We're learning. This is the second or third time that I have blended the name of a locomotive with the name of the rail service.
I stated, correctly, that "...the Crusader had streamlined locomotives..." and then showed three pictures of streamlined Crusader steam engines. I meant that the Crusader train service had streamlined locomotives, but failed to explain that they eventually replaced their Steam locos with others.
The EMD-FP7A was a streamlined diesel locomotive that replaced the streamlined steam locomotives. A photo is below, but there were slightly different versions. This is a 1968 diesel-electric Crusader.