SKY PARAGLIDERS SKY APOLLO Bi Manuel D'utilisation page 18

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CAUTION: A deep spiral is a radical manoeuvre. The kinetic energy
generated must be dissipated by gradual release of the inside brake.
Too much weight shift towards the direction of turn, or a spiral executed
too agressively may lead to the APOLLO Bi remaining in the spiral. In this
situation a positive input may be necessary to exit the spiral.
B-line Stall
Grasp the B risers at the quick links and pull them down simultaneously.
The paraglider will enter a B-line stall and drop backwards before stabilizing
overhead. The descent rate increases to 6 – 8 m/s. To exit the B-line stall
raise both hands together in a single, positive movement so that the risers
are at full extension. On releasing the B-risers, your APOLLO Bi should
return immediately to normal flight. An adjustment error, control error
or special aerological conditions may lead to a prolonged stall phase. In
this case pulling on the A-risers by 4 – 5 cm will initiate recovery of the
paraglider.
Caution: unlike big ears and spiral dives (see above) a glider in a B-line is
in a true stalled position.
For this reason, a B-line stall should never be performed close
to the ground.
6) Performance & use of Brakes
The APOLLO Bi best glide is at trim speed (no brakes) – about 38 km/h.
The minimum sink rate is achieved by applying approx. 15% brake.
When using more than 30% brake the aerodynamics and the performance
of the glider deteriorate and the brake pressure rapidly increases.
Extremely high brake pressure indicates great risk of an impending
stall. This occurs at full brake travel (100% brake). In normal flying
conditions the optimum brake position, in terms of performance and
safety, is within the top third of the braking range.
7) using trimmers
Your APOLLO Bi is set up with trim tabs. This system involves the additional
pre-flight check of verifying that the trimmers are set symmetrically.
For the following situations we recommend trim setting:
on/trimmers tight
 Steeply sloping launch
 Flight with a heavy passenger (Total Flying Weight 160-190 kg)
 Thermal flight
For the following situations we recommend trim setting:
off/trimmers loose
 Gently sloping launch
 Flight with a light passenger (Total Flying Weight 120-150 kg)
 Transition glides
Note: APOLLO Bi features our new magnetic 'Tab tidy' system. When
flying with trimmers set at slower speeds, trimmers on, the excess trim
tab webbing can now be neatly stowed on the dedicated riser magnet to
avoid unnecessary flapping and interference.
8) Asymmetric or Frontal (Symmetric)
Collapses
Despite tests showing that the APOLLO Bi recovers spontaneously after
collapses, active piloting is recommended in the event of an asymmetric
or frontal collapse. Active piloting will reduce the loss of altitude and
a change of direction.
In the event of a frontal (symmetric) collapse:
 Bring both brakes down symmetrically to speed up reopening of the
leading edge, then immediately bring your hands back up to normal
flying position.