Power type Diesel-electric AAR wheel arr. B-B | Model Dash 8-40BW Power output 4,000 hp (3,000 kW) | |
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Builder GE Transportation Systems Gauge 4 ft 8 ⁄2 in (1,435 mm) | ||
The Dash 8-40BW, or B40-8W, is a four-axle road diesel locomotive built by GE Transportation Systems for the Atchison, Topeka and Santa Fe Railway (ATSF) in the early 1990s. 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 became part of BNSF Railway, and many of them were repainted into BNSF's "Heritage 2" paint scheme.
Disposition
In mid-2010, BNSF put 15 B40-8Ws up for sale. These units were on long-term lease and were returned to their lessor. Four units have been sold to the Providence and Worcester Railroad in Massachusetts. The PW sold one of their B40-8Ws to the Arkansas-Oklahoma Railroad.