[wubbfindel]

Being able to operate with no atmosphere (e.g. outside of the ISS) would be an advantage I suppose.

[eeZah7Ux]

Yet, the translation movements are done using fans. Perhaps it's a prototype and future version will operate outside.

[wubbfindel]

Yup, I misread. I was thinking you meant what would be the benefit of not using fans at all.