The reference for locomotives and railcars
French State Railway B 81500 and B 82500 (Autorail à grande capacité)
France | 2004 | 326 produced
B 81701 of the TER Poitou-Charentes in August 2018 in diesel operation near Chatelaillon
B 81701 of the TER Poitou-Charentes in August 2018 in diesel operation near Chatelaillon

The SNCF's largest order to date were the “Autorail à grande capacité” multiple units. The goal was to replace the previously locomotive-hauled TER trains in regional traffic. They are offered for diesel and electric traction, with the B 81500 and B 82500 combining both types of power. They can run sections with overhead lines electrically with an output of 1,900 kW, while two diesel engines with a total of 1,324 kW are used for non-electrified sections. While the B 81500 is only designed for 1,500 volts direct current and consists of three or four cars, the three-car B 82500 can also be used under 25,000 volts alternating current. All variants have a powered bogie at each end and Jakobs bogies between the cars.

VariantB 81500 three-carB 81500 four-carB 82500
Axle configB-2-2-B B-2-2-2-B 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length188 ft 3 13/16 in238 ft 10 1/8 in
Wheelbase62 ft 7 15/16 in
Fixed wheelbase9 ft 2 1/4 in
Empty weight297,403 lbs359,794 lbs363,762 lbs
Power sourceelectric - DC + diesel-electricelectric - AC/DC + diesel-electric
Electric system1,500 V25,000 V 50 Hz, 1,500 V
Continuous power2,548 hp (1,900 kW)
Top speed99 mph
EngineMAN D2842 LE 606
Engine type2x V12 diesel
Fuel793 us gal (diesel)
Engine output1,776 hp (1,324 kW)
Power Plant
Calculated Values
dual power
Bombardier multiple unit
Bombardier AGC
last changed: 09/2023

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