Now the company is ready to move on to the next stage: avionics, and to do so, having established a valid and credible proposition, it was able to attract NASA JPL & SpaceX veterans Kevin Watson and Rich Petras.
Are all those propellant ports NPT? I'm estimating they're about 2" NPT. In the photo where it's still copper, they've got NPT to Quick-Clamp flanges (like these on McMaster-Carr).
Launcher’s first ever E-2 🚀 engine turbo pump hardware arrived. 3D printed in Inconel 718 on @Velo_3D machine by @Protolabs 🙏. Discharge pressure of 4,130 psi (285 bar) for oxidizer rich staged combustion. Design heritage licensed by Launcher and proven 70+ times to orbit.
Successful test of our E-2 🚀 engine igniter - an important milestone in preparation to our E-2 test campaign.
A challenging design as our GOX/Kerosene igniter nozzle reaches nearly 1,800F while traversing our liquid oxygen dome. This test proved that we could run the igniter for five seconds, while having 1,200psi liquid oxygen in the dome (behind this mockup injector plate shown)
We were happy to confirm during repeated tests that no oxygen/heat/pressure related explosion occurred.
Launcher E-2 3D printed copper alloy combustion chamber polishing done ✅. One step closer to its first test fire 🔥 🚀. Next step - shipping to @NASAStennis
Launcher E-2 liquid 🚀 engine thrust chamber assembly in position at @nasastennis. Getting ready for LN2 cold flow tomorrow morning. E-2 is the world’s largest single-part 3D printed combustion chamber.
ORSC but this first test campaign is pressure fed.
Launcher E-2 test stand activation and LN2 cold flow testing started today at @NASAStennis . We can’t wait for the 🔥version.
Launcher E-2 - 22.000-lbf thrust 3D printed liquid 🚀 engine (kerolox). Fully plumbed on its test stand at @nasastennis. Actual first stage nozzle size and expansion ratio. Test fire getting very close.
[...] They continue to share probably more than they should and have published the state-point diagram [...]
Launcher E-2 is born at @NASAStennis - More soon!
Photos by @johnkrausphotos of our first ever Launcher E-2 🚀 engine ignition (3 sec ‘burp’) at @NASAStennis yesterday. Great result, the hardware passed the test and is ready for test #2 next week.
In the next two weeks, we will build up duration and then replace the heat sink chamber used in this test with the actual world largest 3D printed single piece combustion chamber (with actual flight size nozzle).
Successful Launcher E-2 test #2 (2s burp). Next step: Replace the heat sink chamber with the 3D printed thrust chamber assembly and test. Stay tuned! 🚀🔥
This is exciting. Anyone know of any other printer copper chambers in testing before this?
A new photo by me for @launcher — The first test fire of the full E-2 thrust chamber assembly, with a flight-sized nozzle, conducted last month at NASA’s Stennis Space Center.Read + see more in @arstechnica’s feature:
Meet Launcher, the rocket engine builder with just eight employeesThe company is making progress, completing a series of component tests in October.by Eric Berger - Nov 9, 2020 2:40pm GMTMax Haot is not your typical rocket scientist, and Launcher is not your typical rocket company.