Author Topic: Relativity Space - Terran R  (Read 131940 times)

Offline TrevorMonty

Re: Relativity Space - Terran R
« Reply #520 on: 12/16/2023 05:43 pm »
Very impressive.

Offline Robotbeat

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Re: Relativity Space - Terran R
« Reply #521 on: 12/16/2023 07:30 pm »

Well, that firmly puts Relativity's Aeon-R engine readiness ahead of Firefly's Miranda.

Firefly still might reach initial operational capability faster as they are going to use the existing Antares upper stage (and there are fewer engines on the first stage and the launch pad is existing and recently operational) at first, but Terran-R (expendable) will be about 3 times Antares 330's 10 tons to IMLEO (and about 2x the full MLV's capacity to LEO).

But having the engine already do a flight-like mission profile firing (granted, at 70% thrust... could be enough for an initial test flight) is a huge deal.

Note, I like all the F9-alikes. Neutron and Antares330 I like because they'll launch literally in sight from where I sit now as I type this in Virginia, New Glenn and Relativity because they're the closest we've got to Starship competitors (significantly greater than F9 performance, the cheapest propellant combo methalox, and both eventually fully reusable plans). And Stoke because they have a fantastic approach to upper stage reuse.
« Last Edit: 12/16/2023 07:45 pm by Robotbeat »
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Offline deltaV

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Re: Relativity Space - Terran R
« Reply #522 on: 12/17/2023 11:00 pm »
I like all the F9-alikes ... New Glenn and Relativity because they're the closest we've got to Starship competitors.
Another reason to like New Glenn and Relativity is they'll presumably compete with ULA for National Security Space Launch. At least eventually - Terran R may not be ready in time for the current competition but hopefully they'll be ready for the next one in ~2028. Competitive pressures on ULA will probably help taxpayers more than competitive pressures on SpaceX.

Offline chopsticks

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Re: Relativity Space - Terran R
« Reply #523 on: 12/18/2023 02:16 am »
Also, all things being equal, a F9 class rocket but with methalox instead RP1/lox for a prop choice is arguably a better rocket over all for rapid turnaround purposes. I'm not suggesting that these guys are going to suddenly overtake F9 in terms of launch cadence and/or turnaround but it's a bit better since you don't have (as much) coking to deal with and therefore have a theoretical shorter time of refurbishment required. Probably a bit more future-proof. Anyway, I'm impressed by Relativity's speed of development here.

Online catdlr

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Re: Relativity Space - Terran R
« Reply #524 on: 12/20/2023 09:03 pm »
It's Tony De La Rosa, ...and no, I'm not a Feline Dealer!!

Online DanClemmensen

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Re: Relativity Space - Terran R
« Reply #525 on: 12/20/2023 09:14 pm »
Also, all things being equal, a F9 class rocket but with methalox instead RP1/lox for a prop choice is arguably a better rocket over all for rapid turnaround purposes. I'm not suggesting that these guys are going to suddenly overtake F9 in terms of launch cadence and/or turnaround but it's a bit better since you don't have (as much) coking to deal with and therefore have a theoretical shorter time of refurbishment required. Probably a bit more future-proof. Anyway, I'm impressed by Relativity's speed of development here.
If Terran R is viable, it may well overtake F9's cadence. F9 will be tailing down toward EOL, IMO with a peak not later than 2028, as Starship ramps up. F9 will continue to launch Dragon 2 at least until 2030, probably less than 5/yr.

Offline FutureSpaceTourist

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Re: Relativity Space - Terran R
« Reply #526 on: 12/20/2023 09:33 pm »
https://twitter.com/relativityspace/status/1737593639487115690

Quote
Business on top, party on the bottom. 📍R Complex, @NASAStennis  : Aeon R MDC key learnings.

🔑 Activated and learned to operate a new test facility.
🔑 Ran the longest continuous hot fire duration of the engine hardware.
🔑 Demonstrated start up and shutdown of the engine system.
🔑 Anchored engine performance and pressure ladder against real data.

Offline FutureSpaceTourist

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Re: Relativity Space - Terran R
« Reply #527 on: 12/21/2023 08:13 pm »

Offline FutureSpaceTourist

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Re: Relativity Space - Terran R
« Reply #528 on: 12/22/2023 03:08 pm »
twitter.com/relativityspace/status/1738229679814054327

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Building Aeon R: A BTS look at embracing an iterative approach 🤝 and additive capabilities in practice. The method behind the magic: using powder bed fusion printing (PBF). 🧵

https://twitter.com/relativityspace/status/1738229944784925018

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It starts in-house. 🏡 From initial design release ➡️ CAD ➡️ Printing ➡️ Machine Shop ➡️ to the Propulsion integration floor.

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The flexibility of PBF printing empowers us to modify printed features, testing numerous versions at component or engine levels before final selection. 💫

https://twitter.com/relativityspace/status/1738230505466908824

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🌟 A shining example? Aeon R’s gas generator (GG) injector – traditionally it would take dozens of parts to come all together to create one injector puck but by utilizing additive we are able to make all of that into two, three parts.

