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mywittyname 3 days ago

Does this motor design scale down? It's not clear from the article - the article focuses more on the relative efficiency gains over the previous model.

A 30lb 1000hp motor doesn't necessarily mean that they can also produce a 3lb, 100hp motor. It would be cool if it did, but I doubt that it does because usually component strength doesn't scale linearly.

That being said, these are still valuable for traditional EVs. Even if they are only a modest weight savings in the grand scheme of modern vehicle weight, their ability to improve packaging options will be a boon. One thing the industry has dicovered is that the generic "skateboard" platform doesn't make for the best vehicles, in terms of packaging.

NathanKP 3 days ago | parent [-]

I'm more fascinated by the question of whether it scales up... imagine much smaller and more efficient electric engines for cruise liners and cargo ships.

RogerL 3 days ago | parent | next [-]

The article and the press release it was derived from says nothing about "more efficient", just smaller.

https://yasa.com/news/yasa-smashes-own-unofficial-power-dens...

jacquesm 3 days ago | parent | prev | next [-]

On a cargo ship the last thing you worry about is weight. To the point that they add ballast.

ApolloFortyNine 3 days ago | parent | prev [-]

Your average cruiseship already has an electric engine, they just have massive generators onboard to power it.

lazide 2 days ago | parent [-]

Notably, it’s probably also not very efficient, and eventually they’ll likely upgrade with some of the improvements from these types of motors to save on fuel.