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Class E10
Preserved E10 2 at Ōme Railway Park, May 2006
Type and origin Power type Steam Designer Atsuo Kinugasa, Eiichi Watabayashi Builder Kisha Seizō Serial number 2445 - 2449 Build date 1948 Total produced 5
Specifications Configuration: ​  • Whyte 2-10-4T  • UIC 1'E2'2t Leading dia. 860 mm Driver dia. 1,250 mm Trailing dia. 860 mm Length 14,450 mm Height 3,982 mm Axle load 14.24 t Adhesive weight 70.47 t Loco weight 102.1 t Boiler pressure 16.0 kg/cm² Cylinders 2 Cylinder size 550 mm bore × 660 mm stroke
Career Preserved 1 Scrapped 1962 Disposition One preserved, four scrapped

The Class E10 (E10形) is a type of 2-10-4T steam locomotive built by the Japanese Government Railways (JGR). They were numbered E10 1-E10 5 . They were built in 1948 and designed by Hideo Shima .

Following the end of World War II Japanese Government Railways was prohibited by GHQ from building new locomotives due to financial difficulties. However, an exception was granted for the E10s to replace the ageing JNR Class 4110 locomotives. This was because it was not possible to substitute existing locomotives on the steep gradients of the Ōu Main Line where the 4110s were used.

The boiler of the E10 was a special design based on the JNR Class D52 with the fire grate area reduced by 0.55m.

Five locomotives were manufactured by Kisha Seizō in 1948. They were the last steam locomotives built for Japanese National Railways.

The last examples in regular service were withdrawn in 1962.

Preserved examples

One E10 remains in preservation: E10 2 at Ome Railway Park in Ōme, Tokyo.

See also

• Japan Railways locomotive numbering and classification

References

• Steam Loco in Japan (Jokei Kikansha style book). Kigei Publishing Company. 1963.
• RM Pocket 6: 日本の蒸気機関車 [RM Pocket 6: Steam locomotives of Japan]. Neko Publishing Company. 1994.

1. Steam locomotives of Japan p.278-279
2. Steam locomotives of Japan p.278
3. Steam locomotives of Japan p.175

v t e Japanese Government Railway Steam Locomotives
Tank	Four-driver 10 60 150 160 230 400・500・600・700 860 950 960 1000 II 1060 II 1070・1150 5050 B10 B20 Six-driver 1000 I・1010 1020 1170 1200 1230 1250 1265 1360 2100・2120・2700 II・2900・3500 3300 3360 3380 3400 3700 3800 3800 II C10 C11 C12 Ten-driver 4100 4110 E10
Tender	Four-driver 5050 1060 5060 5200 5300・5400・5450・5480 5500・5630・5650 5900 5950 6050 6100 6120 6200・6250 6400 6500 6700・6750 6760 B50 Six-driver 8250 8350 8360・8380 8400 8450 8500　I 8500 II・8550 8620 8700 8800 8850 8600/8900 C50 18900/C51 8200 II/C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 (proposed) HC51 (proposed) Eight-driver 9550・9580 9600 9900/D50 D51 D52 D60 D61 D62 HD53 (proposed) HD60 (proposed) Ten-driver KE50 (proposed) Mallet 9020 9750・9800・9850
Narrow gauge	Four-driver Ke 100 Ke 110 Six-driver Ke 150 Ke 160 Ke 170 Ke 200 Ke 210

v t e Japanese railway locomotives
Steam locomotives	150 160 500 860 900 950 1070 2120 3080 3150 3380 3800 3900 4100 4110 5100 5500 5700 6120 6200 6400 6700 7010 7100 7170 8150 8250 8620 8700 8900 9550 9600 9700 B20 C10 C11 C12 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 D50 D51 D52 D60 D61 D62 E10
Diesel locomotives	DB10 DB500 DC10 DC11 DD10 DD11 DD12 DD13 DD14 DD15 DD16 DD17 DD18 DD19 DD20 DD21 DD50 DD51 DD53 DD54 DD200 DE10 DE11 DE15 DE50 DF50 DF200 HD300 KiYa 143 KiYa 291 Seibu D15 Seibu D21 Ooikawa DB1 Ooikawa DB51 Ooikawa DD100 Ooikawa DD20
Electric locomotives	EB10 ED10 ED15 ED16 ED17 ED18 ED19 ED60 ED61 ED62 ED70 ED71 ED72 ED73 ED74 ED75 ED76 ED77 ED78 ED79 EF10 EF13 EF15 EF16 EF30 EF50 EF51 EF52 EF53 EF55 EF56 EF57 EF58 EF59 EF60 EF61 EF62 EF63 EF64 EF65 EF66 EF67 EF70 EF71 EF80 EF81 EH10 EH50 ED500 EF200 EF210 EF500 EF510 EH200 EH500 EH800 Chichibu DeKi 1 Chichibu DeKi 100 Chichibu DeKi 200 Chichibu DeKi 300 Chichibu DeKi 500 Meitetsu DeKi 300 Meitetsu DeKi 400 Meitetsu DeKi 600 Meitetsu Class EL120 Tobu ED4010 Tobu ED5000 Tobu ED5010 Tobu ED5060 Seibu E31 Seibu E851 Ooikawa E10 Ooikawa ED90 Toei E5000

• 2-10-4 locomotives
• Steam locomotives of Japan
• 1067 mm gauge locomotives of Japan
• Preserved steam locomotives of Japan
• Railway locomotives introduced in 1948
• Freight locomotives