9
Various things can cause a paraglider to deep stall, e.g.
shrinkage of the C and D lines
as a result of dampness or flying in the rain. The airflow from the front of the glider
gradually breaks away towards the back and the canopy sags, with the glider remaining
upright. Paragliders are particularly susceptible to deep stalls if the wing loading is too
low.
Deep stall
C and D lines which are too short, for example, can often be recognised because launch
behaviour deteriorates.
You can recognise a deep stall because there is less flight noise than normal. In
addition, your sink rate will increase (4-5 m/s).
Remain in an upright position and push the A- and B-risers in the direction you are flying,
so as to shorten them by 5 to 10 cm.
Recovery
If you have a speed system, simply use it to accelerate.
Caution! Accident risk!
The minimum flight speed increases when there is rain or line shrinkage. This means
that you must be very careful when using the brakes.
Front Stall
Strong turbulence can cause part or all of the leading edge of the glider to fold or tuck
under.
Normally the Astral 3 will immediately recover its normal flight position.
Recovery
If the Astral 3 does not immediately recover from a frontal tuck, brake quickly and
strongly with both steering-lines (brake lines) to re-inflate the glider.
Asymmetric
tucks
If there is turbulence, one side of the paraglider may collapse. Some of the cells deflate
and the paraglider could collapse or spin.
During test flights the Astral 3 self-recovered on release of the A-risers which were pulled
down and caused the collapse.
Counter-brake slightly on the side of the paraglider that is still inflated to stop it
turning away and to stabilise it.
Recovery
Counter-brake just enough that the paraglider continues to fly straight ahead.
If the wing has not yet self-recovered, pump with the brake on the side that has
collapsed in order to open it, making use of the full braking distance. "Shaking" is
not enough.
Caution! Accident risk!
Counter-braking
too strongly can result in a stall on the inflated side.
Summary of Contents for Astral 3
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