Specific Characteristics Of The Krisis Karre System; Reserve Parachute - Kortel Design Krisis Karré 100 Mode D'emploi

Rev. 5
The Krisis Karre is designed in such a way that its forward movement, that is
significantly responsible for a low sink rate, can be used to steer into a specific
direction so that obstacles can be avoided. However, in the case of insuffient altitude,
only the ground should be kept in view and one should prepare for landing.
8. Specific characteristics of the Krisis Karre rescue system

8.1 Reserve parachute

The Krisis Karre is a steerable rescue system, but its constructive characteristics are
significantly different from those of Rogallo reserve systems.
The Krisis Karre has been designed to feature long lines since the most likely reason
for a failed opening of the reserve parachute is that it becomes tangled with the main
glider. Rescue systems with short lines are particularly prone to this kind of failed
openings.
The Krisis Karre does without pre-deceleration. Thanks to a special shape and trim of
the canopy, the
unnecessary and the system remains very simple in operation, while being a lot less
error-prone. The trim is adjusted so that there is a short stall phase immediately after
opening during which rotational energy is instantly reduced in an emergency situation.
Subsequently, the Krisis Karre automatically switches over to a slight, very stable and
pendulum-free forward movement.
The lines of the Krisis Karre are clearly asymmetric in legth so that the base panels do
not exactly overlap as usual when packing the canopy but are a bit staggered. This
fanned-out pattern allows for better air inflow after the release and thus leads to an
increased opening speed, particularly if the pilot is rotating at high speed in an
emergency situation.
The Krisis Karre features two separate suspension points, each of them connected to
two risers. One of the risers is equipped with a brake loop that can be used to steer
the reserve parachute.
The Krisis Karre reserve (not the tandem version) possesses a safety connection (red)
that connects the suspension points with each other. In the case of a failure or faulty
installation on the harness of one of the suspension points, the reserve parachute still
remains at least partly functional. The safety connection is no mandatory design
specification and could therefore also be dismounted without losing the type
certificate. You might want to remove the safety connection, e.g., if installation on a
specific harness is not possible otherwise. Moreover, the safety connection makes it
easier to untangle twisted lines (e.g., after rescue system deployment and inadvertent
separation from the harness whereby the risers are twisted).
We want to explicitly point out that an additional safety and backup feature is lost with
the removal of the safety connection!
A Coloured marking at the front canopy corner of the Krisis Karre indicate the flight
direction. When packing the reserve system, the markings also serve as helpful
reference points.
typical pre-deceleration of steerable
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reserve parachutes is