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A comment on NASA's Perseverance rover will attempt to land on Mars this week. Parent comment

Re:NASA's Perseverance rover will attempt to land on Mars th... by usefulcat on Wednesday February 17, 2021 @12:13AM (#26162977)
Remove most of the batteries to reduce the weight? Trading flight time obviously. Of course since Martian gravity is only ~.4G, you'd have to remove a lot of weight, so a lot of batteries. On a device that's already been designed to be as light as possible.
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Re:NASA's Perseverance rover will attempt to land on Mars th... by dvdkhlng on Wednesday February 17, 2021 @08:04AM (#26165842)
Unfortunately, changing weight of the helicopter changes also changes inertia and the moment of inertia [1]. On mars, only the gravitational force changes, while inertia stays the same.

That will be somewhat more tricky (or impossible) to emulate on earth.

[1] https://en.wikipedia.org/wiki/Moment_of_inertia

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