Thrust reverser-integrated track beam and inner fixed structure

A panel (208) for a nacelle structure that surrounds a jet engine core includes a longitudinally extending semicircular center region (302), an upper bifurcation region (304), a lower bifurcation region (312), a hinge beam region (306) extending from the upper bifurcation region (304) and configured to receive an upper thrust reverser track guide, and a latch beam region (314) extending from the lower bifurcation region (312) and configured to receive a lower thrust reverser track guide. A bypass duct is formed in a space between the panel (208) and the nacelle structure. A hinge beam structure and latch beam structure are integrally formed with the panel (208). An inner skin layer (508) extends continuously across a bond panel surface facing the engine core and an outer skin layer (510) extends continuously across a bond panel surface facing the bypass duct, the inner and outer skin layers (508,510) extending across the center region (302), upper and lower bifurcation regions (304,312), hinge beam region (306), and latch beam region (306).