The blades work! Not that I ever doubted them :heehee:

The mass of the two blades when I made them was only 2 grams off - complete fluke that. The centre of mass however was quite a bit off. I spent a bit of time balancing them but they're by no means perfect. This caused huge vibrations.

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According to the frequency meter the rotor did over 800rpm at times - that means the tips of the blades were doing over 100mph! I need to be careful... next time I'm going to balance them properly and stiffen the tower up. Might have to use guy wires at full height.

I'll upload a video soon.