Published On: February 7, 2024

Spectrum as Use Case for SAFEST

Spectrum is a two-stage launch vehicle specifically designed for small satellites and satellite constellation deployment. Its development combines proven technologies with modern manufacturing methods to ensure high reliability and enable fast-paced, flexible and cost-effective mission integration and service delivery. Payload capabilities of up to 1,000kg to low-earth orbit and a multi-ignition second stage engine enable flexible access to space for satellite systems.

Isar Aerospace’s engineering follows a purely data driven approach. Design decisions are based on system-level performance. This is how the company achieves highest cost efficiencies allowing to offer competitive prices to its clients. In terms of propulsion, Spectrum uses liquid oxygen and propane, offering high-performing, clean propulsion. These propellants offer the highest density-specific impulse of all carbon-based fuels, triggering Spectrum’s performance.

Credits: ISAR Aerospace

In addition, Isar Aerospace is the only company in the European market that holds the entire value chain in-house, from design software and design know-how to production and test facilities. This high vertical integration enables cost-efficient pricing and a high degree of technological independence and enables the company to respond to its client’s needs or requirement changes in the most flexible way.

Spectrum plays a key role in the SAFEST project as Use Case for the AFTS under development. With SAFEST a first step towards the means of tracking the launch vehicle for flight safety purposes and automation of the flight safety decision and termination process are addressed. It addresses the needs to:

  • Provide reliable, high integrity, low latency launcher positional data to enable timely flight safety or termination decisions to be made based on a deterministic set of flight termination rules;
  • Reduce the high cost of providing and operating large independent ground based tracking systems;
  • Establish a safe path for Isar Aerospace to migrate progressively to a fully autonomous flight termination mode of operation in the future.


About Isar Aerospace

Isar Aerospace, based in Ottobrunn/Munich, develops and builds launch vehicles for transporting small and medium-sized satellites as well as satellite constellations into Earth’s orbit. The company was founded in 2018 as a spin-off of Technical University Munich. Since then, it has grown to more than 400 employees from more than 40 nations with many years of hands-on rocket know-how and experience within other high-tech industries.

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