SpaceX's New Raptor 4 Upgraded Thrilling Scientists' Minds...

SpaceX's New Raptor 4 Upgraded Thrilling Scientists' Minds...
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00:00: Intro
00:36: Raptor 4
09:18: Roles of Raptor engine versions
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#greatspacex #elonmusk #spacex #nasa #raptor
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SpaceX's New Raptor 4 Upgraded Thrilling Scientists' Minds...
Unlimited—that’s the word that defines Starship’s potential. And at the heart of it all is the ever-evolving Raptor engine.
For over a year, we’ve been waiting for Raptor 3. But now, SpaceX has already teased something even bigger: a next-gen upgrade we can call Raptor 4—hinting at the next leap forward.
How powerful is it? What’s new? And when will we see it fly?
Let’s dive in—right here on Great SpaceX!
The development of the Raptor engine family is a direct reflection of the evolution and future ambition of Starship. Each new engine version not only boosts performance but also marks a significant leap in SpaceX’s long-term vision for interplanetary travel and beyond. For instance, the sleek, black Raptor 3 that was unveiled last year serves as the mechanical heart of Starship Version 3. This larger and more capable Starship variant, which will stand nearly 150 meters tall, is expected to debut in just a few months.
However, it appears that the number three is not the final milestone for either the Raptor engine or the Starship system. Looking further ahead, SpaceX is already pointing toward a more powerful engine—what we can now call Raptor 4.
SpaceX's New Raptor 4 Upgraded Thrilling Scientists' Minds...
Hints about this next-generation engine first emerged in an interview between Elon Musk and Everyday Astronaut. During the conversation, Musk referenced a version of the engine capable of producing 330 tons of thrust. For context, Raptor 3 has been described as delivering around 280 tons of thrust, with potential variants reaching up to 300 tons. A 330-ton version clearly represents something more advanced, indicating the introduction of a completely new engine generation.
Later in the year, Elon Musk mentioned Raptor 4 explicitly, confirming that it will surpass the 300-ton threshold. In his most recent presentation, Musk also referenced a future Starship capable of carrying up to 300 tons of payload per flight. This marks a massive increase from the current Starship’s capacity of around 200 tons, or slightly more with Version 3. To lift such heavy payloads, a significantly more powerful engine like Raptor 4 would be essential.
So why is the Raptor 4 so highly anticipated?
SpaceX's New Raptor 4 Upgraded Thrilling Scientists' Minds...
First and foremost, it is the thrust. With a planned output of 330 tons, Raptor 4 will be approximately 17 percent stronger than the Raptor 3’s 280 tons. Compared to Raptor 2, it is expected to deliver a staggering 43 percent more thrust. If SpaceX maintains the current Starship architecture, Super Heavy boosters equipped with Raptor 4 could generate up to 10,890 tons of lift-off thrust—more than triple the Saturn V’s thrust. Even more impressively, future configurations suggest that Super Heavy could carry 35 engines, and the Ship could hold 9 sea-level engines plus 3 vacuum variants. This setup could push total lift-off thrust past 11,500 tons, while the Ship itself would exceed 3,000 tons, nearly rivaling Saturn V’s total lift capability and outperforming every current and historical launch system.
In addition to sheer power, other performance metrics are also set to improve. In August, Musk stated that Raptor 3 and the Raptor 4 Vacuum variant, which will feature an oversized nozzle, could reach a specific impulse of 380 seconds. Meanwhile, Raptor 3 is projected to hit a chamber pressure of 350 bar, already the highest of any operational engine. Raptor 4 could push this benchmark even higher.
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