thomas coal depot - its great

Has only one motor and 3 Tops that change over as the engine runs around the track.
12 piece track with Thomas, Percy, Terrence and assorted towers. Once the trains and loader are in position set the motor on the tracks and sit back as Percy delivers a load of coal from the dispenser and dumps it near the fillling tower, reverses and changes the motor with Thomas who changes motor with Terrence.
Then Terrence the Digger scoops up the coal Percy dumped and puts it in the loader, that fills Thomas. Terrence then changes motor with Thomas. He does this cool 3-point turn and reverses up the hill to dump the coal in the dispenser then goes down, another cool turn and he changes with Percy to start all over again!