Skywalk X-ALPS4, Pro Manual

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X-ALPS 4
EN
Examples:
> If the pilot is surprised near a summit with little ground clearance by strong wind or a
thundercloud, neither a B-stall nor a spiral dive can help.
> If the pilot is stuck in very strong lift, it is advisable to exit the lift band with the use of
big ears and to find sinking air in which to lose altitude.
B-LINE STALL
This manoeuvre is not possible with the X-ALPS4. For fast descent use a spiral dive
or big ears.
You can find further information about descent techniques in the enclosed “BASIC GUIDE”.
8 EXTREME FLIGHT
COLLAPSES
The skywalk X-ALPS4 has been certified with special folding lines. The provocation of side
and front collapses by pulling on the A-risers is not possible and can lead to unpredictable
reactions!
You can find further information about extreme flight behavior in the enclosed “BASIC GUIDE”.
9 MATERIALS
The skywalk X-ALPS4 is manufactured from the highest quality materials.
skywalk has selected the best possible combination of materials with regard to resil-
ience, performance and longevity. We are aware that the durability of the glider is a
deciding factor in the pilot’s satisfaction.
WINGS AND RIBS
Upper sail: Porcher Skytex 27g
Lower sail: Porcher Skytex 27g
Ribs: Porcher Skytex 27g hard
LINES
A, B, C Main lines: Edelrid 8000-U230/190/130
A, B, C Middle lines: Edelrid 8000-U90/70
A, B, C Top lines: Liros DC60/35
Brake lines: Liros DFLP 200/32, DC35 Edelrid 8000-U130/50
RISERS
The risers are made of 6mm Dyneema webbing. Stretching values, strength and stability
of this material is among the highest of all webbing products available.
10 HOMOLOGATION
The X-ALPS4 is certified to LTF 09 and EN926-1, EN926-2 in the category D.
Special folding lines were used when X-ALPS4 was going through certification. Without
these folding lines, asymmetric and symmetric collapses (tucks and frontals) may not
behave or recover as they did in certification tests. The folding lines have a special set-
ting according to the LTF/EN D requirements.
At the canopy, the folding lines are attached to special loops at the test model. At the
lower end, their three main lines are attached to a special riser. Please contact skywalk
if you have any questions regarding use of the folding lines and riser.
The X-ALPS4 is defined as a lightweight sport aircraft with an empty weight of less than
120kg in the paraglider category. The many homologation tests are the last hurdle in
the development of a skywalk paraglider. The homologation test flights only take place
when the test team is completely happy with the glider development.
We remark that the certification results will differ during flight in thermals or turbulent air.
The homologation informs solely regarding the paraglider performance during extreme-
flight- manoeuvres performed in stable air conditions. These extreme-flight-manoeu-
vres during the homologation process should thus not be over-valued.
Remember that certification maneuvers were carried out with a harness in the group
GH with a carabiner distance (middle to middle) of 42-46 cm. If another harness is used,
the glider may display flight characteristics that differ from those in the description.
Homologation 9 8 Descent techniques | Materials | Extreme flight