Niviuk ARTIK 5, User Manual

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4.4 FLYING WITHOUT BRAKE LINES
If, for any reason at all, the ARTIK 5’s brake lines become disabled in
flight, it will become necessary to pilot the wing with the D-risers and
weight shifting until landing. These risers steer easily because are not
under significant tension. You will have to be careful and not handle them
too heavily in case this causes a stall or negative spin. The wing must
be flown at full speed (not acellerated) during the landing approach, and
the D-risers will have to be pulled symmetrically all the way down shortly
before contact with the ground. This braking method is not as effective
as using the brake lines, and hence the wing will land with a higher
ground speed.
4.5 LINE KNOT(S) IN FLIGHT
The best way to avoid knots and tangles is to thoroughly inspect the lines
as part of a systematic pre-flight check. If a knot is spotted during the
takeoff phase, immediately abort the launch sequence and stop.
If inadvertently taking off with a knotted line, the glider drift will need to
be compensated by weight-shifting to the opposite side and applying a
slight brake pull to that side. Gently pull the brake line to see if the knot
can be undone or try to locate the problem line. Try pulling it to see if the
knot can be undone. Beware of trying to clear a knotted line or untangle
a line in flight when close to the terrain. If the knot is too tight and cannot
be undone, carefully and safely fly to the nearest landing zone. Be
careful: do not pull too hard on the brake handles because there will be
an increased risk of stalling the wing or entering a negative spin. Before
attempting to clear a knot, make sure there are no other pilots flying in
the vicinity.
5. LOSING ALTITUDE
Knowledge of different descent techniques could become vital in
certain situations. The most suitable descent method will depend on the
particular situation.
To become familiar with the manoeuvres described below, we
recommend practising within the environment of a licensed training outfit.
5.1 BIG EARS
Big ears is a moderate descent technique, able to increase the sink rate
to –3 or –4 m/s and reduces the ground speed by 3 to 5 km/h. The angle
of attack and effective wing-loading will also increase due to the smaller
surface area of the wing.
Standard technique
To perform the ‘Big ears’ manoeuvre, take the outermost line on each
A-riser and simultaneously, smoothly pull them outward and downward.
The wingtips will fold in.
To re-establish forward speed and the correct angle of attack, accelerate
once the ears are pulled.
Keep the ears pulled in until you have lost the desired altitude.
Let go of the lines to re-inflate the tips automatically. If they do not, try
progressively pulling one brake then the other. We recommend inflating
the wing tips asymmetrically, without major change to the angle of
attack, especially when flying near the ground or flying in turbulence.
Beware of the risk of stalling!
The action of reaching for the“4A3” A-lines to pull on big ears, can
inadvertently mean pulling the brakes. The same can happen when
we are holding the tips down with the “4A3” A-lines, it is possible to