Sperry's original plan was to build and sell the cars and to also offer contract services, but the railroads for the most part preferred to simply contract with Sperry for scanning services and not own the cars themselves. (I'd guess that was a cost/benefit thing.)








Hi Rail vehicles are neet. You pull up to the track, get the front tires on the rails, drop the front track wheels, and then pull forward until the rear lines up and them you drop the rear wheels. (At least, that's how the process has been described to me.) The track wheels steer and (on this unit) brake; the rubber tires run on top of the rails and drive and brake.


Some Hi Rail vehicles don't have brakes on the track wheels - they use the regular rubber tires for driving and braking. I suspect this thing is heavy enough that it needs a bit more. (From the looks of it, there is a second engine in the box to power the equipment.)









