My granddaughter's other family had an uncle that had won two lotteries, he had more money than cents and was into all kinds of R/C aircraft including a $5K helicopter that had a rotor spread of over six feet. He had one of the first private drones I had ever seen or even at that point heard about, this must have been close to fifteen years ago. It had the four-rotor system and had a remote-controlled camera. He flew it all around the campsite we had all descended on, taking pictures of the area. When he got it back to camp, he downloaded the footage and entertained us all with the film. It was pretty amazing to me at the time, but I never had much interest in R/C stuff then or today. My son got interested and I supported his financial needs and was crew chief for his vehicles, keeping them running, those things were expensive then. Titanium tie rods and miniature oil filled shock absorbers.