Schempp-Hirth Flugzeugbau Ventus-3T Sport, Руководство по эксплуатации самолета, Страница: 91 / 177

SCHEMPP-HIRTH FLUGZEUGBAU GmbH, KIRCHHEIM/TECK
Ventus-3T „Sport“ FLIGHT MANUAL
April 2018 CS 22
Revision – 4.5.5.3
Power plant extended (only with ignition OFF and in emergency case
permitted)
Landings with extended power plant (ignition OFF), can be done in the same
manner as in "clean" configuration (power plant retracted).
Approach speed : 110 km/h [59 kt, 68 mph] (without waterballast)
120 km/h [64 kt, 75 mph] (with waterballast)
On approach, however, it must be taken into account that the flight
performances are deteriorated due to the extended power plant.
Span
[m]
All-up mass
[kg]
Sink rate
[m/s]
Speed
[km/h]
Glide
slope
18 600 ca. 1.8 m/s 120 ca. 19
The reduced performance, however, is sufficient to conduct approaches with
the same techniques as in "clean" configuration (power plant retracted).
Warning:
Be cautious when extending the airbrakes. Due to the additional drag of
the extended power plant, more forward stick must be applied to maintain
the above mentioned approach speeds.
When stalling with extended power plant and ignition off the turbulent
airflow produced by the propeller superimposes the vibration in the
controls, so that in this case a stall warning is not noticeable.