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gnu-A2
gnu-A2, or gnu "A2", is the new Laboratori paraglider project started September 2016. Of course, is the successor of the gnu-A.
Wing using the same geometry that gnu-A, but with the following changes:

- 28 cells (instead of 27)
- Internal structure of diagonal ribs "type-3", this simplifies the lines.
- Miribs in leading edge
- Simplified brakes
- 4 risers (instead of 3), for more groundhandling control
- Planned sizes 27/25/23/21 m2, starting whith the 25 m2 "M" size

Model
gnu-A2
Flat area
25.00 m2
Flat span
10.37 m
Flat A/R
4.30
Projected area
21.81 m2
Projected span
8.51 m
Flat A/R
3.32
Flattening
0.13
Airfoil
gnu-A 20%
Line lenght
245.83 m
Lines
3(A)+4(B)+3(C)+2(D)
Risers
4

Recommended materials:

Extrados 35 gr/m2
Intrados 35 gr/m2
Ribs and diagonals 35 gr/m2 hard finish
Lower lines: Sheated dyneema > 250 Kg
Upper lines: Sheated dyneema > 160 Kg
Main brake line: Sheated dynema 275 Kg
Nylon rods: 2.7 mm
Semicircular adhesive reinforcements: Polyester 80 gr/m2
Trailing edge 20 mm mylar galon

Data input files: pre-data.txt  leparagliding.txt  gnua.txt  gnuat.txt
Output files: lep-out.txt  lines.txt
CAD DXF2000 files: gnuA2-2D.dxf  gnuA2-3D.dxf
Is planned drawing soon more detailed plans, including the line labels, LE rods, and other important details.

As always, the plans are delivered free ("of freedom") to be studied and copied for any purpose, to make a prototype, or even serial units. You may copy the design, improve it (or not), change the colors and/or the name, suited to your tastes.

gnuA2
Figure 1: gnu-A2 3D model

gnuA2
Figure 2. gnu-A2 internal V-ribs "type 3"

gnuA2 paraglider
Figure 3. gnu-A2 planview

This glider, is the one that I would fly at this time!
Teiā, 6 September 2016

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.