The Cologne-based European Aviation Safety Agency
It seeks to tailor regulations to where the drone is flown, saying "flying the same drone over a city center or over the sea entails a completely different risk."
"Open" operations that don't require prior authorization include taking photos, infrastructure inspections and leisure activities where the drone is kept in sight.
Read more at: https://phys.org/news/2018-02-european-flight-safety-agency-issues.html#jCp
Social Plugin