Flap; Flaperon - GRAUPNER mc-16 Programming Manual

FLAP

FLAPERON

MIXER
Flap Flaperon Mixer
(access via Set-Up Menu)
For models with a V-tail the functions of elevator and
rudder must be mixed so with one another so that
during elevator movement both surfaces are moved
up or down in the same direction, and during rudder
control the surfaces move in opposite directions , i.e.
one surface upward and the other downward. The
"VTL" Program contains the appropriate mixer, to
control surfaces connected to separate servos. The
function is activated using the
INC
Servos connected to outputs 3 and 4 of the receiver
are automatically coupled with one another. The mix
relationship is changed using the dual- rate setting,
see page 20, where Ch4 changes the rudder effect
and Ch3 the elevator effect.
48 Fixed Wing Models
Butterfly Function as a
Landing Aid
Codes 17 ... 19
The Butterfly function serves to increase the gliding
angle as a landing aid; it can be used alone or
additionally with existing airbrakes or spoilers.
The flight programme "Fb" contains finished mixers.
Code 17 drives both ailerons downward with
movement of the throttle/spoiler control stick so they
act as flaperons. Code 19 drives them in the
opposite direction so that they form Butterfly (or
/ buttons. Crow) brakes. Code 18 allows the elevator to be
DEC
trimmed with application of brakes to retain the same
pitch trim. Each of these three mixers can be
adjusted individually; and of course they can also be
used individually.
So, for example, the spoiler
18, can be used in combination with normal
airbrakes in order to maintain pitch trim when the
airbrakes are deployed. The other two mixers would
have the mix proportion set to 0%, so that they
remain ineffective.
With ailerons that are full span, the mixers 17
(spoiler ailerons) and 18 (spoiler
be used together, to raise the flaperons at a large
angle of deflection and also to re-trim the elevator
accordingly.
However, particularly with the ailerons, the total
travel must be considered with operation as aileron
and flaperons. The settings in the dual rate function
must be adapted, if necessary, in order not to let the
servos reach their mechanical limits.
All three mixers can be changed between two
programmable settings using a switch attached to
socket 7 on the transmitter board. If the mix
proportion is set to 0% in one switch setting it makes
the respective mixer effectively inactive.
Spoiler
(access via Set-Up Menu)
With movement of the throttle/spoiler control stick
(control function 1) both aileron servos can be
adjusted for landing using the
from 0 to ±125% (0% = mixer inactive).
A switch connected to socket 7 of the transmitter
board, allows this function to be changed between
two options "SA0" and "SA1" (spoiler
The mixer must have the position, of control function
1, set that corresponds to normal flight, i.e. with the
spoilers retracted, and the ailerons in their neutral
position. The neutral point of this mixer is set after
calling the subroutine "SA OFFSET" by pressing the
CH SEL
elevator mixer, code appropriate neutral position, normally the bottom
position of the control stick, and the
pressed. The display will indicate the offset, being
the deviation from the control central position. The
offset is identical for both switching positions and
only needs to be set once.
elevator) can Note:
When Butterfly landing mode is wanted, codes 17 &
19 are used with both ailerons (flaperons) deflected
upward and the flaps extended downward.
SPOILER
FLAPERON MIXER
Aileron Mixer
/ buttons
INC DEC
ailerons).
button: The spoiler control is moved into the
CLEAR
button is