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Why are maglev trains still rare? (lemmy.ml)

submitted 1 year ago by [email protected] to c/[email protected]

128 comments fedilink hide all child comments

They were invented decades ago.

They have fewer moving parts than wheelbois.

They require less maintenance.

There's obviously some bottleneck in expanding maglev technology, but what is it?

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[–] [email protected] -1 points 1 year ago

Oh man yeah welded joints are just falling apart every week, it takes a fortune to upkeep some stationary metal.

I dont think you understand air's role in aerodynamics. At half atmosphere...you've plainly removed half the friction, there is half the air molecules to collide with the train. To give some perspective, all of the fastest manmade vehicles, by crazy high magnitudes of difference, are space vehicles. The ISS is whizzing around at nearly 5 miles a second in low earth orbit. Air is the limiting factor in speed. Its the only reason any additional fuel needs burning to maintain speed.

Finally...youre not gonna have a fire in a vacuum tube