Elon Musk's SpaceX Announced NEW Raptor 3 Upgrade after Starship flight 10 Shocked whole Industry

This is insane. The Raptor 3 engine, already known as the world's most powerful and stable rocket engine, just got a huge update from SpaceX. They've fixed all the issues it faced during testing, making it stronger than ever. So, what are these upgrades, and when will we actually see them in action? Let's dive in and find out in today's alpha tech. Just a few days ago, observers spotted a rare scene inside the Star Factory. All three generations of the Raptor engine, versions one, two, and three, lined up neatly side by side. That arrangement is almost certainly intentional as Elon Musk has hinted at a major technical update on Starship with Raptor 3 likely to take center stage. The most striking detail in the photo is the Raptor SN20. At first glance, it might look no different from the earlier engines, but with the sharp eyes of engineers, it becomes clear that SN20 carries some significant upgrades compared to the SN1 prototype unveiled back in August last year. To really see what I mean, let's take a look at this photo. All right, so as you can see, I'm not exactly sure which SN version these upgrades started on, but on SN20, there are three noticeable changes. First, right at the Methylox feed line joint, they added a gray collar that basically acts like a protective buffer, shielding the joint from the insane vibrations of Raptor 3, which can push out up to 280 tons of thrust thanks to the full flow stage combustion cycle. Just to the left of that collar, you can also spot that SpaceX wrapped the methane turbo pump area in a metal casing, probably to tidy things up and give the engine a cleaner, more robust look. Oh, and I almost forgot. SN20 also comes with a Texas flag, which is pretty interesting. Imagine if Gavin Newsome had been a bit nicer to SpaceX. Maybe it would be flying around with a California flag instead. Then there's the third upgrade over at the hot gas manifold part. Elon Musk mentioned there was a technical issue with the Raptor 3 at the connection between the thrust chamber and the manifold. Originally, this joint used a bolted flange, which he described as ugly, unreliable, and heavy. The problem was that it added extra weight, could loosen under extreme heat and pressure, and made manufacturing more complex. SpaceX's solution was to switch to a welded joint, which cuts weight. Raptor 3 now comes in at just 1,525 kg, makes the connection stronger and leakproof, and even improves gas flow inside the engine. Of course, welding introduces its own challenges like being harder to maintain and requiring super precise techniques. especially when you're joining different metals like copper alloys for the chamber and incanel for the manifold. To deal with that, they added a protective plate over the weld, keeping it safe while the engine stays reliable. It seems these upgrades actually stem from a Raptor 3 explosion during testing at SpaceX's McGregor facility in Texas back in May. The blast was sudden, sending flames shooting up, but luckily it was quickly contained. The root cause hasn't been officially revealed, but it looks like they were intentionally pushing Raptor 3's thrust up toward 300 tons, which put massive stress on the engine structure. So, yeah, that McGregor incident might have been part of the plan. They were simulating conditions the engine might face in space, violent vibrations, turbulent flow to see how every tiny component inside and out holds up. According to a reliable source, SpaceX has been ramping up engine tests at McGregor since early August, running 24 engine burns in a single week, covering both Raptor 2 and Raptor 3. One major milestone included a 201 burn on the Raptor South test stand, the longest Raptor 3 burn recorded at that time. But it's also possible that the incident happened because they intentionally messed with the mixture ratio of liquid methane and liquid oxygen to see what would happen. Wait, just getting the mix wrong can actually make it explode. As Elon Musk said, very complex startup sequence. Insane timing precision is needed to avoid blowing up the engine. To understand why Elon Musk said that, let me break it down. Raptor 3 is an advanced rocket engine that runs on liquid methane and liquid oxygen using a full flow stage combustion cycle. That means the fuel and oxygen go through two separate pre-burners before reaching the main combustion chamber where they combine to produce massive thrust. The methane to oxygen ratio has to be insanely precise, like brewing a perfect cup of coffee with the exact water to coffee balance. Get it wrong and everything goes haywire. Think of Raptor 3 like a superpowered gas stove, but instead of a tiny flame, it's producing a fireball with pressures up to 350 bar. Inside, methane and oxygen are pumped into two pre-burners. One mostly methane with a little oxygen, and the other mostly oxygen with a bit of methane. The hot gases from these pre-burners then pass through the hot gas manifold before mixing in the main combustion chamber to burn completely, generating the thrust that launches the rocket. If the mix is off, too much oxygen or too little methane, the burn becomes unstable. Too much oxygen can overheat the metal, melting parts of the combustion chamber or other components. Too much methane can cause incomplete combustion, leaving residue or even triggering small explosions as excess fuel suddenly ignites. It gets even trickier because Raptor 3 operates at extreme pressures and speeds. So everything has to be perfectly synchronized down to fractions of a millisecond. If the ratio is off, the pressure in the chamber can oscillate violently, like waves slloshing back and forth in a pool. These combustion oscillations can shake the engine so hard that parts like the hot gas manifold or fuel pump turbines crack or fail. In the worst case scenario, a sudden pressure spike, like overinflating a balloon, can make the whole engine explode. This is called a