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E-2 has successfully demonstrated a full mission duty cycle with margin, completing a 201 sec run at our Mojave, CA test site. Multiple 200+ sec test fires have now been completed, proving performance and reliability across engine builds. As the highest performance LOX/kerosene engine in the small launch class,... show more

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33,535 views • 9 months ago •via X (Twitter)

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E-2 making diamonds 💎💎💎 in the desert 🏜️ On September 15, 2025, our new engine unit completed its 6th test fire, a 202 sec full mission duty cycle with zero hardware issues. E-2 manufacturing and test cadence are accelerating.

E-2 making diamonds 💎💎💎 in the desert 🏜️ On September 15, 2025, our new engine unit completed its 6th test fire, a 202 sec full mission duty cycle with zero hardware issues. E-2 manufacturing and test cadence are accelerating.

LΛUNCHER

31,017 views • 9 months ago

At our Mojave, CA test site, E-2 ran at boosted thrust for a 1-minute duration, achieving 25,000 lbf thrust and measured 295 seconds Isp. Although E-2 is a kerosene/LOX engine, its plume is blue and transparent, demonstrating its 99%+ combustion efficiency. E-2 is now available for sale.

At our Mojave, CA test site, E-2 ran at boosted thrust for a 1-minute duration, achieving 25,000 lbf thrust and measured 295 seconds Isp. Although E-2 is a kerosene/LOX engine, its plume is blue and transparent, demonstrating its 99%+ combustion efficiency. E-2 is now available for sale.

LΛUNCHER

92,102 views • 1 year ago

January’s GS2 performed remarkably during our inaugural New Glenn launch, delivering our payload to orbit with less than 1% deviation from the target. Today, we completed a full duration 15-second hotfire test of the upper stage for our NG-2 mission. This time, we achieved enhanced performance from the BE-3U engine, increasing the maximum thrust from 173,000 lbf to 175,000 lbf per engine, further expanding New Glenn’s capabilities for our customers.

January’s GS2 performed remarkably during our inaugural New Glenn launch, delivering our payload to orbit with less than 1% deviation from the target. Today, we completed a full duration 15-second hotfire test of the upper stage for our NG-2 mission. This time, we achieved enhanced performance from the BE-3U engine, increasing the maximum thrust from 173,000 lbf to 175,000 lbf per engine, further expanding New Glenn’s capabilities for our customers.

Dave Limp

246,460 views • 1 year ago

Thirteen successful engine startups totaling 770 seconds of cumulative run time have been completed to date on the latest E-2 engine sample. Testing of this unit will continue to further characterize performance and extend the rated service life. E-2 is engineered to power spaceflight with rapid reusability and exceptional reliability at low cost. Propellants: LOX/Kerosene Thrust: 22k lbf (10 tf) Isp Sea Level: 290 s Isp Vacuum: 327 s Isp Vac Version: 365 s Cycle: Ox-Rich Staged Combustion

Thirteen successful engine startups totaling 770 seconds of cumulative run time have been completed to date on the latest E-2 engine sample. Testing of this unit will continue to further characterize performance and extend the rated service life. E-2 is engineered to power spaceflight with rapid reusability and exceptional reliability at low cost. Propellants: LOX/Kerosene Thrust: 22k lbf (10 tf) Isp Sea Level: 290 s Isp Vacuum: 327 s Isp Vac Version: 365 s Cycle: Ox-Rich Staged Combustion

LΛUNCHER

12,739 views • 8 months ago

Who has ever seen a LOX/Kerosene liquid 🚀 engine with a blue plume 💎💎💎💎? Not only does it look spectacular, but it also serves as undeniable proof of the 99%+ combustion efficiency achieved in this test. Enjoy this 3-minute, 20-second test of E-2, a mostly 3D-printed 22k lbf (10 tf) ORSC LOX/Kerosene liquid rocket engine. Nominal pressure: 100 bar; mixture ratio: 2.7. Recorded today at Stennis Space Center, this test also secured the duration record for the test stand. E-2 is now available for sale to launch companies.

Who has ever seen a LOX/Kerosene liquid 🚀 engine with a blue plume 💎💎💎💎? Not only does it look spectacular, but it also serves as undeniable proof of the 99%+ combustion efficiency achieved in this test. Enjoy this 3-minute, 20-second test of E-2, a mostly 3D-printed 22k lbf (10 tf) ORSC LOX/Kerosene liquid rocket engine. Nominal pressure: 100 bar; mixture ratio: 2.7. Recorded today at Stennis Space Center, this test also secured the duration record for the test stand. E-2 is now available for sale to launch companies.

