Agricultural UAV

The operators probably have to eyeball the airspace over the
160 acres being photographed. [...]
They ought to be able to see full-scale aircraft entering the
airspace and command the UAV to descend or change
course to avoid the traffic.

How reliably can you eyeball 160 acres and see all aircraft in time to
descend or change course? How often have you not seen traffic called
out to you by ATC? How long does it take for you to find traffic in the
pattern when you come in to a new airport to land? Do you find it all?

The operators will not
want to have mid-airs any more than other pilots.

If the operator has a midair, he gets a reprimand. If a pilot has a
midair, he dies.

Jose
--
The monkey turns the crank and thinks he's making the music.
for Email, make the obvious change in the address.