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tech / sci.astro.amateur / Re: This hit fairly hard

Re: This hit fairly hard

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From: clp...@alumni.caltech.edu (Chris L Peterson)
Newsgroups: sci.astro.amateur
Subject: Re: This hit fairly hard
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by: Chris L Peterson - Fri, 29 Apr 2022 13:07 UTC

On Fri, 29 Apr 2022 00:36:33 -0700 (PDT), RichA <rander3128@gmail.com>
wrote:

>https://www.dpreview.com/files/p/articles/3902421462/ingenuity-perseverance-landing-area-april-2022-2.jpeg

Terminal velocity on Mars is about five times greater than that on
Earth. So yeah... things tend to hit hard!

Re: This hit fairly hard

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From: clp...@alumni.caltech.edu (Chris L Peterson)
Newsgroups: sci.astro.amateur
Subject: Re: This hit fairly hard
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by: Chris L Peterson - Sat, 30 Apr 2022 13:51 UTC

On Fri, 29 Apr 2022 17:39:53 -0700 (PDT), RichA <rander3128@gmail.com>
wrote:

>On Friday, 29 April 2022 at 09:07:52 UTC-4, Chris L Peterson wrote:
>> On Fri, 29 Apr 2022 00:36:33 -0700 (PDT), RichA <rande...@gmail.com>
>> wrote:
>>
>> >https://www.dpreview.com/files/p/articles/3902421462/ingenuity-perseverance-landing-area-april-2022-2.jpeg
>>
>> Terminal velocity on Mars is about five times greater than that on
>> Earth. So yeah... things tend to hit hard!
>
>Need a much larger parachute.

Impracticably large, in fact. Which is why they only used a parachute
as part of the slowing down process. The final landing needs to be by
rocket, or something aerodynamic, or an energy absorber like those
giant airbags.

Re: This hit fairly hard

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Subject: Re: This hit fairly hard
From: wsnel...@hotmail.com (W)
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by: W - Sat, 30 Apr 2022 23:29 UTC

On Friday, April 29, 2022 at 8:39:54 PM UTC-4, RichA wrote:
> On Friday, 29 April 2022 at 09:07:52 UTC-4, Chris L Peterson wrote:
> > On Fri, 29 Apr 2022 00:36:33 -0700 (PDT), RichA <rande...@gmail.com>
> > wrote:
> >
> > >https://www.dpreview.com/files/p/articles/3902421462/ingenuity-perseverance-landing-area-april-2022-2.jpeg
> >
> > Terminal velocity on Mars is about five times greater than that on
> > Earth. So yeah... things tend to hit hard!
> Need a much larger parachute.

That component is expendable. It does not need to land softly.

Subject	Author
Re: This hit fairly hard	Chris L Peterson
Re: This hit fairly hard	Chris L Peterson
Re: This hit fairly hard	W