OK now, here's a little excercise, think up an official name for the VC-10.
I'll start with a continuation of the Vickers "V" theme (Viking, Varsity, Valetta, Viscount, Vanguard et al ) and go for "Viceroy".
I'm sure someone can do better than that.
To those of us who drove it the Vanguard was affectionately known as the 'Vibrator'. The freighter version (Merchantman) was, of course, the 'Guards Van'.