81-760/761

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You can help expand this article with text translated from the corresponding article in Russian. (October 2013) Click [show] for important translation instructions. View a machine-translated version of the Russian article. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing Russian Wikipedia article at [[:ru:Ока_(вагон_метро)]]; see its history for attribution. You may also add the template {{Translated|ru|Ока_(вагон_метро)}} to the talk page. For more guidance, see Wikipedia:Translation.

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 line Baku 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

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.