Silly question but at what altitude would we maybe simulate Martian gravity? That feels like the big thing that makes testing helicopter designs for another pla

Silly question but at what altitude would we maybe simulate Martian gravity? That feels like the big thing that makes testing helicopter designs for another planet wildly hard. Would it be possible to build an inflatable test satellite we can test a drone inside of? I wonder what performance sensors NASA wishes it had on Ingenuity. Do they feel confident they have a good model of how it's performing, how it's vibrating shaking & other behaviors? Or would they want more? Great write up by The Reg! Thanks.