Patent ID: 8814102
Filing Date: 2014-08-26
Classification: G05D

Abstract:
1. A method for reducing the takeoff run of an aircraft (AC) provided with at least one steering joystick ( 14 ), with ailerons ( 6 G, 6 D) carried by the wings ( 2 G, 2 D) of said aircraft and with mobile aerodynamic rudder surfaces ( 7 , 9 G, 9 D), such a takeoff run during which said aircraft (AC) runs on a takeoff runway (RW) while accelerating and at the end of which the pilot of said aircraft communicates to said steering joystick ( 14 ) a tilted nose-up takeoff position (β D ) so that said mobile aerodynamic rudder surfaces ( 7 , 9 G, 9 D) cause said aircraft (AC) to take off, comprising the steps of: determining a nose-up tilting threshold (β controlling said ailerons ( establishing a velocity threshold (V establishing: a ground criterion (CS), being equal to 1 when said aircraft is on flight and being equal to 0 when said aircraft is on the ground; a velocity criterion (CV), being equal to 1 when the running velocity (V) of said aircraft is lower than said velocity threshold (V a steering joystick criterion, being equal to 1 if the nose-up tilting (β) of said joystick is higher than said tilting threshold (β3) and being equal to 0 if said nose-up tilting (β) is lower than said tilting threshold (β addressing each of the three criteria (CS, CV, Cβ) at a respective input of an OR logic gate or similar ( 18 ), having its outlet controlling said ailerons ( 6 G, 6 D): to said symmetric position (α to said symmetric position (α