Sentetsu Tehoshi-class locomotive

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Power typeSteam
Power typeSteam
BuilderALCo
Build date1913
Chosen Government Railway Tehoshi class (テホシ)
Korean State Railway Tŏunŏ class (더우너)
Tehoshi-class locomotive number 238 as built in 1913.
Type and origin
Power typeSteam
BuilderALCo
Build date1913
Total produced4
Specifications
Configuration:
  Whyte4-6-0
Gauge1,435 mm (4 ft 8+12 in)
Driver dia.1,680 mm (66 in)
Length18,625 mm (61 ft 1.3 in)
Width2,972 mm (9 ft 9.0 in)
Height4,232 mm (13 ft 10.6 in)
Loco weight68.40 t (67.32 long tons)
Tender weight43.03 t (42.35 long tons)
Fuel capacity6.00 t (5.91 long tons)
Water cap.15,100 L (4,000 US gal)
Firebox:
  Grate area3.72 m2 (40.0 sq ft)
Boiler:
  Small tubes264 x 57 mm (2.2 in)
Boiler pressure12.6 kgf/cm2 (179 psi)
Heating surface:
  Firebox12.00 m2 (129.2 sq ft)
  Tubes156.50 m2 (1,684.6 sq ft)
  Total surface174.80 m2 (1,881.5 sq ft)
Cylinders1
Cylinder size510 mm × 660 mm (20 in × 26 in)
Valve gearWalschaerts
Performance figures
Maximum speed95 km/h (59 mph)
Tractive effort111.0 kN (25,000 lbf)
Career
OperatorsChosen Government Railway
Korean State Railway
ClassSentetsu: テホシ
KSR: 더우너
Number in class4
NumbersSentetsu: テホシ1–テホシ4
KSR: 더우너1–더우너4
Delivered1913

The Tehoshi-class (テホシ) locomotives were a class of steam tender locomotives of the Chosen Government Railway (Sentetsu) with 4-6-0 wheel arrangement.[1] The "Teho" name came from the American naming system for steam locomotives, under which locomotives with 4-6-0 wheel arrangement were called "Ten Wheeler".[2]

After the Liberation of Korea, of the 178 surviving locomotives of all Teho classes - including six previously owned by private railway companies - 106 went to the Korean National Railroad in the South, and 72 to the Korean State Railway in the North.[3]

Following the brief excursion to ALCo for the Tehosa class, Sentetsu once again returned to Baldwin for the next order of 4-6-0s. This was a small lot of four locomotives built in 1913, initially numbered 235–238 and intended for local freight trains, and had a lower profile than the previous Baldwin designs.[1] They were renumbered 661–664 in 1918, finally being designated テホシ (Tehoshi) class in the 1938 general renumbering, numbered テホシ1 through テホシ4.[1]

Postwar

Construction

References

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