Discover and read the best of Twitter Threads about #spacexstarstack
Most recents (2)
Starstack 2 Orion Special *revA*: "Princess' Special Needs"
It's about solar panels, and how Orion was designed for a
- pre-SpaceX
- RL-10-centric
- low-thrust
...solar system.
Real complexity -> real pain -> real brains. 🧵 Let's go...
1/11 #SpaceXStarstack (@elonmusk)
It's about solar panels, and how Orion was designed for a
- pre-SpaceX
- RL-10-centric
- low-thrust
...solar system.
Real complexity -> real pain -> real brains. 🧵 Let's go...
1/11 #SpaceXStarstack (@elonmusk)
First, meet "Universal Stage Adapter", the piece of the EUS Exploration Upper Stage that Orion rides on, and then separates from.
@KenKirtland17 sensibly advised that it only makes sense to use it here too.
4.4 tonnes(!), but it turns out we need the weight anyway 🤓...
2/11
@KenKirtland17 sensibly advised that it only makes sense to use it here too.
4.4 tonnes(!), but it turns out we need the weight anyway 🤓...
2/11
Next, meet Orion's solar panels. They unfold and deploy as soon as Orion reaches LEO. They need the solar power ASAP so they can relax a little as they get ready for their TLI burn toward the Moon (or abort back to Florida).
OK fine, but there's a "problem"...
3/11
OK fine, but there's a "problem"...
3/11
Starstack 2 Orion Special: "Princess Flies Coach"
Starstack isn't a "design". It's a menu. Like Mexican food. Same few ingredients, many dishes.
Here we open the fridge and pull out the perfect concoction to send Orion safely off to TLI.
1/5 🧵 #SpaceXStarstack (@elonmusk)
Starstack isn't a "design". It's a menu. Like Mexican food. Same few ingredients, many dishes.
Here we open the fridge and pull out the perfect concoction to send Orion safely off to TLI.
1/5 🧵 #SpaceXStarstack (@elonmusk)
We start with the same "heavy" 2nd stage with 1200 tons of fuel in it, on the same RTLS'ing SuperHeavy, but since there's people in there, we're not "cheap-maxxing" but "margin-maxxing" instead:
- spare efficiency
- spare payload
- spare fuel
- spare engines
...and no LH2.
2/5
- spare efficiency
- spare payload
- spare fuel
- spare engines
...and no LH2.
2/5
Artemis has already declared "SLS bankruptcy" and left everything BUT Orion duty to Falcon's and Vulcan's. TLI'ing the Orion capsule was the one "real job" the SLS had left.
But if-and-once SuperHeavy truly works, using this to undercut SLS for that too is just obvious.
3/5
But if-and-once SuperHeavy truly works, using this to undercut SLS for that too is just obvious.
3/5
