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Rotational Test Run (Tail Rotor Blade)

Comparative Figures

Noise Level Reduction*

On average, noise development is reduced by 5 dbA in the near-field region (1-5 meters). From that results a perceived noise reduction up to 25 percent. (On the basis of the general determination, that a reduction by 10 dbA corresponds to halving the perceived noises.)

Power Saving*

The power input is reduced by 2.1 A, and thus up to 24 percent. In practice, this means higher efficiency with the same wing profile. Blade tip speed: approx. 206 m/sec

(*all figures refer to a rotational test run with a tail rotor blade)

Background