I'd say Viscount. It mentions fuel trimmers which the Dart had. The Tyne (or at least the ones I flew) had condition levers.
Also, doesn't mention the start in low ground idle, then the acceleration of the engine up to high ground idle. A feature if the Tyne.
And, wouldn't the Vanguard have had CSDs, hence "check generators charging" might not be quite right.
Hello BSD, I have had a better look at things and have asked around in the Viscount enthusiast community and it looks like you are correct. That's one puzzle solved for me! I actually did know about the Tyne's low/high ground idle feature thanks to having been on the flight deck for an engine run once. I just didn't think to look for it in the checklist. As for the Viscount and its Darts... I'm even less knowledgable (so that basically equals zero....).
