the unmodified ones were called Slowbacks and the modified ones were called Fastbacks.
Thanks for clarifying JW411. I'll bet even the Fastbacks didn't do 500mph though.
I was looking through some old photos yesterday and came across a picture of a Belfast at the Leuchars Airshow in 1974. I had forgotten that the Belfast had an air refuelling capability. I remember reading about C130s refuelling from Victors during the Falklands War and how difficult it was because the maximum cruise speed of the C130 was slightly less than the minimum refuelling speed of the Victor. The solution was to carry out the refuelling manoeuvre in a slight descent. Was the air-to-air refuelling capability of the Belfast ever used and, if so, was it also conducted in a slow descent in order to keep up with the Victor? Or could the Belfast cruise faster than a C130?