Atlas HO HH600/HH660 Locomotive

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.

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
  • NMRA 8-pin plug for DCC

Sound Features for Gold Series :
(DCC Operation)

  • Supports all DCC-programming modes
  • Flexible mapping of function keys F0 to F28.
  • A total of six DCC function outputs are available
  • Follows all NMRA DCC standards and recommended practices.

Analog (DC) Operation:

  • The LokSound Select Dual-Mode decoder allows your Atlas Gold Series locomotive to be used on DC as well as on DCC layouts.
  • Please note that the Atlas Quantum Engineer will NOT operate an Atlas Gold Series locomotive equipped with a LokSound Select decoder on an analog (DC) layout. However, the sound and lighting functions of the LokSound Select decoder in the Atlas Gold Series HH660 locomotive can be controlled by an easy-to-use basic DCC system
  • Also note that on a DC-powered layout, a DCC and sound equipped locomotive (such as the Atlas Gold Series HH660) CANNOT be consisted with another locomotive that does not also have both DCC and sound. (This statement does NOT apply to DCC-equipped locomotives operating on a DCC layout.)

Sound Functionality:

  • 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 16 user-selectable horns, 2 user-selectable bells, and 2 user-selectable synchronized brake squeals.
  • Manual and Automatic Notching modes with the ability to change modes ”on the fly” are provided for true realism.

 

Check availability of this product on the Atlas Online Store

Silver Item# Road Name Road Number Gold Item #
October 2016
Silver MSRP: $159.95 Gold MSRP: $269.95
HO HH600/HH660 Locomotive - New Paint Schemes!
10 000 421 Undecorated - 10 000 793
10 002 508 Central RR of NJ (Green/Gold) 1021 10 002 518
10 002 509 Central RR of NJ (Green/Gold) 1022 10 002 519
10 002 510 Green Bay & Western "1945 repaint" (Black/White/Red) 101 10 002 520
10 002 511 Milwaukee Road "1959 re-number" (Black/Orange) 982 10 002 521
10 002 512 Milwaukee Road "1959 re-number" (Black/Orange) 983 10 002 522
10 002 513 New Haven (Black/Red-Orange) 0921 10 002 523
10 002 514 New Haven (Black/Red-Orange) 0929 10 002 524
10 002 515 Penn Central "NH patch" (Black/Red-Orange) 9411 10 002 525
10 002 516 Northern Pacific (Black/White) 125 10 002 526
10 002 517 Northern Pacific (Black/White) 126 10 002 527 
Item# Road Name Road Number
September 2013
Silver MSRP: $149.95 Gold MSRP: $259.95
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
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

