US Navy (USN) Aviation Electrician's Mate AIRMAN Apprentice (AEAA) Justin W. Walker checks resistance on a circuit card for a S-3B Viking aircraft electronic control assembly, ensuring the equipment is within safety standards. AEAA Walker is aboard the USN aircraft carrier USS JOHN F. KENNEDY (CV 67) currently conducting carrier qualifications in the Atlantic Ocean

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.