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07-03-2021, 18:44   #406
jogdish
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When is the next test flight?
No idea, but SN11 is stacked and road closures for monday suggest it could roll out onto the launch stand, and maybe the rest of that week to check it over and attached the new raptors to it, which I think are on site ready to go.
Then give another week for a static fire and IF that goes well next thing is FAA approval and closures and flight. I would imagine, week of the 22nd the earliest, but week of April 5th maybe more likely.
SN8 had extensive tests cause it was new, SN9 fell over and needed attention, SN10 had a bad static fire - there is always some delay.
But they have show rapid turn around times so I suppose week of the 15th is possible too it's space X who knows.
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07-03-2021, 19:31   #407
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No idea, but SN11 is stacked and road closures for monday suggest it could roll out onto the launch stand, and maybe the rest of that week to check it over and attached the new raptors to it, which I think are on site ready to go.
Then give another week for a static fire and IF that goes well next thing is FAA approval and closures and flight. I would imagine, week of the 22nd the earliest, but week of April 5th maybe more likely.
SN8 had extensive tests cause it was new, SN9 fell over and needed attention, SN10 had a bad static fire - there is always some delay.
But they have show rapid turn around times so I suppose week of the 15th is possible too it's space X who knows.

Have they identified/announced the cause of the SN10 failure yet?
Is there any point in launching SN11 before then?
Eg. if the legs need to be strengthened.
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07-03-2021, 19:43   #408
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Looking a some slow motion of the Sn10 landing it looks like it's on fire before it touches down. Makes me wonder, even with a softer landing, maybe it might still have had issues. Softer landing wouldn't hurt though
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07-03-2021, 19:45   #409
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Looking a some slow motion of the Sn10 landing it looks like it's on fire before it touches down. Makes me wonder, even with a softer landing, maybe it might still have had issues. Softer landing wouldn't hurt though
Seemed to be a slight bounce as it hit the ground.
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07-03-2021, 19:52   #410
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Seemed to be a slight bounce as it hit the ground.
I think it was Scott Manley covered it in one of his youtube videos that only 3 of the 6 legs locked just before landing. It could be seen in some of the slomo footage.
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07-03-2021, 20:49   #411
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I think it's the LabPadre video that scott was using that showed the landing legs basically flopping around, appearently they need a sudden decelleration kick to help lock them into place on the final approach - the thinking was the three engines might have upset this. In any case those legs are not final and they were never planned to be, I would imagine the main and pretty much only concern is raptors and safe landings i.e no fires.
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08-03-2021, 13:56   #412
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SN11 rolling out to the pad, will be livestreamed on NSF etc, things to look out for, are any raptors already installed ? and Keep and eye on road closures for this week after today as they might tell you about static fires.
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08-03-2021, 14:16   #413
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Originally Posted by jogdish View Post
I think it's the LabPadre video that scott was using that showed the landing legs basically flopping around, appearently they need a sudden decelleration kick to help lock them into place on the final approach - the thinking was the three engines might have upset this. In any case those legs are not final and they were never planned to be, I would imagine the main and pretty much only concern is raptors and safe landings i.e no fires.
Coulda been this one - https://www.youtube.com/watch?v=gIZOcsu8tWk
My fav of the SN10 footage. Slow mo landing and explosion at fantastic angle!

Hopefully SN11 does something crazy before end of the month.
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08-03-2021, 14:24   #414
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My fav of the SN10 footage. Slow mo landing and explosion at fantastic angle!

That is a great Video. Thanks.
SN11 will have the same legs. So will be interesting to see if they can land it. Could be flying end of next week I'd say.
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08-03-2021, 14:26   #415
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Wow, thats the super amazing footage Tim is always on about, looks amazing. I still don't understand how any of these you tube streamers make this into a business model.
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08-03-2021, 14:44   #416
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I think it's the LabPadre video that scott was using that showed the landing legs basically flopping around, appearently they need a sudden decelleration kick to help lock them into place on the final approach - the thinking was the three engines might have upset this. In any case those legs are not final and they were never planned to be, I would imagine the main and pretty much only concern is raptors and safe landings i.e no fires.

Looking at the recent video posted, it doesn't look like it managed to get truly vertical before landing and all the weight was on the leg(s) on the left.

I doubt if the legs are designed to bear the full weight, so they buckled.



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08-03-2021, 23:41   #417
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SN11 is on the pad! With all three raptors, cryo -> static -> hop
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10-03-2021, 10:57   #418
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Looking at the recent video posted, it doesn't look like it managed to get truly vertical before landing and all the weight was on the leg(s) on the left.

I doubt if the legs are designed to bear the full weight, so they buckled.



Musk said on twitter that SN10 came down with more force than was intended due to an engine thrust issue. It crushed the legs as a result and (luckily) ended upright resting on its bottom.

https://twitter.com/elonmusk/status/...widget%3DTweet
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10-03-2021, 11:11   #419
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Those legs are HUGE! first time I have seen a human next to them for scale.
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10-03-2021, 13:20   #420
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As a mechanical engineer with a Ph.D. in composites manufacturing, it's quite ironic to see such big lumps of metal at the bottom of a spacecraft, so much for weight optimization .

Then again, cracks and leaks can easily be repaired on Starship by beckoning over your handy neighborhood welder guy and lobbing on a few extra spot welds where needed. Not so simple with carbon fibre reinforced polymers!
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