Fuselage longeron for an aircraft and a central wing box with such a longeron

摘要

The longeron has peripheral zones, a central zone (c) and a recess (5) in the central zone, where the recess has an oblong form. The peripheral zones are constituted of an upper zone (z1) near an upper skin panel, a lower zone (z2) near a lower skin panel (I), and two lateral zones (z3) near wing longerons. The peripheral zones reduce normal forces conveyed by the wing longerons. An independent claim is also included for a central wing box comprising a fuselage longeron.