What
@GadgetGuy is getting at is what should happen if you lose contact, the mission aborts for some reason, and is now subject to Failsafe RTH behavior?
This is a setting in the Safety section of DJI Fly settings.
This is also why such flying is currently prohibited. You are no longer aware of the danger the drone may present, nor are you in control of it.
Such a mission requires special planning, setup, and execution. At a bare minimum selecting a Home Point location easily reachable from the entire flight path within battery capacity that is guaranteed safe for the drone to fly to and land without operator connection and control. Then, set this HP immediately after takeoff and before starting the mission. Presumably the one-way mission is necessary because of insufficient battery to make it back.
Simply setting the RTH to hover is insufficient. Once signal is lost, you do not know where it may come down due to any number of issues.
Also, don't PLAN to be disconnected, then stand around having a few beers only to head to the landing spot at your leisure some time after the mission has completed. At a bare minimum you should have a driver and plan to follow the aircraft as best as possible, attempting to stay connected, meeting the aircraft at the destination.
Being disconnected from the aircraft should not be considered acceptable, ordinary operation. Flyaway and other anomalous behavior happens.
DJI drones are not built with all the redundancy and other hardware and software safety measures necessary for large area autonomous flight. As such, while executing a stored mission autonomously there is considerable safety risk to people and property should something go wrong, and simply hovering in place then landing at critical battery might actually increase that risk.
