Niviuk HOOK 4 P Series, Руководство пользователя

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wingtips will fold in. Let go of the risers to reinflate them automatically.
If they do not, gently pump them open asymmetrically and sequentially
using the brakes, without altering the angle of attack, especially when
flying near obstacles or flying in turbulent air.
5.2 B-LINE STALL
When carrying out this manoeuvre, the wing stops flying, loses all
horizontal speed and the pilot is no longer in control of the paraglider.
The airflow over the profile is interrupted and the wing enters a situation
similar to parachuting.
To carry out this manoeuvre you have to take the B below the maillons
and symmetrically pull both of them down (approx. 20-30 cm) and then
hold this position. The initial phase is quite physical (a lot of resistance)
which means that you will have to pull strongly until the profile of
the wing is deformed, when this happens the required force will be
significantly reduced. To maintain this manoeuvre you must continue to
hold the B risers in the pulled down position. The wing will then deform,
its horizontal speed will drop to 0 km/h; vertical descending speed
increases to –6 to –8 m/s, depending on the weather conditions and how
the manoeuvre is performed.
To exit the manoeuvre, simultaneously release both risers. The wing will
then slightly surge forward and automatically return to normal flight. It
is better to let go of the lines quickly rather than slowly. This is an easy
descent technique to do but remember that the wing will stop flying, will
lose all forward horizontal speed, and its reactions will change quite a bit
when compared to a normal flight configuration.
5.3 SPIRAL DIVE
This is a more effective way to rapidly lose altitude. Beware that the
wing will experience and be subjected to a tremendous amount of
descending and rotating speed (G-force), which can cause a loss
of orientation and consciousness (blackout). This manoeuvre must
therefore be done gradually to increase one’s capacity to resist the
g-force exerted on the body. With practise, a pilot will fully appreciate
and understand it. Only practise this manoeuvre at high altitude and with
enough ground clearance.
To start the manoeuvre, first weight shift and pull the brake toggle
located on the inner side of the turn. The intensity of the turn can be
controlled by braking slightly on the outer brake toggle. A paraglider
flying at its maximum rotating speed can reach –20 m/s, or the
equivalency of a 70 km/h vertical descent, and will stabilise in a spiral
dive from 15 m/s onwards. Good enough reasons to familiarise yourself
with the manoeuvre and understand how to exit it.
To exit this manoeuvre, the inner brake toggle (down side of the turn)
must progressively be relaxed while momentarily applying tension to the
outer brake toggle opposite to the turn. The pilot must also weight shift
and lean towards the opposite side of the turn at the same time.
When exiting the spiral, the glider will briefly experience an asymmetrical
acceleration and dive, depending on how the manoeuvre was carried
out.
Practise these movements at sufficient altitude and with moderation.
6. SPECIAL CONSIDERATIONS
6.1 TOWING
The HOOK 4 P is suitable for towing. Only a qualified tow operator
should be in charge of operating a certified paragliding winch. On
the tow, the wing should be inflated the same way used during a hill/
mountain flight take-off.