APAX evo user manual
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Figure:
Grabbing the stabilizer/winglet main line
WARNING: Counter-steering too strongly on the inflated side of the glider can result in a
stall and to further uncontrolled flight manoeuvres (cascade of events).
Always remain aware of other aircraft and terrain when dealing with a problem on your
wing. Do not hesitate to throw your reserve parachute if the rotation in a cravatte is
increasing uncontrollably, especially if you are at low altitude.
Symmetric collapses (Front stall)
A negative angle of attack can also cause part or all of the leading edge of the glider to
collapse.
Symmetric (frontal) collapses will normally re-open without pilot input. The paraglider will
pitch forward and then regain speed. Assist this process if necessary with a symmetric
application of the brakes. Take care not to apply too much brake for too long as this may stall
the wing.
In the case of extreme front stalls across the entire wing chord, the wing tips may move
forward making the glider form a U-shape. Again, recovery is by light symmetrical braking on
both sides. Take care that both wing tips return to normal flight evenly.
WARNING: If you get a collapse while in accelerated flight, release the speed bar
immediately. Then apply the normal procedure for unaccelerated asymmetric collapses.
Types of stall
When a paraglider flies through the air, a laminar and turbulent boundary layer is created.
Extremely dangerous flight configurations can result if the laminar boundary layer is
interrupted, with practically the entire airflow along the top surface breaking away. This
happens in particular when the angle of attack is too great.
WARNING: Full stall and spin are manoeuvres which can be fatal if recovery is not correct.
These manoeuvres should therefore be avoided. However, it is important to learn how to
recognise the indications that a glider is about to stall so that you can take immediate
action to prevent it.
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Summary of Contents for APAX evo
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