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SpaceX Discussion Thread


Skylon

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2 hours ago, DAL59 said:

Hey @Ultimate Steve you are always complaining you can't watch spacex launches due to youtube being blocked at school.  However, you can get past this without hacking or downloading vpns and breaking your school device agreement- simply go to Khan Academy, watch a video there, put it to full screen, then click the title of the video- it will open up youtube :)

 

The problem is not that YouTube is blocked - it isn't, and we can watch most videos - the problem is that restricted mode is enabled, which means that most livestreams are blocked. NASA TV is usually okay, but that's the only one I've found.

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49 minutes ago, Barzon Kerman said:

Can you not ask if they can unblock it? Because surely they would consider it educational?

Looks like Restricted Mode content is managed by YouTube directly. However, there is a page to give feedback over stuff that ought not be blocked, and nothing SpaceX seems an obvious violation of their constraints. 

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15 minutes ago, RealKerbal3x said:

So, what happened to Starhopper's nose cone? It didn't appear to be there when they tried to fire the Raptor.

It fell over in a windstorm a month or two ago. Instead of replacing it they're working on the orbital prototype directly.

Edited by Rakaydos
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3 minutes ago, Rakaydos said:

It fell over in a windstorm a month or two ago. Instead of replacing it they're working on the orbital prototype directly.

Yes so the dropped the nose, surprised me quite a bit as I assumed that would be required for the 5 km jump and similar. As hopper is now it don't look very aerodynamic stable. Yes you can compensate with the engine but it will also have to run without trust. 

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The stated timeline for hopper testing was March/April, and for the orbital version in June. They're very likely to hit the first milestone on schedule, but June will clearly also depend on the current hopper tests not resulting in an RUD so they can get the data they need.

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31 minutes ago, CatastrophicFailure said:

expendable Starships

Blasphemy!

UPD. Also, (if I didn’t screw up my calculations) it appears that a fully refueled Starship in a highly elliptical orbit (~GTO) can send ~100t to Pluto. Unreal.

Edited by sh1pman
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1 hour ago, sh1pman said:

Blasphemy!

UPD. Also, (if I didn’t screw up my calculations) it appears that a fully refueled Starship in a highly elliptical orbit (~GTO) can send ~100t to Pluto. Unreal.

Is that on a standard Hohmann transfer orbit? If so, I'd imagine that they'd sacrifice payload capacity for speed in the case of Pluto.

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Now. Let's imagine lightened up Starship - no fins, heatshield tiles removed, number of engines decreased significantly. Then we send this Starship to the Moon's surface. And back to LEO for refuelling and new payload. And to the Moon again. Would we ever need a specialised lunar lander anymore?

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2 hours ago, sh1pman said:

Blasphemy!

UPD. Also, (if I didn’t screw up my calculations) it appears that a fully refueled Starship in a highly elliptical orbit (~GTO) can send ~100t to Pluto. Unreal.

How much to Europa? Enceladus? Titan?

24 minutes ago, Scotius said:

Now. Let's imagine lightened up Starship - no fins, heatshield tiles removed, number of engines decreased significantly. Then we send this Starship to the Moon's surface. And back to LEO for refuelling and new payload. And to the Moon again. Would we ever need a specialised lunar lander anymore?

Do you hear that still, soft ringing in the distance? That’s SLS’s deathbell if Starship works even half this well.  -_-

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39 minutes ago, sevenperforce said:

To be fair, that was already true of FH B3/4.

As I recall FH's C3 was pretty close to Delta IV H when fully expended. Perhaps block 5 even beats that recoverable?

 

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19 hours ago, Rakaydos said:

It fell over in a windstorm a month or two ago. Instead of replacing it they're working on the orbital prototype directly.

The true Kerbal way. If the nosecone is too light, replace it with a stage.

3 hours ago, Scotius said:

Let's imagine lightened up Starship - no fins, heatshield tiles removed, number of engines decreased significantly. Then we send this Starship to the Moon's surface. And back to LEO for refuelling and new payload. And to the Moon again

They were telling, it's a naive early sci-fi...

Spoiler

destination+moon+3.jpg

 

Spoiler

... But this was it.
images?q=tbn:ANd9GcRRwGOpwsBqfVphc12umO-

 

 

Edited by kerbiloid
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6 hours ago, sh1pman said:

Blasphemy!

UPD. Also, (if I didn’t screw up my calculations) it appears that a fully refueled Starship in a highly elliptical orbit (~GTO) can send ~100t to Pluto. Unreal.

Thought of that profile myself, single raptor and empty tanks as injection stage, hypergolic forth braking stage, optionally  an fifth if payload is small. 
Refuel starship and kick stage in LEO, burn starship to GTO or higher, "probe" out of bay and on its way, Starship returns to base, might do an second orbit or two to line up with landing zone. 

Perfect for stuff like Uranus / Neptun orbiter and Europa sample return. 

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14 hours ago, sh1pman said:

Blasphemy!

UPD. Also, (if I didn’t screw up my calculations) it appears that a fully refueled Starship in a highly elliptical orbit (~GTO) can send ~100t to Pluto. Unreal.

I can hear Alan Stern rustling up his Pluto lander paperwork.

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