| MR-73 | |
|---|---|
 An MR-73 train, February 2009 | |
 Refurbished interior of an MR-73 train | |
| In service | 1976–present |
| Manufacturer | Bombardier Transportation |
| Built at | La Pocatière, Quebec |
| Replaced | MR-63 (rescue) |
| Constructed | 1974–1980 |
| Entered service | June 1976 |
| Refurbished | 2005–2008 |
| Number built | 423[a] |
| Formation | 6 or 9 cars per trainset |
| Fleet numbers |
& 78-001 to 78-141 (trailer) |
| Capacity |
|
| Operators | Société de transport de Montréal |
| Depots | Plateau d'Youville, Saint-Charles, Montmorency, Angrignon, Beaugrand, Côte-Vertu |
| Lines served | |
| Specifications | |
| Car body construction | Lightweight steel alloy |
| Width | 2.5 m (8 ft 2+3⁄8 in) |
| Doors | 4 pairs per side |
| Maximum speed |
|
| Weight | 26,990 kg (59,500 lb) per car (unladen) |
| Traction system | Chopper control (Jeumont) |
| Power output | 174 kW (233 hp) |
| Acceleration | 5.2 km/(h⋅s) (3.2 mph/s) |
| HVAC | Forced-air ventilation, in-train heater |
| Electric system(s) | 750 V DC (nominal) from third rail on guide bars at either track side |
| Current collector(s) | Side-running contact shoe |
| Bogies | 2 sets per car |
| Braking system(s) | Dynamic brakes with STM wooden brake shoes |
| Safety system(s) | ATC/ATO |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) between 2 roll ways |
The MR-73 (Matériel roulant conçu en 1973) is the second generation of rubber-tired rolling stock used on the Montreal Metro. Manufactured by Bombardier Transportation, they entered service in June 1976.
Since the retirement of the first generation MR-63s, the MR-73 trains are in use on three of four Montreal's Metro lines. Replacement of the trains is planned for 2036, when they will be 60 years old.
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