I thought that was ducted props? | Hacker News

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tbrownaw on May 26, 2023 | parent | context | favorite | on: DARPA’s silent MHD magnetic drives for replacing n...

I thought that was ducted props?

cwillu on May 26, 2023 [–]

The book has ducted props (which is where the distinctive noise comes from, a unexpected resonance from the length of the duct), the movie substituted MHD for the impeller.

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