So what is "narrow?"

[MadHatter]

In South Africa we know it is narrow gauge, but we call it "Cape Standard Gauge" When trains first came to S.A. we also had 4' 8 and 1/2" track, but it would have been too expensive to go inland at the time. Triplex is correct, although we don't call 3'6'' standard gauge, our 2' gauge lines are known as narrow gauge.

That's true about HO scale locos running actually on 4' 8 and 1/2'' gauge tracks , but that's why some people are moving to 12mm gauge. Also have this problem in Train Simulator, lol.

I must say it looks great to see large locomotives on such narrow track- a break from the dinky looking stuff.