Adjusting Elevator, Activating Elevator Mixers (Mixer Elevatr+); Spoiler To Elevator = Spoiler Compensation (Spoiler Input To Elevatr+ Mixer); Throttle To Elevator = Throttle Compensation (Thr -Tr Input To Elevatr+ Mixer); Activating Inboard Flaps - Multiplex ROYALpro 7 Manual De Instrucciones

12.7. Adjusting elevator, activating ele-
vator mixers
(Mixer ELEVATR+)
In the template 4 FLAPS the elevator servo is already
assigned to the mixer ELEVATR+. Various mixers are
added to the signal in order to compensate for un-
wanted trim changes (e.g. from Spoiler or Throttle).
This is how the mixer is defined:
¡Define mixer
¨Exit
Name
1 Elevator ON
2 Spoiler ON
3 Flap ON
4 Thr -Tr ON
5 -------- ---
12.7.1. Spoiler to elevator = Spoiler compen-
sation
(Spoiler input to ELEVATR+ mixer)
When the spoilers are extended (or when Butterfly is
activated), many models require elevator trim correc-
tion.
The default method of working of the Spoiler input in
the elevator mixer is single-sided with two curve
points (œ). Point 2 (pt2) defines the elevator deflection
at full extension of Spoiler / Butterfly (57%). Point 1
(pt1) is generally set to half of Point 2 (pt1 = 28%) to
ensure that response to the control is linear.
If the effect of the spoilers themselves is non-linear,
then non-linear travel can be set to compensate for
this. For instance, Point 1 (pt1) could be set to
¼ of Point 2 (pt2) to obtain this effect:
£5x Mixer.ELEVATR+
¨Exit
œ pt1
Elevator— 100%
Spoiler — 28%
Flap — OFF
Thr -Tr — OFF
--------—-----------
12.7.2. Throttle to elevator = Throttle compen-
sation
(Thr -Tr input to ELEVATR+ mixer)
Many models tend to "balloon up" when the throttle is
opened (incorrect downthrust setting); this can be cor-
rected using down-elevator (stick forward).
The default method of working of the Throttle input in
the elevator mixer is single-sided with deadband (›-).
If down-elevator correction is only required after, say,
about the 1/3 throttle point, set 33% as deadband:
£5x Mixer.ELEVATR+
¨Exit
œ- dead
Elevator— 100% 100% *
Spoiler — 20%
Flap — OFF
Thr -Tr — 33% OFF
-------- ---- ----
ELEVATR+
How the inputs work:
š
asymmetrical
œ
single-sided, two curve points
š
asymmetrical
›-
single-sided, with deadband
---
pt2
100% *
57% *
OFF *
OFF *
trv
57% *
OFF *
*
12.8. Activating inboard flaps (camber-
changing flaps)
(Mixer FLAP+)
In the template 4 FLAPS servos 6 and 7 are assigned
to the FLAP+ mixer (camber-changing flap):
Fig. 12.8.1.: Four-flap wing
This mixer can be used to implement the following
functions:
Butterfly (Crow)
as glide path control or landing aid
Camber-changing flaps
for modifying the wing airfoil (thermal, speed)
Aileron support for better manoeuvrability
Snap-Flap (elevator to flap)
e.g. for aerobatics.
The structure of the FLAP+ mixer:
or
Mixer input
Nr. Name
Fig. 12.8.2.: The FLAP+ mixer in principle
These are the default settings for the FLAP+ mixer:
£5x Mixer.FLAP+
¨Exit
š
Flap
Spoiler — OFF
Aileron — OFF
Ele -—Tr— OFF
--------— ---------
In this mixer the Spoiler input is assigned a default
value of 100% travel (for Butterfly). All the other inputs
are OFF.
Mixer
6
name
7
Further servos
if required
trv' trv#
— OFF OFF *
100% *
OFF *
OFF --
Manual
39