SpaceX Super Heavy and Starship updates


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Start to finish I'm interested in how they're putting it together and making it work. Complexity level isn't three times what it was -- it's nine on the Booster alone (3^2). Now get the Starship onto it and it rises another order of magnitude to twenty-seven.

 

And that's just for this vehicle.

 

Chances of getting this one back on the first flight? ~30%. Expect bad things to happen, hope for the best. We can bet Elon and the SpaceX brains are simulating this one endlessly to improve the odds. That flight software is gonna be bleeding edge, even by SpaceX standards (which is already bleeding edge but "stable" by comparison). :yes:

 

What I think will happen (if it goes badly) is we'll see the software over-correct on a maneuver and we get out of balance on the way down. Think of the first Falcon 9 attempts in landing on the ASDS. It'll overcorrect and throw the mass out of balance, then the inertia will be on the x-y axis (like those first F9 attempts).

 

~30% that it lands where it's supposed to, another ~10% beyond the 30% that it's off-course and that'll be cause to ditch into the Gulf and/or unzip the tanks and destroy it. I'd like for that to not happen, obviously.

 

My thoughts only and I'm pretty sure it's overblown.

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For those unfamiliar with the McDonnell-Douglas DC-X* this is Flight #8, which is when it performed a "Swan Dive" maneuver much like what Starship will do.

 

DC-X inspired much of the reusability work today at both SpaceX and Blue Origin.

 

* Delta Clipper eXperimental

 

July 7, 1995 at the White Sands Missile Range, NM.

 

 

Black_Day_White_Sands_MAIN_AUG2010.jpg

 

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Oopsie!!

 

Mk1 popped its top during pressurization tests. Looked like a weld unzipped. Musk says they're moving on to Mk3.

 

When he says "quite different" one example seen on Mk2 is the upper dome was built an entirely different way.

 

 

1702958959_Mk1StarshipNov20pressurefailure2.thumb.jpg.ec26fa374ea39345b50813dd636f5c26.jpg

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Bummer. But makes sense to scrap this thing and move on, if the original contruction pops like this you can bet any patch jobs are going to have a hard time doing better. 

 

Hopefully items like the wings and landing gear can be transferred to Mk3. 

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Yep ... this happens. It's what testing is about and even Elon and Gwen have said in the past that if they don't break something they aren't doing it right.

 

All is well. :yes: 

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Clearly, Mk3 and Mk4 get the most attention going forward because their single-piece rings will be more durable & flight worthy. Scavange Mk1.

 

I expect Mk2 will be like the dress-makers dummy.

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Cocoa FL.

 

Vehicle construction is being transferred to the new SpaceX Operations Area at the Kennedy Space Center. Starship Mk2 should be moved there shortly. Smaller fabrication jobs may remain at Cocoa. 

 

Boca Chica

 

The full Super Heavy / Starship pad is under construction. 

 

SpaceX has already begun ring segment production for Starship Mk3 using a new system; an IMCAR Spa fabrication & welding machine.

 

LabPadre stream

post-10859-0-51417200-1574722906.jpg

 

 

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