| 摘要 |
A foldable wing for hang glider and ultra-light aircraft includes two spars (L) acting as leading edge of the wing and hinged so as to open and close compass-like at a prow hinge (P), each spar being made up of a distal portion (LP) and a proximal portion (LG) telescopically fitted one into the other and provided in the vicinity of the insertion area with respective collars (CG, CP) suitable to make up a joint (S) having a hinge axis (X) substantially perpendicular to the axis of the spar so as to allow the lengthwise folding thereof. |
