I think you are referring to the fact that all helicopters that have a tail rotor do lean to one side, depending on the way the main rotor is spinning. I mean full size helicopters too. This is due to the fact that the tail rotor resulting vector is not exactly in line with the center of gravity, and this produces an unwanted torque. European helicopters, like the Blade, have a clockwise main rotor, so they lean to the right. American helicopters lean to the left because the main rotor turns counter clockwise.