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US 2017/0283049 A1Published application
Differential pre-cone rotary wing arrangement and aircraft
AssigneeSikorsky Aircraft Corporation
InventorSteven D. Weiner
Life of this patent
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Abstract
A differential pre-cone rotary wing arrangement includes a first rotor assembly having a first set of rotor blades rotatable about an axis, the first set of rotor blades having a first pre-cone angle, and a second rotor assembly having a second set of rotor blades rotatable about the axis, the second set of rotor blades having a second pre-cone angle, the second pre-cone angle is different than the first pre-cone angle.
Claims13
A rotary wing arrangement comprising:
- a first rotor assembly having a first set of rotor blades rotatable about an axis, the first set of rotor blades having a first pre-cone angle measured between the blades of the first rotor assembly and a plane parallel to a blade tip path plane defined by the blades of the first rotor assembly;
- and
- a second rotor assembly having a second set of rotor blades rotatable about the axis, the second set of rotor blades having a second pre-cone angle measured between the blades of the second rotor assembly and a plane parallel to a blade tip path plane defined by the blades of the second rotor assembly, the second pre-cone angle being different than the first pre-cone angle.
Dependencies are inferred from the claim text.