Lower surface color in the SEA (South-East Asia) camouflage scheme introduced by the USAF TAC (Tactical Air Command) shortly after the outbreak of the Vietnam War and used until the 1980s.
Lower surface color used in the camouflage scheme (based on the US SEA scheme) introduced by the FAP (Força Aérea Portuguesa – Portuguese Air Force) in the 1980s and applied to A-7P, Fiat G.91, Alpha Jet, SA 330, Alouette II & III, AW101 etc.
Lower surface color in the camouflage scheme (based on the US SEA scheme) used by FAA (Fuerza Aérea Argentina – Argentine Air Force) during the Falklands (Malvinas) conflict (Mirage IIIEA, IAI Dagger, C-130/KC-130).
Also used in some USAF aggressor schemes (F-15C).