Advance SIGMA 4 Manuel D'utilisation page 37

increasing drag. The leading edge becomes more loaded and the angle
of attack is reduced thereby maintaining speed. Attention: do not enter
a spiral dive with big ears - this manoeuvre results in extremely high
forces and can result in damage to glider.
in order to quickly reduce height
Using speed system with Big ears:
and fly away from danger we recommend the following: place your feet
on the speed system. Apply 2 line big ears. This will symmetrically
collapse 1/3 of the leading edge and reduce the angle of attack. Apply
speed bar to the desired point and steer using weight shift.
our experience indicates that a B line stall is not currently
B line stall:
the most efficient manoeuvre. In addition to this it can also damage the
glider. We therefore recommend that this manoeuvre is not flown with
the . If however you still would like to try it then take the
SIGMA 4
B line quick links and pull them firmly down towards shoulder level.
A descent rate of 5-7m/s is achieved. Release the risers quickly. The
then immediately resumes normal flight.
SIGMA 4
the progressive application of both brakes
Parachutal stall / full stall:
reduces forward speed as is evidenced by the reduction in the presence
of wind noise. After minimum speed the glider goes into a momentary
phase of parachutal stall which, if the brakes are pulled further down,
is followed by a full stall with the glider falling behind the pilot. The
does not possess a stable parachutal (or deep) stall.
SIGMA 4
we recommend you to select a landing site that you are
Landings:
familiar with, as well as having no obstacles. Beware of your first
landings with the as its performance will almost certainly be
SIGMA 4
superior to your previous canopy.
Remember to build up speed prior to landing but do not let the brakes
up completely ; flare the glider by progressively applying the brakes
before landing. Avoid brutal braking after allowing the canopy to accelerate
as this will convert into lift of several metres above the ground.
the is suited to tow or winch launch.
SIGMA 4
Launching by winch:
The glider does not require any modification or particular manoeuvre
for this type of launch.
Winch launch is only permitted if:
- The pilot has a winch / tow endorsement.
- The winch system is certified for use with paragliders.
- The operator has fully learnt how to winch paragliders.
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