Launcher, a Vast Space company, is continuing to test the thrust chamber assembly for its E-2 engine at NASA Stennis, the nation’s largest propulsion test site. The test campaign is underway in the E Test Complex, which offers aerospace companies unique capabilities and [1/2]

The E-2 team continues Thrust Chamber Assembly testing at the E Complex at Stennis Space Center. Fully integrated engine test soon. 🔜🚀

An E-2 Thrust Chamber Assembly 10 second test in 4x slow motion from September 12, 2023 at Stennis Space Center. TCA testing continues as we prepare for a fully integrated engine test.

Check out the first fully integrated E-2 engine being installed at Stennis Space Center in preparation for our upcoming full engine test campaign later this year. Who's just as excited as we are? ✋

The first fully integrated E-2 engine roars to life for the first time at the historic Stennis Space Center on November 16, 2023. This test proved out the engine bootstrap startup transient. The team will continue to work towards long duration testing at nominal parameters in the

Launcher completes first E-2 engine hot fire on E-1 Test Stand at NASA Stennis.

E-2’s first 90-second test fire was a success! It performed at 55% power with a low conservative 1.6 mixture ratio as planned. The hardware appears in perfect condition ready for more tests. This is an exceptional result for a first test article (E-2 SN1). The test was also a key

Congratulations to the LΛUNCHER team on a successful E-2 Engine hot fire! NASA and Syncom Space Services team members are proud to be part of testing new engines on the E-1 Test Stand. They put in many hours to help Launcher reach its milestone. Kudos to the integrated team!

E-2 hit some major milestones this year — January — August: The preburner test campaign included 36 pre burner tests totaling 320 seconds. March — September: The thrust chamber assembly test campaign included 36 TCA tests totaling 281 seconds. November: The full engine

Some more shots of LΛUNCHER (Vast) E-2 engine testing yesterday at NASA Stennis

Nominal E-2 thrust and performance achieved. Have you ever seen a blue plume on a kerosene/lox rocket engine 💎💎💎? More to come including the full test video.

Preview: Short duration test of our E-2 22k lbf (10 tf) ORSC LOX/Kerosene liquid 🚀 engine. Nominal pressure (100 bar) and mixture ratio (2.7). Recorded this week at Stennis Space Center

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.

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

Launcher E-2 liquid rocket engine, 200-second test fire recorded Friday, April 12, 2024 at Stennis Space Center - Youtube version in 4K: youtube.com/watch?v=mzX8nT…

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

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

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.

This is what 99%+ combustion efficiency looks like for LOX/Kerosene.   Thanks to LOX cooling, E-2 doesn't require chamber film cooling.  Paired with a highly efficient injector, combustion efficiency and specific impulse are maximized, boosting payload capacity and unlocking