Advanced Flight Techniques; B-Line Stall - Ozone OCTANE FLX Betriebshandbuch

ADVANCED FLIGHT TECHNIQUES

Rapid Descent T echniques
Ozone would like to remind you that these manoeuvres should be
learnt under the supervision of a qualified instructor and always used
with caution. Never forget that properly analysing the conditions
before launch will help avoid the need to use these techniques.
Big Ears
Folding in the wingtips increases its sink rate. This is useful for stay-
ing out of cloud or descending quickly. To pull big ears, keep hold of
your brake handles and take the outermost A-line on each side, then
pull down (preferably one at a time) until the tips of the wing fold
under.
Do not use the brakes other than for re-inflation. For directional con-
trol while using the Big Ears, you should use weight shift steering.
To reopen your big ears, release both A lines at the same time. To
help reinflation, brake gently one side at a time until tips regain pres-
sure. Avoid deep symmetric applications of the brake as this could
induce parachutal or full stalls.
IMPORTANT: You can land with the ears (you should release
the ears before final flare). Ozone do not advise you to do
this when it's turbulent or windy due to the risk of a pos-
sible stall and lack of precision in steering.
Big ears and accelerator
Once the big ears are in you can further increase the sink rate by
pushing on the accelerator bar.
NEVER try to pull the Big Ears in with the speed bar on. This
can lead to a major asymmetric deflation.
Big ears and spiral dive
Whilst it is possible to enter a spiral dive whilst holding in Big Ears,
the high forces applied to the lower lines could exceed the breaking
strain of the lines leading to equipment failure!
Ozone do not recommend the use of this manoeuvre!
Wingovers
The limit is tightly banked S-turns, commonly known as wingovers.
These must not exceed 90 degrees of bank.
WARNING: Uncoordinated wingovers can lead to large
asymmetric collapses and therefore should never be execut-
ed near the ground.

B-Line Stall

B-stall is for fast descents in emergency situations only. B-stall is
performed by symmetrically pulling down on the B-risers.
To initiate the B-stall place your fingers between the lines above
the maillons on the B risers. Do not release the brake handles. As
you pull the B-lines down the airflow over the wing is broken and the
glider loses its forward speed but remains open and you will descend
at around 6 m/s.
If you pull too much B-line the glider will horseshoe and move around
a lot.
To exit the B-stall the B-risers should be released symmetrically and
in one smooth, progressive motion. The glider will resume normal for-
ward flight without further input. Check you have forward flight again
before using the brakes.
IMPORTANT: The pitching movement on exiting the B stall
is small but necessary. We recommend you do not brake
the glider until you are sure that the glider is flying again.
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