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Specifications
Specifications
Configuration:;
• Whyte	2-6-2T
Gauge	3 ft 6 in (1,067 mm)
Wheel diameter	39.75 in (1.010 m) ; 42.5 in (1.080 m) on rebuilt locos
Wheelbase	22 ft 3 in (6.78 m)
Length	29 ft 8 in (9.04 m)
Adhesive weight	26.2 long tons (26.6 t; 29.3 short tons)
Loco weight	37.2 long tons (37.8 t; 41.7 short tons)
Fuel type	Coal
Fuel capacity	2 long tons (2.0 t; 2.2 short tons)
Water cap.	950 imp gal (4,300 L; 1,140 US gal)
Firebox:
• Grate area	12.0 sq ft (1.11 m2) ; 11 sq ft (1.0 m2) (nos 120, 262)
Boiler pressure	170 psi (1,172 kPa) ; 160 psi (1,103 kPa) (nos 120, 262)
Heating surface	738 sq ft (68.6 m2) ; 556 sq ft (51.7 m2) (nos 120, 262)
Cylinders	Two
Cylinder size	14 in × 20 in (356 mm × 508 mm)

Type and origin
Type and origin
Power type	Steam
Builder	NZR Addington Workshops, Hillside Workshops
Build date	1892-1903

NZR WA class
NZR WA class
	Wa165 on Gisborne City Vintage Railway
Power type
Type and origin
Power type	Steam
Builder	NZR Addington Workshops, Hillside Workshops
Build date	1892-1903
Configuration:;
Specifications
Configuration:;
• Whyte	2-6-2T
Gauge	3 ft 6 in (1,067 mm)
Wheel diameter	39.75 in (1.010 m) ; 42.5 in (1.080 m) on rebuilt locos
Wheelbase	22 ft 3 in (6.78 m)
Length	29 ft 8 in (9.04 m)
Adhesive weight	26.2 long tons (26.6 t; 29.3 short tons)
Loco weight	37.2 long tons (37.8 t; 41.7 short tons)
Fuel type	Coal
Fuel capacity	2 long tons (2.0 t; 2.2 short tons)
Water cap.	950 imp gal (4,300 L; 1,140 US gal)
Firebox:
• Grate area	12.0 sq ft (1.11 m2) ; 11 sq ft (1.0 m2) (nos 120, 262)
Boiler pressure	170 psi (1,172 kPa) ; 160 psi (1,103 kPa) (nos 120, 262)
Heating surface	738 sq ft (68.6 m2) ; 556 sq ft (51.7 m2) (nos 120, 262)
Cylinders	Two
Cylinder size	14 in × 20 in (356 mm × 508 mm)
Tractive effort
Performance figures
Tractive effort	13,420 lbf (59.7 kN) ; 11,810 lbf (52.5 kN) (rebuilt locos)
Number in class
Career
Number in class	15 (11 new, 4 rebuilt)
Locale	All of New Zealand
First run	1892
Retired	1929-1962
Scrapped	1962
Current owner	Gisborne City Vintage Railway (1)
Disposition	Withdrawn, 1 preserved

The NZR W^A class locomotives were a class of tank locomotive built by New Zealand Railways (NZR). Eleven were built at NZR's own Addington Workshops in Christchurch and Hillside Workshops in Dunedin. Four more were converted from old J class 2-6-0 locomotives.^[1]^[2]^[3]

Three were fitted with brakes to assist descent on the Fell-operated Rewanui and Roa inclines on the South Island's West Coast Region. These were among the last in use.

Preservation

Only one W^A class has been preserved, number 165. The locomotive was restored by Gisborne City Vintage Railway in 2000.^[4]

References

Citations

^ Palmer & Stewart 1965, p. 35.
^ Lloyd 1974, p. 50–109.
^ Stewart 1974, p. 141.
^ "Gisborne City Vintage Railway - History".

Bibliography

Lloyd, W. G. (1974). Register of New Zealand Railways Steam Locomotives 1863-1971 (2nd ed.). ISBN 0-9582072-1-6.
Stewart, W. W. (1974). When Steam was King. Wellington: A. H. & A. W. Reed Ltd. ISBN 978-0-589-00382-1.
Palmer, A. N.; Stewart, W. W. (1965). Cavalcade of New Zealand Locomotives. Wellington: A H. & A W. Reed. ISBN 978-0-207-94500-7.