MF 77
The MF 77 (French: Métro Fer appel d'offres de 1977; English: Steel-wheeled metro ordered in 1977) is a steel-wheeled variant of the rolling stock used on the Paris Métro. First used in 1978, it now runs on Lines 7, 8, and 13.
| MF 77 | |
|---|---|
A renovated MF 77 in a station, Paris Métro Line 7. | |
Interior of a refurbished MF 77 | |
| In service | 26 September 1978–present |
| Manufacturer | Alstom, CEM-Oerlikon, Creusot-Loire, ANF-Industry, Jeumont-Schneider |
| Replaced | Sprague-Thomson |
| Constructed | 1976–1986 |
| Refurbished |
|
| Number built | 985 cars (197 trainsets) |
| Successor | MF 19 |
| Formation | 5 cars per trainset |
| Capacity | 574 per trainset |
| Operators | RATP |
| Lines served | |
| Specifications | |
| Car body construction | Aluminium alloy |
| Train length | 77.5 m (254 ft 3 in) |
| Car length | Motor car: 15.48 m (50 ft 9 in) |
| Width | 2.46 m (8 ft 1 in) |
| Height | 3.46 m (11 ft 4 in) |
| Doors | 3 pairs per side, per car |
| Maximum speed |
|
| Weight |
|
| Traction system |
|
| Traction motors | MF5/TAO 679/4ELH 3054 |
| Power output | 1,590 kW (2,130 hp) |
| Transmission | Cardan shaft and axle mounted gear wheel, 1:4.445 ratio |
| Acceleration | 3.2 km/(h⋅s) (2.0 mph/s) |
| Deceleration | 3.6 km/(h⋅s) (2.2 mph/s) |
| Electric system(s) | Third rail, 750 V DC |
| Current collector(s) | Contact shoe |
| Bogies | MTE Cast steel, H shape |
| Braking system(s) | Dynamic, disc |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
Unlike previous models, the MF 77 was designed for travel into the immediate suburbs of Paris, and as a result has a maximum speed of 100 km/h (62 mph) which has yet to be fully utilized. In addition, it sports a new, curved silhouette with a wider midsection. Its original exterior colors, blue and white, led passengers to refer to it as le métro blanc, or white metro.
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