Started the project today and kicked off with the blades. I am using a damaged set of propellers (Arplast Ecoprop) that were used on a gyrocopter that was involved in an accident. The one blade is reasonable, so I shall be modifying it in order to copy it in fibre glass. The hub is still okay.
The idea is to make the system in such a manner that I can make the prop blades turn in the hub, thus chnging the pitch. They were adjustable before anyway. It will work on a fly- weight governer system, that when the unit is stationary, they will be in full fine position and at speed they will advance to a coarser position by themselves. This will also trigger a switch, which in turn will excite the rotating field (electromagnets) similar to that used on a car alternator.
Any comments from the guys that have thought along these lines are welcome.