Atlas ACF hoppers

The entry covers a variety of Atlas ACF hoppers: the 5700/5800 cuft ACF hoppers and the Pressureaide hopper:

All of these hoppers use the scale box with the hat:

The floor of the Pressureaide hopper is made of slippery engineering plastic, so I added a dab of canopy glue to prevent box rotation. The other hoppers did not require this. I swapped the trucks for Atlas/BLMA 100T trucks with FVM 36" wheels. I had to trim the stabilizing pins slightly on the B end of the 5700/5800 hoppers.