MAC PARA ARAVIS 17, User Manual

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Flying in strong turbulence or exiting a deflation with too much brake applied can cause
this situation. A wet glider also has a higher deep stall tendency, and you should do
everything
you can to avoid flying in the rain. If you do pass through some rain never make big ears!
Apply speed bar until you are confident that the wing has dried out.
Never apply the brakes, including any wraps taken, in a deep stall.
Full-stall
The full stall happens when the maximum possible angle of attack is exceeded. The most
common cause is going below the minimum speed or flying near the minimum speed
combined with the effects of turbulence. In full stall, the paraglider loses its forwards travel,
surges backwards and deflates. If the brakes are held down, the canopy comes up over
the pilot again. The result is an almost vertical descent with a sink rate of approx. 8m/s.
To induce a full stall, apply full brake on both sides. The glider slows down steadily until it
stalls completely. The canopy suddenly surges backwards a long way. In spite of this
uncomfortable reaction of the canopy, both brake lines must be consequently held down
with all your strength until the canopy is stabilized (directly overhead). This usually takes 3-
6 seconds. The Aravis generally flies backwards during a full stall but doesn’t always form
a front rosette. A frontal rosette can be formed by entering the full stall slowly. When
entering (braking) fast, the canopy will not always form the desired front rosette.
To recover from a full stall, smoothly release symmetrically both brakes until 90% of
leading edge reopens. After that, the brakes are completely released when the glider
canopy is
filled and in front of the pilot. This prevents the canopy from pitching too far forward. As this
is done, the canopy accelerates forwards dynamically and picks up speed.
Note! If the canopy has gone back during the full stall, the brakes must be held down,
otherwise the canopy may surge forward and, in an extreme case, end up underneath the
pilot. Hold the brakes down until the canopy is above you again.
WARNING!! If the brakes are released rapidly and asymmetrically, the glider may surge
almost 90° and suffer an extensive asymmetric collapse.
Spin (or negative spin)
The spin is a stable flight manoeuvre, in which one side of the canopy stalls, while the
other side continues to fly forward. Pulling brake on one side too fast or too hard can result
in a negative spin. During a spin the canopy turns relatively fast around the centre section
of the canopy while the inner wing flies backwards (hence the term negative).
There are two usual reasons for an unintentional spin:

One brake line is being pulled down too far and too fast (e.g. when inducing a spiral
dive)

When flying at low speed one side is being braked too hard (e.g. when thermaling).