Carrier onboard delivery

Carrier onboard delivery (COD) is the use of carrier-based aircraft to transport personnel, mail, supplies and high-priority cargo such as replacement parts, from shore bases to an aircraft carrier at sea. Several types of aircraft, including utility helicopters and tiltrotor aircraft, have been used by navies in the COD role. The Grumman C-2 Greyhound has been the United States Navy's primary fixed-wing aircraft for COD operations since the mid-1960s.