this post was submitted on 24 Nov 2024
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[–] yogthos@lemmy.ml 7 points 1 month ago

some more info

https://www.marineinsight.com/shipping-news/china-builds-worlds-first-boron-ramjet-engine-to-launch-underwater-weapons-at-supersonic-speeds/

looks like boron reacts with water at 700-800 C so maybe they run cooler in water to avoid liquid oxide?