Ozone Magnum Betriebshandbuch Seite 12

B-Line Stall
B-stall is for fast descents in emergency situations only. B-stall is
performed by symmetrically pulling down on the B-risers.
To initiate the B-stall place your fingers between the lines above
the maillons on the B risers. Do not release the brake handles. As
you pull the B-lines down the airflow over the wing is broken and the
glider loses its forward speed but remains open and you will descend
at around 6 m/s.
If you pull too much B-line the glider will horseshoe and move around
a lot.
To exit the B-stall the B-risers should be released symmetrically and
in one smooth, progressive motion. The glider will resume normal for-
ward flight without further input. Check you have forward flight again
before using the brakes.
IMPORTANT: The pitching movement on exiting the B stall
is small but necessary. We recommend you do not brake
the glider until you are sure that the glider is flying again.
The load applied on the B lines during this manoeuvre is not very good
for your glider, only use it in emergency situations.
Spiral Dives
If you turn your Magnum in a series of tightening 360's it will enter
a spiral dive. This will result in rapid height loss. To initiate a spiral,
look and lean in to the direction you want to go, then smoothly pull
down on the inside brake. The Magnum will first turn almost 360
degrees before it drops in to the spiral. Once in the spiral you must
apply a little outside brake to keep the outer wing tip pressured and
inflated.
Safe descent rates of 8 metres per second (500 ft/min approx.)
are possible in a spiral dive, but at these rates the associated high
speeds and G-forces can be disorientating, especially for the passen-
ger so pay particular attention to your altitude.
To exit the spiral dive, return your weight shift to a central position
and then slowly release the inside brake. As the Magnum decelerates
allow it to continue to turn until enough energy is lost for it to return
to level flight without an excessive climb and surge. The Magnum
shows no indication of remaining neutral in the spiral dive, however
some parameters could interfere with its behaviour such as; wrong
settings of the chest strap (too wide), total weight in flight outside
of the certified weight range, or being in a very deep spiral at a very
high sink rate. You should always be prepared to pilot the wing out
of such a spiral dive. To do so smoothly use opposite weight shift
and apply a small amount of outside brake and the glider will start to
resume normal flight. Never attempt to recover from a spiral with
hard or quick opposite inputs as this will result in an aggressive climb
and surge.
IMPORTANT: Spiral dives with sink rates over 8 m/s are
possible, but should be avoided. They are dangerous and
put unnecessary strain on the glider. Spiral dives cause
disorientation and need time and height to recover. Do not
perform this manoeuvre near the ground.
INCIDENTS
Deflations
Due to the flexible form of a paraglider, turbulence may cause a por-
tion of the wing suddenly to collapse. This can be anything from a
small 30% (asymmetric) collapse to a complete (symmetric) collapse
If you have a collapse, the first thing to do is to control your direc-
tion: You should fly away from the ground or obstacles and other
pilots, or at least not to fly into them... Asymmetrical collapses can
be controlled by weight shifting away from the collapse and applying a
small amount of brake to control your direction. This act will most of
the time be enough for a full recovery of the wing.
Once a glider is deflated it is effectively a smaller wing, so the wing
loading and stall speed are higher. This means the glider will spin or
stall with less brake input than normal. In your efforts to stop the
glider turning towards the collapsed side of the wing you must be
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