Most Successful UK Locomotive Design

[Kali]

IIRC BR wanted more 59s rather than 60s...

The HST is an odd thing to define - it's more than just the train itself, when it appeared it was a concept of redefinition of rail travel. Admittedly a lot of that is marketing and really the only major step up from aircon Mk2s on the services it replaced was the speed, but it was something genuinely new and different and felt like progress. I have no idea what it must have felt like for people who could remember steam.

 

[EE8CSVTMkIII]

I would go for the HST - though it may not have been around for as long as some others, it did rescue what was an ailing public company, turning around its fortunes and image. A dashing piece of invention (low tech as a diesel may be to some people) that to me defines another milestone in the progress of British technology - a solid proof that you don't necessarily have to go electric to attain high speed! And it's still around!