Patent ID: 9415881
Filing Date: 2016-08-16
CPC Classification: B64D,G01P

Claim Text:
1. A method of calculating and displaying the true airspeed of a rotorcraft having at least one tail fin and at least one main rotor providing the rotorcraft essentially with its main lift, and a tail rotor providing the rotorcraft at least with guidance in yaw, the method comprising an operation of calculating the true airspeed of the rotorcraft from measurements supplied by at least one omnidirectional airspeed sensor and a display operation of displaying on a screen the true airspeed of the rotorcraft as deduced by an operation of calculating, wherein the operation of calculating the true airspeed of the rotorcraft is performed on the basis of measurements supplied by at least one omnidirectional airspeed sensor installed at the top of the tail fin, the at least one omnidirectional airspeed sensor thus being referred to as the “tail fin airspeed sensor”.