Isar Aerospace afbryder anden testflyvning med Spectrum-raket

Isar Aerospace afbrød onsdag aften den anden testflyvning af deres tyske Spectrum-bæreraket kort før opsendelsen fra Andøya Spaceport i Norge. Nedtællingen stoppede uventet få sekunder før den planlagte motortænding. De nøjagtige årsager er i første omgang uklare.

Missionen "Onward and Upward" var sat til at være den første opsendelse af Spectrum-raketten med flere små satellitter ombord. Forsøget fandt sted den 25. marts 2026 omkring kl. 21.21 lokal tid, men blev stoppet cirka 20 minutter efter at nedtællingen var slut. En live-udsendelse viste en båd, der var blevet detekteret i sikkerhedszonen omkring opsendelsesstedet ved kysten, hvilket muligvis bidrog til afbrydelsen. Isar Aerospace-chefingeniør Nikolaos Perakis udtalte i livestreamen, at alle raket-systemer var i orden, og at årsagen nu blev undersøgt. Beslutningen om afbrydelse kom sandsynligvis fra computeren, da administrerende direktør Daniel Metzler havde fortalt til Handelsblatt: "Ved opsendelsen i de sidste sekunder af nedtællingen tager raketten fuld kontrol over affyringsrampen." Inden opsendelsen sagde Metzler: "Vi ønsker at vise betydelige fremskridt." Starten var tidligere blevet udskudt flere gange på grund af dårligt vejr. Isar Aerospace, der er baseret i Ottobrunn nær München og grundlagt i 2018, har rejst over 500 millioner euro. Den to-trins, 28 meter høje Spectrum-raket med ti motorer er designet til at levere nyttelaster på op til 1000 kg til lavt jordomløb. Under den første test i marts 2025 lettede raketten fra Andøya, men styrtede i havet efter 30 sekunder. Det var den første orbitale raketopsendelse i det kontinentale Europa uden for Rusland. VC-investor Nico Rosberg kommenterede: "Selv hos SpaceX var afbrydelser af opsendelser en del af vejen til rummet. Raketten er klar, teknologien er der, det næste forsøg kommer." Tidligere ESA-chef Jan Wörner understregede vigtigheden af europæisk suverænitet inden for rumfart.

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