Identification
Just as in the previous FP7, the FP9's carbody is essentially the F9's with 4 feet (1.2 m) extra added a little behind the cab, just aft of the forward truck. Unlike the FP7, the forward porthole window is relocated so that it is better balanced in the space, but there is still more room between the porthole and the first carbody filter grille behind it; it is just less obvious. As on the F9, there is now a carbody filter grille before the window as well.
Read more about this topic: EMD FP9