Tried to fly the G3PO with 2" aerobalsa blades in stock configuration.
Was able to fly but not very well, resulting in a minor crash that only
cost a propellor. Returned to my stock blade. Will try to modify them
to a workable configuration.
My first attempt will be to reduce the chord to 1-3/4 and add the
tip weight found necessary on the working blades.
My current theory is that these blades are too low an aspect ratio
and the rotor RPM never came up to the speed I needed. It flew
at low speed but the control was poor and the rotor RPM varied
wildly.
The rotor lift equation L = (1/6)*(airdensity)*(area)*(tipvelocity)*(tipvelocity)
favors rpm over area.
These blades were 114% the are of the otherones, but if the rpm went down
by 6% (0.94 of the original tip velocity) the net lift is the same (.94*.94 * 1.14) = 1.00.
I think this is a net loss because the RPM was way lower than than 94% of
the original set. This leads me to experiement with the 1.5 inch blades as well.
more later