That was the original Standard VC10. The Super VC10 traded some of that hot 'n high performance for a bit more load and a bit more range. There is also quite a significant difference between the BOAC Standard VC10s, which never got the benefit of the wing 'fix' and the Standards sold to Ghana and BUA. The main deck cargo door on (most of) those meant that a more varied mix of cargo and passengers could be carried, enabling (later Sir) Freddie Laker to make a profit on the South American routes that BOAC had to let go.