Cravats - Nova XENON Bedienungsanleitung

_60
Full stall
!
If both brakes are symmetrically pulled too far, a full stall will result. This
means that the wing loses its forward momentum, whilst the pilot con-
A full stall is a com-
plex manoeuvre and
tinues to travel forwards. From the pilot's perspective it feels like the
an explanation of its
wing falls backwards. At this moment it is essential that the brakes are
correct execution is
not fully released as there is a risk that the wing will dive – potentially
beyond the scope of
this manual. Anyone
underneath the pilot.
wishing to learn this
The available brake travel up to the stall point depends on the size of
manoeuvre should
undertake an SIV/ the wing:
pilotage course.
• 42 cm for the XENON 17
These figures give a rough indication. Their inclusion in this manual is
required by EN 926. In turbulent air, a stall may occur markedly sooner
or later than these figures indicate. Therefore these figures only have
limited significance.
Due to its aspect ratio, a full stall with the XENON is demanding and
should only be performed by pilots with appropriate full stall experi-
ence.
Parachutal/deep stall
A parachutal or deep stall is defined as flight without forward
momentum and with a large sink rate. All our paragliders automatically
recover from a parachutal stall so long as the brakes are released, the
wing is in an airworthy condition and the pilot flies within the operating
limits of the glider.
If the wing is porous or its lines have been altered to the extent that it
is no longer airworthy, then the risk of deep stall is increased. A wet or
icy canopy also carries an increased risk of deep stall.
If a danger situation occurs (for example, unexpected rain) then any
manoeuvre with a high angle of attack should be strictly avoided.
In the case of a deep stall, the speed bar should be utilised. The wing
should then return to normal flight. If this is not the case, we recom-
mend pushing the A-risers forward.
• 45 cm for the XENON 18
Alternatively, it is possible to recover from a deep stall with a quick,
symmetrical tug on the brakes which allows the canopy to pitch back-
wards. The subsequent forward pitching returns the wing to normal flight.
During a parachutal stall close to the ground it is important to judge
whether there is sufficient height for the wing to recover from this
oscillation. In this case, a (hard) landing in parachutal stall is preferable
to landing while the wing is still in pitching forwards or backwards.

Cravats

If a part of the wing is so tangled in the lines that it cannot free itself
(possibly after a collapse), it is referred to as a cravat. This occurrence
cannot be discounted on any model of paraglider.
In the case of a cravat, we recommend the following:
1. Brake on the opposite side: In the same way as during an asymmet-
ric collapse, the wing will try to turn in the direction of the cravatted
side. If the pilot does not use the opposite brake (on the open side),
then the rotation of the wing can quickly turn into a locked-in spiral
dive which either requires great effort or in some cases it is actually
impossible to exit. It is essential to prevent this rotation.
2. Open the cravat by pumping the brake:
on the tangled side may release the cravat. A timid pull of the brake
rarely works.
3. Pull the stabilo line: If a pull of the brake line is unsuccessful, pulling
the stabilo line may work.
4. Collapse the cravatted side: Collapsing the tangled side by pulling
the A-risers may be effective.
5. Full stall: A pilot who has mastered the full stall manoeuvre has an
effective method of releasing a cravat.
6. Parachute: Throw your reserve parachute without delay if you have
lost control of your wing and you are unsure whether you have suffi-
cient height for further recovery attempts. If possible, stabilise the
wing by using opposite brake until the parachute is fully open.
_61 _EN
!
Please note: if the
brakes are pulled for
longer than a quick
tug, the wing will go
into a full stall!
A hearty pull of the brake
!
Many pilots hesitate
too long to throw
their parachutes or
they fail to use it
completely. Utilising
your rescue para-
chute is preferable
to being under an
uncontrollable wing.