Atlas HO B23-7 Locomotive

New Paint Schemes & Road Numbers!

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.

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.

There were three distinct “phases” of GE 4-axle “Dash 7” locomotive production. Models on this run represent both “phase 1” and "phase 2" units. Phase 1 units feature a 36’2” wheel base and were built through the Spring of 1979. Phase 2 units feature a 37' 2" wheel base, and production lasted from the Spring of 1979 through the Fall of 1980.

Standard MSRP:

$179.95

Decoder-Equipped MSRP:

$289.95

Estimated Delivery:

June 2009

Features:

The Atlas B23-7 locomotive model includes such optional/road name specific details as:
• Pilots with and without anti-climber
• Cab headlights or low-nose headlights
• Cab with 4 or 2 side windows
• Bell mounted under the sill or on the long hood
• FB-2, AAR type B, or Blomberg truck side-frames used where appropriate per road name

Additional Features:

Separately-applied scale detail parts include: windshield wipers, metal grab irons, coupler cut levers, multiple-unit hoses, snow plow, train line hoses, fine scale handrails, and more!
See through step detail on sill
Etched metal radiator grilles
Painted crew members
Factory-equipped with AccuMate knuckle couplers
Coupler pocket designed to accept AccuMate Proto-couplers
Five-pole skewed armature motor with dual flywheels for optimum performance at all speeds
Directional lighting

Atlas Master™ Series Silver Additional Features:

NMRA 8-pin plug for DCC (Decoder-ready)

Atlas Master™ Series Gold Additional Features:

Electronic Dual-Mode® Decoder (e-DMD) that allows your locomotive to run in DCC or traditional DC

QSI® Quantum System™ Features Including:
(Atlas Master Series Gold locomotives only)

Dual speaker system
Authentic diesel engine sounds
Squealing brakes
Doppler effect
Air let-off in neutral
Coupler impact sounds when operated with DCC
Helper mode that mutes the whistle and bell for double heading
And more!

Note: Due to the higher starting voltage required to operate the sound system, it is not possible to MU a non-sound-equipped loco in DC (analog) mode

AccuMate® couplers are made under license from AccuRail, Inc.

(Technical artwork and models from previous run shown)

Item#	Road Name	Road Number	Body Styel
HO B23-7 Locomotive (Low Nose) - New Paint Schemes! Atlas Master Series Silver - (Without Decoder and Sound) [DCC Ready]
8005	Undecorated - "Phase 2" Low Nose without Nose H/L	-	1
8080	Arkansas-Oklahoma Railroad (Red/Yellow)	4059	1
8081	Arkansas-Oklahoma Railroad (Red/Yellow)	4061	1
8082	FNM (Blue/Orange)	9141	2
8083	FNM (Blue/Orange)	9152	2
8084	FNM (Blue/Orange)	9157	2
8085	Metro-North (Red/Blue/Silver)	801	1
8086	Metro-North (Red/Blue/Silver)	802	1
8087	Metro-North (Red/Blue/Silver)	807	1
HO B23-7 Locomotive (Low Nose) - New Road Numbers! Atlas Master Series Silver - (Without Decoder and Sound) [DCC Ready]
8088	Santa Fe (Blue/Yellow)	6366	1
8089	Santa Fe (Blue/Yellow)	6372	1
8090	Santa Fe (Blue/Yellow)	6379	1
HO B23-7 Locomotive (High Nose) - New Paint Schemes! Atlas Master Series Silver - (Without Decoder and Sound) [DCC Ready]
8004	Undecorated - "Phase 1" High Short Hood	-	3
8091	Franklin Industrial Minerals‡ (Gray/Red)	4021	4
8092	Franklin Industrial Minerals‡ (Gray/Red)	4023	4
HO B23-7 Locomotive (High Nose) - New Road Numbers! Atlas Master Series Silver - (Without Decoder and Sound) [DCC Ready]
8093	Norfolk Southern (Black/White)	3976	3
8094	Norfolk Southern (Black/White)	3980	3
8095	Norfolk Southern (Black/White)	3985	3
8096	Southern (Black/Imit. Aluminum)	3970	3
8097	Southern (Black/Imit. Aluminum)	3978	3
8098	Southern (Black/Imit. Aluminum)	3989	3
*CSX Licensed Product ‡Paint scheme is accurate for a Phase 3 B23-7 Loco BS 1: Phase 2 sill, w/anticlimber w/o nose HL BS 2: Phase 2 sill, w/o anticlimber or nose HL BS 3: Phase 1 sill, high nose w/o anticlimber BS 4: Phase 2 sill, high nose w/o anticlimber

Item#	Road Name	Road Number	Body Style
HO B23-7 Locomotive (Low Nose) - New Paint Schemes! Atlas Master Series Gold (With Decoder & Sound)
8105	Undecorated - "Phase 2" Low Nose without Nose H/L	-	1
8180	Arkansas-Oklahoma Railroad (Red/Yellow)	4059	1
8181	Arkansas-Oklahoma Railroad (Red/Yellow)	4061	1
8182	FNM (Blue/Orange)	9133	2
8183	FNM (Blue/Orange)	9153	2
8184	FNM (Blue/Orange)	9173	2
8185	Metro-North (Red/Blue/Silver)	801	1
8186	Metro-North (Red/Blue/Silver)	802	1
8187	Metro-North (Red/Blue/Silver)	807	1
HO B23-7 Locomotive (Low Nose) - New Road Numbers! Atlas Master Series Gold (With Decoder & Sound)
8188	Santa Fe (Blue/Yellow)	6371	1
8189	Santa Fe (Blue/Yellow)	6378	1
8190	Santa Fe (Blue/Yellow)	6381	1
HO B23-7 Locomotive (High Nose) - New Paint Schemes! Atlas Master Series Gold (With Decoder & Sound)
8104	Undecorated - "Phase 1" High Short Hood	-	3
8191	Franklin Industrial Minerals‡ (Gray/Red)	4021	4
8192	Franklin Industrial Minerals‡ (Gray/Red)	4023	4
HO B23-7 Locomotive (High Nose) - New Road Numbers! Atlas Master Series Gold (With Decoder & Sound)
8193	Norfolk Southern (Black/White)	3977	3
8194	Norfolk Southern (Black/White)	3983	3
8195	Norfolk Southern (Black/White)	3984	3
8196	Southern (Black/Imit. Aluminum)	3973	3
8197	Southern (Black/Imit. Aluminum)	3979	3
8198	Southern (Black/Imit. Aluminum)	3988	3
*CSX Licensed Product ‡Paint scheme is accurate for a Phase 3 B23-7 Loco BS 1: Phase 2 sill, w/anticlimber w/o nose HL BS 2: Phase 2 sill, w/o anticlimber or nose HL BS 3: Phase 1 sill, high nose w/o anticlimber BS 4: Phase 2 sill, high nose w/o anticlimber

Home ‡ Online Store ‡ Forum ‡ Atlas O
Atlas Trainman ‡ The Atlas Report