Nice craft. How long can you get it to spin without added force? this design is stable, but you still lose some energy to friction on the bolt. If you can eliminate the bolt on the z axis you will have a free standing friction-less flywheel. Try it with a hall effect sensor and solenoid. Use 2, ...
sites.google.com/site/gyromount/
I made a cheap gyro-mount as proof of concept. Total cost ~$50.00 I'll post a video of it soon.
I could do the same thing with some stock steel, a welder, and 2 motor/fly-wheels, for a lot less then $50,000.
This design really helps steady your shot down wind as...