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It thought this would be of interest. Not sure how the 500 foot below cloud level rule applies, though. My guess is that the drone is well below the 500 foot limit. So that's probably not a problem. Anyway, you can't get this picture from a stepladder. It takes a drone. Stan https://www.washingtonpost.com/weather/2019/04/11/thunderstorms-kicked-wall-pollen-into-air-drone-captured-these-images-yellow-haze/?utm_term=.5f17251c44d4&wpisrc=nl_most&wpmm=1
If drone pilots are thinking about flying their quadcopters during the spring while pollen is everywhere, they may wish to reconsider. Here is the potential problem. When pollen coats the grassy fields where drones take off and land, prop wash is going to be blown everywhere. The electonic board that is the "brains" of the drone emits a small electromagnetic charge. Pollen grains, though very tiny, carry a negative charge. Now, consider the following analogy: In an automotive production line where the metal body is carried into the enclosed paint booth, the body will be made to carry a positive electromagnetic charge. To make the paint particles evenly cover the car body, the paint is negatively charged. Get the picture? Even though pollen may seem innocuous, the particles will be attracted to the electronics on the computer board. Can a pilot imagine the havoc created when these tiny, tiny grains interfere with functions designed to "communicate" with the transmitter? I see one significant potential problem: an interesting communication drop-out that turns into a fly away. Now, some of the more experienced pilots may say that Jim, the New Pilot, is way, way out in "left field" and doesn't know what he's talking about. Well, I've seen pollen "float over" to my ST10+ transmitter while I fly my drone. (This phenomenon occurred last week.) If pollen coats my LCD screen in the field, where is the other pollen hanging out? Something to consider. Jim, New Pilot