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SpaceX’s Raptor 3 engine is sublime engineering • No basic heat shield needed → saves mass and dramatically boosts reliability • Small fuel leaks aren’t dangerous — they simply burn off safely in the open plasma • Major improvements in payload capacity, efficiency, and overall reliability • Radically simplified...

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Elon Musk on SpaceX's Raptor 3 — No basic heat shield needed, which saves mass and boosts reliability — Small fuel leaks aren’t dangerous — they burn off safely in open plasma — Huge improvements in payload, efficiency, and reliability — Simplified design with integrated electronics and fluid systems — So advanced, even experts thought it was not complete
1:59

Elon Musk on SpaceX's Raptor 3 — No basic heat shield needed, which saves mass and boosts reliability — Small fuel leaks aren’t dangerous — they burn off safely in open plasma — Huge improvements in payload, efficiency, and reliability — Simplified design with integrated electronics and fluid systems — So advanced, even experts thought it was not complete

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Elon Musk: Raptor 3 is kind of alien technology “Even industry experts, when we showed a picture of the Raptor 3, said, ‘That engine is not complete’” “Well, here’s the engine - not complete - firing at a level of efficiency that has never been achieved before” Raptor 3 is a massive leap forward in rocket engine design • No base heat shield required, saving huge mass and improving reliability • Fuel leaks are no longer catastrophic, they safely burn off in open plasma • Dramatically higher payload capacity and efficiency • Simpler design with fewer parts, but far more capability • Secondary fluid systems and electronics are integrated directly into the engine structure
1:42

Elon Musk: Raptor 3 is kind of alien technology “Even industry experts, when we showed a picture of the Raptor 3, said, ‘That engine is not complete’” “Well, here’s the engine - not complete - firing at a level of efficiency that has never been achieved before” Raptor 3 is a massive leap forward in rocket engine design • No base heat shield required, saving huge mass and improving reliability • Fuel leaks are no longer catastrophic, they safely burn off in open plasma • Dramatically higher payload capacity and efficiency • Simpler design with fewer parts, but far more capability • Secondary fluid systems and electronics are integrated directly into the engine structure

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Elon Musk on Raptor 3 Engine: "Raptor 3 is designed to require no basic heat shield, saving a lot of mass on the bottom and actually improving reliability, so that if there is, for example, a small fuel leak from the Raptor engine, it will simply leak into the existing flaming plasma and not really matter, whereas a fuel leak when the engines are contained in a box is a very scary thing indeed. It will be a massive increase in payload capability, in engine efficiency and in reliability. So this is really a revolutionary engine. Raptor 3 is really, I'd say, kind of alien technology, rocket engine. So in order to make the engine like that, we had to simplify so many parts of the design, incorporate secondary fluid circuits and electronics in the structure of the engine itself, so everything is contained and protected. It is a marvel of engineering."
1:44

Elon Musk on Raptor 3 Engine: "Raptor 3 is designed to require no basic heat shield, saving a lot of mass on the bottom and actually improving reliability, so that if there is, for example, a small fuel leak from the Raptor engine, it will simply leak into the existing flaming plasma and not really matter, whereas a fuel leak when the engines are contained in a box is a very scary thing indeed. It will be a massive increase in payload capability, in engine efficiency and in reliability. So this is really a revolutionary engine. Raptor 3 is really, I'd say, kind of alien technology, rocket engine. So in order to make the engine like that, we had to simplify so many parts of the design, incorporate secondary fluid circuits and electronics in the structure of the engine itself, so everything is contained and protected. It is a marvel of engineering."

DogeDesigner

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Elon: Raptor 3 skips the base heat shield entirely “Raptor 3 is designed to require no base heat shield, saving a lot of mass on the bottom and actually improving reliability. So that if, for example, there is a small fuel leak from the Raptor engine, it will simply leak into the existing flaming plasma and not really matter.”
1:42

Elon: Raptor 3 skips the base heat shield entirely “Raptor 3 is designed to require no base heat shield, saving a lot of mass on the bottom and actually improving reliability. So that if, for example, there is a small fuel leak from the Raptor engine, it will simply leak into the existing flaming plasma and not really matter.”

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Elon Musk: Raptor 3 is alien technology. “Raptor 3 is a massive increase in payload capability, in engine efficiency, and in reliability. This is really a revolutionary engine. Raptor 3 is really kind of an alien technology rocket engine. Even industry experts, when we showed a picture of the Raptor 3, said, that engine is not complete. Then we said, here's the engine, not complete, firing at a level of efficiency that has never been achieved before. That is one clean engine. In order to make the engine like that, we had to simplify so many parts of the design, incorporate secondary fluid circuits and electronics in the structure of the engine itself so everything is contained and protected. It is a marvel of engineering, frankly.” From: SpaceX Update, May 27, 2025
0:48

