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81-760/761 (Oka, Russian: Ока́, IPA: [ɐˈka]) is a model of subway car used on the Moscow Metro and the Baku Metro. It was designed by Metrowagonmash and is manufactured by Metrovagonmash and Tver Carriage Works.
| 81-760/761 | |
|---|---|
 81-760/761 "Oka" at the depot | |
| In service | 2012-present |
| Manufacturer | Transmashholding (Russia) |
| Built at | Metrowagonmash (Russia) |
| Family name | 81-... |
| Replaced | 81-717/714 |
| Constructed | 2010-2016 |
| Entered service | 2012 |
| Operators | Moskovsky Metropoliten Baku Metro |
| Lines served | Moscow Metro: Kalininskaya line Solntsevskaya line Serpukhovsko-Timiryazevskaya line Bolshaya Koltsevaya lineBaku Metro: Line 1, Line 2 |
| Specifications | |
| Car length | 20.12 m (66 ft 1⁄8 in)/19.14 m (62 ft 9+1⁄2 in) |
| Width | 2.69 m (8 ft 9+7⁄8 in) |
| Height | 3.68 m (12 ft 7⁄8 in) |
| Maximum speed | 90 km/h (56 mph) |
| Weight | 38 t (37 long tons; 42 short tons)/36 t (35 long tons; 40 short tons) |
| Traction system | Metrovagonmash CATP-1 or CATP-2 IGBT-VVVF inverter |
| Traction motors | AC asynchronous motor TADV-280-4 U2, DTA-170, DATM-2 U2 or HS35533-01RB |
| Power output | 680 kW (910 hp) |
| Acceleration | 1.3 m/s2 (4.3 ft/s2) |
| Deceleration | 1.1 m/s2 (3.6 ft/s2) |
| Electric system(s) | 825 V DC |
| Bogies | 2 two-axle bogies |
| Braking system(s) | Dynamic brakes (rheostatic and regenerative), electro-pneumatic |
| Coupling system | Scharfenberg coupler |
| Multiple working | Min 2x 81-760 car, max 81-760 + 6x 81-761 + 81-760 cars. Train + train configuration is not available. |
| Track gauge | 1,520 mm (4 ft 11+27⁄32 in) Russian gauge |
External links
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Wikimedia Commons has media related to 81-760/761.
- Official page of 81-760/761 "Oka", Transmashholding (english version)
- Official page of Metrowagonmash (english version)
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