Built: 1938 by New Zealand Government Railway Workshops at Hutt Workshops, NZ

Configuration:

 Double bogie, double ended, twin engined railcar.

Gauge:

 3ft 6in 

Engine

Two Meadows 6DT630 6-cyl diesels engines, Wilson fluid flywheel, SGS 4-speed epicyclic gearbox, Leyland RFD/1 final drive and reverse unit.

Axle loading:

7.62 tonnes

Driving Wheels:

Inner wheels are powered

Steating:

52

Toliet:

Yes

Fuel:

70 gallons

Fuel Usage:

9-10 miles per gallon

Weight:

29.9 tonnes

Length:

66 ft

Operating Speed:

43 ½ mph now - Orginally 70 mph

Approx Power:

 2x115hp

Pahiatua Railcar Society Inc are currently preparing RM31 a standard class railcar for use on the mainline.  RM 31 called Tokomaru was used on the Wellington to New Plymouth for 33 years until 1972.  The remaining four Standard railwares were used in the Hawkes Bay mainly between Napier and Gisborne, until 1955.  All six railcars then operated between Wellington and New Plymouth until 1972.