Niviuk ICEPEAK 3 22 User Manual

Contents

Niviuk ICEPEAK 3 22 User Manual Manual pdf 8 page image

84.2 POssIBle CONFIGUrATIONsWe recommend that training to master these manoeuvres be carried outunder the supervision of a competent school.Asymmetric collapseIn spite of the high stability of the profile of the ICEPEAK 3, heavyturbulent conditions may cause part of the wing to collapse asymmetrically.This usually happens when the pilot has not foreseen this possible reactionof the wing. When the wing is about to experience an asymmetric collapsethe brake lines and the harness will transmit a loss of pressure to the pilot.To prevent the collapse from happening, pull the brake line correspondingto the compromised side of the wing, this will increase the angle ofincidence. If the collapse does happen the ICEPEAK 3 will not reactviolently, the turn tendency is very gradual and it is easily controlled. Leanyour body towards the side that is still flying in order to counteract the turnand maintain a straight course, if necessary slightly slow down the sameside but do not brake it excessively as this may induce a stall. The collapsewill normally open by itself but if that does not happen, pull completely onthe brake line on the side which has collapsed. Do this with a smooth andfirm movement. You may have to repeat this operation to encourage there-opening. When the collapse has been solved, remember to allow the wingrecover its flying speed.Symmetric collapseIn normal flying conditions the design of the ICEPEAK 3 ensures that asymmetric collapse is quite improbable. The profile of the wing has beendesigned to widely tolerate extreme changes in the angle of incidence. Asymmetric collapse may occur in heavy turbulent conditions, on entry orexit of strong thermals or lack of adapting the use of the accelerator to theprevailing air conditions. Symmetrical collapses usually re-inflate withoutthe glider turning but you can symmetrically apply the brake lines witha quick deep pump to quicken the re-inflation. Release the brake linesimmediately to recover optimum flight speed.ICePeAK 3 is a competition glider, and as such the brake travel is notexcessive, any reaction to a control input is immediate. Any correctiveaction such as pumping the brakes must be carried out quickly so not toinduce a full stall.Negative spinThis configuration is out of the normal flight behaviour of the iCePeaK 3.Certain circumstances however, may provoke this configuration such astrying 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 variesdepending on the circumstances. remember that you should restore therelative air speed over the wing. To achieve this, progressively reduce thepressure on the brake lines and let the wing gain speed. The normal reactionwould be a lateral surge with a turn tendency no greater than 360º beforerestoring to normal flight conditions.Parachutal stallIf it does occur, the feeling would be that the wing would not have anyforward motion, you would feel a sense of instability and a lack of pressureon the brake lines, although the canopy would appear to be correctlyinflated. The correct reaction would be to release the pressure on the brakelines and push the A lines forward or rather lean your body to any sideWITHOUT PULLING ON THE BRAKE LINES.Deep stallThe possibility of the ICEPEAK 3 falling into this configuration duringnormal flight is very unlikely. This could happen if you are flying at avery low speed, whilst over steering in a number of manoeuvres and inturbulent conditions. To provoke a deep stall you have to take the wingto minimum flight speed by symmetrically pulling the brake lines, whenyou reach this point, continue pulling until you reach 100% and thenhold. The glider will first fall behind you and then situate itself above you,rocking slightly, depending on how the manoeuvre was carried out. Whenyou start to provoke a stall, be positive and do not doubt an instant. Donot release the brake lines when half way through the manoeuvre. This