My DJI Spark (entry level) has some sort of altimeter, it stops climbing at 400’ but it does look like I can override it (never needed to).
All flights within controlled airspace must be submitted and approved through the FAA.
In an airplane the local barometric pressure must be dialed into the altimeter or the altimeter will not read correctly. I don’t do this with my drone, I’m guessing drones use a different technology to determine altitude??? Is it possible a drone can be 20ft off of actual altitude?
Both helicopters and drones can fly at 400 feet… Seems like this sort of thing is bound to happen? I’m guessing a helicopter travelling that fast might be going up and down a few feet rather than bullseyed at exactly 400? Alternatively, if the drone operator has similar software as the Spark, I don’t understand why the operator would take the steps to override the software for only 20-40 more feet???
(Just realized minimums for helicopters and planes is 500 feet)