GRAUPNER mx-20 Hott, Programming Manual

Page: 87 / 296

87 Detail program description - Helicopter type
Swashplate type: 3 Servos (2 Nick)
3
2
1
Swashplate type: 4 Servos (90°) 2 Nick / 2 Roll
2
5
1
3
Notice:
Except for the "1 Servo" choice, swashplate mixer
proportions must also be set in the
"Swashplate mixer "
menu, page 196.
Swashplate linearizing
After selecting the " Linear. swashpl. " line with the

arrow keys of the left or right touch pad, the
corresponding entry fi eld will be framed.
3Sv(2rol)
SEL
Linear. swashpl.
Swashplate
no
Rotor direct right
HELI TYPE
Pitch min. back
The "yes" entry will prevent undesired side effects
such as pitch change due to a roll function or tension
between swashplate servo rods.
This type of tension can arise when effected servos
strain for different displacement positions due to travel
which deviates from one another.
Linearizing will require a bit of familiarization on
the part of the pilot because, in order to linearize
the entire rotation travel for the servo arm, servo
travel can be appropriately reduced for small control
movements – similar to a substantial Expo setting – .
Rotor rotation
After selecting the " Rotor direct " line (rotor direction)
with the

arrow keys of the left or right touch pad,
the corresponding entry fi eld will be framed.
3Sv(2rol)
SEL
Linear. swashpl.
Swashplate
no
Rotor direct right
HELI TYPE
Pitch min. back
Once the choice for main rotor rotation direction is made
with the arrow keys, it is set by pressing the center
SET
button in the right touch pad.
"right": The main rotor turns clockwise when viewed
from above.
"left": The main rotor turns counter-clockwise when
viewed from above.
Simultaneously pressing the
 
or

keys of the
right touch pad ( CLEAR ) will set the option to "right".
right-hand
rotation
left-hand
rotation
This entry is necessary for correct operational
orientation of the torque and power compensation mixer
settings made in the
"Helicopter mixer" menu:
Pitch,
C1

throttle,
C1

tail rotor,
Tail rotor

throttle,
Roll

throttle,
Roll

tail rotor,
Pitch

throttle,
Nick

throttle,
Nick

tail rotor.
Pitch min
After selecting the " Pitch min " (pitch minimum) line with
the

arrow keys of the left or right touch pad, the
corresponding entry fi eld will be framed.
3Sv(2rol)
SEL
Linear. swashpl.
Swashplate
no
Rotor direct right
HELI TYPE
Pitch min. back