Aircraft structural component and a method of fabricating an aircraft structural component

A method of fabricating an aircraft structural component for an aircraft, the method comprising:

• providing a flange having a non-planar side;
• and
• providing a web comprising:
• a first end, which extends from the non-planar side of the flange;
• a second end, which is distal from the first end and from the non-planar side of the flange;
• and
• a non-planar shape that deviates from a plane, which is normal to the non-planar side of the flange and extends in a longitudinal direction of the aircraft structural component;
• wherein a deviation of the non-planar shape of the web from the plane increases with distance along the web in a direction from the first end to the second end, a magnitude of the deviation from the plane increasing as a function of distance along a height of the web, from the first end to the second end;
• wherein the deviation of the non-planar shape of the web from the plane extends over at least 10 cm of a length of the component;
• wherein the providing the web comprises use of a tool with a non-planar profile to impart the non-planar shape to the web when material to define the web is laid on the tool;
• wherein the non-planar profile of the tool is such that the material to define the web, when laid on the tool, defines at least one sine wave that has an amplitude and a wavelength;
• and
• wherein the wavelength is at least 20 centimeters (cm).