To resist horizontal shear strain from possibly drag or engine thrust, the wing will have to also variety a stiff cantilever from the horizontal plane. One-spar style will often be equipped using a next more compact drag-spar nearer the trailing edge, braced to the primary spar through supplemental

For this reason primary reinforcement is delivered for the higher fiber in the concrete beam, as there is substantial tensile stress as demonstrated in Figure-4. For this beam, you need a back span or mounted aid and inspection for the uplift from the much help. The bending instant of a cantil

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