| Siemens Charger |
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| Specifications |
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Configuration:
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| • AAR | B-B |
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| • UIC | Bo′Bo′ |
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| Gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge |
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| Trucks | Siemens model SF4 |
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| Wheel diameter | 49–46 in (1,250–1,160 mm) (new–worn) |
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| Minimum curve | 250 ft (76 m) |
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| Wheelbase |
- 9.8 ft (3 m) (per truck)
- 40.8 ft (12.436 m) (between truck centers)
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| Length | 71.5 ft (21.793 m) |
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| Width | 10 ft (3.048 m) |
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| Height | 14.4 ft (4.39 m) |
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| Axle load | 67,500 lb (30,600 kg) |
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| Adhesive weight | 100% |
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| Loco weight | 260,000 lb (120,000 kg) |
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| Fuel type | Diesel |
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| Fuel capacity | - SC-42DM: 1,100 US gal (4,200 L; 920 imp gal)
- SC-44/SCB-40: 1,800 US gal (6,800 L; 1,500 imp gal)
- ALC-42/SCV-42: 2,200 US gal (8,300 L; 1,800 imp gal)
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| Prime mover | Cummins QSK95 |
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| RPM range | 600–1,800 |
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| Engine type | 45° V16, four stroke cycle |
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| Aspiration | Turbocharger |
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| Displacement | 95 L (5,800 cu in) |
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| Traction motors | Four Siemens 3-phase AC induction motors; 978 hp (729 kW) each |
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| Head end power | 660 or 1,000 kW; 3φ, 60 Hz, 480 V AC |
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| Cylinders | 16 |
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| Cylinder size | 5.9375 L (362.33 cu in) |
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| Transmission | AC–DC–AC |
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| Loco brake | Dynamic, regenerative, electropneumatic |
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| Train brakes | Electropneumatic |
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| Safety systems | Positive train control: ACSES II, I-ETMS |
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| Performance figures |
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| Maximum speed | 125 mph (200 km/h) |
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| Power output | - SC-42DM (third rail): 2,100 hp (1,600 kW)
- SCB-40: 4,000 hp (3,000 kW)
- ALC-42/SCV-42/SC-42DM (Diesel): 4,200 hp (3,100 kW)
- SC-44: 4,400 hp (3,300 kW)
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| Tractive effort | - Starting (Diesel): 290 kN (65,000 lbf)
- Continuous (Diesel): 275 kN (62,000 lbf) @ 16 mph (25 km/h)
- Starting (third rail): 250 kN (56,000 lbf) to 12.5 mph (20 km/h)
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| Factor of adh. | 4.07 (24.57%) |
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| Data refers to the following except where noted: |
The Siemens Charger is a family of diesel-electric passenger locomotives built by Siemens Mobility for use in North America. The Charger family includes several variants developed for specific operators and service types including long-distance, inter-city and commuter rail.
The SC-44 model is used primarily for state-supported inter-city routes and commuter rail services. The SCB-40 variant was developed for Brightline in Florida, while the SCV-42 is used by Via Rail in Canada. Amtrak operates the ALC-42 for its long-distance routes and has ordered the ALC-42E, a dual-mode version capable of operating on overhead electric power, for routes that travel over portions of the Northeast Corridor; Charger-family locomotives will eventually replace the aging GE Genesis fleet. A third rail dual-mode version, the SC-42DM, is also available.
The first production Charger locomotive, an SC-44, was unveiled on March 26, 2016, and began revenue service on August 24, 2017. Charger locomotives are often paired with Venture passenger cars, also manufactured by Siemens, as part of a trainset.