Extreme Flying Maneuvers; Collapse; Line Over; Front Stall - Nova ARGON Betriebshandbuch

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Extreme Flying Maneuvers:

Collapse:

A negative angle of attack will cause the NOVA ARGON to collapse (e.g.
in turbulent air).
If one wing tucks, straight flight should be maintained by "correcting for
direction" - braking gently on the inflated side.
In case of a big collapse, this braking should be applied very carefully to
avoid stalling the remaining inflated wing. The pilot's "correction for
direction" can be aided by a "pumping out of the deflation", a slow, long
pumping action on the brake of the deflated side of the wing helps the
canopy to re-inflate.
If the pilot does not correct, the NOVA ARGON usually self-recovers.
However, if it does not self recover and the pilot does not correct the
canopy can enter a stable spiral dive.

Line over:

The pilot stabilizes the glider by gently applying the brakes. Without the
pilot's action the line over will result in a stable spiral dive.
Here are various possibilities to untangle a line over:
- pumping the collapsed side.
- pulling the stabilizer line or lines causing problem.
- should both measures fail, it is possible to untangle the line over by
inducing a full stall. This maneuver, however, should only be carried out
by advanced pilots with experience in extreme flight situations and with
sufficient altitude available.
IF THESE MANOEUVRES FAIL OR IF IN ANY DOUBT, THE PILOT
SHOULD INSTANTLY USE THE RESCUE SYSTEM!

Front stall:

A front stall can be induced by strongly pulling the A-risers or by sudden,
heavy turbulence. The entire leading edge impulsively collapses.
Gentle braking on both sides will reduce the lateral pendulum motions
and simultaneously accelerate reinflation. The NOVA ARGON generally
self recovers from an initiated front stall.