sentences:  NAC Operations is the flight operations and charter division.NAC operates a South African network of offices, its main base is Lanseria Airport, with office hubs at Cape Town International Airport, Durban, Grand Central Airport, Wonderboom Airport and Rand Airport.NAC also has businesses further afield in Botswana Sir Seretse Khama International Airport, Gaborone and internationally, Awesome Flight Logistics in Perth, Australia and Specialized Aircraft Services in Wichita, USA.