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US 2005/0238482 A1Published application
Segmented rotor blade trim tab
AssigneeThe Boeing Company
InventorsRobert Loftus, Michael McNulty, Keith Smith
Life of this patent
Estimating the term…
Abstract
A trim tab assembly for a helicopter rotor blade includes a plurality of metal panels that are secured to the trailing edge of a composite material helicopter blade. Each of the metal panels can be bent relative to the rotor blade to tune the aerodynamic properties of the rotor blade.
Claims29
1) An aircraft rotor comprising:
- a rotor blade having a length with opposite top and bottom surfaces, and opposite forward and rearward edges;
- and,
- at lease one trim tab on the rotor blade, the trim tab being a rigid panel having a length that extends along the rotor blade rearward edge, a forward edge that is secured to the rotor blade, and a rearward edge that is spaced outwardly from the rotor blade rearward edge.
9) An aircraft rotor comprising:
- a composite material rotor blade having a length with opposite top and bottom surfaces, and opposite forward and rearward edges;
- and,
- a metallic trim tab on the rotor blade, the trim tab being a rigid panel having a length that extends along the rotor blade length, a forward edge that is secured to the rotor blade, and a rearward edge that is spaced outwardly from the rotor blade rearward edge.
18) An aircraft rotor comprising:
- a rotor blade having a longitudinal length with opposite top and bottom surfaces, and laterally opposite forward and rearward edges;
- and,
- a plurality of trim tabs on the rotor blade, each of the trim tabs being a rigid panel having a longitudinal length that extends along a portion of the rotor blade length, a forward edge that is secured to the rotor blade and a laterally opposite rearward edge that is spaced outwardly from the rotor blade rearward edge, and the plurality of trim tabs being spatially arranged along the rotor blade length with there being a longitudinal spacing between adjacent trim tabs.
Dependencies are inferred from the claim text.