Parachute with inflation control and load distributing slider loops
Disclosed herein are parachute canopies and sliders for use with parachutes. The parachute canopies can include one or more deformable vent panels that can be used to control an inflation rate of the canopies based on an internal pressure within the canopies. The sliders can include strips that form through holes that have a width that distributes a radial load on suspension lines and allow for the use of lower weight, high modulus suspension lines.
1. A slider for use with a parachute, the slider comprising:
an annular body including an edge; and
a plurality of material strips attached to the annular body at or near the edge and extending radially outward from the edge, each of the plurality of material strips forming a through hole beyond the edge configured to slidably receive a suspension line of the parachute, wherein the plurality of material strips each have a width that, during a transition of the slider from a reefing state to a non-reefing state, distributes a radial load along a length of the suspension line.
2. The slider of claim 1 , wherein the plurality of material strips comprise an attachment portion and a securing portion, the through hole being in the securing portion, forming a substantially flat strap in an unloaded or natural position.
3. The slider of claim 2 , wherein in a loaded position, the securing portion rotates approximately 90 degrees about a longitudinal axis of the attachment portion.
4. The slider of claim 1 , wherein the plurality of material strips comprise a textile.
5. The slider of claim 4 , wherein the plurality of material strips are deformable to conform to a curvature of the suspension line.
6. The slider of claim 4 , wherein the textile comprises at least one of a poly-paraphenylene terephthalamide, an aromatic copolyimide, or combination thereof.
7. The slider of claim 1 , wherein each of the plurality of material strips comprise a single strip of material with a fold and a stitch placed at a distance from the fold to form the through hole.
8. The slider of claim 7 , wherein a top and a bottom tail of the single strip are secured to a top and a bottom side of the annular body to form an attachment portion.
9. An airplane comprising the slider of claim 1 .
10. A slider for use with a parachute, the slider comprising:
an annular body including an outer peripheral edge; and
a plurality of flexible loops formed from textile material strips and having a first end and a second end defining a length, the first end attached to the annular body at or near the outer peripheral edge and the second end being folded to form a through hole at a location beyond the outer peripheral edge,
wherein:
the through hole is configured to slidably receive a suspension line of the parachute, and
the strip of material has a width measured generally perpendicular to the length that, during disreefing, distributes a radial load along a length of the suspension line.