Flap System
The 10X features a three-position flap system with elevator com-
pensation. Its purpose is to allow the flaps to be deployed in two
positions normally, approximately 15 degrees down for takeoff
and 45 degrees down for landing, but certainly other positions,
including up, are available for special applications/maneuvers.
An Auto Land feature is included that will automatically retract
the flaps when the throttle is raised above a pre-programmed
throttle position, which is helpful in the case of a missed landing
attempt.
Because deploying flaps generally causes a pitch change, elevator
compensation is provided that allows two pre-set trim changes of
elevator when the flaps are deployed. The Flap System can be
activated using the three-position flap switch or it can be assigned
to flight modes.
Accessing and Utilizing the Flap System
To access the Flap System, enter Code 66 in the code number
access selection or use the direct mode method.
The screen will appear as follows:
Note: When utilizing the Flap System, it’s suggested that you
inhibit the flap lever in Code 17, Function Select. Also in Code 17
you can choose to have the flap lever act as a flap trimmer or to
be inhibited. See page 19, Code 17 Function Select, for more
information.
Setting the Flap and Elevator Positions
To adjust flap and elevator to the desired position, first move the
three-position flap switch to the mid or land position. Adjust the
values of the selected position until the flaps and elevator are
where you want them to be. The range is adjustable from +/-
0–125%.
Note: The use of travel adjust and sub-trim can be used if a
larger flap servo stroke is desired. Sub-trim must be used if a
large stroke is needed so as to not overdrive the flap servo past its
limits. This is necessary as the neutral or up position of the flaps
is the centered position of the servo, so unless sub-trim is used to
redefine the servos center, increasing travel adjust could over-
drive the flap servo.
Flight Mode Select
The mid or land flap and elevator position can be programmed to
automatically deploy in any of the five flight modes. With Flight
Mode selected in Code 17, Function Select, touch the PAGE key
in Code 66, Flap System, until the following screen appears:
Note: If Flight Mode is not activated in Code 17, it will be
impossible to access this screen.
Touch the SEL key below each Flight Mode to select the desired
flap position function. Four choices are available:
0
= Flap and elevator are in the normal neutral position
and the three-position switch has no effect.
FLAP
= The three-position flap switch is active.
MID
= The flap and elevator are in the mid position and the
three-position switch has no effect.
LAND = The flap and elevator are in the land position and the
three-position switch has no effect.
Select the desired function for each Flight Mode. If you choose
for the three-position flap switch to be functional in all Flight
Modes, then program FLAP under each Flight Mode.
Auto Land
To store an Auto Land stick position, move the throttle stick to
the desired position and touch STORE below the AUTO LAND
on the left side of the screen. The stored position will be dis-
played and the flaps can only be deployed below that pre-set
throttle stick position. If the flaps are deployed at low throttle and
the throttle is raised above the pre-set position (missed landing
approach), the flaps will be automatically raised to their up posi-
tion.
Important Note: On some aircraft, lowering the flaps also
reduces the stall speed (the minimum flight speed at which the
aircraft can maintain flight). Raising the flaps at these slow
speeds can cause a stall, thus resulting in a crash. It’s important
to test the Auto Land feature at a higher altitude, throttling up to
see the effect of going from full flaps to raised flaps at slow
speeds and seeing if any stall issues are encountered. The addi-
tional altitude will give you time to recover should a stall occur.
10X MANUAL Airplane
53
8.18
Code 66
