Zaire
Perhaps one of the most controversial air transports for a head of state was that of Zaire leader Mobutu Sese Seko, who leased a supersonic Concorde in the late 1980s and early 1990s. The jet, obtained from Air France, was based at Gbadolite and was not only used for diplomatic missions but also for European shopping trips for the ruler's wealthy family. There was also a Boeing 707 (registration number 9T-MSS) that was used for a while and has been stored in Lisbon since 1996, as well as a Boeing 727 (9Q-RDZ).
Read more about this topic: Air Transports Of Heads Of State And Government