AIRTRONICS SD-10G Operating Manual page 126

glid Flight Mode menu
Landing Differential
The Landing Differential function allows you to program Aileron Differential (in this case, referred to as Landing Differential)
separately that operates only when the flaps are deployed. This allows you to program Aileron Differential (using the AI-DIFF
menu) for any Flight Mode, then program a separate Landing Differential for use only in the Flight Mode you use for landing when
the flaps are deployed. When the flaps are deployed, the amount of Landing Differential smoothly increases or decreases based
on flap travel.
The Landing Differential function allows you change the ratio of the Up to Down movement of each aileron. For example, many
aircraft exhibit a yaw tendency when the ailerons are used. This can affect any aircraft, and is common in sailplanes, especially
when a lot of aileron control throw is used. The Landing Differential function can be used to eliminate the yaw tendency by adding
more movement to the upward moving aileron than the downward moving aileron. For example, if your aircraft tends to yaw
during aileron turns, you can adjust the Landing Differential to make the aircraft turn more axially, which requires less use of the
rudder to compensate. The Landing Differential function can be programmed separately for each of the five Flight Modes, but
only operates when the flaps are deployed.
Programming F-MODE
Transmitter F-MODE refers to the Flight Mode that the transmitter is currently operating in. Programming F-MODE refers
to the Flight Mode that you would like to change the programming for.
IMPORTANT The Landing Differential function operates only when the flaps are deployed. The Landing Differential function
will always override the Aileron Differential function in the same Flight Mode when the Landing Differential Function is Activated
and the flaps are deployed, either using the flap control stick or if you've moved the flap function to a three-position switch. For
example, if you've programmed Aileron Differential in Flight Mode 2 (Launch) and you Activate and program Landing Differential
in Flight Mode 2 (Launch), when the flaps are up, the Aileron Differential settings will be effective, however, when you deploy
the flaps the Landing Differential settings will become effective and override the Aileron Differential settings.
Choosing the Flight Mode
1) Press the Navigation Pad 56 to highlight LANDING, then press the ENTER key to display the LANDING menu. The cursor
will default to the FLAP FREEZE POINT sub-menu.
2) Press the Navigation Pad 6 to highlight LANDING DIFF, then press the
ENTER key to display the LANDING DIFF menu. The cursor will default
to ACT/INH>ACT.
3) Press the F-MODE key to choose the F-MODE number you would like to program the Landing Differential function for.
Choose from N, 1, 2, 3, or 4. The LAND (4) display will change, indicating which Flight Mode you are programming the
Landing Differential function for.
Although the Landing Differential function can be programmed for use in any Flight Mode, it is intended to be used only
during landing and will only operate when the flaps are deployed, so we suggest choosing the Flight Mode that you have
designated for landing.
In the default configuration, when the flap control stick is pulled back, Flight Mode 4 (Land) becomes Active. In this
situation, we suggest programming the Aileron Differential setting that you want to use for landing in Flight Mode 4 (Land)
in the AI-DIFF menu and Inhibiting the Landing Differential function in Flight Mode 4 (Land). Programming the Landing Differential
setting will typically be used only if you move Flight Mode 4 (Land) from the flap control stick onto a three-position switch.
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Transmitter F-MODE