Section 7 Pilot’s Operating Handbook
Description of Airplane and Systems EXTRA 500
drives the flaps toward the selected position. When the actual
flap position equals the selected position, limit switches located
at the wing tracks respective the outer spindles deenergize the
flap motor. The actual flap position will be indicated by
illuminating of relevant
15° or 30° green light at the left side of
the flaps switch. When the flaps are moving, the yellow
TRANS
light illuminates. If the flaps are in UP-position, all lights are
off.
As the flaps move, an electrical circuit compares the movement
of the left and right flaps. If the flaps positions differ by 7° +/-
3°, the flap motor will be automatically switched off to prevent
excessive asymmetric conditions. This will be indicated by the
red FLAPS warning light located on the annunciator panel. This
light indicates also a failure of the complete flap control.
Note In case of the flaps are unbalanced, they rest in the position
they have reached when failing and cannot be actuated until
airplane has been in maintenance. However in this case the
aircraft can be balanced by slight aileron and/or rudder
input. Refer to Section 3, Emergency Procedures.
Setting the flaps will cause a decrease of airspeed and a
moderate nose down moment. The stall speeds for 2130 kg
(4696 lbs), corresponding to the different flap positions, are
shown in the following table.
Wing Flap Position Stall Speed (KIAS)
Wing Flaps UP 80
Wing Flaps 15° 67
Wing Flaps 30° 58
Important Before opening cabin door, the flaps should be moved in to
prevent damage.
7-16 26. January 2011
To Next Page
Loading...
