Class of Chinese 2-8-2 locomotives
SY 上游 SY-1721 idling at the Tangshan Works, December 2005
Specifications Configuration: • Whyte 2-8-2 • UIC 1′D1′ Gauge 1,435 mm (4 ft 8+ 1 ⁄2 in )Driver dia.1,370 mm (53.94 in)* Length 21.6 m (70 ft 10+ 3 ⁄8 in)Loco weight 142 tonnes (140 long tons; 157 short tons) Fuel type Coal Water cap. 25,000 L (6,600 US gal) Boiler pressure 200 psi (1,379 kPa) Heating surface: • Firebox 4.5 m2 (48.44 sq ft) Cylinders 2 Cylinder size 580 mm × 710 mm (22.83 in × 27.95 in) Valve gear Walschaerts Valve type Piston
Performance figures Maximum speed 80 km/h (50 mph)* Tractive effort 207.66 kN (46,680 lbf)
Career Disposition 42 preserved
China Railway SY is a (Chinese : 上游 ; pinyin : Shàng Yóu ; lit. 'Forward Position') 2-8-2 Mikado locomotive operated by the China Railway. It was built mostly by Tangshan Railway Vehicle between 1960 and 1999.