Curiosity: 4844th day of the mission

[galbinuscaeli@spacey.space]

@nyrath @pomarede I'm pretty sure "working but ugly" passes the durability test.
Also I think the design life was about 10% of the current life. And still going.

[itseperkele@mastodon.social]

@pomarede ex-tire tech here. I'd say thats below the legal limit for tire tread. Check your local laws and regulations to make sure.

[mnf@mastodon.social]

@pomarede @iFixit

[scaletheory@mastodon.social]

@pomarede

This is the best of the best for the cost of this tire?
NASA, you're fired. WE were ripped off, but fleeced by the oligarchy with too much and gas people who don't need another "dollar" for the rest of their lives.

[sloanlance@mastodon.social]

@pomarede
NASA didn't provide a pit crew‽

[zompetto@mastodon.art]

@pomarede "ain't but a scratch"

[dvshkn@social.treehouse.systems]

@pomarede I remember when that first happened I was wondering if it would affect longevity, but not yet!

[woe2you@beige.party]

@SCALETHEORY @pomarede It was designed for 2 years, it's lasted 13. That's not bad.

[gooba42@mastodon.social]

@pomarede Send up a can of fix-a-flat?

[doubletreble@cupoftea.social]

@acsawdey @pomarede
I haven't seen any of these images no,
We should hang our collective heads in shame, not satisfied with wrecking our home planet, as a species we want to 'boldly go....'

[grb090423@mastodon.social]

@pomarede

Poor Curiosity!

It's done really well!

[michael_w_busch@mastodon.online]

@GalbinusCaeli @nyrath @pomarede

Curiosity was designed to be able to drive even if the wheels are reduced to bare spokes, although not well: https://www.researchgate.net/profile/Wares-Chancharoen/publication/381094274_A_REVIEW_OF_STRUCTURAL_AND_SYSTEM_DESIGN_OF_MARS_ROVER_CURIOSITY_AND_PERSEVERANCE/links/665bf2aa0b0d2845747c008c/A-REVIEW-OF-STRUCTURAL-AND-SYSTEM-DESIGN-OF-MARS-ROVER-CURIOSITY-AND-PERSEVERANCE.pdf .

And the damage to Curiosity's wheels is why Perseverance's have significantly thicker tires.

[robo105@mastodon.social]

@pomarede Where is Canadian Automobile Association when you need it?

[nanobookreview@zirk.us]

@SCALETHEORY @pomarede The mission was designed to last about 700 days, but is now on day ~5000. Undoubtedly the wheels were made as light as they thought they could get away with, because every ounce matters in a rocket launch. If you make something lighter to save weight, it will necessarily be less durable. According to other comments, NASA decided the durability of the wheels wasn't as high as they were hoping and future rovers got thicker wheels, necessarily at the cost of weight.

[raven667@hachyderm.io]

@nazokiyoubinbou @pomarede every gram of weight is hideously expensive to thrust, so the thickness matters, alot. This has already lasted 10x what it needed to for the mission to be successful, so id say they designed it very well for durability, nothing lasts forever.

[nazokiyoubinbou@urusai.social]

@raven667 @pomarede I mean, that's fair enough, but if it had been intended to last longer that would be a problem so easily solved.

If It had torn up more sooner it really would have been bad... The way it could potentially just rip through it seems like it could have failed just with a tiny bit of bad luck even perhaps on day one.

[arensb@mastodon.social]

@pomarede When 4800 sols old you reach, look as good you will not.

[tuftyindigo@meow.social]

@pomarede They should have got Schwalbe Marathons, I'm pretty sure they'd still be going strong

[kintarian@norcal.social]

@pomarede Better call AAA

[nazokiyoubinbou@urusai.social]

@Ann_Effes @pomarede What's the cost if the whole thing failed on day one?