Introduced: 1913
Number in Class: 51
Locomotive Specifications
|
NZR Hillside (48) |
| Engine Weight: 51.5 tons | Tender Weight: | Total Weight: 51.5 tons | Adhesive Weight: 29.7 tons |
| Length over Buffers: 36' 11½" |
Total Wheelbase: 29' 7½" | Engine Wheelbase: 29' 7½" | Coupled Wheelbase: 10' 0" |
| Tender Wheelbase: | Driver Wheel Dia.: 45" | Cylinders HP: Two - 15½" x 22" |
Cylinders LP: |
| Grate Area: 16.9 sq ft | Evaporative Area: 526 sq ft |
Superheated Area: 131 sq ft |
Working Pressure: 180 psig |
| Tractive Effort: 16910 lbs f |
Coal Capacity: 2.0 tons | Oil Capacity: | Water Capacity: 1370 gals |
| Remarks: This class was a superheated version of the 'Wg'. Ten of the original 'Wg' class were reclassified as 'Ww' between 1940 and 1952. The two types were similar in appearance but the 'Ww' had larger cylinders and lower boiler pressure. Except for three engines allocated to the Westport section for coal haulage, all the 'Ww's were for many years employed in the North Island. They handled suburban services at Auckland and Wellington and also worked short-section main-line services. Ten rebuilt with high pitched boiler to new style in 1950-1960. |
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Museum of Transport & Technology, Auckland - Ww 491, NZR Hillside #116/1912 Display Silver Stream Railway, Wellington - Ww 571, NZR Hillside #147/1914 Operating Glenbrook Vintage Railway, Auckland - Ww 644, NZR Hillside #179/1915 Overhauling |
