| 摘要 |
A helicopter blade having a connecting device made of composite synthetic material for connecting it to the hub of a rotor via a spherical joint comprising a rod housed inside a tubular portion of the connecting device; the rod being connected to the tubular portion by two diametrical through bolts offset along the rod, and the connecting device comprising, for each of the four holes engaged by the aforementioned bolts, a substantially axial strap of composite material looped about the respective hole.
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