NZR TR class


NZR TR class
NZR TR class
TR 156 at Ferrymead
Power type Diesel-Mechanical/Hydraulic
Builder Drewry Car Co (29), A & G Price (39), W G Bagnall (7), Hitachi (6), NZR Hillside Workshops (9)
Build date 1936-78
AAR wheel arr. 0-4-0, 0-6-0
Gauge 1067 mm
Locomotive weight 9.4-20.8 t
Prime mover Detroit 4-71, Gardner 8LW, Gardner 6L3, Gardner 6LW, McLaren M6, Gardner 6LX, Cummins 6 cyl
Top speed 24-40 km/h
Career NZGR, New Zealand Railways, Tranz Rail, Toll Rail, KiwiRail
Number in class 90
Number TMS numbers: 10-1026
Road numbers: 13-222
Nicknames "Tonka Toy" (TR 534)
First run 1936
Current owner KiwiRail (63)
Disposition 63(?) in service; 11 written off; 20 preserved

The NZR TR class is a class of diesel shunting locomotives built by many different manufacturers. Many of these locomotives have been withdrawn, but some are still in service. The first locomotives of this class were built by the Drewry Car Co in 1936, and had 52 kW or 90 kW petrol engines. The most powerful were Japanese-built Hitachi TRs, with 138 kW Cummins engines.

Contents

Manufacturers

Drewry Car Co., UK

The original batch of six 0-4-0 TRs, 13-18, supplied in 1936 by the Drewry Car Co., was supplemented by TR 20-22 and 30-36 in 1939-40. These were powered by Parsons petrol engines. In 1939-40 seven 0-6-0 TRs (the only ones of this type), 23-29, were supplied and were fitted with Leyland 10 litre petrol engines Wairarapa railcars. Finally, in 1950 five 0-4-0 TRs, 60-64, with diesel engines were introduced. The locomotives were built at various UK works including Vulcan Foundry and Robert Stephenson and Hawthorns. Practically all Drewry TRs are out of service today.

Rebuilds
  • TR 23-29 were re-engined from 1954 with Gardner 8LW engines developing 78 kW (100 hp) at 1200 rpm, transmission being a Wilson 4-speed gearbox.
  • TR 13-18, 20-22 and 30-36 were re-engined from 1958, and TR 81 in 1968, with the Detroit Diesel 4-71 series engine developing 78 kW (100 hp) at 2000 rpm, transmitting through an Allison torque converter.

W. G. Bagnall, UK

W. G. Bagnall built seven TRs in 1956-57. The first five were supplied with McLaren M6 engines, the last two with Gardner 6L3 engines, all with a Self-Changing Gears 4-speed gearbox. The McLaren engines were unsuccessful, so from 1973 TR 150-154 were re-engined with the Gardner 6LX with Twin Disc torque converters. These TRs were the heaviest and one of the more powerful types.

A & G Price, NZ

A&G Price TR 170 (TR 724 TMS)

The long established NZ engineering firm A & G Price of Thames supplied a total of 39 TRs, making them the largest single builder. Four different models were supplied: the Model 3 (TR 100-109), with Gardner 6LW engine and Self Changing Gears 4-speed gearbox; the Model 9 (TR 110-118), powered by a Gardner 6LW engine and Twin Disc torque converter; the Model 4 (TR 157-161), McLaren M6 engine and SCG 4-speed gearbox; and the Model 6 (TR 162-176), engine Gardner 6L3, also SCG 4-speed gearbox. The McLaren engined TRs were re-powered from 1975 with Gardner 6LX engines and the gearbox was replaced with a Twin Disc torque converter.

Hitachi, Japan

Hitachi received an order for six TRs, 177-182, at a time when NZR was turning away from traditional English suppliers and purchasing an increased number of vehicles from Asia. The locomotives were equipped with a Cummins 6-cylinder engine developing 138 kW (185 hp) and Niigata torque converter, making them the most powerful TRs.

