Prototype Information:

The F-Unit is probably the most recognized diesel locomotive in North American history. It was found on railroads from East to West and North to South. Eastern railroads favored a "Single Headlight" version of the F3, while Western railroads favored a "Dual Headlight" version.

F3 locomotives were used in both freight and passenger service. For passenger service, it was necessary for the locomotives to have a Steam Generator to provide heat and electricity in the passenger cars. In later years, many F3 locomotives originally intended for passenger services were downgraded to freight duty.

Locomotives feature directional Golden White LED headlights and illuminated preprinted numberboards.
Locomotives have a powerful five pole motor with all wheel electrical pickup and blackened wheels.
Locomotives are DCC friendly.