| FD | |
| Powertype: | Steam |
| Builder: | Voroshilovgrad Locomotive Factory[1] |
| Builddate: | 1931-41, conversion to standard gauge : ~1958 |
| Totalproduction: | exported to China : 1054 |
| Whytetype: | 2-10-2 |
| Driverdiameter: | 15002NaN2 |
| Length: | total: ≈29.070NaN0 (loco + tender) |
| Firearea: | 7.03m2 |
| Cylindercount: | 2, outside |
| Valvegear: | Walschaerts |
| Maxspeed: | 850NaN0 |
| Retiredate: | 1967-1985 |
| Preservedunits: | 3 |
| Scrapdate: | 1967-1989 |
| Disposition: | Most Scrapped (3 preserved) |
The China Railways FD class of locomotives were 2-10-2 steam locomotives of the FD locomotive type imported from the Soviet Union and regauged for use in China.
The FD class locomotives were imported from the Soviet Union to China from 1958 to provide main line freight motive power for the Chinese railways. Over 1000 units were acquired and remained in service until 1985.[1]
When imported the class were designated YH (YouHao meaning 'friendship'), but after the breakdown of Sino-Soviet relations during the Cultural Revolution (see Sino–Soviet split) the class were renamed FX (FanXiu meaning 'anti-revisionist'). In 1971 the class were returned to the original Soviet designation of 'FD' (after Felix Dzerzhinsky).[1]