121 series
| 121 series | |
|---|---|
|
A 121 series set on the Yosan Line in May 2009 | |
| In service | 1987– |
| Manufacturer | Hitachi, Kawasaki Heavy Industries, Kinki Sharyo, Tokyu Car Corporation |
| Refurbishment | 2011– |
| Number built | 38 vehicles (19 sets) |
| Number in service | 38 vehicles (19 sets) |
| Formation | 2 cars per trainset |
| Operator(s) |
JNR (1987) JR Shikoku (1987–) |
| Depot(s) | Takamatsu |
| Line(s) served | Dosan Line, Yosan Line |
| Specifications | |
| Car body construction | Stainless steel |
| Car length | 20,000 mm (65 ft 7 in) |
| Width | 2,870 mm (9 ft 5 in) |
| Height | 4,086 mm (13 ft 4.9 in) |
| Doors | 3 pairs per side |
| Maximum speed | 100 km/h (60 mph) |
| Traction system | MT55A traction motors |
| Power output | 110 kW x 4 |
| Electric system(s) | 1,500 V DC overhead |
| Current collection method | Overhead catenary |
| Bogies |
DT33A (motored) DT12T (trailer) |
| Track gauge | 1,067 mm (3 ft 6 in) |
The 121 series (121系) is an electric multiple unit (EMU) train type introduced in March 1987 by Japanese National Railways (JNR), and currently operated by Shikoku Railway Company (JR Shikoku) on local services in Shikoku, Japan.[1][2]
Design
The 121 series design is based on the earlier 105 series, with lightweight stainless steel bodies.[1]
-
DT21T trailer bogie
Operations
The sets are based at Takamatsu Depot and operate on the Yosan Line and Dosan Line in 2-, 4-, or 6-car formations.[2][3]
Formations
As of 1 October 2015, the fleet consists of 19 two-car sets formed of one motored "Mc" car and one non-powered "Tc" trailer car as shown below with the motored "Mc" cars at the Takamatsu end.[2][3]
| Designation | Mc | Tc' |
|---|---|---|
| Numbering | KuMoHa 121 | KuHa 120 |
| Weight (t) | 42.0 | 28.0 |
| Capacity (total/seated) | 118/62 | 118/62 |
The "Mc" cars are each fitted with one S-PS58 lozenge-type pantograph.[3]
-
KuMoHa 121-14, December 2007
-
KuHa 120-14, December 2007
Interiors
Seating is arranged as a mix of transverse seating bays and longitudinal bench seats.[2] The sets are not equipped with toilets.[3]
-
Interior view, September 2007
History
The 121 series sets were introduced from 23 March 1987.[2] The sets were originally delivered with magenta "Red No. 20" bodyside stripes, but were repainted with JR Shikoku corporate light blue ("Blue No. 26") bodyside stripes during September and October 1987 following privatization of JNR.[2]
In 2011, two sets (numbers 001 and 002) were modified for wanman driver only operation. These sets were repainted with their original JNR-style magenta bodyside stripes.[3]
-
121 series sets in original JNR livery, circa 1987
-
Modified driver-only set 001 in April 2012
References
 |
Wikimedia Commons has media related to 121 series. |
- 1 2 Haraguchi, Takayuki (2009). Encyclopedia of JR's Railway Cars: ＪＲ全車輌. Japan: Sekai Bunka. p. 75. ISBN 978-4-418-09905-4.
- 1 2 3 4 5 6 JR全車輌ハンドブック2009 [JR Rolling Stock Handbook 2009]. Japan: Neko Publishing. 2009. p. 256. ISBN 978-4-7770-0836-0.
- 1 2 3 4 5 JR電車編成表 2016冬 [JR EMU Formations - Winter 2016] (in Japanese). Japan: Kotsu Shimbunsha. 18 November 2014. p. 205. ISBN 978-4-330-62315-3.
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