I have been busy with a couple of BLI hoppers to supply my power station, and I wanted to represent fulls going in and empties coming out - so here’s how I put my BLI hoppers to work.
The steam switcher pushes the full hoppers into the power station
The loads are then removed from a slot in the back of ther building using a steel implement - in this case a small screwdriver - out of sight of the viewer.
There is a captive magnet beneath the coal load. I had to file a lot of plastic from the sides of the coal to get a sloppy fit into the hopper
The empty hoppers are then pulled back out of the power station ready to be taken away for the next load.
Jon