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Japanese 0-6-0 type steam locomotive
| Class 3900 |
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 3900 type locomotive |
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| Specifications |
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Configuration:
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| • Whyte | 0-6-0T |
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| Gauge | 1,067 mm (3 ft 6 in) |
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| Driver dia. | 900 mm (2 ft 11 in) |
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| Wheelbase | 3.6 m (11 ft 10 in) |
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| Length | 9.1 m (29 ft 10 in) |
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| Loco weight | 35.5 t |
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| Fuel type | Coal with heavy oil |
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| Fuel capacity | 1 t |
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| Water cap. | 3.5 m3 (925 US gal) |
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| Firebox: | |
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| • Grate area | 1.73 m2 (19 sq ft) |
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| Boiler pressure | 176.5 lbf/in2 (12.41 kg/cm2) |
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| Heating surface | 75 m2 (807 sq ft) |
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| Cylinders | Two |
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| Cylinder size | 39 cm × 50 cm (15 in × 20 in) |
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| Valve gear | Walschaerts |
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| Career |
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| Retired | 1922 |
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| Disposition | All scrapped |
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The JGR Class 3900 was a type of 0-6-0T steam locomotive used on Japanese Government Railways. The locomotives were imported from Germany for the Abt rack system railway built in Karuizawa, Nagano.[1]
- ^ a b Naotaka Hirota Steam Locomotives of Japan (1972) Kodansha International Ltd. pp.46,49&89 ISBN 0-87011-185-X
 Imperial Japanese Railway Steam Locomotives |
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| Tank | | Four-driver (A) | |
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| Six-driver (B) | |
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Abt-type
Six-driver (C) | |
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| Tender | | Four-driver (D) | |
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| Six-driver (E) | |
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| Eight-driver (F) | |
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