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The Alpina 3 shows little tendency to remain stable in a spiral dive, however some parameters could
interfere with its behaviour. These might include: wrong chest strap settings, total weight in flight outside
of the certified weight range, or being in a very deep spiral at a very high sink rate >14m/s. You should
always be prepared to pilot the wing out of such a spiral dive. To do so, smoothly use opposite weight
shift and apply enough outside brake to stop the wing from spiralling, the glider will then 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.
Active C Riser Control
Whilst gliding it is possible to pilot the wing with the C risers, this gives an improved feel and control over
the wing enabling you to fly actively without using the brakes. Using brakes whilst accelerated causes drag
which is not only inefficient but it also reduces the inherent stability of the profile - using the brakes whilst
accelerated can actually lead to a collapse. Using the C risers increases the angle of attack more evenly
across the chord and does not weaken the profile as much as using the brakes. The direct feel allows you
to stop collapses before they happen and maintain higher speeds and higher levels of efficiency through
turbulence.
To fly with the C risers, keep hold of your brake handles (remove any wraps) and take hold of the C risers.
With the C risers you can fly actively through turbulence; If you see or feel the leading edge lose pressure,
at the same time as releasing some or all of the accelerator you can also apply pressure to the C’s, this
will help keep the nose open. Be careful to use only small inputs with the C risers, you risk stalling part or
all of the wing if you are over enthusiastic. The amount of pressure and size of the input is dependent on
the amount of turbulence/loss of pressure, but always be gentle at first. Learn the feel of the wing - how
much speed bar to release and the force required on the C’s to keep the nose open without inducing
unnecessarily large pitch movements.
The Alpina 3 is inherently stable at full speed, C riser control is very effective up to about ¾ speed,
however during the last few cms of speed bar travel C riser control on its own becomes less effective and
can lead to a collapse. When flying faster than ¾ speed, we recommend to control the pitch of the wing
actively using a combination of the speed bar and C riser input. If you feel the nose of the wing start to
collapse or pitch forward whilst accelerated the first action should be to release the speed bar impulsively
and then make any necessary C riser input, always release the speed bar first before making any C inputs.
Using the combined active speed bar/C riser control technique you will be able to maximise your speed
and efficiency whilst minimising the likelihood of collapses.
Be prepared for plenty of practice as this new method may take some time for it to become totally intuitive,
efficient and comfortable. This control method is suitable for gliding in good ‘normal’ air, it does not
replace proper active flying with the brakes in strong turbulent conditions. If you are unsure about the air
return the glider to trim speed, release the C risers and fly the glider actively with the brakes.
IMPORTANT
Never apply the brakes
whilst using the speed
system - it makes the
wing more prone to
collapse.
Summary of Contents for Alpina 3
Page 1: ...Pilots Manual...
Page 2: ......
Page 20: ...1258 Route de Grasse Le Bar sur Loup 06620 France...