FIELD: aviation.
SUBSTANCE: invention relates to aircraft engineering. Manhole cover assembly in aircraft wing box includes manhole cover (1), clamp (3) installed in the groove of the lower panel of the wing box. Manhole cover (1) is made in the form of a three-layer structure consisting of outer skin (2) with a support flange, installed on the lower panel of the wing box from the inside of the manhole, inner skin (5) and honeycomb filler (4) arranged between inner skin (5) and outer skin (2). Clamp (3) and manhole cover (1) are tightened along the contour by bolted joints (6), the nuts of which are fixed in slots of outer skin (2) of manhole cover (1).
EFFECT: simplified design.
7 cl, 7 dwg
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