ACRO ADVANCE MENU FUNCTIONS:
Aircraft wing types (ACRO/GLID):
There are 3 basic wing types in aircraft models:
• Simple. Model uses one aileron servo (or multiple servos on a Y-harness into a single receiver channel) and has a tail.
This is the default setup and requires no specialized wing programming.
• Twin Aileron Servos. Model uses 2 aileron servos and has a tail. see Twin Aileron Servos.
• Tail-less model (flying wing). Model uses 2 wing servos working together to create both roll and pitch control.
see ELEVON.
Twin Aileron Servos (with a tail) (ACRO/GLID): Many current generation models use two aileron servos, plugged into two
separate receiver channels. (If your model is a flying wing without separate elevators, see ELEVON, p. 49.)
Benefits:
• Ability to adjust each servo's center and end points for perfectly matched travel.
• Redundancy, for example in case of a servo failure or mid-air collision.
• Ease of assembly and more torque per surface by not requiring torque rods for a single servo to drive 2 surfaces.
• Having more up aileron travel than down travel for straighter rolls – aileron differential. (see glossary for definition.)
• Using the two ailerons not only as ailerons but also as flaps, in which case they are called flaperons.
• Set a negative percentage to reverse the operation of one of the servos.
Options:
• 5-channel receiver. Set up AIL-2 (see p. 48) prior to continuing with FLAPERON or AIL-DIFF.
• FLAPERON:
• Uses CH6 for the second servo (see AIL-2 to use CH5.)
• Allows flap action as well as aileron action from the ailerons.
• Provides FLAP-TRIM function to adjust the neutral point of the flaperons for level flight.
• Also allows aileron differential in its own programming (instead of activating AIL-DIFF).
• Aileron Differential (AIL-DIFF):
• Uses CH7 for the 2nd servo (see AIL-2 to use CH5.)
• Leaves CH5 & CH6 free for flap operation, such as flaperon and flap action together, in AIRBRAKE. (see p. 56).
• Allows for more up aileron travel than down for straighter rolls.
You will need to choose which is the better choice for your model's setup B FLAPERON or AIL-DIFF. If you need the ailerons
to also operate as flaps, you most likely want to use FLAPERON. If your model has 2 aileron servos and flaps, then AIL-DIFF
is probably the easiest choice. (For details on setting up a complex aerobatic plane, such as one with 4 wing servos using
full span ailerons and full span flaps, as well as AIRBRAKE/crow and other features, please visit our FAQ at
www.futaba-rc.com\faq\faq-9c.html. Many other setup examples are also available at this location.)
NOTE: Only one of the three wing-type functions (FLAPERON, AIL-DIFF, and ELEVON) can be used at a time. All three
functions cannot be activated simultaneously. To activate a different wing type, the first must be deactivated.
GOAL of EXAMPLE: STEPS: INPUTS:
44
De-activate FLAPERON so that AIL-DIFF
or ELEVON can be activated.
Where next?
Open the FLAPERON function.
De-activate the function.
Close function.
for 1 second.
(If basic, again.)
to FLAPERON.
to MIX. to INH.
Set up AIL-DIFF (see p. 47) or ELEVON (see p. 49).
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