US 11,718,393 B2
Method and a system for providing a rotorcraft with assistance in taking off
Jacques Bellera, Aix en Provence (FR); and Nicolas Queiras, Les Pennes Mirabeau (FR)
Assigned to AIRBUS HELICOPTERS, Marignane (FR)
Filed by AIRBUS HELICOPTERS, Marignane (FR)
Filed on Nov. 13, 2020, as Appl. No. 17/97,463.
Claims priority of application No. 1913736 (FR), filed on Dec. 4, 2019.
Prior Publication US 2021/0171190 A1, Jun. 10, 2021
Int. Cl. B64C 27/00 (2006.01); B64C 27/57 (2006.01); B64C 13/04 (2006.01); B64C 9/00 (2006.01); B64C 25/36 (2006.01); B64C 25/52 (2006.01); B64C 27/06 (2006.01); B64C 27/08 (2023.01); B64C 27/82 (2006.01); G05D 1/08 (2006.01)
CPC B64C 27/57 (2013.01) [B64C 9/00 (2013.01); B64C 13/0421 (2018.01); B64C 25/36 (2013.01); B64C 25/52 (2013.01); B64C 27/06 (2013.01); B64C 27/08 (2013.01); B64C 27/82 (2013.01); G05D 1/0858 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A method of providing a rotorcraft with assistance in taking off, the rotorcraft including:
a fuselage;
at least one rotor provided with a plurality of blades and including at least one lift rotor;
control devices for controlling the pitches of the blades of the rotor(s); and
landing gear provided with at least three ground contact members connected to the fuselage;
wherein the method comprises the following steps:
measuring at least one piece of information relating to the forces to which each ground contact member is subjected during a landing phase;
measuring at least one piece of information relating to the pitches of the blades of the rotor(s) during the landing phase during which the rotorcraft lands; and
automatically controlling the pitches of the blades of the rotor(s) during the takeoff phase during which the rotorcraft takes off after the landing as a function of the measurements taken during the landing.