NZR Hillside workshops

The last TRs were manufactured by NZR at their Hillside workshops. Up to two were completed each year between 1973 and 1978 (TR 183-191). The design is an unusual (for a TR) centre-cab style with a single Gardner 6LX engine and Rolls Royce torque converter. Standard parts such as DSC class windows were utilised in these TRs.

Operation

The typical role of a TR was at small stations where a normal shunting locomotive was not needed due to light traffic. NZR's operating rules allowed TRs to be driven by staff who were not members of the locomotive branch, saving on wages. Other roles have included railway workshops and depots, and most of the remaining locomotives can still be found at these locations. There are very few stations where they are still in use owing to rationalisations of freight terminals, the trend towards containerisation of traffic, and roving shunting services. A number of locomotives have been leased to industrial operators for private siding use.

The last TR was built in 1978, TR 191. The greatly reduced needs of NZR and its successors for this type of locomotive, and industrial requirements being able to be handled by other ex-NZR classes or locos obtained from elsewhere, has meant no TRs have been added since then. However four locomotives have been reclassified from other types.

The TR classification has been applied to two former industrial locomotives. One of these is TR 81, which was purchased from the Ohai Railway Board in 1955. Built by the Drewry Car Co in the 1930s, it is similar to the first generation 0-4-0 Drewry TRs, but was originally fitted with the Gardner 6LW diesel engine. The other is A&G Price no. 222 which was acquired from Pacific Metal Industries in the early 2000s. It was built in 1968 with a 307 hp diesel engine and is of the 0-6-0 wheel arrangement. Originally reclassified DSA 222 it now carries the number TR 1026 and is leased for industrial use.

In the 1990s, EB 26 at Napier was reclassified as TR 1003 and used in the area for shunting work. The EB class were formerly workshops shunting locomotives. The Plains Vintage Railway of Ashburton, a heritage railway, also reclassified a former industrial locomotive as a TR. Although A & G Price built similar locomotives for NZR, this locomotive was never owned by NZR or its successors and thus its TR classification and number are historically fictitious.

Table of locomotive specifications

TR


13-18
20-22
30-36


23-29


60-64


81


100-109


110-118


150-154


155, 156


157-161


162-176


177-182


183-191


Type


Diesel Mechanical / Diesel Hydraulic Rail Tractor


Intro-
duced


1936-40


1939-41


1949-50


1939


1956


1963-64


1956-57


1956-57


1958-59


1959-62


1969


1973-78


Number in sub class


16


7


5


1


10


9


5


2


5


15


6


9


Class totals


90 original, 4 reclassified from other types.


