Renfe Class 311

The Renfe Class 311 is a class of four axle Bo'Bo' diesel electric shunting and light freight locomotives.

Renfe 311
Renfe 311.001 prototype (1986)
Type and origin
Power typeDiesel-electric
Builder311.0 prototype: M.T.M., Ateinsa, Babcock & Wilcox[1]
311.1: Alstom (Meinfesa), Siemens, Bazán[2]
Build dateprototype 1985
1989-1991[2]
Total produced61[2]
Specifications
Configuration:
​
 • UICBo'Bo'[1]
Gauge1,668 mm (5 ft 5+21⁄32 in)[1]
Wheel diameter1,100 mm (43.31 in)[2]
Length14.200 m (46 ft 7.1 in)[1]
Width2.900 m (9 ft 6.17 in)[1]
Height4.250 m (13 ft 11.32 in)[1]
Loco weight80 t (79 long tons; 88 short tons)[1]
Prime moverMTU 396 B V TC 13[2]
Loco brake311.0 prototype: Vacuum[1]
311.1: Pneumatic, rheostatic[1]
Performance figures
Maximum speed90 km/h (56 mph)[1]
Power output1,065 hp (794 kW)[2]
Tractive effort255 kN (57,000 lbf) @ 7.5 km/h (4.7 mph)[2]
Career
OperatorsRenfe
LocaleSpain

Background and design

The prototype locomotive 311.001 was designed by M.T.M. (Barcelona), Ateinsa (Madrid) and Babcock & Wilcox (Bilbao); the project was led by the Instituto Nacional de Industria.[note 1]

The prototype locomotive led to an order of 60 units, which were assigned to the subclass 311.1, and numbered 311.101 to 311.160.

The transmission system uses 4 axle hung pinion drive three-phase asynchronous motors powered by a three phase alternator driven by a MTU engine partly license built by Bazán. Siemens supplied Sibas-16 microprocessor engine control systems.[3]

The prototype locomotive was initially painted orange with a white stripe, the series production were all given a red/silver livery; standard for Renfe shunting locomotives. Some units have subsequently received a more recent white/grey Renfe livery. As of 2010 most of the units are operated by Renfe Mercancías, about one third have been assigned to the infrastructure company Adif.[4]

Derivatives

The locomotives were a success for the Spanish engineering industry, and the design formed the basis of a number of locomotive types exported from the Meinfesa factory: the SBB Am 841 (40 units 1994), the GA DE900 locomotives for Mexico, Israel and Egypt (35 units, 1997-2000) and the SNCF Class BB 60000 (175 units, 2004-8).[5]

See also

Notes
  1. The locomotives are sometimes known as Mabi from the initials of the companies involved in the design of the locomotive.

References
Renfe 311.140 at Pamplona (July 2005)
  1. Jorge Sanz Mongay. "Serie 311". www.jorges.arrakis.es (in Spanish).
  2. "Caract. técnicas - Material motor - Renfe 311". www.listadotren.es (in Spanish).
  3. "Las modernas locomotoras de maniobras de Renfe de la Serie 311". www.todotren.com.ar (in Spanish).
  4. "ADIF - 311". www.listadotren.es (in Spanish).
  5. "References Vossloh Rail Vehicles". www.vossloh-espana.com. Vossloh Rail Vehicles (Vossloh Espana). Shunting Locomotives.

Sources
Wikimedia Commons has media related to Renfe class 311.
  • Arenillas Melendo, Justo : "La Traccion en los ferrocarriles españoles, Editorial Via Libre, Madrid, 2007
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