Method and device for determining air speed of a rotorcraft while hovering and/or flying at low speeds

摘要

The method involves determining airspeeds of a rotorcraft (2) based on measurement data (30) generated by airspeed-measurement instruments (31) during execution operation. Calculation of the estimated airspeeds is enabled through execution of a first polynomial law (9). The estimated airspeeds are adjusted through execution of a second polynomial law (10). A screen display is communicated with an execution calculator (3) during display operation for displaying airspeeds, where airspeeds consist of longitudinal airspeed (LASVx) and lateral airspeed (LASVy) of the rotorcraft. An independent claim is also included for a device for calculating and displaying airspeeds of a rotorcraft of an aircraft in low-speed evolutions.