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SpaceX |OT| Reusable Rockets - To Mars!
- Thread starter Crispy75
- Start date
Blue Origin about to do another hop above the Karman Line:
It blew over in the wind >_<
Whoops. D: Apparently it can be repaired in a matter of weeks?It blew over in the wind >_<
It was built in a matter of weeks it seems like, lol. They were waiting on tested Raptors anyway, so at least they were able to verify dimensions and such, hopefully won't set them back too far.
This is pretty big news, on the anniversary of Falcon Heavy demo static fire too.
Any hype for Crew Dragon's first flight? SpaceX is getting closer and closer to finally launching astronauts to the ISS with the second flight of the capsule!
(LOUD AUDIO WARNING)
Any hype for Crew Dragon's first flight? SpaceX is getting closer and closer to finally launching astronauts to the ISS with the second flight of the capsule!
(LOUD AUDIO WARNING)
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Forgot I had my volume up and that firing had me jump in me seat. Humans privatised in space again, bring it on.
(we can all forget about those celebrity visits now)
Starship will essentially sweat water or methane for evaporative cooling during reentry as a "regenerative heat shield"- pretty cool (no pun intended).
https://www.popularmechanics.com/space/rockets/a25953663/elon-musk-spacex-bfr-stainless-steel/
There was speculation on a water jacket for cooling, but I'm not sure anyone speculated on this. I'm curious as to what effect heat does to the shape/size of the perforations. Is it somewhat self regulating?
The article also goes into more properties about the alloy they're using.
https://www.popularmechanics.com/space/rockets/a25953663/elon-musk-spacex-bfr-stainless-steel/
There was speculation on a water jacket for cooling, but I'm not sure anyone speculated on this. I'm curious as to what effect heat does to the shape/size of the perforations. Is it somewhat self regulating?
The article also goes into more properties about the alloy they're using.
As a point of comparison, Raptor is projected to have roughly double the thrust of the current Merlin, as well as a slightly higher Isp.
I'm pretty sure Superman has already done this. Have we learned nothing from comics?!
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As someone very nicely put it on the nasaspaceflight forum, the Raptor engine is something the size of a cargo van that produces as much power as the entire country of Switzerland, all forced through an opening the size of a toilet seat.
To be fair, you can make similar comparisons with other engines; Raptor is very good, but it's still inside the general ball park. Still, it puts into perspective just how hard rocket engineering is.
To be fair, you can make similar comparisons with other engines; Raptor is very good, but it's still inside the general ball park. Still, it puts into perspective just how hard rocket engineering is.
From what I understand, it's the only one to not have been canceled. So far. ;)
Just going a little OT here, but there's an Ariane 5 launch tonight.
The interesting thing here is that ESA are really making this coverage an "event". I'd like to think the likes of SpaceX are driving this kind of coverage. It makes space launches so much more engaging with this kind of presentation to the viewer.
The interesting thing here is that ESA are really making this coverage an "event". I'd like to think the likes of SpaceX are driving this kind of coverage. It makes space launches so much more engaging with this kind of presentation to the viewer.
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I watched the recent Delta 4 Heavy launch with my 5yo daughter. We've enjoyed lots of SpaceX launches, but I think this was the first she'd seen from another launcher. She liked the bit when the booster cores dropped off. Then this:
"Daddy, when is it going to land?"
"It doesn't."
"Not any of it?"
"No. All three of those rockets just fall in the sea."
"Oh no! Really?"
"Really."
"That's very silly."
"Daddy, when is it going to land?"
"It doesn't."
"Not any of it?"
"No. All three of those rockets just fall in the sea."
"Oh no! Really?"
"Really."
"That's very silly."
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I think it'll fly at least once, in 2020. The VAB has been modified to handle it. The launch pad and tower are complete (inside the VAB) ready to be crawlered out. The 1st first stage is into final assembly, with the 2nd on its way. There's nothing impossible about SLS, it's just dumb.
I'm sure SpaceX will bust a gut to have a "structural test" version of Starship/Super Heavy on pad 39A, gleaming away in the background when it finally launches. And then the SLS schedule has a 2 year gap before the first crewed flight. That should be enough time for SS/SH to start flying. If #dearmoon flies before 2022, it's all over for the pork barrel rocket.
Didn't they compute a rough Mars transition orbit? If they got it right it'll just orbit the sun forever in an ellipse taking it close to Earth's orbit and then close to Mars' orbit. They deliberately overshot the aphelion so the Tesla can never be captured by Mars gravity.
Everyday Astronaut will be doing an anniversary livestream. https://www.youtube.com/watch?v=nTJZ44fsncM
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Hah, even as I spoke, SLS flight 1 got pushed back to 2021
Meanwhile, less than a week after the first test fire, Raptor is up to flight spec thrust
Followup: "Design requires at least 170 metric tons of force. Engine reached 172 mT & 257 bar chamber pressure with warm propellant, which means 10% to 20% more with deep cryo."
longer duration burns next, I guess.
Meanwhile, less than a week after the first test fire, Raptor is up to flight spec thrust
Followup: "Design requires at least 170 metric tons of force. Engine reached 172 mT & 257 bar chamber pressure with warm propellant, which means 10% to 20% more with deep cryo."
longer duration burns next, I guess.
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I'm still in awe with the consistency and predictability of these stream outcomes. Brilliant.