Mass Communication Specialist 3rd Class Spencer Roberts, left, and Quartermaster 3rd Class Jedediah Walker, both assigned to the aircraft carrier USS Theodore Roosevelt (CVN 71), practice proper body searching procedures.

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.