F
F
L
L
I
I
G
G
H
H
T
T
M
M
A
A
N
N
U
U
A
A
L
L
Document No.:G304MS/AFM
Date of Issue: 07/14
4-16
Approved
With aft cg position stall warning usually occurs 5 km/h (3-5 KIAS,
3-6 mph) above stalling speed. Stall warning is vibration of the
sailplane and can be easily recognized. If the stick is pulled further
back, these effects become more pronounced. After reaching the
stalling speed the sailplane tends to drop the nose.
If the stick is eased firmly forward then the stall is terminated and
sailplane continues at normal flight attitude. Loss of the height
during the stall is 30-35 m. If the airbrakes are extended than the
loss is 50 m.
Flying with water ballast, MTOW = 600 kg
With medium and forward C.G. positions you can fly at the minimal
steady airspeed with elevator control reaching its stop. The
controllability is adequate right up to the point where the longitudinal
control reaches its rear stop With the elevator fully deflected, the
angle of attack cannot be increased any more.
The sailplane continues to fly in straight flight with increased rate of
descent. This situation shows up by "spongy" controls. Slip and
bank can be controlled.
If the stick is eased firmly forward than the stall is terminated and
sailplane continues at normal flight attitude. Loss of the height
during the stall is 30-35 m. If the airbrakes are extended than the
loss is 50 m.
Sideslip of 5~ 10° has no influence to the above described behavior.
Powerplant extended
As the propeller used is mainly pitched for good climb (rather than
for high cruise), the speed attained in level flight at 6200 RPM is just
about 150 km/h, (80 KIAS, 88 mph) with flaps set at “0”.
At this speed the sailplane shows a stable behavior and is easy to
control.
Flown in a shallow drive, the maximum permitted engine speed of
6800 RPM must not be exceeded!
