SCHEMPP-HIRTH FLUGZEUGBAU GmbH., KIRCHHEIM/TECK
Ventus-2cM
FLIGHT MANUAL
Approach (ctd.)
b) Propeller
extended
(only with ignition OFF and in emergency case permitted)
With propeller extended (ignition OFF), the "Ventus-2cM" can be landed in the
same manner as in "clean" configuration (propeller retracted).
Approach speed : 115 km/h [62 kt, 72 mph] (without waterballast)
120 km/h [64 kt, 75 mph] (with waterballast)
On approach, however, it must be taken into account that the flight performance
has deteriorated due to the extended propeller:
Wing span
18 m
All-up mass
525 kg
1157 lb
Approach speed
115 km/h
62 kt
72 mph
Rate of descent approx.
2.75 m/s
541 fpm
L/D approx.
11.6
The reduced performance, however, requires significant more altitude to conduct
approaches with the same techniques as in "clean" configuration.
WARNING
1.) Be cautious when extending the airbrakes! Due to the additional
drag of the extended propeller, more forward stick must be applied
for maintaining the above approach speeds.
2.) When stalling with extended propeller with engine idling or with
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.
NOTE:
Approach and landing are performed with propeller retracted as
standard
procedure.
November
2003
LBA-app.
Revision --
4.5.4.3
Summary of Contents for Ventus-2cM
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