Select intrinsic Ground Risk Class
| Intrinsic UAS Ground Risk Class | ||||||
|---|---|---|---|---|---|---|
| Maximum UA characteristic dimension | 1m / approx. 3 ft | 3 m / approx. 10 ft | 8 m / approx. 25 ft | 20 m / approx. 65 ft | 40 m / approx. 130 ft | |
| Maximum speed | 25 m/s | 35 m/s | 75 m/s | 120 m/s | 200 m/s | |
| Maximum iGRC population density (people/km²) | Controlled Ground Area | 1 | 1 | 2 | 3 | 3 |
| < 5 | 2 | 3 | 4 | 5 | 6 | |
| < 50 | 3 | 4 | 5 | 6 | 7 | |
| < 500 | 4 | 5 | 6 | 7 | 8 | |
| < 5,000 | 5 | 6 | 7 | 8 | 9 | |
| < 50,000 | 6 | 7 | 8 | 9 | 10 | |
| > 50,000 | 7 | 8 | Not part of SORA | |||
• A UA weighing less than or equal to 250 g and having a maximum speed less than or equal to 25 m/s is considered to have an iGRC of 1 regardless of population density.
• A UA expected to not penetrate a standard dwelling will get a -1 GRC reduction from the M1(A) sheltering mitigation when not overflying large open assemblies of people, see Annex B for additional details.
Select Ground Risk mitigations
| Mitigations for ground risk | Level of Robustness | ||||
|---|---|---|---|---|---|
| None | Low | Medium | High | ||
| M1(A) - Strategic mitigations - Sheltering | 0 | -1 | -2 | N/A | |
| M1(B) - Strategic mitigations - Operational restrictions | 0 | N/A | -1 | -2 | |
| M1(C) - Tactical mitigations - Ground observation | 0 | -1 | N/A | N/A | |
| M2 - Effects of UA impact dynamics are reduced | 0 | N/A | -1 | -2 | |
Final GRC: -
Select residual Air Risk Class
SAIL
| Final GRC | Residual ARC | |||
|---|---|---|---|---|
| a | b | c | d | |
| ≤2 | I | I | IV | VI |
| 3 | II | II | IV | VI |
| 4 | III | III | IV | VI |
| 5 | IV | IV | IV | VI |
| 6 | V | V | V | VI |
| 7 | VI | VI | VI | VI |
| >7 | Certified category | |||
SAIL: -