GE AC44C6M

Specifications
Specifications
Configuration:;
• AAR	C-C
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Trucks	GE HiAd
Wheel diameter	40 in (1,000 mm)
Wheelbase	13 ft 7 in (4.14 m)
Length	73 ft 2 in (22.30 m)
Loco weight	432,000 lb (196 t), full supplies - (fuel oil, lube oil, sand).
Fuel capacity	4,600 US gal (17 kL)
Lubricant cap.	410 US gal (1.6 kL)
Sandbox cap.	40 cu ft (1.1 m3)
Prime mover	GE 7FDL-16
Traction motors	GE 5GEB13B7 AC

Type and origin
Type and origin
Power type	Diesel-electric
Builder	GE Transportation Systems; American Motive Power, Inc; Norfolk Southern;
Model	AC44C6M
Build date	August 2015-present
Total produced	Over 700 (hundreds more planned)

GE AC44C6M
GE AC44C6M
	NS 4068 in Chesterton, Indiana
Power type
Type and origin
Power type	Diesel-electric
Builder	GE Transportation Systems; American Motive Power, Inc; Norfolk Southern;
Model	AC44C6M
Build date	August 2015-present
Total produced	Over 700 (hundreds more planned)
Configuration:;
Specifications
Configuration:;
• AAR	C-C
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Trucks	GE HiAd
Wheel diameter	40 in (1,000 mm)
Wheelbase	13 ft 7 in (4.14 m)
Length	73 ft 2 in (22.30 m)
Loco weight	432,000 lb (196 t), full supplies - (fuel oil, lube oil, sand).
Fuel capacity	4,600 US gal (17 kL)
Lubricant cap.	410 US gal (1.6 kL)
Sandbox cap.	40 cu ft (1.1 m3)
Prime mover	GE 7FDL-16
Traction motors	GE 5GEB13B7 AC
Maximum speed
Performance figures
Maximum speed	75 mph (121 km/h)
Power output	4,400 hp (3,300 kW)
Tractive effort	180,000 lbf (800 kN) (continuous); 200,000 lbf (890 kN) (starting)
Locale
Career
Locale	United States
Current owner	Norfolk Southern, QNS&L, Fortescue Metals Group, Canadian National Railway, Union Pacific Railroad, Wabtec

The GE AC44C6M is an AC-traction 4,400-horsepower (3,300 kW) diesel locomotive, rebuilt from GE Transportation Dash 9 locomotives. AC44C6M rebuilds have been done by GE (now Wabtec), American Motive Power, Inc., and Norfolk Southern Railway's Juniata and Roanoke Shops, starting in September 2015. The AC44C6M retains the 16-cylinder 7FDL-16 prime mover used in the core locomotive prior to rebuilding, but replaces the Dash 9's DC traction motors with alternating current GE 5GEB13B7 traction motors. Externally, Norfolk Southern's Dash 9-40Cs received new wide-nosed cabs, and all rebuilt locomotives have a new hood front section with a new inverter cabinet behind the cab, while retaining the underframe and engine and radiator compartments of the original Dash 9 units.

Rebuilding an old Dash 9 locomotive into an AC44C6M costs only 50-60% that of purchasing a brand new AC locomotive. Wabtec claims a 17% improvement in fuel efficiency, 30% improvement in reliability, and a 55% improvement in haulage capability.