2. ‌AIRCRAFT COMPOSITION AND STRUCTURE [image] Figure 2.66. [image] Figure 2.67. AIRFRAME Cadre Frame Caisson Central Wing (Spare) Box Aile En Porte A Faux Cantilever Wing Cisaillement Shear Stress Contrainte Normal Stress Couple, Cadre Ring Frame Déformation Strain Flexion Bending Flottement Flutter Lisse, Raidisseur Stringer, Stiffener Longeron Spar Nervure Rib