Tim Ellis
@thetimellis
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Cofounder, Board Member, & fmr CEO of @RelativitySpace. Building humanity’s multiplanetary future.
Los Angeles, CA
Joined January 2016
Today marks a bold new chapter for @relativityspace - read below:. Some dreams are so audacious they’re worth dedicating significant years of your life to. Nine years ago, we scribbled Relativity’s wild vision on the back of a Starbucks receipt, never imagining how many
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RT @relativityspace: From factory floor to launch site, the Terran R program is gaining serious momentum. Here’s the latest from May across….
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RT @relativityspace: Throttle valves, isolation valves, igniter solenoid valves – you name it, we've made it.
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RT @relativityspace: Terran R is coming to life. We’ve advanced design fidelity across all subsystems, hit significant hardware and softwar….
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Flight hardware and in-depth update on the entire Terran R program!! SO proud of this team 🚀.
Exciting times at Relativity! We’ve completed the vehicle-level critical design review for Terran R and begun flight production. It's full steam ahead towards first launch and beyond. 🚀 Catch up on the latest developments with our in-depth program update:
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Very cool.
I’ve never been more thankful to be an iPhone user. Due to the lack of cell service, EVERYONE in Asheville NC right now on iOS 18 has been able to get messages out and in with the Satellite messaging feature. This is literally saving lives @Apple.
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Humans for scale! Terran R is optimized for the commercial satellite industry and ideal payload mass and volume.
Time to take a look at Terran R’s payload envelope, designed to strike the perfect balance of payload capacity 🤝 launch frequency 🤝 mass-to-orbit efficiency. 📸: fairing with humans for scale 🚶
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Flight hardware for Terran R is in full swing! More updates over coming weeks, and continued big news 👀 @relativityspace.
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Clean !. Making rapid progress on the entire Terran R program as we ramp up hardware production across all systems.
👀 Experience Aeon R’s first full-size, fully 3D-printed skirt in action during the latest thrust chamber assembly testing campaign @NASAStennis. *sound on
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3 full iterations on Aeon R engine design + test already. Quite different between designs, this means Terran R will be more mature and advanced for reliable reusability and performance by the time it flies in 2026.
Making blue fire is fun. But knowing our Aeon R engines will effectively propel Terran R to where it needs to go is more fun. 🚀
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Full flight duration, full power.
On the test stand Aeon R fires at 100% power for 180 seconds 🔥. 📍 @NASAStennis, R Complex.🚀 180 seconds of hot fire = the max duration for a Terran R first stage flight plus margin. 🔁 Test, learn, iterate, repeat.
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Rockets are complex and a lot needs to get done: production/test/launch infrastructure, regulatory, an experienced team, and win customers to prove what you’re building is actually ideal for solving their needs (prove product-market fit). And then, of course, all the rocket.
🔥 @NASAStennis, #AeonR engine: Unleashing 100% power! 268K pounds of thrust full power hot fire in the books.
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We are testing across this engine program at full scale across all the components nearly every single day. This is what it takes to launch Terran R in 2026.
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100% power Aeon R full engine test, right out of the gate on our Block 2 engine iteration 😎 this one is 268,000 pound thrust vs 258,000 before, +many design upgrades. Block 3 is being built in the factory now. Extreme iteration speed for our reusable Terran R rocket 🦾🇺🇸
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Thank you Gov Reeves for your time and visit - we are proud to be in NASA Stennis and Mississippi building the future of humanity in space 🚀🌌🇺🇸.
Productive meetings today with @RelativitySpace. The trip to space starts in Mississippi and they’re a big reason why. Thanks @thetimellis for your continued investment in Stennis and Mississippi!. Together, we will continue to do awesome things for America! 🇺🇸
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Don’t forget this engine uses more 3D printing than anything else. I think keeping the same engine cycle and pump/gas generator configuration as Aeon 1 was a good idea to optimize for time to market and solving customer’s needs ASAP.
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CRAZY.
📣 Aeon R Mission Duty Cycle complete!!! Last night @NASAStennis #AeonR burned in a flight-like configuration for 143 seconds at 70% power – marking a record-breaking pace for engine development and a very speedy 48-hour turnaround from Aeon R's first ever hot fires to
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CRAZY achievement at work today… damn! Can’t wait to share ;).
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