Advance acoustic SIGMA 9, Руководство пользователя

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Symmetric collapse (frontstall)
After a spontaneous or A-riser provoked collapse the airflow
breaks away from the profile and the canopy will pitch back . The
pilot swings back underneath after a short delay . Wait, without
applying brake, until the wing is again above you and returns to
normal flight . After a big collapse reopening may be delayed, but
do not forcibly encourage reopening by the use of excessive brake,
because of the risk of a fullstall .
Caution:
§
To simulate a front collapse all A-risers must be taken hold
of and pulled down .
§
After a very impulsively provoked front collapse in accele-
rated configuration ( for example during SIV training) it can
happen that the front of the canopy does not open by itself .
Help the wing to open with a brief brake impulse by pulling
the brakes to 75% within one second, immediately and
completely release them, then be prepared to control the
forward surge .
Rapid descents
For quick and efficient ways of getting down the ADVANCE test
team recommend big ears (with or without speed bar ) or the spiral
dive – the choice depends on the situation .
Tip: Fast descents should be practised now and then in
quiet conditions – so they won’t become emergencies when
you need them .
Symmetrical collapsing of the wingtips
(big ears)
The SIGMA 9 has split A-risers, which make it easy to apply big
ears .
To do this pull both outer A-risers quickly down at the same time .
The wingtips will fold, and can be easily held in this position . To
reopen release the risers; if the wingtips do not open by themsel-
ves a brake impulse will help them .
Sink rate can be further increased by using the speedbar .
Depending on the situation the glider can be steered using weight
shift .
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