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A comment on Why car wheels are so flat these days. Parent comment

Re:Why car wheels are so flat these days by NegativeLatency on Wednesday September 14, 2022 @10:48AM (#32838014)
It could be solved but it might not be worth it.

Planes have a whole different set of expectations on their reliability and upkeep.

For example I don’t think people would be excited about an electric car with an aux power unit.

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Re:Why car wheels are so flat these days by Kon-Peki on Wednesday September 14, 2022 @03:32PM (#32842167)
The air brakes used on heavy vehicles (semi trucks, etc) have a very simple fail-safe. You need power to not brake. I.E. Air pressure is used to disengage the brakes. If you lose power/air pressure, the brakes engage and are stuck engaged.
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Re:Why car wheels are so flat these days by HPsquared on Wednesday September 14, 2022 @12:34PM (#32839588)
They already have an auxiliary power unit of sorts: the 12V battery.
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