Facebook Page
Johnston 16-Wheeler

NZR Stores Branch

Introduced: 1915 Number in Class: 1

Stores Register

Locomotive Specifications

J. Johnston & Son, Invercargill, New Zealand

Engine Weight:    
Tender Weight:     Total Weight:     Adhesive Weight:    
Length over Buffers:    
Total Wheelbase:    
Engine Wheelbase:     Coupled Wheelbase:    
Tender Wheelbase:     Driver Wheel Dia.:    20" Cylinders HP:    
Two - 7.5" x 10"
Cylinders LP:    
Grate Area:     Evaporative Area:    
Superheated Area:    
Working Pressure:    
150 psig
Tractive Effort:    
Coal Capacity:    Wood fuel Oil Capacity:     Water Capacity:    

Remarks:     The Mountain Rimu Timber Co. of Mamaku, near Rotorua, was aquired by the NZR Stores Branch in 1915 and took over operation of this Class D Johnston 16-wheeler. Similar to the Price 16-wheeler, it had a vertical two-cylinder engine in the cab driving through spur reduction gears to a line shaft, which in turn drove all eight axles via skew bevel gears. This loco was very rough riding, so the NZR converted it to an eight-wheeler, using two tender bogies from a scrapped NZR locomotive. This cured the problem without affecting the load hauling capacity. In use until 1953, it was derelict by 1956 and may have been scrapped soon after.