Patent ID: 11919633
Assignee: LEONARDO S.P.A.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 5:
6. The convertiplane according to claim 4, characterised in that said first portion (20) of each said wing (3) comprises a first movable control surface (26) selectively movable with respect to the relative said wing (3, 3′) between:
a related first raised operating position, with which a first lift value of the relative said wing (3) is associated;
a related second lowered operating position, with which a second lift value, distinct from said first value, of the relative said wing (3) is associated; and
a related third lowered operating position coincident with or separate from the related said second lowered operating position;
said control surfaces (26) being controllable so as to be arranged with one in the related first raised operating position and the other in the related said second lowered operating position in said aeroplane configuration to control the roll of said convertiplane (1) about said first axis (A);
said control surfaces (26) being both arranged in the respective third lowered operating positions in said helicopter configuration;
said second tip portion (21) being tiltable by an angle between 5 and 10 degrees about said third axis (E) so as to arrange the second axis (B) of the relative said rotor (5) tilted with respect to said first axis (A) and change the lift generated by said wing (3), when said convertiplane (1) is in said aeroplane configuration.