These may look like the trucks from our "Gas-Electric" locomotive. That is
because they are. These are the original photos, but the trucks have been
completely rebuilt and painted.
Initially, the F7 will be powered and operated from batteries. It is possible
at some point that the Gas-Electric drive will be built into the F7 but that
has not been decided although that was the original intention.
Here is a short video clip of one of the trucks in operation...