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 1¼ 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