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| gauge = {{RailGauge|sg}}, <!-- See Montreal Metro! --> rubber tired wheels outside of the steel wheels. & + | powersupply = 750 V DC etc
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{{Short description|Paris Metro train, 1956-1999}}
{{No footnotes|date=April 2020}}
{{Infobox EMU
{{Infobox EMU
| name = MP 55
| name = MP 55
Line 5: Line 7:
| caption = Model of the MP 55.
| caption = Model of the MP 55.
| background = #8FD5BB
| background = #8FD5BB
| manufacturer = [[Alstom|GEC Alsthom]]
| manufacturer = [[Alstom|GEC Alsthom]]
| operator = [[Régie Autonome des Transports Parisiens|RATP]]
| operator = [[Régie Autonome des Transports Parisiens|RATP]]
| formation = 4 per trainset
| formation = 4 per trainset
| numberbuilt = 68 cars
| numberbuilt = 68 cars
| lines = [[Paris Métro Line 11|Line 11]]
| lines = {{R-I|paris|m}}{{nnbsp}}{{R-I|paris|m|11}}
| service = 1956 - 1999
| service = 1956–1999
| capacity =
| capacity =
| maxspeed =
| maxspeed =
| acceleration = {{convert|1.30|m/s2|ft/s2|abbr=on}}
| acceleration = {{convert|1.30|m/s2|ft/s2|abbr=on}}
| powersupply = 750 [[Volt|V]] [[Direct current|DC]]
| powersupply =
| electricsystem = Guidebars on either side of the [[Railway track|track]]
| electricsystem = 750 [[Volt|V]] [[Direct current|DC]] [[Guide bar]]s on either side of the [[Railway track|track]]
| collectionmethod = Horizontal [[contact shoe]]<br>A vertical contact shoe sliding on the [[Rail profile|rails]] provides [[Ground (electricity)|grounding]].
| collectionmethod = Horizontal [[contact shoe]]<br>A vertical contact shoe sliding on the [[Rail profile|rails]] provides [[Ground (electricity)|grounding]].
| gauge = {{RailGauge|sg}}, <!-- See [[Montreal Metro]]! --> [[rubber]] [[tire]]d [[wheel]]s outside of the [[steel]] wheels.
| gauge = {{RailGauge|sg}}, <!-- See [[Montreal Metro]]! --> <br>with [[running pad]]s for the [[rubber]]<br> [[tire]]d [[wheel]]s outside of the [[Rail profile|steel rails]].
| poweroutput =
| poweroutput =
}}
}}


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


== Conception ==
== Conception ==


After the successful testing of the [[MP 51]] on the ''la voie navette'' segment (connecting track) between [[Paris Métro Line 3bis| Line 3bis]] and [[Paris Métro Line 7bis| Line 7bis]], the RATP decided to order 71 new train cars to equip Line 11, since the line contained a steep grade. The first train was delivered beginning on October 1, 1956 and went into service on November 8, 1956, with all 17 trains were in service by October 1957.
After the successful testing of the [[MP 51]] test car on the ''la voie navette'' segment (connecting track) between [[Paris Métro Line 3bis|Line 3bis]] and [[Paris Métro Line 7bis|Line 7bis]], the RATP decided to order 71 new train cars to equip Line 11, since the line contained a steep grade. The first train (M.3001-N.4001-AB.5501-M.3002) was delivered beginning on October 1, 1956 and went into service on November 8, 1956, with all 17 trains were in service by October 1957.


== Description ==
== Description ==
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== Refurbishment and retirement ==
== Refurbishment and retirement ==


In 1977, the trains underwent their mid-life refurbishment and received a darker blue livery similar to that of the [[MP 73]]. During the late 1980s, the RATP decided that the MP 55 will need to be retired. Because of this, the trains were not repainted in the RATP's current mint green and white livery, however many trains were fitted with the RATP's current logo. The retirement process began in 1995, with the arrival of the newer [[MP 89|MP 89CC]] trains on [[Paris Métro Line 1| Line 1]], and refurbished MP 59 trainsets from Line 4 gradually replaced all of the MP 55 trainsets. The final train (No. 5503) was retired in January, 1999.
In 1977, the trains underwent their mid-life refurbishment and received a darker blue livery similar to that of the [[MP 73]]. During the late 1980s, the RATP decided that it was time to retire the MP 55. Because of this, the trains were not repainted in the RATP's current mint green and white livery, however many trains were fitted with the RATP's current logo. The retirement process began in 1995, with the arrival of the newer [[MP 89|MP 89CC]] trains on [[Paris Métro Line 1|Line 1]], and refurbished MP 59 trainsets from Line 4 gradually replaced all of the MP 55 trainsets. The final train was retired on January 30, 1999, completing the retirement process.


Nearly all of the MP 55 trainsets were scrapped upon retirement. Only four cars were preserved. Two by the RATP, one by Renault, and the fourth by a private museum.
Unlike the [[Sprague-Thomson]], no MP 55 trainset was safeguarded in its entirety; nearly all of them were scrapped after their retirement. Only four cars were preserved, however: two by the RATP (AB.5517 and M.3011), one by Renault (M.3001), and the fourth by a private museum (M.3030).


== References ==
== References ==
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[[Category:Paris Métro rolling stock|MP 1955]]
[[Category:Paris Métro rolling stock|MP 1955]]
[[Category:750 V DC multiple units]]

{{France-rail-transport-stub}}
{{France-metro-stub}}

[[fr:MP 55]]

Latest revision as of 23:40, 24 December 2024

MP 55
Model of the MP 55.
In service1956–1999
ManufacturerGEC Alsthom
Number built68 cars
Formation4 per trainset
OperatorsRATP
Lines servedParis Métro Paris Métro Line 11
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+1⁄2 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.

Conception

[edit]

After the successful testing of the MP 51 test car on the la voie navette segment (connecting track) between Line 3bis and Line 7bis, the RATP decided to order 71 new train cars to equip Line 11, since the line contained a steep grade. The first train (M.3001-N.4001-AB.5501-M.3002) was delivered beginning on October 1, 1956 and went into service on November 8, 1956, with all 17 trains were in service by October 1957.

Description

[edit]

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.

Side view of the MP 55.

Refurbishment and retirement

[edit]

In 1977, the trains underwent their mid-life refurbishment and received a darker blue livery similar to that of the MP 73. During the late 1980s, the RATP decided that it was time to retire the MP 55. Because of this, the trains were not repainted in the RATP's current mint green and white livery, however many trains were fitted with the RATP's current logo. The retirement process began in 1995, with the arrival of the newer MP 89CC trains on Line 1, and refurbished MP 59 trainsets from Line 4 gradually replaced all of the MP 55 trainsets. The final train was retired on January 30, 1999, completing the retirement process.

Unlike the Sprague-Thomson, no MP 55 trainset was safeguarded in its entirety; nearly all of them were scrapped after their retirement. Only four cars were preserved, however: two by the RATP (AB.5517 and M.3011), one by Renault (M.3001), and the fourth by a private museum (M.3030).

References

[edit]
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