MP 55

MP 55
Model of the MP 55
In service1956–1999
ManufacturerGEC Alsthom
ReplacedSprague-Thomson
MP 51
Number built68 cars
SuccessorMP 59
MP 89
Formation4 per trainset
OperatorsRATP
Lines served
Specifications
Acceleration1.30 m/s2 (4.3 ft/s2)
Electric system(s)750 V DC Guide bars on either side of the track
Current collector(s)Horizontal contact shoe
A vertical contact shoe sliding on the rails provides grounding.
Track gauge1,435 mm (4 ft 8+12 in),
with running pads for the rubber
tired wheels outside of the steel rails.

The MP 55 was the first generation of the rubber tired variant of electric multiple units used on Paris's Métro system. The trains were manufactured by a consortium between Renault, Brissonneau et Lotz, and Alstom and operated on Line 11 from 1956 to 1999, when they were replaced by refurbished MP 59 stock from Line 4.