Aircraft Operating Instructions (AOI)
Type:
CT
Series:
CTLS
LSA
Page: 4-15
AU 010 11000
Revision No. 6
Date: 05 Feb 2009
4.11. Stall
Stalling speed for the CTLS with a weight of 600 kg (1320 lbs) is 72 km/h (39 kcas)
with the flaps set at 35°, 77 km/h (42 kcas) with the flaps set at 0° and 81 km/h (44
kcas) with flaps set at -6°. Approaching stall is indicated by a sluggishness around
the vertical axis. The controls become "soft" about 5 km/h (3 kts) above stall speed.
Release the aft pressure on the stick to increase airspeed. Close to stall the aircraft
can only be controlled by rudder and stabilizer. In a stall, the effectiveness of the
ailerons is greatly reduced.
When the nose drops during a stall, the aircraft will lose approx. 50 m (165 ft)
altitude. Thus, near the ground a safety minimum speed of approx. 115 km/h (62 kts)
should be maintained.
4.12. Approach and landing
When possible, an aircraft should land into the wind. Final approach should be flown
in a straight line extending in the direction of the runways and begun at sufficient
altitude.
Warning:
A stable final approach is important for a successful landing. If the
landing configuration is taken up in good time and at a sufficiently high
altitude, the pilot's work load may be reduced considerably. With the
aircraft flying stably it can be more easily controlled down to touch-
down. Too high approach speeds with flap changes shortly before
touch-down lead very quickly to dynamic flight conditions which are very
stressful for the pilot. If in doubt: abandon the approach and perform a
go around. This is always better than taking a chance of damaging the
aircraft due to a hard landing.
Some power (10 – 20 %) should be maintained during approach. This makes it easier
to determine that the engine is running properly and is able to provide full power, if
required. The slightly increased pressure on the empennage also has a positive
effect on controllability and control feel.
If there is a risk of carburetor icing, the carburetor heat should be pulled on during the
approach. It should, however, be pushed off in short finals so that full engine power is
available, should a go-around be necessary.
Approach the ground with constant power setting. About a meter (3 ft) above the
ground, retard the throttle completely and smoothly flare the aircraft.
A somewhat higher approach speed should be used for landings in a crosswind to
ensure that the aircraft remains controllable. In addition, it is also recommended that
the wing flaps be set at 15° or even 0° when landing in a crosswind. Be mentally
prepared to perform a missed approach-go around if needed.
During a landing with crosswind, the upwind wing should be dipped by applying
aileron against the wind and direction kept using the rudder. As the CTLS is a high-
wing airplane, there is no risk of the wing tips touching the ground. .
Warning:
Do not rely on the demonstrated wind speed data in the manual for
crosswind landings. Local conditions can lead to lower limits. For
