22 Dec 2024, 01:03 [ UTC - 5; DST ]
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Post subject: Re: Spacex Starship OFT  Posted: 22 Nov 2024, 09:26 |
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Joined: 07/19/10
Posts: 2984
Post Likes: +1407
Company: Keller Williams Realty
Location: Madison, WI (91C)
Aircraft: 1967 Bonanza V35
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Username Protected wrote: Do a close up and look at the engines,
inside the thrust chambers (nozzles).
Some of the injector plates look different,
like some are burning differently.
Hmph.
Those might be different generation engines. They said on the call they used Raptors 2.5, which was news to me (there was very little mention about 2.5, everybody talks about either 2 or the new, slick 3). It tells me that there is constant change in the hardware and the set on the booster might be from different batches. It might also be deliberate testing of different flow settings/mixtures. I'm sure every team tinkers with many variables on each of the early test flights. Until in commercial service, those differences should be treated as normal/planned 
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Post subject: Re: Spacex Starship OFT Posted: 22 Nov 2024, 10:46 |
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Joined: 11/03/08
Posts: 15744
Post Likes: +25261
Location: Peachtree City GA / Stoke-On-Trent UK
Aircraft: A33
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Username Protected wrote: Do a close up and look at the engines,
inside the thrust chambers (nozzles).
Some of the injector plates look different,
like some are burning differently.
you have to remember, as you look at the inner motors you are looking through the exhaust plumes of the outer motors.
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Post subject: Re: Spacex Starship OFT Posted: 22 Nov 2024, 11:26 |
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Joined: 07/19/10
Posts: 2984
Post Likes: +1407
Company: Keller Williams Realty
Location: Madison, WI (91C)
Aircraft: 1967 Bonanza V35
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Username Protected wrote: ...I'm also kinda surprised that they appear to be randomly located.
I'd think symmetry and arranging them in groups would be a priority. The priority could be to evaluate vehicle's response to asymmetric trust.
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Post subject: Re: Spacex Starship OFT Posted: 22 Nov 2024, 11:58 |
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Joined: 11/03/08
Posts: 15744
Post Likes: +25261
Location: Peachtree City GA / Stoke-On-Trent UK
Aircraft: A33
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Username Protected wrote: ...I'm also kinda surprised that they appear to be randomly located.
I'd think symmetry and arranging them in groups would be a priority. The priority could be to evaluate vehicle's response to asymmetric trust.
and the design of the structure above the motors to take the thrust, and the piping connecting them, etc, etc. There are 1000 issues none of understand that went into the design and placement of those motors
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