Multiple Servos For One Control Type And Other Set-Up Options; What About Twin Elevator Servos? What Are Ailevators?; What Are Elevons?; What About V-Tail Programming? - FUTABA 9Z WC2 Getting To Know Manual

C. Multiple Servos for One Control Type and Other Set-up Options
What are twin aileron servos, aileron differential and flaperons? When do I use which?
When a manufacturer or modeler talks about twin aileron servos, they usually mean the model has
one servo operating each aileron and each is plugged into a separate channel on the receiver. Twin
aileron servos allow the modeler more precise aileron control. They also provide the option of
flaperons (FPN) (the coordinated movement of both aileron servos as flaps) and aileron differential
(ADF) (the ability to have a lesser amount of down travel aileron than up travel aileron to help keep
rolls straight.)
The 9Z flaperon programming gives aileron with differential (ADF) if desired, and ailerons as flaps,
along with the option to trim the two ailerons' up or down travel together as a flap trim. If you don't
want flap action from the two ailerons, then aileron differential (ADF) is a simpler set-up.

What about twin elevator servos? What are ailevators?

Ailevators (ALV) is programming specifically designed to command twin elevator servos. Basically, it
is "setting up twin elevator servos made easy". It assigns the second elevator servo to channel 5,
turning off other control of channel 5, and has channel 5 always obey the same commands as channel 2
(elevator). In addition, it is called ailevators (ALV) because it also has programming to let the elevator
servos operate in unison with the ailerons to increase roll responsiveness, especially at slow speeds.
Don't want the aileron action? Don't worry, just set the aileron left and right settings (keys B, C, P and
Q) to 0.

What are elevons?

Elevon (ELV) are for flying wing models where 2 servos work together to create both roll and pitch
functions (aileron and elevator). On right roll command the right surface goes up and the left down;
on up elevator command the right surface again goes up but the left now goes up as well.

What about v-tail programming?

V-tail (VTL) programming is for models with v-tails – two tail surfaces that are both angled equally to
the fuselage, not horizontal and vertical. The programming is similar to elevons (ELV) in that the tail
servos do 2 jobs, elevator and rudder. For example, on right rudder, both servos move right; on up
elevator, both servos move "up" – the left surface moves right and the right surface left.
Can I assign flaperons, elevons, or ailevators to a switch so they're only functional sometimes?
(I want to use them for special stunts but not the rest of the time.)
Using conditions, ABSOLUTELY! You can create one condition which has flaperons (FPN), and one
which does not, or set flaperons (FPN) in each condition but set the flap action differently in each, etc.
(A detailed explanation of conditions and condition use is covered in Section E .) Without conditions, no, you
can't assign these features to a switch. However, you COULD manually create any of them with
mixes as described in this chapter.
I am setting up flaperons on my 9Z, but I'm confused about how to operate them as flaps.
When flaperons (FPN) is activated, the two ailerons operate normally with aileron input. By default,
the flap action is set to zero to avoid any accidental adjustments to flap position in flight.
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