The High Aspect nasaparawing NPW-PHA

The stability of the parallel C-Bridle on the NPW5-P gave me the idea to change the layout of the NPW and build a High Aspect Parawing.
This is how the NPW-PHA looks:

This is the NPW-PHA basic lay-out:
NPW-PHA lay out (25K)
What I did was taking the parawing basic plan and I made the wing tips wider till i had a surface of 3sqm for a body length of 1280mm (2sqm surface).
Notice the extra darts between bridle B1 and B2 these are left overs from the NPW5-P. First the kite didn't have the darts on the wing tips (left side of the drawing). It flew but the wing tips and panels E and F were flapping all the time.
The kite flew anyway this may be proof for the enhanced stability and rigidity of the parallel bridle.
Then after trying a lot of changes in the bridling, I took a rope and tied the wingtip together at the B5 bridle, result: No more flapping.
next step was to cut of the tips at B5 and ad a dart D
Test have shown that dart D is to big, the window of the kite was bigger with the flapping tips than with the tips cut of.
Perhaps when I reduce the dart from 60°to 70 or 90° it will regain its window.

PIC_161 JPG (76K)
Bridle:

This is the video with the new bridle:
temporary out
The bridle settings are in the excel
Download the plans and bridle lengths here

advantages:
very rigid
Holds its form very well
will remain flying with one half flapping around.

disadvantages:
Small window


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