Niviuk ICEPEAK 3 22, User Manual

8

4.2 POssIBle CONFIGUrATIONs

We recommend that training to master these manoeuvres be carried out 
under the supervision of a competent school.

Asymmetric collapse
In spite of the high stability of the profile of the ICEPEAK 3, heavy 
turbulent conditions may cause part of the wing to collapse asymmetrically. 
This usually happens when the pilot has not foreseen this possible reaction 
of the wing. When the wing is about to experience an asymmetric collapse 
the brake lines and the harness will transmit a 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 3 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 maintain a straight course, if necessary slightly slow down the same 
side but do not brake it excessively as this may induce a stall. 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. Do this with a smooth and 
firm movement. You may have to repeat this operation to encourage the 
re-opening. When the collapse has been solved, remember to allow the wing 
recover its flying speed.

Symmetric collapse
In normal flying conditions the design of the ICEPEAK 3 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.

ICePeAK 3 is a competition glider, and as such the brake travel is not 
excessive, any reaction to a control input is immediate. Any corrective 
action such as pumping the brakes must be carried out quickly so not to 
induce a full stall.

Negative spin

This configuration is out of the normal flight behaviour of the iCePeaK 3. 
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 occur, the feeling would be that the wing would not have any 
forward motion, you would feel a sense 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 3 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