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Wb Class
CLASS  Wb    2-6-2 T


Introduced: 1898 Number in Class: 12

Wb Class Register





Locomotive Specifications

Builder:
   Baldwin Locomotive Works, Philadelphia, USA

Engine Weight:    
40.7 tons
Tender Weight:     Total Weight:    40.7 tons Adhesive Weight:    
29.5 tons
Length over Buffers:    
32' 9"
Total Wheelbase:    23' 3" Engine Wheelbase:    23' 3" Coupled Wheelbase:    
10' 0"
Tender Wheelbase:     Driver Wheel Dia.:    39 3/4" Cylinders HP:    
Two - 14" x 20"
Cylinders LP:    
Grate Area:    17.3 sq ft Evaporative Area:    
845 sq ft
Superheated Area:     Working Pressure:    
170 psig
Tractive Effort:    
13412 lbs f
Coal Capacity:    1.3 tons Oil Capacity:     Water Capacity:    850 gals

Remarks:      The order placed on Baldwin in 1898 provided for a specification with all the essentials of the Addington-built 'Wa'. They corresponded in cylinder dimensions, coupled wheel diameter, working pressure, and overall wheelbase. The only real difference was that the Baldwin had inside Stephenson link motion. They had some faults, however, the cab was rather small and the coal bunker far too small holding only 1 tons. they were a little heavier than the 'Wa' Class.

Preserved Locomotives
  Rimutaka Incline Railway,    Upper Hutt, Wellington -     Wb 292,     Baldwin #16172/1898   Restoring
  Rimutaka Incline Railway,    Upper Hutt, Wellington -     Wb 299,     Baldwin #16175/1898   Restoring