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81-740/741 (Rusich, Russian: Русич), is a type of rolling stock specially designed for running under the harsh winter climate of outdoor Moscow. Rusich also features a corridor connection, allowing passenger access between the two sections of the cars. It was first designed for use on proposed light metro lines such as the Butovskaya line in Moscow (which ended up being the only light metro line built), being similar in nature to some high floor two-segment articulated trams like the rolling stock of the Los Angeles Metro Rail, the Tyne and Wear Metro, and Docklands Light Railway rolling stock in London.
| 81-740/741 | |
|---|---|
 81-740.1/741.1 train | |
| In service | 2003-present |
| Manufacturer | Metrovagonmash (Russia) |
| Built at | Metrovagonmash (Russia) |
| Family name | 81- |
| Constructed | 2002-2013 (all modifications) |
| Entered service | 2003 |
| Capacity | 344/370 passengers (353/382 for .4(K) and .2B) |
| Operators | Moskovsky Metropoliten, Kazan Metro, Sofia Metro |
| Depots | Moscow Metro: MPD-1 Severnoye MPD-3 Izmaylovo MPD-4 Krasnaya Presnya MPD-8 Varshavskoye MPD-16 Mitino Kazan Metro: Ametyevo |
| Lines served | Moscow Metro: Sokolnicheskaya line Arbatsko-Pokrovskaya line Butovskaya lineSofia Metro: 1 2 4 Kazan Metro: All lines |
| Specifications | |
| Car length | 28.15 m (92 ft 4+1⁄4 in)/27.2 m (89 ft 2+7⁄8 in) |
| Width | 2.7 m (8 ft 10+1⁄4 in) |
| Height | 3.57 m (11 ft 8+1⁄2 in) |
| Articulated sections | Two sections per car |
| Maximum speed | 90 km/h (56 mph) |
| Weight | 47 t (46 long tons; 52 short tons)/46 t (45 long tons; 51 short tons) |
| Traction system | IGBT-VVVF inverter Metrovagonmash CATP-1 (Moscow Metro, Kazan Metro) Hitachi VFI-HD2420D (Sofia Metro) |
| Traction motors | AC asynchronous motor 4EFA 1832B (81-740/741) DATE-170-4U2 (81-740.1/741.1) TAD 280M4 U2 (81-740A/741A, 81-740.1/741.1, 81-740.4/741.4) HS35531-01RB (81-740.2/741.2) |
| Power output | 640 kW (860 hp) or 680 kW (910 hp) |
| Acceleration | 1.3 m/s2 (2.9 mph/s) |
| Deceleration | 1.1 m/s2 (2.5 mph/s) |
| Electric system(s) | 825 V DC |
| Bogies | 3 two-axle bogies (2 motorized bogies) |
| Braking system(s) | Dynamic brakes (rheostatic and regenerative), electro-pneumatic |
| Coupling system | Scharfenberg coupler |
| Multiple working | Min 2x 81-740 car, max 81-740 + 3x 81-741 + 81-740 cars. Train + train configuration is not used in regular service. |
| Track gauge | 1,520 mm (4 ft 11+27⁄32 in) Russian gauge 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
They are currently assigned to the metro lines including Sokolnicheskaya, Arbatsko-Pokrovskaya, and Butovskaya lines of Moscow Metro, Kazan Metro and lines M1, M2 and M4 of the Sofia Metro in Bulgaria.
Four main types of Rusich rolling stock were manufactured. 81-740/741, 81-740.1/741.1; 81-740.4/741.4 which are used on the Moscow Metro and in Kazan Metro on the wide Russian gauge, the later having an extra door in the cabless segments. 81-740.2/741.2, 81-740.2B/741.2B is technically adapted and designed for Sofia Metro which uses standard gauge. Besides the 81-717/714 and its derivatives/modifications, it is the only train made by Metrowagonmash to be used outside the former USSR, in the European Union, and to get a modification for a different track gauge.
Its automatic train operation and universal control panel were designed by Tikhomirov Scientific Research Institute of Instrument Design (NIIP).
External links
edit- Official page of 81-740/741 Rusich, Metrowagonmash (English version)
- (in Russian) Unofficial site dedicated to Soviet metro wagon
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