Extreme Flight Maneuvers - Skywalk TEQUILA4 XS Manuel

EXTREME FlIGHT MANEUVERS

ASyMMETRIC CollApSE
In strong turbulence, there is always the danger of a collapse. Normally, the docile behavior
of the skywalk TEQUILA4 results in the collapse opening by itself.
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 carefully 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.
CRAVAT/ lINE oVER
This type of disturbance has never occurred during test flights with the skywalk
TEQUILA4. 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 open side
> Pulling on the stabilo-line
Should these maneuvers not succeed or if the pilot fells overwhelmed
by the situation, the rescue parachute should be deployed immediately!
FRoNTSTAll
The glider can be front-stalled with a strong pull on the A-risers or when encountering
sudden down drafts. The leading edge collapses impulsively along its entire length. Light
brake pressure can reduce oscillations around the longitudinal axis and will help to speed
up the opening of the canopy.
The skywalk TEQUILA4 will recover from a front stall by itself. Should the recovery be de-
layed by turbulence, you can support it with light braking on both sides. Make sure that
you don't over brake your glider!
52
pARACHUTAl STAll
The TEQUILA4 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, as are those that are burdened
frequently by winch tow launches. 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.
The skywalk TEQUILA4 will normally recover from a parachutal stall by itself. If this doesn't
happen, the pilot can end the stable parachutal stall by pushing forward on the A-risers
at the level of the line shackles.
CAUTIoN
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 paraglider 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 (e.g. while thermal flying).
If an accidental negative spin is exited immediately, the skywalk TEQUILA4 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.
53 53 53