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Composite airfoil with rolled fiberglass reinforced leading edge

  • US 10,640,197 B1
  • Filed: 10/31/2017
  • Issued: 05/05/2020
  • Est. Priority Date: 10/31/2017
  • Status: Active Grant
First Claim
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1. A composite airfoil, comprising:

  • an outer skin comprising one or more layers of carbon fiber composite material, the outer skin defining an aerodynamic surface having a leading edge; and

    a reinforcement material comprising a roll of fiberglass reinforced fabric positioned behind the outer skin along at least a portion of the leading edge, wherein the roll of fiberglass reinforced fabric and the one or more layers of carbon fiber composite material are cured together to form the composite airfoil including a rotor blade, wherein the roll of fiberglass reinforced fabric has a varying thickness that defines the rotor blade varying in width along a longitudinal dimension of the rotor blade including a narrower section between two wider sections.

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