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Uc Class
CLASS  Uc    4-6-0

Introduced: 1901 Number in Class: 10

Uc Class Register

Locomotive Specifications

   Sharp Stewart & Co. Ltd., Glasgow, Scotland

Engine Weight:    
38.1 tons
Tender Weight:    24.5 tons Total Weight:    62.6 tons Adhesive Weight:    
26.8 tons
Length over Buffers:    
49' 6"
Total Wheelbase:    42' 6" Engine Wheelbase:    21' 3" Coupled Wheelbase:    
10' 0"
Tender Wheelbase:    
13' 0"
Driver Wheel Dia.:    49 1/8" Cylinders HP:    
Two - 16" x 22"
Cylinders LP:    
Grate Area:    17.0 sq ft Evaporative Area:    
975 sq ft
Superheated Area:     Working Pressure:    
200 psig
Tractive Effort:    
18340 lbs f
Coal Capacity:    4.0 tons Oil Capacity:     Water Capacity:    
1700 gals

Remarks:     While these locomotives came from Britain, they represented the final development of the Addington ten-wheeler. They were fine looking engines and were similar to the 'Ua' class except for the higher running boards. Other differences the 'Uc' had over the 'U' and 'Ua' were the cylinders being enlarged to give a longer stroke, piston valves were added, and the boiler had a larger firebox, and carried a working pressure of 200 lbs sq in. With less adhesive weight, the 'Uc' was apt to wheel-slip badly, and it was a "great coal-scoffer" and not easy to fire.

Preserved Locomotives
  Midland Rail Heritage Trust,    Greymouth -     Ub 369,     Sharp Stewart & Co. #4753/1901   Recovered from Grey River.
  Midland Rail Heritage Trust,    Greymouth -     Ub 370,     Sharp Stewart & Co. #4754/1901   Recovered from Grey River