Manuf-
acturer


Drewry Car Co


Drewry Car Co


Drewry / RS&H


Drewry Car Co


A & G Price


A & G Price


W G Bagnall


W G Bagnall


A & G Price


A & G Price


Hitachi


NZR


Gauge


1067 mm


Axles


0-4-0


0-6-0


0-4-0


Length


5.1 m


6.2 m


6.6 m


5.0 m


6.1 m


6.4 m


7 m


7 m


7 m


7 m


7 m


7 m


Weight
IWO


9.4 t


15.7 t


20.1 t


10.7 t


15.2 t


15.2 t


20.8 t


20.8 t


20.3 t


20.3 t


20.3 t


20.4 t


Engine


Parsons petrol /
Detroit 4-71


Leyland petrol /
Gardner 8LW


Gardner 6L3


Gardner 6LW /
Detroit 4-71


Gardner 6LW


Gardner 6LW


McLaren M6 /
Gardner 6LX


Gardner 6L3


McLaren M6 /
Gardner 6LX


Gardner 6L3


Cummins 6 cyl


Gardner 6LX


Trans-
mission


Wilsons 4 speed /
Allison torque converter


Unknown /
Wilsons 4 speed


Wilsons 4 speed


Wilsons 4 speed or
Allison torque converter


SCG 4 speed


Twin Disc torque converter


SCG 4 speed /
Twin Disc torque converter


SCG 4 speed


SCG 4 speed /
Twin Disc torque converter


SCG 4 speed


Niigata torque converter


Rolls Royce torque converter


Power


52 kW /
78 kW


90 kW /
75 kW


115 kW


76/78 kW


83 kW


80 kW


112 kW


114 kW


112 kW


114 kW


138 kW


112 kW


Tractive effort


23 kN


33 kN


35 kN


30 kN


32 kN


37 kN


34 kN


43 kN


42 kN


42 kN


49 kN


34 kN


Speed


33 km/h


24 km/h


35 km/h


33 km/h


27 km/h


24 km/h


40 km/h


30 km/h


30 km/h


30 km/h


32 km/h


40 km/h


TR


13-18
20-22
30-36


23-29


60-64


81


100-109


110-118


150-154


155, 156


157-161


162-176


177-182


183-191

List of locomotives

Key: In service Out of service Auckland Transport service Preserved Overhaul Scrapped

- style="background:#98ff98;"

