New Paint Schemes!

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Between 1931 and 1940 ALCO built 177 high hood (HH) switching locomotives of various horsepower ratings and body styles. The “HH” models were forerunners to the popular S-series of switchers which featured lower hoods. ALCO’s high hood switchers were in production long before similar models from competitors EMC/EMD (1935) and Baldwin (1937). Interestingly, the “HH” model designation is a term coined by rail historians to describe what ALCO documentation had simply referred to as 600-hp or 660-hp switchers. In later years ALCO had referred to these early units as “high hood switchers” so this designation is appropriate.

Of the 177 high hood switchers built, 104 were HH600s, 18 were HH660s, 21 were HH900s and 34 were HH1000s. Some of the largest users of these models included New Haven, Lackawanna and New York Central. Various physical changes occurred during the 9 years these locomotives were in production. The biggest change occurred in 1934 when ALCO hired industrial designer Otto Kuhler to improve the appearance of their very boxy, utilitarian switchers. The post-1937 production units we are now offering featured many of his suggested improvements.

In 1938 ALCO introduced a line of high hood switchers powered by the new model 538 diesel engine which featured a cast iron engine block. This engine was offered in both a 660-hp (non-turbocharged 538) and 1000-hp (turbocharged 538-T) switcher, each weighing approximately 196,000 pounds. The horsepower rating could be adjusted downward slightly per customer specification by lowering the RPM of the diesel engine. Therefore, 600-hp and 900-hp models were offered concurrently. The HH600 and HH660 locomotive models we are offering were produced from 1938 to 1940 and were externally identical.

Atlas Master Silver MSRP:
$149.95
Altas Master Gold MSRP: $259.95
Arrival Date:
December 17, 2014

Features:

  • All new tooling
  • Early Blunt truck with separate brake cylinders, molded coil spring detail (optional) and metal truck chains
  • Separately-applied metal grab irons and lift rings
  • Separately-applied fine scale handrails and stanchions, coupler cut lever and piping
  • Directional lighting with golden-white LEDs
  • Five-pole skewed armature motor with dual flywheels for optimum performance at all speeds

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)

  • NEW! Quantum Revolution Technology
  • Compatible with the NMRA DCC Standards and RPs
  • Supports 2 and 4 Digit Addressing
  • Programmable acceleration, deceleration & starting voltage
  • Complete sound file downloading supports cut & paste or editing of sound records
  • Analog Control using the Quantum Engineer™: http://www.atlasrr.com/DCC/quantumengineer.htm
  • High quality 16 bit digital sound with 8 Sound Channels
  • Individual, adjustable volume controls
  • Authentic diesel engine sounds; other sounds include air horn/bell, Doppler effect, brake squeal, coupling/uncoupling/air hose parting, and more!
  • Stat Chat, Verbal Audible response to programming commands
  • Sound of Power by Load Conditions
  • Improved Notching and Transitions
  • For more information, please see: http://www.qsisolutions.com/products/q-revolution.html

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.
Item# Road Name Road Number
HO HH600/HH660 Locomotive - New Paint Schemes!
Atlas Master Series Silver - (Without Decoder and Sound) [DCC Ready]
10 000 421 Undecorated -
10 001 579 Atlantic Coast Line* (Purple/Silver) 1900
10 001 580 Boston & Albany (Black/White) 682
10 001 581   Boston & Albany (Black/White) 684
10 001 582 Hoboken Manufacturers (Black/Gold) 601
10 001 583 Louisville & Nashville* (Black/White) 10
10 001 584 Minneapolis & St. Louis (Black/White/Yellow) D-939
10 001 585 Santa Fe† (Black/Silver "Zebra Stripes") 2312
10 001 586 Santa Fe† (Black/Silver "Zebra Stripes") 2320
10 001 587 Southern Pacific (Black/Orange "Halloween") 1002
10 001 588 Southern Pacific (Black/Orange "Halloween") 1003
10 001 589 Tennessee Central (Black/White) 50
*CSX Licensed Product
Products bearing Southern Pacific marks are made under trademark license from Union Pacific Railroad Company.
†Paint scheme accurate for a similar HH1000 locomotive model
Item# Road Name Road Number
HO HH600/HH660 Locomotive - New Paint Schemes!
Atlas Master Series Gold (With Decoder & Sound)
10 000 793 Undecorated -
10 001 590 Atlantic Coast Line* (Purple/Silver) 1900
10 001 591 Boston & Albany (Black/White) 682
10 001 592   Boston & Albany (Black/White) 684
10 001 593 Hoboken Manufacturers (Black/Gold) 601
10 001 594 Louisville & Nashville* (Black/White) 10
10 001 595 Minneapolis & St. Louis (Black/White/Yellow) D-939
10 001 596 Santa Fe† (Black/Silver "Zebra Stripes") 2312
10 001 597 Santa Fe† (Black/Silver "Zebra Stripes") 2320
10 001 598 Southern Pacific (Black/Orange "Halloween") 1002
10 001 599 Southern Pacific (Black/Orange "Halloween") 1003
10 001 600 Tennessee Central (Black/White) 50

*CSX Licensed Product
Products bearing Southern Pacific marks are made under trademark license from Union Pacific Railroad Company.
†Paint scheme accurate for a similar HH1000 locomotive model

 

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