THOMAS & FRIENDS™ NARROW GAUGE YELLOW RHENEAS ENGINE (diecast construction) - Runs On N Gauge Track. Rheneas is a tough little engine who works hard even if it means some scratches and scrapes. Rheneas has a fine sense of humor and keeps the engines at the Blue Mountain Quarry smiling. When the Railway was in jeopardy of closing, it was Rheneas' heroics which saved the line, and brought his passengers home, earning him the nickname Gallant Old Engine. Whilst working at the Blue Mountain Quarry, Rheneas' paintwork was severely scraped after becoming a runaway after having gone too fast over the collapsing Blondin Bridge. This resulted in the brief period when he was painted yellow. He is based on a Fletcher, Jennings & Co. 0-4-0ST narrow gauge engine. Bachmann carefully reproduces your favorite Thomas & Friends™ characters. Narrow Gauge Thomas & Friends™ products are HO models that run on N gauge track. All Thomas and Friends Narrow Gauge locomotives feature electric drive mechanisms, highly detailed Die Cast construction, all-metal wheels, and narrow gauge hook and loop couplers. A narrow-gauge railway is one where the spacing between the rails is less than the standard (4 ft 8 1⁄2 in) spacing found on typical railroads. Historically, narrow-gauge railways are most often found in mining, logging, light industrial, and light passenger service.