Aut cum scuto aut in scuto
Seems to be the day for this kind of thing.http://yargb.blogspot.com/2021/06/railplanes.html
Now that looks downright ominous!I never even heard of those railplanes Chuck posted.
I'd say seat belts would be mandatory on that contraption.
Just think of the bajillion mph wind trying to blow your goggles off.