Aircraft Operating Instructions (AOI)
Type:
CT
Series:
CTLS
LSA
Page: 4-12
AU 010 11000
Revision No. 6
Date: 05 Feb 2009
should be brought to mind when taking off from a short runway with obstacles.
Wing flap settings may be adjusted once a safe altitude of 50 m (150 ft) has been
reached. The CTLS climbs at a better rate and a better angle with the flaps retracted
to 0°. It is recommended that once an airspeed of 120 km/h (67 kts) is exceeded to
retract the flaps from 15° to 0°. The climb can then be continued at 132 km/h (73 kts).
When this speed is exceeded, the flaps can be further adjusted to -6°. The aircraft
can then climb further and efficiently at 140 km/h (78 kts).
Warning:
When adjusting the flaps to the negative position, the drag and lift co-
efficient of the airfoil are reduced for the same angle of incidence. The
aircraft must thus be accelerated during flap retraction. As a result,
climb rate drops initially before it then picks up again. When retracting
the flaps in horizontal flight, the aircraft can sink slightly. Therefore, the
flaps should never be moved in the negative direction near the ground!
