Originally Posted by
dixi188
Another thought.
Why were the VC-10 variants 11xx numbers and not 10xx?
The Viscount was effectively the VC-6, -7 & -8, with 6xx, 7xx & 8xx variants, and the Vanguard the VC-9 with 9xx variants.
Probably because it replaced this:
https://en.wikipedia.org/wiki/Vickers_V-1000