September 2010
Silver MSRP: $154.95 Gold MSRP: $264.95
Atlas HO HH660 Locomotive
Atlas Master Series Silver - (Without Decoder and Sound) [DCC Ready]
10 000 421 Undecorated -
Back by Popular Demand!
10 000 428 Maine Central (Black w/Red & White Stripes) 951
10 000 429 Maine Central (Black w/Red & White Stripes) 952
New Paint Schemes!
10 001 090 Elgin Joliet & Eastern (Orange/Green) 211
10 001 091 Elgin Joliet & Eastern (Orange/Green) 212
10 001 092 Green Bay & Western (Red w/Gray Stripe) 101
10 001 093 Lackawanna (Black/Yellow) 409
10 001 094 Lackawanna (Black/Yellow) 410
10 001 095 Lehigh Valley (Cornell Red/Black) 116
10 001 096 Northern Pacific (Black/Yellow) 602
10 001 097 Walla Walla Valley (Black/Yellow) 770
10 001 098 Walla Walla Valley (Black/Yellow) 775
Atlas HO HH660 Locomotive
Atlas Master™ Series Gold (With Decoder & Sound)
10 000 793 Undecorated -
First Time with Sound!
10 001 099 Maine Central (Black w/Red & White Stripes) 951
10 001 100 Maine Central (Black w/Red & White Stripes) 952
New Paint Schemes!
10 001 101 Elgin Joliet & Eastern (Orange/Green) 211
10 001 102 Elgin Joliet & Eastern (Orange/Green) 212
10 001 103 Green Bay & Western (Red w/Gray Stripe) 101
10 001 104 Lackawanna (Black/Yellow) 409
10 001 105 Lackawanna (Black/Yellow) 410
10 001 106 Lehigh Valley (Cornell Red/Black) 116
10 001 107 Northern Pacific (Black/Yellow) 602
10 001 108 Walla Walla Valley (Black/Yellow) 770
10 001 109 Walla Walla Valley (Black/Yellow) 775
September 2009
Silver MSRP: $149.95 Gold MSRP: $259.95
Atlas HO HH660 Locomotive - Back by Popular Demand!
Atlas Master Series Silver - (Without Decoder and Sound) [DCC Ready]
10 000 421 Undecorated -
10 000 424 Erie (Black/Yellow) 303
10 000 425 Erie (Black/Yellow) 304
10 000 432 Southern Pacific (Black w/Orange Stripes) 1002
10 000 433 Southern Pacific (Black w/Orange Stripes) 1003
Atlas HO HH600/660 Locomotive - New Paint Schemes!
Atlas Master Series Silver - (Without Decoder and Sound) [DCC Ready]
10 000 781 Boston & Maine (Black/Red/White)† 1161
10 000 782 Boston & Maine (Black/Red/White) 1162
10 000 783 Milwaukee Road (Orange/Red/Gray) 1600
10 000 784 Milwaukee Road (Orange/Red/Gray) 1601
10 000 785 Jersey Central (Green/Yellow) 1020
10 000 786 Jersey Central (Green/Yellow) 1023
10 000 787 New York Central* (Black/White)† 805
10 000 788 New York Central* (Black/White)† 809
10 000 789 Relco RE (Yellow/Black) 601
10 000 790 Relco RE (Yellow/Black) 603
10 000 791 Wabash (Black/White) 100
10 000 792 Wabash (Black/White) 150
Atlas HO HH660 Locomotive - Back by Popular Demand!
Atlas Master™ Series Gold (With Decoder & Sound)
10 000 793 Undecorated -
10 000 794 Erie (Black/Yellow) 303
10 000 795 Erie (Black/Yellow) 304
10 000 796 Southern Pacific (Black w/Orange Stripes) 1002
10 000 797 Southern Pacific (Black w/Orange Stripes) 1003
Atlas HO HH660 Locomotive - New Paint Schemes!
Atlas Master™ Series Gold (With Decoder & Sound)
10 000 798 Boston & Maine (Black/Red/White)† 1161
10 000 799 Boston & Maine (Black/Red/White) 1162
10 000 800 Milwaukee Road (Orange/Red/Gray) 1600
10 000 801 Milwaukee Road (Orange/Red/Gray) 1601
10 000 802 Jersey Central (Green/Yellow) 1020
10 000 803 Jersey Central (Green/Yellow) 1023
10 000 804 New York Central* (Black/White)† 805
10 000 805 New York Central* (Black/White)† 809
10 000 806 Relco RE (Yellow/Black) 601
10 000 807 Relco RE (Yellow/Black) 603
10 000 808 Wabash (Black/White) 100
10 000 809 Wabash (Black/White) 150
July 2008
Silver MSRP: $149.95
HO H600 Locomotive - New Model!
Atlas Master Series Silver - (Without Decoder and Sound) [DCC Ready]
10 000 421 Undecorated -
10 000 422 Elgin Joliet & Eastern (Black/White) 210
10 000 423 Elgin Joliet & Eastern (Black/White) 212
HO H660 Locomotive - New Model!
Atlas Master Series Silver - (Without Decoder and Sound) [DCC Ready]
10 000 424 Erie (Black/Yellow)  303
10 000 425 Erie (Black/Yellow)  304
10 000 426 New Haven (Green/Orange) (Full Balloon) 0923
10 000 427 New Haven (Green/Orange) (Full Balloon) 0930
10 000 428 Maine Central (Black w/Red & White Stripes) 951
10 000 429 Maine Central (Black w/Red & White Stripes) 952
10 000 430 Milwaukee Road (Black/White) 1602
10 000 431 Milwaukee Road (Black/White) 1603
10 000 432 Southern Pacific (Black/Orange Stripes) 1002
10 000 433
Southern Pacific (Black/Orange Stripes) 1003