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[–] 129 points 3 years ago (1 child)

the maximum output of a horse can be up to 15 horsepower,

That's the problem. The unit was not developed on the maximum power a horse could put out. It was intended to be what a typical horse could continuously sustain throughout the work day.

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  • [–] 4 points 3 years ago

    Also why switching horses was a thing: a fully rested horse could run at a higher hp, then change horses and the new one could keep outputting thevhigher up whilecthe previous one rested.

    Like switching rechargeable batteries, only the battery was the horse.

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