Original no. TMS no. Builder (batch) Introduced Withdrawn Notes
TR 13 10 Drewry Car Company, first batch 01936-08 August 1936 01985-03 March 1985 Written off 1986. Industrial. Preserved, Feilding and District Steam Rail Society
TR 14 Drewry Car Company, first batch 01936-08 August 1936 01960-07 July 1960 Written off 1960.
TR 15 27 Drewry Car Company, first batch 01936-10 October 1936 Written off 1987.
TR 16 33 Drewry Car Company, first batch 01936-11 November 1936 Preserved, Bush Tramway Club, Pukemiro.
TR 17 56 Drewry Car Company, first batch 01936-11 November 1936 KiwiRail's oldest locomotive.
TR 18 62 Drewry Car Company, first batch Preserved, Pleasant Point Railway.
TR 20 79 Drewry Car Company, first batch
TR 21 85 Drewry Car Company, first batch Preserved, Museum of Transport and Technology, Auckland.
TR 22 91 Drewry Car Company, first batch Preserved, Diesel Traction Group, Ferrymead Railway, Christchurch.
TR 23 102 Drewry Car Company, second batch Preserved, Gisborne City Vintage Railway, Gisborne.
TR 24 119 Drewry Car Company, second batch Preserved, Thames North Primary School.
TR 25 125 Drewry Car Company, second batch
TR 26 131 Drewry Car Company, second batch
TR 27 148 Drewry Car Company, second batch
TR 28 Drewry Car Company, second batch Written off 1975
TR 29 154 Drewry Car Company, second batch
TR 30 160 Drewry Car Company, first batch Preserved, Glenbrook Vintage Railway - playground.
TR 31 177 Drewry Car Company, first batch Scrapped 1986.
TR 32 183 Drewry Car Company, first batch Preserved, Tokomaru Steam Engine Museum, Tokumaru.
TR 33 200 Drewry Car Company, first batch Preserved, Albany Park, Auckland.
TR 34 217 Drewry Car Company, first batch Former Nelson Section.Preserved, Bush Tramway Club.
TR 35 223 Drewry Car Company, first batch Preserved, Oamaru Steam and Rail Restoration Society
TR 36 246 Drewry Car Company, first batch Preserved, Pahiatua Railcar Society.
TR 38 A & G Price First petrol locomotive in New Zealand.[1] Preserved, Plains Vintage Railway.
TR 39 A & G Price
TR 54 Drewry Car Company, first batch Preserved, Ferrymead Railway, Christchurch.
TR 60 252 Drewry Car Company and RSH
TR 61 269 Drewry Car Company and RSH Scrapped 1989.
TR 62 275 Drewry Car Company and RSH Preserved, Nelson Railway Society.
TR 63 281 Drewry Car Company and RSH
TR 64 298 Drewry Car Company and RSH
TR 81 309 Drewry Car Company, batch three. Written off 1988. Ohai Railway Board, 1955-88. Preserved Ocean Beach Railway, Dunedin.
TR 100 315 A & G Price, first batch.
TR 101 321 A & G Price, first batch.
TR 102 338 A & G Price, first batch.
TR 103 344 A & G Price, first batch. Industrial.
TR 104 350 A & G Price, first batch. Preserved, Kingston Flyer. Written off March 1988.
TR 105 367 A & G Price, first batch. International Orange
TR 106 373 A & G Price, first batch. Written off August 1989
TR 107 396 A & G Price, first batch. Preserved, Shantytown, Greymouth.
TR 108 407 A & G Price, first batch. Preserved, Waitara Railway Preservation Society
TR 109 413 A & G Price, first batch.
TR 110 436 A & G Price, second batch. International Orange
TR 111 442 A & G Price, second batch. In service, Taieri Gorge Railway.
TR 112 459 A & G Price, second batch. International Orange
TR 113 465 A & G Price, second batch.
TR 114 471 A & G Price, second batch. Out of service and stored at Hutt Workshops.
TR 115 488 A & G Price, second batch.
TR 116 494 A & G Price, second batch.
TR 117 505 A & G Price, second batch. Preserved, Pahiatua Railcar Society, Pahiatua. Written off February 1988.
TR 118 511 A & G Price, second batch. Preserved, Waimea Plains Railway, Mandeville.
TR 150 528 W. G. Bagnall, first batch.
TR 151 534 W. G. Bagnall, first batch. Preserved, Mainline Steam, Plimmerton.
TR 152 540 W. G. Bagnall, first batch.
TR 153 557 W. G. Bagnall, first batch.
TR 154 563 W. G. Bagnall, first batch.
TR 155 586 W. G. Bagnall, second batch.
TR 156 592 W. G. Bagnall, second batch. Preserved, Ferrymead Railway, Christchurch.
TR 157 603 A & G Price, third batch. International Orange
TR 158 972 A & G Price, third batch.
TR 159 626 A & G Price, third batch.
TR 160 632 A & G Price, third batch. Preserved, Pahiatua Railcar Society, Pahiatua.
TR 161 649 A & G Price, third batch. Preserved, Reefton Historic Trust Board, Reefton.
TR 162 655 A & G Price, fourth batch.
TR 163 661 A & G Price, fourth batch.
TR 164 678 A & G Price, fourth batch.
TR 165 684 A & G Price, fourth batch. Preserved, Waitara Railway Preservation Society.
TR 166 989 A & G Price, fourth batch. Preserved, Main Trunk Rail, Ohakune.
TR 167 690 A & G Price, fourth batch.
TR 168 701 A & G Price, fourth batch. International Orange
TR 169 718 A & G Price, fourth batch.
TR 170 724 A & G Price, fourth batch. Preserved, Wairarapa Railway Restoration Society, Carterton.
TR 171 730 A & G Price, fourth batch. Tranz Rail Blue. Preserved Museum of Transport and Technology
TR 172 747 A & G Price, fourth batch.
TR 173 753 A & G Price, fourth batch.
TR 174 776 A & G Price, fourth batch. Scrapped July 2001.
TR 175 782 A & G Price, fourth batch.
TR 176 799 A & G Price, fourth batch.
TR 177 816 Hitachi
TR 178 822 Hitachi Tranz Rail Blue
TR 179 839 Hitachi International Orange
TR 180 845 Hitachi Toll Rail ("Corn Cob")
TR 181 851 Hitachi International Orange
TR 182 868 Hitachi Tranz Rail Blue
TR 183 874 NZR Hillside KiwiRail livery.
TR 184 880 NZR Hillside Tranz Rail Blue
TR 185 897 NZR Hillside KiwiRail livery.
TR 186 908 NZR Hillside Tranz Rail Black ("Bumble Bee")
TR 187 914 NZR Hillside Toll Rail ("Corn Cob")
TR 188 920 NZR Hillside KiwiRail livery.
TR 189 937 NZR Hillside Preserved, Rimutaka Incline Railway Heritage Trust, Maymorn.
TR 190 943 NZR Hillside Preserved, National Railway Museum of New Zealand.
TR 191 966 NZR Hillside International Orange
EB 26 1003 Reclassified from EB class. Preserved, Napier.
(A & G Price no. 222) 1026 Reclassified from DSA 222, ex Pacific Metal Industries. Industrial.
(A & G Price no. 198) Reclassified as TR 119. Preserved, Plains Vintage Railway, Ashburton.

References

External links


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