User:CarrotPieFI/sandbox/VR Class Sm8
| VR Class Sm8 | |
|---|---|
 Sm4 unit at Helsinki Central station. | |
 Sm4 passenger compartment interior. | |
| Stock type | Bi-mode multiple unit (BMU) |
| In service | 2024- |
| Manufacturer | Stadler |
| Assembly | Bussnang, Switzerland |
| Built at | Bussnang, Switzerland |
| Family name | Stadler FLIRT |
| Replaced | Sm2, Dm12, Dv12 |
| Constructed | 2022-2025 |
| Entered service | 2024 |
| Number built | 30 |
| Number in service | 30 |
| Formation | 2 cars, length 40,200 mm (131 ft 11 in) 4 cars, length 75,200 mm (246 ft 9 in) |
| Design code | Sm8 |
| Fleet numbers | 8201+8251 - 8215+8265 (2-car) 8401+8451 - 8415+8465 (4-car) |
| Capacity | 156 (2-car), 329 (4-car) |
| Operators | VR Group |
| Depots | Pieksamäki, Kouvola (light maintenance and stabling only), Oulu (light maintenance and stabling only), Tampere (stabling only), Imatra (stabling only) |
| Lines served | All regional lines in Finland |
| Specifications | |
| Car body construction | Aluminium |
| Train length | 57,700 mm (189 ft 4 in) |
| Car length | 20,100 mm (65 ft 11 in) (driving cars), 17,500 mm (57 ft 5 in) (trailing cars) |
| Width | 3,240 mm (10 ft 8 in) |
| Height | 4,550 mm (14 ft 11 in) |
| Floor height | 600 mm (23.6 in) (low floor areas) 1,120 mm (3 ft 8 in) (over bogies) |
| Low-floor | 75% |
| Platform height | 200 mm (7.9 in) 550 mm (21.7 in) |
| Doors |
|
| Articulated sections | 2/4 |
| Wheel diameter | 860/800 mm (powered/unpowered) |
| Wheelbase | 2,700 mm (8 ft 10 in) (powered) 2,750 mm (9 ft 0 in) (unpowered) |
| Maximum speed | 160 km/h (99 mph) (electric) 140 km/h (87 mph) (diesel) |
| Weight | 79 t (78 long tons; 87 short tons) 141 t (139 long tons; 155 short tons) |
| Traction system | 2/5 × TSA TMF 59-39-4 |
| Power output | 1,200 kW (1,609 hp) (2-car, electric)
950 kW (1,274 hp) (2-car, diesel) 2,000 kW (2,682 hp) (4-car, electric) 1,500 kW (2,012 hp) (4-car, diesel) |
| Tractive effort | 250kN (up to 47 km/h (29 mph), electric) 200kN (up to 39 km/h (24 mph), diesel) |
| Acceleration | 1.3 m/s/s (4-car, electric)
1.2 m/s/s (2-car, electric) 0.95 m/s/s (diesel) |
| Deceleration | 1.35 m/s/s (normal service brake) 1.55 m/s/s (emergency brake) |
| Electric system(s) | 25 kV 50 Hz AC catenary |
| Current collector(s) | Pantograph |
| UIC classification | A1' 2' 1A' (2-car) Bo' 1A'2' Bo' (4-car) |
| AAR wheel arrangement | A1-2-1A (2-car) B-2-1A-2-B (4-car) |
| Wheels driven | 4 (2-car) 10 (4-car) |
| Bogies | Jacobs |
| Braking system(s) | On electric: Regenerative, dynamic (blended), air (emergency brake only) On diesel: Dynamic, air (blended) |
| Safety system(s) | ATP-VR/RHK |
| Coupling system | Dellner 12 |
| Multiple working | Within class (up to 3 units in passenger service, 4 for stock moves only), with Sm7 units (up to 2 of each) |
| Headlight type | LED |
| Seating | 1+2/2+2 transverse |
| Track gauge | 1,524 mm (5 ft) |
The VR Class Sm8 is a long-distance, bi-mode version of the VR Class Sm7, intended for use across Finland on VR's regional rail network The units are either 2 or 4 cars long, compared to the Sm7's 3 cars, however they have less traction power and a reduced traction package in addition to their diesel engine(s), giving them a lower acceleration rate and lower top speed of 160 km/h (99 mph). They have 2+2 seating, larger, comfier seats, and significantly reduced standing capacity. Sm8 units also run certain short InterCity services, such as Pieksamäki-Tampere, Tampere-Pori and Oulu-Rovaniemi.
Info
[edit]The VR Class Sm8 comes in three variants:
- 2-car, bi-mode
- 4-car, bi-mode
- 4-car, electric only, includes Exstra class.
The 2-car units are intended for use on low-traffic lines, such as Joensuu-Nurmes, Rovaniemi-Kemijärvi and Karjaa-Hanko. 4-car bi-modes are used on more frequented lines, such as those radiating from Haapamäki. The 4-car electric consists are used mainly on the Tampere-Pori route, but also on peak time Y services from Helsinki to Tammisaari.