// Workers AI · dad joke modeIs the SNCF Class BB 60031 locomotive in a relationship? It's a train-wreck.

PLM 4.DMD SNCF 040.DD SNCF 60030-series
PLM "4.DMD" prototype No. 4-DMD-2 (SNCF No.BB 60032) built 1938, at the Cité du Train museum, Mulhouse, March 2009
Type and origin Power type Diesel-electric Builder FAMH (mechanical) Jeumont (electrical) Build date 1938 Total produced 3
Specifications Configuration: ​  • UIC Bo′Bo′ Gauge 1,435 mm (4 ft 8+1⁄2 in) Wheel diameter 1,120 mm (3 ft 8 in) Wheelbase: ​  • Engine 6.000 m (19 ft 8.2 in)  • Bogie 2.500 m (8 ft 2.4 in) Length 12.200 m (40 ft 0.3 in) Width 3.000 m (9 ft 10.1 in) Height 4.150 m (13 ft 7.4 in) Loco weight 68.5 tonnes (67.4 long tons; 75.5 short tons) Prime mover Sulzer 6LDA25 Aspiration Rateau turbocharger Displacement 94 litre Alternator 355V 353kW Traction motors Jeumont TC 118, 4 off Cylinders 6 Cylinder size 250 by 320 millimetres (9.83 in × 12.6 in)
Performance figures Maximum speed 50 km/h (31 mph) Power output 550 CV (400 kW; 540 hp)
Career Operators PLM SNCF Class PLM: 4.DMD SNCF: 040.DD, later 60030 Withdrawn 1969–1973 Preserved One: 4.DMD.2

The SNCF Class BB 60030 diesel locomotives were built by FAMH / Jeumont for the Chemin de Fer Paris-Lyon-Méditerranée (PLM) in 1938. They were powered by Sulzer engines, producing 550 bhp, and weighed 68.5 tonnes.

Three locomotives were built. They were initially given their PLM numbers – 4.DMD.1 to 4.DMD.3, but were soon renumbered into the SNCF numbering system as 040.DD. to 040.DD.3. In 1962, they were renumbered again as BB 60031 to 60033.

Numbering

Number Built Withdrawn Status 1938 1939 1962 4.DMD.1 040.DD.1 BB 60031 1938 1970 Scrapped 4.DMD.2 040.DD.2 BB 60032 1938 1971 Preserved at Cité du Train 4.DMD.3 040.DD.3 BB 60033 1938 1969 Scrapped

Key: Preserved Scrapped

Preservation

One locomotive, BB 60032, survives in preservation at the French National Railway Museum in Mulhouse.