| Distance between the point where the UAV would touch the ground falling vertically and the position of those not involved + a margin of 50 metres |
| Distance between the point where the UAV would touch the ground falling vertically and the position of the persons not involved + a margin of 5 metres |
| Distance between the point where the UAV would touch the ground falling vertically and the position of persons not involved |
| None of the other answers is correct |
EN 