This release of the C420 is a low-nose “phase 2” model. All Phase 2 versions will feature the low/vertical mounted engine air intake located ahead of the radiator area on the long hood. Early phase 2 locomotives feature phase 1-style walkways/sills with stanchions mounted into the top walkway deck (referred to as “Phase 2a” models). Later phase 2 locomotives feature a revised configuration where the stanchions are mounted to the sides of the sill (referred to as “Phase 2b” models). Phase 2a production ran from December 1964 through September 1965. Phase 2b units were produced from December 1965 through the end of C420 locomotive production in August 1968.

The Atlas Master™ Series Gold versions of these locomotives are able to use all of the QSI® Quantum System™ sound features on DC layouts with use of the Atlas Quantum Engineer™.

FEATURES:

- Redesigned AAR type B truck sideframes with optional bearing covers
- Flat or ?step? pilots used where appropriate
- Long hood with or without dynamic brake detail used where appropriate
- 3,100 gallon fuel tank

ADDITIONAL FEATURES:

- Separately-applied scale detail parts include: windshield wipers, metal grab irons, coupler cut levers, multiple-unit hoses, train line hoses, fine scale handrails, drop steps, cab sun shades and more!
- See through step detail on sill
- Etched metal radiator walkway
- Painted crew members
- Directional lighting with golden-white LEDs
- 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

Atlas Master Silver Series Additional Features: - NMRA 8-pin plug for DCC (Decoder-ready)

Atlas Master GOLD Series 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 Gold Series 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