(57) Abstract Objective Installation job of the stiffener and the inversion and surfacing prevention material is unnecessaryWith it becomes, number of articles only reduction can decrease installation man-hour cheaplyValue it designates that the vertical FRP make large-sized structure is offered as purposeru. Constitution Assistant of the corrugated condition which extends to lengthwise in fuselage 10It is strong, allotting as needed interval, multiple it forms section 14 just when alsoIn lower part of the above-mentioned fuselage 10 stabilizing in plane, installationru salient 15 is provided as one unit, the strength for the load is guaranteedWith ru, inverting after the installing and surfacing of structure at time of underground embeddingIt tried to prevent securely.
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