Thanks bounchfx and throtlekitty And yes the box/wheel things are directional thrusters. They each rotate 20% to the left or right to provide more control of the train for docking and such.
This is my Searchlight prop so far . Need to join together the textures somehow as I ended up with 20+ textures after exporting each piece from substance.
[ https://dl.dropbox.com/u/5675215/polycount%20-%20Do%20Not%20Delete/hiltswaltf.jpg ] (Set of figure drawings; replaced it with a link because it's a really long image) Weee.