[QUOTE=cwl;36061424].... JNB-LHR (did this have a technical stop on route at the time?). Which would have been quite a tier point run if such things existed at the time.

BA to/from JNB daily, all went via NBO, with an additional stop in ZRH (two days a week)

SAA - remember them? went around Africa via somewhere like Las Palmas as no overflying permitted. I think their 747SP could do LHR non-stop.