I'm probably over thinking this, and yes, it was an idea that popped into my head randomly, but I want my new drone to last as long as I can. I am a huge fan of planes and helicopters, as well as military equipment. I remember learning during Desert Storm all the issues the helicopters and Osprey's had with sand getting into the engines etc. This made me think of my drone. Is there a need to clean the motors, or anything else inside the drone, if there is, how the hell do you know what to use, how to clean, how often to clean or even get into opening it up to reach those parts.