2.6.4
Full Stall
In normal flight it is almost impossible to fully stall the FIDES. The brake line length is set so
long that the glider will normally only enter a full stall if the pilot wraps the lines around his or her hands once
or twice, and places both hands straight down. Brake pressure will increase dramatically and the FIDES will fight to regain
normal flight. If entering a stall deliberately, we recommend taking two wraps on the brake lines, straightening both arms at the sides, and
holding them tight against the body. The glider may full stall spontaneously if the pilot is flying very slowly in lift, and suddenly enters turbulence.
Once a stall occurs, the glider will move behind the pilot. HOLD IT IN THE STALL FOR AT LEAST 5 SECONDS or until the wing is again stabilised overhead.
This is essential to allow the glider to stabilise over head. If the controls are raised too soon, the glider may surge in front of, or even under, the pilot. This may cause an
unrecoverable flight regime. When the glider is stable over head (after at least 5 second) release both brakes quickly smoothly and continuously to the top of their travel.
The glider will surge. It may require quick and gentle braking to prevent too much of a surge.
2.6.5 Symmetrical
Collapse
Also known as a frontal, this occurs when the turbulence or a rapid change in the wing’s angle of attack (sometimes caused by a porpoising pattern of pendulum movement by the pilot). „Frontals“ can also be
brought on by suddenly leaving rapidly ascending air and entering descending air. They can also be caused by pulling down on the A-risers aggressively, or by mistakes while trying to enter „Big Ears“ (pulling too much,
pulling too many lines, pulling the rear split A riser instead of the front/outer one, etc.)
The leading edge of the wing and the cells in he leading edge „collapse“ or fold back and downward. Under normal circumstances, the wing will return spontaneously to normal flight. A quick pump of both brakes by the same a-
mount simultaneously can also „pump out“ a collapse. It is possible that the glider will enter a parachutal stall while recovering from a Frontal. If it does, take appropriate action (described above).
2.6.6
Asymmetric Collapse
The same forces that can result in a symmetrical collapse can result in a collapse of only one side of the wing. This asymmetrical collapse results in one side of the wing closing, and sometimes to losing pressure. If it occurs, first GENTLY brake
the opposite side of the wing and weight shift in the opposite side of the collapse to maintain straight flight. Smooth and reasonably quick full pumps of the brake on the collapsed side will „re-inflate“ the wing by causing the air in the wing
to move forward and open the leading edge and cell openings.
2.6.7
Common Errors
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Asymmetric braking resulting in rotation into a spin - release both brakes fully and allow the wing to recover.
●
Releasing the brakes when the wing has moved behind the pilot. Can result in a frontal, the pilot falling into the wing, a sudden dive, etc. Brake the wing strongly, quickly and symmetrically during a strong surge and hold the brakes down
at approximately 60-70% until the wing stabilises overhead.
●
Quickly releasing the brakes from very slow flight. A similar event to above will happen. The glider will not likely end under the pilot, but it will be exciting!
3.
HANDLING, STORAGE, MAINTENANCE AND REPAIR
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Avoid rough surfaces, sharp sticks, sharp rocks and any object or surface that will scrape or puncture your glider. This is not
always possible, so the glider should be carefully inspected from time to time for holes and scrapes.
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