This pack offers you a scratch-built model of an EMD GP9 locomotive in four Boston & Maine liveries: the as-delivered 'Bluebird' livery, the simplified livery with white stripes, the Bicentennial livery, and the late livery with large Boston & Maine lettering on the long hood.
This locomotive was built from parts of my earlier SD7 model and has essentially the same functionality: basic cab controls and TS12 effects, but there aren't any advanced scripting features like for instance a start-up sequence.
The models feature custom couplers, dynamic numbers (real roster numbers), light effects and window rain effects, animated wipers, and cab controls.
The animated roof fans were modeled by Dan Vystrcil of Virtual Rail Creations and are used with permission. To see more of the fantastic VRC models, please stop by at their website: http://vrailcreations.net/
The engine comes ready to run with its physics and simulation parameters based on the default F7, so it will perform similar to it (albeit a bit more powerful, the GP9 being a bit more powerful than the F7). Sounds are also aliased to the default F7. Please note that due to these aliased components, you must own the US Loco & Assets Pack: http://store.steampowered.com/app/208306/, which most users will already have. See below for more details.
The engines are Quick Drive ready, a single-unit consist has been supplied for each of the four engines included in this add-on.