An Operating Hump-Yard Retarder
3/16 "S"cale Railroading 1992-10/11
The author describes how he developed a scale working model of the hump yard retarder for his 32-foot hump yard modules. Includes model photos and construction diagrams, as well as a parts list.
The Bailey Bridge System
NASG Dispatch Volume 14, Number 6, December 1991
The author describes how he built a strip of Masonite hardboard, to which he fastened 3" track pieces as a quick way to install the bridge rail pieces between the modules of his yard.