Maintenance and Inspection Procedures Manual
Type:
CT
Series:
CTLS
LSA
Page: 4-48
AF 04800001
Revision No. 3
Date: 14 Sep 2008
4.3.2 Flaps
The flaps are driven by an electrical spindle motor and are activated via the flap control in the lower
section of the instrument panel. The desired flap setting is selected with a torque switch. The position
indicator will flash as long as the flaps are moving to the desired setting. Once the desired setting has
been reached, the position will be constantly illuminated. The flaps may be set at any of the following
positions: –12° (-6° for USA registered aircraft), +0°, +15°, +30°, +35°.
The spindle motor is integrated into the mixer behind the main frame in the aircraft baggage
compartment. It influences the controls mixer, whence the flaps are activated via push rods. Both flaps
are directly attached to a torque tube in the fuselage, thus ensuring that they are always deflected
symmetrically.
The flap servo has an internal load-limiting device which prevents the extension of the flaps at too high
airspeeds without causing sustainable damage to the structure. Should the indicator blink constantly
when extending the flaps, airspeed should be reduced. If the flaps then extend, the internal load-limiting
device was in operation. If extension speed is below the maximum speed for flap extension as given in
the handbook, the next Flight Design service station should be contacted.
The flap control circuit breaker is to be found directly adjacent to the flap controls. It will pop if the flap
servo is continuously over-loaded. As it is a thermal circuit breaker, it can take some time before it can be
pushed back in.
Note:
The CTLS can be safely landed in any flap configuration.
Control forces during go-around in the landing configuration have been demonstrated to be
acceptable.
4.3.2.1 Tools
Required
Wrench
10
1
pcs
Wrench
7
1
pcs
Wrench
8
1
pcs
Hex-nut
wrench
3
1
pcs
Hex-nut
wrench
4
1
pcs
Hex-nut
wrench
5
1
pcs
Electronic
level
1
pcs
Screwdriver
5
mm
1
pcs
Flexible
hex-head
screwdriver
5
1
pcs
Screw
driver
with
header
10
1
pcs
4.3.2.2 Materials
Required
С
9993247C Bonding liquid, middle strength Loctite 243
С
9993247B Loctite Glue 480
С
9993513 Multipurpose plastic grease LITOL-24M
ТУ
0254-015-00148820-99 (Retinax EP 2. Alvania
EP-2 (SHELL); Alvania Grease R3 (Petroleum Co, Ltd); Mobilgrease MP, Mobilux 3 (Mobil Oil Corp.);
Energrease LS 3 (British Petroleum Co.); Beacom 3 (Esso))
C9996334, Self-locking nut DIN 985-M6, regular
6 pcs
C9996333, Self-locking nut DIN 985-M5, regular
3 pcs
С
9997022 Spherical Bearing EGLM
10 pcs
KA2010008
Bush
10
pcs
КВ
6030305
Bush
2
pcs
КА
2040013
Pin
2
pcs
С
9997198B Miniature switch
2 pcs