Description
By late 1964 ALCO had determined that an extra 100-hp did make a difference to some customers, and the 2,500-hp C425 model was the result. Improvements over the C424 included a higher capacity main generator, a simplified electrical control system, increased radiator capacity and an upgraded 251C prime mover. The appearance of the body was nearly identical to the C424, with one major exception being the addition of a bulge above the radiator intake grille at the rear of the long hood. A total of 90 units were produced between late 1964 and 1966, all for US roads. The largest purchases were made by Pennsylvania and Spokane Portland & Seattle.
Features:
C425 Phase 2 models include cab with either horizontal or vertical headlights per the prototype
Models include redesigned “AAR ” style truck sideframes with separate brake cylinders and separate bearing cap detail (included when appropriate per the prototype).
Directional lighting w/ golden-white LEDs
Five-pole skewed armature motor with dual flywheels for optimum performance at all speeds
Factory-equipped with AccuMate knuckle couplers
Analog version features NMRA 21 pin plug for DCC
Separately-applied wire grab irons, ladders, and drop steps
Separately-applied marker lenses
Improved painting and printing w/painted handrails
Two painted crew members
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.
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.