LΛUNCHER(@launcher):Twenty successful engine starts, totaling 2033 seconds of cumulative run time, were completed on the latest workhorse E-2 engine sample. This breakthrough test campaign concluded with a rapid relight demonstration, validating capabilities essential for reusability. A brand-new engine sample has now been manufactured and is scheduled to begin testing early next week. E-2 continues to be pushed through its paces to ensure it will be fully prepared for future spaceflight missions, delivering high performance propulsion 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

2025.12.05 20:45

Twenty successful engine starts, totaling 2033 seconds of cumulative run time, were completed on the latest workhorse E-2 engine sample. This breakthrough test campaign concluded with a rapid relight demonstration, validating capabilities essential for reusability. A brand-new engine sample has now been manufactured and is scheduled to begin testing early next week. E-2 continues to be pushed through its paces to ensure it will be fully prepared for future spaceflight missions, delivering high performance propulsion 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