Author Topic: Blue Origin's BE-4 Engine  (Read 908847 times)

Offline Purona

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Re: Blue Origin's BE-4 Engine
« Reply #2120 on: 11/23/2022 12:41 pm »
it's the first set of engines

it matches the picture Tory Bruno posted in July when flight engine 1 was fully assembled
The fact that alot of people are holding 1 finger makes me think this was taken to commemorate the first engine being completed

probably on the same day considering the position of mundane objects haven't changed.

Offline Vahe231991

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Re: Blue Origin's BE-4 Engine
« Reply #2121 on: 11/23/2022 02:43 pm »
it's the first set of engines

it matches the picture Tory Bruno posted in July when flight engine 1 was fully assembled
The fact that alot of people are holding 1 finger makes me think this was taken to commemorate the first engine being completed

probably on the same day considering the position of mundane objects haven't changed.
That's what I was thinking. The photos of the BE-4 engines behind the students date to the summer of this year because the first flight-ready BE-4s have been mated to the first stage of the first Vulcan rocket.

Offline FutureSpaceTourist

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Re: Blue Origin's BE-4 Engine
« Reply #2122 on: 11/30/2022 11:12 pm »
https://twitter.com/harry__stranger/status/1598106301363781632

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Sentinel-2 satellite imagery shows evidence of a @blueorigin BE-4 engine test fire in the past week.

Online Starshipdown

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Re: Blue Origin's BE-4 Engine
« Reply #2123 on: 12/01/2022 08:09 pm »
Welp, we now know which two engines that ain't out there firing! So this might be our first look at a qual test.
« Last Edit: 12/02/2022 04:11 am by Starshipdown »

Offline FutureSpaceTourist

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Re: Blue Origin's BE-4 Engine
« Reply #2124 on: 12/01/2022 08:42 pm »
Follow-ups to Harry’s tweet:

https://twitter.com/torybruno/status/1598365633057419264

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Probably. @blueorigin has made BE4 engine testing pretty routine. Hot firings every week…

twitter.com/mkanug1/status/1598366297103994880

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Are they testing your engines

https://twitter.com/torybruno/status/1598381245431484429

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Yes

Online Starshipdown

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Re: Blue Origin's BE-4 Engine
« Reply #2125 on: 12/02/2022 09:40 am »
The Tory comments are a bit vague and cryptic as usual, but still interesting. Bruno uses a plural here "hot firings every week", so if there's been a least two engine firings each week, then why aren't more firing indications showing up on the Sentinel-2 images? Or are we only seeing what Harry has time to go through?

The "yes" he gives to the second question begs the question; does he mean test firing qual engines or did another flight set get delivered?

Offline Purona

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Re: Blue Origin's BE-4 Engine
« Reply #2126 on: 12/02/2022 10:04 am »
The Tory comments are a bit vague and cryptic as usual, but still interesting. Bruno uses a plural here "hot firings every week", so if there's been a least two engine firings each week, then why aren't more firing indications showing up on the Sentinel-2 images? Or are we only seeing what Harry has time to go through?

The "yes" he gives to the second question begs the question; does he mean test firing qual engines or did another flight set get delivered?

The satellite passes over every few days. So, you can only tell if something may have happened after several day intervals. Plus not every image is usable so you might be waiting more than 1 interval per image

Offline Vettedrmr

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Re: Blue Origin's BE-4 Engine
« Reply #2127 on: 12/02/2022 12:00 pm »
The "yes" he gives to the second question begs the question; does he mean test firing qual engines or did another flight set get delivered?

I can't see BO spending test time/assets on ATPs for a 2nd shipset of engines before completing qual tests on the 1st ship set design.  I just wish we got some info on how the qual tests are going.
Aviation/space enthusiast, retired control system SW engineer, doesn't know anything!

Offline FutureSpaceTourist

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Re: Blue Origin's BE-4 Engine
« Reply #2128 on: 12/04/2022 06:28 am »
Further follow-ups (and not what I was expecting!):

twitter.com/hexhawk_2/status/1598492781990871040

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These would be flight 2 engines?

https://twitter.com/torybruno/status/1599033216123695106

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No. This was a half scale demo

Offline bombyx

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Re: Blue Origin's BE-4 Engine
« Reply #2129 on: 12/04/2022 01:59 pm »
Half scale demo is for LOFTID , not BE-4  :

https://twitter.com/Felipe_Stipp0/status/1599412787289079809

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Tory, i think that you confused this question about the second pair of the BE-4 with LOFTID.
« Last Edit: 12/04/2022 02:04 pm by bombyx »

Online Robert_the_Doll

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Re: Blue Origin's BE-4 Engine
« Reply #2130 on: 12/04/2022 03:25 pm »
The Tory comments are a bit vague and cryptic as usual, but still interesting. Bruno uses a plural here "hot firings every week", so if there's been a least two engine firings each week, then why aren't more firing indications showing up on the Sentinel-2 images? Or are we only seeing what Harry has time to go through?

