martyn dawe wrote:
....
Although there is (well, was 10 years ago) a turntable in the
[W&C] depot, but not big enough for a whole carriage.

What's the point of that, then?
....
The turntable was a for coal wagons when the line had a coal fired power
station, the wagons cam down on a separate lift.

I can just just about believe you might need to turn coal wagons
round, if the coal has to be tipped out of one end... but I can't
believe said power station would need the coal to be delivered
along the Drain!

Have I missed something, or are you winding us up?

Henry