If you are reading this and are from Canada, you know how frustrating the drones regulations are, for those how don't know, google it. One of the thing that is the most frustrating is the 9 km rule : You can't fly your drone within 9 km of an airport. I live in a small city with an airport at around 3 km of the city. There is maybe around 2 airplanes that will land there per week, maybe less. I was curious, does someone know at which height an airplane will be at 3 km of an airport when landing? I am aware that it is probably well higher then the 90 m high limit for drones. Also, I am thinking of medium-small airplanes, no big commercial airplanes.