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28-pound electric motor delivers 1000 horsepower
(supercarblondie.com)
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this post was submitted on 03 Nov 2025
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Lol:
I feel like we'd need peak horsepower output of a small dog to truly understand this.
A dog's power output comes from its muscle mass, which for a healthy dog is about 45% of its total body weight. This gives our 28-pound dog roughly 12.57 lbs (or 5.7 kg) of muscle.
Studies of animal muscle show that the peak power output of vertebrate muscle tissue during a short, explosive burst (like a jump or the start of a sprint) is around 100 to 200 watts per kilogram of muscle.
Now we can estimate the dog's peak power:
Converting these figures to horsepower (1 horsepower = 746 watts):
So, a small 28-pound dog might be able to generate a peak power of around 0.75 to 1.5 horsepower for a very brief moment.
So this YASA motor is somewhere between 670 and 1,340 times more powerful than the dog it's being compared to in weight. That's some jaw-dropping power output.
I tried to sanity-test the math here running the same calculations on a 700 kg horse, of which around 50% mass is muscle.
700 kg x 50% = 350 kg
Low:
350 kg x 100 W/kg = 35,000 W
35,000 W / 746 ≈ 47 hp
High:
350 kg x 200 W/kg = 70,000 W
70,000 W / 746 ≈ 94 hp
Despite what the term "horsepower" would seem to suggest, a horse can actually output more than one horsepower. Estimates put peak output of a horse around 12-15 hp. By those numbers, even the low end estimate above is around 3-4x too high. We're gonna need more dogs.
I appreciate the sanity check, but just to throw a monkey wrench into your model...
I think the square-cube law will bite you here. I expect power/mass isn't constant. Mass grows faster than cross-sectional area which is key in muscle performance.
Fair
Might be my favorite thread today. Thank you, polite and nerdy strangers.
I accept your terms.
Stop burning the planet down to generate social media comments about shit you don't understand
If I'm not mistaken, you specifically showed an interest in better understanding this.
If it's a Corgi, I would estimate the power output at .1 horsepower max. But if it's a small dog the size of a large dog, then that's something entirely different.
You can talk horsepower and dogpower all day, but I won't really understand until you convert it to bananapower, for scale.
1 dogpower obviously. /s
Americans will use ANYTHING to avoid metric.
What if we compromise on fractional thousandths of a kilodog?
1/1000 of a kilodog is just a dog bro
Something something anything but metric...
Americans will use anything but the metric system