NZR M class

NZR M Class

Image courtesy of A P Godber Collection, Alexander Turnbull Library

Type and origin
Power type	Steam
Builder	Hunslet
Build date	1875
Total produced	4
Rebuilder	NZR
Rebuild date	1888-1890

Specifications
Configuration:
• Whyte	0-6-0T
Driver dia.	42.25 in (1.073 m)
Loco weight	27.7 long tons (28.1 tonnes; 31.0 short tons)
Firebox:
• Grate area	8.6 sq ft (0.80 m²)
Boiler pressure	130 lbf/in² (896 kPa)
Heating surface	583 sq ft (54.2 m²)
Cylinders	Two, outside
Cylinder size	13 in × 20 in (330 mm × 508 mm)

Performance figures
Tractive effort	7,200 lbf (32.03 kN)

Career
First run	1875

The NZR M class were a series of four tank engines built in England for the Otago railways Bluff to Winton section. They were acquired by NZR in the late 1870s and rebuilt in the late 1880s. As rebuilt they were not very successful and were used in shunting duties until retirement in the 1920s.^[1]

They were rather ineffectual engines derisively called the Pullets by engine men. They were used on the Napier Express at the turn of the century; either in pairs or with a Baldwin N class when the duo was called a 'en and chicken. ^[2]

Footnotes

References

^ Palmer & Stewart 1965, p. 38.
^ Mahoney, J D (1987) [1982]. Kings of the Iron Road: Steam Passenger Trains of New Zealand. Palmerston North: Dunmore Press. p. 52. ISBN 0-908564-90-2.

Bibliography

Millar, Sean (2011). The NZR Steam Locomotive. Wellington: New Zealand Railway and Locomotive Society. ISBN 978-0-908573-89-9.
Palmer, A. N.; Stewart, W. W. (1965). Cavalcade of New Zealand Locomotives. Wellington: A H. & A W. Reed. ISBN 978-0-207-94500-7.
Stewart, W. W. (1974). When Steam was King. Wellington: A. H. & A. W. Reed Ltd. ISBN 978-0-589-00382-1.

External links

Class M on Trainweb

Rail vehicles of New Zealand

Diesel locomotives

Mainline	DA (inc. DAA, DAR) DB (inc. DBR) DC (inc. DCP) DF (English Electric) DF (General Motors) inc. DFT, DFB, DFM DG (inc. DH of 1956) DI DJ DL DM (on order) DQ and QR DX (inc. DXB, DXC, DXR)
Shunt	DE DH of 1978 DS DSA DSB DSC DSG DSJ TR

Electric locomotives

1500 V DC	E^A (later EO of 1968) E^C E^D E^O of 1923 E^W
25 kV AC	EF
Battery	E E^B

Diesel multiple units

Electric multiple units

1500 V DC (Wellington)	"English Electric" D^M (inc. D trailers) "Ganz Mavag" EM (inc. ET trailers) "Matangi" FP (inc. FT trailers)
25 kV AC (Auckland)	AM (inc. AMP, AMT, AMA)

Railcars

RM class	88 seater (also known as Fiats or twinsets) Clayton steam railcar Edison battery-electric railcar Red Terror railcar Midland railcar Leyland experimental petrol railcar McEwan Pratt petrol railcar Model T Ford railcar Sentinel-Cammell steam railcar Silver Fern railcar Standard railcar Thomas Transmission railcar Vulcan railcar Wairarapa railcar Westinghouse railcar
Others	A 88 Buckhurst petrol carriage