1/ Unable to meet label droplet spectrum
2/ Unable to meet label volume
3/ Pattern test data does not exist
4/ Illegal to operate beyond line of sight
5/ Liability insurance - who is responsible
6/ Inability to respond to contingency *
7/ We have all seen drones "go west", that is, depart uncommanded never to be seen again. Given the serious nature of the payload this is undesirable.
8/ High spec (read mil spec) high cost drones have been shown to #7
* Scenario 1 - A primary school field trip arrives in the incorrect or adjacent (downwind) field. Unseen by the drone operator 1.2 km away at the opposite end of the field.
The product being applied gives those sprayed directly 20 minutes to live (give or take) assuming a certain body weight and no predisposed sensitivity.
The drone does what it is programmed to do. This does not include recognition of potential hazards or avoidance of harm to others.
Does that pass the "any reasonable person" test?