Athearn HO 72184 SD40-2, Atchison Topeka And Santa Fe #5084

DCC AND SOUND EQUIPPED MODEL

The SD40-2 was introduced in January 1972 as part of EMD’s Dash 2 series, responding to competing products from GE and ALCO. Reliability and versatility of the 3,000-horsepower SD40-2 made it the best-selling model in EMD’s history and the standard of the industry for several decades after its introduction. The SD40-2 was an improvement over the SD40, with modular electronic control systems like those of the experimental SD45X and DDA40X. The last SD40-2 delivered to a United States railroad was built in July 1984, with production continuing for railroads in Canada until 1988.

ATSF FEATURES:
RS3L or K3LA horn on stand, mounted on long hood
Cab air conditioner
Sinclair antennas on ground planes
Small MU stands on front walkway
Headlight moved to nose and opening plated over

Starting in the late 1980s, Santa Fe began to modify their locomotives based on crew feedback. The headlight was moved from the cab to the nose to reduce the amount of glare. The air horn was also moved to the long hood to reduce the amount of noise intrusion into the cab. Not all locomotives were modified at the same time, but by the 1990s many had been modified.

ROAD NUMBER SPECIFIC FEATURES:
#5065 & #5067
Silver horn
Blue anticlimber

#5084
Yellow horn & anticlimber

SD40-2 LOCOMOTIVE FEATURES:
Fully-assembled and ready-to-run
DCC-ready features Quick Plug plug-and-play technology with 21-pin NEM connector
Scaled from prototype resources including drawings, field measurements, photographs, and more
Accurately -painted and -printed paint schemes
Coupler cut levers
Flexible rubber MU hoses for durability
Flexible rubber trainline hose
See-through cab windows
Fine-scale Celcon handrails for scale appearance
Photo-etch stainless steel windshield wipers
Wire grab irons
Detailed fuel tank with fuel fillers, fuel gauges, & breather pipes
Separately applied air tanks
DCC-ready Non-sound version features 21-pin NEM DCC plug
See-through dynamic brake and radiator fans
Exhaust stack
Frame mounted bell (unless noted)
Detailed 4000 gallon fuel tank (unless different capacity is noted)
McHenry scale knuckle couplers – Kadee compatible
All-wheel drive with precision gears for smooth & quiet operation
All-wheel electrical pickup provides reliable current flow
Wheels with RP25 contours operate on all popular brands of track
Bi-directional LED lighting for realistic appearance
Heavy die-cast frame for greater traction and more pulling power
Minimum radius: 18″ – Recommended radius 22″

SOUND-EQUIPPED MODELS ALSO FEATURE:
Dual cube speakers
Onboard DCC+Sound models have full-feature Tsunami2 sound decoder by SoundTraxx
Sound units operate in both DC and DCC
Full DCC functions available when operated in DCC mode
Engine, horn, and bell sounds work in DC
All functions NMRA compatible in DCC mode
Precision slow speed control