Flipped

152 has been turned upside down to begin work on detailing the chassis.

One of the distinctive features of these two obs carriages is he twin vacuum brake cylinders, which are mounted opposing each other at a jaunty angle.

All the other superbarns have single ones which are set vertically, as far as I can tell.

These are made with a length of styrene tube which has a thick cap added at one end, and then filed into a very shallow dome.

The other end has a plain cap before a piece of strip is glued around the outside to form a ring, and the tanks are then mounted on some small blocks to give them the angle.

The have some very circuitous pipework running around them, but that’s a topic for another post.