Class R (31) 0-6-0T
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| Origin | FMSR | Builder | Baldwin, USA |
| FMSR Class | R | Cylinder | 16 x 20 inches |
| FMSR Number range | 3-12, 14, 35 | Boiler Pressure | 160 psi |
| KTM Class | 31 | Driving Wheel Diameter | 42 inches |
| KTM Number range | 311.01-311.10 | Water Capacity | 1,000 gallons |
| Introduced | 1920 | Weight Full | 38 tons |
| Extinct | 1964 | Tractive Effort | 17,554 lb |