Final Servo Adjustment And Radio Setup - Horizon Hobby Venture50 Assembly Instructions Manual

Now that the radio system is completely installed into the helicopter, it is
necessary to check and adjust the following:
1. Servo Direction (Servo Reversing)
Check to insure that all servos have been set to the correct direction
as shown in programming section, pages 20-22.
2. Dual Rates
It is suggested that for initial flights the Dual Rate function values be
set as follows:
0 Position (low rate): 90%
1 Position (high rate): 100%
3. Exponential Settings
It is suggested that the exponential rate settings remain in the 0 value
position until the initial test flights. After initial flights, adjust the
exponential values to achieve the desired control feel.
4. Sub-Trim Settings
It is suggested that the correct neutral settings be achieved without
the use of the sub-trim feature. If sub-trim is used for final flight
adjustments, it is suggested that the sub-trim values not exceed 20.
If the sub-trim values are greater, readjust the control linkages and
reset the sub-trims to 0.
5. Pitch/Throttle Curve Adjustment
It is very important that the throttle and pitch curves are adjusted
properly to achieve the best performance from your helicopter.
When properly adjusted, the main rotor head rpm should remain
consistent throughout all maneuvers and throttle stick positions.
A constant rpm will also help to improve the effectiveness and
accuracy of the tail rotor and gyro systems.
A. Pitch Curve Adjustment
It will now be necessary to adjust the main rotor blade pitch to match
the settings shown in the chart. A main rotor blade pitch gauge (sold
separately) will be necessary for this procedure. Prior to setting the
main rotor blade pitch, it will be necessary to first set the required
blade pitch at 1/2 (center) stick. Turn the system on and set the
collective pitch stick to the center position as in previous steps. If all
linkages are properly adjusted, the swashplate/rotor head system
should appear as shown in the diagram below. Please note that at the
center pitch position, the seesaw mixing arms located on the rotor
head are parallel (level) to the seesaw shaft/flybar assembly.
Seesaw mixing arms
must be parallel to
seesaw shaft
View from front of model

FINAL SERVO ADJUSTMENT AND RADIO SETUP

Seesaw mixing arm
to main blade holder
control rod
Adjust as needed to level seesaw
mixing arms.
Pitch Range Settings
Flight Application
Mode
N Hovering
I Stunt & Aerobatic Flight
2 3D Flight
H AutoRotation
Pitch Curve Settings
Hovering (Linear Curve)
Flight Mode
N
-2°
Half High
Low
Stick Position
3D Flight
Flight Mode
2 (optional)
-10°
Low Half
High
Stick Position
Venture 50 Standard Flight
™
Once the position of the seesaw mixing arms have been established,
attach a main rotor pitch gauge (sold separately) to one rotor blade
and check the current pitch setting. The current pitch should be
approximately +5 at center stick. If the pitch is slightly less or more,
this can be adjusted later through the radio's Pitch Curve function.
Attach the pitch gauge to the second main rotor blade and match the
pitch at this time.
Venture 50 3D Flight
Once the position of the seesaw mixing arms has been established,
attach a main rotor pitch gauge (sold separately) to one rotor blade
and check the current pitch setting. Adjust the pitch to the desired
setting (0° pitch at center stick) by adjusting the seesaw mixing arm
to the main blade holder control rods as shown is Step 4-5. Attach
the pitch gauge to the second main rotor blade and match the
pitch at this time.
47
Low Pitch Hovering Pitch High Pitch
(Low Stick) (Half Stick)
-2° 5°
-5° 5°
-10° 0°
-5° 5°
Stunt & Aerobatic Flight
Pitch Range
13°
Flight Mode
10°
1
5°
-5° -5°
Low
Half
Stick Position
Autorotation
Pitch Range
Flight Mode
+10°
H
0°
-10°
Low
Half
Stick Position
(High Stick)
10°
10°
10°
13°
Pitch Range
13°
10°
5°
-5°
-10°
High
Pitch Range
+13°
5°
-5°
-10°
High