you said > For decades, western aerodynamic texts have mathematically shown that the tail rotor wastes 8 - 10% of the power. Recently, Kamov has explained to the west that the tail rotor wastes approximately 15% of the power. In addition, the latest aerodynamic text (year 2000), by Leishman (University of Maryland) concurs with Kamov's position. If a craft's gross weight to empty weight is 2:1, then the above constitutes a 30% difference in payload. That is significant!
if the tail rotor uses 30% of the total power, im sure a extra main rotor blade is going to use an awful lot more. double the drag, double the MR weight and double the power to turn them, double gearbox and rigging complexity and weight.
doesnt sound like a power saving to me
