EMD F7?s appeared on American railroads in 1949. They were widely accepted and turned out to be the best selling streamlined cab type units in history. Almost every railroad owned them. All told, there were 2261 F7A?s, and 1420 F7B?s built from Feb. 1949 until December of 1953.

The factory installed Quantum sound system with dual speakers will feature the following:
Dual Diesel Engine Sounds
Horn
Bell
Squealing brakes
Doppler effect
Air let off (in neutral)
Headlight (dim head light in neutral)
Slave (mutes whistle and bell for double heading)

Mechanical features will include:
Powerful 5-pole can motor with flywheel
Die Cast Frame
Many exceptional prototypical added-on details
Prototypical cab interior
Operating headlight
Directional backup light
Lighted number boards
Operating mars light where applicable
Authentic paint scheme and correct locomotive numbers
Magnetic knuckle couplers
RP-25 contour on drive wheels
Will operate on Code 70, 83 and 100 rail
Can be operated on minimum 18" radius curves