Most recent edit:
Tuesday November 05, 2013
* See legal note below.
Skydiving Canopies Pre-adapted for
It is a challenge to set and
douse an AWES wing aloft; for early launch in calm, and to furl in
increasing wind (or for low-drag pumping retract).
A common feature of parachutes is
a strong attachment point at the apex (conical canopy) or two points at
the topskin B-line center (square canopy). A pilot-chute attaches there,
and pulls the chute from the deployment-bag (a model for cascade launch).
Under formal analysis, this is in
principle a reversible operation. By slacking the risers and pulling the
chute into a pack (bag or sleeve), the volume of the wing is reduced to <
1/50 its inflated volume [SkySails 2013). The pack achieves very low lift
and drag coefficients compared to its max values.
The AWE Encampment has deployed a
mini-OL from a pack hung from the line a small pilot-kite. The launch
succeeded, with the pilot withdrawing. Next, we intend to show the full
cycle; a pop-and-douse-aloft-and-retract-back-into-the-bag operation,
first with a small kite, then with Taylor's old XXL skydiving canopy.
Sailboat racing spinnaker methods are a close similarity case to imitate.
Comment and development of this topic will be occurring here.
All, send notes, links, drawings, papers, videos, plans, safety-critical
findings, and photographs!
- Terms and aspects:
- cascade launching of wings in kite energy systems
- pumping retract
- packing wings
- OL :
OutLeaderô by Dave Culp
- Related links and concepts:
- Commentary is welcome:
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