25 Apr 2024, 18:08 [ UTC - 5; DST ]
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Post subject: Re: Starship SN-10 - Landed Okay-ish, then the KABOOM Posted: 04 Mar 2021, 19:11 |
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Joined: 04/26/13 Posts: 19975 Post Likes: +19725 Location: Columbus , IN (KBAK)
Aircraft: 1968 Baron D55
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Username Protected wrote: Should they log the bounce as a touch & go? I would.
_________________ My last name rhymes with 'geese'.
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Post subject: Re: Starship SN-10 - Landed Okay-ish, then the KABOOM Posted: 04 Mar 2021, 19:19 |
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Joined: 12/03/14 Posts: 19252 Post Likes: +23622 Company: Ciholas, Inc Location: KEHR
Aircraft: C560V
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Username Protected wrote: Good analysis by Scott Manley https://youtu.be/CF9mdMI1qxMMy assessment is that the hard landing damaged something the prevents venting of the oxygen tank. Could be plumbing, wiring, controls, etc, but for whatever reason, the venting of the oxygen tank was not done. As the oxygen warms up, pressure builds until it the bottom bulkhead fails and pops the rocket into the air. It will be interesting to know the telemetry for tank pressures during the post landing period, *IF* the telemetry was working. The main issue here is the lack of adequate deceleration to touch down. That was a hard crunch. I don't think the landing legs not locking was the main cause, the touch down has to be softer than that regardless of the legs. Mike C.
_________________ Email mikec (at) ciholas.com
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Post subject: Re: Starship SN-10 - Landed Okay-ish, then the KABOOM Posted: 04 Mar 2021, 19:55 |
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Joined: 04/26/13 Posts: 19975 Post Likes: +19725 Location: Columbus , IN (KBAK)
Aircraft: 1968 Baron D55
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Username Protected wrote: So they landed single engine, if they had a twin it would have survived ? Absolutely.
_________________ My last name rhymes with 'geese'.
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Post subject: Re: Starship SN-10 - Landed Okay-ish, then the KABOOM Posted: 04 Mar 2021, 20:00 |
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Joined: 04/26/13 Posts: 19975 Post Likes: +19725 Location: Columbus , IN (KBAK)
Aircraft: 1968 Baron D55
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Username Protected wrote: As the oxygen warms up, pressure builds until it the bottom bulkhead fails and pops the rocket into the air.
The main issue here is the lack of adequate deceleration to touch down. That was a hard crunch. I don't think the landing legs not locking was the main cause, the touch down has to be softer than that regardless of the legs. Agreed on the landing velocity, but the legs matter, both for stability and for shock absorption (crush). The over pressure theory has a lot of merit, but it would have been the Methane tank lower bulkhead that failed. Fuel is in the bottom tank on Starship, oxidizer is amidship.
_________________ My last name rhymes with 'geese'.
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Post subject: Re: Starship SN-10 - Landed Okay-ish, then the KABOOM Posted: 04 Mar 2021, 20:38 |
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Joined: 08/26/15 Posts: 9547 Post Likes: +8782 Company: airlines (*CRJ,A320) Location: Florida panhandle
Aircraft: Travel Air,T-6B,etc*
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Username Protected wrote: Should they log the bounce as a touch & go? Oh man.... touch and goes in complex, high performance twins- and triplets, etc.
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Post subject: Re: Starship SN-10 - Landed Okay-ish, then the KABOOM Posted: 04 Mar 2021, 22:08 |
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Joined: 04/24/18 Posts: 727 Post Likes: +340 Location: NYC
Aircraft: ISP Eagle II SR22 g2
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Username Protected wrote: Should they log the bounce as a touch & go? Touch n Gone?...
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Post subject: Re: Starship SN-10 - Landed Okay-ish, then the KABOOM Posted: 04 Mar 2021, 22:08 |
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Joined: 04/26/13 Posts: 19975 Post Likes: +19725 Location: Columbus , IN (KBAK)
Aircraft: 1968 Baron D55
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Username Protected wrote: Meanwhile, the next day, they recovered the same booster for the 8th time.....for the second time. Like it ain't no thing.... Yeah they have that Falcon thing dialed in pretty well. It wasn’t long ago that they couldn’t land one at all and a lot of people were saying they couldn’t do it. Starship will go the same way. One day it’ll click and they’ll be orbiting them and landing reliably.
_________________ My last name rhymes with 'geese'.
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Post subject: Re: Starship SN-10 - Landed Okay-ish, then the KABOOM Posted: 05 Mar 2021, 01:16 |
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Joined: 06/02/10 Posts: 7259 Post Likes: +4529 Company: Inscrutable Fasteners, LLC Location: West Palm Beach - F45
Aircraft: Planeless
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Username Protected wrote: Meanwhile, the next day, they recovered the same booster for the 8th time.....for the second time. Like it ain't no thing.... Yeah they have that Falcon thing dialed in pretty well. It wasn’t long ago that they couldn’t land one at all and a lot of people were saying they couldn’t do it. Starship will go the same way. One day it’ll click and they’ll be orbiting them and landing reliably.
Elon is quirky, but I’m starting to like his style. I’d love it for him to partner up with some guys to put Mr Fusion home energy reactors in every garage.
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Post subject: Re: Starship SN-10 - Landed Okay-ish, then the KABOOM Posted: 05 Mar 2021, 02:08 |
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Joined: 08/16/11 Posts: 739 Post Likes: +406 Location: Carlsbad, CA - KCRQ
Aircraft: 1967 Bonanza V35
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Username Protected wrote: Elon is quirky, but I’m starting to like his style. I’d love it for him to partner up with some guys to put Mr Fusion home energy reactors in every garage. Don’t want any kabooms on that one though
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Post subject: Re: Starship SN-10 - Landed Okay-ish, then the KABOOM Posted: 05 Mar 2021, 09:07 |
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Joined: 04/26/13 Posts: 19975 Post Likes: +19725 Location: Columbus , IN (KBAK)
Aircraft: 1968 Baron D55
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Username Protected wrote: Elon is quirky, but I’m starting to like his style. I’d love it for him to partner up with some guys to put Mr Fusion home energy reactors in every garage. If he thought it was in any way possible in the near future he'd already be on it. That would come in handy on Mars.
_________________ My last name rhymes with 'geese'.
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