メーカ：アサーン(Athearn)
スケール：HO 1/87
電源：12V DC

The EMD SD40-2 is a 3,000-horsepower (2,200 kW) C-C diesel-electric locomotive built by EMD from 1972 to 1989.

The SD40-2 was introduced in January 1972 as part of EMD's Dash 2 series, competing against the GE U30C and the ALCO Century 630. Although higher-horsepower locomotives were available, including EMD's own SD45-2, the 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 similar to those of the experimental DDA40X.

Peak production of the SD40-2 was in the mid-1970s. Sales of the SD40-2 began to diminish after 1981 due to the oil crisis, increased competition from GE's Dash-7 series and the introduction of the EMD SD50, which was available concurrently to late SD40-2 production. The last SD40-2 delivered to a United States railroad was built in July 1984, with production continuing for railroads in Canada until 1988, Mexico until February 1986, and Brazil until October 1989.

SD40-2s are still quite usable nearly fifty years after the first SD40 was made, and many SD40s and locomotives from the pre-Dash-2 series (GP/SD 40s, 39s and 38s, and even some SD45s) have been updated to Dash-2 specifications, possibly including downgrading from 20-645E to 16-645E engines, including, certainly, Dash-2 electrical controls, although the pre-Dash-2 frames cannot accommodate the somewhat similar HTC truck in the space allocated to the Flexicoil C truck (the frame is not long enough). Most SD40-2s which remain in service have by now been rebuilt "in-kind" for another 30 to 40 years of service, although a few (under 30) have been rebuilt to incorporate a 12-cylinder EFI-equipped 710G engine.

Features
Fully assembled and ready-to-run
Coupler cut levers with loops
Trainline and MU hoses with silver ends
"Mushroom" nose vent on right side
Separately applied wire grab irons
Antiglare panel
Standard late Dash-2 4-window cab without louvers or roof seam
See through cab windows
Sliding cab side windows
Welded ECAFB
See-through dynamic brake and radiator fans
Fine scale handrails
Frame mounted bell
Detailed 4000 gallon fuel tank
Separately applied air tanks
Speed recorder attached to appropriate axle per prototype (except undecorated)
McHenry scale knuckle spring couplers
Highly-detailed, injection molded body
Painted and printed for realistic decoration
Bi-directional constant lighting so headlight brightness remains consistent
All-wheel drive with precision gears for smooth and quiet operation
All-wheel electrical pickup
5-pole motor with flywheels and multi-link drivetrain for trouble-free operation
Compatible with ATHG63839 Genesis motor retrofit kit
Window packaging for easy viewing
Interior plastic blister safely holds the model for convenient storage
DCC Ready 8 and 9 pin Quick Plug technology
Available also with factory installed RTR Sound by Soundtraxx
Nickel plated, blackened machined wheels
Wheels with RP25 contours operate on Code 55, 70, 75, 80, 83, 100 rail
Replacement parts available including motor brushes
Minimum radius: 18"
Recommended radius: 22"