Niviuk ICEPEAK 7 PRO-MODEL, Руководство пользователя

Страница: 9 / 21

9
loss of pressure to the pilot. To prevent the collapse from happening,
pull the brake line corresponding to the compromised side of the wing,
this will increase the angle of incidence. If the collapse does happen the
ICEPEAK 7 PRO-MODEL will not react violently, the turn tendency is
very gradual and it is easily controlled. Lean your body towards the side
that is still flying in order to counteract the turn and to maintain a straight
course, if necessary slightly slow down the same side. The collapse will
normally open by itself but if that does not happen, pull completely on
the brake line on the side, which has collapsed (100%). Do this with a
firm movement. You may have to repeat this operation to provoke the
re-opening. Take care not to over-brake on the side that is still flying (turn
control) and when the collapse has been solved; remember to let the
wing recover its flying speed.
Symmetric collapse
In normal flying conditions the design of the ICEPEAK 7 PRO-MODEL
ensures that a symmetric collapse is quite improbable. The profile of
the wing has been designed to widely tolerate extreme changes in the
angle of incidence. A symmetric collapse may occur in heavy turbulent
conditions, on entry or exit of strong thermals or lack of adapting the use
of the accelerator to the prevailing air conditions. Symmetrical collapses
usually re-inflate without the glider turning but you can symmetrically
apply the brake lines with a quick deep pump to quicken the re-inflation.
Release the brake lines immediately to recover optimum flight speed.
Negative spin
This configuration is out of the normal flight behaviour of the ICEPEAK
7 PRO-MODEL. Certain circumstances however, may provoke this
configuration such as trying to turn when the wing is flying at very low
speed (while heavily braking). It is not easy to give any recommendations
about this situation since it varies depending on the circumstances.
Remember that you should restore the relative air speed over the wing.
To achieve this, progressively reduce the pressure on the brake lines and
let the wing gain speed. The normal reaction would be a lateral surge
with a turn tendency no greater than 360º before restoring to normal
flight conditions.
Parachutal stall
If it does happen, the feeling would be that the wing would not be
advancing; you would feel a kind of instability and a lack of pressure
on the brake lines, although the canopy would appear to be correctly
inflated. The correct reaction would be to release the pressure on the
brake lines and push the A lines forward or rather lean your body to any
side WITHOUT PULLING ON THE BRAKE LINES.
Deep stall
The possibility of the ICEPEAK 7 PRO-MODEL falling into this
configuration during normal flight is very unlikely. This could happen
if you are flying at a very low speed, whilst over steering in a number
of manoeuvres and in turbulent conditions. To provoke a deep stall
you have to take the wing to minimum flight speed by symmetrically
pulling the brake lines, when you reach this point, continue pulling
until you reach 100% and then hold. The glider will first fall behind you
and then situate itself above you, rocking slightly, depending on how
the manoeuvre was carried out. When you start to provoke a stall, be
positive and do not doubt an instant. Do not release the brake lines
when half way through the manoeuvre. This would cause the glider to
surge violently forward with great energy and may result in the wing
below the pilot. It is very important that the pressure on the brake lines is
maintained until the wing is well established vertical above.
To regain normal flight conditions, progressively and symmetrically
release the brake lines, letting the speed be re-established. When the
wing reaches the maximum advanced position ensure that the brakes
are fully released. The wing will now surge forward, this is necessary so
that air speed is completely restored over the wing. Do not over brake
at this point because the wing needs to recover speed to quit the stall
configuration. If you have to control a possible symmetrical front stall,
briefly and symmetrically pull on the brake lines and let go even when the
wing is still ahead of you.
Wing tangle
A wing tangle may happen after an asymmetric collapse, the end of the