Deep Stall; Full Stall; Negative Spin - Gradient BRIGHT4 User Manual

Pilot's manual Bright4 November 2010
- Recovery: In normal conditions the Bright4 will recover normal flight
automatically as soon as the front risers are released. Applying the brakes on
both sides simultaneously can help re-open the paraglider

5.3.3. Deep Stall

- Initiation: Pull both brakes smoothly until the sink rate increases markedly and
the forward speed reaches almost zero. The pull on the brakes should be
controlled so that the canopy stays inflated and doesn't fall back into a full stall.
- Recovery: The Bright4 cannot stay in deep stall flight, so after the brakes are
released the glider automatically returns to normal flight. If you need to, you can
accelerate recovery by pulling hard on both brakes, followed by a fast release. Or
you can pull lightly on the A-risers. CAUTION: If you pull too hard on the A-risers
you may experience a full frontal collapse.

5.3.4 Full Stall

- Initiation: Wind the control lines once or twice around your hands and pull both
of them down smoothly. Hold them down until the canopy falls behind the pilot
and deforms into a characteristic crescent shape. Hold your hands firmly (press
them underneath the seat) and be careful that you do not release the brakes
prematurely or asymmetrically.
- Recovery: The Bright4 recovers from a full stall automatically after the brakes
are smoothly released. During correct recovery from a full stall the Bright4 shows
no extreme tendencies such as a diving in front of the pilot. If the brakes are
released prematurely or too quickly there is a possible tendency for the glider to
dive ahead of the pilot. This can be corrected by adequate simultaneous braking
on both-sides.
CAUTION: When exiting a Full Stall if the brakes are released
asymmetrically the glider may suffer a massive asymmetrical collapse
followed by a tendency to enter a spin.

5.3.5 Negative Spin

- Initiation: Slow down by braking to nearly minimum speed. Then pull a brake on
one side all the way down while simultaneously releasing the brake on the other
side. Because the stalled side falls back, the canopy suffers airflow disruption
over one half of the wing which results in a spin and a rapid loss of altitude.
- Recovery: Under normal circumstances the Bright4 is capable of recovering
from a negative spin automatically when the brakes are released.
CAUTION: In general when there is a very fast or a long-lasting rotation and when
the brakes are released too quickly, the canopy may shoot in front of the pilot
followed by a massive asymmetrical collapse.
Web: www.gradient.cx Mail: gradient@gradient.cx Tel+Fax: +420 257 21 63 19