M2 (railcar)
| M2/M4/M6 Metro-North Railcar | |
|---|---|
An MTA-owned Budd M2 car at New Haven-Union Station, August 2006.
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| In service | April 1973-2016 |
| Manufacturer |
Budd Company/General Electric/ Canadian Vickers/Avco(M2) Tokyu Car Corporation(M4) Morrison Knudsen(M6) |
| Built at | Erie, Pennsylvania (GE Shops) |
| Family name | Budd Metropolitan |
| Replaced | Kawasaki Heavy Industries M Series rail car |
| Constructed | M2: 1972-1977 M4: 1987-1988 M6: 1993-1995 |
| Entered service | M2: April 1973 M4: late 1987 M6: 1994 |
| Number built | M2: 244 M4: 54 M6: 48 |
| Number in service | M2: 0 M4: 0 M6: 0 |
| Number scrapped | M2: 216 M4: 51 M6: 48 |
| Formation | M2: Married pair M4/M6: Triplet |
| Fleet numbers | M2: 8400-8471, 8500-8571, 8650-8669, 8700-8749, 8800-8849 M4: 8900-8935, 8951-8985 M6: 9000-9031, 9051-9081 |
| Operator(s) |
Penn Central Conrail Metro-North Railroad |
| Line(s) served | New Haven Line |
| Specifications | |
| Car body construction | Stainless Steel |
| Train length | 170 ft (51.82 m) - 1,020 ft (310.90 m) |
| Car length | 85 ft 1 1⁄2 in (25,946 mm) |
| Width | 10 ft 8 in (3,250 mm) (max) |
| Height | 13 ft (3,962 mm) (rail to roof) 14 ft 9 in (4,500 mm) (rail to top of resistor grid shrouding) |
| Floor height | 4 ft 3 1⁄16 in (1,297 mm) |
| Platform height | 4 ft (1,219 mm) |
| Doors | Quarter point, double leaf automatic |
| Maximum speed | 100 mph (160 km/h) (design) 80 mph (130 km/h) (service) |
| Weight | 126,500 lb (57,379 kg) (empty) 142,250 lb (64,524 kg) (full) |
| Axle load | 35,600 lb (16,148 kg) |
| Traction system | - Transformed AC overhead line current fed through mercury arc Ignitron (M2-original) rectifiers to a camshaft resistance motor controller - Transformed AC overhead line current fed through Silicon (M2-rebuilt/M4/M6) rectifiers to a camshaft resistance motor controller - DC third rail current fed directly to resistance controller. |
| Traction motors | 4x 162 hp (121 kW) GE 1259 DC motors |
| Power output | 648 hp (483 kW) @ 25 mph (40 km/h) |
| Tractive effort | 10,000 lbf (44.5 kN) @ 0 mph (0 km/h) 14,200 lbf (63.2 kN) @ 10 mph (16 km/h) 5,565 lbf (24.8 kN) @ 50 mph (80 km/h) 3,878 lbf (17.3 kN) @ 80 mph (130 km/h) 1,900 lbf (8.45 kN) @ 100 mph (160 km/h) |
| Transmission | Electric |
| Acceleration | 1.5 mph/s (2.4 km/(h·s)) - 2 mph/s (3.2 km/(h·s)) (Starting) |
| Deceleration | 3.2 mph/s (5.1 km/(h·s)) (Emergency) |
| Power supply | (?) |
| Train heating | electric heat, air conditioning |
| Electric system(s) |
11-13.5 kV 25 Hz AC (Catenary) 11-13.5 kV 60 Hz AC Catenary 660 V DC Third rail |
| Current collection method | Contact shoe, Pantograph |
| Bogies | GSI 70 |
| Braking system(s) | Pneumatic, dynamic |
| Coupling system | WABCO Model N-2 |
| Multiple working | Yes |
| Track gauge | 4 ft 8 1⁄2 in (1,435 mm) standard gauge |
The M2 railcar was a series of 244 electric multiple unit cars produced for the Metropolitan Transportation Authority and the Connecticut Department of Transportation that ran on the New Haven Line (then part of Penn Central, now part of Metro North). Built primarily by General Electric in a consortium with the Budd Company, Canadian Vickers and Avco between 1972 and 1977, the cars were initially branded as Cosmopolitans. Final assembly of the M2 cars using Budd or Vickers bodies was completed at GE's Transportation Division in Erie, Pennsylvania.
Both the model and brand name followed the pattern set up by the M1/M1A series (the Metropolitans) in use on the Long Island Rail Road (M1) and on Metro-North's Hudson and Harlem lines (M1A). In the late 1980s and early 1990s, the M2 design was licensed by the MTA and ConnDOT to two other companies to produce follow-up series.
All cars were equipped with GE 1259 DC motors with a rated output of 162 horsepower (121 kW) on all axles.
The M2 Cosmopolitan series (#'s 8400-8849) replaced EMU cars dating from the early 1920s to 1954, including the Pullman 4400-series. These were originally manufactured for, and inherited from, the New York, New Haven and Hartford Railroad. As with the cousin M1 series, the M2s accompanied an overhaul of the long-neglected main line and the New Canaan Branch in which longer, high level platforms were introduced along with other infrastructure improvements. The first M2s were accepted for service in April 1973. 144 base order cars were built in 1972-1974, followed by a 100-car option in 1975.
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