Why would South Africa seek Victor B.2 aircraft if not for a nuclear program?
Short answerThey offered valuable tanker capability and substantial prestige for a government keen to acquire major military equipment.
NotesThe Victor B.2 was a useful tanker, so interest in the aircraft does not by itself prove a nuclear mission. Long-range aerial refuelling would give South Africa a flexible support capability. The large bomber-derived airframe also served as a conspicuous marker of national status. Its appeal lay in the practical capability and the prestige of acquiring it.