Train Clip: Watch as a Powerful Train Rolls Through a Tight Curve on Gfycat

[jfoldbar]

check out this clip.

http://gfycat.com/PowerfulThornyCanine

if the circle was tight enough, like a corkscrew, could the sideways pulling cause the train to roll in/derail?

 

[Simon Bridge]

It the corner is very tight, the train must slow down or tip over ... it would tip over towards the outside rather than the inside.
You can try this out with a model train, or a slot car set ... but you have seen cars spin-out or tip over going around corners before. The difference with a train is that the tracks stop it slipping sideways ...

 

[NascentOxygen]

If it were brought to a halt in this manoeuvre, there would be a lot of trouble getting the whole lot moving again!