A tiltrotor aircraft includes a fuselage, a wing member extending from the fuselage, an engine disposed relative to the wing member, a rotor hub assembly mechanically coupled to the engine and a plurality of proprotor blade assemblies rotatably mounted to the rotor hub assembly and operable for beamwise folding relative thereto. The proprotor blade assemblies each including a spar and a sheath extending spanwise along a leading edge of the spar. The spar has a root section, a main section and a tip section. The spar has a generally oval cross section at radial stations along the main section of the spar with the root section of the spar forming an integral tang assembly operable for coupling the spar to the rotor hub assembly.
Folding proprotor blade assembly having integral tang assembly
29.05.2018
Patent
Elektronische Ressource
Englisch
IPC: | B64C AEROPLANES , Flugzeuge |
FOLDING PROPROTOR BLADE ASSEMBLY HAVING INTEGRAL TANG ASSEMBLY
Europäisches Patentamt | 2018
|Folding Proprotor Blade Assembly having Integral Tang Assembly
Europäisches Patentamt | 2017
|