Built in the late 1980s by GE, the DASH 8-40B diesel locomotives were identified by their dynamic brake gear located along the roof line between the cab and engine compartment, with ventilation provided by large roof-top grilles.
These four-axle, high horsepower engines are still in service today in North America.

Designed by GE in the late 1980s for Santa Fe as part of their "super fleet" of locos, the four-axle, high horsepower DASH 8-40BW is still in service today. Amtrak liked the design so much, they had the DASH 8-40BW modified to reflect their new generation of passenger diesels to a DASH 8-32BHW.

Features Include:
-Operating ditch lights (HO DASH 8-40BW/8-32BHW digital units only)
-Realistic die-cast underframe
-Standard cab or gull wing cab as per the prototype (HO DASH 8-40BW/8-32BHW only)
-Five-pole skewed armature motor with dual flywheels for optimum performance at all speeds
-Directional lighting
-Factory-equipped with AccuMate? knuckle couplers
-Painted crew figures
-Separately-installed scale windshield wipers, metal grab irons and fine scale handrails
-Highly detailed coupler cut bars
-Multiple unit hoses and trainline hoses -Snowplow
-Shock absorbers
-Piping on trucks

Atlas Master Series Silver Additional Features:
(Item #s 7200-7266)
-NMRA 8-pin plug for DCC (Decoder-ready)
Atlas Master? Series Gold Additional Features:
(Item #s 9800-9866) -Electronic Dual-Mode? Decoder (e-DMD) that allows your locomotive to run in DCC or traditional DC
QSI Quantum Sound? Features Including: (Atlas Master Series Gold locomotives only)
-Dual speaker system
-Authentic diesel engine sounds
-Squealing brakes
-Doppler effect
-Air let-off in neutral
-Coupler impact sounds when operated with DCC
-Helper mode that mutes the whistle and bell for double heading
-And more!

Note: Due to the higher starting voltage required to operate the sound system, it is not possible to MU a non-sound-equipped loco in DC (analog) mode.