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Spectrum rocket completes short-duration test flight
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Spectrum rocket completes short-duration test flight
by Erica Marchand
Paris, France (SPX) Apr 01, 2025

A key achievement for European commercial spaceflight has been achieved as Isar Aerospace's Spectrum rocket completes a brief but successful maiden test flight from Norway's Andoya Spaceport, ascending for 30 seconds and clearing the pad in a vital demonstration of its liftoff capabilities.

Spectrum, a two-stage launch vehicle developed by German company Isar Aerospace, stands 28 meters tall with a 2-meter diameter. Powered by ten engines, it is engineered to deliver payloads of up to 1000 kilograms into low Earth orbit.

This inaugural flight was a crucial step in validating the vehicle's launch systems and will provide engineers with performance data essential for refining the rocket ahead of its next test. The company will analyze telemetry and flight parameters to optimize Spectrum's future operations.

"Our first test flight met all our expectations, achieving a great success," said Isar Aerospace CEO Daniel Metzler. "We had a clean liftoff, 30 seconds of flight and even got to validate our flight termination System."

ESA Director General Josef Aschbacher praised the milestone, stating: "A test-flight is exactly that: a test to gather data, learn and improve. Everything Isar Aerospace hastoday is remarkable and they will have lots of data to analyse. I applaud the teams for getting this far and I am confident that we will see the next Spectrum on the launch pad ready for test-flight 2 liftoff soon."

ESA's Director for Space Transportation, Toni-Tolker Nielsen, added: "This test launch provides valuable data and is a crucial first step toward future milestones - to analyze, learn, and improve. I am sure ISAR Aerospace will return stronger with another launch soon."

Isar Aerospace builds Spectrum at its advanced production facilities in Germany, relying heavily on in-house manufacturing. Initially backed by ESA's Business Incubation Centre, the company has since received three rounds of ESA co-funding through the Boost! programme, designed to support commercial space transport ventures.

ESA's support will continue through the second Spectrum test flight and expansion efforts at Isar Aerospace's new headquarters in Vaterstetten, Germany.

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