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What is “hydrogen-electric”? Or is that just a convenient way to call a liquid hydrogen fuelled vehicle an “eVTOL” so you don’t need a new tag on your blog-news site lol
So the marketing material has arrays of electric ducted fan engines and a ton of batteries next to a hydrogen tank. I couldn’t find how the hydrogen is being used to charge the batteries.
Hydrogen fuel cell is a thing and can use hydrogen to directly generate electricity with up to 60% efficiency.
Hydrogen energy density seems good on paper, but the storage and fuel cell systems add a lot of weight. That’s why all the other electric flight companies are using batteries, they simply perform better.
