Ozone Alpina 3, Руководство пользователя

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INCIDENTS IN FLIGHT
EN
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Deflations
Due to the flexible form of a paraglider, turbulence may cause a portion of the wing suddenly to collapse.
This can be anything from a small 30% (asymmetric) collapse to a complete (symmetric) collapse.
If you have a collapse, the first thing to do is to control your direction. You should fly away from the ground
or obstacles and other pilots. Asymmetric collapses should be controlled by weight shifting away from the
collapse and applying enough brake to control your direction. This action alone will be enough for a full
recovery of the wing most of the time.
Once a glider is deflated it is effectively a smaller wing, so the wing loading and stall speed are higher. This
means the glider will spin or stall with less brake input than normal. In your efforts to stop the glider turning
towards the collapsed side of the wing you must be very careful not to stall the side of the wing that is still
flying. If you are unable to stop the glider turning without exceeding the stall point then allow the glider to
turn whilst you reinflate the collapse.
If you have a deflation which does not spontaneously reinflate, make a long smooth progressive pump
on the deflated side. This pumping action should take about 1-2 seconds per pump. Pumping too short
and fast will not reinflate the wing and pumping too slow might take the glider close to, or beyond, the
stall point.
Symmetrical collapses reinflate without pilot input, however 15 to 20cm of brake applied symmetrically will
speed the process. After a symmetric collapse always consider your airspeed. Make sure the glider is not
in parachutal stall before making any further inputs.
If your Alpina 3 collapses in accelerated flight, immediately release the accelerator and manage the
collapse using the methods described above.
Cravats
If the tip of your wing gets stuck in the lines, this is called a ‘cravat’. This can make your glider go into a
spiral, which is difficult to control. The first solution to get out of this situation is to stabilise the glider into
normal flight, i.e get control of your direction and then use strong deep pumps of the brake on the cravated
side. When doing so it is important to lean away from the cravat otherwise you risk spinning or deepening
the spiral. The aim is to empty the air out of the wing tip, but without spinning. Correctly done, this action
will clear the cravat quickly and is the most efficient and effective method. You can also try pulling on the
the stabilo line (CR4 - outside line on the C riser) to free small stubborn wing wing tip cravats. Whichever
method you use, be careful with any brake inputs as you may stall the opposite wing.
If it is a very large cravat and the above options have not worked then a full stall is the next option. Only
attempt this if you have enough altitude and you know what you are doing. Remember if the rotation is
accelerating and you are unable to control it, throw your reserve parachute immediately whilst you still
have enough altitude.
Deep Stall / Parachutal Stall
It is possible for gliders to enter a state of parachutal stall. This can be caused by several situations
including; a very slow release from a B-line stall; flying the glider when wet; or after a front/symmetric
deflation. The glider often looks as though it has recovered properly but carries on descending vertically
without full forward motion. This situation is called ‘deep stall’ or ‘parachutal stall’.
It is unlikely to happen on any Ozone glider, but should it do so your first reaction should be to fully raise
both hands. This normally allows the glider to return to normal flight but If nothing happens after a few
seconds, reach up and push the A-risers forwards or apply the speed bar to encourage the wing to regain
normal flight. Ensure the glider has returned to normal flight (check your airspeed) before you use the
brakes again.
Do not fly in rain, doing so significantly increases the likelihood of parachutal stalls occurring. To reduce
the chance of stalling in rain avoid using deep brake movements or Big Ears. Find a safe area to land and
using the speed bar, maintain a good airspeed at all times.
IMPORTANT
Only a few cms of
input from your
brakes can maintain
your wing in the stall.
Always release your
wraps if you have
taken them!
IMPORTANT
A bad preparation
on launch, aerobatic
flying, flying a wing of
too high a level or in
conditions too strong
for your ability, are
the main causes of
cravats.
IMPORTANT
Never fly in the rain or
with a wet glider.
WARNING
Uncoordinated
wingovers can lead
to large asymmetric
collapses and cravats,
therefore they should
never be executed
near the ground.