GE Dash 8-40BW

Specifications
Specifications
Configuration:;
• AAR	B-B
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Wheel diameter	40 in (1.016 m)
Wheelbase	9 ft 0 in (2.74 m)
Length	66 ft 4 in (20.22 m)
Width	10 ft 1.5 in (3.09 m)
Height	15 ft 4.5 in (4.69 m)
Loco weight	280,000 lb (127,006 kg)
Prime mover	GE FDL

Type and origin
Type and origin
Power type	Diesel-electric
Builder	GE Transportation
Model	Dash 8-40BW
Build date	1990 - 1992
Total produced	84

GE Dash 8-40BW
GE Dash 8-40BW
	BNSF Dash 8-40BW #519
Power type
Type and origin
Power type	Diesel-electric
Builder	GE Transportation
Model	Dash 8-40BW
Build date	1990 - 1992
Total produced	84
Configuration:;
Specifications
Configuration:;
• AAR	B-B
Gauge	4 ft 8+1⁄2 in (1,435 mm)
Wheel diameter	40 in (1.016 m)
Wheelbase	9 ft 0 in (2.74 m)
Length	66 ft 4 in (20.22 m)
Width	10 ft 1.5 in (3.09 m)
Height	15 ft 4.5 in (4.69 m)
Loco weight	280,000 lb (127,006 kg)
Prime mover	GE FDL
Maximum speed
Performance figures
Maximum speed	70 mph (113 km/h)
Power output	4,000 hp (3,000 kW)
Tractive effort	68,000 lb (30,844 kg)
Operators
Career
Operators	See tables
Class	B40-8W
Locale	Western United States
Disposition	One preserved, most in storage, remainder in service

The GE Dash 8-40BW, or B40-8W, is a four-axle diesel locomotive built by GE Transportation for the Atchison, Topeka and Santa Fe Railway (ATSF) between 1990 and 1992. It is part of the GE Dash 8 Series of freight locomotives.

The locomotive model designation is interpreted as follows: B (B type truck arrangement, 2 axles per truck) 40 (4000 horsepower) -8 (the generation when it was designed, in this case meaning the late 1980s) W (Widecab).

ATSF was the only railroad to order the B40-8W, and a B unit (cabless booster unit) was almost made with it, but because the price would have been the same for B40-8Ws with cabs or without, they decided to order units with cabs only.

All of ATSF's B40-8Ws were passed on to BNSF Railway, with some later sold to other railroads.