ArianeGroup has successfully completed the initial mechanical integration of Themis, the European reusable launcher first stage demonstrator, at its Les Mureaux facility in France.
Standing 28 meters tall, the prototype comprises the Multi-Engine Bay (MEB), tanks, the Flight Control Bay (FCB), and the upper segment that completes the stage structure.
The Themis demonstrator will be powered by Prometheus, a new-generation, throttleable cryogenic engine also developed by ArianeGroup.
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