Nervures FAIAL Manual page 19

PARACHUTAL PHASE (DEEP STALL)
Even though it has never happened during the tests, should this phe-
nomenon arise, in order to put the wing back into normal flight one should en-
gage a moderate turn and then control the surge which follows by applying ade-
quate braking.
If this phenomenon does occur it is a sign of ageing and requires a wing in-
spection. In the case of a deep stall close to the ground, it is better to land in
this configuration than to attempt any exit manoeuvres.
If the canopy gets wet, it may react differently. If you should fly in to rain, push a
bit on the speed bar and land as soon as possible.
CLOSURES
The reopening, on this model, is generally spontaneous and immediate.
It cannot be excluded that after a massive closure which causes a turn, if noth-
ing is done, it could degenerate into auto-rotation .
To correct for this the pilot should transfer his weight to the inflated side and if
necessary brake on the outside of the turn. Once the rotation has been
stopped, if the wing has not already reopened, pull on both controls briefly and
simultaneously to open it, but avoid slowing the wing excessively to avoid a
stall.
RADICAL MANOEUVERS
Radical manoeuvres should be avoided. They have been done during
the numerous test flights but are not within the normal flying limits of a para-
glider.
- wingovers with more roll than 60° either side of the vertical,
- slowing and then releasing the controls producing pitching movement
Greater than 45° either side of the vertical,
- Stalling manoeuvres,
- sudden turns at very low speed, susceptible of degenerating into flat
spin or asymmetric stalls,
- closing manoeuvres using the risers.
Any aerobatic flight beyond the above limits are not recommended by the
manufacturer and so will be at the pilots own risk.
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