SpaceX
SpaceX’s Starship engine breaks Russian rocketry record held for two decades
SpaceX CEO Elon Musk says the company’s Raptor engine, meant to power Starship and Super Heavy, has surpassed a rocketry record held by Russian scientists and engineers for more than two decades.
Known as combustion chamber pressure, Raptor has reportedly surpassed a modern Russian engine known as the RD-180, reaching forces equivalent to one Tesla Model 3 balanced on every square inch of Raptor’s combustion chamber, the hardware directly adjacent to a rocket engine’s bell-shaped nozzle.
Raptor reached 268.9 bar today, exceeding prior record held by the awesome Russian RD-180. Great work by @SpaceX engine/test team! pic.twitter.com/yPrvO0JhyY
— Elon Musk (@elonmusk) February 11, 2019
First and foremost, it’s far too early to actually crown Raptor as the new official record-holder for combustion chamber pressure. RD-180 has been reliably flying on ULA’s Atlas V rocket with chamber pressures as high ~257.5 bar (3735 psi) since the year 2000, while Raptor has been performing subscale integrated testing for roughly two years and full-scale integrated testing for less than seven days. As such, the fact that full-scale Raptor has achieved ~269 bar (3900 psi) is an almost unbelievably impressive achievement but probably shouldn’t be used to jump to any conclusions just yet.
Thanks to the 10-20% performance boost supercool liquid methane and oxygen will bring Raptor, currently stuck using propellant just barely cold enough to remain liquid, the engine performing tests could already be made to reach its design specification of 300+ bar (4350+ psi), although Musk cautioned that he wasn’t sure Raptor would be able to survive that power in its current iteration. Nevertheless, 250 bar is apparently more than enough to operate Starship and its Super Heavy booster during most regimes of flight, although maximum thrust (and thus max chamber pressures) is probably desirable for the first minute or so after launch when gravity losses are most significant.
- CEO Elon Musk revealed the first official photos of SpaceX’s finalized Raptor engine, set to support Starship hop tests and early BFR launches. (SpaceX)
- The first finalized Raptor engine (SN01) completed a successful static fire debut on the evening of February 3rd. (SpaceX)
- SpaceX has now tested Raptor successfully at more than twice the thrust of Merlin 1D, the engine that powers Falcon 9. (SpaceX)
- Eventually, three Raptors will be installed on the first full-scale Starship prototype, currently being assembled in South Texas. (NASASpaceflight – bocachicagal.
Ultimately, the sheer speed of SpaceX’s full-scale Raptor test program is easily the most impressive and encouraging aspect of the brand new engine design. While SpaceX does tend towards testing to destruction over putting on kid-gloves around flight or development hardware, it’s safe to say that even SpaceX would avoid frivolously destroying the first full-scale Raptor after just a few dozen seconds of integrated hot-fire testing, indicating that no major red flags have cropped up since the company’s propulsion team began testing on February 3rd. In fact, Musk estimated that six separate static-fires have been performed with Raptor in the seven days since its first ignition.
I think 6 where we lit main chamber & several with only preburners
— Elon Musk (@elonmusk) February 11, 2019
As of 2017, Raptor’s McGregor, Texas test cell was fundamentally capped at test durations under 100 seconds, making comparisons difficult. Still, the best possible recent point of comparison to Raptor’s test program can be found in NASA’s series of tests of Space Shuttle engines in preparation for the Space Launch System (SLS) rocket, an expendable launch vehicle being built by Boeing, Aerojet-Rocketdyne, NGIS (formerly Orbital-ATK), and others with NASA funds. Known as RS-25 under the SLS Program, the Space Shuttle engines being test-fired by NASA have already performed multiple full-duration missions to orbit and back on the four Space Shuttle orbiters built. After half a decade in storage, they are being re-tested (effectively acceptance testing) to ensure that they are ready to be expended on SLS launches.
In the first round of 2015 tests, NASA’s Stennis Space Center test stage supported six RS-25 static-fires total, ranging from two weeks to almost five months between tests. RS-25 testing has remained on a similar schedule in 2016-2018, averaging 4-6 tests annually with no fewer than two weeks between static-fires. Given that the vast majority of those ex-Space Shuttle Main Engine tests tend to last hundreds of seconds, it’s not a perfect comparison, but it offers at least a general idea of just how incredible it is to see a groundbreaking engine like Raptor test-fired almost daily just days after it was installed on a test stand for the first time.
— Elon Musk (@elonmusk) February 4, 2019
Check out Teslarati’s newsletters for prompt updates, on-the-ground perspectives, and unique glimpses of SpaceX’s rocket launch and recovery processes!
Elon Musk
SpaceX posts Starship booster feat that’s so nutty, it doesn’t even look real
The Super Heavy booster’s feat was so impressive that the whole maneuver almost looked like it was AI-generated.
SpaceX has shared a video of a remarkable feat achieved by Starship’s Super Heavy booster during its 11th flight test.
The Super Heavy booster’s feat was so impressive that the whole maneuver, which was captured on video, almost looked like it was AI-generated.
Super Heavy’s picture perfect hover
As could be seen in the video shared by SpaceX, Starship’s Super Heavy booster, which is nearly 400 feet tall, smoothly returned to Earth and hovered above the Gulf of America for a few seconds before it went for its soft water landing. The booster’s picture-perfect maneuver before splashing down all but capped a near-flawless mission for Starship, which is about to enter its V3 era with Flight 12.
