ArianeGroups try on reusable space launchers finally with some progress but nearly 2 years behind schedule. #themis #prometheus #arianegroup #arianenext https://www.nasaspaceflight.com/2023/06/themis-prometheus-hot-fire-test/
Themis, Prometheus complete first hot-fire tests in France - NASASpaceFlight.com

Europe has just completed the first successful hot-fire test of its reusable Prometheus engine integrated…

NASASpaceFlight.com

Testing of the Prometheus engine has begun!
Here comes the new era for the European spaceflight! Prometheus will power #ArianeNEXT!

https://www.esa.int/Enabling_Support/Space_Transportation/First_ignition_for_ESA_s_low-cost_reusable_rocket_engine

First ignition for ESA’s low-cost, reusable rocket engine

With first ignition, ESA’s reusable, next-generation Prometheus rocket engine development project has taken a step toward hot fire testing. Ongoing work at prime contractor ArianeGroup’s facilities in Vernon, France is being carried out using the Themis reusable stage demonstrator as a test bed. The 100-ton thrust class Prometheus features extensive use of new materials and manufacturing techniques designed to reduce its cost to just a tenth of Ariane 5’s Vulcain 2, an upgraded version of which – Vulcain 2.1 – powers the core stage of Ariane 6.