Grand Trunk Western Class K-4b
Type and origin
References:[1][2]
Power typeSteam
BuilderBaldwin Locomotive Works (BLW)
ModelUSRA Light Pacific
Build date1929
Total produced3
Specifications
Configuration:
  Whyte4-6-2
  UIC2′C1′ h2
Gauge4 ft 8+12 in (1,435 mm)
Driver dia.73 in (1,854 mm)
Wheelbase
  • Coupled: 13 ft 0 in (3.96 m)
  • Locomotive: 34 ft 9 in (10.59 m)
  • Loco & tender: 68 ft 7+12 in (20.92 m)
Axle load55,000 lb (25,000 kilograms)
Adhesive weight184,540 lb (83,710 kilograms)[3][4]
Loco weight299,330 lb (135,770 kilograms)
Tender weight210,970 lb (95,690 kilograms)
Total weight510,300 lb (231,500 kilograms)
Fuel typeCoal
Fuel capacity16 t (16 long tons; 18 short tons)
Water cap.10,000 US gal (38,000 L; 8,300 imp gal)
Firebox:
  Grate area66.7 sq ft (6.20 m2)
Boiler pressure215 psi (1.48 MPa)
Heating surface3,418 sq ft (317.5 m2)
  Tubes2,091 sq ft (194.3 m2)
  Flues981 sq ft (91.1 m2)
  Firebox344 sq ft (32.0 m2)
Superheater:
  Heating area789 sq ft (73.3 m2)
CylindersTwo
Cylinder size25 in × 28 in (635 mm × 711 mm)
Valve gearWalschaerts
Valve type14-inch (356 mm) piston valves
Performance figures
Tractive effort43,810 lbf (194.9 kN)
Factor of adh.4.21
Career
OperatorsGrand Trunk Western Railroad
ClassK-4b
Numbers5632-5634
Retired1959
Preserved5632
DispositionOne preserved, both scrapped

The Grand Trunk Western Class K-4b is a class of three 4-6-2 "Pacific" type steam locomotives that were built by the Baldwin Locomotive Works (BLW) for the Grand Trunk Western Railroad in 1929 as copies of the USRA Light Pacifics.[5][6]

History

In the late 1920s, the Grand Trunk Western Railroad needed a new class of steam locomotive that could haul freight trains at fast speeds, in response to this, the Baldwin Locomotive Works, who was insisting on designing a locomotive class for the GTW had went back to the drawing board to draw up a design. This resulted in the formation of the Grand Trunk Western Class K-4b, a total of five locomotives were ever built in 1924, specifically to haul both passenger trains and freight trains at a maximum speed of 80 mph (130 km/h).[6] All three locomotives were numbered as 5632, 5633 and 5634.[4]

All three engines were eventually withdrawn from service in the 1950s. And both No. 5633 and 5634 were scrapped, leaving one of them No. 5632 behind.[7]

Preservation

Grand Trunk Western 5632 worked on the Grand Trunk Western Railroad until being retired in 1959 and was donated to the City of Durand, Michigan in 1961. It is now on static display near Durand City Hall on the old Ann Arbor Railroad right-of-way line.[7][8][9]

References

  1. Llanso, Steve. "Canadian Government / Canadian National / Canadian Northern / Grand Trunk / Grand Trunk Pacific / Grand Trunk Western / Intercolonial / Reid Newfoundland 4-6-2 Locomotives in Canada". www.steamlocomotive.com. Retrieved July 4, 2023.
  2. Dorin (1977), p. 120.
  3. Agreement Between Grand Trunk Western Railroad Company and Employees Represented by Brotherhood of Locomotive Firemen and Enginemen. Detroit, Michigan: Grand Trunk Western Railroad. 1944. p. 57.
  4. 1 2 "GTW steam roster | CNRHA". www.cnrha.ca. Retrieved 2023-12-05.
  5. Agreement Between Grand Trunk Western Railroad Company and Employees Represented by Brotherhood of Locomotive Firemen and Enginemen. Detroit, Michigan: Grand Trunk Western Railroad. 1944. p. 57.
  6. 1 2 Drury (2015), p. 93.
  7. 1 2 "Steam Locomotive Information". www.steamlocomotive.info. Retrieved 2023-09-04.
  8. Kean (1973), p. 96
  9. Ingles (2001), p. 91

See also

Further reading

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