bossan
I flew the VC10 from 1969 to 1975. It was a lovely aircraft to fly and navigate (we also had to have a Flight Navigators Licence in those days).
It was designed to operate from 'hot and high' airfields in Africa. It could depart from Entebbe (the runway was much shorter then) and make it non-stop to London. However, it didn't have either the range or the fuel economy of the 707.
Dave