Author Topic: Blue Origin's BE-4 Engine  (Read 870304 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.

Offline 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

Offline 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!

 

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