Elon Musk: Raptor 3 is alien technology. “Raptor 3 is a massive increase in payload capability, in engine efficiency, and in reliability. This is really a revolutionary engine. Raptor 3 is really kind of an alien technology rocket engine. Even industry experts, when we showed a picture of the Raptor 3, said, that engine is not complete. Then we said, here's the engine, not complete, firing at a level of efficiency that has never been achieved before. That is one clean engine. In order to make the engine like that, we had to simplify so many parts of the design, incorporate secondary fluid circuits and electronics in the structure of the engine itself so everything is contained and protected. It is a marvel of engineering, frankly.” From: SpaceX Update, May 27, 2025

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Raptor 3: The Most Advanced Rocket Engine Ever Raptor 3 is SpaceX’s latest evolution — the best rocket engine ever made. Key upgrades: • No external heat shield (full regenerative cooling) • Record thrust-to-weight ratio • Simplified design with fewer parts for faster production & higher reliability Elon Musk: “Raptor 3 engine is a very advanced engine, by far the best rocket engine ever made.” It powers Starship V3/V4 toward 10,000+ tons thrust and rapid reusability — the key to Mars.
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Raptor 3: The Most Advanced Rocket Engine Ever Raptor 3 is SpaceX’s latest evolution — the best rocket engine ever made. Key upgrades: • No external heat shield (full regenerative cooling) • Record thrust-to-weight ratio • Simplified design with fewer parts for faster production & higher reliability Elon Musk: “Raptor 3 engine is a very advanced engine, by far the best rocket engine ever made.” It powers Starship V3/V4 toward 10,000+ tons thrust and rapid reusability — the key to Mars.

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SpaceX’s new Raptor 3 is the most advanced rocket engine ever built Key upgrades over earlier Raptors: • Nearly double the thrust compared to Raptor 1 • About 4× cheaper to manufacture, dramatically lowering launch costs • A simplified design that saves over 40 metric tons of mass per Starship launch • Durable enough to eliminate the need for an external heat shield, reducing complexity and maintenance Raptor 3 is designed to fly on Starship Version 3, with first flight targeted for early 2026
0:24

SpaceX’s new Raptor 3 is the most advanced rocket engine ever built Key upgrades over earlier Raptors: • Nearly double the thrust compared to Raptor 1 • About 4× cheaper to manufacture, dramatically lowering launch costs • A simplified design that saves over 40 metric tons of mass per Starship launch • Durable enough to eliminate the need for an external heat shield, reducing complexity and maintenance Raptor 3 is designed to fly on Starship Version 3, with first flight targeted for early 2026

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🇺🇸 SpaceX just flew an engine so advanced, only 2 other organizations in history ever built one. The Soviet Union tried, the US barely demoed it, but SpaceX actually flew it. Raptor 3 hits 350 bar chamber pressure, a world record, and shaved 10+ tons by eliminating heat shields, fire suppression systems, and basically anything that wasn't absolutely necessary. Pure confidence in engineering. "Raptor 3 is engineering art." Definitely. Source: AstroMind Hub YT, Elon Musk, SpaceX
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🇺🇸 SpaceX just flew an engine so advanced, only 2 other organizations in history ever built one. The Soviet Union tried, the US barely demoed it, but SpaceX actually flew it. Raptor 3 hits 350 bar chamber pressure, a world record, and shaved 10+ tons by eliminating heat shields, fire suppression systems, and basically anything that wasn't absolutely necessary. Pure confidence in engineering. "Raptor 3 is engineering art." Definitely. Source: AstroMind Hub YT, Elon Musk, SpaceX

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Elon Musk on reusable heat shields and Mars reentry: — No one has created a truly reusable orbital heat shield before — Reentry involves extreme heat and pressure — very hard to withstand — Only advanced ceramics and carbon-based materials can survive it — SpaceX aims to make the first fully reusable, reliable orbital heat shield... difficult but physically achievable — CO₂ plasma releases free oxygen, which can burn the heat shield — Testing is done in CO₂ to ensure it works for both Earth and Mars
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Hyundai Rotem has released a video introducing the LRAAM missile. It is currently being jointly developed with LIG Nex1. The integrated ducted ramjet propulsion is shown briefly. ●The difference from the initially revealed LRAAM is the addition of strakes. ●Since South Korea's numerous air-launched strike missile programs are considered first and the existence of the MBDA Meteor, the development period is generous and is scheduled to end in 2032. ●The consortium is competing with Hanwha Aerospace. ●The SRAAM short-range air-to-air missile is being developed by LIG Nex1. ●The solid fuel gas generator generates fuel-rich gas through primary combustion. Air entering through the air intake is mixed with the fuel-rich gas and then combusted a second time in the combustor to generate thrust. ●Ducted ramjet or ducted rocket propulsion systems simplify the fuel supply system and are lighter than liquid-fuel ramjet propulsion systems. Liquid-fueled ramjets offer better fuel efficiency and fuel supply control. However, they require additional fuel handling and are more expensive and heavier. ●As part of the recent success of its ground-launched hypersonic cruise vehicle, Hyundai Rotem also released CG of an air-launched hypersonic anti-ship cruise missile. The disclosed information mentions the use of hypersonic cruise missiles on land, sea, and air, and Hyundai Rotem is considered to be leading the way in cutting-edge engine and materials technology. ADD and Hanwha Aerospace are also participating in this sensitive program.
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