Question about Walkera Dragonfly #68 7 Channel 3D Aerobatic Radio Remote Controlled Electric Rc Helicopter Ready To Fly

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Walkera 37 remote heli

Walkera 37 helicopter the moter seems to turn clockwise instead of anticlockwise can anyone help me this is the 2nd one i have purchesd the moter is a 380sd brushed moter thanks

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Swap over the two wires that go from the motor to the speed controller. NB. don't swap over the wires at the battery this will destroy the speed controller.

Posted on Aug 31, 2009

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SOURCE: heli max hicro helicopter just keeps spinning in circles

Make sure you used the right blades, the top and bottom blades are different parts and if you try to replace an upper blade with a lower blade it will mess up the flight. The two sets of blades are reversed, the leading edge is on the opposite side because they spin in opposite directions.

If you are sure you have the correct blades, try to eliminate vibrations, especially in the upper rotor. Vibrations can throw off the gyro sensor and cause the helicopter to spin. If it isn't vibrating then you need to adjust the trim. If it is just a slight spin, you can try using the horizontal trim adjustment on the left stick. If this is not able to correct the spin, set the horizontal trim on the left stick to center and then remove the plastic canopy. On the circuit board you will see two screw adjustments labeled "SENS" and "SCALE". First, draw a mark on both of them with a marker making sure to touch both the screw and the plastic or board. This mark will be used to reset the knobs to their original positions if you mess up. The "SENS" (sensitivity) knob adjusts how hard the helicopter responds to the gyro. The "SCALE" (rotor scale) adjusts the balance between the two rotors. If it is a smooth rotation (as opposed to a skittish, jumpy, or erratic rotation), you need to adjust the SCALE knob as one rotor is consistently faster than the other. On the other hand, if it is erratic and jumpy, randomly spinning in quick bursts, you should adjust the SENS knob. Erratic spinning is a result of the gyro detecting vibrations and overcompensating, throwing the helicopter in a circle. Play with these knobs, try just slight adjustments and keep going until it flies right. Have common sense, don't turn the knobs too far at once, just small adjustments will make it easier. Also if turning the knob one direction makes it worse, go the other direction. If you turn the SCALE knob too much you may lose lifting power because it will reduce the maximum power of one of the motors.

Posted on Jun 02, 2009

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SOURCE: I recently bought a Walkera 43g heli with a 2801

This sounds like low power on the receiver BEC or the transmitter battery power. Check the voltages and cell polarities. You should not be getting interference with the 2.4 G system. If this is not the problem then I would send it back.

Posted on Aug 17, 2009

  • 1 Answer

SOURCE: i have an apache 3 channel helicopter.the top

Same problem I had. There are two motors. One to spin the top blade and a second to spin the bottom. My motor was defective out of the box to spin the top blade. Very poor quality as my AH 64 had a bad circuit board. I had to take parts from one to fix the other.

Posted on Sep 12, 2009

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SOURCE: i need to know what

I'm providing you a link below for the motor which is available for 19$ online suitable for your heli.
http://www.hobby-wing.com/hm-68b-z-38.html

Posted on Mar 27, 2011

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