It's about politics, big business, lawyers and insurance companies...
8) The fate of the SDP40F, involves track-work, in specific locations. Back then, the loco used a steam generator, and a huge water-tank in the rear of the locomotive, caused and unusual sway, which played hell in some seriously deteriorated track(L & N, SCL in Florida, and a particular out-of-gauge diamond out west).
The cause of derailment is attributed to several other factors, one being the type of six-axle truck, however, removing the water tank, steam generator, and adding a porch, the Santa Fe used the locomotive for freight many years. EMD also kept a test bead locomotive at the LaGrange, Ill plant(The Home Of the Diesel Locomotive!).
Yes, Trains mag, has the info, if it is not archived, in the forums.
The GE U28CG and U30CG locomotives, were well worn out by the only owner, Santa Fe, on crack passenger trains, and also freight, by the time the National Railroad Passenger Agency came to be, and no service or parts were included in the NRPA=Amtrak plan. So they were scrapped. They were the only six-axle GE locomotives to use the space between the electrical cabinet, and air filtration cab, for a steam ginny.
The F40PH? Please!...That loco had a special throttle, which allowed the prime mover to drop to run 6 in stations, and sidings, when traction was not needed, however, like the New Jersey Transit U34CH, when it pulled passenger cars, the prime mover always ran in run 8-wide open.
During the lifespan of the F40PH, it was rebuilt several times, and acquired a sound not unlike the 327 Chevy!
Dependability, is the factor which retired the F40PH.
Dependability, is still an issue with the Genesis Series!
I'm glad that EMD continued on Further with the Series 710V12 prime mover in the F59PH, and look!...it's got four axles!
Also, a Series 710V16 prime mover was used with the F69PH, only two were built, but it has a unique car-body, and continues to run.