Airfoil assembly

An airfoil assembly for an engine, the airfoil assembly comprising:

• an airfoil body comprising an outer wall bounding an interior, the outer wall extending between a leading edge and a trailing edge in a chordwise direction, and between a root and a tip in a spanwise direction;
• a trunnion defining a socket, the socket having an opening formed along a top surface;
• a spar extending from the interior of the airfoil body and through the opening into the socket, the spar having a spar centerline and a flared section terminating at a distal end within the socket, the flared section being formed by a plurality of composite plies comprising:
• a radially innermost ply having a respective centerline;
• and
• a radially outermost ply having a respective centerline;
• wherein the respective centerline of the radially innermost ply and the respective centerline of the radially outermost ply along the flared section are linear.