| 摘要 |
Airfoil canopy for paragliders made of non-porous cloth and comprised of a number of parallel primary air chambers (12) having upper surfaces (14), lower surfaces (16), open front ends (18), tail ends (20) and ribs (22). Secondary chambers (30) are provided within each primary chamber together with an opening (36) to the secondary chamber and a flap or curtain member (40) for blocking the back flow of air out of the secondary chamber in the event of air pressure loss in the primary chamber.
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