« Last Edit: 12/22/2023 03:13 pm by FutureSpaceTourist »

Offline Robert_the_Doll

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Re: Relativity Space - Terran R
« Reply #529 on: 01/12/2024 11:31 pm »
https://twitter.com/relativityspace/status/1745964087232831713
Quote
✏️ Class is in session: Aeon R edition. We’re revisiting the basics, breaking down the anatomy of our Aeon R engine, 101 style.

💡Curious how our engine subsystems work together to create thrust and blue fire? This one’s for you.

Offline Robert_the_Doll

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Re: Relativity Space - Terran R
« Reply #530 on: 01/12/2024 11:36 pm »
https://twitter.com/relativityspace/status/1745964228681601031
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🤔Now that you know how our engine works.... see how they’re built? 👇

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Re: Relativity Space - Terran R
« Reply #531 on: 01/12/2024 11:51 pm »
It's Tony De La Rosa, ...and no, I'm not a Feline Dealer!!

Offline Robert_the_Doll

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Re: Relativity Space - Terran R
« Reply #533 on: 02/21/2024 01:56 pm »
The post contains a link to the report but is also provided as an attachment.

https://twitter.com/breadfrom/status/1760068053390250435

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New: Great news for
@relativityspace
 - the Space Force issued a Finding of No Significant Impact (FONSI) for the company's infrastructure upgrades to support Terran R launches from LC-16 at Cape Canaveral

https://patrick.spaceforce.mil/Resources/Environmental/FileId/125061/

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Re: Relativity Space - Terran R
« Reply #534 on: 02/27/2024 05:52 pm »
Relatively Speaking: Aeon R Turbopumps Explained



Quote

Feb 27, 2024  #engineering #engine #space
💡 We're taking a deep dive into Aeon R's turbopumps, the heart of Aeon R. With additive manufacturing, we're refining our turbopump design, reducing parts and enhancing efficiency. Hear directly from the team on our approach to design, testing, and iteration.

0:00 – 0:27 Turbopumps explained
0:28: -1:14 Dual Shaft system explained
1:15 – 1:29 What makes our turbopump unique
1:30 – 2:16 Long Beach Component Test Yard
2:17 – 2:42 Testing turbopumps
2:43 –3:01 Benefits of testing in our backyard
3:02 – 3:50 Collaborative teams

🔥 Learn more about Aeon R: https://bit.ly/aeonr
🚀 https://bit.ly/RelativitySpaceCareers 
It's Tony De La Rosa, ...and no, I'm not a Feline Dealer!!

Offline FutureSpaceTourist

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Re: Relativity Space - Terran R
« Reply #535 on: 03/14/2024 03:18 pm »
https://twitter.com/relativityspace/status/1768310427430367462

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POV: On the integration floor technicians install turbopumps onto the latest #AeonR engine before shipping off to NASA Stennis for testing on the R stand.

Offline FutureSpaceTourist

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Re: Relativity Space - Terran R
« Reply #536 on: 03/19/2024 05:36 pm »

Offline StraumliBlight

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Re: Relativity Space - Terran R
« Reply #537 on: 04/10/2024 04:28 pm »
Relativity Space delays NSSL bid, focuses on 2026 Terran R debut:

Quote
Relativity was initially aiming to compete for the first round of NSSL Phase 3 contracts expected to be awarded later this year. However, the California-based company’s new Terran R rocket won’t fly until 2026 at the earliest, which falls outside the timeframe for this year’s NSSL Phase 3 awards.

Offline deltaV

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Re: Relativity Space - Terran R
« Reply #538 on: 04/10/2024 08:54 pm »
Relativity Space delays NSSL bid, focuses on 2026 Terran R debut:

Quote
Relativity was initially aiming to compete for the first round of NSSL Phase 3 contracts expected to be awarded later this year. However, the California-based company’s new Terran R rocket won’t fly until 2026 at the earliest, which falls outside the timeframe for this year’s NSSL Phase 3 awards.

That article is unclear, but I think what it's saying is that Relativity has given up on launching Terran R by December 15, 2025, which implies they won't satisfy the launch-within-12-months criterion for starting the lane 1 on-ramp during the yearly opportunity 1 year earlier on December 15, 2024. So they'll probably start the lane 1 on-ramp on December 15, 2025 and be eligible for task orders (i.e. be assigned specific payloads to launch) on December 15, 2026 assuming they launch by then. This isn't a terribly big deal since they're only losing access to 1 year of lane 1 launches.

The article doesn't mention lane 2, but IIRC we previously learned that Relativity didn't bid for lane 2 last December. I'm hoping that Relativity will bid for lane 2 at the next opportunity in ~5 years since they're the best hope currently of giving SpaceX/ULA/Blue competition for the 3 slots. Back of the envelope calculations suggest expendable Terran R plus a high performance upper stage should be able to meet lane 2 requirements (they have a bit more LEO capacity than Vulcan which can). However I haven't seen any actual evidence that Relativity is or isn't planning to bid for lane 2.
« Last Edit: 04/10/2024 10:10 pm by deltaV »

 

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