The horsepower race was in full swing by the late 1960s when GE introduced the 3,300hp, four-axle U33B locomotive. 137 units were produced between September 1967 and August 1970 when production ended. GE upped the horsepower ante in 1970 with the introduction of the 3,600hp U36B which was produced between May 1970 and December 1974. Both models were externally identical, and internally they were both powered by the same GE FDL-16 cylinder four-stroke engine. The horsepower increase was achieved through adjustments to the fuel rack settings and other internal component changes. One key spotting feature of both models was the built-out radiator “wings” on the long hood.

Atlas’ U33B and U36B model is being offered in both an early and late phase. The early phase model includes flushmounted radiator screens and air intake screens on the long hood. In addition, there is a built-out area on the top of the front and rear pilots. Late phase models include corrugated radiator and air intake screens, with a flat pilot face. An optional separate electrical equipment box is included on the left side walkway behind the cab per the prototype. AAR-B or Blomberg trucks are used when appropriate.

Features:

• All New Tooling

• Factory-installed AccuMate magnetic knuckle couplers

• Blackened metal wheels

• Scale Speed motor

• Accurate painting and lettering

• Optional separate electrical equipment box will be included on the left side walkway behind the cab

• Per the prototype

• AAR-B or Blomberg trucks will be used when appropriate

• Atlas Master Silver version is Sound Ready and equipped with speaker for easy conversion to DCC sound

Silver Sound Ready

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

SILVER SOUND READY FEATURES (SILVER LOCOMOTIVES ONLY):

• Sound ready & equipped with speaker for easy conversion to DCC sound.

• EC24 DCC Plug Equipped

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.

SOUND FUNCTIONALITY 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.

• Equipped with ESU’s Exclusive “Full Throttle” features for ultimate realism in prototype running.