B64C27/22—Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft
B64C27/30—Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft with provision for reducing drag of inoperative rotor
Rotor arriere de giravion, giravion equipe d'un tel rotor arriere et procede d'equilibrage statique et/ou dynamique d'un rotor arriere de giravion
Procede et dispositif ameliorant le fonctionnement des turbines eoliennes verticales a portance, par commande passive de l'incidence des ailes a amplitude degressive