81-760/761

For other uses, see Oka.

81-760/761
File:81-760A 37232 in depot.jpg 81-760A "Oka" at the depot.
In service	2012-onward
Manufacturer	Metrovagonmash (Russia)
Built at	Metrovagonmash (Russia)
Family name	81-...
Replaced	81-717/714
Constructed	2010-onward
Entered service	2012
Operator(s)	Moskovsky Metropoliten Baku Metro
Line(s) served	Moscow Metro:  8  Kalininsko-Solntsevskaya  9  Serpukhovsko-Timiryazevskaya
Specifications
Car length	20.12 metres (66.0 ft)/19.14 metres (62.8 ft)
Width	2.69 metres (8 ft 10 in)
Height	3.68 metres (12.1 ft)
Maximum speed	100 kilometres per hour (62 mph)
Weight	37 tonnes (36 long tons; 41 short tons)/36 tonnes (35 long tons; 40 short tons)
Traction system	4 AC asynchronous motors DATE-170-4U2 or TAD 280M4 U2
Power output	680 kilowatts (910 hp)
Acceleration	1.3 metres per second squared (4.3 ft/s2)
Deceleration	1.1 metres per second squared (3.6 ft/s2)
Electric system(s)	825V 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) 1,435 mm (4 ft 8 1⁄2 in)

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 Metrovagonmash and is manufactured by Metrovagonmash and Tver Carriage Works.

External links

• Official page of 81-760/761 "Oka", Metrowagonmash (english version)
• Official page of Transmashholding (english version)