AirDesign SUSI 3, Manual And Service Book

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glider is collapsed and the glider can stall with less brake input.
If you experience a big collapse while accelerated release the speed-bar immediately.
To assist in the reopening of a frontal collapse the pilot should pull both brakes equally at the
same time. This also reduces the dive after the glider reopens.
NOTE: Pulling too much brake during a frontal collapse recovery can stall the glider or cause
the glider to revert from the frontal collapse directly into a deep-stall.
k. Reopening a cravat
In extreme conditions and rare cases it is possible that the wing tip(s) can become trapped
between the lines. In general, this would happen only after a big uncontrolled collapse or
during extreme manoeuvres.
If this cravat occurs, in the first instance use the techniques described for releasing asymmetric
collapses.
If it fails to release, take hold of the stabilo line and pull hard towards yourself until the
trapped section of the wing is released.
At low altitude it is important to stabilise the rotation, if any, and if necessary use the reserve
(rescue) if this is not possible.
l. Negative spin
We recommend that this manoeuvre is only carried out during a safety training course over
water and under supervision. The intention in this situation is for a pilot to discover the point-
of-spin and to control it. This demands a high level of experience and skill.
The longer the time between the glider entering a spin and the pilot attempting to recover, the
more chance there is of it becoming out of control.
As the glider surges forward slow it down with the brakes to avoid the possibility of an
asymmetric collapse. Always wait for the glider to be in front of you or above you when
releasing a fully deployed spin - never release the spin while the wing is behind you because
the glider would dive very far in front of you or even underneath.
m. Full-stall – Deep/Parachutal Stall
The available brake travel before stalling the wing depends on the size and the loading. For the
SuSi3 16 is a minimum of 55cm. Those numbers are just a rough indication. (The publication of
the brake travel is claimed by the EN 926-2.)
It would be dangerous to use the brake travel according to those numbers, because it is not
practicable to measure the brake travel during flight, and in turbulences the stall might occur
with less brake travel. If you want to use the whole brake travel of your glider safely, it is
necessary to do intended spins and full stalls to get a feeling for the stall behaviour
–
preferable during a safety training course.
NOTE:
IN GENERAL THE BRAKE TRAVEL BECOMES SHORTER DURING A SIDE COLLAPSE (WHEN TRYING
TO STABILIZE ON THE OPEN SIDE)!