What is the best way to get electric power to a kite? I need enough to power a small CMOS camera, and small motors that aim it. I also need to intermitantly power a larger motor that steers the kite. This is a BIG kite, about 2 meters by 4 meters, so it will be tethered by a rope, not a wimpy kid's kite string. My plan is to fly it over 1000 meters up (anyone know what the FAA limit is?), so the rope will need to be about 1500 meters long.
I don't want to use a separate wire, because it may get tangled, and will cause more wind resistance. So I am thinking of weaving a pair of wires into a nylon or kevlar rope. Anyone know if something like this is already available?
I could use a solar panel, but that will add weight, and won't work if it is cloudy or at night.
Another idea is to attach a mini-generator to a little propeller, and generate power from the wind. But my concern is that to provide enough power it will have to be too heavy.