Probably because there is no quick way of saying:
"The most beautiful airliner in the world, second only to the refinement of Concorde, the Vickers VC-10 was one of the few machines that looked as good on the ground as she did in the air, actually that was one of the reasons you wanted to fly in her - because she looked so elegent, more than that, she looked
right and there is the old engineering saying that if it LOOKS right - then it IS right - which certainly pertains here, although I have to say that not ALL the liveries showed her off best - for me it was the 'classic' BOAC with the Blue nose slipping back to the long blue cheat line on the windows and the clear BOAC lettering that made her look the best, not to mention the right angle to show off the tail and so there can be no doubt that she really is the Queen and that's even before the Conways wake up!"
or VC-10 for short.