THUNDER TIGER Titan Raptor 50 Size 3D Heli Assembly & Maintenance Manual page 30

Radio and Control Linkage Setup For Raptor 50
The performance of any RC helicopter and how well it fly depends strongly on well the model has been
set up. We will go through the step-by-step on how to set up the transmitter and mechanics linkages
to make your Raptor 50 fly at its best. Before you start, please make up the length of all the pushrods
according to the recommended length given in our 3D setup drawing in the instruction manual. The
pushrod lengths we have provided are valid for beginners to expert 3-D flying. Then, we recommend
using the reset function on your transmitter to reset all settings to factory default values. Check the
end point adjustment, or ATV value, on your transmitter to make sure the values are at 100%. Next
we recommend program the numerical values we have provided in the table for the five points in the
throttle curves and for the collective pitch curves. Now you can proceed to do the mechanical adjustments.
We recommend leave the transmitter on during the following adjustments.
1.Throttle Adjustment.
The throttle arm on the carburetor should always be parallel to the throttle servo arm. When the throttle
barrel is half open, the throttle arm should be straight down. Leave it at this position. Turn on the
transmitter and leave the throttle in the Normal Throttle Mode. Set the throttle trim to the bottom and
set the throttle stick to the middle. Adjust the throttle pushrod to the correct length. Check the throttle
servo travel direction to confirm moving the throttle stick to the high position will move the throttle arm
to the full open position. Use a medium length servo arm. Pick a hole on the servo arm so when the
throttle stick is moved to the highest or the lowest position, it will fully open or fully close the throttle
arm without binding. Now is the time to use the End Point Adjustment or ATV feature on the transmitter
to fine tune the throttle servo travel to achieve this. Avoid using too large or too small ATV values.
The ATV values should stay between 90 to 100%.
2.Collective Pitch Setup
Collective control makes a helicopter ascend or descend by changing the main rotor blade angle.
Beginners and advance fliers must attach the collective control pushrod to different locations on the
collective control arm. The difference is that advance fliers desire more collective travel range, usually
+10 to -10 degrees of blade change range. Beginners only need -2 to +10 degrees of blade change
range. We assume you have programmed in our recommended values from the Table for the throttle
and pitch curves.
Collective Setup for Beginners:
Only the Normal Throttle Model will be used. We recommend using a collective pitch range of -2 to
+10 degrees. Move the throttle/collective control stick to the center. Attach the servo arm so the servo
arm is in a horizontal position. The servo output shaft has spline. Try mounting the servo arm with
different orientation until one of the arms becomes as close to horizontal. Attach the steel ball to the
collective servo arm at about 15 mm from the center of the servo arm. Move the throttle stick to the
middle position. Tilt the collective control arm/tray assembly so it is approximately in the middle of its
allowable mechanics tilting range. Use the molded pitch scale on the left side of the plastic frame.
The pointer on the collective arm should point to the mark for the hover position. See our drawings of
the molded scale in the other section of this manual. Attach the pushrod. The pushrod length should
be 51 mm as recommended in the drawing. Use a pitch gauge to check the blade angle, they should
be about 5.5 degrees. This is what you need for hovering. This gives a hovering rotor rpm around
1500.
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