Drag sails are a cost-effective and reliable method for accelerating the deorbit of small satellites, especially CubeSats, at the end of their mission lifetime. This video showcases the deployment of the FINIX Engineering Qualification Model (EQM) drag sail following a rigorous vibration test.

Designed and developed by FINIX-1, a student team from the University of Athens, this lightweight, compact deployable sail is integrated into a CubeSat. The drag sail was subjected to vibration loads mimicking the harsh environment expected during launch, one of the most critical phases for any mechanism.

Captured at the ESA Academy's CubeSat Support Facility, this sped up video was recorded during the March 2025 test window of ESA’s Fly Your Satellite! Test Opportunities. This pilot programme offers student teams support with the preparation and execution of environmental testing of their student-designed and built hardware through dedicated access to the CubeSat Support Facility.

The video provides a detailed look at the deployment process, highlighting the technical prowess and innovative design of the drag sail. This testing phase marked a significant milestone for the team, offering valuable hands-on experience.

FINIX-1 student team project perfectly aligns with international efforts to safeguard space from debris. Earth's orbit is becoming increasingly congested with defunct satellites, spent rocket stages, and fragmented debris – all posing collision risks to operational missions. In line with ESA and ESA Academy’s vision, these brilliant students have taken a bold step in supporting a sustainable orbital environment through the development and testing of a CubeSat drag sail.

Read more: www.esa.int/Education/CubeSats_-_Fly_Your_Satellit…

Credits: European Space Agency (ESA)

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