HAHA do they not do good at that speed or somethin? Never been on a train. I've clocked the trains since the tracks follow the roads and some do 50 or 55mph! Thats movin especially with close to 100 or more cars behind them!
With a Hy-Rail truck depends on the track condtions. Welded rail that is in good shape 45 is not an issue. The truck will just glide along. You can call this nap time.
Welded rail or jointed rail that need tamping is another story. Specially with a Super duty crew cab. Hit that at 45 and you feel some stange things. Like the rail gear liftng off the rails.
Those long boats will get a nice bounce going. They will hit a point that the rail gear will lift off the rails then slam back down on them. Makes for a nice thud.
It's then you realize that there is nothing keeping you on the track.
word will follow.
As for the trains. They can do fine at those speeds. Again depending on track conditions. When I was playing with the big trains, Amtrak allowed us 50 MPH max speed on their lines. That was fun cruising with 80-100 cars. Nice smooth ride with the longer trains.
_Providing you have a good engineer.
