What naval aviation branch, known as COAN, utilizes the Gringo-Gaucho maneuvers along with the US Navy?
Gringo-Gaucho: Gringo-Gaucho are a contingent set of maneuvers performed between the Argentine Naval Aviation and United States Navy's aircraft carriers. Argentine Naval Aviation: The Argentine Naval Aviation (Spanish: Comando de Aviación Naval Argentina, COAN) is the naval aviation branch of the Argentine Navy and one of its four operational commands.
Argentine Naval Aviation