MattW
Conductor
Let's say an MP15 can haul itself at a maximum of 50mph (but allowed to be pulled at track speed) while a P42 can haul itself at 110mph. If the "train" is being controlled from the MP15 and the appropriate MU cable is hooked up, would the train be capable of the P42's maximum speed, or would it be stuck doing the MP15's maximum speed. What about when driving from the P42?