My airport has active jump operations... The divers are a threat to
aircraft, buildings, vehicles, and people on the ground... Their
operation is purely a pain in the butt... They cause planes to have to
break off and circle to avoid them.. The last encounter I had, 3
airplanes had to circle for just shy of 20 minutes while the jump plane
dropped students at two different altitudes, who immediately popped
their chutes and leisurely floated down..
We just recently had a jumper out of control land on top of one of the
hangars then slide off the roof hitting a car and breaking his leg...
While we don't have tiedown airplanes on our field that car could have
been my plane sitting on the ramp...
The jump pilot is a relatively nice guy, but his habits are a pain...
He makes one cryptic announcement on unicom a few minutes before the
jumpers leap then right as they leap, and if you immediately call him
back to query as to exactly where they are he won't answer... When I
confronted him on this he says he is too busy with configuring the
plane, talking to ATC (13 miles away on another frequency, and keeping
the jumpers in sight as he descends to answer the unicom calls... In
addition the two calls he does make on unicom are easily missed (and
usually are) in the unicom chatter on a busy weekend and the meat bombs
appear out of no where.....
In a sane world jump operations would be reserved to a jump field...

denny