The booster’s balance and stability were so perfect that some users on X joked that the whole thing looked AI-generated. Considering the size of Super Heavy, as well as the fact that the booster was returning from space, the hovering display all but showed that SpaceX is dead serious about keeping its dominant lead in the spaceflight sector.
Starship V2’s curtain call
As noted in a Space.com report, Flight Test 11 achieved every major goal SpaceX had set for the mission, including deploying Starlink mass simulators, relighting Raptor engines in space, and executing a stable reentry for both the Starship Upper Stage and the Super Heavy booster. The feat also marked the second time a Super Heavy booster has been reflown, a milestone in SpaceX’s quest to make the entire Starship system fully reusable.
Starship’s V2 vehicle will now give way to the upgraded Starship V3, which is designed for faster turnaround and higher payload capacity. The Starship program is expected to pursue even more aggressive targets in the coming months as well, with Elon Musk stating on social media platform X that SpaceX will attempt a tower catch for Starship Upper Stage as early as spring 2026.
Elon Musk
Starship’s next chapter: SpaceX eyes tower catch after flawless Flight 11
Elon Musk has revealed the tentative timeframe for Starship’s next milestone that would push the spacecraft’s reusability to a whole new level.
Elon Musk has revealed the tentative timeframe for Starship’s next milestone that would push the spacecraft’s reusability to a whole new level.
Following Flight 11’s flawless mission, Musk noted on X that SpaceX will be aiming to catch the Starship Upper Stage with its launch tower as early as spring 2026. This should pave the way for SpaceX to start optimizing Starship for maximum reusability.
Flight 11 closes the Starship V2 chapter on a high note
Starship’s eleventh flight, which launched from Starbase, Texas, achieved every major mission objective. The Super Heavy booster completed a successful ascent, hover, and soft splashdown in the Gulf of America, while the upper stage executed an orbit burn, deployed Starlink simulators, and returned with a controlled reentry over the Indian Ocean.
This mission officially closed the chapter on the second-generation Starship and first-generation Super Heavy booster, and it set the stage for a redesigned vehicle built for orbital payload missions, propellant transfer, and beyond. It should be noted that Elon Musk has mentioned on X that Starship V3, at least if things go well, might be capable of reaching Mars.
Elon Musk confirms tower catch attempt set for spring
After Flight 11’s success, Musk confirmed that SpaceX will attempt to catch the Starship Upper Stage with its launch tower arms, fondly dubbed by the spaceflight community as “chopsticks,” in the coming months. Musk’s announcement came as a response to an X user who asked when the tower could start catching the Starship Upper Stage. In his reply, Musk simply wrote “Springtime.”
Starship’s reusability is a key feature of the spacecraft, with SpaceX aiming to achieve a launch cadence that is almost comparable to conventional aircraft. For such a scenario to be feasible, launch tower catches of both Starship’s Upper Stage and its Super Heavy booster have to be routine.
Elon Musk
SpaceX is preparing to launch Starship V2 one final time
The mission will test reentry dynamics, new landing burn configurations, and heat-shield upgrades.
SpaceX is preparing to launch its final Starship V2 rocket on October 13, 2025. The launch closes the curtain on Starship V2 and marks the start of the ambitious spacecraft’s V3 era.
Liftoff for Flight 11 is scheduled for 7:15 p.m. ET from Starbase in South Texas, with a 75-minute launch window. The mission will test reentry dynamics, new landing burn configurations, and heat-shield upgrades ahead of the transition to the next-generation Starship V3.
Starship V3 and beyond
Elon Musk confirmed on X that Starship V3 is already in production and could be “built & tested” and perhaps even flown before the end of 2025. The new version is expected to feature major performance and scale improvements, with Musk stating that Starship V3, provided that things go well, might be capable of reaching Mars, though V4 is more likely to perform a full-scale mission to the red planet.
“Only one more V2 left to launch,” Musk wrote back in August following Starship’s successful Flight 10 mission. In another post, Musk stated that “Starship V3 is a massive upgrade from the current V2 and should be through production and testing by end of year, with heavy flight activity next year.”
Starship V2’s final mission
Flight 11 is designed to push the limits of Starship V2. SpaceX engineers have intentionally removed heat-shield tiles in vulnerable areas to analyze how the vehicle handles atmospheric reentry under stress, as noted in a Space.com report. The test will also refine subsonic guidance algorithms and new landing burn sequences for the Super Heavy booster that would be used for Starship V3.
“Super Heavy will ignite 13 engines at the start of the landing burn and then transition to a new configuration with five engines running for the divert phase. Previously done with three engines, the planned baseline for V3 Super Heavy will use five engines during the section of the burn responsible for fine-tuning the booster’s path, adding additional redundancy for spontaneous engine shutdowns.
“The booster will then transition to its three center engines for the end of the landing burn, entering a full hover while still above the ocean surface, followed by shutdown and dropping into the Gulf of America,” SpaceX wrote in a post on its official website.
-
Elon Musk1 week agoSpaceX posts Starship booster feat that’s so nutty, it doesn’t even look real
-
Elon Musk7 days agoTesla Full Self-Driving gets an offer to be insured for ‘almost free’
-
News6 days agoElon Musk confirms Tesla FSD V14.2 will see widespread rollout
-
News1 week agoTesla is adding an interesting feature to its centerscreen in a coming update
-
News1 week agoTesla launches new interior option for Model Y
-
News1 week agoTesla widens rollout of new Full Self-Driving suite to more owners
-
Elon Musk1 week agoTesla CEO Elon Musk’s $1 trillion pay package hits first adversity from proxy firm
-
News5 days agoTesla might be doing away with a long-included feature with its vehicles