The "yes" he gives to the second question begs the question; does he mean test firing qual engines or did another flight set get delivered?

The satellite passes over every few days. So, you can only tell if something may have happened after several day intervals. Plus not every image is usable so you might be waiting more than 1 interval per image

If the limiter in obtaining images is cutouts of Sentinel satellite coverage over a given area, then perhaps seeking images from other satellites, such as Worldview, RapidEye, or Landsat, etc. which could have coverage when Sentinel does not might be in order.

Offline harrystranger

Re: Blue Origin's BE-4 Engine
« Reply #2131 on: 12/05/2022 05:19 am »
The Tory comments are a bit vague and cryptic as usual, but still interesting. Bruno uses a plural here "hot firings every week", so if there's been a least two engine firings each week, then why aren't more firing indications showing up on the Sentinel-2 images? Or are we only seeing what Harry has time to go through?

The "yes" he gives to the second question begs the question; does he mean test firing qual engines or did another flight set get delivered?
The satellite passes over every few days. So, you can only tell if something may have happened after several day intervals. Plus not every image is usable so you might be waiting more than 1 interval per image

If the limiter in obtaining images is cutouts of Sentinel satellite coverage over a given area, then perhaps seeking images from other satellites, such as Worldview, RapidEye, or Landsat, etc. which could have coverage when Sentinel does not might be in order.
Working on a fix for daily, or as close as possible :)
« Last Edit: 12/05/2022 05:20 am by harrystranger »
It can be really hard to interpret satellite imagery! Local knowledge & an understanding of an area’s history are crucial pieces of the puzzle.
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Offline JCRM

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Re: Blue Origin's BE-4 Engine
« Reply #2132 on: 12/05/2022 11:51 am »
The Tory comments are a bit vague and cryptic as usual, but still interesting. Bruno uses a plural here "hot firings every week",


No, a single firing a week would be legitimately described as "hot firings every week"

Online Robert_the_Doll

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Re: Blue Origin's BE-4 Engine
« Reply #2133 on: 12/05/2022 04:48 pm »
The Tory comments are a bit vague and cryptic as usual, but still interesting. Bruno uses a plural here "hot firings every week",


No, a single firing a week would be legitimately described as "hot firings every week"

If he had meant that, then"A hot firing every week" is what I would expect to have seen him write. It is possible he made a typo and accidentally put in the "s". It has happened before. However, we know from other sources that XEEx has done up to three test firings in a week.

Offline jimvela

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Re: Blue Origin's BE-4 Engine
« Reply #2134 on: 12/05/2022 07:15 pm »
What's up with all the pedantry?

If the comment was describing a period of weeks, firing at only one per week, over that period of time any mention of firing cadence would indeed be proper to describe firings- as over that period of weeks there will be multiple firings.

Offline DrHeywoodFloyd

Re: Blue Origin's BE-4 Engine
« Reply #2135 on: 12/06/2022 02:46 am »
Does anyone know what is happening with the Test Stand 4670 at Huntsville? Has it been certified to start testing BE-4 Engines?

Online Robert_the_Doll

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Re: Blue Origin's BE-4 Engine
« Reply #2136 on: 12/06/2022 07:39 pm »
What's up with all the pedantry?

If the comment was describing a period of weeks, firing at only one per week, over that period of time any mention of firing cadence would indeed be proper to describe firings- as over that period of weeks there will be multiple firings.

But that is why I believe that looking to see what is true matters. Either to get Tory Bruno to tell us, show us more videos, and or to see if increased satellite imagery can give us the data we need to pin this down.

Offline deadman1204

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Re: Blue Origin's BE-4 Engine
« Reply #2137 on: 12/06/2022 09:43 pm »
What's up with all the pedantry?

If the comment was describing a period of weeks, firing at only one per week, over that period of time any mention of firing cadence would indeed be proper to describe firings- as over that period of weeks there will be multiple firings.

But that is why I believe that looking to see what is true matters. Either to get Tory Bruno to tell us, show us more videos, and or to see if increased satellite imagery can give us the data we need to pin this down.
This won't happen. All statements are intentionally vague so that exact status cannot be determined. We're just reading tea leaves.

Offline harrystranger

Re: Blue Origin's BE-4 Engine
« Reply #2138 on: 12/07/2022 11:04 pm »
Narrowed the time of the test down to between 2022-11-28 16:39:01 UTC and 2022-11-29 17:17:56 UTC :)
Now we wait for the next one
https://twitter.com/Harry__Stranger/status/1600512530077450240
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Offline Vahe231991

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Re: Blue Origin's BE-4 Engine
« Reply #2139 on: 12/18/2022 08:43 pm »
Does Blue Origin expect to overcome the problems it had faced during manufactured the first stage BE-4 engines for the first Vulcan rocket when it conducts low-rate initial production of the BE-4 engines?
« Last Edit: 12/20/2022 07:59 pm by Vahe231991 »

 

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