LΛUNCHER

301,551 views • 2 years ago

E-2 in slow motion— E-2 is a 22k lbf (10 tf) ORSC LOX/Kerosene liquid 🚀 engine. Recorded last week at Stennis Space Center. Standby for the release of a nominal full duration test.

E-2 in slow motion— E-2 is a 22k lbf (10 tf) ORSC LOX/Kerosene liquid 🚀 engine. Recorded last week at Stennis Space Center. Standby for the release of a nominal full duration test.

LΛUNCHER

58,811 views • 2 years ago

Another Mission Duty Cycle in the books! We fired our Miranda engine at full power for 206 seconds - the full duration our 7 first stage engines will burn to lift Eclipse off the launch pad and on its way to orbit. More to come as our hot fire summer continues!

Another Mission Duty Cycle in the books! We fired our Miranda engine at full power for 206 seconds - the full duration our 7 first stage engines will burn to lift Eclipse off the launch pad and on its way to orbit. More to come as our hot fire summer continues!

Firefly Aerospace

85,069 views • 1 year ago

📣 Aeon R Mission Duty Cycle complete!!! Last night Stennis Space Center #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 successfully completing a full flight duration burn. < 2 days Aeon Rs first hot fires ➡️ Full MDC < 3 months ➡️ Powerpack install, testing, conversion to full engine, hot fires < 1 year empty land ➡️ dual-bay vertical engine test stand ≤ 2 years ➡️ 1,000+ Aeon R component level tests

📣 Aeon R Mission Duty Cycle complete!!! Last night Stennis Space Center #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 successfully completing a full flight duration burn. < 2 days Aeon Rs first hot fires ➡️ Full MDC < 3 months ➡️ Powerpack install, testing, conversion to full engine, hot fires < 1 year empty land ➡️ dual-bay vertical engine test stand ≤ 2 years ➡️ 1,000+ Aeon R component level tests

Relativity Space

355,685 views • 2 years ago

Separation test complete for Blue Ghost Mission 2! This test demonstrated the mechanisms on Elytra that release our Dual Payload Attach Fitting and enable the deployment of European Space Agency’s Lunar Pathfinder satellite into lunar orbit following separation of Blue Ghost. More on our next mission to the Moon here:

Separation test complete for Blue Ghost Mission 2! This test demonstrated the mechanisms on Elytra that release our Dual Payload Attach Fitting and enable the deployment of European Space Agency’s Lunar Pathfinder satellite into lunar orbit following separation of Blue Ghost. More on our next mission to the Moon here:

Firefly Aerospace

44,953 views • 3 months ago

Last week, we pushed our Hadfield MK IV engine and Darkhorse engine test cell to their limits ahead of our upcoming thrust vector control (TVC) and orbital engine test campaigns. It was thrilling to see this controlled test go sideways — literally! Orbital launch vehicles operate within narrow design margins and constrained safety factors, where excess mass in any subsystem directly impacts payload capacity or mission viability. Destructive and limit testing enable us to validate optimal mass-performance trade-offs across propulsion, pressure systems, and primary structures. Key outcomes from this test include: ✅ Structural margins validated – Darkhorse demonstrated stable operation under full thrust loads at gimbal angles exceeding design specifications ✅ Thermal performance characterized – Extended burn duration at off-nominal mixture ratios provided empirical data on regenerative cooling degradation modes and injector thermal limits ✅ Fault tolerance demonstrated – Engine maintained functionality despite progressive damage, validating robustness for anomalous flight conditions ✅ TVC readiness confirmed – Test results validate system integration for upcoming actuated TVC test series l Design optimization insights – Failure mode analysis generated actionable improvements for cooling architecture, injector design, thrust structures, and engine reusability At NordSpace, we push limits. Canada needs to get to orbit with sovereign light-lift launch by 2028 and medium-lift launch by the early 2030s. The only way this is possible is through extreme levels of testing, manufacturing, and investment. Our mission to build a Canadian end-to-end space missions capability will change the shape of our nation both on Earth and in space. If you would like to join our mission, please apply for a role at NordSpace via the Careers page on our website, and join us at the Canadian Space Launch Conference on May 5th, in Ottawa. National Defence Defence Research and Development Canada NSERC / CRSNG Canadian Space Agency Transport Canada

