Rotorcraft blade, a rotorcraft rotor provided with said blade, and a method of fabricating said blade
AssigneeEurocopter
InventorsJean-Marie Parisy, Remi Metivier
Life of this patent
Estimating the term…
Abstract
A rotorcraft rotor blade (1) has a blade root (1′) and a free end opposite from the blade root (1′), the blade (1) being provided at least with a spar (2) laid flat on a suction-side face (3) and a pressure side-face (4) of the blade (1), the main spar (2) being secured to an attachment fitting (5) at the blade root (1′). The attachment fitting (5) then includes first and second horizontal fastener bushings (10, 20), the first and second fastener bushings (10, 20) being both perpendicular to the span of the blade (1) and substantially perpendicular to an elevation direction (Z) that is substantially parallel to gravity (W), the elevation direction (Z) being perpendicular to the span.
Claims15
A rotorcraft rotor blade (1) having a blade root (1′) and a free end remote from said blade root (1′), said blade (1) being at least provided with a main spar (2) laid flat on a suction-side face (3) and a pressure-side face (4) of the blade (1), said spar (2) being secured to an attachment fitting (5) at said blade root (1′), wherein said attachment fitting (5) comprises first and second horizontal fastener bushings (10, 20), said first and second fastener bushings (10, 20) being firstly perpendicular to the span of the blade (1) and secondly substantially perpendicular to an elevation direction (Z), said elevation direction being perpendicular to said span and to the plane of rotation of the blade when said blade is rotated by said rotor.
Dependencies are inferred from the claim text.