The Atlas Classic N Scale SD-7 Locomotive is based on the prototype manufactured by EMD from February 1952 to November 1953. Utilizing a 1,500 hp engine and a longer underframe than the GP-7, the SD-7 was the first locomotive to use EMD’s Flexicoil truck.

Built by EMD between 1954 and 1959, the SD-9 6-axle road switchers produced 1,750 HP and were used primarily for freight service throughout the US, both on main and secondary lines. Many SD-9 locomotives are still in service today, serving as road switchers for shortline & industrial railroads, and as yard switchers for major “Class 1” lines.

Features:

• Powered low friction drive

• Blackened metal wheels

• Dual brass flywheels

• Directional lighting

• Golden-white LEDs

• Body-mounted AccuMate couplers

Silver Sound Ready

Atlas Silver Sound Ready models are equipped with a speaker for easy conversion to sound with the addition of a decoder.

DCC Operation Features (GOLD LOCOMOTIVES ONLY)

• Supports all DCC-programming modes

• DCC includes RailCom and RailComPlus, with 14, 28 or 128 speed steps and with 2-digit and 4-digit addressing.

• Flexible mapping of function keys F0 to F28.

• A total of 6 DCC function outputs are available, and all can be function mapped (disable, brightness, light effects) individually

• Follows all NMRA DCC standards and recommended practices.

ESU LokSound Features (GOLD LOCOMOTIVES ONLY):

• Over 20 sound effects are available, including engine start-up and shutdown, prime mover sounds through all eight notches, bell, air horn, air compressor, dynamic brakes and more.

• There are up to 16 user-selectable horns, 2 user-selectable bells, and 2 user-selectable synchronized brake squeals.

• Manual and Automatic Notching modes with the ability to change modes ”on the fly” are provided for true realism.