center section
Center Section
the central portion of an airplane wing or tail assembly, joins the right and left halves of the wing or tail assembly. The center section of a wing may be mounted above the fuselage on struts and bracing wires (as in the An-2 biplane), may be fastened to the top of the fuselage (as in the An-10 and An-24 monoplanes), or may be attached to either the middle portion of the fuselage (as in the MiG-15 and the Iak-42) or the lower portion of the fuselage (as in the Tu-154).