These locos have all of the same great features as we have come to expect in the latest Atlas loco offerings: dual flywheel equipped 5 pole motor, low friction drive, DCC ready or with factory DCC installed and blackened metal wheels. Check out these great additional features:
- Factory installed AccuMate™ magnetic knuckle couplers
- Painted hand rails and end rails
- Free standing cab sunshades - yet another new Atlas touch!
- And talk about attention to detail! Atlas is offering 6 unique versions of this loco!!! (See "Undec" below).

Prototype information: General Electric’s “Dash 7” locomotive line was introduced as a replacement for the older “Universal/U-Boat-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.
Several features distinguished B23-7s from predecessor models. The long hood stepped outward in the area of the exhaust stack to accommodate a relocated oil cooler. In addition, the frame was 2 feet longer than that of the U23B. An FB-2 style truck was offered as standard equipment on B23-7s, but some railroads opted to use “trade-in” trucks. Therefore, AAR type B and Blomberg trucks could be found on some models. The six power assembly doors (located near the center of the long hood) indicated that the B23-7 was powered by a 12-cylinder GE FDL engine.