DJI recently issued a white paper expounding upon the relationship between the weight of drones and the risk posed by them, asserting that current FAA regulations are based on "poorly chosen data and deeply flawed assumptions."
The white paper proposes raising the 250-gram threshold that defines drones of the lowest risk to 2.2 kilograms. For reference, the DJI Phantom 4 Pro weight 1.39 kilograms and the Inspire 2 weighs 3.29 kilograms, making the proposed raise in the threshold somewhere above the standard consumer range. The original 250-gram threshold was developed in 2015 during the process of creating registration guidelines for drones. Any drone below this threshold was considered a sufficiently low risk to not warrant registration. Regarding this, however, DJI claims:
Using more accurate scientific inputs, DJI’s white paper concludes unmanned aircraft systems (UAS) up to 2.2 kilograms can be safely flown with the lowest risk.
[via Drone Life]