Amorim Cork Provides Thermal Shielding for ESA's DRACO Mission
Cork-based material protects critical reentry data during spacecraft destruction in Earth's atmosphere.
1Mission Objectives and Design
The European Space Agency's DRACO mission, or Destructive Reentry Assessment Container Object, aims to study how satellites disintegrate during atmospheric reentry. Scheduled for a 2027 launch, the spacecraft will intentionally break apart while recording the process. This data is vital for creating safer, more sustainable spacecraft designs that minimize orbital debris risks.
2The Role of P50
At the core of the mission is a 40 cm survival capsule designed to protect and transmit scientific data. Amorim Cork Solutions provides its P50 material, a lightweight, cork-based ablative thermal protection system. This shield ensures the capsule survives the intense thermal and mechanical stresses encountered during the spacecraft's final atmospheric descent.
3Collaborative Engineering History
The selection of P50 follows a 15-year collaboration between Amorim and the von Karman Institute for Fluid Dynamics. The institute is responsible for the capsule's aerothermodynamics and thermal protection validation. This partnership previously utilized the same cork-based material for the QARMAN mission, which also focused on gathering data during atmospheric reentry events.
4Experimental Validation Process
Before the full-scale mission, the thermal protection system underwent rigorous testing at VKI facilities. Engineers used a half-scale version of the capsule, exposing it to plasma flows to simulate the extreme aerothermal environment of reentry. These tests confirmed the material's robustness, insulating properties, and predictable performance under high-stress aerospace conditions.
5Data Collection and Transmission
During the breakup, approximately 200 sensors and four cameras will document the structural failure of the spacecraft. This information is processed onboard, with the most critical data transferred to the protected capsule. The capsule must maintain its integrity to ensure this valuable information reaches researchers on the ground after the reentry.
6Advancing Design for Demise
The findings from DRACO will directly support the European Space Agency's Design for Demise initiative. This approach focuses on engineering spacecraft to break up more completely upon reentry, thereby reducing the danger posed by surviving debris. Improving these reentry models is a fundamental step toward achieving safer operations in Earth's orbital environment.
7Zero Debris Strategy
This mission aligns with the broader ESA Zero Debris approach, which targets a significant reduction in orbital debris by 2030. By understanding the physics of spacecraft destruction, the agency hopes to mitigate risks in both Earth and lunar orbits. DRACO serves as a practical testbed for these ambitious sustainability and safety goals.
8Natural Materials in Space
Amorim's contribution highlights the potential of natural, cork-based materials in extreme aerospace environments. By combining cork's inherent thermal properties with advanced engineering, the material offers a viable commercial solution for thermal protection. This mission demonstrates that sustainable, bio-based materials can effectively meet the rigorous demands of modern space exploration and research.
Original article: SpaceNews — Amorim Cork Provides Thermal Shielding for ESA's DRACO Mission