Last week, we pushed our Hadfield MK IV engine and Darkhorse engine test cell to their limits ahead of our upcoming thrust vector control (TVC) and orbital engine test campaigns. It was thrilling to see this controlled test go sideways — literally! Orbital launch vehicles operate within narrow design margins and constrained safety factors, where excess mass in any subsystem directly impacts payload capacity or mission viability. Destructive and limit testing enable us to validate optimal mass-performance trade-offs across propulsion, pressure systems, and primary structures. Key outcomes from this test include: ✅ Structural margins validated – Darkhorse demonstrated stable operation under full thrust loads at gimbal angles exceeding design specifications ✅ Thermal performance characterized – Extended burn duration at off-nominal mixture ratios provided empirical data on regenerative cooling degradation modes and injector thermal limits ✅ Fault tolerance demonstrated – Engine maintained functionality despite progressive damage, validating robustness for anomalous flight conditions ✅ TVC readiness confirmed – Test results validate system integration for upcoming actuated TVC test series l Design optimization insights – Failure mode analysis generated actionable improvements for cooling architecture, injector design, thrust structures, and engine reusability At NordSpace, we push limits. Canada needs to get to orbit with sovereign light-lift launch by 2028 and medium-lift launch by the early 2030s. The only way this is possible is through extreme levels of testing, manufacturing, and investment. Our mission to build a Canadian end-to-end space missions capability will change the shape of our nation both on Earth and in space. If you would like to join our mission, please apply for a role at NordSpace via the Careers page on our website, and join us at the Canadian Space Launch Conference on May 5th, in Ottawa. National Defence Defence Research and Development Canada NSERC / CRSNG Canadian Space Agency Transport Canada

NordSpace 🇨🇦

11,704 views • 4 months ago

Terran R moved closer to flight readiness in April with key integration, test, and launch infrastructure milestones. 🏗️ Build: Stage two integration advanced with avionics, harnesses, valves, and raceways installed. All first stage Aeon R engines for flight one have been manufactured, assembled, and shipped. 🔥 Test: Teams began software run-for-record testing on the completed stage two HITL build, while Aeon V reached key service life milestones during full-duration mission duty cycles. 🌴 Launch: At LC-16, the water tower and lightning protection systems rose as launch site activation work continued across the LOX farm, water systems, and more.

Terran R moved closer to flight readiness in April with key integration, test, and launch infrastructure milestones. 🏗️ Build: Stage two integration advanced with avionics, harnesses, valves, and raceways installed. All first stage Aeon R engines for flight one have been manufactured, assembled, and shipped. 🔥 Test: Teams began software run-for-record testing on the completed stage two HITL build, while Aeon V reached key service life milestones during full-duration mission duty cycles. 🌴 Launch: At LC-16, the water tower and lightning protection systems rose as launch site activation work continued across the LOX farm, water systems, and more.

Relativity Space

13,495 views • 1 month ago

Hyderabad-based #SkyrootAerospace has successfully completed 200-second duration Hot Fire test of it's indigenous Raman-2 engine.

Hyderabad-based #SkyrootAerospace has successfully completed 200-second duration Hot Fire test of it's indigenous Raman-2 engine.

News IADN

20,392 views • 1 year ago

Connecta T1.2 is the second test satellite in our satellite-IoT roadmap and is ready to launch with SpaceX Falcon 9 rocket in Transporter-6 Mission! We aim to have a test bench in orbit to verify and demonstrate our innovative IoT connectivity technology. #WeArePlanS #PlanS

Connecta T1.2 is the second test satellite in our satellite-IoT roadmap and is ready to launch with SpaceX Falcon 9 rocket in Transporter-6 Mission! We aim to have a test bench in orbit to verify and demonstrate our innovative IoT connectivity technology. #WeArePlanS #PlanS

Plan-S

59,844 views • 3 years ago

Launcher E-2 🚀 Engine Development– Pre-Burner Testing at NASA Stennis Space Center As we build up toward our integrated engine testing, we successfully designed, manufactured, and tested the pre-burner for our E-2 oxidizer-rich staged combustion engine.

