Apparatus and methods for alleviating rotary aircraft downloads are
disclosed. In one embodiment, a rotary aircraft includes an airframe
assembly having a fuselage, at least one rotor assembly operatively
coupled to the airframe assembly and configured to provide a downwash
over at least a portion of the airframe assembly during operation of the
at least one rotor assembly, and at least one download alleviation strake
operatively coupled to the fuselage, each download alleviation strake
extending at least partially along a length of the fuselage and being
configured to reduce a downwash download during operation of the at least
one rotor assembly. In some embodiments, the airframe assembly includes
at least one fuel tank, and the at least one download alleviation strake
is coupled to the at least one fuel tank. The download alleviation strake
may be pivotably coupled to the at least one fuel tank.