Introduced: 1897

Number in Class: 20

Fb Class Register

Locomotive Specifications

Builders:   NZR Addington   NZR Hillside   NZR Petone   NZR Newmarket   NZR Westport

Engine Weight:     29.3 tons	Tender Weight:	Total Weight:    29.3 tons	Adhesive Weight:     25.2 tons
Length over Buffers:     27' 3"	Total Wheelbase:    16' 6"	Engine Wheelbase:     16' 6"	Coupled Wheelbase:     10' 6"
Tender Wheelbase:	Driver Wheel Dia.:    36½"	Cylinders HP:     Two - 12" x 18"	Cylinders LP:
Grate Area:    10.7 sq ft	Evaporative Area:     530 sq ft	Superheated Area:	Working Pressure:     160 psig
Tractive Effort:     9090 lbs f	Coal Capacity:    1.6 tons	Oil Capacity:	Water Capacity:    800 gals

Remarks:    In 1897 a new locomotive, similar the the 'Fa', but fitted with a larger bunker and a trailing pony truck under the cab to give it the 0-6-2 wheel arrangement, was passed out of the Addington workshops. This became the 'Fb' class and led to the conversion of all 12 'Fa' class 0-6-0 t locomotives being altered to conform. After the conversion process had been completed, all locomotives reverted to the 'Fa' classification.

Preserved Locomotive   Bay of Islands Railway,    Kawakawa -     Fb 9,     NZR Addington #18/1897   Converted to Diesel