The Y 7100 class of small shunters originally had 210 members. The first 130 were built by Billard

Billard

Établissements Billard was a French railway rolling stock construction company based in Tours. It specialised in light railbuses and metre gauge and narrow gauge rolling stock...

, with the remaining 80 by Decauville. They have the 0-4-0

0-4-0

Under the Whyte notation for the classification of steam locomotives, 0-4-0 represents one of the simplest possible types, that with two axles and four coupled wheels, all of which are driven...

 ("B") wheel arrangement, 150 kW diesel engine

Diesel engine

A diesel engine is an internal combustion engine that uses the heat of compression to initiate ignition to burn the fuel, which is injected into the combustion chamber...

s and hydraulic transmission

Hydraulic drive system

A hydraulic drive system is a drive or transmission system that uses pressurized hydraulic fluid to drive hydraulic machinery. The term hydrostatic refers to the transfer of energy from flow and pressure, not from the kinetic energy of the flow....

. They can be found all over the French network.

Y 7192 was converted to mechanical transmission and renumbered as Y 7001. This locomotive was the prototype for the Y7400

SNCF Class Y 7400

The Y 7400 class of small shunters is France's most numerous with 488 locomotives in the production build. The first 120 were built by Deauville, with further batches built by De Dietrich and Moyse . They have the 0-4-0 wheel arrangement, 150 kW diesel engines and mechanical transmission...

 class.

Operators

In addition to SNCF, VLFI have purchased four Y 7100 locomotives (numbers 7172, 7200, 7214 & 7245) from SNCF. two further locos are recorded in use in the Port of Rouen (Grand port maritime de Rouen french).

External links

• Fleet list (SNCF):