Musk: Starship ‘ready to launch’
Reponding to a video posted on X by SpaceX, showing a “fully stacked” Starship on the launchpad at Boca Chica Starbase, Musk says Starship is ready for its second attempt at an orbital flight test, pending regulatory approval.
Starship is ready to launch, awaiting FAA license approval
Starship is ready to launch, awaiting FAA license approval https://t.co/WjENkdudo9
— Elon Musk (@elonmusk) September 6, 2023
The FAA says the launch licence application for Starship depends on various requirements being met, including reviews on policy, payload, safety, airspace integration, financial responsibility and environmental impacts.
The FAA will make a licence determination only after the agency is satisfied SpaceX meets all licensing, safety and other regulatory requirements.
Starship Super Heavy booster moved to launch pad
SpaceX says the Starship Super Heavy booster is being moved to the launch pad and will be undergoing testing leading up to its next test flight.
Starship Super Heavy Booster 9 transported to the orbital launch pad at Starbase for testing ahead of flight
Starship Super Heavy Booster 9 transported to the orbital launch pad at Starbase for testing ahead of flight pic.twitter.com/fF6U13thzs
— SpaceX (@SpaceX) July 20, 2023
Musk: SpaceX ‘six weeks’ away from second Starship launch
In a Twitter Spaces discussion with Vance, Musk says SpaceX is six weeks away from launching their second attempt to reach orbit with their Starship rocket. Despite implementing “well over a thousand” changes since the first attempt the launch will not go ahead unless the Federal Aviation Administration gives it clearance and signs off on the Starship’s self-destruct system which was slow to respond on the first attempt. During the Super Heavy’s maiden flight, a half-dozen engines shut down or never started and the Starship never separated from the Super Heavy first stage. The next test will use ‘hot staging’, which means that the Starship engines will ignite before separation.
We shut down most of the engines on the booster, leaving just a few running and then at the same time, start the engines on the ship, or upper stage
Musk says roughly 1,000 cubic meters of steel-reinforced high-strength concrete will be added to the launchpad to avoid damaging breakup.
On top of that, we have a sort of a steel sandwich, which is basically two thick plates of steel that are welded together with channels going through (with) perforations in the top so it will actually shoot a lot of water out. Think of it like a gigantic upside-down shower head. It’s going to basically blast water upwards while the rocket is over the pad to counteract the massive amount of heat from the booster. The booster is basically like the world’s biggest cutting torch with a massive amount of … heat, but also a massive amount of force.
Musk says the chance of the test getting to orbit is 60%:
I think the probability of this next flight working, getting to orbit, is much higher than the last one. Maybe it’s like 60%. It depends on how well we do at stage separation…In launching, what you’re doing is trying to resolve the unknowns which you cannot know before you launch, or at least we are not smart enough to know. So like I said, what appears to be the biggest risk right now is stage separation.
Musk: Starship will lift 300 tons expendable, 180 tons reusable
Responding to a Twitter user, Musk says SpaceX Starship with improved Raptor 3 engines should lift 300 tons in expendable mode, or 180 tons in reusable mode. This compares with two years ago, when Two years ago Musk estimated a Starship would lift 250 tons to orbit in expandable mode and 150 tons in reusable mode. For comparison, the International Space Station weighs 450 tons and took around 50 Space Shuttle launches to complete. An earlier, SpaceX concept, called the Interplanetary Transport System, was planned to carry 550 tons expendable, 300 tons reusable.
Starship payload is 250 to 300 tons to orbit in expendable mode. Improved thrust & Isp from Raptor will enable ~6000 ton liftoff mass.
Starship payload is 250 to 300 tons to orbit in expendable mode.
Improved thrust & Isp from Raptor will enable ~6000 ton liftoff mass.
— Elon Musk (@elonmusk) May 24, 2023
Musk: First Starship launch ‘roughly what I expected’
In an audio chat with SpaceX fans, Musk says Starship’s first test flight was successful, even though it exploded before reaching space, and says a new rocket can be ready for liftoff within six to eight weeks, along with repairs to the damaged launchpad.
The outcome was roughly in what I expected, and maybe slightly exceeding my expectations, but roughly what I expected, which is that we would get clear of the pad. [The launch was] obviously not a complete success, but still nonetheless successful.
Musk says he hadn’t expected a “rock tornado” to be generated under the booster at liftoff and said SpaceX “chose not to start” three of the 33 Raptor engines on the booster, because they were not “healthy enough to bring them to full thrust.” Musk also said the reason Starship slid off the launchpad while ascending was “because of the engine failures.” SpaceX “lost communications” with another Raptor about 27 seconds into the flight due to “some kind of energy event” that knocked the heat shields out of several other engines.
At about 85 seconds, “things really hit the fan” and SpaceX lost its ability to steer the rocket. Finally, Starship’s Automated Flight-Termination System was working too slowly, so it took about “40 seconds-ish” to self-destruct. Still, Musk downplayed the effects of the explosion as a whole, saying the (Boca Chica) “pad damage is actually quite small” and should “be repaired quickly.”
Despite the fact that debris from the explosion fell into the Gulf of Mexico and rained dust onto residents of Port Isabel (as well as their cars and homes), that the U.S. Fish and Wildlife Service called the explosion responsible for a 3.5-acre fire, the spread of debris over 365 acres of land, and throwing of “pulverized concrete” up to 6½ miles, Musk says:
To the best of our knowledge there has not been any meaningful damage to the environment that we’re aware of.
Musk believes, too, that the Starship program does not need $750 million in additional funding it had been set to raise, and will spend about $2 billion on the Starship program to attempt five launches. Musk says he expects success by the end of the year;
I will be surprised if we exit this year without getting to orbit.
Musk: Starship launch ‘may not be successful’
Musk says expectations should remain low for the Starship system, and that his team is mainly looking to gather data about how the vehicle ascends to space and returns back to Earth.
I guess I would just like to set expectations… low…Success is not what should be expected. It’s just a very fundamentally difficult thing. Probably, tomorrow will not be successful… If we get far enough away from the launchpad before something goes wrong, I would consider that to be a success. Just don’t blow up the launchpad.
Starship is due to launch at 8am CST (2pm BST).
Launch attempt tomorrow pic.twitter.com/czFsQ53Xsa
— Elon Musk (@elonmusk) April 16, 2023
Musk ‘not saying’ Starship will get to orbit
SpaceX will debut its Starship vehicle in a month or so, but the chances of its first-ever orbital mission being a success are apparently only about 50%.
I’m not saying it will get to orbit, but I am guaranteeing excitement. So, won’t be boring!…So I think we’ve got, hopefully, about an 80% chance of reaching orbit this year. It’ll probably take us a couple more years to achieve full and rapid reusability.
According to Musk, Starship will be the most powerful rocket to ever fly, featuring about 2.5 times more thrust at liftoff than NASA’s Saturn V. SpaceX hopes that, among other things, Starship will get people and cargo to the moon and Mars. It is designed to be fully and rapidly reusable, which Musk considers the most important breakthrough for making Mars colonization and other ambitious exploration feats feasible.
Musk post Starship night photo: ‘This is real’
Musk posts a night image of the newly-stacked Starship, on its launchpad at Boca Chica, Texas, with the caption:
This is real
This is real
— Elon Musk (@elonmusk) October 13, 2022