KiYa 143

The KiYa 143 (キヤ143形) is a four-axle B-B wheel arrangement diesel-hydraulic locomotive type operated in Japan since 2014 by West Japan Railway Company (JR West).

KiYa 143
KiYa 143-2 at Kanazawa Depot in August 2016
Type and origin
Power typeDiesel-hydraulic
BuilderNiigata Transys
Build date2014–
Specifications
Configuration:
​
 • UICB-B
Gauge1,067 mm (3 ft 6 in)
BogiesWDT68
Wheel diameter860 mm (2 ft 10 in)[1]
Length
  • 19,860 mm (65 ft 2 in) (locomotive only)
  • 26,825 mm (88 ft 0.1 in) (with snowplough units)[1]
Width2,989 mm (9 ft 9.7 in)[1]
Height4,087 mm (13 ft 4.9 in)[1]
Axle load14 t
Loco weight51.8 t (locomotive only)
55.4 t (with snowplough units)[1]
Fuel typeDiesel
Fuel capacity2,000 l
Engine typeSA6D140HE-2 x2
TransmissionHydraulic
Performance figures
Maximum speed75 km/h (45 mph)[1]
Power output900 hp (670 kW)[1]
Career
Operators JR West
Number in class9 (as of 1 April 2017)
NumbersKiHa 143-1 6–
LocaleWest Japan
DeliveredFebruary 2014
First run2014
DispositionIn service

Operations

The KiYa 143 locomotives are used as self-propelled snowplough units during the winter season, replacing ageing JNR Class DD15 and JNR Class DE15 locomotives, and for hauling non-revenue services during other periods with the snowploughs removed.[1]

  • A pair of KiYa 143s top-and-tailing retro-style 35 series coaches on a test run in June 2017

Design

The KiYa 143 locomotives use the same 450 hp (340 kW) diesel engines and braking systems as JR West's KiHa 189 series diesel multiple unit (DMU) trains.[1]

History

The first KiYa 143, KiYa 143-1, was delivered from Niigata Transys in February 2014.[2] This was followed by KiYa 143-2 in March 2014.[3]

Fleet status

As of 1 April 2017, nine KiYa 143 locomotives were in operation, allocated as follows.[4]

NumberDeliveredDepot allocation (as of 1 April 2017)
KiYa 143-1February 2014Kanazawa
KiYa 143-2March 2014Kanazawa
KiYa 143-319 October 2016Fukuchiyama
KiYa 143-41 November 2016Goto
KiYa 143-514 November 2016Tsuruga
KiYa 143-627 February 2017Fukuchiyama
KiYa 143-713 February 2017Goto
KiYa 143-815 March 2017Goto
KiYa 143-921 March 2017Tsuruga

Classification

While technically a diesel locomotive, the KiYa 143 is classified by JR West according to its diesel multiple unit (DMU) numbering scheme.

gollark: Not in a fast-to-index way without horrible amounts of RAM.
gollark: The lookup table? It isn't unless you hardcode all primes ever.
gollark: I mean, it's faster on numbers for which the lookup table is valid, but so is hardcoding the answers.
gollark: Not really.
gollark: WRONG.

References
  1. キヤ143形事業用内燃動車 [KiYa 143 departmental locomotive lists]. Japan Railfan Magazine (in Japanese). Vol. 54 no. 637. Japan: Koyusha Co., Ltd. May 2014. p. 52–56.
  2. JR西日本キヤ143-1が甲種輸送される [JR West KiYa 143-1 delivered]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 21 February 2014. Archived from the original on 13 June 2017. Retrieved 13 June 2017.
  3. JR西日本キヤ143-2が甲種輸送される [JR West KiYa 143-2 delivered]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 13 March 2014. Archived from the original on 4 March 2016. Retrieved 13 June 2017.
  4. JR旅客会社の車両配置表 [JR passenger operating company rolling stock allocations lists]. Japan Railfan Magazine (in Japanese). Vol. 57 no. 675. Japan: Koyusha Co., Ltd. July 2017. p. 37 (supplement).
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