumulator is used to start jet engines,. John C. Stennis is on a scheduled six-month deployment to the western Pacific Ocean. (U.S. Navy photo by Seaman Eboni C. Cameron) File# 090327-N-0096C-014
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.