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A comment on The axle count of trains in Switzerland must not be a multiple of 2^8. Parent comment
Eight trains would need a gap between them — typically several km per train — so the capacity of the line is increased by having longer trains.
Air resistance would be higher for eight trains.
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Eight trains would need a gap between them — typically several km per train — so the capacity of the line is increased by having longer trains.
Air resistance would be higher for eight trains.