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Jeff Bezos' rocket company Blue Origin has unveiled its next-generation rocket engine called Northstar. • Thrust: 715,000 lbf • Mass: 30% lighter than BE-4 • Parts count: 50% fewer parts than BE-4 • Thrust increase: 11.7% over BE-4 (640,000 → 715,000 lbf) • Assembly time: Less than 1 day...

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Sawyer Merritt

1,153,675 subscribers

208,294 次观看 • 1 天前 •via X (Twitter)

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32 条评论

Sawyer Merritt 的头像
Sawyer Merritt1 天前

More info:

Mike P 的头像
Mike P1 天前

Wait I thought capitalism was over

Trevor Scott ✘ 的头像
Trevor Scott ✘1 天前

Hey @grok compare every point that Sawyer made to that of SpaceX’s Raptor engine.

Modern Engineer 的头像
Modern Engineer1 天前

That's impressive thrust. Greater than Raptor 3. Well done @blueorigin.

Panke 的头像
Panke1 天前

Basically this new engine is like 2010 spaceX tech

LilHumansBigImpact 的头像
LilHumansBigImpact1 天前

I love the name Northstar

David Rejl 的头像
David Rejl1 天前

So it’s a literal copy of the Raptor 3

大伟｜AI × Web3 的头像
大伟｜AI × Web31 天前

比推力更关键的是“零件少50%、组装不到1天”。火箭商业化拼的不是单次参数，而是量产、复用和故障率。现在还差连续飞行数据证明，这不是实验室里的漂亮数字。

Alex Langos 的头像
Alex Langos1 天前

@grok how does this compare to spaceX?

Nuno Losch 的头像
Nuno Losch1 天前

@grok how does it compare to Raptor 3?

Not Serious 的头像
Not Serious1 天前

@grok how does the Northstar engine compare to raptor 3 on performance and cost?

Ed Moreno 的头像
Ed Moreno1 天前

Lol....decades behind

Jared 的头像
Jared1 天前

Competition fuels innovation.

Little Pine Farmer 的头像
Little Pine Farmer1 天前

Excellent! Go Team Space!

Russ 的头像
Russ1 天前

wow, that is next level

Kyle Cordes 的头像
Kyle Cordes1 天前

Good spec improvements! I wonder if the next one (5-10 years?) moves to FFSC. People knowledgeable about such things seem to mostly think that is where the physics points, but the engineering and plumbing are crazy hard.

Samuel Ren 的头像
Samuel Ren1 天前

So that’s what this is referring to

めるる 的头像
めるる1 天前

That’s a remarkable leap in rocket-engine design—lighter, simpler, and assembled in under a day.

Nickinhawaii 的头像
Nickinhawaii1 天前

@grok compare this to the raptor 3

cosmo 🇺🇸 的头像
cosmo 🇺🇸1 天前

How does this compare to the starship raptor engines @grok

Perkeo Stanczyk, JD 的头像
Perkeo Stanczyk, JD1 天前

@BigImpactHumans Prove it

Chris Robovan 的头像
Chris Robovan1 天前

Looks like a Raptor 2

Michael Jolley 的头像
Michael Jolley1 天前

🇺🇸🇺🇸🇺🇸

Nonstop 的头像
Nonstop1 天前

Fantastic! LNG is very good for the environment and for preserving nature 👏

Brent 的头像
Brent1 天前

@grok How does this new Blue Origin rocket compare to SpaceX ?

Kyle Thompson 的头像
Kyle Thompson1 天前

715k lbf (+11.7% vs BE-4), 30% lighter, 50% fewer parts, under a day to assemble. Spec sheet looks strong. Flight cadence is still the harder test.

Kekius Pisimus 的头像
Kekius Pisimus1 天前

Raptor 3 was introduced 2 years ago.

Sam Koda 的头像
Sam Koda1 天前

Why whenever I see a list of specs from you I expect to see ‘No self driving’?

W² 的头像
W²1 天前

Hey @grok compare to SpaceX Raptor and predict when Northstar will be used in production

Proximal AI 的头像
Proximal AI1 天前

Elon makes everybody step up their game

Guy 的头像
Guy1 天前

715k lbf finally got a name

Michael Sullivan 的头像
Michael Sullivan1 天前

@grok how does this compare to spacex raptor 3?

相关视频

Our new booster engine, Northstar, was built from the ground up by a scrappy team focused on weight, cost, manufacturability, and performance. More than 65% of the engine is additively manufactured using our in-house 3D printing capability. Northstar can be assembled in less than a day and produces 715,000 pounds of thrust.
0:37

Our new booster engine, Northstar, was built from the ground up by a scrappy team focused on weight, cost, manufacturability, and performance. More than 65% of the engine is additively manufactured using our in-house 3D printing capability. Northstar can be assembled in less than a day and produces 715,000 pounds of thrust.

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In a recent hotfire our BE-3U engine reached more than 211,500 lbf thrust. That makes BE-3U the highest thrust-to-weight hydrogen engine in history, at more than 90! Here is the video of that test for your enjoyment.

