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K Class 2-4-2
CLASS  K    2-4-2

Introduced: 1877 Number in Class: 8

K Class Register

Locomotive Specifications

  Rogers Locomotive Works, Paterson, New Jersey

Engine Weight:    
23.3 tons
Tender Weight:    
19.2 tons
Total Weight:    42.5 tons Adhesive Weight:    
14.8 tons
Length over Buffers:    
45' 7"
Total Wheelbase:    39' 1" Engine Wheelbase:    22' 3" Coupled Wheelbase:    
11' 10"
Tender Wheelbase:    
6' 0"
Driver Wheel Dia.:    48" Cylinders HP:    
Two - 12" x 20"
Cylinders LP:    
Grate Area:    8.8 sq ft Evaporative Area:    
589 sq ft
Superheated Area:     Working Pressure:    
130 psig
Tractive Effort:    
6240 lbs f
Coal Capacity:    2.2 tons Oil Capacity:     Water Capacity:    
1250 gals

Remarks:     When these engines first arrived from America, they were dismissed as "Yankee Toys". But after they went into service, they proved just what they could achieve with heavy loads. All were delivered to the South Island where they entered passenger express service and gained a reputation for being 'fliers'.
By the mid-1880s, the increasing weight of trains determined their replacement with the more powerful "N' class., but they remained on light duty goods service for a number of years, and after half a century of splendid work the last of these fine little engines was withdrawn in 1928.

Preserved Locomotives
  Plains Railway,    Tinwald -     K 88,     Rogers #2454/1877   Operating
  Waimea Plains Railway Trust,    Mandeville -     K 92,     Rogers #2468/1978   Operational, stored Tinwald
  Plains Railway (?),    Tinwald -     K 94,     Rogers #2470/1878   Not restored, stored Tinwald