Author Topic: Blue Origin's BE-4 Engine  (Read 1137856 times)

Online Vettedrmr

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Re: Blue Origin's BE-4 Engine
« Reply #2560 on: 10/10/2023 08:31 pm »
That's good news.  Hopefully design changes made between these 2 engines and the 1st set (perhaps zero?) won't require much in the way of additional qualification tests (what we called "delta QT").
Aviation/space enthusiast, retired control system SW engineer, doesn't know anything!

Online Robert_the_Doll

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Re: Blue Origin's BE-4 Engine
« Reply #2561 on: 10/10/2023 10:49 pm »
Tory Bruno has said that there would be no redoing of qualification as the issue was due to workmanship and not a design issue.

Online Vettedrmr

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Re: Blue Origin's BE-4 Engine
« Reply #2562 on: 10/10/2023 10:59 pm »
Tory Bruno has said that there would be no redoing of qualification as the issue was due to workmanship and not a design issue.

Which issue are you referring to?  The one from several months ago that was satisfied?

All I'm referring to is the normal design process of incorporating improvements in early releases of hardware or software.  In my career (military aircraft development), all changes had to be qualified.  Those parts that were directly affected had to be completely retested; those that weren't but that interfaced with the changed components just had integration tests rerun.

And obviously, as we got more real-world experience this work tailed off until entire blocks of products were delivered in a typical production fashion.
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Online Robert_the_Doll

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Re: Blue Origin's BE-4 Engine
« Reply #2563 on: 10/27/2023 02:16 am »
Cross posting this to here since it is news about the status of the fourth and fifth known flight BE-4s.

https://twitter.com/SgtSchrodinger/status/1717603172708229449
https://twitter.com/torybruno/status/1717643108379222205

Quote
Speaking of ATPs, do you have an update for us on the Cert-2 BE-4s? A few weeks ago you'd said they were in ATP in Texas, and I hope things are going well or went well.

Quote
Going well.  Booster is built up and ready to receive them.

Online Robert_the_Doll

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Re: Blue Origin's BE-4 Engine
« Reply #2564 on: 11/08/2023 08:16 pm »
Cross posting these links here from the Blue Origin websites since BE-4 is being exclusively shown in the Huntsville video:
https://www.facebook.com/blueorigin/videos/1270696480283142/

https://twitter.com/blueorigin/status/1722310807357186251

Some screencaps. The blue plate is interesting since this part has been refurbished and is dated back to February of this year over 8 months ago.



« Last Edit: 11/08/2023 08:35 pm by Robert_the_Doll »

Offline harrystranger

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Re: Blue Origin's BE-4 Engine
« Reply #2565 on: 12/12/2023 01:07 pm »
For what it's worth, this is the first sign of testing that I can see in about two months
https://twitter.com/Harry__Stranger/status/1734565764659892643

Online Rakietwawka2021

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Re: Blue Origin's BE-4 Engine
« Reply #2566 on: 12/12/2023 05:26 pm »

Huntsville tour

Online Robert_the_Doll

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Re: Blue Origin's BE-4 Engine
« Reply #2567 on: 12/12/2023 08:22 pm »
Incredible inside views of Huntsville, and this finally helps to put to rest the "only parts" of BE-4s seen:

Offline spacenut

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Re: Blue Origin's BE-4 Engine
« Reply #2568 on: 12/12/2023 08:36 pm »
Any chance in the future the BE-4 will increase the chamber pressure and thrust as part of engine improvements?  It is a larger engine than Raptor and Raptor has increased it's thrust and chamber pressure while actually being tested on rockets. 

Online Robert_the_Doll

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Re: Blue Origin's BE-4 Engine
« Reply #2569 on: 12/12/2023 09:06 pm »
Any chance in the future the BE-4 will increase the chamber pressure and thrust as part of engine improvements?  It is a larger engine than Raptor and Raptor has increased it's thrust and chamber pressure while actually being tested on rockets.

They all ready have increased not only thrust, but also specific impulse, according to Tory Bruno in tweets and in interviews.

Online matthewkantar

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Re: Blue Origin's BE-4 Engine
« Reply #2570 on: 12/12/2023 09:12 pm »
I stopped watching after the sixth time he sited the square footage. The bluster and unsupported superlatives are turble. Nice to get some views of hardware tho. Telling the viewer what the parts are wouldn’t hurt.

So at 559,000 sqft, that’s one sqft per pound of thrust, no? I wonder how the other engine makers are doing by his metric?

Online catdlr

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Re: Blue Origin's BE-4 Engine
« Reply #2571 on: 12/12/2023 09:15 pm »
I stopped watching after the sixth time he sited the square footage. The bluster and unsupported superlatives are turble. Nice to get some views of hardware tho. Telling the viewer what the parts are wouldn’t hurt.

So at 559,000 sqft, that’s one sqft per pound of thrust, no? I wonder how the other engine makers are doing by his metric?

I got tired of him holding the camera on himself instead of just panning around with voiceover.  Just a few minutes and I gave up.  I could have been a way better video of what's happened in that building.
« Last Edit: 12/12/2023 09:16 pm by catdlr »
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Online Rakietwawka2021

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Re: Blue Origin's BE-4 Engine
« Reply #2572 on: 12/12/2023 10:13 pm »
Do you have any idea what's this?

Online matthewkantar

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Re: Blue Origin's BE-4 Engine
« Reply #2573 on: 12/12/2023 11:02 pm »
Do you have any idea what's this?

Looks like a BE4 combustion chamber?

Online DanClemmensen

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Re: Blue Origin's BE-4 Engine
« Reply #2574 on: 12/12/2023 11:17 pm »
Do you have any idea what's this?
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Offline Steve G

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Re: Blue Origin's BE-4 Engine
« Reply #2575 on: 12/13/2023 12:34 am »
Have we seen a video from SpaceX with a similar tour of Raptor production?

Online bombyx

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Re: Blue Origin's BE-4 Engine
« Reply #2576 on: 12/13/2023 12:38 am »
Do you have any idea what's this?

 It is a BE-3U combustion chamber.   

« Last Edit: 12/13/2023 12:39 am by bombyx »

Offline Starshipdown

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Re: Blue Origin's BE-4 Engine
« Reply #2577 on: 12/14/2023 07:41 am »
I went through the video and grabbed a few very high-res pics. Also, a huge shout out and thanks to Blue for allowing Titans of CNC Machining to do this. It helps put to rest a lot of nonsense and it gets people excited about what you're doing here.


Offline harrystranger

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Re: Blue Origin's BE-4 Engine
« Reply #2578 on: 01/07/2024 12:12 am »
A high resolution satellite image of the BE-4 test stand in Texas that was captured yesterday.
https://twitter.com/Harry__Stranger/status/1743631549877371225

Offline Tywin

Re: Blue Origin's BE-4 Engine
« Reply #2579 on: 01/08/2024 06:40 am »
Congrats!!! Blue team...

The most powerful methalox engines, in the world are NOW operational!!!!

What a BEAST BE-4!!!
The knowledge is power...Everything is connected...
The Turtle continues at a steady pace ...

 

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