Advance acoustic SIGMA8, User Manual

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brakes. Reopening should not be forced with excessive control re-
sponses, because of the risk of a total airflow breakdown.
Rapid descent
To descend quickly and efficiently the ADVANCE test team recom-
mends a rapid descent with a spiral dive or big ears (the latter with
or without speed bar), depending on the situation. You should some-
times practise rapid descents in calm air so that they will not become
an emergency when needed.
Tip: To effectively lose height and get away from a hazardous
place you can use both of the SIGMA 8 outer A lines for big
ears (3A3 and 3A2), always with the speed system.
Symmetrical collapsing of the wingtips (big ears)
To do this manoeuvre pull the red marked outer A-line of each A-riser
simultaneously and briskly downwards. This causes the wing tips to
fold inwards and you can then hold them in this position. To reopen
let the A-lines go, and they will open by themselves after a short delay.
If necessary you can speed up the reopening with a brief tug on the
brake lines.
The sink rate can be increased by applying speed bar. Depending on
the situation the glider can be steered using weight shift.
Caution: Do not fly spiral dives or abrupt changes of direction
with big ears; the increased strain on a smaller number of
lines may result in structural damage.
Caution: Remember that flying with big ears increases the
chance of stalling. Be cautious with the use of brake when
the ears are folded and avoid this rapid descent technique
when the glider is wet. See also section «Flying with a wet
paraglider».
Tip: You can use both SIGMA 8 outer A lines (3A3 und 3A2)
for big ears without problem. The increased angle of attack
and raised form drag puts you nearer the point of stall, and
speedbar must always be applied in this configuration.
Tip: In general we recommend that the speed bar is always
used with big ears. This raises the descent rate and minimises
the risk of deep stall as well.