It i smy understanding that the P&W is leasing these engines for the short time because they have several of there own engine down, at least one is in PA having major engine overhaul, and another maybe headed that way also. they are down 2 or 3 other engines waiting for parts...... the B-40 - 8's are surposed to be for the bow/MT Tom coal trains... they should be able to hold down the train with 1 or 2 "B " units. they do not have cab signals so they are restricted as to where they can go.