General Electric’s “Dash 7” locomotive line was introduced as a replacement for the older “Universal-Series” of the 60s and early 70s. “Dash 7” se­ries improvements included increased fuel efficiency, tractive effort and reliability. The B23-7 was a direct replacement for the 2,250HP U23B model. The first units were produced for Conrail in September, 1977 (ironically, 3 months after the last U23B was delivered to Conrail). Production continued through 1984, with a total of 535 units built. Conrail was the largest purchaser of the model, with a total fleet of 141 units.

Features:

• Directional lighting

• Golden-white LEDs

• Dual brass flywheels

• Low-friction mechanism

• Accurate painting and lettering

• Factory-installed AccuMate magnetic knuckle couplers

Atlas Master Series Silver Additional Features:

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.