What is SORA?

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    SORA (Specific Operations Risk Assessment) is a Europe-wide recognized procedure that allows you to assess the risks of your drone flights in the specific category. It was developed by JARUS (Joint Authorities for Rulemaking on Unmanned Systems) to implement complex UAV operations safely and in compliance with regulations.

    When do you need a SORA risk assessment?

    You need a SORA if your drone flight does not fall into the open category or if no predefined risk assessment (PDRA) is applicable. Typical use cases are:

    • Flights beyond visual line of sight (BVLOS)
    • Missions with larger drones over people or in built-up areas
    • Drones with a take-off weight of over 25 kg
    • Operations near airports or critical infrastructure

    In Germany, SORA is mandatory in accordance with Article 11 of EU Regulation 2019/947 if you are flying in the special category.

    How SORA works in 10 steps

    SORA consists of ten systematic steps that you can use to plan your drone flight safely and transparently:

    1. Operational concept (ConOps): Describe how, where, and with which drone you want to fly.
    2. Ground Risk Class (GRC): Determine the risk to people on the ground.
    3. Ground risk mitigation: Implement measures such as safety zones or parachutes.
    4. Air risk class (ARC): Estimate the risk of collision with other aircraft.
    5. Air risk mitigation: Use technology such as "detect and avoid" systems.
    6. Tactical mitigation (TMPR): Respond flexibly to short-term risks during the mission.
    7. SAIL value: Calculate the required safety level based on GRC and ARC.
    8. Operational safety objectives (OSOs): Meet safety requirements depending on the risk level.
    9. Analysis of adjacent areas: Protect adjacent zones and people as well.
    10. Operational documentation: Document everything in a way that is traceable for the authorities.

    Tips on how to successfully implement SORA

    • Start early: The earlier you start planning, the better.
    • Use templates: There are helpful tools and templates for SORA.
    • Get support: Professional help is useful for complex operations.
    • Stay up to date: Keep an eye out for new regulations and updates to the SORA method.

    Conclusion

    The SORA risk assessment helps you plan drone flights in the special category safely and in compliance with the law. With this structured approach, you can identify potential hazards early on and take targeted protective measures. This ensures that you fly safely and in accordance with EU regulations.

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