Let's say we want 15kw input for 10 seconds. I can't imagine it would be putting out a real power of more than 7kw. So we have 8000 watts over 10 seconds to deal with. How will that effect our engine?
specific heat of copper:
0.39 kilojoule/kg
specific heat of iron:
0.45 kj/kg.
So let's say it's 50% copper 50% iron? Won't make much of a difference, idk if that's realistic.
So effective specific heat of 0.42kj/kg, and 1.9kg.
So we have 80k joules to deal with over those 10 seconds. The motor would jump from 25 celsius to 125 celsius.
Which, is nowhere near the currie point. So, frock, maybe it can do 15kw for a few seconds. I'm still skeptical, but I was expecting to find the napkin calculations to say it's absolutely impossible, but maybe it's not. Still, common, it's an unknown brand selling what looks like a well wound motor but certainly no higher quality than an astro.
Edit: Seriously? An astro is only 1kg? This is looking more and more embarrassing for me as time goes on. Maybe it's not so crazy. Edit2: No, my intuition still says this is absurd and nonsense. Then again, I'm not very good with intuition.