dynamic brake

Model Railroader Prototype information for the modeler
1

Hi,I´m Christian,

how can I see if a SD-40-2 have a dynamic brake or not?

Thanks for answer me!

2

Looking at the top, the 3 fans at the very back are the radiator fans.

If dynamic brakes are installed there are 2 fans in the middle atop

of a flared out section. Non dynamics the roof is flat.

http://www.rr-fallenflags.org/ic/ic6008amg.jpg , note the flat section above the road #

http://www.rr-fallenflags.org/bn/bn8066v.jpg , visible fans & resistor grid.

3

Try this shot here.

The front engine has dynamics, the blister above the “25” on the side. The rear engine does not have dynamics, the roof is flat front to back.