M A N U A L
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U - T U R N
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B L A C K O U T +
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IMPORTAnT! Trimming of Lines
Due to the extremely high pressure occurring in the course of ACRO manoeuvers and the
straining of lines resulting thereof, we tested these stresses in extreme challenges and calcu-
lated them into the delivery state of the U-Turn BLACKOUT PLUS. This means that all U-TURN
ACRO gliders are trimmed too quickly in their delivery state. It takes high straining like in spiral
dives or tumblings (please keep in mind for both halves of the wing to be eagerly, or rather sym-
metrically, strained) in order to stretch the main lines to their ideal trim! No sooner than after
this stretching of the lines, the full dynamics of the gliders are available!!!
nOTE:
After 150 hours of operation, the complete set of lines has to be
renewed at the latest.
Stabilo-Line-Security-Function
Even top pilots aren’t safe from cravats, especially not when
they practice new routines or max out existint choreographies.
Most cravats ended with the emergency parachute, since acro
flying happens with high acceleration forces that are even
higher, the smaller the surface of a glider. For a pilot exposed
to such forces, it’s not easy - irrespective of their abilities and
level of training - to find the Stabilo-line quickly. Releasing the
cravat isn’t too much of a problem in most cases, the chal-
lenge however is finding and holding onto the Stabilo-line in
a swift fashion. With the “Stabilo Line Security Function”, this
will be a lot easier: The SLSF is a roll through which the Sta-
bilo-line is pulled and fixed at the B-strap with a rubber line.
In case of cravats, this enables the pilot to pull the Stabilo-line
quickly by drawing the rubber line close to the handle and
consequently release the cravat.