Stalling behaviour
The stall warning occurs at 60-70 km/h (32-38kt), depending upon wing loading, and
is
indicated by strong vibration of the horizontal tail unit.
When the
control stick
is
pulled hard back the glider settles into a controllable flight
attitude
in
which, with aileron and rudder, turns of
up
to
20
° bank
can
be
flown.
When the control stick
is
released, the glider immediately returns to the normal flight
attitude. When the stick
is
pushed forward, the glider tips nose down, and the bank
can
be
controlled with the aileron.
Flight
at
high speeds
The glider does not have a tendency to flutter
in
the permitted speed range. Starting
from
170 km/h (92kt), maximum permitted deflections of
all
flying controls are reduced
gradual to
be
1/3 of full deflection at maximum permitted speed .
In
a
45
° dive at maximum flying weight, with fully open airbrakes, the maximum never
exceed speed (VNE)
is
not exceeded.
Approach
and
landing
The approach can
be
flown at 90km/h (50kt) normally.
The airbrakes are sufficiently powerful for steep approaches to
be
made.
The airbrakes give some nose-down trim,
so
the glider will automatically maintain the
pre-set trimmed speed when the brakes are opened.
Sideslip
The sideslip
is
easily controllable and can
be
used
as
an
additional landing aid.
However,
it
is
effective only with a large sideslip angle and should
be
terminated at
sufficient height.
Note: Landing preparation: - at the correct position, at a height of approx.
150 m
(500ft), airspeed of
90
km/h (50kt), undercarriage down and locked.
Flight in rain
Past experience with wet or slightly frozen wing surfaces indicates that there
is
no
noticeable degradation of the flight characteristics. With a thick layer
on
the wing
surface the
stalling speed increases
by
approximately 5 km/h (3kt) and the stalling and
landing behaviour remain unchanged. Increase the approach speed
by
approx.
10
km/h
(Skt)
.
Aerobatics
Certified figures and entry velocities:
Loops Forbidden
Turn
Lazy Eight
Chandelle
Spin:
180 km/h (97kt)
120 km/h (64kt)
150 km/h
(81
kt)
After a slow complete stall, cross the rudder and aileron controls to full deflection and
keep the elevator
pulled back. Centralising or releasing the controls stops the spin. The
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