On one of the picture in the Locomotive pack, release anonce, on the top of a viaduct there is a train which show 2 F7 locomotive with 2 crew wagon, and the one below the viaduc shows 2 F7 locomotive with 1 crew wagon. Why is the train on the top of the viaduc as 2 crew wagon, when the one below only as 1 crew wagon
Crew wagon? Are you talking about the B-Units? The B units are basically cabless units, controlled by the A units. The amount of them in a consist is like adding or removing a standard loco from a normal freight train.
I do not know what the B-unit is What I am talking about is the crew wagon right each of the locomotive on the above the viaduc, or the crew wagon in between the 2 locomotive on the train below the viaduc
The B-unit is what you are calling the crew wagon. It is not a crew wagon, it is an engine without a cab.
so it would then be used a generator to provide electrical power to the train, but there is no passenger wagon
No, it's just a locomotive without a cab. The b-units have no way of carrying passengers. Interestingly on Clinchfield in TSW sometimes they'd accidentally be used as locos because of a substitution bug.
It is not a generator for a passenger train. It is a locomotive designed to always be remotely controlled from an A unit (the one with the cab).
Think of it as another loco that is always used in conjunction with a loco with a cab, so doesn’t need a cab of its own. There are no passenger wagons as it is a only used as a freight train in this DLC.
No, before the introduction of HEP, power was provided by Steam Generators, either in their own car, or from certain locomotives. The F7A and F7B were not equipped with steam generators. Example of a ATSF steam generator car.
Units like the F7s are flexible because the amount of A- and B-units can be adjusted to provide as much power as needed. The F-units didn't do very well as switchers due to poor visibility but were great on passenger and freight runs, which is what they spent most of their time doing. The variations could be anything as long as the driver could see out of the front. You could have just one A-unit, an A and a B behind it, an A, two Bs and another A completing the sandwich, an A and 58 Bs* - whatever was needed could be done and without needing to pay for expensive cab equipment the B-units were good for achieving that. *The idea of 58 B-units is sarcastic and likely impossible, and definitely never done in service. Still, I'll probably see what it looks like in Train Simulator tomorrow.
IIRC, there is an actual limit of how many B-Units you could theoretically have controlled by a single A unit. Not sure what the number is, but the Chicago Great Western was one railroad that pushed those limits.
So if I understand all of you, the train above the viaduct would have 4 locomotive and the one below 3 locomotive Then why is there a "real" locomotive facing the cargo wagons