hard start, a dangerous event when the fuel mixture ignites too quickly or at the wrong moment. But thanks to the May incident and the latest upgrades they have revealed, it looks like in the future, issues like this could be much easier to prevent and fix. So, the big question now is when are we actually going to see Raptor 3 fly? Well, to answer that, we'll probably have to wait for Elon Musk's technical update live stream. The original plan was for him to share it on Sunday, but now it's been delayed. No worries, though. This was totally predictable. As we all know, Raptor 3 is only equipped on Starship Block 3 and beyond. Flights 10 and 11 are still using Starship Block 2. So, if flight 11 happens sometime in September, we could see a version 3 Starship as early as October or early November this year. And there's good reason to think so. Just two weeks ago, cameras at Starbase caught ship 39's nose cone being mounted onto the payload base section. And ship 39 is set to be the first of the version 3 starships. From now until October, there's plenty of time to finish assembling the ship structure. But what about the engines? Do they even have enough Raptor 3s ready to install right now? Probably not yet because on August 13th, someone spotted Raptor 3SN29 at McGregor, which means they currently only have around 30 engines that have been tested and could be ready for use. A complete Starship needs 39 Raptor 3s, six for the upper stage, and 33 for the Superheavy booster. But by October, they should definitely have enough engines to assemble a full Block 3 vehicle. and November could be the perfect time to see them roaring across the sky for the first time. Still, SpaceX can't get too comfortable. A German company just announced that they've completed a six-week test campaign on their full flow stage combustion rocket engine, the same technology SpaceX uses with Raptor, named Typhoon. The engine's oxygen-rich pre-burner was tested at the Lampolds housing site of the German Aerospace Center DLR. The propulsion system underwent 16 hot fire tests. This reusable engine has been in development since 2024 with co-unding from the French space agency CNES. Designed to produce 250 tons of thrust, it uses the full flow stage combustion cycle. The company revealed that these 16 hot fire tests were conducted across four different configurations covering a wide operating range. Early low-frequency instabilities were resolved, allowing for stable firing sequences of up to 85 seconds by the end of the campaign. The pre-burner powers the engine's turbines, pumping fuel and oxidizer into the combustion chamber at high pressure. Once the engine overcame the initial instabilities, it achieved stable burns for up to 85 seconds, a significant improvement over earlier tests conducted earlier this year. Exploration Company has reached another important milestone. We're excited to contribute our expertise to the development of future space propulsion systems and appreciate the trust and effective cooperation, the DLR Institute of Space Propulsion said in a social media post. According to the company, this reusable engine uses a full flow stage combustion cycle and is designed to produce 250 tons of thrust, even 20 tons more than Raptor 2. Right now, the Typhoon engine hasn't been confirmed for use on any rocket because the company believes it's too powerful for any current space logistics project. Exploration company has teamed up with a major industrial partner to submit a proposal for the European Space Ay's European Launch Challenge. While it's not official yet, according to European Spaceflight, the company's contribution could include the Typhoon engine. And once it's in action, possibly as soon as 2026, it could directly challenge SpaceX's engine production. That's why the ultimate counter is Raptor 3. There's no other engine out there that can beat Typhoon. So, let's cheer on SpaceX by dropping a one in the comments. Now, let's move on to another bit of SpaceX news. They just completed their 33rd cargo delivery to the International Space Station early Monday morning as a Dragon supply ship smoothly docked with over 5,000 lbs of science experiments and essential supplies for the sevenperson crew aboard the lab. This resupply flight is part of the regular rotation of cargo and crew missions that keep the station running. But this time there's a little twist. Instead of just the usual prepackaged space food, the Dragon carried fresh food, including around 1,500 tortillas along with equipment for several experiments. These include testing 3D printing and microgravity and studying how the human body responds to longduration space flight. Although this was SpaceX's 33rd cargo delivery mission to the ISS under NASA's multi-billion dollar commercial resupply services contract, it also marked a much bigger milestone, the 50th Dragon mission to the station overall. And that number includes 17 crew Dragon flights carrying astronauts. What's even more interesting about this flight is that it ties into some important work on the ISS. Normally, SpaceX's Dragon cargo ships dock at the forward end of the station's main axis, which theoretically makes it easier to adjust the station's orbit. But, of course, SpaceX has to make sure Dragon has enough fuel to reach the ISS and return safely to Earth. Its 16 Draco thrusters aren't fully maneuverable. Yet, last year, SpaceX proved they could perform small orbital adjustments for the station. The station's altitude gradually decreases over time due to drag from the thin atmosphere at our orbit, said Bill Speetch, NASA's director of ISS operations integration. To counteract that drag, we occasionally need to boost the station's altitude. In the past, the Russian space agency handled most of the station's orbital maintenance. After NASA retired the space shuttle in 2011, Progress cargo ships were the only vehicles capable of reboosting the ISS. They could also refuel the Russian segment, letting the station perform maneuvers independently when needed.