72
Note
: Flight modes #1 and #2 are
duplicated for safety.
Throttle Curve Settings
Below are examples of possible throttle curves during
various flight conditions.
Since throttle curves can vary greatly due to engine and
muffler combinations, it will be necessary to fine-tune and
adjust these values during test flights to achieve a constant
main rotor rpm.
It will also be necessary to set the correct idle speed of the
engine when the throttle hold function is activated. This
idle value is located within the throttle hold function. This
will allow the engine to remain at idle when practicing
autorotations.
Gyro Gain Adjustment (All Gyros)
Please refer to your Gyro’s instruction manual for proper gain
settings.
Gyro Direction
It will also be necessary to confirm the direction the gyro
compensates when the body of the helicopter is rotated. To
do this, turn the radio system on and suspend the helicopter
by the main rotor head. Next, move the rudder stick to the
right and watch the direction that the tail rotor servo arm
travels. Now while watching the tail rotor servo arm, rotate
the body of the helicopter counterclockwise. The servo arm
should move in the same direction as when the rudder stick
was moved to the right. If the arm moves in the opposite
direction, reverse the gyro and re-test. Generally with the
G770 3D Gyro, it will be necessary to reverse the direction of
the gyro with the switch on the gyro.
Governor Setting
Set the Governor settings as shown in the radio
programming section. Set the throttle curve in normal mode
as shown, then set the throttle curves in stunt 1 and 2 up to
be a straight line at the top of the graph (+100%) and adjust
the governor settings to adjust head speed. If not using a
governor, you will need to set V-shaped throttle curves in
stunt 1 and 2, with the throttle set to +100% at full negative
and positive pitch, and 60% to 70% at center stick.
Normal
(Hover)
Stick Position
Pitch Range
Flight Mode 1
3D Stunt 1
Stick Position
Pitch Range
Stick Position
Pitch Range
Flight Mode 2
3D Stunt 2
(Duplicate of #1)
Autorotation
(Throttle Hold)
Stick Position
Pitch Range
+12º
0º
-12º
Low
1/4
1/2
3/4
High
+12º
0º
-12º
-9º
+12º
0º
-12º
-9º
Low
1/4
1/2
3/4
High
Low
1/4
1/2
3/4
High
+12º
0º
-12º
Low
1/4
1/2
3/4
High
Pitch Curve Settings
N
1
*2
H
Hovering
3D Flight #1
3D Flight #2
Autorotation
-12º
-12º
-12º
-12º
0º
0º
0º
0º
+12º
+12º
+12º
+12º
Flight
Mode
Application
Low Pitch
(Low Stick)
Hovering Pitch
(Half Stick)
High Pitch
(High Stick)
Pitch Range Settings
Hovering
Stick Position
Power Output
Normal Mode
Flight Mode N
3D Flight Stunt 1 and 2
Stick Position
Power Output
Flight Mode 1
100%
50%
0% (Idle)
40%
60%
1
2
3
4
Low
1/4
1/2
3/4
High
100%
50%
0% (Idle)
40%
Low
1/4
1/2
3/4
High
Throttle Curve Settings
PItch rAnge And curve settIngs
Summary of Contents for Vibe 90SG
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