Use Of Speed Bar; Performance & Use Of Brakes; Asymmetric Or Frontal (Symmetric) Collapses - Sky FIDES 4 Handbuch

18 18
B-line Stall
Grasp the B risers below the quick links and pull them symmetrically.
The paraglider will stall and drop backwards before stabilizing overhead.
The descent rate increases to 6 - 8 m/s.
In order to release the B-line stall raise both hands together in a single quick
movement. As soon as the B risers are released, FIDES 4 should return
to a normal flight. If the B-line stall is released incorrectly, the paraglider may
remain in a parachute (deep) stall. The recovery of the paraglider could
be then initiated by using the speed bar. If the speed bar is not fitted, pulling
on the A risers by 4 – 5 cm will have the same result.
Caution: unlike big ears and spiral (see above) in a B-line stall, is in a stalled
state.
6) Performance & use of brakes
FIDES 4 best glide is at trim speed (no brakes) – about 36 km/h.
Minimum sink rate is achieved by applying approx. 15% of the brakes.
When using more than 30% of the brakes the aerodynamics and
the performance of the glider will deteriorate and the effort
to manoeuvre will increase quickly.
Beware of extremely high brake pressure as this may indicate an impending
stall which occurs at full brake travel (100% brakes). In normal flying
conditions the optimal position for the brakes, in terms of performance and
safety is within the top third level of the braking range.

7) Use of Speed Bar

FIDES 4 is equipped with a speed system. For fitting and positioning the
speed bar consult the instructions of the harness manufacturer. Before
every take-off check that the speed bar works freely and that the lines
are long enough to ensure that it is not engaged permanently. If the harness
is fitted with a front mounted reserve the speed bar lines must pass under
the reserve container and the reserve bridle so that it can be deployed easily.
Use of the speed bar increases the maximum speed of the paraglider by up
to 30% of the trim speed. However, it does reduce the angle of attack and
therefore there is a risk of a frontal (or asymmetric) collapse. We therefore do
not advise use of the speed bar near the ground or in turbulent air.
8) Asymmetric or Frontal (Symmetric)
Collapses
Flight testing has proven that FIDES 4 recovers on its own after collapses,
however active piloting is recommended in the event of an asymmetric or
frontal collapse. Active piloting will reduce the loss of altitude and change
of direction.
In case of a frontal (symmetric) collapse:
 Bring both brakes down symmetrically to speed up the reopening
of the paraglider, and then raise your hands back up immediately.
In case of an asymmetric collapse:
 Keep the paraglider flying straight by leaning in the opposite direction
to the collapse and simultaneously applying the brake on the opposite
side of the collapse.
 Speed up the reopening of the closed side by a single, positive input
on the collapsed side.