NZR WGclass

NZR WGclass
WGNo. 492, Godber Collection,Alexander Turnbull Library.
Type and origin Power type Steam Builder NZGRHillside Build date 1910-1912 Total produced 20
Specifications Configuration: ​ •Whyte 4-6-4T Gauge 3 ft 6 in(1,067 mm) Driverdia. 45 in (1.143 m) Adhesive weight 29.7 long tons (30.2 t) Loco weight 50.5 long tons (51.3 tonnes; 56.6 short tons) Fuel type Coal Firebox: ​ • Grate area 16.9 sq ft (1.57 m2) Boiler pressure 200 lbf/in2(1,379 kPa) Heating surface 738 sq ft (68.6 m2) Cylinders Two, outside Cylinder size 14 in × 22 in (356 mm × 559 mm)
Performance figures Tractive effort 15,330 lbf (68.19 kN)
Career Operators NZR Locale All of New Zealand

TheNZR W^Gclasswas a development of the preceding W^Fclass of all purpose tank locomotive. Later in their careers most (14) were rebuilt asW^Wclass.The locomotives were designed byA. L. Beattie,who described them as a "large tank locomotive."

In service

The locomotives were used on suburban trains in Wellington and Auckland.

Rimutaka Incline

See also:Rimutaka Incline

1917 photograph of WG 480, Godber Collection,Alexander Turnbull Library.

WG 480 was built by New Zealand Railways atHillside(maker's no 104/10), went into service in October 1910. It was altered for use on theRimutaka Inclineto assist the "Fell" locomotives cope with the military traffic to and from theNew Zealand Expeditionary Forcestraining camp at Featherston. The cowcatchers were altered to clear the high Fell centre rail, and it had an acetylene headlamp arranged to follow the alignment of the track on curves. Written off in June 1969, and preserved atGlenbrook.

Withdrawals

All of the locomotives were withdrawn by 1956.

See also

• NZR W class
• NZR W^Aclass
• NZR W^Bclass
• NZR W^Dclass
• NZR W^Eclass
• NZR W^Fclass
• NZR W^Wclass
• NZR W^S/ W^ABclass
• Locomotives of New Zealand

References

Bibliography

• Palmer, A. N.; Stewart, W. W. (1965).Cavalcade of New Zealand Locomotives.Wellington:A H. & A W. Reed.ISBN978-0-207-94500-7.
• Lloyd, W. G. (1974).Register of New Zealand Railways Steam Locomotives 1863-1971(2nd ed.).ISBN0-9582072-1-6.
• Stewart, W. W. (1974).When Steam was King.Wellington:A. H. & A. W. Reed Ltd.ISBN978-0-589-00382-1.