Skylon

SpaceX Discussion Thread

Recommended Posts

3 hours ago, Elthy said:

Dont forget that Starliner has a very low TWR with its Centaur upper stage, too. 2. Stage+Starliner are about 38t while two RL10 engines deliver about 200kN of thrust, so the TWR ist also close to 0.5...

I don't think manned flights will be as heavy as 100 ton, how much do you think the crew area and life support system weight? 
Added weight to the cargo version so hull don't count only the internal parts+ insulation, no reason to use heavy or heat resistant materials here. 
Granted cargo weight don't affect twr much at separation. 
 

Share this post


Link to post
Share on other sites
1 hour ago, tater said:

Well, the road closures May 28/29 at Boca Chica were posted up the thread, so we knew that hopper was supposed to fly on those dates.

 

I think Bezos is right here. Both concepts are predicated on far cheaper access to space, and for large payloads. So for the colony idea, treat that as a given (Starship like, or greater payloads to LEO at prices that rival the cost to FedEx something overnight per kg). Also, human spaceflight down to airline level costs (maybe 1st class RT level, but that order of magnitude).

With those given, moving asteroids is a thing. That solves the materials issue for orbital habitats. Either way, each requires that humans live in 100% built environments. Equatorial LEO beats the Mars surface for radiation protection because Earth has a magnetic field (though the GCR threat is fundamentally the same). The solution at Mars is obviously straightforward (bury habs), whereas orbital colonies have to drag that regolith to the station.

I don't see a colonization path that makes economic sense for either, however.

Yes, I agree more with Bezos here, on Mars the only thing you can do who give funding in this century is science. 
I obviosly want an Mars base but think it will be much more like the south pole base than an town. 
How far can an fully loaded starship jump on Mars and jump back again to base? 
If needed you could set up an refueling outpost on the other side. 

In orbit you have science, you also have space infrastructure like giant antennas and servicing this and other satellites. Probably manufacturing not an option now but people will come up with products and the upper stages tend to go down empty, and the obvious tourism. 

Moon has science, resources, higher dV cost than asteroids but can compete with an coil gun. Tourism again its an week trip ant the trip itself is awesome. 
 

Share this post


Link to post
Share on other sites

Current weather conditions: minor tweetstorm incoming. ...

 

 

 

Soooo... looks like even figuring for ElonTime we should have VacRaps and something recognizable for Superheavy by the end of the year. :cool:

Storm continues:

 

Share this post


Link to post
Share on other sites
9 minutes ago, magnemoe said:

, on Mars the only thing you can do who give funding in this century is science.

I’m sure people will line up to pay a  super-premium price for Moon Gin or Martian Vodka. 

Share this post


Link to post
Share on other sites
Just now, StrandedonEarth said:

I’m sure people will line up to pay a  super-premium price for Moon Gin or Martian Vodka. 

Throw a little (cleaned) regolith in and it becomes real value. :o

people drink mezcal with a worm in it, after all...

Share this post


Link to post
Share on other sites

So this is a thing now... East coast peeps with clear skies might take a look:

 

https://www2.flightclub.io/

 

Share this post


Link to post
Share on other sites
Posted (edited)

 

Edited by tater

Share this post


Link to post
Share on other sites

An image of the rough layout (too tightly packed, however):

 

Share this post


Link to post
Share on other sites
3 hours ago, StrandedonEarth said:

I’m sure people will line up to pay a  super-premium price for Moon Gin or Martian Vodka. 

If you make moonshine on the moon is it just called ‘shine?

Share this post


Link to post
Share on other sites

Improved, but still crowded in the center.

 

Share this post


Link to post
Share on other sites
5 hours ago, CatastrophicFailure said:

Throw a little (cleaned) regolith in and it becomes real value. :o

people drink mezcal with a worm in it, after all...

I have some with a scorpion in it. I wouldn't be real keen to drink regolith from the moon though.

Share this post


Link to post
Share on other sites

Getting closer...

 

No Boca Chica NOTAMs today, but apparently hopper is venting, so they are likely testing the tanks.

Share this post


Link to post
Share on other sites

I'm very keen to see how the deploy 60 satellites. Are they going to show us?

Share this post


Link to post
Share on other sites
Just now, Brotoro said:

I'm very keen to see how the deploy 60 satellites. Are they going to show us?

"Like dealing a deck of cards"

Share this post


Link to post
Share on other sites

 

Share this post


Link to post
Share on other sites

Startup.

And off we go!

Let's see how the re-used fairings do at max-Q

 

Interest effects of the upper stage exhaust hitting the first stage.

And the fairing have done their job.

Share this post


Link to post
Share on other sites
Posted (edited)

Try reloading.

Entry burn onboard video...

Nice heating effects on the grid fins

Annnnndddd... first stage is on the boat.

Coasting. "Don't touch that dial." As if that guy is old enough to remember channel select dials.

Edited by Brotoro

Share this post


Link to post
Share on other sites

And a successful launch!! And now to bed for me.

Share this post


Link to post
Share on other sites
Just now, Spaceception said:

And a successful launch!! And now to bed for me.

Not quite, still have a coast phase and engine relight, followed by satellite deployment

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.