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gnuPSF
Parafoil Simple Face
gnu Parafoil Simple Face
gnuPSF (gnu Parafoil Simple Face) is an easy rectangular single skin paraglider. Inspired in the small PSF, but modified in aspect ratio, panels , lines, and scaled to 18.75 m2. But a rectangular single skin wing, can work? In theory not much... But in practice, it looks like it might work... Do not expect that once the construction is finished this design fly properly. Corners of the leading edge, calage, and tension in trailing edge can cause problems in the first prototype.

Gnu19
Note: April 2017
Alberto (Veneto, Italy)
has started to build a special
version of this paraglider:
"Building the Gnu19"
Rev 02 (2017-04-18)


1. Technical specifications

Model

gnuPSF 19

Surface

18,75 m2

Flat span

7,50 m

Flat aspect ratio

3

Panels

19

Weight range

-

Anchors per rib

4

Risers

2

Certification

No

2. LEparagliding data Files, output files DXF Plans.

    Pre-processor: pre-data.txt geometry-out.txt

    LEparagliding: leparagliding.txt gnuPSF.txt lep-out.txt lines.txt

    All DXF plans, lep, and PDF here

    PDF plans and A4 templates here

New 2017-04-23: "tube version" uses one central tube. All files here (lep, dxf, pdf)

Notes:  1)  gnuPSF airfoil, now, is identical to the bhl2  airfoil, but a new profile can be studied.

2) Of course, this design requires only one template for the profiles, and one template for the panels :)

templates gnuPSF

3. LEparagliding DXF screen captures

pre
Fig. 1: Pre-processor

Planform
Fig. 2: Fully rectangular planform, aspect ratio = 3.0

3D
Fig. 3: 3D DXF model

gnuPSFtube
Fig. 4: "tube" version

index laboratori d'envol

LAB NOTE: Build a paraglider at home is a very complicated task , and requires many hours of work. Previous experience is required, and very inventive. As always remember that: The free flight implies risks that can only be known and they can be controled with a suitable formation on the part of a recognized school. Not test wings without knowing their functioning. The construction and test of experimental wings without certifying requires deep knowledge of what is being made.