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Extreme flight maneuvres
7 EXTREME FLIGHT MANEUVERS
ASYMMETRIC COLLAPSE
The FLARE MOUSTACHE should be flown by seasoned pilots with experience
in extreme conditions. Your FLARE MOUSTACHE is a very stable glider, but
collapses can still happen in strong turbulence. It is crucial to understand that
the MOUSTACHE is more likely to collapse when flying in ‘full speed’ position.
Collapses will be much more violent when flying faster.
The inherent turn toward the collapsed side of the glider can be minimized
by braking the open side. With large collapses, brake the open side careful-
ly to avoid stalling the wing. If the collapse doesn’t open despite braking and
weight shifting on the open side, you can speed up the opening process by
repeatedly pumping the brake on the collapsed side.
SYMETRIC FRONTAL COLLAPSE
When you get a big frontal collapse there is a risk of the MOUSTACHE form-
ing a horseshoe shape. To avoid the horseshoe, give it a quick, symetric deep
pump on the brake handles. This way your MOUSTACHE will reopen.
CRAVAT / LINE OVER
This type of disturbance has never occurred during test flights with the
FLARE MOUSTACHE. However, it is possible in extremely turbulent air or
due to a pilot error that part of the wing could get tangled in the lines.
The pilot should first stabilize the glider by carefully braking the open side.
Without pilot reaction, a cravat can cause a glider to enter a stable spiral dive!
To clear the cravat, there are two possibilities:
> Pumping the affected side until deflation of the wing occurs.
> Fullstall.
SHOULD THESE MANEUVERS NOT SUCCEED OR IF THE PILOT
FELLS OVERWHELMED BY THE SITUATION, THE RESCUE PARA-
CHUTE SHOULD BE DEPLOYED IMMEDIATELY!
PARACHUTAL STALL
The MOUSTACHE never showed a tendency to parachutal stall in the entire
development phase. Despite this, it is possible to perform a parachutal stall.
Gliders with porous material (UV radiation) are especially susceptible .
A parachutal stall can also occur when the glider is flown in rain (soaks up
moisture). The glider has no forward speed and a high sink rate.
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The FLARE MOUSTACHE will recover from a parachutal stall by releasing the
brakes to ‘full speed’ position immediately.
IF YOU APPLY THE BRAKES DURING A PARACHUTAL STALL, THE
GLIDER WILL IMMEDIATELY ENTER A FULL STALL. NEAR THE GROUND,
A STABLE PARACHUTAL STALL SHOULD NOT BE EXITED DUE TO THE
RESULTING OSCILLATIONS. INSTEAD, THE PILOT SHOULD SIT UP IN
HIS HARNESS AND PREPARE FOR A PARACHUTE LANDING FALL.
NEGATIVE SPIN
A parakite enters a negative spin when one side of the wing is stalled.
The canopy rotates around the vertical axis with the center of rotation located
within the wingspan. The inside wing flies backwards.
There are two causes for the negative spin:
> One brake is pulled too far and too hard (e.g. when entering a spiral dive)
> One brake is pulled too hard when flying slowly.
If an accidental negative spin is exited immediately, the FLARE MOUSTACHE
will normally resume flight without much altitude loss. Just release the brake
line that was pulled too far until the airflow is restored to the inside wing.
After a long negative spin, the canopy may surge forward on one side.
This could result in an impulsive collapse.
WINGOVERS
Alternating left and right turns as the bank angle is gradually increased.
If wingovers are flown high with a large bank angle, the outside wing tip may
loose pressure and start to feel light. In this case, don’t increase the bank
angle any more as the tip could collapse impulsively.
NEGATIVE SPINS AND WINGOVERS OVER 90° ARE FORBIDDEN
ACROBATIC MANEUVERS AND ARE NOT ALLOWED TO BE FLOWN
UNDER NORMAL CONDITIONS. THE WRONG EXIT TECHNIQUE OR
PILOT OVERREACTION CAN HAVE DANGEROUS CONSEQUENCES
REGARDLESS OF THE TYPE OF GLIDER!
FULLSTALL
A full stall can be performed with the MOUSTACHE by pulling the brakes
below ‘minimum speed’ position. It is very important to initiate the full stall
in a rather slow manner to avoid having the wing fall too far behind the pilot.
EN
