Ozone UltraLite, Pilot'S Manual

Page: 9 / 36

To do so smoothly use opposite weight shift and apply a small amount of outside
brake and the glider will start to resume normal flight. Never attempt to recover from a
spiral with hard or quick opposite inputs as this will result in an aggressive climb and
surge.
IMPORTANT:
Spiral dives with sink rates over 8 m/s are possible, but should
be avoided. They are dangerous and put unnecessary strain on the glider.
Spiral dives cause disorientation and need time and height to recover. Do not
perform this manoeuvre near the ground.
INCIDENTS
Deep Stall / Parachutal stall
It is possible for gliders to resume their normal shape on a very slow release of the B-
lines, but carry on descending vertically and without full forward motion. This situation
is called ‘deep stall’ or ‘parachutal stall’.
It is highly unlikely to happen on any OZONE glider, but should it happen, your first
reaction should be to fully raise both brakes and the glider should return to normal
flight. If nothing happens after a few seconds, reach up and push the A-risers forwards
or apply the speeds bar to regain normal flight.
Ensure the glider has returned to normal flight (check your airspeed) before you use
the brakes again.
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!
Deflations
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, or at least not to fly into them...
Asymmetrical collapses can be controlled by weight shifting away from the collapse
and applying a small amount of brake to control your direction. This act will most of
the time be enough for a full recovery of the wing.
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 do have a deflation which does not spontaneously reinflate, make a long smooth
progressive pump on the deflated side. This pumping action should take about 2
seconds per pump. Pumping too short and fast will not reinflate the wing and pumping
too slow might take the glider too close, or beyond, the stall point.
Symmetrical collapses reinflate without pilot input, however 15 to 20cm of brake
applied symmetrically will speed the process.
If your Ultralite collapses in accelerated flight, immediately release the accelerator to
slow down to trim speed and after a 90 deg turn the canopy will reinflate and return to
normal flight.
IMPORTANT: No pilot and no glider are immune to collapses however active
flying will virtually eliminate any tendency to collapse. When the conditions are
turbulent, be more active and anticipate the movements of your wing. Always
be aware of your altitude and do not over-react. We advice you to keep hold of
your brakes. Do not fly in turbulent conditions.
Cravats
When the tip of your wing gets stuck in the lines, this is called a ‘cravat’. This can
make your glider go into a rotation which is difficult to control. The first solution to
get out of this situation is to pull down the stabilo line (red line on the B riser), while
controlling your direction, you must be careful with any brake inputs not to stall the
opposite wing.
If this doesn’t work, a full stall is the only other option. This shouldn’t be done unless
you have been taught how to do it and can only be done with a large amount of
altitude. Remember if the rotation is accelerating and you are unable to control it, you
should use your reserve whilst you still have enough altitude.
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.
ACROBATICFLYING
Towing
The ULTRALITE may be tow-launched. It is the pilot’s responsibility to use suitable
harness attachments and release mechanisms and to ensure that they are correctly
trained on the equipment and system employed. All tow pilots should be qualified to
tow, use a qualified tow operator with proper, certified equipment, and make sure all
towing regulations are observed.
MATERIALS
All OZONE gliders are made from the highest quality materials available. Your Ozone
ULTRALITE is constructed from:
Upper-surface
Hybrid
7
E
N
G
LI
S
H