Isar Aerospace

Spectrum

Active

Isar's two-stage orbital small-lift rocket: 28 meters tall, 2 meters in diameter, carbon-composite primary structure, propane and liquid oxygen, nine 75 kN Aquila gas-generator engines on the first stage and one 95 kN vacuum Aquila on the second stage with multi-ignition so it can circularize and deploy without a kick stage. Payload is 1,000 kg to low Earth orbit or 700 kg to sun-synchronous orbit. It is designed, built, and tested almost entirely in-house. Flight 1 failed; Flight 2 reached orbit from Andoya on September 5, 2026.

Latest update Sep 18, 2026

Spectrum

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Current status

One successful orbital flight (Onward and Upward, September 5, 2026). Vehicles 3-7 are in production. A third flight is expected soon, then at least four missions in 2027, with 2028 capacity already fully contracted. First flights from Spaceport Nova Scotia are targeted for 2028.

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Specifications4

Height / Diameter
28 m / 2 m
Payload
1,000 kg to LEO; 700 kg to SSO
Propulsion
9 x Aquila

(75 kN each) first stage + 1 x Aquila vacuum (95 kN), propane/LOX, gas-generator cycle

Flights
2 launched, 1 orbital success

Sept 5, 2026, ~500 km SSO

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Upcoming milestones5

Announced next steps from Isar Aerospace that mention Spectrum.

  1. Late 2026

    Fly Spectrum's third mission

    Vehicles 3-7 are already in production. Reuters reported on September 15 that Isar intends to complete its third flight soon after the September 5 orbital debut. FAZ, citing Metzler after the launch, said the third vehicle was in final preparation and that flights four through seven should go in 2027, all from Norway.

  2. 2026

    Launch Planet's German-built Pelican satellite

    TargetLate 2026 to mid-2027

    On July 2, 2026 Planet Labs Germany booked a next-generation Pelican Earth-observation satellite, to be assembled at Planet's new Berlin factory, on Spectrum from Andoya, billed as the first German-built satellite on a German-built rocket. The agreement aimed for a first launch within 12 months, with the vehicle 'currently scheduled as early as late 2026.' That late-2026 window is now tight against the just-completed qualification flight.

  3. 2027

    Run at least four Spectrum flights in 2027

    CCO Stella Guillen said on September 15 that Isar is scheduling at least four flights next year, the first year that is supposed to look like a commercial cadence rather than a test program. 2028 capacity is already fully contracted and described as a little more than double that 2027 plan. Meeting the demand the company says it is seeing would take nearly 200 Spectrum-class vehicles in 2028, a figure Guillen gave without a matching backlog number.

  4. 2027-2028

    Launch Astroscale's ADRAS-J2 debris-removal spacecraft

    Astroscale Japan selected Spectrum on September 1, 2026 to launch ADRAS-J2, the JAXA Commercial Removal of Debris Demonstration follow-on that will try to capture and deorbit a roughly 3-ton H-IIA upper stage. Target window is 2027-2028 from Andoya. It is Isar's second Astroscale-group booking after ELSA-M (Astroscale FY2028 or later). Spectrum's September 5 orbital debut is the flight heritage Astroscale had said it wanted first.

  1. Astroscale picks Isar Aerospace to launch ADRAS-J2

    Astroscale Japan said on September 1, 2026 it selected Isar Aerospace to launch its ADRAS-J2 debris-removal spacecraft on a Spectrum rocket from Andoya Spaceport in Norway, targeting a 2027-2028 window. ADRAS-J2, contracted under JAXA's Commercial Removal of Debris Demonstration program, will attempt to capture and deorbit the same derelict rocket upper stage that Astroscale's ADRAS-J spacecraft inspected up close before completing its mission earlier this year. It is Isar's second Astroscale launch contract, after being picked in March 2026 to fly the ELSA-M demonstration mission.

    Isar Aerospace AstroSpace.it + Astroscale

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