The MP 55 was composed of 4 car trainsets, with three of the cars motorized.
Originally, the trains were painted in a light blue livery and contained soft fluorescent lighting.
Like many trains during the 1950s, the MP 55 trains contained both first class and second class cars.

The maximum acceleration for the MP 55 was restrained at 1.30 m/s² (4.3 ft/s²) for passenger comfort.
The traction equipment used was either electro-pneumatic (EMC) or camshaft electric (Jeumon-Heidmann, or JH) and the braking system used was also of electro-pneumatic type, though a gradual variant was used.
In 1967, automatic drive (ATO) was implemented on all trainsets.
The MP 55 was composed of 4 car trainsets, with three of the cars motorized. Originally, the trains were painted in a light blue livery and contained soft fluorescent lighting. Like many trains during the 1950s, the MP 55 trains contained both first class and second class cars.
The maximum acceleration for the MP 55 was restrained at 1.30 m/s² (4.3 ft/s²) for passenger comfort. The traction equipment used was either electro-pneumatic (EMC) or camshaft electric (Jeumon-Heidmann, or JH) and the braking system used was also of electro-pneumatic type, though a gradual variant was used. In 1967, automatic drive (ATO) was implemented on all trainsets.
MP 55