sentences:  The agreement also included leasing of aircraft.Between November 30, 1960 and 1965 Panair operated with TAP-Transportes Aéreos Portugueses the "Voo da amizade" (), between São Paulo-Congonhas, Rio de Janeiro-Galeão and Lisbon, with stops in Recife and Sal, using a dedicated Douglas DC-7C aircraft bearing the names of both airlines, TAP flight numbers and crew of the two airlines.Only Brazilian and Portuguese citizens or foreigners with permanent residence in Brazil or Portugal could purchase tickets for those flights, which were extremely popular due to their low fares.