I think the 748 actually lasted longer ( are there still a couple in Canada? ). I can’t remember who mentioned a F27 but I’m fairly sure one dev did.
Edit: both hs748 and F-27s still in use - and of course there’s ATPs too. The F-50 is a bit further removed from the F-27 than the ATP is from the 748 I think.
Viscount is the one I want. Iconic - and popular - trailblazer.