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17,191 次观看 • 10 个月前

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While India sleeps, at 3 AM, EtherealX strikes 🔥 EtherealX is developing a new rocket engine cycle (Full Flow Segregated Cooling Cycle - FFCC) specifically designed around the requirements of full rocket reusability, something the company says is a first-of-its-kind approach in rocketry. A few CRAZY things they announced: > 80 launches/year with just 4 rockets: targeting ~20 launches per rocket annually. > Designing the engine around full reusability, not bolting reusability onto an existing architecture. > Claiming >99% efficiency 🤯 while aiming for mass-producible, lower-complexity engines. > They claim RP-1 offers 3–4× higher heat-sink capability than cryogenic fuels, helping with thermal management. > Targeting 100 bar chamber pressure with a simpler engine architecture instead of ultra-complex staged-combustion designs. > Instead of betting everything on one untested cycle, they're developing an entire family of engine cycles and letting testing determine the winner.

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A380 takeoff, engine view from a window seat. Four engines spooling up to full thrust. Depending on the engine variant, each A380 engine can produce roughly 75,500 lbf of takeoff thrust. Multiply that by four and you’re looking at an average of 302,000 lbf of combined thrust pushing this giant down the runway✈️

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3:23

We fired a really cool rocket engine - and broke some records while we were at it. 🔥This Rotating Detonation Rocket Engine produced more than 4,000 pounds of thrust, and included a 300-second continuous burn, which is believed to have set the record for longest duration hot firing of an RDRE engine to date. Watch it fire:

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RUSSIAN KAMAZ PLANT: MANUFACTURING TRUCK ENGINES IN SECONDS The engine plant of Russia's KAMAZ relies on advanced technologies and automated production lines that allow certain stages of truck engine manufacturing and assembly to be executed in just a few seconds, with high precision and efficiency.

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Thirteen successful engine startups totaling 770 seconds of cumulative run time have been completed to date on the latest E-2 engine sample. Testing of this unit will continue to further characterize performance and extend the rated service life. E-2 is engineered to power spaceflight with rapid reusability and exceptional reliability at low cost. Propellants: LOX/Kerosene Thrust: 22k lbf (10 tf) Isp Sea Level: 290 s Isp Vacuum: 327 s Isp Vac Version: 365 s Cycle: Ox-Rich Staged Combustion

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12,880 次观看 • 1 年前

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Intuitive Machines flight controllers successfully fired the first liquid methane and liquid oxygen engine in space, completing the IM-1 mission engine commissioning. This engine firing included a full thrust mainstage engine burn and throttle down-profile necessary to land on the Moon. 🧵(16FEB2024 2020 CST) 1/3

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358,738 次观看 • 2 年前

How complex is it to build a fighter jet engine? Neeraj Khandelwal: "At least 3 to 4 times more complex than building a rocket engine." "Technically, they are challenging because increasing the thrust of fighter jet engines is very complex. They have to rely on air for oxygen to burn the fuel." "And fighter jet engines need to run for hours and hours. They require a different level of reliability, and they carry people. The fighter jet itself is expensive, and the testing, reliability requirements and qualification criteria for the engine are very stringent."
2:04

How complex is it to build a fighter jet engine? Neeraj Khandelwal: "At least 3 to 4 times more complex than building a rocket engine." "Technically, they are challenging because increasing the thrust of fighter jet engines is very complex. They have to rely on air for oxygen to burn the fuel." "And fighter jet engines need to run for hours and hours. They require a different level of reliability, and they carry people. The fighter jet itself is expensive, and the testing, reliability requirements and qualification criteria for the engine are very stringent."

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131,884 次观看 • 8 天前

E-2 has achieved steady expander cycle mode. In this test video, 30 seconds of expander cycle mode are demonstrated on the tail end of an 80-second test fire that began in Ox-Rich Staged Combustion (ORSC) mode. In expander mode, thrust was reduced from 23,000 lbf to 6,500 lbf, corresponding to a 28% throttle setting. To our knowledge E-2 is the first kerolox rocket engine to demonstrate a transition from ORSC to expander cycle operation on the same hardware during a test fire, thanks to our LOX cooled combustion chamber. This low throttle capability could be useful for landing burns by reducing thrust to weight ratio and providing greater flexibility to correct deviations from the planned landing trajectory.
0:39

E-2 has achieved steady expander cycle mode. In this test video, 30 seconds of expander cycle mode are demonstrated on the tail end of an 80-second test fire that began in Ox-Rich Staged Combustion (ORSC) mode. In expander mode, thrust was reduced from 23,000 lbf to 6,500 lbf, corresponding to a 28% throttle setting. To our knowledge E-2 is the first kerolox rocket engine to demonstrate a transition from ORSC to expander cycle operation on the same hardware during a test fire, thanks to our LOX cooled combustion chamber. This low throttle capability could be useful for landing burns by reducing thrust to weight ratio and providing greater flexibility to correct deviations from the planned landing trajectory.

LΛUNCHER

81,175 次观看 • 4 天前