GAUI X5 3D Flybarless Operating Instructions Manual page 39

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Upper figure:
The figure shows a throttle and a pitch curve schematic for normal flight and freestyle/aggressive flight.
Please consider these values merely reference points for your personal settings that you need to determine in practical
flight.
Lower figure:
Before measuring the angles of attack for the blades with a pitch scales, check that the swash plate, the swash plate tappets
and the blade holder linkage levers are aligned parallel with each other. The angle of attach of the rotor blades must be 0°.
If you move the control lever for the pitch function (in normal flight) all the way down, you should be able to measure an
angle of attach of -2 to -3 ° at the rotor blades. If the control lever is moved all the way to the top, the rotor blades should
achieve an angle of attack of 13°. The maximum negative pitch angle (for freestyle flight) is -13°.
The collective pitch angle is max. +/- 13° and the cyclic pitch angle 10°.
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Inspections before the start
Before taking the model into operation, check the following items:
1. Check all screw connections for tight fit.
2. Check the tooth backlash between the motor pinion and the main pinion. The pinions must interlock securely but the
gear should still run smoothly.
3. Check the tail rotor drive. All mechanics components of the tail rotor drive must work reliably and smoothly.
4. Check the correct and secure fit of the electronics components and the drive battery. Observe the required distance
between the drive battery and the electrical motor. It should be 5 to 10 mm.
5. Observe a firm fit of the drive battery. Use self-adhesive hook and loop tape in addition to the battery attachment loops.
The hook part of the hook and loop tape is glued to the battery support, the loop part to the battery.
6. Check that the rotor blades are balanced correctly. During the first flights, also observe correct tracking and adjust if
required.
7. Check all shafts and ball bearings for easy and correct run.
8. Check all cables. Especially observe the connections between the speed controller and the motor.
9. Check the positions of the tail servo and the tail rotor. In the basic position, the servo lever must be at a 90° angle to
the linkage (see figure 1-4). The linkage rod of the tail rotor slider sleeve then also has to be at a 90° angle to the tail
rotor shaft (see figure 1-5).
10. Check the tail rotor linkage for smooth running (figures 1-6 and 1-7).
11. After switching on the transmitter and connecting the flight battery, check the correct motion direction of the swash
plate servo and the tail rotor. If you turn the helicopter around the rotor shaft counter-clockwise, the gyro has to move
the slider sleeve of the tail rotor linkage towards the gear casing.
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