Schempp-Hirth Flugzeugbau Ventus-3T Sport, Руководство по эксплуатации самолета, Страница: 90 / 177

SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK
Ventus-3T „Sport“ FLIGHT MANUAL
April 2018 CS 22
Revision – 4.5.5.2
Slips are a very effective landing aid.
Side slips in 18 m configuration may be conducted in a straight line with up to
about 80% of the rudder travel, resulting in a yaw angle of about 40° and a
bank angle of about 15 to 25°.
Due to a control force reversal a significant amount of opposite pedal pres-
sure is required to keep the rudder displaced.
To return to level flight, (regardless of the span) apply normal opposite
controls.
Side slipping causes the ASI to read less.
Tests were performed up to 150 km/h (81 kt, 93 mph)
Warning:
Both the performance and the aerodynamic characteristics of the aircraft
are affected adversely by heavy rain or ice on the wing.
Be cautious when landing!
Increase the approach speed by at least 5 to 10 km/h (3 5 kt, 3 6 mph).
Important note:
o
In 18 m configuration and rudder displaced more than 80% of its travel,
a straight flight path cannot be maintained and the aircraft will turn in
the direction of the displaced rudder. Since the airbrakes are very
effective
and because of this behavior, side slipping is not
recommended.
o
With extended airbrakes and increased yaw angle a slow pitch down
movement arise though the stick is pulled followed by an increase of
speed. To stop this movement lessen the yaw angle by reducing the
rudder deflection or retract the airbrakes.
o
During side slip with not completely filled water ballast tanks a shift of
the water ballast can arise which can change the flight behavior.
Slips with water ballast are therefore not recommended.