OK, ok.. I know I'm crazy but here goes. In order to use normal blades, for example those of the Walkera 52 micro heli, which is a 7 channel machine normally capable of doing 3D, one needs to set the angle of attack to somewhere between 5 to 10 degrees - which is not possible with standard blade holders.

The potential interest of this is to be able to use different blades and do trials with different head speeds / blade angles. On larger machines, acrobatics are done with higher head speeds.

Anyway, so I made a blade holder where I can manually adjust the rotor angle up to about 12 degrees - see photo for the first draft. I made a few mistakes when doing it so its a bit messy.

With a 7.4V battery on my turbo-Lama 3, it has 170-190g of lift, which is a bit lower than the Xtreme and aluminium blades. At 11.1V, we get ot 310 to 330g lift, again, just a bit below the alu or Xtreme blades.

The lama is very nice to fly with this - I tried with a mix of xtreme and symetrical blades, as I only did one blade holder. For now, the best performance is with a fairly steep angle, in the region of 10 degrees. My guess is that I did not get the head speed high enough for optimal angle, which should be in the region of 5 to 6 degrees.

More tests will follow when I FINALLY get my brushless motors!

Keep flying!

Hugues