4 ms·
Physics is on the airplane's side [0]. The drag of rolling over rails, and of going through the dense air at ground level pressure is naturally much worse than
by dexen 7y ago
Physics is on the airplane's side [0]. The drag of rolling over rails, and of going through the dense air at ground level pressure is naturally much worse than that of flying up high for any non-trivial speeds.
Right now the trains may be ahead in some regions thanks to their slow speeds, and thanks to the electrification - with the assumption electricity is generated from sources other than fossil fuel.
But if you tried to set up railway at travel time comparable to airways, you'd quickly find yourself doing away with rolling in favor of maglev or maybe air cushion, and also trying to lower the air drag as much as possible. Both are non-trivial engineering challenges - cue the Hyperloop languishing in protracted development. Both have been solved by air travel decades ago.
Meanwhile electrification of the air travel is already underway. Quiet SSTs[1] are up next. And yes, SSTs are rather fuel efficient, thanks to the even higher operating altitude, and also the natural efficiency of the jets at high speeds.
I will miss the railways. It used to be a great adventure back when I was a kid.
[0] well if you disregard travel time, then the sailing ships would be the kings
[1] relevant: the X-59, and the Boom