Launcher E-2 🚀 Engine Development– Pre-Burner Testing at NASA Stennis Space Center As we build up toward our integrated engine testing, we successfully designed, manufactured, and tested the pre-burner for our E-2 oxidizer-rich staged combustion engine.

LΛUNCHER

18,536 views • 3 years ago

A louder rumble in Rocket City! We just completed our first BE-4 engine hotfire test at the historic Test Stand 4670 in Huntsville. We also continue to test BE-4 engines at our Texas facility. The BE-4 engine produces 550,000 pounds of thrust and is our most powerful engine yet.

A louder rumble in Rocket City! We just completed our first BE-4 engine hotfire test at the historic Test Stand 4670 in Huntsville. We also continue to test BE-4 engines at our Texas facility. The BE-4 engine produces 550,000 pounds of thrust and is our most powerful engine yet.

Blue Origin

230,846 views • 2 years ago

Haven Demo build and test are complete, and it is now undergoing final integration for launch. Meanwhile, we’re moving toward critical systems testing and continuing to build momentum on Haven-1 flight hardware. Haven-1’s primary structure qualification article has successfully completed its test campaign at our Mojave, CA facility, while the flight structure has been fully welded and is being prepared for pressure testing. Designed, manufactured, and tested in-house in the 🇺🇸.

Haven Demo build and test are complete, and it is now undergoing final integration for launch. Meanwhile, we’re moving toward critical systems testing and continuing to build momentum on Haven-1 flight hardware. Haven-1’s primary structure qualification article has successfully completed its test campaign at our Mojave, CA facility, while the flight structure has been fully welded and is being prepared for pressure testing. Designed, manufactured, and tested in-house in the 🇺🇸.

Vast

39,515 views • 9 months ago

From factory floor to launch site, the Terran R program is gaining serious momentum. Here’s the latest from May across design, build, test, and launch: 🖌️ Design: 17+ component-level Critical Design Reviews completed—rapidly releasing simpler parts like trays and manifolds ahead of structural assembly. ⚒️ Build: The LOX dome was successfully loaded onto the CFSW for its second weld, and the stage 2 transfer tube is now being welded—key steps toward completing the second stage tank. 🔥 Test: Aeon R engine qualification officially kicked off Stennis Space Center with 11+ hot fires in the books in May. 🚀Launch: Cape Canaveral’s LC-16 saw construction milestones—like the completion of the east flume wall in the diverter pit. Plus, we welcomed Robin Petitprez as SVP of Manufacturing & Supply Chain, strengthening our ability to industrialize Terran R at scale.

From factory floor to launch site, the Terran R program is gaining serious momentum. Here’s the latest from May across design, build, test, and launch: 🖌️ Design: 17+ component-level Critical Design Reviews completed—rapidly releasing simpler parts like trays and manifolds ahead of structural assembly. ⚒️ Build: The LOX dome was successfully loaded onto the CFSW for its second weld, and the stage 2 transfer tube is now being welded—key steps toward completing the second stage tank. 🔥 Test: Aeon R engine qualification officially kicked off Stennis Space Center with 11+ hot fires in the books in May. 🚀Launch: Cape Canaveral’s LC-16 saw construction milestones—like the completion of the east flume wall in the diverter pit. Plus, we welcomed Robin Petitprez as SVP of Manufacturing & Supply Chain, strengthening our ability to industrialize Terran R at scale.

Relativity Space

24,928 views • 1 year ago

E-2 Thrust Vector Control testing is underway! This test includes frequency sweeps starting at a maximum gimbal angle of ±7 degrees, using hardware from a previous engine revision. After completing additional testing on the component stand, the actuator will be deployed to the test site for its first gimballed test fire.

E-2 Thrust Vector Control testing is underway! This test includes frequency sweeps starting at a maximum gimbal angle of ±7 degrees, using hardware from a previous engine revision. After completing additional testing on the component stand, the actuator will be deployed to the test site for its first gimballed test fire.

LΛUNCHER

73,012 views • 2 months ago

Ship 37 successfully completed its in-space burn single-engine Static Fire and full-duration six-engine test on the modified Pad 1 (A), a major milestone toward Flight 10, currently targeting launch in mid-August. Full Review:

Ship 37 successfully completed its in-space burn single-engine Static Fire and full-duration six-engine test on the modified Pad 1 (A), a major milestone toward Flight 10, currently targeting launch in mid-August. Full Review:

NSF - NASASpaceflight.com

24,606 views • 11 months ago