Can I reduce my SAIL level?
Yes. Both GRC and ARC can be reduced through mitigations - operational restrictions, sheltering credit, ground observers, parachute systems, electronic conspicuity, and ATC coordination, among others.
The level of reduction depends on the robustness at which each mitigation is evidenced.
For more details on SAIL levels, read our in-depth guide.
Related Questions
Is a SAIL level the same as an approval?
No, it is not.
What is the difference between Ground Risk Class (GRC) and Air Risk Class (ARC)?
GRC (Ground Risk Class) measures the potential consequence of a UAS impact on people on the ground. ARC (Air Risk Class) measures the likelihood of an encounter with aircraft.
What does robustness mean in the context of UK SORA?
Robustness combines the safety gain provided by a mitigation with the level of assurance and integrity that the safety gain has actually been achieved.