Airbus Helicopters

Onera (office National D'etudes Et De Recherches Aerospatiales)

Onera

Jean-Paul Pinacho

Paul Gerard Eglin

Remy Huot

Raphael Fukari

Itham Salah El Din

Jerome Gardes

Caroline Lienard

Philippe Gaulene

Rémy Huot

Raphaël Fukari

Jérôme Gardes

A hybrid type rotorcraft having a main rotor, at least two propulsion elements each mounted on respective half-wings arranged symmetrically on either side of an anteroposterior midplane XOZ, a horizontal stabilizer arranged in a rear zone of the rotorcraft on either side of the anteroposterior midplane XOZ, and two fins arranged respectively on either side of the anteroposterior midplane XOZ, each of the two fins comprising a respective left/right bottom fin airfoil arranged below the horizontal stabilizer and a respective left/right top fin airfoil arranged above the horizontal stabilizer.

Hybrid type rotorcraft having a horizontal stabilizer and two fins arranged on the horizontal stabilizer

A procedure and a device for the determination of current airspeeds [] of a rotorcraft [] in a stationary flight regime and/or at low speeds. A calculation system [] incorporates two pairs of polynomial calculation laws [] that are executable successively by pairs. A pair of first polynomial laws [] calculates estimated airspeeds [], consisting respectively of longitudinal and lateral airspeeds, and is constructed through multilinear regression based on parameters relating to simulated flight points [] defined by means of a flight simulator []. A pair of second polynomial laws [] calculates the current airspeeds based on the estimated airspeeds [], and is constructed through multilinear regression based on parameters relating to test-flight points defined by means of test flights [

Procedure and device for the determination of airspeeds of a rotorcraft in stationary flight and/or at low speeds

Growing community of inventors

Molleges, France

Jean-Paul Pinacho