Sailplane Section 16
TRVL. ADJ – Travel Adjust
Travel Adjust allows from 0-150% (0 degrees to 60
degrees) independent adjustment of servo travel for
each direction of servo travel. For more information on
Servo Travel and Mechanical Advantage please refer to
the Sub Trim Usage and Mechanical Advantage article
contained in the General Section.
1. Highlight and select TRVL ADJ. in the FUNC.LIST to
obtain the Travel Adjust display.
2. Use the Selector to highlight and select each channel
and adjust the travel in each direction by rotating the
Selector. The direction of travel is changed by
moving the stick/switch/lever back and forth.
Elevator-to-Flap Mix
Elevator-to-flap mix is normally used to give several
degrees of down flap when up elevator is applied. This
gives more pitch authority than would elevator alone,
and is commonly used for slope racers to improve high-
speed turns and in thermal sailplanes to allow
increased maneuverability for tight thermal turns. An
offset is available that allows the programming of snap-
flaps. With snap-flaps, no flap mixing occurs during
small to medium up elevator inputs, but at about 80%
up elevator, the flaps are mixed to give down flaps,
causing greater up pitch authority. For more detail on
setting up snap-flaps, see step #25 in the glider setup
guide following the glider section of this manual.
To access Elevator-to-flap mix, in Function Mode list,
rotate the Selector until ELE
FLP M is highlighted.
Press the Selector to access the Elevator-to-Flap mix
menu. Note that two elevator-to-flap mix values are
available, Pos0 and Pos1 and the elevator-to-flap
values can be independently adjusted up and down.
Also the offset (the stick position where the mixing
changes from up to down) can be adjusted. This offset
allows the programming of snap-flaps, a common
sailplane function that gives greater full up elevator
pitch authority for tighter turns. If you choose to
program snap-flaps, the offset adjustment range is -200
to +200. Negative values move the offset in the up
elevator direction. Switches are available at the bottom
of the screen that allow the selection of Pos0 or Pos1.
Note: Position 1 always has priority over position 0.
Press the LIST button to return to the Function Mode
screen.
BTF Mix (Butterfly) switch
MOT Gear (Motor) switch
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