T.A.P. – Transportes Aéreos Portugueses – was founded as a Special Department of the Secretariat for Civil Aviation on 14th March 1945. They operated Lockheed Super Constellations and these were superseded by Viscounts from BEA which were used on the London – Lisbon route. After BEA. began Comet services in early 1960 4Bs were switched to cover T.A.P. services between Madeira and London.